Aisan Kogyo Kabushiki Kaisha Patent applications |
Patent application number | Title | Published |
20160131090 | VAPORIZED FUEL PROCESSING APPARATUS - A vaporized fuel processing apparatus for an engine, which includes an air supply passage equipped with a throttle valve, has an adsorbent canister and a purge passage communicating the adsorbent canister with the air supply passage of the engine. The adsorbent canister is adapted to communicate with a fuel tank. The purge passage includes a first purge passage and a second purge passage such that the first purge passage is formed in parallel with the second purge passage. The first purge passage has a first purge valve. The second purge passage has in series a second purge valve and a purge pump. The first purge passage and the second purge passage are configured such that pressure loss in the second purge passage is less than pressure loss in the first purge passage. | 05-12-2016 |
20160131052 | FUEL VAPOR PROCESSING APPARATUS - A fuel vapor processing apparatus may include a canister and a purge device. The purge device may desorb fuel vapor from the canister and purge the desorbed fuel vapor to an engine. The fuel vapor processing apparatus may further include a purge control device. The purge control device may obtain a target purge quantity to be desorbed from the canister at a point of time during an operation of the engine. In addition, the purge control device may control a purge quantity during the operation of the engine such that the purge quantity reaches the target purge quantity. | 05-12-2016 |
20160126714 | HOUSING FOR ELECTRONIC CIRCUIT UNIT - A housing for an electronic circuit unit has a housing body and a bus bar. The housing body is made from a resin material and includes a bottom wall part and a side wall part for defining an inner space where electronic components are located. The bus bar includes a base portion buried in the bottom wall part and a folded portion buried in the side wall part. The folded portion includes two ends each connected to the base portion. | 05-05-2016 |
20160123280 | VAPORIZED FUEL PROCESSING APPARATUS - A vaporized fuel processing apparatus for an engine, which includes an intake passage equipped with a supercharging device and a throttle valve, has an adsorbent canister and a purge passage. The adsorbent canister is adapted to communicate with a fuel tank. The purge passage communicates the adsorbent canister with the intake passage of the engine. The purge passage has in series a purge valve for controlling communication through the purge passage and a purge pump for generating gas flow from the adsorbent canister toward the intake passage. The purge passage includes a sub-passage for communicating the adsorbent canister with the intake passage without passing through the purge pump. The purge passage divides into a first passage connected to the intake passage downstream of the throttle valve and a second passage connected to the intake passage upstream of the supercharging device. | 05-05-2016 |
20160123199 | POSITIVE CRANKCASE VENTILATION ("PCV") VALVE MOUNTING STRUCTURE - A positive crankcase ventilation (PCV) valve mounting structure has a blow-by gas passage with an upstream-side passage portion and a down-stream-side passage portion positioned in a cylinder head and an intake manifold, respectively. The blow-by gas passage may receive the PCV valve therein such that an upstream side portion of a valve case of the PCV valve is positioned within the upstream-side passage portion and that a downstream side portion of the valve case is positioned within the down-stream-side passage portion when the cylinder head and the intake manifold are joined together. A gasket may seal the cylinder head to the intake manifold and may include a seal portion positioned between the valve case of the PCV valve and at lest one of the cylinder head and the intake manifold. | 05-05-2016 |
20160108872 | FUEL SUPPLY DEVICE - A fuel supply device is obtained in which joint strength can be maintained in a joint portion of plural filter members configuring a fuel filter. A fuel filter with an overall bag shape is configured by welding together an upper face filter cloth a lower face filter cloth of the fuel filter at a welded portion. A sub tank upper side member and a sub tank lower side member nip the upper face filter cloth and the lower face filter cloth at a nipping position that is at a different position from the welded portion. | 04-21-2016 |
20160108865 | FUEL VAPOR PROCESSING APPARATUS - A fuel vapor processing apparatus may include a canister, a purge passage connecting the canister and an engine, a vapor passage connecting the canister and a fuel tank, a closing valve disposed in the vapor passage, a pressure detection device for detecting a pressure within the fuel tank, and a controller coupled to the closing valve and the pressure detection device. The controller may output a control signal to the closing valve for opening the closing valve or for closing the closing valve. The controller may include an abnormality determination device that may determine whether or not the pressure detection device is operating properly based a detection value of the pressure detection device detected at a time when the engine is inactive and after the controller outputs the control signal to the closing valve for opening the closing valve or for closing the closing valve. | 04-21-2016 |
20160084208 | VAPORIZED FUEL PROCESSING APPARATUS - A vaporized fuel processing apparatus includes a case and a heating unit removably attached to the case by a twist lock structure. The case has a tank port and a purge port and contains an adsorbent therein. The tank port communicates with a fuel tank. The purge port communicates with an internal combustion engine. The heating unit has an atmospheric port and a heater. The atmospheric port is open to the atmosphere. The heater is disposed between the atmospheric port and the adsorbent. | 03-24-2016 |
20160076490 | VAPORIZED FUEL PROCESSING APPARATUS - A vaporized fuel processing apparatus has a casing defining an adsorption chamber therein and having a tank port, a purge port, and an atmospheric port. The tank port is connected to a fuel tank. The purge port is connected to an internal combustion engine. The atmospheric port is open to the atmosphere. A heater is disposed between the adsorption chamber and the atmospheric port and has a fin heat exchanger and a heating element. The heating element is configured to generate heat by electricity supply. The fin heat exchanger is joined to the heating element. The surface area of the fin heat exchanger between the heating element and the adsorption chamber is larger than the surface area of the fin heat exchanger between the heating element and the atmospheric port. | 03-17-2016 |
20160059693 | FUEL SUPPLY DEVICE - A fuel supply device is provided. The fuel supply device includes a set plate closing an opening of a fuel tank. A housing is disposed on an opposite side of the fuel tank with respect to the set plate and stores an electric circuit. A connector is disposed on the opposite side of fuel tank with respect to the set plate, and between the set plate and the housing, connecting the set plate and the housing. An air passage is disposed between the set plate and the housing, and communicates with atmosphere. The set plate, the housing and the connector are provided integrally. | 03-03-2016 |
20160040631 | VAPORIZED FUEL PROCESSING APPARATUS - A vaporized fuel processing apparatus for a vehicle having a fuel tank has a casing filled with an adsorbent and having a first outer surface. The casing has first ribs protruding from the first outer surface and extending without intersecting with each other. The casing has at least one second rib protruding from the first outer surface. At least one pair of the first ribs adjacent to each other are connected with each other via one of the second ribs only. The other pairs of the first ribs adjacent to each other are connected with each other via one of the second ribs only or are not connected with each other via any one of the second ribs. | 02-11-2016 |
20160025270 | FUEL SUPPLY SYSTEM - A fuel supply system has a fuel tank, a sub-tank, a fuel pump, an attachment member, and one or more shaft members. The fuel tank has an upper wall and a lower wall. The sub-tank is located on the lower wall inside the fuel tank and has one or more guide portions. The fuel pump is housed in the sub-tank. The attachment member is attached to the upper wall of the fuel tank and has a plurality of support portions. The shaft members are attached to the support portions so as to extend downward from the support portions and are slidably inserted into the guide portions of the sub-tank, respectively, such that the attachment member is connected with the sub-tank and is movable relative to the sub-tank in the vertical direction. The number of the support portions is greater than the number of the shaft members. The shaft members are selectively attached to the support portions. | 01-28-2016 |
20150345994 | ROTATION ANGLE DETECTION DEVICE - A rotation angle detection device may include a magnetic detection member that is configured to detect a rotation angle of a rotation member, a holding member holding the magnetic detection member, and a plurality of wiring members for magnetic detection that are attached to the holding member and are connected to the magnetic detection member. The magnetic detection member has a flat plate-shaped body portion, and a plurality of lead terminals. The holding member holds the body portion of the magnetic detection member in a manner that the body portion can longitudinally slide relative to the holding member. The wiring members for magnetic detection respectively have lead terminal connecting portions. The lead terminals of the magnetic detection member are laid on the lead terminal connecting portions of the wiring members for magnetic detection and bonded thereto. | 12-03-2015 |
20150330346 | FUEL SUPPLY SYSTEM FOR INTERNAL COMBUSTION ENGINE - A fuel supply system may include a fuel pump configured to supply fuel from a fuel tank to a target, a motor for driving the fuel pump, and a controller coupled to the motor. The controller may determine a duty ratio of a control signal through a feedback control and to output the control signal to the motor, so that a fuel pressure of the fuel supplied from the fuel tank approaches a target fuel pressure. The controller may estimate the duty ratio based on the target fuel pressure and information regarding a fuel pressure of the fuel supplied from the fuel tank, and may guard an upper limit of the duty ratio by an upper limit guard value. The upper limit guard value may be determined based on a rotational speed of the motor. | 11-19-2015 |
20150330337 | FUEL VAPOR PROCESSING APPARATUS - A fuel vapor processing apparatus may include a vapor passage connecting a canister and a fuel tank of an engine system. An opening and closing valve may be disposed in the vapor passage. A valve opening device may be coupled to the opening and closing valve and may forcibly open the valve when the internal pressure of the fuel tank detected by a pressure has reached to a set pressure value. | 11-19-2015 |
20150322902 | VAPORIZED FUEL TREATING DEVICE - A vaporized fuel treating device having a canister that is configured to adsorb vaporized fuel in a fuel tank and to feed the adsorbed vaporized fuel to an engine may include a pressure sensor that is configured to periodically detect an inner pressure of the fuel tank, and a pressure sensor failure determination device that is configured to determine that the pressure sensor has failed when a change of the inner pressure detected by the pressure sensor in a unit of time is not less than a predetermined pressure value that is greater than a maximum value of possible pressure changes within the fuel tank. | 11-12-2015 |
20150292447 | VAPORIZED FUEL PROCESSING APPARATUS - A vaporized fuel processing apparatus has a fuel tank, a canister configured to adsorb vaporized fuel, a vapor path connecting the canister to the fuel tank, a closing valve provided in the vapor path, a pressure sensor measuring inner pressure of the fuel tank, and an electric control unit connected with the closing valve and the pressure sensor. The electric control unit is configured to close or open the closing valve in order to initialize the closing valve or open the closing valve in order to release the vaporized fuel from the fuel tank. Further, the electric control unit is configured to detect failure of the closing valve depending on change in the inner pressure of the fuel tank within a predetermined time from when the closing valve is opened or is closed for initialization of the closing valve or release of the vaporized fuel from the fuel tank. | 10-15-2015 |
20150177048 | LIQUID AMOUNT MEASURING DEVICE - A liquid amount measuring device | 06-25-2015 |
20150159598 | VAPORIZED FUEL PROCESSING APPARATUS - A vaporized fuel processing apparatus has a canister capable of adsorbing vaporized fuel generated in a fuel tank, a vapor path connecting the canister to the fuel tank, a closing valve provided in the vapor path, a purge path connecting the canister to an intake path of an engine, a pressure sensor for detecting the inner pressure of the fuel tank, and an electric control unit controlling the vaporized fuel processing apparatus. When the inner pressure of the fuel tank is in excess of the measurement range of the pressure sensor, the learning of the valve opening start position is prohibited, and pre-learning depressurization control is performed through change of the stroke amount of the closing valve in the valve opening direction until the inner pressure of the fuel tank is within the measurement range of the pressure sensor. | 06-11-2015 |
20150159577 | FUEL SUPPLY SYSTEM - A fuel supply system for an internal combustion engine has a fuel pump capable of pumping fuel from a fuel tank to the internal combustion engine, a motor driving the fuel pump, a pressure sensor configured to detect pressure of the fuel pumped from the fuel pump, and a control unit configured to output control signals to the motor. The control unit is configured to perform feedback control of duty ratio of the control signals for the motor, and to control the duty lower limit guard value in order to limit an amount of decreases of the duty lower limit guard value in the step-like manner when a duty lower limit guard value decreases. | 06-11-2015 |
20150159568 | VAPORIZED FUEL PROCESSING APPARATUS - A vaporized fuel processing apparatus has a canister capable of adsorbing vaporized fuel generated in a fuel tank, a closing valve provided in the vapor path connecting the canister and the fuel tank and having a valve seat and a valve movable portion, a pressure sensor configured to detect inner pressure of the fuel tank, and an electric control unit. The electric control unit is configured to set a learning value that is an axial distance between the valve seat and the valve movable portion at a valve opening start position at a fail-safe value such that the closing valve is in the valve closing state when the inner pressure of the fuel tank decreases by less than a predetermined value after repeating a stroke control process more than predetermined times. | 06-11-2015 |
20150159567 | VAPORIZED FUEL PROCESSING APPARATUS - A vaporized fuel processing apparatus has a canister loaded with an adsorbent capable of adsorbing vaporized fuel generated in a fuel tank, a closing valve provided a vapor path connecting the canister and the fuel tank and having a valve seat and a valve movable portion such that a distance between the valve seat and the valve movable portion is stroke amount, a pressure sensor configured to detect inner pressure of the fuel tank, and an electric control unit. The electric control unit is configured to perform abnormal state depressurization control of the fuel tank, in a state that the pressure sensor cannot detect the inner pressure of the fuel tank, by setting the stroke amount of the closing valve at a fail-safe value in which the closing valve is closed, and then changing the stroke amount in a valve opening direction of the closing valve from the fail-safe value. | 06-11-2015 |
20150159566 | VAPORIZED FUEL PROCESSING APPARATUS - A vaporized fuel processing apparatus has a closing valve provided in a vapor path connecting an adsorbent canister to the fuel tank, a pressure sensor configured to detect the inner pressure of the fuel tank, and an electric control unit configured to determine whether the amount of increase in the inner pressure of the fuel tank is within an acceptable range or not, to learn a valve opening start position of the closing valve when the inner pressure of the fuel tank is reduced by an amount not less than a predetermined value, and to stop or prohibit the learning of the valve opening start position of the closing valve when the amount of increase in the inner pressure of the fuel tank is not within the acceptable range during or before the learning of the valve opening start position of the closing valve. | 06-11-2015 |
20150153295 | SENSOR FOR DETECTING PROPERTY OF LIQUID - A liquid sensor may comprise a outer member, an inner member, a storage space having a tubular shape defined by the outer member and the inner member, an inflow path disposed on a first side in an axis direction of the storage space, and an outflow path disposed on a second side in the axis direction of the storage space. The inflow path may comprise a center line not passing through a center axis of the storage space in a plane vertical to the axis direction of the storage space such that the liquid inside the storage space forms a spiral flow including a flow from the first side in the axis direction of the storage space to the second side in the axis direction of the storage space and a flow revolving along a circumferential direction of the storage space. | 06-04-2015 |
20150152828 | FUEL INJECTOR - In a fuel injector, a first surface | 06-04-2015 |
20150144111 | FUEL VAPOR PROCESSING APPARATUS - A fuel vapor processing apparatus may include a canister capable of adsorbing fuel vapor produced in a fuel tank, a closing valve provided in a vapor passage connecting the canister and the fuel tank, a purge passage connecting the canister and an intake passage of an engine, and a control device. The closing valve may include a movable valve member movable along a linear path and an actuator coupled to the movable valve member. The control device may be coupled to the actuator and may be configured to control the actuator such that the position of the movable valve member along the linear path changes according to a deviation of an actual tank internal pressure of the fuel tank from a target tank internal pressure. | 05-28-2015 |
20150136087 | FUEL SUPPLYING DEVICE - A fuel supplying device supplying fuel from a fuel tank to combustion device may comprise a fuel pipe configured to communicate the fuel tank with a delivery pipe of the combustion device, and a sensor unit configured to detect a property of the fuel. The fuel pipe may branch into a plurality of branch pipes including a first branch pipe and a second branch pipe at an intermediate position between the fuel tank and the combustion device. The sensor unit may comprise a plurality of sensors including a first sensor and a second sensor. The first sensor may be disposed in the first branch pipe and configured to detect the property of the fuel within the first branch pipe. The second sensor may be disposed in the second branch pipe and configured to detect the property of the fuel within the second branch pipe. | 05-21-2015 |
20150114100 | LIQUID AMOUNT MEASURING DEVICE - The fuel amount measuring device | 04-30-2015 |
20150107561 | HEAT STORAGE MEMBER FOR CANISTER - A heat storage member housed in a canister together with an adsorbent capable of adsorbing fuel vapor has a sealed container and a phase-change material housed in the sealed container. The phase-change material becomes semisolid gel state at the melting point of the phase-change material. The phase-change material is disposed along an entire inner surface of the sealed container such that a space capable of compensating for volume alteration of the phase-change material caused by phase-change is formed at a center of an inner space of the sealed container. | 04-23-2015 |
20150096355 | FAILURE DETERMINATION DEVICES FOR FUEL VAPOR PROCESSING SYSTEMS - A failure detecting device for a fuel vapor processing system may include a leakage determination device configured to determine leakage of fuel vapor from a target region of the fuel vapor processing system. The leakage determination device may include a canister closed valve provided in an atmospheric passage connected between a canister and an atmosphere. The canister closed valve may switch between an open position and a closed upon receiving a supply of electric power, and may maintain the open position or the closed position when no electric power is received. | 04-09-2015 |
20150090011 | LIQUID SENSOR - A liquid sensor may comprise a first electrode, a second electrode disposed inside the first electrode, and a partition wall comprising a surface defining a storage space with a first opposing surface of the first electrode and a second opposing surface of the second electrode. One of the first electrode, the second electrode and the partition wall may comprise a first communication opening communicating an inside of the storage space and an outside of the storage space and disposed at an upper portion of the storage space. One of the first electrode, the second electrode and the partition wall may comprise a second communication opening communicating the inside of the storage space and the outside of the storage space and disposed lower than the first communication opening. An opening direction of the first communication opening may be different from an opening direction of the second communication opening. | 04-02-2015 |
20150076943 | TERMINAL FOR STATOR - The first extending portion 26 overlaps the second extending portion 27 in a radial direction at one part in the circumferential direction and overlaps the third extending portion 28 in the radial direction at another part in the circumferential direction. The second extending portion 27 overlaps the first extending portion 26 in the radial direction at one part in the circumferential direction and overlaps the third extending portion 28 in the radial direction at another part in the circumferential direction. The third extending portion 28 overlaps the first extending portion 26 in the radial direction at one part in the circumferential direction and overlaps the second extending portion 27 in the radial direction at another part in the circumferential direction. | 03-19-2015 |
20150059878 | PRESSURE REGULATING VALVE - A pressure regulating valve includes a device body and an actuator. The device body includes a valve seat member, a valve, which is capable of closing the first opening of the valve seat member, an urging member, which urges the valve toward the valve seat member, a piston arranged opposite to the valve across the valve seat member, an actuator, which adjusts the position of the piston, and a protrusion provided on at least one of the piston and the valve. When the tip end of the protrusion comes into contact with the piston or the valve, the second opening of the second fluid passage is closed. When the tip end of the protrusion is not in contact with any of the piston and the valve and the second opening is opened, the second fluid passage is in communication with the pressure regulation chamber. | 03-05-2015 |
20150059470 | MEASURING DEVICE - A measuring device may be provided with a cover configured to close an opening provided on a fuel tank; a plug configured to close a through hole provided on the cover; and a sensor configured to measure a property of fuel inside the fuel tank. The plug may be provided with an electrical connector and a fuel passage. The electrical connector may be configured to electrically connect inside and outside of the fuel tank. The electrical connector may pierce through the plug from an upper surface to a lower surface of the plug The fuel passage may include an inlet configured to open to the inside of the fuel tank to receive the fuel from the inside of the fuel tank. The sensor may be disposed in the fuel passage of the plug. | 03-05-2015 |
20150013799 | COMPONENT ATTACHING STRUCTURE AND PRESSURE REGULATOR - A component attaching structure for attaching a first component and a second component to each other. The first component has an attachment hole and an internal thread formed therein. The second component has an external thread formed thereon. The second component supports a sealing member, which seals an interface between an outer circumferential surface of the second component and an inner circumferential surface of the attaching hole at a position closer to a tip end of the second component than the external thread. If the direction in which the second component moves relative to the first component when the second component is attached to the first component is defined as an attaching direction, a distance between the external thread and the sealing member in the attaching direction is greater than the length of the internal thread in the attaching direction. | 01-15-2015 |
20150007540 | FILTER DEVICE AND PRESSURE REGULATOR - A filter device includes a cylindrical filter, a lid member, and an urging member. The filter catches foreign matter contained in gaseous fuel. The filter has a first opening located in one end and a second opening located in the other end of the filter opposite to the first opening. The filter is arranged in the drain tank with the first opening closed with a wall member such that gaseous fuel is allowed to be drawn into the filter through the inflow portion. The gaseous fuel that has passed through the filter flows out of the drain tank through the outflow portion. The lid member closes the second opening of the filter. The urging member urges the lid member toward the filter. | 01-08-2015 |
20140375321 | SENSOR DEVICE - Provided herein is a sensor device that may include a first electrode pair, a second electrode pair, and a detector. The first electrode pair may be covered with a protective film. The second electrode pair may have at least a portion thereof exposed to liquid. The detector may be configured to detect a property of the liquid by using a value concerning an electrical conductivity of the liquid as determined by using the second electrode pair and a value concerning a capacitance of the first electrode pair. | 12-25-2014 |
20140360471 | CONTROL SYSTEM FOR INTERNAL COMBUSTION ENGINE AND INERT GAS CONCENTRATION DETECTING DEVICE FOR COMPRESSED NATURAL GAS - In a control system that includes a pressure accumulating portion that supplies CNG to a fuel injection valve and a regulator that adjusts a pressure in the pressure accumulating portion to a set pressure and of which a valve element opens when CNG is supplied to the pressure accumulating portion and closes when supply of CNG to the pressure accumulating portion is shut off, a control parameter relating to a combustion state in an internal combustion engine is controlled on the basis of a length of a period during which an opening degree of the valve element reduces from a first predetermined opening degree to a second predetermined opening degree when the pressure in the pressure accumulating portion is adjusted to the set pressure by the regulator. | 12-11-2014 |
20140352542 | FUEL VAPOR PROCESSING APPARATUS - A fuel vapor processing apparatus including: a passage for fluid; a tank port and a purge port formed on one end side of the passage; an atmospheric air port formed on the other end side; and four or more adsorption layers filled with a fuel adsorbing material, wherein the main adsorption layer, and a region provided on the atmospheric air port side of the main adsorption layer are provided; the adsorption layers other than the main adsorption layer, and separation parts which separate the adjacent adsorption layers are provided in the region, and in the at least two separation parts inside the region, when the cross-sectional area of each of the at least two separation parts perpendicular to a flow direction of the passage is converted into a circular cross-sectional area, a distance between the adjacent adsorption layers is larger than the mean value of diameters of the each separation part. | 12-04-2014 |
20140352428 | LIQUID PROPERTY DETECTING DEVICE - A liquid property detecting device may be configured to be disposed in a liquid feeding unit including a container, a pump, and a feed pipe. The liquid property detecting device may comprise a first pair of electrodes and a filter. The first pair of electrodes may be configured to be disposed upstream of the feed pipe in a direction in which the liquid stored in the container flows while the pump is driving. The first pair of electrodes may be configured to detect a liquid property of the liquid stored in the container. The filter may be configured to be disposed upstream of the first pair of electrodes in the direction in which the liquid stored in the container flows while the pump is driving. | 12-04-2014 |
20140335386 | BUS BAR MODULES - A bus bar module may include a circuit side member associated with a battery assembly having a plurality of battery cells arranged next to each other in an arrangement direction, and a bus bar electrically connecting the circuit side member with the battery cells of the battery assembly. A gas discharge duct may be integrated with the circuit side member and configured to allow flow therethrough of gas discharged from safety valves associated with the battery cells. | 11-13-2014 |
20140335385 | BUS BAR MODULES - A bus bar module may have a bus bar including a battery side terminal portion and a connection portion. The battery side terminal portion may electrically connect electrode terminals of two adjacent battery cells of a battery assembly. The connection portion may electrically connect the battery side terminal portion and a terminal of a circuit side member associated with the battery assembly. The bus bar may be configured as a single member. | 11-13-2014 |
20140320115 | ROTATION ANGLE DETECTOR - A rotation angle detector for detecting the magnetic change caused by rotation of a rotatable member, has a resin molding, a pair of magnetic property detection members, and a plurality of sensor terminals. Each of the magnetic property detection members has a sensor portion for detecting the magnetic change caused by the rotatable member and a plurality of connecting leads. The sensor terminals are individually connected to each connecting lead. The magnetic property detection members are located within in the resin molding. The sensor portions of the magnetic property detection members are fixedly coupled to each other by an adhesive. | 10-30-2014 |
20140300242 | BRUSHLESS MOTOR - A brushless motor may comprise a stator. The stator may comprise a core body comprising a plurality of partial cores and a coil wire. Each partial core may comprise a yoke positioned on an outer edge of the stator, teeth extending towards a rotor from the yoke, and a connector extending to an adjacent partial core from the yoke, to be connected to the yoke of the adjacent partial core. The stator may be formed to be in a tubular state by being transformed from an opened state. Each of the yokes of the partial cores may comprise a facing surface facing the yoke of the adjacent partial core. At least one set of the facing surfaces among a plurality of sets of the facing surfaces facing each other may be disposed with a gap in between in the circumferential direction of the stator. | 10-09-2014 |
20140255199 | ROTATOR - A rotator may be configured to be accommodated in a casing of a pump for sucking a fluid into the casing and discharging the fluid outside of the casing. The rotator may comprise an insert portion configured to insert a rotating shaft and one or more communicating openings. The one or more communicating openings may be disposed in a vicinity of the insert portion, and pierce the rotator in a direction along the rotating shaft. The rotator may be made of resin. A flow direction of the resin located around the insert portion and the one or more communicating openings may extend at least in the direction along the rotating shaft. | 09-11-2014 |
20140248167 | ELECTRIC VACUUM PUMP - In an electric vacuum pump, a pump housing and a lower-end cover member respectively include positioning retainers respectively formed on outer peripheries of the pump housing and the lower-end cover member. A case includes positioning retainers each protruding inward from an inner peripheral surface of the case. The positioning retainers are in contact with the positioning protrusions, thereby positioning the pump housing and the lower-end cover member with respect to the case. The positioning protrusions are formed with screw holes. | 09-04-2014 |
20140241903 | ELECTRIC PUMP - An electric pump may comprise a pump portion including an impeller, a motor portion configured to activate the pump portion, and a housing configured to contain the pump portion and the motor portion. The motor portion may comprise a rotor configured to activate the impeller, a stator configured to rotate the rotor, a control circuit configured to control a rotation of the rotor, a resin portion configured to cover the stator, and a heat transferring portion contacting the control circuit and the housing, thermal conductivity of the heat transferring portion being higher than thermal conductivity of the resin portion. | 08-28-2014 |
20140230544 | LIQUID LEVEL MEASURING DEVICE - A liquid level measuring device for measuring a liquid level of liquid stored in a container may comprise a discharging unit, a first storing space, and an electrode unit. The discharging unit may be configured to discharge the liquid compressed by a pump. The pump may be configured to suck the liquid stored in the container and feed the liquid toward a liquid usage device by pressure. The first storing space may be located in the container and configured to accept the liquid discharged from the discharging unit. The electrode unit may be disposed in the first storing space and comprising a first pair of electrodes configured to measure the liquid level of the liquid within the first storing space. The electrode unit may compose at least a part of a wall surface defining the first storing space. | 08-21-2014 |
20140183934 | BRAKE SYSTEM - A brake system includes: a first passage connected to a negative pressure chamber of a brake booster; a second passage branching from the first passage; an electric vacuum pump in the second passage; a first check valve for preventing inflow of a fluid from the intake system to the negative pressure chamber through the second passage; and a second check valve for preventing inflow of a fluid from the intake system to the negative pressure chamber through the first passage and inflow of a fluid from the intake system and a discharge outlet of a pump part to a suction inlet in the pump through the first passage, wherein a filter is provided between a discharge outlet of the pump and the intake system. | 07-03-2014 |
20140182716 | FLOW CONTROL VALVES - An embodiment of a flow control valve includes a housing and a valve member. The valve member is movable in an axial direction within the housing, so that a flow rate of a fluid flowing within the housing changes in response to a position of the valve member within a control range in the axial direction. A spring device biases the valve member in the axial direction, so that the valve member moves in the axial direction against a biasing force of the spring device according to a difference in pressure on an upstream side and a downstream side of the valve member. The spring device includes a spring constant that changes according to the position of the valve member in the axial direction within the control range. | 07-03-2014 |
20140158098 | EXHAUST GAS RECIRCULATION VALVE - In an EGR valve, a valve element is moved with respect to a valve seat to adjust a passage section width of a measuring section, thereby regulating an EGR gas flow rate in a passage. The valve seat includes a valve hole, a first end face facing to a downstream side of the passage and a second end face facing to an upstream side of the passage. The inner circumferential surface of the valve hole has a concave curved shape with an inner diameter gradually increasing toward the second end face. The valve element is placed inside the valve hole to be movable in between a fully closed position and a fully open position. While the valve element is placed in the fully open position, passage section widths of parts of the measuring section in an EGR gas flow direction are approximate to each other. | 06-12-2014 |
20140137844 | EXHAUST GAS RECIRCULATION APPARATUS FOR AN ENGINE - An EGR apparatus for an engine includes an EGR passage, an EGR valve, an accelerator sensor, and an ECU. The ECU compares a change amount (accelerator operating speed) per unit of time of an accelerator opening degree to a predetermined first determination value. When it is determined that a request for deceleration operation or acceleration operation is made to an engine, the ECU issues a fully closing command to the EGR valve. When it is determined that the deceleration or acceleration operation request is continued, the ECU continues to issue the fully closing command. When the deceleration or acceleration operation request is removed and the accelerator opening degree is larger or smaller than a predetermined second determination value, the ECU releases the fully closing command. | 05-22-2014 |
20140130784 | PCV VALVES - A PCV valve may include a housing and a valve member movable in an axial direction within the housing. A plurality of guide portions may be formed on the valve member, so that the plurality of guide portions slidably contact the monitoring portion of the housing as the valve member moves in the axial direction. When a first part of a tapered portion of the valve member opposes to the monitoring portion, a first contact part of each of the guide portions may contact the monitoring portion. When a second part of the tapered portion having a smaller diameter than the first part opposes to the monitoring portion, a second contact part of each of the guide portions may contact the monitoring portion. The second contact part may be smaller than the first part with respect to a width in a circumferential direction or may have a circumferential contact length smaller than that of the first part. | 05-15-2014 |
20140123964 | EXHAUST GAS RECIRCULATION VALVE - In an EGR valve, a valve element is seatable on a valve seat by stroke movement of a valve stem caused by an actuator. The valve seat has a cylindrical part with which a step of the stem is engageable. By the stroke movement of the valve stem, the opening degree between the valve seat and the valve element is changed. The valve seat is moved in the passage in the stroke movement direction to be engageable with a shoulder of the passage. As the valve element is moved together with the stem, the opening degree in the low opening range is changed. As the step of the stem is engaged with the cylindrical part and the valve seat is moved with respect to the shoulder, the opening degree in the high opening range is changed. | 05-08-2014 |
20140119962 | NEGATIVE PRESSURE SUPPLY UNIT - A negative pressure supply unit includes an electric vacuum pump including a motor part and a pump part placed in a case, and a cover member closing the case and is configured to supply negative pressure generated by the pump or in an engine intake pipe to a negative pressure chamber of a brake booster. The cover member includes: a suction passage for sucking a fluid from the negative pressure chamber into the pump part; a discharge passage for discharging the fluid ejected from the pump part to pump outside; and a branch passage branching from the suction passage to connect to an engine intake system. A first check valve provided in the discharge passage permits a fluid to flow only in a discharge direction. A second check valve provided in the branch passage permits a fluid to flow from the suction passage to the intake system. | 05-01-2014 |
20140119957 | ELECTRIC VACUUM PUMP - An electric vacuum pump includes: a motor part and a pump part placed in a case, and a cover member closing the case from a pump part side. The cover member includes: a suction port for sucking a fluid from pump outside into the pump part; a silencer part including a space part communicating with a discharge outlet of the pump part; and a discharge port for discharging a fluid ejected from the pump part to pump outside. The suction port has an end portion placed in sealingly contact with the pump part to hermetically communicate with a suction inlet of the pump part. The discharge port is formed with a throat part. | 05-01-2014 |
20140119951 | FAILURE DIAGNOSIS APPARATUS OF BRAKE SYSTEM AND FAILURE DIAGNOSIS METHOD OF BRAKE SYSTEM - A failure diagnosis apparatus of brake system includes a determination unit to determine functional normality of an electric vacuum pump based on a detection result of at least one of a booster internal pressure detection unit for detecting internal pressure of a negative pressure chamber of a booster and a current value detection unit for detecting an operating electric current value of the pump and a detection result of a pipe internal pressure detection unit for detecting internal pressure of a pipe communicated with a discharge port of the pump. | 05-01-2014 |
20140116394 | FUEL SUPPLY SYSTEM AND FUEL SUPPLY METHOD FOR INTERNAL COMBUSTION ENGINE - A fuel supply system for an internal combustion engine includes a heat exchanger that has a heat exchanging wall between a liquefied fuel passage and an engine coolant passage. Heated and vaporized fuel flowing out from the liquefied fuel passage of the heat exchanger is supplied to the internal combustion engine. A flow rate of liquefied fuel supplied to the liquefied fuel passage of the heat exchanger is set. A flow rate of engine coolant supplied to the engine coolant passage of the heat exchanger is determined on the basis of a temperature of the engine coolant supplied to the engine coolant passage of the heat exchanger such that nucleate boiling or transition boiling of the liquefied fuel in the set flow rate occurs near a boundary between nucleate boiling and transition boiling in the liquefied fuel passage. | 05-01-2014 |
20140102420 | FUEL VAPOR RECOVERY APPARATUS - A fuel vapor recovery apparatus to be mounted on a vehicle having a fuel tank has an adsorbent canister capable of adsorbing and desorbing fuel vapor vaporized in the fuel tank, a vapor path providing communication between the fuel tank and the adsorbent canister, a purge path providing communication between the adsorbent canister and an intake path of an internal combustion engine, a purge valve configured to open and close the purge path, a blocking valve configured to open and close the vapor path and having a valve body, and a regulator for controlling the purge valve and the blocking valve. The fuel tank is sealed when the blocking valve is closed. The fuel tank is configured to be depressurized by opening the blocking valve. The blocking valve is composed of a motor valve that has a driving motor and can adjust an opening amount by controlling a stroke of the valve body. | 04-17-2014 |
20140096849 | FUEL SUPPLY DEVICE - A fuel supply device is obtained in which joint strength can be maintained in a joint portion of plural filter members configuring a fuel filter. A fuel filter ( | 04-10-2014 |
20140069383 | CONTROLLER FOR ENGINE - A bi-fuel engine is selectively operable in a first operation mode that uses liquid fuel and a second operation mode that uses gas fuel. A controller for the engine is configured to start a depressurizing process that supplies at least one of the cylinders with gas fuel as pressure of the gas fuel becomes greater than or equal to an initiation determination value when the engine is operating in the first operation mode. | 03-13-2014 |
20140060499 | EVAPORATION FUEL PROCESSING DEVICE - The present invention provides an evaporation fuel processing device including: a passage formed inside so as to allow a fluid to flow through the passage; a tank port and a purge port formed on one end side of the passage; an atmospheric air port formed on the other end side of the passage; and adsorbent layers filled with adsorbent which can adsorb evaporation fuel components, the adsorbent layers being provided in the passage, wherein a region which is constituted of three or more adsorbent layers and separating parts for separating the adjacent adsorbent layers, and in which a total volume of the adsorbent layers is set smaller than a total volume of the separating parts, is provided on an atmospheric air port side of the passage. | 03-06-2014 |
20140060497 | EVAPORATION FUEL PROCESSING DEVICE - An evaporation fuel processing device is provide including: a passage; a tank port and a purge port on one end side of the passage; an atmospheric air port on the other end side of the passage; and adsorbent layers filled with adsorbent for evaporation fuel components, provided in the passage; a region provided on an atmospheric air port side of the passage, being constituted of three or more adsorbent layers and separating parts for separating the adjacent adsorbent layers, in which a volume of the adsorbent layer is smaller in the adsorbent layer closer to the atmospheric air port, a volume of the separating part is larger closer to the atmospheric air port, and the volume of the separating part located farthest on a tank port side is larger than that of the adsorbent layer located farthest on the atmospheric air port side. | 03-06-2014 |
20140054486 | FLOW CONTROL VALVE - Certain embodiments of the disclosure are directed towards flow control valves having a casing having an inlet and an outlet, a valve body housed in the casing where it is movable in an axial direction, and a coil spring biasing the valve body toward the inlet wherein the casing has a measuring portion therein. The valve body has at its outer circumference of a front end a measuring surface to be inserted into the measuring portion. The measuring surface of the valve body has a small-diameter surface portion at a front end side, a large-diameter surface portion at a base end side and a tapering surface portion connecting the small-diameter surface portion with the large-diameter surface portion. The valve body moves depending on pressure differences between an inlet side and an outlet side in order to control a flow rate of a fluid flowing through a space between the measuring-portion of the casing and the measuring surface of the valve body. A spring constant of the coil spring has non-linear characteristics becoming larger in a stepped manner or a continuous manner in accordance with an increase of the compression amount. | 02-27-2014 |
20140044571 | ELECTRIC WATER PUMP - An electric water pump may comprise an impeller rotated by a motor and a casing accommodating the impeller. The impeller may include a plurality of blades. The casing may include a first partial casing, a second partial casing and a tongue portion that extends along the rotation direction of the impeller. The tongue portion may include a first partial tongue portion. formed to be integrated with the first partial casing and a second partial tongue portion formed to be integrated with the second partial casing. A plurality of partial rear edges is disposed at a rear edge of the tongue portion in the rotation direction of the impeller. The plurality of partial rear edges may be positioned to be shifted from each other in the rotation direction of the impeller at a smaller interval than the interval of the blades. | 02-13-2014 |
20140043020 | ROTATOR FOR AN ANGLE SENSOR - A rotator for an angle sensor, includes a rotator body made from a resin material and having a boss portion that is formed in a hollow cylinder shape, a yoke formed in a ring shape and concentrically positioned in the boss portion, and a pair of magnets formed in an arc shape and located to face an inward facing surface of the yoke, wherein the magnets and the yoke are entirely located within the boss portion. | 02-13-2014 |
20140020664 | CONTROL APPARATUS FOR ENGINE - An engine includes an injector, an ignition plug, a supercharger, an electronic throttle device, and an EGR apparatus. An EGR passage has an inlet connected to an exhaust passage downstream of a turbine and an outlet connected to the intake passage upstream from a compressor. A fresh-air introduction passage is arranged to introduce fresh air to a surge tank downstream from the electronic throttle device and a fresh-air control valve is provided to regulate a fresh air amount. When an ECU determines that the engine is under deceleration and under fuel supply, the ECU closes the electronic throttle device to a predetermined opening degree to scavenge EGR gas flowing from the EGR passage and remaining in the intake passage, opens a fresh-air control valve to a predetermined opening degree, and causes the ignition plug to retard an ignition timing. | 01-23-2014 |
20140007960 | FUEL DELIVERY PIPES - A fuel delivery pipe may include a main pipe portion and a plurality of distribution pipe portions. A cap member may close an opening of an open end of the main pipe portion. The cap member may include a cap body, a fusion bonding member fusion-bonded to the closed side end of the main pipe portion, and a connection support portion provided between the fusion bonding member and the cap body. When a load is applied to the cap body while the fusion bonding member is bonded to the open end of the main pipe portion, the connection support portion may mitigate potential stress that may be applied to a fusion bonded region. | 01-09-2014 |
20130342192 | ANGLE SENSOR - An angle sensor includes a sensor rotor formed with a planar coil and a sensor stator placed to face the sensor rotor with a gap therefrom and formed with a planar coil. The planar coil of the sensor stator includes an SIN phase coil and a COS phase coil each having an annular ring shape, and a rotary transformer coil placed radially inside of a region where both the coils are provided. The rotary transformer coil includes two connecting wires to connect to an external circuit, the two connecting wires being arranged to extend across the coils. The two connecting wires are arranged one above the other in their portions that extend across the coils while an insulating film is interposed between the connecting wires. | 12-26-2013 |
20130325299 | CONTROLLER FOR INTERNAL COMBUSTION ENGINE - A controller for internal combustion engine includes a rotation number detecting section to detect engine rotation number and an air-fuel ratio detecting section to detect an air-fuel ratio (A/F) of air-fuel mixture and is configured to perform leaning control of the A/F. The controller further includes a rotation number difference calculating section to calculate a difference between a rotation number variation value of a worst cylinder specified as having largest rotation number variation based on the detected rotation number detected and an average value of rotation number variation values of remaining cylinders other than the worst cylinder; an estimated imbalance rate calculating section to calculate an estimated imbalance rate based on the A/F detected by the air-fuel ratio detecting section; and a lean abnormality detecting section to detect lean imbalance abnormality in a specific cylinder based on the calculated rotation number difference and the calculated estimated imbalance rate. | 12-05-2013 |
20130319383 | EXHAUST GAS RECIRCULATION APPARATUS FOR ENGINE - An EGR apparatus includes a EGR passage for allowing part of exhaust gas discharged from a combustion chamber of an engine to an exhaust passage to flow in an intake passage and recirculate back to the combustion chamber, and an EGR valve provided in the EGR passage to regulate an EGR passage in this passage. The EGR valve includes a valve seat, a valve element to be seatable on the valve seat, and a step motor for driving the valve element to open and close. An electronic control device controls the EGR valve to repeat opening and closing of the valve element between a closing position and a small opening position in order to remove foreign matters adhered to the valve seat or valve element during deceleration fuel cutoff of the engine. | 12-05-2013 |
20130319247 | EVAPORATED FUEL TREATMENT APPARATUS - In an evaporated fuel treatment apparatus, for achieving common use of a casing, having a simple structure, the evaporated fuel treatment apparatus comprising: a casing having one or more adsorption chambers filled with an adsorbent that adsorbs and desorbs evaporated fuel generated in a fuel tank or the like; a tank port; a purge port; and an atmosphere port, and the casing is configured by directly connecting a first member that constitutes one end of the casing, and is provided with at least the tank port and the purge port, a second member that constitutes the other end thereof, and one or more cylindrical members provided between the first member and the second member. | 12-05-2013 |
20130315760 | ELECTRIC PUMP - An electric pump may comprise a rotating body comprising a rotor and an impeller disposed juxtaposed to the rotor in a rotary shaft direction of the rotor, a stator disposed on an outer circumferential side of the rotor, a easing comprising a fluid passage formed along an outer circumference of the impeller, and configured to store the rotating body and the stator and a loading unit configured to constantly apply force on the rotating body during when the electric pump is operating, wherein the force being for reducing displacement of the rotating body caused by a pressure difference in the fluid passage generated when the electric pump is operating between a low pressure side where a pressure of fluid is low and a high pressure side where the pressure of the fluid is high within the fluid passage. | 11-28-2013 |
20130312718 | EXHAUST GAS RECIRCULATION APPARATUS FOR ENGINE - An EGR apparatus includes a EGR passage and an EGR valve provided in the EGR passage to regulate an EGR flow rate in the EGR passage. An ECU closes the EGR valve from an open state prior to start of deceleration of the engine based on engine rotation speed detected by a rotation speed sensor, accelerator opening degree detected by an accelerator sensor, and actual opening degree of the EGR valve. During deceleration of the engine, the ECU obtains a target opening degree of the EGR valve according to the separately detected engine rotation speed and accelerator opening degree from a target opening degree map and starts to close the EGR valve when a difference between an actual opening degree and the target opening degree of the EGR valve exceeds a predetermined value. | 11-28-2013 |
20130312712 | EVAPORATED FUEL TREATMENT APPARATUS - In an evaporated fuel treatment apparatus mounted laterally, in order to effectively utilize adsorbent of an upper portion in an adsorption chamber of the evaporated fuel treatment apparatus, the evaporated fuel treatment apparatus comprises: one or more adsorption chambers filled with the adsorbent that adsorbs and desorbs evaporated fuel generated in a fuel tank; a tank port; a purge port; and an atmosphere port, and in the evaporated fuel treatment apparatus, a first filter is provided in a boundary portion between the adsorption chamber located closest to the tank port and the tank port, and an amount of gas, having flowed in the adsorption chamber from the tank port, passing through an upper portion of the first filter is made larger than that of the gas passing through a lower portion thereof. | 11-28-2013 |
20130312694 | INTAKE ENGINE VALVES - An intake engine valve may have a tapered portion positioned between a valve head and a valve stem tapering from a larger size to a smaller size in the direction of the valve stem. The valve stem may include a small diameter portion positioned between a guide stem portion And a stem end portion on the side of the tapered portion and having a diameter smaller than a diameter or diameters of the guide stem portion and the stem end portion. The guide stem portion may be guided by a valve guide of the engine. | 11-28-2013 |
20130311070 | CONTROLLER FOR INTERNAL COMBUSTION ENGINE - A controller includes an exhaust gas recirculation (EGR) system for performing EGR control, the system including an EGR passage for recirculating exhaust gas per cylinder and an EGR device for controlling a flow rate of the exhaust gas to be recirculated. The controller is arranged to perform internal combustion engine by learning control of an air-fuel ratio (A/F) during the EGR control. This controller includes a blocking determination section including first and second determination sections to determine blocking of the EGR passage in a specified cylinder. The blocking determination section is configured so that the first determination section makes preliminary determination of blocking of the EGR passage and the second determination section makes main determination of blocking of the EGR passage. | 11-21-2013 |
20130284154 | EVAPORATED FUEL TREATING APPARATUS - An evaporated fuel treating apparatus, comprising a passage allowing circulation of fluid inside, a tank port and a purge port at one end of the passage, and an atmospheric port at the other end of the passage, and provided with a plurality of adsorption chambers each filled with granular activated carbon or crushed activated carbon in the passage, and a support member set between a first adsorption chamber located closest to the atmospheric port in the plurality of adsorption chambers and a second adsorption chamber located on the tank port side of the first adsorption chamber in the plurality of adsorption chambers, to space the first and second adsorption chambers apart from each other, and at least a part of the support member can adsorb evaporated fuel components. With this configuration, evaporated fuel components escaping to the outside through the atmospheric port are reduced. | 10-31-2013 |
20130284127 | ENGINE COOLING DEVICE - A cooling device circulates cooling water through an engine main body and a radiator using an electric pump and supplies cool air to the radiator using an electric fan, thereby cooling the engine main body. During a dead soak period after an engine is shut off, a control unit controls the operation states of the electric pump and the electric fan on the basis of cooling water temperature detected by a water temperature sensor, outside air temperature detected by an outside air temperature sensor, and battery voltage. Specifically, when the engine is shut off, if it is determined on the basis of the cooling water temperature and the outside air temperature that the engine is in a high temperature state, the control unit controls the electric pump and the electric fan. | 10-31-2013 |
20130269532 | FUEL VAPOR TREATING APPARATUS - A fuel vapor treating apparatus includes a fuel tank having an inlet pipe and being configured to preserve liquid fuel therein, an adsorbent canister filled with an adsorbent capable of adsorbing fuel vapor, a fuel vapor path connecting the fuel tank to the adsorbent canister, a diaphragm valve having a back pressure chamber and being configured to open and close the fuel vapor path, a circulation path connecting the fuel tank to the inlet pipe for circulating fuel vapor from the fuel tank to the inlet pipe during refueling and being configured to be blocked when, the fuel tank is filled up, and a negative pressure generator connected to the circulation path and the back pressure chamber and configured to generate negative pressure by using a stream of the fuel vapor in the circulation path in order to cause the negative pressure to act on the back pressure chamber of the diaphragm valve. | 10-17-2013 |
20130263741 | TRAP CANISTER FOR ADSORBING FUEL VAPOR - Embodiments of the invention are directed towards a trap canister for adsorbing fuel vapor contained in breakthrough gas discharged from a main adsorbent canister. The main adsorbent canister is connected to a fuel tank has a case defining an adsorption chamber therein and an adsorbent filled in the adsorption chamber. The case has a first end open to the atmosphere and a second end for introducing breakthrough gas into the adsorption chamber. The adsorbent filled in the adsorption chamber adsorbs the fuel vapor contained in the breakthrough gas. The trap canister further has a bypass path for bypassing the adsorption chamber and a valve configured to block the bypass path and to allow for opening during refueling. This prevents the fuel vapor from flowing into the atmosphere during normal operation while also decreasing pressure loss during refueling. | 10-10-2013 |
20130263740 | TRAP CANISTERS - A trap canister for adsorbing fuel vapor contained in break-through gas discharged from a main canister. The trap canister may include a trap case having an adsorption chamber defined therein and containing an adsorption material, so that the break-through gas flows through the adsorption material in a gas flow direction. The adsorption chamber may include a gas introduction side and a gas outlet side located on a downstream side of the gas introduction side along the gas flow direction. The adsorption chamber may have a passage with a cross-sectional area gradually decreasing from the gas introduction side toward the gas outlet side. The trap canister may further include a temperature control device configured to control the temperature of the adsorption material. | 10-10-2013 |
20130257457 | FUEL PROPERTY MEASURING DEVICE - A measuring device for measuring a property of fuel supplied from a fuel tank to a combustion apparatus, may comprise a fuel pump that sucks the fuel in a fuel tank and pumps the fuel toward a combustion apparatus, a fuel discharging portion that discharges the fuel from the fuel pump into the fuel tank, a fuel-measuring storage chamber that receives the fuel discharged from the fuel discharging portion and a pair of electrodes disposed within the fuel-measuring storage chamber so as to measure capacitance. | 10-03-2013 |
20130255642 | SYSTEM FOR MEASURING PROPERTIES OF FUEL - A system configured to measure properties of fuel in a fuel tank includes a first measuring device configured to measure a first property of the fuel, a second measuring device configured to measure a second property of the fuel, and a processor connected to the first and second measuring devices. The processor is capable of communicating with a control device that controls an internal combustion engine to which the fuel in the fuel tank is supplied. The processor outputs first signals, a second signal, or both the first and second signals, the first signals indicating a first result measured by the first measuring device and a second result measured by the second measuring device, and the second signal being obtained by processing the first and second results. | 10-03-2013 |
20130239931 | FUEL TANK AND METHOD FOR PRODUCING SAME - An object of the invention is to increase efficiency in an operation of joining an upper shell and a lower shell and to enhance reliability of a fuel tank against leakage. | 09-19-2013 |
20130239677 | SLIDING LIQUID LEVEL SENSOR - Embodiments of the invention are directed towards a sliding liquid level sensor which is mounted in a fuel tank of a vehicle for detecting a remaining amount of a liquid fuel in the tank. The liquid level sensor has a float, a plurality of electrodes, and a sliding contact point configured to slide on the electrodes in accordance with a displacement of the float. The electrodes preferably contain 100 parts by weight of a silver-palladium alloy and preferably 3-20 parts by weight of glass. The silver-palladium alloy preferably contains 20-60% by weight of silver and preferably 80-40% by weight of palladium. The sliding contact point is made from a palladium-nickel alloy that preferably contains 70-90% by weight of palladium and preferably 30-10% by weight of nickel. | 09-19-2013 |
20130233733 | FUEL TANK AND METHOD OF MANUFACTURING THE SAME - The present invention is to enable an adsorbent disposed in the vicinity of a tank port to be appropriately subjected to a purge when the adsorbent in a canister is subjected to the purge by air, thereby eliminating a non-desorption region of fuel vapor. In a fuel tank according to the present invention, a tank port ( | 09-12-2013 |
20130233707 | SENSOR AND SENSOR SYSTEM - A sensor for detecting the property of the liquid includes a substrate, a first pair of electrodes disposed on an upper surface of the substrate, and a second pair of electrodes disposed on a lower surface of the substrate. A capacitance of the first pair of electrodes and a capacitance of the second pair of electrodes mutually change correlatively to the same property of the liquid. | 09-12-2013 |
20130233286 | FUEL TANK - The present invention enables a canister in a fuel tank with the canister to be separately subjected to a product inspection and enables the canister to be replaced. | 09-12-2013 |
20130220999 | FUEL TANK - The present invention is to enhance the reliability of a fuel tank by integrating sealing points of a fuel tank body into one point, and to achieve the reduction in cost. | 08-29-2013 |
20130206117 | EXHAUST GAS RECIRCULATION APPARATUS FOR ENGINE - An exhaust gas recirculation apparatus for engine includes an EGR passage, a first EGR valve and a second EGR valve provided in series in the EGR passage to regulate an EGR flow rate in the EGR passage. The first EGR valve is configured as a poppet valve and is configured to open in a range of opening degree from full open to full close. The second EGR valve has a maximum opening degree restricted to a predetermined small opening degree smaller than full open. The second EGR valve is configured to open in a range of opening degree from the predetermined small opening degree to full close and to allow the first EGR valve to provide a maximum exhaust flow rate when the second EGR valve is held at the predetermined small opening degree. | 08-15-2013 |
20130202929 | BATTERY MODULE | 08-08-2013 |
20130200884 | POSITION SENSOR - A position sensor includes: a stator including an excitation coil and a detection coil each formed in planar shape; and a mover placed to face the stator and provided with a plurality of regions having different magnetic permeability and being arranged periodically in a moving direction of the mover. The excitation coil includes a first excitation coil pattern and a second excitation coil pattern formed adjacent to the first excitation coil pattern. The detection coil includes a detection coil pattern placed between the first excitation coil pattern and the second excitation coil pattern in the moving direction of the mover. The second excitation coil pattern is wound to flow an excitation current in an opposite direction to the first excitation coil pattern. | 08-08-2013 |
20130187487 | BRUSHLESS MOTOR - A brushless motor may comprise a rotor comprising a shaft, a back yoke fixed on the shaft, a permanent magnet disposed at an outer circumference of the back yoke and first and second resin portions. The first resin portion may be formed at one ends of the back yoke and the permanent magnet and the second resin portion may be formed at other ends. The first and second resin portions may be fixed the back yoke and the permanent magnet. A communication hole communicating one end side and another end side in the shaft axis direction may be formed through the back yoke or between the shaft and the back yoke. A third resin portion connecting with the first and the second resin portions may be formed within the communication hole. The first, second and third resin portions may be formed integrally. | 07-25-2013 |
20130186375 | TRAP CANISTER CAPTURING FUEL VAPOR - A trap canister is configured to capture fuel vapor contained in breakthrough gas discharged from an adsorbent canister. The trap canister has a housing defining an adsorption chamber therein, a breathable partition member disposed in the housing and dividing the adsorption chamber into a first chamber and a second chamber, an adsorbent filled in the first chamber and the second chamber, and a latent heal storage material tilled in the first chamber in a mixed manner with the adsorbent. The first chamber is configured to receive breakthrough gas, while the second chamber is configured to communicate with the atmosphere. The first chamber has a cross-sectional area larger than that of the second chamber. | 07-25-2013 |
20130183207 | Treatment Apparatus for Evaporated Fuel - A treatment apparatus for evaporated fuel including tank port, a purge port, an atmosphere port, a channel communicating the tank port or the purge port and the atmosphere port, and plural adsorption chambers having adsorbent therein, which adsorbing and desorbing a fuel component of evaporated fuel, wherein the adsorption chamber closest to the atmosphere port has a major diameter portion filled with the adsorbent over all a cross section of the charmed a projecting portion projecting from the major diameter portion toward the atmosphere port and filled with the adsorbent, and a space portion between the projecting portion and an inner wall of the channel and not filled with the adsorbent, and end surfaces of the major diameter portion and the projecting portion on the atmosphere port side are breathable so as to control temperature drop in activated carbon and to thereby enhance bleed emission performance. | 07-18-2013 |
20130183179 | MOTOR AND ELECTRIC PUMP - A motor may comprise a rotor and a stator. A first core of the stator may comprise three pieces of first partial cores and a first connecting portion connecting the first partial cores adjacent to one another. The first partial core may comprise a tooth part disposed at a front edge portion and a contacting part disposed at a rear edge portion. The contacting part may contact the adjacent first partial core. The first core may be formed such that a state of the contacting parts changes from a separated state in which the contacting parts are separated from each other to a contacting state in which the contacting parts of the adjacent first partial cores are contacting each other. | 07-18-2013 |
20130166175 | SENSOR AND CONTROL DEVICE - A sensor may be configured to be disposed in a fuel tank. The sensor may comprise a density detecting unit and a temperature detecting unit. The density detecting unit may be configured to detect a density of a specific substance included in fuel in the fuel tank. The temperature detecting unit may be configured to be located below the density detecting unit and detect a temperature of the fuel. | 06-27-2013 |
20130160651 | EVAPORATED FUEL TREATMENT APPARATUS - In an evaporated fuel treatment apparatus, for reducing blow-by of an evaporated fuel component to the outside, the evaporated fuel treatment apparatus includes at least one adsorption chamber filled with a first adsorbent and a second adsorbent that adsorb and desorb a fuel component of evaporated fuel, and the first adsorbent has a higher pore volume than the second adsorbent with respect to effective pores that effectively adsorb and desorb a low-boiling fuel component, and the first adsorbent has a lower pore volume than the second adsorbent with respect to pores smaller than the effective pores and having higher adsorbability and lower desorbability on butane than the effective pores. | 06-27-2013 |
20130160531 | SENSOR DEVICE - A sensor device may be configured to detect a level of liquid, a concentration of a specific substance included in the liquid, and a temperature of the liquid. The sensor device may comprise a substrate, a level electrode configured to be disposed on the substrate and detect the level, an electrode for liquid quality configured to be disposed on the substrate and detect the concentration, a temperature electrode configured to be disposed on the substrate and detect the temperature, and a reference electrode configured to be disposed on the substrate and maintain a reference electric potential. The reference electrode may be disposed at least between two of the level electrode, the electrode for liquid quality and the temperature electrode. | 06-27-2013 |
20130156618 | ELECTRIC PUMP - In an electric pump, a vortex chamber may be formed by a clearance between an outer circumferential surface of an impeller and an inner circumferential surface of a casing. A low rigidity part may be provided to a supporting portion or a shaft, or to both of them. The low rigidity part may be formed such that while the electric pump operates, a center point of the shaft in a top view of the shaft moves along a specific line which is parallel to a tangent line of the outer circumferential surface of the impeller at the specific position and passes through the center point of the shaft while the electric pump does not operate, or moves to one of two areas divided by the specific line. The one of the two areas may he opposite to the other of the two areas that includes the specific position. | 06-20-2013 |
20130136636 | BRUSHLESS MOTOR AND ELECTRIC PUMP - A brushless motor includes a rotor and a stator. The stator includes a first core and a second core opposing the first core, between which the rotor is disposed. Each of the first core and the second core includes U-phase teeth, V-phase teeth, and V-phase teeth, each of which is extending parallel to one another and having a tip end opposing the rotor. A tooth located at one end of the first core and a tooth located at another end of the second core are connected to one another by a first nonmagnetic member, and a tooth located at another end of the first core and a tooth located at one end of the second core are connected to one another by a second nonmagnetic member. | 05-30-2013 |
20130136635 | MOTOR AND ELECTRIC PUMP - A stator of a motor may comprise a first core, a second core and a resin layer. Each of the first core and the second core may comprise a yoke and three pieces of teeth configured to be disposed on the yoke. The resin layer may comprise a first void configured to contact a first opposing surface, opposing the second core, of the first core and contact a second opposing surface, opposing the first core, of the second core and a second void configured to contact a first part, extending parallel to a direction along which the first core opposes the second core, of a surface of the first core and contact a second part, extending parallel to the direction along which the first core opposes the second core, of a surface of the second core. | 05-30-2013 |
20130133629 | CONTROL OF THE TEMPERATURE OF ADSORBENT MATERIALS IN A CANISTER - A method for cooling an adsorbent material filled in a housing of an adsorbent-canister in a vehicle. The vehicle preferably has a cooler and a fuel door. The method may include the steps of detecting an opened or closed state of the fuel door, and when the fuel door is open, starting the cooler in order to cool the adsorbent material. | 05-30-2013 |
20130125528 | INTERNAL COMBUSTION ENGINE SYSTEM AND METHOD FOR CONTROLLING INTERNAL COMBUSTION ENGINE SYSTEM - An internal combustion engine system having a fuel tank for storing fuel to be supplied to an engine and an exhaust passage in which exhaust gas is to be exhausted from the engine, wherein the internal combustion engine system includes: a closing member to close the exhaust passage; an exhaust gas introduction passage connecting the exhaust passage and the fuel tank; and a controller configured to close the exhaust passage by the closing member after the engine is stopped to store the exhaust gas in the exhaust passage and to introduce the exhaust gas stored in the exhaust passage into the fuel tank via the exhaust gas introduction passage. | 05-23-2013 |
20130119799 | FUEL PUMP - A fuel pump may be configured to suck fuel into a case and discharge the fuel outside the case. The fuel pump may comprise a rotor, a bearing and a reference terminal. The rotor may be configured to be disposed within the case and include a shaft The bearing may be configured to be disposed within the ease, be made from metal and support the shaft rotatably. The reference terminal may be configured to be maintained at a specific electric potential. The bearing may be configured to electrically connect with the reference terminal. The specific electric potential may be lower than an electric potential of the bearing. | 05-16-2013 |
20130112178 | EXHAUST GAS RECIRCULATION APPARATUS - In an EGR valve, an actuator includes a coil, a rotor body to be driven to rotate when the coil is energized with electric current, and a converting mechanism to convert rotational movement of the rotor body into stroke movement of the rod to bring a valve into or out of contact with a seat. The rod includes a stopper that will contact with a protrusion of the rotor body when the valve is placed in a full closed state. An end face of the stopper and an end face of the protrusion are slanted with respect to a stroke direction of stroke movement of the rod. | 05-09-2013 |
20130105009 | FLOW CONTROL VALVE | 05-02-2013 |
20130104649 | SENSOR DEVICE | 05-02-2013 |
20130094982 | BRUSHLESS MOTOR AND ELECTRIC PUMP - A brushless motor comprises a rotor and a stator comprising a plurality of core plates laminated on one another. The core plates include a plurality of teeth portions. The plurality of core plates includes a first core plate and a second core plate, a combination of magnetic resistances of the teeth portions of the first core plate being adjusted at a first condition, and a combination of magnetic resistances of the teeth portions of the second core plate being adjusted at a second condition. Magnetic resistances of magnetic paths formed by the plurality of laminated teeth portions are adjusted to be same by adjusting a ratio of a number of the first core plates to a number of the second core plates. | 04-18-2013 |
20130089444 | BRUSHLESS MOTOR AND ELECTRIC PUMP - A brushless motor includes a rotor and a stator. The stator includes yokes and a plurality of teeth. Base ends of the teeth are connected to the yokes, and tip ends of the teeth oppose an outside surface of the rotor with an interval in between. The plurality of teeth include a pair of first teeth connected to both ends of the yokes and second teeth connected to centers of the yokes. The first teeth are connected to the yokes in a first direction, and the second teeth are connected to the yokes in a second direction which is different from the first direction. | 04-11-2013 |
20130087222 | FLOW CONTROL VALVES - A flow control valve may include a case and a valve body axially movably disposed within a fluid passage defined in the case. The valve body may have an outer circumferential surface with a flow control surface. The valve body may further include a flange portion positioned on an upstream side of the flow control surface. The flange portion may include a sliding surface and a reference surface. The sliding surface may slidably contact a passage wall surface of the fluid passage. The reference surface may serve as a reference when performing configuration measurement of the flow control surface. The reference surface may extend within a first circumferential range about the axis of the valve body, and the flow control surface may extend within a second circumferential range about the axis of the valve body. The first circumferential range and the second circumferential range may at least partly overlap with each other. | 04-11-2013 |
20130063137 | ROTATIONAL ANGLE DETECTION DEVICES - A rotational angle detection device may include a sensor wiring member and a motor wiring member. Each of the sensor wiring member and the motor wiring member includes a terminal body section and a connector section that are formed separately from each other and are electrically connected to each other via a connection structure. | 03-14-2013 |
20130055899 | FUEL VAPOR PROCESSING APPARATUS - A fuel vapor processing apparatus may include a latent heat storage material that releases latent heat during desorption of fuel vapor from an adsorption material. | 03-07-2013 |
20130037006 | EVAPORATED FUEL TREATING APPARATUS - An evaporated fuel treating apparatus reduces blow-through of evaporated fuel components from an atmosphere port to an outside and has a fluid circulation passage which includes at one end side a first chamber containing granulated carbon or fractured carbon, and heat storage material and at another end side a second chamber containing granulated carbon or fractured carbon and not having the heat storage material. A delay diffusion chamber is disposed between the first chamber and the second chamber, which does not have activated carbon and the heat storage material therein. An adsorption amount of evaporated fuel of granulated or fractured carbon in the second chamber is set to be not less than 2 vol % and not more than 8 vol % of a total adsorption amount of evaporated fuel of granulated or fractured carbon, and a volume of the delay diffusion chamber is larger than that of the second chamber. | 02-14-2013 |
20130025460 | FUEL VAPOR PROCESSING APPARATUS - A fuel vapor processing apparatus may include a case defining an adsorption chamber containing adsorbent, so that fuel vapor introduced into the adsorption chamber is adsorbed by the adsorbent and fuel vapor is desorbed from the adsorbent by air flowing through the adsorption chamber. A desorption promoting unit may include a retaining frame and a desorption promoter configured to promote desorption of the fuel vapor from the adsorbent. The desorption promoter may be fitted into the retaining frame. The retaining frame may be fitted into the adsorption chamber, so that the desorption promoter does not directly contact an inner wall of the case defining the adsorption chamber. | 01-31-2013 |
20130019963 | FUEL CUT-OFF VALVE ASSEMBLIES - A fuel cut-off valve assembly may include a housing disposed within a fuel tank and defining therein a float chamber communicating with a space defined in the fuel tank. The housing has a fuel vapor outlet hole, so that fuel vapor can flow from within the float chamber to a fuel vapor processing device. A float valve may be received within the float chamber so as to be vertically movable for opening and closing the fuel vapor outlet hole in response to change in a level of fuel within the fuel tank. The float valve may have a valve body and a buoyancy center positioned at a level higher than a central position of the valve body with respect to the height of the valve body. | 01-24-2013 |
20120325798 | HEATING DEVICES AND FUEL VAPOR PROCESSING APPARATUS USING THE HEATING DEVICES - A heating device may include an electric heating element configured to generate heat, a heat radiation element, and an electrical insulation member interposed between the electric heating element and the heat radiation element. The electrical insulation member may be bonded to both of the electric heating element and the heat radiation element. | 12-27-2012 |
20120325183 | EGR VALVE - A lip seal is placed between a housing and a valve shaft and adjacent to a bearing of the shaft. A deposit-guard plug is placed between the housing and the shaft and adjacent to the lip seal. A first end of the lip seal is placed adjacent to a first end of the bearing. A first end of the plug is placed adjacent to a second end and a lip portion of the lip seal. A second end of the plug is placed to face a passage. A first distance from the first end of the bearing to the leading end of the lip portion of the lip seal and a second distance from the second end of the plug to the leading end of the lip portion of the lip seal are set to be longer than a maximum stroke of the shaft in stroke movement. | 12-27-2012 |
20120312281 | EVAPORATED FUEL TREATMENT APPARATUS - An evaporated fuel treatment apparatus is mounted in a vehicle having an engine, a fuel tank storing fuel for the engine, and a battery, the evaporated fuel treatment apparatus adsorbing evaporated fuel in the fuel tank on an adsorbent in a canister container, desorbing the evaporated fuel adsorbed on the adsorbent therefrom during engine running, and directing the evaporated fuel to an intake passage of the engine. The adsorbent in the canister is heated by heat generated by the battery. | 12-13-2012 |
20120304865 | EVAPORATED FUEL TREATING DEVICE - An evaporated fuel treating device lowers the blow-by volume of evaporated fuel emitted to the atmosphere via a casing having an atmospheric port. The casing has in series a first adsorbent chamber housing an adsorbent material, a space chamber not housing an adsorbent material and a second adsorbent chamber housing an adsorbent material. Each of the chambers is positioned beside an adjacent chamber thereof. The first chamber is disposed closest to the atmospheric port among the adsorbent chambers. An end part of the space chamber on a side of the first chamber has a first partition wall having an opening part with a plurality of first openings provided on a top side of the first partition wall. A current plate has one end positioned between the adjacent first openings and a surface and a rear face of the current plate are disposed along the top and bottom direction. | 12-06-2012 |
20120274185 | MOTOR ROTOR AND MOTOR - A motor with rotation detector includes a rotary shaft, a core part placed around the shaft and provided with axially extending through holes, permanent magnets individually mounted in the through holes, a pair of end plates provided at both ends of the core part to close openings of the through holes, and a motor stator including a coil. The end plates are made of a non-magnetic substance. One of the end plates is provided, on its outer surface in an axial direction, with recesses and protrusions for angle detection alternately arranged in a circumferential direction. A sensor stator with an excitation coil to which a high frequency signal is inputted is located to face the recesses and protrusions of the outer surface of the end plate. | 11-01-2012 |
20120260893 | FUEL VAPOR PROCESSING DEVICES - A fuel vapor processing device may include a casing having an adsorption chamber defined therein, an adsorption material disposed within the adsorption chamber, a heating device capable of heating the adsorption material, and a passage member communicating between the adsorption chamber and the atmosphere. The passage member defines a flow space facing to an outer circumferential surface of the casing, so that heat can be transmitted between the adsorption chamber and the flow space. | 10-18-2012 |
20120247438 | BLOWBY GAS RETURNING APPARATUS FOR ENGINE WITH SUPERCHARGER - An upstream side and a downstream side of a supercharger in the intake passage are connected through a bypass passage in which an ejector is provided. An outlet of a first blowby gas returning passage is connected to the bypass passage through the ejector. An outlet of a second blowby gas bypass passage is connected to the intake passage downstream of a throttle valve. An inlet of the first blowby gas returning passage and an inlet of the second blowby gas returning passage are placed adjacent to each other in a head cover. A check valve is provided in the first blowby gas returning passage. | 10-04-2012 |
20120234301 | EVAPORATED FUEL TREATING DEVICE - An evaporated fuel treating device includes a chamber, closest to an atmospheric port, divided into first, second, and third compartments by a partition member having a peripheral wall and a separating wall. The first compartment has an adsorbent layer and one end in communication with the third compartment and another end in communication with a tank port. The second compartment communicates with the first compartment through a first communication portion formed at one end of the peripheral wall. One end of the second compartment communicates with the third compartment through a second communication portion provided in the separating wall, while the other end thereof is closed. The airflow resistance of a second filter covering one end of the peripheral wall and one end of the separating wall is higher than the airflow resistance of a first filter covering one end of the adsorbent layer. | 09-20-2012 |
20120222656 | FUEL VAPOR PROCESSING DEVICES - One aspect according to the present teachings includes a fuel vapor processing device including a housing having a first port for introduction of fuel vapor, a second port for introduction of negative pressure, and a third port communicating with an atmosphere. An adsorption material is disposed within the housing. In a desorption mode, fuel vapor desorbed by the adsorption material is desorbed from the adsorption material as air flows into the housing via the third port and flows out of the second port. A plurality of heaters are disposed within the housing and are arranged along a path of flow of air from the third port to the second port in the adsorption mode. A controller controls the heaters such that the heaters start to heat the adsorption material in order of the air flow direction from the third port to the second port. The controller preferably also terminates heating of the adsorption material in the same manner. | 09-06-2012 |
20120200286 | RESOLVER - A SIN signal detection coil is divided into two parts in a circumferential direction and further into two parts in a radial direction so that a SIN-coil first part and a SIN-coil second part are arranged on an outer circumferential side and a SIN-coil third part and a SIN-coil fourth part are arranged on an inner circumferential side. The SIN-coil first part and third part are placed in the same position in the circumferential direction and to face each other in a radial direction. The SIN-coil second part and fourth part are placed in the same position in the circumferential direction and to face each other in the radial direction. The SIN-coil first part and fourth part are placed in the first coil layer. The SIN-coil second part and third part are placed in the second coil layer. | 08-09-2012 |
20120200202 | DETECTION STATOR, ROTATION DETECTOR AND MOUNTING STRUCTURE THEREOF - A motor includes a rotary shaft and a motor housing internally housing the rotary shaft. The motor housing is provided with a mounting hole in a position corresponding to an end of the rotary shaft. A detection rotor is fixed to the end of the rotary shaft. A detection stator includes a detection part made of resin into a plate-like shape having a surface on which a planar coil is placed, an outer peripheral wall axially extending from an outer circumferential edge of the detection part, and a flange radially extending from the outer peripheral wall. The detection stator is placed so that a surface of the detection part faces the detection rotor and the surface of the detection part faces to the inside of the motor housing in the mounting hole, and fixed to outside of the motor housing with a screw to the flange. | 08-09-2012 |
20120186563 | CANISTERS - A canister has a canister case, an adsorbent chamber defined in the canister case, and an adsorbent disposed in the adsorbent chamber. The adsorbent can adsorb fuel vapor as the fuel vapor flows through the adsorbent chamber in a first direction. On the other hand, the adsorbent allows desorption of fuel vapor as air flows through the adsorbent in a second direction opposite to the first direction. The adsorbent chamber includes a first adsorbent chamber and a second absorbent chamber communicating with each other. The first adsorbent chamber is disposed on an upstream side of the second adsorbent chamber with respect to the first direction. The adsorbent includes a first adsorbent disposed in the first adsorbent chamber and a second adsorbent disposed in the second adsorbent chamber. A desorption promoting device is disposed in the second adsorbent chamber and can promote desorption of fuel vapor from the second adsorbent. | 07-26-2012 |
20120176123 | POSITION SENSOR - A position sensor is configured such that a rotor pattern formed on a rotor in a position facing a stator includes non-magnetic conductive parts cyclically formed, a stator coil includes an excitation coil and a detection coil, which are wound in the same direction, and the width of each coil is equal to one cycle of the rotor pattern. | 07-12-2012 |
20120156057 | FUEL SUPPLY APPARATUS - A fuel supply apparatus includes a fuel pump having an electrically driven motor. A controller is connected to the motor of the first fuel pump and is capable of determining an estimated pressure based on a value of current supplied to the motor and a rotational speed of the motor. The controller controls the motor so that the estimated pressure becomes relatively equal to a target pressure. | 06-21-2012 |
20120156056 | PUMP UNITS - A pump unit includes a pump, a motor configured to drive the pump, a control device communicating with the motor and a pressure detection device configured to detect a pressure of a fluid discharged from the pump. The control device is configured to control the motor, so that a pressure detected by the pressure detection device becomes relatively equal to a target pressure. The control device is further configured to determine an estimated pressure of the fluid discharged from the pump. The control device determines whether or not an abnormality occurs based at least one of the following: a detected pressure, a difference between the target pressure and the detected pressure and/or a difference between the detected pressure and the estimated pressure. | 06-21-2012 |
20120145133 | FUEL VAPOR PROCESSING SYSTEMS - A fuel vapor processing system includes a canister, a tank passage communicating between the canister and the fuel tank, and a purge passage communicating between the canister and the intake air passage. Fuel vapor adsorbed by the canister can be desorbed and purged into the intake air passage via the purge passage due to a negative pressure produced in the intake air passage. A desorption promoting device can promote desorption of fuel vapor from the canister. A control unit controls the desorption device, so that the desorption promoting device promotes desorption of fuel vapor from the canister during desorption through the purge passage due to the negative pressure. | 06-14-2012 |
20120125200 | APPARATUS HAVING A CANISTER AND A COMPONENT ASSOCIATED WITH THE CANISTER - An apparatus including a canister and an accessory component associated with the canister. The canister may be filled with an adsorption material for adsorbing fuel vapor generated within a fuel tank. A communicating pipe extends downwardly from a housing of the accessory component for communication with the canister. An engaging protrusion is provided on an outer peripheral surface of the housing. An outer peripheral portion of an upper portion of the canister includes a wall portion for engagement with the engaging protrusion. | 05-24-2012 |
20120085325 | FUEL VAPOR RECOVERY SYSTEM - A fuel vapor recovery system has a fuel tank, an adsorbent canister, a separator capable of separating fuel vapor from air, and a negative pressure supplier applying negative pressure to the adsorbent canister in order to remove the fuel vapor from the adsorbent canister. The separator has a housing and a separation membrane. The separation membrane divides an inner space of the housing into a receiving chamber and a permeation chamber and is configured to allow the fuel vapor to pass therethrough. The separator is connected with the fuel tank such that the fuel tank is fluidly connected with the receiving chamber. The negative pressure supplier is fluidly connected with the adsorbent canister via the permeation chamber. When the negative pressure supplier applies negative pressure to the adsorbent canister, purge gas flows from the adsorbent canister into the fuel tank via the permeation chamber. | 04-12-2012 |
20120024158 | FUEL VAPOR TREATING APPARATUSES HAVING A HIGH THERMAL CONDUCTIVE HONEYCOMB CORE - An adsorbent canister has a housing defining an adsorption chamber therein, an adsorbent filled in the adsorption chamber, and a honeycomb core. The honeycomb core is made from a material having a higher thermal conductivity than the adsorbent, defines therein a plurality of cells passing through the honeycomb core and is disposed in the adsorption chamber. The adsorbent canister can further have a heater for heating the honeycomb core or the honeycomb core can be made from a material, which produce heat when current is applied. | 02-02-2012 |
20120012474 | SHAPED HEAT STORAGE MATERIALS INCLUDING HEAT TRANSFER MEMBERS - A shaped heat storage material has a shaped body composed of a binder and heat storage capsules containing a heat storage material therein. And, the shaped body has at least one of a projection, a depressed portion and a hollow structure defining a hollow space therein. | 01-19-2012 |
20120007592 | ROTATION POSITION SENSOR - A rotational position sensor includes a rotor substrate and a stator substrate placed to face each other to detect rotational displacement of the rotor substrate. The rotor substrate is formed with an excitation coil in a meandering pattern on an outer circumferential side and a rotor-side rotary transformer on an inner circumferential side. The stator substrate is formed with four detection coils in a meandering pattern on an outer circumferential side and a stator-side rotary transformer on an inner circumferential side. The four detection coils are arranged in a circumferential direction without overlapping each other. The detection coils are displaced from each other by 360°/8. The rotational position sensor includes a high frequency excitation circuit for applying a high frequency signal to the excitation coil through the rotor-side rotary transformer and the rotor-side rotary transformer to excite the excitation coil. | 01-12-2012 |
20120006504 | SHAPED HEAT STORAGE MATERIALS - A shaped heat storage material has a shaped body composed of a binder and heat storage capsules containing a heat storage material therein. And, the shaped body has at least one of a projection, a depressed portion and a hollow structure defining a hollow space therein. | 01-12-2012 |
20110315241 | FUEL CUTOFF VALVES - A fuel cutoff valve has a housing defining therein a float chamber and a float disposed in the float chamber. The housing defines a connection passage positioned above the float chamber and fluidly connecting the float chamber with outside of the housing and a hole positioned below the fluid chamber fluidly connecting the float chamber with outside of the housing. The float has a valve part that is configured to close the connection passage and defines therein a first passage passing through the float in a vertical direction and a second passage extending from a part of the first passage to an outer surface of the float in a substantial horizontal direction. | 12-29-2011 |
20110308302 | METHODS FOR CHECKING LEAKS FROM FUEL VAPOR TREATING APPARATUSES - A method for detecting leak from a fuel vapor treating apparatus defining a first area including a fuel tank and a second area including an adsorbent canister has hermetically closing the fist area, measuring internal pressure of the first area comparing an absolute value of differential pressure between the internal pressure of the first area and the atmospheric pressure with a predetermined value, measuring the internal pressure of the first area in a case that the absolute value is equal to or higher than the predetermined value in order to check for leaks from the first area based on changes in the internal pressure of the first area, fluidly communicating the first area with the second area in order to equilibrate internal pressures of the first area and the second area, hermetically closing the second area, and measuring the internal pressure of the second area in order to check for leaks from the second area based on changes in the internal pressure of the second area. | 12-22-2011 |
20110297253 | PRESSURE REGULATING DEVICE - A pressure regulating device that regulates a pressure of a fuel, including a housing that includes a fuel introduction passage into which the fuel to be supplied into a fuel consuming unit is introduced and a fuel discharge passage from which the fuel is discharged, wherein the fuel discharge passage includes a plurality of discharge passage portions; a pressure regulating provided so as to partition the housing, and that communicates the fuel introduction passage with the fuel discharge passage and cuts off the fuel introduction passage from the fuel discharge passage, according to a pressure of the fuel in the housing; an impelling mechanism that impels the pressure regulating member in a direction of cutting off the fuel introduction passage from the fuel discharge passage; and a discharge restricting mechanism, provided in the fuel discharge passage, that selectively restricts discharge of the fuel from the discharge passage portions. | 12-08-2011 |
20110297126 | FLUID PRESSURE REGULATING DEVICE AND FUEL SUPPLY SYSTEM USING SAME - A fluid pressure regulating device is i) provided with a pressure regulating member that forms a pressure regulating chamber inside a housing having introduction side and discharge side fuel passages, and communicates these passages according to introduced fuel pressure, and ii) is able to regulate the fuel pressure introduced into a fuel passage to a set pressure. The housing is provided with outer and inner annular valve seat portions that separate the fuel passages inside the pressure regulating chamber, and form another fuel passage inside the pressure regulating chamber. Different clearances are set between the pressure regulating member, and the outer annular valve seat portion and the inner annular valve seat portion, such that when the pressure regulating member abuts against one of the valve seat portions, a small gap is formed between the other valve seat portion and the pressure regulating member. | 12-08-2011 |
20110296997 | VALVES CAPABLE OF CONTROLLING VALVE-OPENING AREA - A valve includes a valve housing defining therein a fluid passage composed of a first passage and a second passage, a first valve member configured to open and close the fluid passage, a first biasing member pressing the first valve member in a first valve-closing direction along a flow direction from the first passage to the second passage, a second valve member configured to open and close the fluid passage, a second biasing member pressing the second valve member in a second valve-closing direction along the flow direction from the first passage to the second passage, an electromagnetic driving member having an pressing member opening the first valve member and the second valve member in stages, a third valve member configured to open and close the fluid passage, and a third biasing member pressing the third valve member in a third valve-closing direction along a flow direction from the second passage to the first passage. The third valve member is configured to open the fluid passage when internal pressure of the first passage is higher than internal pressure of the second passage by a predetermined value. | 12-08-2011 |
20110290117 | ADSORBENT CANISTERS - An adsorbent canister includes a casing defining a first adsorption chamber, a second adsorption chamber and a diffusion chamber therein, and an adsorbent capable of adsorbing the fuel vapor and filled in the first adsorption chamber and the second adsorption chamber. The first adsorption chamber and the second adsorption chamber communicate with each other via the diffusion chamber. The casing has on a side wall thereof a fuel introducing port configured to introduce fuel vapor into the first adsorption chamber and an air communicating port configured to introduce air into the second adsorption chamber. The diffusion chamber has at least one of a first diffusion chamber and a second diffusion chamber. The first adsorption chamber is positioned above the first adsorption chamber and extends over the entire length of the first adsorption chamber. The second diffusion chamber is positioned below the second adsorption chamber and extends over the entire length of the second adsorption chamber. | 12-01-2011 |
20110283973 | FUEL DELIVERY PIPE - A fuel delivery pipe made of resin, comprises: a pipe body internally formed with a fuel passage; an inlet pipe for introducing fuel into the pipe body; a plurality of injector attaching parts for distributing the fuel introduced into the pipe body to a plurality of injectors through the fuel passage; and communication passages for communicating the fuel passage with the injector attaching parts, wherein the pipe body includes an absorbing part formed in a flat planar shape extending in a longitudinal direction of the pipe body, and the communication passages are placed so that respective centers are offset to the absorbing part side than a center of the pipe body. | 11-24-2011 |
20110283970 | THROTTLE APPARATUS FOR INTERNAL COMBUSTION ENGINE - A full close position limiting member is adapted to be engaged with a valve gear when a valve is driven in a valve closing direction and reaches a full close position of the valve. An intermediate position limiting member is adapted to be engaged with a return spring when the valve is placed on a side of a predetermined intermediate position where a full close position of the valve is located. The intermediate position limiting member receives an intermediate reaction force from the return spring through engagement with the return spring, and the full close position limiting member receives a full close side engaging force from the valve gear. The full close side engaging force and the intermediate reaction force are generally directed in a predetermined direction. | 11-24-2011 |
20110278482 | FUEL SHUT-OFF VALVES - A fuel shut-off valve includes a casing defining therein a valve chamber communicating between inside and outside of a fuel tank. A bottom wall member defines a bottom of the valve chamber and has communication holes formed therein, so that the valve chamber communicates with the inside of the fuel tank via the communication holes. A valve mechanism is disposed within the valve chamber and capable of preventing fuel from flowing from the valve chamber to the outside of the fuel tank depending of a fuel level within the fuel tank. A flow area of each of the communication holes decreases in an outflow direction of the fuel from the valve chamber to the inside of the fuel tank. | 11-17-2011 |
20110265766 | FUEL DELIVERY PIPE - A fuel delivery pipe made of resin, comprises: a pipe body internally formed with a fuel passage; an inlet pipe for introducing fuel into the pipe body; and a plurality of injector attaching parts for distributing the fuel introduced into the pipe body to a plurality of injectors through the fuel passage, the inlet pipe having an internal diameter smaller than an internal diameter of the pipe body and being integrally formed at one end of the pipe body through a joint portion provided with a slant surface with a diameter gradually decreasing toward a root of the inlet pipe. | 11-03-2011 |
20110260719 | ROTATIONAL ANGLE SENSORS AND MANUFACTURE METHODS THEREOF - A rotational angle sensor has a molded body made of a resin and having a substantial cylinder shape with a center axis, and a conversion IC buried in the molded body and having a magnetic sensing portion, a computing portion and leads connecting the magnetic sensing portion with the computing portion. The magnetic sensing portion is disposed nearly perpendicular to the center axis of the molded body. The leads are bent such that the computing portion is disposed parallel to the center axis of the molded body and that a connection between one of the lead and the computing portion is positioned closer to the center axis of the molded body than a radially outer end of the lead. | 10-27-2011 |
20110247595 | FUEL VAPOR PROCESSING APPARATUS - According to the present teaching, a fuel vapor processing apparatus includes a fuel tank, a canister capable of adsorbing fuel vapor produced in the fuel tank, a fuel pump disposed within the fuel tank, a fuel recovery device configured to recover the fuel vapor from the canister into the fuel tank, and a control device configured to stop recovery of the fuel vapor by the fuel recovery device based on at least one of parameters representing the amount of the fuel vapor remaining within the canister. | 10-13-2011 |
20110240490 | CANISTERS - A canister for trapping a fuel vapor vaporized in a fuel tank has a casing defining an adsorption chamber therein, an adsorbent capable of adsorbing the fuel vapor and filled in the adsorption chamber and a flow regulation plate disposed in the casing. The casing has a fuel introducing port configured to introduce the fuel vapor from the fuel tank into the adsorption chamber, and an air communicating port communicating the adsorption chamber with the atmosphere. The air communicating port is formed on a side surface of the casing extending in a direction of gravitational force. The flow regulation plate disposed at an end of the adsorption chamber near the air communicating port and has an opening configured to communicate the adsorption chamber with the air communicating port. The opening is positioned above the air communicating port in the direction of gravitational force. | 10-06-2011 |
20110214646 | FUEL VAPOR PROCESSORS - A fuel vapor processor has a fuel tank configured to reserve fuel, a canister containing adsorbent capable of adsorbing fuel vapor vaporized in the fuel tank, a separator receiving a fuel vapor containing gas from the fuel tank, a regulator controlling the volume of the fuel vapor containing gas supplied to the separator, and a suction unit capable of removing the fuel vapor from the canister. The separator selectively passes the fuel vapor therethrough in order to divide the fuel vapor containing gas into a first gas mainly containing the fuel vapor and a second gas having a fuel vapor density lower than the first gas. The suction unit suctions the first gas from the separator in order to return the first gas into the fuel tank. The second gas is introduced into the canister or is released into the atmosphere. | 09-08-2011 |
20110214572 | CANISTERS - A canister includes a first fuel vapor adsorption device and a second fuel vapor adsorption device. The second fuel vapor adsorption device can adsorb a part of fuel vapor that still remains in a gas after desorption by the first fuel vapor adsorption device. The second fuel vapor adsorption device includes a first passage containing a fuel vapor adsorption material and a second passage containing no fuel vapor adsorption material. The first passage and the second passage allow the gas to flow therethrough. A gas introduction device allows the fuel vapor to flow from the second passage into the first passage. | 09-08-2011 |
20110203559 | PCV VALVE MOUNTING STRUCTURES - A mounting structure for mounting a PCV valve includes a mount recess formed in at least one of joint surfaces of a cylinder head and an intake manifold, so that at least a part of the PCV valve can be fitted into the mount recess. | 08-25-2011 |
20110197861 | CANISTER DEVICES FOR GAS VEHICLE - A canister for a fuel vapor processor connected to a fuel tank and an engine includes a housing defining an adsorption chamber therein and an absorber being capable of adsorbing fuel vapor and filled in the adsorption chamber. The housing has an air communicating pipe communicating the adsorption chamber with the atmosphere, an introducing pipe communicating the adsorption chamber with the fuel tank and an exhaust pipe communicating the adsorption chamber with the engine. It is configured that airflow resistance in the canister along a first route between the air communicating pipe and the exhaust pipe is smaller than airflow resistance along a second route between the introducing pipe and the exhaust pipe. | 08-18-2011 |
20110192786 | FUEL FILTER - A fuel filter for filtering engine fuel received in a fuel tank when the engine fuel is fed to an engine may include a filter member that is received in the fuel tank and is capable of being connected to a fuel inlet port through which the engine fuel is drawn, and a wall member that is connected to a circumferential periphery of the filter member to form a container member. The wall member and the filter member are respectively arranged and constructed to function as a side portion and a bottom portion of the container member. The filter member is capable of being disposed in the fuel tank so as to draw the engine fuel received in the fuel tank through a side thereof that faces the bottom wall of the fuel tank. | 08-11-2011 |
20110186171 | DELIVERY PIPE - A delivery pipe is molded of resin and internally formed with a fuel passage. The delivery pipe has a shape of cross section including a single straight part, a single curved part, and joint parts at joints between ends of the straight part and the curved part. The joint part has an outer appearance protruding outward. The resin contains reinforcing glass fibers. A corresponding portion to a resin injection gate is located at an end region of the straight part in a longitudinal direction of the fuel passage. | 08-04-2011 |
20110186020 | LEAKAGE DIAGNOSTIC DEVICES FOR FUEL VAPOR PROCESSING APPARATUS - A leakage diagnosis device can determine whether or not leakage occurs from a fuel vapor processing apparatus by comparing a diagnosis criterion, such as a reference pressure set for diagnosing leakage, with an internal pressure of a process system of the fuel vapor processing apparatus during application of a negative or positive pressure to the process system. The diagnosis criterion has a device that can correct the diagnosis criterion based on a fuel vapor pressure within the process system. | 08-04-2011 |
20110168931 | SOLENOID VALVES CAPABLE OF CONTROLLING VALVE-OPENING AREA - A solenoid valve has a valve housing, first and second valve members, first and second biasing members, a pressing rod and an electromagnetic driving member. The valve housing defines a fluid pathway for flowing fluid therein. The first and the second valve members are configured to open and close the fluid pathway, respectively. The first biasing member biases the first valve member in a direction for closing the fluid pathway. The second biasing member biases the second valve member in a direction for closing the fluid pathway. The electromagnetic driving member sequentially presses the pressing rod against the first valve member and the second valve member in order to open the fluid pathway in stages. | 07-14-2011 |
20110168121 | FIXING STRUCTURES FOR INTAKE MANIFOLDS - A mounting device can mount an intake manifold to an engine and includes a bending moment applying device applying a bending moment to the intake manifold as the intake manifold is mounted to the engine. | 07-14-2011 |
20110155088 | ENGINE VALVES - An engine valve according to the present teaching has a hot-forged head portion having an oxidized surface layer at a radially outer peripheral surface. The oxidized surface layer is formed during hot-forging of the head portion. | 06-30-2011 |
20110146631 | EVAPORATED FUEL TREATMENT APPARATUS FOR INTERNAL COMBUSTION ENGINE - An evaporated fuel treatment apparatus collects vapor, generated in a fuel tank, in a canister. A bypass passage is provided for an intake passage. An ejector is placed in the bypass passage to generate a negative pressure by air flowing in the bypass passage. When the negative pressure occurs in the ejector, the vapor collected in the canister is drawn from the canister to the ejector through the purge passage and then purged from the bypass passage to the intake passage. An open/close valve placed in the ejector is configured to allow or block the flow of air from the intake passage to the bypass passage according to a pressure difference between the pressure in an upstream portion and the pressure in a downstream portion of the bypass passage during engine operation. | 06-23-2011 |
20110146612 | INTAKE MANIFOLD FOR PREVENTING FLOW NOISE - An intake manifold capable of being connected with a throttle valve apparatus includes a conducting pipe defining an air intake pathway therein, a surge tank for receiving air flowing from the throttle valve apparatus through the air intake pathway, and a noise prevention net placed within a half of a cross section of the air intake pathway. The noise prevention net has a net portion for reducing noise volume and defines at least one opening outside of the net portion in a radial direction in the cross section of the air intake pathway such that the opening is positioned along or near an inner wall of the conducting pipe | 06-23-2011 |
20110146491 | SEPARATION MEMBRANE MODULE AND FUEL VAPOR PROCESSING APPARATUS EQUIPPED WITH THE SAME - A separation membrane module for separating a specific component from a mixture containing a plurality of components includes a plurality of separation stages each including a plurality of hollow fiber membranes arranged in parallel to each other. The separation stages are connected in series via connection portions allowing passage of the mixture. At lease one parameter relating to separation by the hollow fiber membrane or membranes in each separation stage is determined to provide effective separation throughout the separation stages. | 06-23-2011 |
20110139127 | PRESSURE CONTROL DEVICE - A pressure control device controls a pressure of fuel supplied from a fuel tank to an engine via a fuel pump. The pressure control device includes a valve device, a first force-applying device and a second force-applying device. The valve device is provided in a path of the fuel from the fuel pump to the engine and comprising a valve and a spring. The valve is movable in an opening direction and a closing direction for permitting and preventing flow of the fuel from the fuel pump to the engine, respectively. The spring applies a first force to the valve in the closing direction. The first force-applying device is operable to apply a second force to the valve in the opening direction depending on the pressure of the fuel supplied from the fuel pump. The second force-applying device is operable to apply a third force to the valve in the opening direction independently of the second force applied by the first force-applying device or independently of the pressure of the fuel used for the first force-applying device. | 06-16-2011 |
20110132825 | FILTERING DEVICE - A filtering device may includes a bag-shaped filter member that is capable of being connected to a fuel inlet port of a fuel pump disposed in a fuel tank in order to filtrate fuel drawn by the fuel pump, and a wall member that is connected to the filter member such that a fuel reservoir portion can be defined above the filter member. | 06-09-2011 |
20110120425 | Evaporated Fuel Processing Device - A solenoid switching valve is provided at a low concentration gas pipe that sends gas from a second separating film unit to a canister. A reflux pipe, that is branched-off from the low concentration gas pipe by the solenoid switching valve, merges with a medium concentration gas pipe that is from the second separating film unit, and further runs via a circulating pipe, and reaches a merge portion with a purge pipe from the canister. By switching the solenoid switching valve to the merge portion side and driving a purge pump that is provided at an exhaust pipe between the merge portion and a first separating film unit, gas, whose concentration has risen within the low concentration gas pipe, is sent to the first separating film unit, and is separated into high concentration gas HG and low concentration gas LG. | 05-26-2011 |
20110116955 | FUEL PUMP - A fuel pump may include a motor section comprising a rotor and a stator. One of the rotor and the stator may have at least a pair of permanent magnet parts disposed along a first circumferential surface at an interval in a circumferential direction, and at least two magnetic material parts disposed between ends of adjacent permanent magnet parts. The other one of the rotor and the stator may have a first yoke disposed so as to face the permanent magnet parts, wherein a plurality of slots are formed on the first yoke at an interval in the circumferential direction. A surface facing the slots of the magnetic material parts may be shifted, in at least a partial range in the circumferential direction including a permanent magnet part side end where a polarity of a first circumferential surface side is a north pole, from the first circumferential surface in a direction along which a distance to the slots increases. | 05-19-2011 |
20110114061 | ROTATION ANGLE DETECTION DEVICE AND THROTTLE VALVE CONTROL DEVICE USING THE SAME - A rotation angle detection device may include a rotational member, at least one magneto-electric transducer having a magnetism detection portion capable of detecting a change in magnetism caused by rotation of the rotational member and generating a detection signal representative of the change in magnetism, and an operation voltage output portion capable of performing an operation based on the detection signal and generating an output signal. The rotation angle detection device may further include a fixed member having an receiving recess that receives the at least one magneto-electric transducer therein, and an elastic member attached to the receiving recess in which the at least one magneto-electric transducer is received. | 05-19-2011 |
20110110799 | LIQUID PUMP - In a liquid pump, n sets of concavities are formed in an outer circumference of an impeller. In a case where an angle between an i | 05-12-2011 |
20110109304 | ROTATION ANGLE SENSOR - A rotation angle sensor comprises: a resolver stator including an excitation coil for receiving an excitation signal and a detection coil (a sine wave coil and a cosine wave coil) for outputting a detection signal; and a resolver rotor rotatably placed to face the stator. The resolver stator is formed on a stator flat plate. The resolver rotor is made of a flat-shaped rotor flat plate. The stator flat plate and the rotor flat plate are placed in parallel to face each other. The rotor flat plate is formed with a cutout. | 05-12-2011 |
20110094474 | ROTATION ANGLE SENSORS - Angle sensor device has magnetic force detectors detecting alternation of magnetic force caused by rotation of a throttle gear. The magnetic force detectors are buried in a molded body of the angle sensor device constructed of foamed resin. The magnetic force detectors each has a sensing unit detecting alteration of magnetic force and a computing unit computing based on signals from the sensing unit and outputting signals depending on the alteration of magnetic force and is formed in L-shape. Two of the magnetic force detectors are placed opposite each other such that one of the sensing units is disposed on the other sensing unit. The molded body has a cavity surrounded by the magnetic force detectors. | 04-28-2011 |
20110073082 | BLOW-BY GAS REFLUXING DEVICE - A blow-by gas refluxing device is provided for an engine system including an engine and an intake air passage communicating with the engine for supplying intake air into the engine. The blow-by gas refluxing device includes a plurality of blow-by gas refluxing passages each having an inlet communicating with the engine and an outlet communicating with the intake air passage. The outlets of the blow-by gas passages communicate with the intake air passage at different positions along the length of the intake air passage and each of the blow-by gas passages has a backflow preventing device disposed therein, so that blow-by gas produced in the engine can flow into the intake air passage via at least one of the blow-by gas refluxing passages throughout the entire operational range of the engine. | 03-31-2011 |
20110056461 | THROTTLE VALVE CONTROL DEVICE - An electronically-controlled throttle valve control device may include a coil spring that is engaged with a throttle body and a rotating body to bias a throttle valve in a fully opening direction and a fully closing direction, a spring guide that is provided to the rotating body and is capable of supporting the coil spring from inside, and an opener member that is provided to the rotating body and is biased by the coil spring in the fully opening direction or the fully closing direction. The coil spring includes a first coiled portion that is capable of biasing the throttle valve in a first direction, a second coiled portion that is capable of biasing the throttle valve in a second direction, and an intermediate coiled portion that is positioned between the first and second coiled portions. The coil spring is formed such that a central axis of the intermediate coiled portion is displaced radially outwardly relative to a central axis of the first coiled portion. | 03-10-2011 |
20110056460 | RESIN GEARS AND THROTTLE DEVICES - A resin gear has a concave portion formed on a gear body at a position radially inward of a boundary region between a toothed portion and a non-toothed portion. During a molding process, a welded portion is formed at the non-toothed portion by merger of flow of the molten resin along a first path and flow of the molten resin along a second path. The first path detours the concave portion and passes through the side of the toothed portion, and the second path detours the concave portion and passes through the side of the non-toothed portion. | 03-10-2011 |
20110031850 | Structure of Rotation Detector-Equipped Motor and a Manufacturing Method Thereof - A motor is provided with a rotation detector including a detection rotor and a detection stator placed to face the detection rotor. The motor further includes a motor case and a motor shaft protruding out of the motor case. The detection rotor is fixed to an end of the motor shaft. The detection rotor includes a plate and a coil provided on the plate. The plate is fixed to the end of the motor shaft. Specifically, the motor shaft includes an opening in the end. The plate has a circular disc shape and a cylindrical portion protruding in the center from the back side. The cylindrical portion is press-fitted in the opening of the motor shaft to fix the plate to the end of the motor shaft. | 02-10-2011 |
20110024946 | Resin gear - A resin gear comprises a rim in an outer peripheral part of a plate, teeth provided on an outer periphery of the rim, a boss provided in a central part of the plate, and a circular rib between the boss and the rim. The resin gear is manufacturable by injection molding that a molten material is injected into a cavity through a plurality of gates arranged at almost equally spaced intervals circumferentially on a forming portion for the circular rib in a direction perpendicular to a side of the plate. The resin gear includes a plurality of inner thin-wall portions on the plate between the circular rib and the boss and a plurality of outer thin-wall portions on the plate between the circular rib and the rim, each of the inner thin-wall portions and the outer thin-wall portions being symmetrically shaped with respect to the radial line passing through each gate corresponding point. | 02-03-2011 |
20110020154 | STATOR OF ROTARY ELECTRIC MOTOR AND FUEL PUMP - A stator of a rotary electric motor has core segments. All or some of the core segments have terminal mounting members for mounting terminals to which coils are connected. The terminal mounting member and the bobbin for each of the core segments are molded by resin and integrated with the corresponding core segment. | 01-27-2011 |
20110011264 | FUEL VAPOR PROCESSORS - A fuel vapor processor has a fuel tank, a canister, a vapor pipe, a recovery pipe, an air pipe, a suction device, a vapor pipe valve, an air pipe valve, and a pressure regulator. The vapor pipe leads fuel vapor generated in the fuel tank to the canister for trapping the fuel vapor in the canister. The recovery pipe recoveries the fuel vapor desorbed from the canister into the fuel tank. The air pipe communicates the canister with the atmosphere. The suction device is disposed on the recovery pipe for desorbing the fuel vapor trapped in the canister. The pressure regulator is communicated with the air pipe between the air pipe valve and the canister in order to allow gas flow from the atmosphere toward the canister. During desorption of the fuel vapor due to the suction device, the vapor pipe valve and the air pipe valve are closed, and negative pressure is kept in the canister such that the fuel vapor is desorbed from the canister and fresh air is led into the canister via the pressure regulator. | 01-20-2011 |
20100332108 | FUEL VAPOR PRESSURE MEASURING DEVICE - A fuel vapor pressure measuring device is provided, in a fuel supplying system, with a fuel tank for containing fuel, a fuel pump for supplying the fuel in the fuel tank to an injector, a fuel vapor generating section having a nozzle, a vaporizing chamber, and a venturi and vaporizing, in the vaporizing chamber, fuel by ejecting the fuel from the nozzle and causing the fuel to pass through the venturi, a first fuel path for interconnecting the fuel pump and the injector, a second fuel path having one end connected to the fuel pump and the other end connected to the fuel vapor generating section, a pressure sensor for detecting the pressure in the fuel vapor generating section, and an ECU for calculating the pressure of fuel vapor based on the result of detection by the pressure sensor. The fuel vapor generating section is mounted in the fuel tank. | 12-30-2010 |
20100315075 | Resolver of phase difference type - A phase difference type resolver is adapted such that a calculator calculates an angle from a phase difference at a detection-signal zero cross point, determines a velocity at the angle based on an angle calculated from a phase difference at a previous detection-signal zero cross point, calculates an estimated angle at a next detection-signal zero cross point based on the velocity, divides a difference between the estimated angle and the angle into predetermined minimum detection angles, and outputs a real-time signal based on the minimum detection angles in a range after the angle but before the estimated angle. | 12-16-2010 |
20100294251 | FUEL VAPOR PROCESSORS - A fuel vapor processor has a fuel tank, a canister, a recovery pipe, a fuel pump, a negative pressure generator, a pressure regulator, a fuel intake pipe and a fuel intake regulator. The vapor pipe leads the fuel vapor generated in the fuel tank into the canister for trapping the fuel vapor. The recovery pipe connects the fuel tank and the canister for recovering the fuel vapor trapped in the canister into the fuel tank. The fuel intake pipe directly connects the fuel pump provided in the fuel tank with the negative pressure generator for leading fuel to the negative pressure generator. The negative pressure generator generates negative pressure depending on an amount of fuel supplied to the negative pressure generator from the fuel pump. The fuel vapor trapped in the canister is recovered to the fuel tank through the recovery pipe due to the negative pressure. The pressure regulator is connected with the fuel pump for returning excess fuel discharged from the fuel pump into the fuel tank. The fuel intake regulator disposed on the fuel intake pipe controls the amount of the fuel supplied to the negative pressure generator from the fuel pump. | 11-25-2010 |
20100288247 | INTAKE MANIFOLDS - An intake manifold includes a surge tank chamber, a plurality of branch passages and a gas tank chamber capable of introducing a gas and distributing the gas into the plurality of branch passages. The gas is to be refluxed to an engine. | 11-18-2010 |
20100288242 | FUEL VAPOR PROCESSING APPARATUS - A fuel vapor processing apparatus includes a purge air supply device including separation device that can separate gas, which is introduced from within a fuel tank, into a fuel component and an air component. The air component is supplied into a canister for purging the canister. | 11-18-2010 |
20100288241 | FUEL VAPOR PROCESSING APPARATUS - A fuel vapor processing apparatus includes a device that can restrict or prevent flow of gas from a vapor passage into a canister during recovering of fuel vapor from the canister into a fuel tank. | 11-18-2010 |
20100288021 | APPARATUS AND METHOD FOR CHECKING LEAKAGE FROM FUEL VAPOR PROCESSING APPARATUS - An apparatus for checking leakage from a fuel vapor processing apparatus includes an interrupting device capable of interrupting communication between a canister and a fuel tank when a pressure within the canister is negative and a pressure within the fuel tank is positive. A first pressure detecting device can detect the pressure within the canister or its equivalent. A second pressure detecting device can detect the pressure within the fuel tank or its equivalent. | 11-18-2010 |
20100244817 | Resolver - A resolver includes an excitation coil, an excitation signal output circuit for outputting an excitation signal to the excitation coil, a search coil for receiving a magnetic field generated in the excitation coil, and an output signal processing circuit for processing a detection signal detected by the search coil. The resolver further includes a noise cancel circuit configured to previously detect noise from an output signal of the excitation signal output circuit and to output a cancel signal having an opposite phase to that of the noise to the output signal processing circuit. | 09-30-2010 |
20100244816 | Resolver - A resolver comprises a first coil layer and a second coil layer each formed on a flat plate and an insulating layer formed between the first coil layer and the second coil layer. A SIN signal excitation coil includes a SIN first coil formed in the first coil layer and a SIN second coil formed in the second coil layer. A COS signal excitation coil includes a COS first coil formed in the first coil layer and a COS second coil formed in the second coil layer. | 09-30-2010 |
20100242868 | PARTITION MEMBER FOR COOLING PASSAGE OF INTERNAL COMBUSTION ENGINE, COOLING STRUCTURE OF INTERNAL COMBUSTION ENGINE, AND METHOD FOR FORMING THE COOLING STRUCTURE - The position of a passage separating member in the axial direction of the cylinder bores is determined by causing a spacer to contact a bottom surface of a water jacket. When the separating member is inserted in the water jacket, the width of the separating member is reduced due to elastic deformation, so that the separating member can be arranged in the water jacket. After being arranged, the separating member tightly contacts the inner surface of the water jacket due to elastic restoration force. The tight contact prevents the separating member from moving upward in the water jacket. As a result, coolant is prevented from moving between the upper portion and the lower portion with respect to the separating member. The advantages of separate cooling of the coolant in the upper and lower portions with respect to the separating member are obtained. This reliably reduces the temperature difference along the axial direction of the cylinder bore forming body. | 09-30-2010 |
20100241362 | FUEL PROPERTY DETERMINING APPARATUS - A fuel property determining apparatus may comprise a first sensor and second sensor. The first sensor may detect a concentration of an alcohol contained in fuel. The second sensor may detect a vapor pressure of the target fuel. The fuel property determining apparatus may further comprise a memory and a processor. The memory may store first data for determining a “heavy/light gravity—vapor pressure” relationship based on the concentration of the alcohol. The processor may determine the fuel property of the target fuel based on the first data stored in the memory, the alcohol concentration detected by the first sensor, and the vapor pressure detected by the second sensor. | 09-23-2010 |
20100206793 | SUCTION FILTER AND FUEL SUPPLY DEVICE - A suction filter may comprise a bag-shaped filter member and a passage member. The passage member is disposed in an internal space of the filter member. The passage member has a fuel passage and a plurality of openings, and guides fuel from the internal space to the outside of the internal space. The openings communicate the internal space of the filter member to the fuel passage. When the passage member is cut along a surface thereof perpendicular to a longitudinal direction of the passage member in each of the openings, a position on an outer circumferential surface of the passage member in the cut surface, in which the distance between the outer circumferential surface and the filter member is the smallest, is distant in a circumferential direction from a position on the outer circumferential surface where the opening is formed. | 08-19-2010 |
20100192893 | Bearing device - A bearing device includes a plurality of pairs of bearing parts for supporting shafts to each of which a plurality valves are attached and connecting parts for connecting the bearing parts. | 08-05-2010 |
20100181995 | Position sensor - An electromagnetic induction type rotary encoder includes an excitation board including an excitation coil, a detection board fixed to a movable element to face the excitation board and including a detection coil placed to face the excitation coil with a clearance therefrom, and a controller for outputting an excitation signal to the excitation coil and processing a detection signal output from the detection coil. The controller includes an excitation circuit for exciting the excitation coil at high frequency and a high-frequency generating circuit, a demodulation circuit for demodulating a signal from the detection coil in accordance with excitation to the excitation coil, a waveform shaping circuit for waveform shaping a signal from the demodulation circuit, and a pulse generating circuit for outputting a pulse signal based on the signal from the waveform shaping circuit. Each of the excitation coil and the detection coil is formed in a meandering coil pattern. | 07-22-2010 |
20100180870 | FUEL VAPOR PROCESSING APPARATUS - One aspect according to the present invention includes a fuel vapor processing apparatus including an insert. The insert can determine an effective flow passage area of the adsorption material chamber without producing a non-filled region of an adsorption material, through which fuel vapor containing gas flows. | 07-22-2010 |
20100175666 | FUEL SUPPLY SYSTEMS - On aspect according to the present invention includes a fuel supply system including a backflow preventing device provided in a fuel supply path communicating between a fuel pump and a fuel injecting valve device of an engine. The backflow preventing device can prevent backflow of the fuel from the fuel injecting valve device, so that a pressure of the fuel between the backflow preventing device and the fuel injecting valve device can maintained after stopping the fuel pump. | 07-15-2010 |
20100147152 | FUEL VAPOR PROCESSING APPARATUS - One aspect according to the present invention includes a fuel vapor processing apparatus having a case containing a mixture of an adsorption material and a heat storage material therein. A mixing ratio of the heat storage material to the adsorption material is set to be higher for a central area away from a circumferential wall of the case or a flow passage defined in the case than for an outer peripheral area close to the circumferential wall. | 06-17-2010 |
20100139778 | Fuel vapor pressure measuring apparatus - A fuel vapor pressure measuring apparatus includes a fuel vapor generator configured to allow the fuel pressure-fed from the fuel pump to be injected from a nozzle and pass through a venturi, thereby vaporizing the fuel in a vaporizing chamber, a pressure sensor for detecting fuel vapor pressure in the vaporizing chamber, a temperature sensor for detecting fuel vapor temperature in the vaporizing chamber, a temperature regulator for regulating the fuel vapor temperature in the vaporizing chamber, and an electronic control unit (ECU) adapted to operate the fuel pump and the fuel vapor generator and also operate the temperature regulator, to detect temperatures at plural points through the temperature sensor and detect pressures corresponding to the temperatures through the pressure sensor in the process of operation of the temperature regulator, and to calculate fuel vapor pressure characteristics based on the detected temperatures and pressures at the plural points. | 06-10-2010 |
20100126478 | Switching valve for EGR cooler - A switching valve comprises a housing, a gas inflow chamber, a first passage adjacent to the inflow chamber through a first partition wall and communicating with the EGR cooler, a first communication hole providing communication between the inflow chamber and the first passage, a gas outflow passage, a second passage communicating with the outflow passage and adjacent to the inflow chamber through the second partition wall and communicating with the EGR cooler, a second communication hole formed in the second partition wall and providing communication between the inflow chamber and the second passage, and a third partition wall dividing the first passage from the second passage. The first to third partition walls are continuous at a joined portion in a Y-shaped cross section. A valve element is placed to be swingable about a point near the joined portion between the first and second partition walls. The first and second partition walls are slanted with respect to a mold-removing direction to form the inflow chamber and the third partition wall is parallel to a mold-removing direction to form the first and second passages. | 05-27-2010 |
20100117632 | Resolver - A resolver includes a disc-shaped rotor provided with a detection coil pattern formed in flat shape and a stator formed in flat plate shape placed to concentrically fact the rotor in an axial direction and configured such that a planar first excitation coil pattern to which a cosine wave is supplied and a planar second excitation coil pattern to which a sine wave is supplied, the first and the second patterns being laminated. The first and second excitation coil patterns are placed to face the detection coil pattern. An insulation layer is formed with insulating coating material between the first and second excitation coil patterns. | 05-13-2010 |