Patent application number | Description | Published |
20090321214 | ELECTROMAGNETIC CLUTCH - An electromagnetic clutch includes a coil generating a first magnetic flux or a second magnetic flux depending on the direction of current flowing therein, a stationary core accommodating therein the coil, a stationary magnet providing a magnetic flux that opposes the first magnetic flux, a rotor rotatable concentrically with a rotatable shaft, a moving core fixed to the rotor, a moving magnet providing a magnetic flux that opposes the second magnetic flux, a sun gear fixed to the rotatable shaft, an internal gear fixed to the rotor, a planetary gear meshed with the sun gear and the internal gear, an arm supporting the planetary gear, a pulley rotatable concentrically with the rotatable shaft, a first armature being capable of coupling to the stationary core, and a second armature being capable of coupling to the moving core. | 12-31-2009 |
20100158710 | SCROLL COMPRESSOR - A compressor includes a housing, a fixed scroll, a movable scroll and a control valve. The housing has a suction chamber, a discharge chamber and a backpressure chamber formed therein. The scrolls are pressed against each other by backpressure in the backpressure chamber. The control valve for controlling the backpressure has first, second and third chambers arranged in this order. The first, second and third chambers are connected to the discharge chamber, the backpressure chamber and the suction chamber, respectively. The control valve has a valve member. The valve member has a first pressure-receiving surface located in the first chamber, a second pressure-receiving surface located in the second chamber and a third pressure-receiving surface located in the third chamber. The area of the third pressure-receiving surface is larger than the area of the first pressure-receiving surface and larger than the area of the second pressure-receiving surface. | 06-24-2010 |
20100257870 | VEHICLE AIR CONDITIONER - A vehicle air conditioner includes a heat storage unit having a heat storage medium, a first heat exchanger for heat exchange with air that is sent out of the vehicle, a second heat exchanger for heat exchange with air that is sent to the vehicle compartment, and a peltier device. The heat storage unit has a first inlet port and a first outlet port through which heat exchange medium flows in and out of the heat storage unit where heat is exchanged between the heat storage medium and the heat exchange medium. The peltier device is operable to provide one of positive heat and negative heat to the heat exchange medium flowing through the heat storage unit and also to provide the other of the positive heat and the negative heat directly or indirectly to the first heat exchanger. | 10-14-2010 |
20100293966 | VEHICLE AIR CONDITIONER - A vehicle air conditioner includes a first heat exchanger, wherein air around the first heat exchanger is supplied into a vehicle compartment, a heat storage unit, an in-vehicle circuit that connects between the first heat exchanger and the heat storage unit, a second heat exchanger, wherein air around the second heat exchanger is sent outside a vehicle, a vehicle system, wherein the vehicle system generates exhaust heat, an out-vehicle circuit, a connection circuit that connects between the in-vehicle and the out-vehicle circuits, a plurality of valves operating so that the in-vehicle circuit and the out-vehicle circuit are connected or disconnected from each other through the connection circuit and a control device for controlling states of the valves. | 11-25-2010 |
20100307884 | ELECTROMAGNETIC CLUTCH - An electromagnetic clutch includes an external drive source, a driven apparatus having a rotary shaft, a power transmission path, first and second rotating parts, a power source, an electromagnetic coil and a power cutoff mechanism. A power transmission path is formed between the external drive source and the driven apparatus, and in which the first and the second rotating parts, the electromagnetic coil and the power cutoff mechanism are disposed. The first rotating part is driven to rotate by power from the external drive source. The second rotating part is mounted on the rotary shaft for rotation therewith. The electromagnetic coil is energized by electric current from the power source to generate electromagnetic attraction force by which the first and the second rotating parts are connected for transmitting power therebetween. The power cutoff mechanism stops excessive power transmission from the external drive source to the driven apparatus when the electromagnetic coil is energized. | 12-09-2010 |
20110056235 | LINEAR ELECTRIC COMPRESSOR AND REFRIGERANT CIRCUIT - A refrigerant circuit includes a linear electric compressor including a housing with a cylinder bore, a pair of end plates, a valve unit, a piston, an urging device for urging the piston, a coil generating electromagnetic force and a permanent magnet. The permanent magnet cooperates with the urging device and the coil to reciprocate the piston in the cylinder bore. The piston further includes a piston rod and the urging device is provided around the piston rod and a pair of piston heads integrally formed at opposite ends of the piston rod. The diameter of the piston rod is smaller than that of the piston head. The permanent magnet is provided on the piston head and the coil surrounds the piston head. The housing further includes a seat located between the pair of piston heads and the urging device is provided between the seat and each of the piston head. | 03-10-2011 |
20110058962 | COMPRESSOR FOR USE IN A VEHICLE - A compressor for use in a vehicle includes a mechanical compression mechanism including a first casing and a drive shaft. The first casing has therein a first suction chamber and a first discharge chamber. The drive shaft is rotatably supported by the first casing and mechanically driven by a drive source for compression of refrigerant. The compressor further includes a linear electric compression mechanism including a second casing and a piston. The second casing has therein a second suction chamber and a second discharge chamber. The piston is reciprocally movable in the second casing and driven by electromagnetic force for compression of refrigerant. The first casing is integrated with the second casing so as to allow at least one of fluid communication between the first suction chamber and the second suction chamber and between the first discharge chamber and the second discharge chamber. | 03-10-2011 |
20110083920 | VEHICLE WITH RANKINE CYCLE SYSTEM AND REFRIGERATING CYCLE SYSTEM - A vehicle with a Rankine cycle system and a refrigerating cycle system for air-conditioning includes a Rankine condenser forming a part of the Rankine cycle system which converts waste heat of a vehicle into power and an air-conditioning condenser forming a part of the refrigerating cycle system. The Rankine condenser and the air-conditioning condenser are disposed one above the other in the vehicle as viewed from a front of the vehicle. | 04-14-2011 |
20110088394 | WASTE HEAT REGENERATION SYSTEM - A waste heat regeneration system for a vehicle having a vehicle engine actuated by a start-stop switch includes Rankine cycle circuit, a motor generator, a by-pass circuit and a control device. The Rankine cycle circuit includes a pump, a boiler heating the heat medium by heat exchanging with waste heat generated by the vehicle engine, an expansion device and a condenser. The by-pass circuit is connected to the Rankine cycle circuit at the upstream and downstream sides of the condenser and the communication of the heat medium is openable and closable therethrough. When the start-stop switch of the vehicle engine is turned off, the control device controls the by-pass circuit to communicate the heat medium therethrough and keeps controlling of the rotational speed of the motor generator until pressure difference between the upstream and downstream of the expansion device is decreased to a predetermined level, and then stops the control. | 04-21-2011 |
20110088397 | WASTE HEAT RECOVERY SYSTEM - The waste heat recovery system of an engine includes a Rankine cycle, a first bypass passage, a first valve and a control unit. The Rankine cycle allows a working fluid to circulate therethrough. The Rankine cycle has a first heat exchanger, a second heat exchanger, an expander and a condenser. The first heat exchanger exchange heat between the working fluid and the engine or a first intermediate medium exchanging heat with the engine. The first bypass passage allows the working fluid to pass therethrough. One end of the first bypass passage is located at an upstream side of the condenser and the other end is located at a downstream side of the condenser. The first valve opens and closes the first bypass passage. When temperature of the engine or the first intermediate medium is lower than a first predetermined value, the control unit opens the first valve. | 04-21-2011 |
20110140551 | HEAT RECOVERY SYSTEM FOR VEHICLE - A heat recovery system includes an electric rotary device, a heat exchanger, a pipe and a reservoir. The electric rotary device has a stator core and a housing. The stator core is wounded with a coil. The heat exchanger provides heat exchanging between first and second heat medium. The first heat medium is in contact with the coil and absorbs heat from the coil. The pipe connects the electric rotary device to the heat exchanger and transfers the first heat medium. The reservoir is formed in the housing and stores the first heat medium. The electric rotary device has an insulative body. The insulative body prevents heat of the first heat medium from being dissipated outside of the housing. | 06-16-2011 |
20110214838 | VEHICLE AIR CONDITIONER - A vehicle air conditioner includes a first heat storage device having a first heat storage medium, a battery disposed under a floor of a compartment of a vehicle on a chassis side and a heat insulator covering the first heat storage device for insulating. The first heat storage device is disposed on and thermally connected to the battery. | 09-08-2011 |
20110243766 | COMPRESSOR WITH TRANSMISSION - A compressor includes a housing, a compression mechanism, an input shaft rotatable on an axis thereof, an output shaft for driving the compression mechanism, a transmission for transmitting torque from the input shaft to the output shaft and also changing the rotating speed of the input shaft and a control device for controlling the operation of the transmission. The transmission includes a plurality of planetary rollers, a carrier rotatably supporting the respective planetary rollers and being integrally rotatable with the input shaft, a sun roller engaged with the respective planetary rollers and integrally rotatable with the output shaft and a ring roller engaged with the respective planetary rollers. The ring roller can be fixed to the housing or rotatable relative to the housing. The control device includes a one-way clutch allowing the ring roller to rotate only one direction relative to the carrier and a clutch fixing the ring roller to the housing or allowing the ring roller to rotate relative to the housing. The input shaft, the carrier, the respective planetary rollers and the sun roller cooperate to form an assembly that can move as a unit relative to the housing in the direction that is parallel to the axis. | 10-06-2011 |
20110245004 | COMPRESSOR WITH TRANSMISSION - A compressor includes a housing, a compression mechanism, an input shaft rotatable on an axis thereof, an output shaft for driving the compression mechanism, a transmission for transmitting torque from the input shaft to the output shaft and also changing the rotating speed of the input shaft and a control device. The transmission includes a plurality of planetary rollers, a carrier rotatably supporting the respective planetary rollers and being integrally rotatable with the input shaft, a sun roller engaged with the respective planetary rollers and integrally rotatable with the output shaft and a ring roller engaged with the respective planetary rollers. The ring roller can be fixed to the housing or rotatable relative to the housing. The control device includes a one-way clutch allowing the ring roller to rotate only one direction relative to the carrier and a clutch fixing the ring roller to the housing or allowing the ring roller to rotate relative to the housing. The ring roller includes a first ring engaged with the respective planetary rollers and a second ring supporting the one-way clutch. The ring roller can be movable relative to the housing in the direction parallel to the axis. The first ring and the second ring are connected so that the first ring can be displaced in a radial direction, integrally rotatable with the second ring and movable with the second ring in the direction parallel to the axis. | 10-06-2011 |