OTICS Corporation Patent applications |
Patent application number | Title | Published |
20160131193 | BEARING DEVICE AND METHOD OF MANUFACTURING THE SAME - A bearing device includes a support having a bearing hole, a shaft member slidably inserted into the bearing hole thereby to be rotatably supported by the support, the shaft member having an axial end surface and a locking part located on the axial end surface of the shaft member to protrude in an axial direction of the shaft member from an outer periphery of the axial end surface of the shaft member. The locking part is deformed by force applied to its axial protruding end so as to bulge outward in a radial direction intersecting the axial direction, so that the bulging part is capable of being locked to a peripheral part of the bearing hole on an outer surface of the support. | 05-12-2016 |
20160123346 | COMPRESSOR STRUCTURE FOR TURBOCHARGERS - A compressor structure for turbochargers | 05-05-2016 |
20160003259 | TURBOCHARGER - A turbocharger includes a compressor housing including a scroll chamber, and a seal plate assembled to the compressor housing. The compressor housing and the seal plate define an intake passage. The seal plate includes a plate-side connecting portion in contact with the compressor housing. The radius of curvature of a wall surface of the scroll chamber of the compressor housing, in a section including a compressor rotational axis, is increased in a direction toward an outlet located on the downstream side of the scroll chamber in an intake air flow direction. The plate-side connecting portion protrudes in a direction along the compressor rotational axis. The radius of curvature of an inner surface of the seal plate continuous with the scroll chamber of the intake passage, in the section including the compressor rotational axis, is increased in the direction toward the outlet of the scroll chamber. | 01-07-2016 |
20150345515 | TURBOCHARGER - A turbocharger includes a compressor housing and a bearing housing. The compressor housing includes a diffuser surface, and the bearing housing includes an opposite surface. An adhesion preventing part is disposed on each of the diffuser surface and the opposite surface. The adhesion preventing part is provided with a surface forming part and a tank part and is configured so that air is ejected through the ejection holes of the surface forming part to a diffuser passage. An air supply passage is formed in the compressor housing and the bearing housing. At least one of the compressor housing and the bearing housing includes a depurant injection port for supplying a depurant having compatibility with deposits to the tank part through the air supply passage. | 12-03-2015 |
20140360297 | BACKLASH ADJUSTING METHOD AND GEAR MECHANISM - A backlash adjusting method includes pressing an idler gear against a first gear and a second gear with a flexible film being held therebetween so that the idler gear is led to a meshing engagement position where the idler gear is meshing engageable with the first and second gears. The first and second gears are spaced away from each other. The method further includes removing the film after the idler has been led to the meshing engagement position. | 12-11-2014 |
20140322003 | TURBOCHARGER - A turbocharger | 10-30-2014 |
20140290242 | TURBOCHARGER - The present invention provides a turbocharger that prevents a seizure of a shaft member, prevents a leakage of exhaust gas, suppresses deterioration of components, and reduces a number of components. The turbocharger includes a waste gate valve which is connected to the shaft member rotatably supported by penetrating a support hole of the turbine housing. The waste gate valve includes an inclined surface formed at a portion facing an opening of a bypass passage. When the waste gate valve is opened, exhaust gas flown into the bypass passage presses the inclined surface, thrust force is applied to the shaft member in a shaft direction, and a seal contact portion is pressed against a peripheral edge of the support hole via a seal member. | 10-02-2014 |
20140230768 | LASH ADJUSTER - A lash adjuster includes a body formed into a bottomed cylindrical shape, a plunger movably inserted into the body and having a peripheral wall having an oil passage hole, and a partitioning member inserted into the plunger. The plunger defines a high-pressure chamber between the body and a plunger underside and includes a first threaded portion formed in an inner periphery of the peripheral wall. The partitioning member has an oil passage end located above the oil passage hole and an oil passage is defined between an outer surface of the partitioning member and the plunger peripheral wall. A low-pressure chamber is defined inside the partitioning member to reserve hydraulic fluid flowing through the oil passage hole. The hydraulic fluid is then supplied into the high-pressure chamber. The partitioning member has an outer periphery formed with a second threaded portion threadingly coupled with the first threaded portion. | 08-21-2014 |
20140230767 | LASH ADJUSTER - A lash adjuster includes a body, a plunger inserted into the body and a partitioning member inserted into the plunger. The plunger has a bottom wall with a valve hole and a peripheral wall having an oil passage hole. The plunger defines a high-pressure chamber between the bottom wall and the body. The partitioning member has a plate-like baffle located opposite the passage hole. The baffle has an upper end serving as an oil passage end located above the passage hole. The plunger has interior divided into two spaces by the baffle. The passage hole is located at one space side. An oil passage is defined at one space side. A low-pressure chamber is defined at the other space side to store hydraulic fluid flowing through the passage hole, the oil passage and the passage end. The low-pressure chamber supplies the fluid through the valve hole into the high-pressure chamber. | 08-21-2014 |
20140230766 | LASH ADJUSTER - A lash adjuster includes a body, a plunger inserted into the body and having a bottom wall with a valve hole and a peripheral wall having an oil passage hole, and a partitioning member. The plunger defines a high-pressure chamber. The partitioning member is inserted into the plunger and has an oil passage end located above the oil passage hole in an inserted state. The partitioning member has a recess defining an oil passage together with the peripheral wall. The partitioning member defines a low-pressure chamber reserving hydraulic fluid and has, together with the recess, a press-fit portion abutting against an inner periphery of the peripheral wall when the partitioning member is inserted into the plunger. Consequently, the press-fit portion has a deformed cross-sectional shape except for a circular shape when cut at a same height as the oil passage hole. | 08-21-2014 |
20140215820 | ROTATING ASSEMBLY AND ITS MANUFACTURING METHOD - An inner hole to which a driving shaft is inserted is formed in a cam piece of a camshaft, and a plurality of grooves extending in the insertion direction of the driving shaft are formed in the inner hole. The driving shaft is inserted into the inner hole with the cam piece heated to expand the diameter of the inner hole. By reducing again the diameter of the inner hole by cooling it in this state, an outer circumferential surface of the driving shaft is pressed and raised by the inner hole and enters the groove, by which the cam piece is firmly fixed onto the driving shaft. | 08-07-2014 |
20140199480 | METHOD OF MANUFACTURING FUEL SYSTEM PART AND FUEL SYSTEM PART - A method manufactures a fuel delivery pipe including a crude metal made of forged iron, a nickel-phosphorus plating layer formed on an inner surface of the crude metal, and a nonmetal paint film formed on an outer surface of the crude metal. The method includes coating the outer surface of the crude metal with paint to form the paint film, machining the crude metal with the paint film formed thereon to form a machined surface inside the crude metal, and electroless plating the machined crude metal in nickel-phosphorus plating solution to form the nickel-phosphorus plating layer on the machined surface. | 07-17-2014 |
20140137823 | VARIABLE VALVE MECHANISM OF INTERNAL COMBUSTION ENGINE - The present invention provides a variable valve mechanism of an internal combustion engine which includes a main arm that is capable of swinging and that drives a valve when swinging, a first sub arm that is provided on one side in the lateral direction of the main arm and that swings when driven by a first cam, a second sub arm that is provided on the other side in the lateral direction of the main arm and that swings when driven by a second cam, and a switch device that performs switching between a first coupled state where only the first sub arm of the first and second sub arms is coupled to the main arm, and a second coupled state where only the second sub arm of the first and second sub arms is coupled to the main arm. | 05-22-2014 |
20140123949 | DELIVERY PIPE, PIPE, AND METHOD OF PRODUCING DELIVERY PIPE - A delivery pipe includes a pipe integrally including at least one cylindrical tube section and at least one flat tube section, and a valve attachment including a hollow cylindrical portion and a connection portion having a planar shape. The flat tube section includes a planar attachment portion having a distribution hole extending through the planar attachment portion in a thickness direction thereof. The hollow cylindrical portion has a closed end closed by the connection portion and is configured to be attached to a fuel injection valve. The connection portion has an introduction hole that extends through the connection portion in a thickness direction thereof and communicates with the distribution hole of the planar attachment portion. The valve attachment is connected to the planar attachment portion at a position adjacent to one of edges of the planar attachment portion. The edges extend along an axial direction of the pipe. | 05-08-2014 |
20140112762 | TURBOCHARGER - The present invention provides a turbocharger including a compressor housing provided therein with an air flow path in which an impeller is disposed and a bearing housing. The air flow path includes a suction port and a discharge scroll chamber. The compressor housing includes a shroud surface and a diffuser surface. The bearing housing includes a facing surface which is facing to the diffuser surface. A cleaning agent supplying units are provided in the diffuser surface and the facing surface. The cleaning agent supplying units include porous supplying portions for forming at least a portion of the diffuser surface or the facing surface, and a cleaning agent for preventing adhesion of deposits is supplied from the porous supplying portions to the diffuser surface or the facing surface. | 04-24-2014 |
20140086726 | TURBOCHARGER AND METHOD OF PRODUCING THEREOF - A turbocharger includes a compressor housing, a bearing housing and a back plate. A discharge scroll chamber has such a shape that a cross-sectional area thereof gradually increases toward a discharge port in a circumferential direction. The compressor housing includes a scroll piece assembled to a shroud piece. The scroll piece includes a suction port-forming portion, a suction-side concave surface and a scroll outer periphery. The shroud piece includes a shroud fit-in portion, an inner peripheral concave surface, a shroud surface and a diffuser surface. The back plate includes a facing surface, an outer peripheral annular fit-in portion and an outer peripheral concave surface. The outer peripheral concave surface has such a shape that a cross sectional shape thereof formed by a plane including a rotation axis of an impeller gradually changes in the circumferential direction. | 03-27-2014 |
20140083380 | VARIABLE VALVE MECHANISM OF INTERNAL COMBUSTION ENGINE - The present invention provides a variable valve mechanism of an internal combustion engine, which includes a main arm having at a rear end thereof a supported portion that is continuously supported swingably by a support member without floating upward, a sub arm which has a tip end to which a roller contacting a cam is rotatably attached, in which a center of the roller is located rearward of the pressing portion and forward of a swing center of the supported portion, which has a rear end that is swingably supported with respect to the main arm by a support pin, and in which a center of the support pin is located rearward of the center of the roller and forward of the swing center of the supported portion, and a switch pin that is inserted in a central portion of the roller. | 03-27-2014 |
20130312705 | METHOD OF PRODUCING FUEL DISTRIBUTION PIPE - A method of producing a fuel distribution pipe includes providing a forged bar made of metal, forming a main bore in the forged bar so as to extend along an axial direction of the forged bar, forming an injector bore having an injector opening in the forged bar, forming a bolt through hole having a bolt opening in the forged bar, obtaining a base pipe having the main bore, the injector bore and the bolt through hole from the forged bar, and bending the base pipe such that the injector opening of the injector bore and the bolt opening of the bolt through hole are provided along a line parallel to the axis of the main bore. The injector bore directly communicates with the main bore and the bolt through hole does not communicates with the main bore. | 11-28-2013 |
20130306032 | FUEL DISTRIBUTION PIPE - A fuel distribution pipe includes a pipe having a tubular main bore through which fuel is to be passed, a cylindrical injector attachment portion having a cylindrical injector bore to which an injector is to be attached, and a cylindrical bolt attachment portion having a cylindrical bolt bore through which a bolt is to be passed to fix the pipe to the cylinder head with the bolt. The injector bore communicates with the main bore such that an axis of the injector bore intersects with an axis of the main bore. An axis of the bolt bore intersects with the axis of the main bore. | 11-21-2013 |
20130306016 | ROCKER ARM WITH LASH ADJUSTER - The present invention provides a rocker arm with a lash adjuster which includes a rocker arm body portion including a circular fitting hole, a large-diameter hole, and a step portion at a boundary between the fitting hole and the large-diameter hole; a lash adjuster having a snap ring groove formed on an outer circumferential surface of the lash adjuster, and a snap ring fitted to the snap ring groove, wherein the lash adjuster is inserted in the fitting hole, the snap ring increases in diameter, hooks on the step portion, and prevents the lash adjuster from slipping off; and a diameter-reducing member that is assembled in the rocker arm body portion and that reduces the diameter of the snap ring by operation of the diameter-reducing member from an outside of the rocker arm body portion until the snap ring is not engaged with the step portion. | 11-21-2013 |
20130306015 | LUBRICATION STRUCTURE FOR ROCKER ARM - A lubrication structure for a rocker arm includes a lash adjuster mounted in an accommodating portion located in an end of the rocker arm and a pushrod abutting against a lower end of the lash adjuster. The rocker arm is formed with an arm-inside oil supply passage for supplying lubrication oil to the lash adjuster. The lubrication oil guided into the accommodating portion is further guided through a through guide hole of the accommodating portion to an outer peripheral surface of the accommodating portion. The lubrication oil is further guided from an outer oil supply passage formed downwardly in the outer surface of the accommodating portion to the abutment between the lash adjuster and the pushrod. | 11-21-2013 |
20130298856 | VARIABLE VALVE MECHANISM - The present invention provides a variable valve mechanism for an internal combustion engine which includes an input arm, an output arm, a switching pin, and a displacing device. The displacing device includes a pressing device that presses the switching pin from any one of the coupling position and the non-coupling position to the other one of them, a return spring, and a stopper mechanism. The return spring is provided outside of the input arm and the output arm so as to act on one end of the switching pin, which is exposed from the input arm and the output arm. The stopper mechanism includes a displacement restricting groove that is provided on an outer periphery of the switching pin, and a lock member that is engaged with the displacement restricting groove and contacts one end of the displacement restricting groove when the switching pin is stopped at the non-coupling position. | 11-14-2013 |
20130263804 | VARIABLE VALVE MECHANISM - The present invention provides a variable valve mechanism of an internal combustion engine which includes a rotary cam, an output arm, an input member, and a switching device that switches between a coupled state and a non-coupled state. The variable valve mechanism changes a drive state of the valve by the switching operation. The input member includes an annular input roller that contacts the rotary cam, and a swing pin that is inserted into the input roller so as to rotatably support the input roller and that swings relative to the output arm when in the non-coupled state. A center of the relative swinging movement is located at a position different from a rotation center of the input roller which is located inward of the input roller. | 10-10-2013 |
20130233266 | SHIM FOR VALVE DRIVE MECHANISM, AND VALVE DRIVE MECHANISM - The present invention provides a shim for a valve drive mechanism which is interposed between a pad surface of a rocker arm and a stem end surface of a valve. The shim includes a ship top surface that is contacted by the pad surface. The shim top surface is rotated about a center thereof to be cut, is provided with a center hole at the center thereof, and is shaped such that the pad surface does not contact an intersection line between an inner peripheral surface of the center hole and the shim top surface when the rocker arm is swung. | 09-12-2013 |
20130192047 | METHOD OF MANUFACTURING SUPPORTING STRUCTURE, SWAGING JIG FOR USE THEREIN AND THE SUPPORTING STRUCTURE - A method of manufacturing a supporting structure includes disposing a supported member between a pair of support walls opposed to each other, the support walls and the supported member having through shaft holes formed coaxially through the support walls and the supported member respectively, inserting a shaft member through the shaft holes in the disposed state, the shaft member has two ends each of which has a peripheral portion circumferentially divided into a plurality of swaging portions, and swaging the swaging portions sequentially such that regions of the shaft member corresponding to the respective swaging portions are fixed in the shaft holes of the respective support walls. | 08-01-2013 |
20130039750 | COMPRESSOR HOUSING FOR SUPERCHARGER AND METHOD FOR MANUFACTURING THE SAME - A compressor housing is provided with a scroll piece that includes a cylindrical intake port forming section that forms an intake port, a scroll wall surface forming section that forms an air-intake side wall surface of a discharge scroll chamber, and a scroll outer circumferential section that covers an outer circumferential side of the discharge scroll chamber; a shroud piece that includes a cylindrical shroud press fitted section press fitted into the intake port forming section, and a shroud wall surface forming section that forms an inner circumferential side wall surface of the discharge scroll chamber and also forms a shroud surface that opposes an impeller and a diffuser surface; and an outer circumferential annular piece that includes an outer circumferential annular press fitted section that is press fitted inside the scroll outer circumferential section, and an outer circumferential annular wall surface forming section that forms an outer circumferential side wall surface of the discharge scroll chamber. | 02-14-2013 |
20110116945 | LIFTER STRUCTURE - A lifter structure applied to an internal combustion engine and is actuated by a cam, includes a cylindrical lifter guide, a lifter body reciprocally moved in the guide while sliding on an inner circumferential surface of the guide, with drive of the cam, a pair of opposed walls continuous to an end of the lifter body, a pin extending through holes of the opposed walls and having two ends swaged onto outer surfaces of the opposed walls respectively, a roller disposed between the opposed walls, plural swaging side regions located at the same sides of the outer circumferential surface of the lifter body as the outer surfaces of the opposed walls, plural swaging side opposite regions located opposite the swaging side regions respectively, and plural escape recesses formed in the swaging side opposite regions so as to be spaced from the swaging side regions respectively. | 05-19-2011 |
20110050030 | ROTOR SHAFT - It is an object of the present invention to provide a rotor shaft capable of sufficiently securing a fastening strength between an inner shaft and an outer shaft, obtaining an excellent anti-rotation torque, and reducing a weight of the rotor shaft. A rotor shaft | 03-03-2011 |
20110041791 | ROCKER ARM UNIT - A rocker arm unit constituting a valve gear of an internal combustion engine includes a support member assembled into the cylinder head, a rocker arm supported on a top of the support member so as to be swung with a supported position serving as an approximate fulcrum, and a wire member bridging the support member side and the rocker arm side with each other thereby to connect the support member and the rocker arm together. | 02-24-2011 |
20110017160 | ROCKER ARM UNIT AND METHOD OF ASSEMBLING ROCKER ARM UNIT - A rocker arm unit comprises a lash adjuster having a plunger extending axially and a cylindrical body which houses the plunger so that the plunger is slidable; a rocker arm supported by an upper end of the plunger and swung with the supported position serving as a pivot; and a clip which is fixed to the body so as to extend from the fixed position to engage the rocker arm, thereby restricting drop of the rocker arm out of the lash adjuster. | 01-27-2011 |
20100180846 | Rocker arm for internal combustion engine - A rocker arm for an internal combustion engine includes a roller brought into contact with a cam thereby to be rotated, an arm body having a storage portion in which the roller is stored, the arm body being swung by rotation of the cam, thereby opening and closing a valve. The storage portion has an opening edge located on an upper surface of the arm body and opposed to a circumferential surface of the roller, and the opening edge includes a part receiving a lubricant flowing along the upper surface of the arm body, the part being formed with a receiving opening edge jutting out so that both widthwise ends thereof are located away from the circumferential surface of the roller and so that a widthwise central portion thereof comes close to the circumferential surface of the roller. | 07-22-2010 |
20100024753 | Variable valve mechanism - The present invention provides a variable valve mechanism which includes a camshaft having a drive cam, a rocker shaft provided parallel to the camshaft, and a variable mechanism that is provided on the rocker shaft and interposed between the drive cam and a valve, and that changes an opening/closing amount of the valve. The variable mechanism includes a main arm that engages with the drive cam, a cam arm that has a cam surface pressing the valve, a control cam that is provided on the rocker shaft, and has an outer peripheral surface whose distance from a shaft center of the rocker shaft varies gradually, and a displacement member whose distance from the shaft center is changed by turning of the control cam. A relative phase between the main arm and the cam arm is displaced as the distance between the displacement member and the shaft center changes. | 02-04-2010 |
20090298628 | Hydraulic Auto-Tensioner - A hydraulic auto-tensioner includes a high-pressure oil chamber and a low-pressure oil chamber, and oil (L) in the high-pressure oil chamber passes through a clearance (G) between a cylinder ( | 12-03-2009 |
20090194050 | ROCKER ARM - The rocker arm | 08-06-2009 |
20090188457 | Lash Adjuster - A lash adjuster includes a cylindrical bottomed plunger mounted in a cylindrical bottomed body so as to be movable upward and downward and including a high-pressure chamber defined between an underside of the plunger and a bottom wall of the body to reserve an operating oil, a leak path defined by an inner circumference of the body and an outer circumference of the plunger so that the oil reserved in the high-pressure chamber leaks through the leak path with downward movement of the plunger, and a ring-shaped member located between the inner circumference of the body and the outer circumference of the plunger, normally projecting into the leak path and being elastically deformed radially inward or outward with increase in pressure of the oil at the high-pressure chamber side so as to be retreated from the leak path, thereby reducing flow resistance of the oil in the leak path. | 07-30-2009 |
20090144977 | Method for manufacturing rocker arm - The present invention provides a rocker arm manufacturing method capable of improving the durability and excellent in productivity. In the method according to the present invention, an intermediate product | 06-11-2009 |
20090020088 | LASH ADJUSTER AND VALVE APPARATUS - A lash adjuster of the invention includes a body in a cylindrical shape and a plunger inserted to inside of the body. The plunger partitions a pressure chamber at inside of the body by being integrated to the body, and is moved in an axial direction at inside of the body by increasing or reducing a volume of inside of the pressure chamber by making a working fluid flow to inside of the pressure chamber or flow out from the pressure chamber. Further, between an inner peripheral face of the body and an outer peripheral face of the plunger, a spacer filling a gap between the two faces is interposed. | 01-22-2009 |
20080257291 | Variable valve mechanism - A variable valve mechanism includes a low-speed cam, a high-speed cam, a low-speed rocker arm driven by the low-speed cam, a high-speed rocker arm driven by the high-speed cam, and a switching mechanism. A cam profile of the high-speed cam is set such that it does not exceed a cam profile of the low-speed cam. During low-speed operation, the switching mechanism links the low-speed and the high-speed rocker arms such that the low-speed cam causes the high-speed rocker arm to rock together with the low-speed rocker arm and to open and close a valve. During high-speed operation, the switching mechanism de-links the low-speed rocker arm and the high-speed rocker arm such that the low-speed cam causes the low-speed rocker arm to rock idly and the high-speed cam causes the high-speed rocker arm to rock independently and to open and close the valve. The cam profile of the low-speed cam is set such that the valve closes later than it does with the cam profile of the high-speed cam. | 10-23-2008 |
20080230023 | Variable valve mechanism - The present invention provides a variable valve mechanism that varies amounts of opening and closing of a valve includes a rotating cam, a rocker arm, two lash adjusters, a hydraulic passage, and a switching mechanism. The rocker arm includes an input member and an output member. The two lash adjusters support the rocker arm so that the rocker arm can rock. The hydraulic passage includes an internal oil passage that is provided in an interior of at least one of the lash adjusters, and an arm oil passage that is provided in an interior of the rocker arm and that is connected from the internal oil passage. The switching mechanism uses a hydraulic pressure in the hydraulic passage to perform a switching between a linked state and a released state, and the switching varies the amounts of the opening and the closing of the valve. | 09-25-2008 |