Camshaft Or Cam Characteristics Patents (Class 123/90.17)
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Publication number: 20150034033Abstract: A variable valve timing control device includes a driving side rotation member configured to synchronously rotating with a crankshaft, a driven side rotation member positioned coaxially to the driving side rotation member and integrally rotating with a camshaft, an intermediate lock mechanism selectively switching a locked state and an unlocked state, a first electromagnetic valve arranged at a position coaxial to the driving side rotation member and for controlling an supply and draining of an operation fluid relative to the fluid pressure chamber, a second electromagnetic valve positioned being offset from the position coaxial to the driving side rotation member and for controlling a supply and draining of the operation fluid flowing from the camshaft to the intermediate lock mechanism separately from the first electromagnetic valve, and a pump supplying the operation fluid to the first electromagnetic valve and the second electromagnetic valve.Type: ApplicationFiled: June 13, 2014Publication date: February 5, 2015Applicant: AISIN SEIKI KABUSHIKI KAISHAInventors: Masaki KOBAYASHI, Yoshihiro KAWAI
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Publication number: 20150027393Abstract: A valve timing control device includes a lock mechanism having a hole portion formed in one of the driving-side/driven-side rotational members, a sleeve in the hole portion, a lock member in the sleeve and capable of projecting and retracting with respect to the other of the driving-side/driven-side members, and a lock hole formed in the other of the driving-side/driven-side members such that the lock member can be fitted to the lock hole when the lock member projects. The lock mechanism constrains a relative rotational phase of the driven-side rotational member with respect to the driving-side rotational member at a predetermined phase when the lock member is fitted to the lock hole. A first chamfered surface is formed in the circumferential direction at an inner-circumferential corner of an end of the sleeve on the side opposite to the side facing the lock hole.Type: ApplicationFiled: December 21, 2012Publication date: January 29, 2015Inventors: Yuji Noguchi, Kazunari Adachi, Hideyuki Suganuma, Shinji Oe, Takeo Asahi
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Patent number: 8939117Abstract: In a variable valve actuation device for an internal combustion engine, a hollow boss (22b) is fitted around the outer periphery of an outer camshaft (15a) and protrudes from one side of a second cam (22a) located opposite a first cam (20) in the width direction of the second cam over a distance greater than the width of the second cam, in order to suppress misalignment of the boss.Type: GrantFiled: December 3, 2010Date of Patent: January 27, 2015Assignee: Mitsubishi Jidosha Kogyo Kabushiki KaishaInventors: Daisuke Yoshika, Ayatoshi Matsunaga
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Patent number: 8942910Abstract: Even when a crankshaft reversely rotates, a rotation phase of a camshaft can be accurately detected. A motor shaft rotation angle, a crankshaft forward rotation angle, a crankshaft reverse rotation angle, a final crankshaft rotation angle, a sprocket rotation angle of an electric VTC where a sprocket rotates at ½ rotation speed of the crankshaft and a stator of an electric motor are integrally rotated, a motor shaft rotation angle changing amount during a control period, a sprocket rotation angle changing amount, a motor shaft rotation angle changing amount, an intake camshaft rotation angle changing amount, and a current real rotation angle of the intake camshaft are calculated sequentially, and the VTC manipulated variable is computed so that the VTC real angle follows a VTC target angle.Type: GrantFiled: September 14, 2012Date of Patent: January 27, 2015Assignee: Hitachi Automotive Systems, Ltd.Inventor: Kentaro Mikawa
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Patent number: 8935999Abstract: An electronic control device for controlling an internal combustion engine reduces operation amounts of a high-pressure fuel pump and a vacuum pump, which are auxiliary devices driven by drive force of an intake camshaft, when a rotor of a variable valve timing mechanism is rotated to a lock phase in the phase advancing direction at the engine starting. Thus, the rotor rotates to the lock phase quickly and is fixed to the lock phase.Type: GrantFiled: November 10, 2011Date of Patent: January 20, 2015Assignee: Toyota Jidosha Kabushiki KaishaInventor: Toyokazu Nakashima
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Publication number: 20150013629Abstract: An adjusting shaft actuating device of a valve train for internal combustion engines includes a cam unit with first and second cams rigidly connected thereto. The second cam is spaced apart from the first cam in axial and peripheral directions. The device also includes a lever unit non-rotatably arranged on an adjusting shaft with first and second lever arms rigidly connected thereto. The second lever arm is spaced apart from the first lever arm in axial and peripheral directions. The first and second cams are configured to be brought into respective operative connections with the first and second lever arms by an axial alignment between the cam unit and lever unit. The first and second cams and the first and second lever arms are arranged such that the first operative connection and the second operative connection are produced during a rotation of the adjusting shaft in a temporally consecutive manner.Type: ApplicationFiled: July 15, 2013Publication date: January 15, 2015Inventors: Jochen Luedemann, Uwe Parsche
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Patent number: 8935076Abstract: When the operating characteristics of an intake valve are changed by an intake valve stop mechanism, an ECU outputs a command signal (control on) to a solenoid. At this time, a timing, at which the command signal is output to the solenoid, is determined on the basis of a rotational position of a crankshaft, calculated from a signal of a crank position sensor. However, the output timing is corrected on the basis of a rotational phase difference of a camshaft with respect to the crankshaft.Type: GrantFiled: March 29, 2010Date of Patent: January 13, 2015Assignees: Toyota Jidosha Kabushiki Kaisha, Fujitsu Ten LimitedInventors: Koji Ide, Takashi Nishikiori, Masashi Shibayama, Yuusuke Oda
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Patent number: 8931449Abstract: A filter arrangement (2) of a control valve (1) for a camshaft adjuster is provided in which the filter arrangement (2) has a filter (3) and a frame (4) with two articulated legs (5, 6) that are each provided with a change in cross section in a peripheral direction (10), so that the resistance to bending moments of each of the legs (5, 6) is constant along the entire leg (5, 6).Type: GrantFiled: February 25, 2013Date of Patent: January 13, 2015Assignee: Schaeffler Technologies GmbH & Co. KGInventors: Markus Kinscher, Jens Hoppe
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Patent number: 8931447Abstract: A device (1) for controlling and/or influencing the valve control times of an internal combustion engine, in particular to a camshaft adjustment device, which includes a drive element (2) which is fastened to an attachment part (3) with a screw connection (4), wherein the drive element (2) and/or the attachment part (3) are/is composed of a fiber-reinforced material. In order to obtain a more lightweight design and to be able to reduce screwing forces, the invention provides that at least one of the contact faces (5, 6) between the drive element (2) and the attachment part (3) is at least partially subjected to material-removing processing.Type: GrantFiled: June 16, 2011Date of Patent: January 13, 2015Assignee: Schaeffler Technologies GmbH & Co. KGInventors: Andreas Schulte, Rene Gunther, Andreas Strauss
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Patent number: 8931451Abstract: A camshaft adjuster (1) having a control device (4), wherein by means of the control device (4) a selection can be made between an OPA and-or a CTA mode, and the camshaft adjuster (1) has a third hydraulic medium duct CC which positions the camshaft adjuster (1) in a central position.Type: GrantFiled: February 24, 2012Date of Patent: January 13, 2015Assignee: Schaeffler Technologies AG & Co. KGInventor: Gerhard Scheidig
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Patent number: 8931446Abstract: A camshaft adjuster (2) having a locking cover (1) formed of sheet metal, wherein the locking cover (1) has a substantially disc-shaped base surface (3) and has a collar (7), which extends in an axial direction (5) and which runs at least partially around the base surface (3), for receiving a spring cover (31). As a result of the production of the locking cover (1) from sheet metal in combination with a turned-up collar (7), the locking cover (1) can be produced simply and cost-effectively and nevertheless offers adequately high strength despite the low material thickness.Type: GrantFiled: December 20, 2010Date of Patent: January 13, 2015Assignee: Schaeffler Technologies GmbH & Co. KGInventors: Werner Wagner, Josef Janitschek, Mario Arnold
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Patent number: 8931448Abstract: A cover (4) for covering an axial side of a rotor core (6) that is arranged in a camshaft adjuster (50) and has a passage bore (28) for holding a locking pin (30) with which the rotor core (6) can be secured against rotation relative to a stator (54) of the camshaft adjuster (50). The specified cover includes a base body (8) for axially covering at least one area of the rotor core (6) with the passage bore (28) and a support element (38) that is arranged on the base body (8) for the axial counter support of the locking pin (30).Type: GrantFiled: January 11, 2013Date of Patent: January 13, 2015Assignee: Schaeffler Technologies GmbH & Co. KGInventor: Stefan Schelter
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Patent number: 8931450Abstract: A camshaft assembly, comprising a camshaft (2) having a receiving space (6) in an interior thereof, at least some sections of the assembly being made of a magnetizable material, and an electromagnetic actuating unit (4) for actuating an actuating partner (5), comprising a control valve of a camshaft adjuster (3), a coil winding (8) and an armature (7) for cooperating with the actuating partner (5), the armature being adjustable by energizing the coil winding (8).Type: GrantFiled: March 12, 2012Date of Patent: January 13, 2015Assignee: ETO Magnetic GmbHInventors: Stefan Bender, Thomas Schiepp
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Publication number: 20150007788Abstract: A forward phase adjustment unit adjusting a forward phase of a forward intermediate rotor relative to a crank shaft includes a forward stopper mechanism and a forward locking mechanism and a forward biasing mechanism. The forward stopper mechanism prevents further advance of the forward phase by engaging the forward intermediate rotor at a forward most-advanced phase. The forward locking mechanism locks the forward phase when reaching the forward most-advanced phase at a start time of the engine. The forward biasing member biases the forward intermediate rotor in an advance direction. A backward phase adjustment unit adjusts the backward phase of the intake cam shaft relative to a backward intermediate rotor by receiving a cam torque that is biased on average in a retard direction. The backward phase adjustment unit includes a backward stopper mechanism and a backward locking mechanism.Type: ApplicationFiled: July 1, 2014Publication date: January 8, 2015Inventors: Soichi KINOUCHI, Nadir SYED
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Publication number: 20150007789Abstract: Provided is a valve gear which achieves a reduced size and is capable of changing the valve opening timing of an engine valve and changing the length of the valve opening period thereof. A valve gear is provided with: a rotatable first camshaft; a first cam piece that is relatively unrotatably provided on the first camshaft; a second camshaft that is included in the first camshaft and coaxially rotatable; a second cam piece that is relatively unrotatably provided on the second camshaft; a housing; a first vane rotor that is relatively rotatable with respect to the housing; and a second vane rotor that is relatively rotatable with respect to the housing and the first vane rotor The first vane rotor is relatively unrotatably coupled to the second camshaft, and the second vane rotor is relatively rotatably coupled to the first camshaft.Type: ApplicationFiled: December 18, 2012Publication date: January 8, 2015Applicant: HONDA MOTOR CO., LTD.Inventors: Yuji Matsumochi, Kaori Kobayashi
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Patent number: 8925508Abstract: A housing is molded from a resin material, and a first flange portion of the bobbin forms a fusing protrusion, which is joined and fused with the housing. The housing includes through-holes, which are located on a radially inner side of the fusing protrusion and extends through a portion of the housing in the axial direction. A yoke includes at least one pressure reducing part, which is configured to reduce a pressure exerted to a projection of the bobbin by a flow of the resin material at a time of molding the housing.Type: GrantFiled: July 30, 2013Date of Patent: January 6, 2015Assignee: Denso CorporationInventors: Koichiro Matsumoto, Yoshiyuki Murao
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Patent number: 8925507Abstract: A camshaft adjuster (1) is disclosed that has a spring (4) that is supported by spring supports (5), and these spring supports (5) have lubricant reservoirs (6) for the lubrication of the contact area between the spring wire (10) and the spring support (5).Type: GrantFiled: December 12, 2012Date of Patent: January 6, 2015Assignee: Schaeffler Technologies GmbH & Co. KGInventor: Jurgen Weber
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Patent number: 8925503Abstract: A variable valve actuation device for an internal combustion engine includes a variable valve timing mechanism and a valve timing restricting mechanism. When the operating state of the variable valve timing mechanism is in the phase restricting state and the operating state of the variable valve timing mechanism is changed to the phase releasing state on the basis of pressing the accelerator pedal, a torque limiting control is then performed to limit an increase in the torque of the internal combustion engine. With this control the rate of increase of the torque is set less than the rate of increase of the torque corresponding to the operation of pressing the accelerator pedal by retarding and correcting the ignition timing. Thus, when the operating state of the variable valve timing mechanism is changed from the phase restricting state to the phase releasing state, thereby reducing discomfort experienced by the driver.Type: GrantFiled: May 17, 2011Date of Patent: January 6, 2015Assignee: Toyota Jidosha Kabushiki KaishaInventors: Yoshiaki Miyazato, Toshio Imamura, Yuu Yokoyama, Masaki Numakura
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Patent number: 8925506Abstract: In a valve timing control apparatus configured to enable rotary motion of a vane rotor relative to a sprocket in a phase-retard direction or in a phase-advance direction by controlling hydraulic-pressure supply-and-exhaust for each of phase-advance hydraulic chambers and hydraulic-pressure supply-and-exhaust for each of phase-retard hydraulic chambers, first and second lock pins are located in a large-diameter rotor portion rather than a small-diameter rotor portion. The rotary motion of the vane rotor relative to the sprocket from an intermediate lock position between a maximum phase-advance position and a maximum phase-retard position is restricted by engagement of the first lock pin with a first lock hole and by engagement of the second lock pin with a second lock hole. The vane rotor is held at the maximum phase-retard position by engagement of the first lock pin with the second lock hole.Type: GrantFiled: September 13, 2012Date of Patent: January 6, 2015Assignee: Hitachi Automotive Systems, Ltd.Inventor: Atsushi Watanabe
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Publication number: 20150000623Abstract: A phasing system, including: a first phaser section including a first stator non-rotatably connected to a drive sprocket and first chambers formed by a first rotor and the first stator; a second phaser section located in a first axial direction from the first phaser section and including a second stator non-rotatably connected to the drive sprocket and second chambers formed by a second rotor and the second stator; a first portion of a camshaft non-rotatably connected to the first rotor, extending past the first stator in a second axial direction, and including first channels arranged to supply fluid to the first chambers; and a second portion of the camshaft non-rotatably connected to the first portion of the camshaft and extending past the second stator in the first axial direction and including second channels arranged to provide fluid to the second chambers.Type: ApplicationFiled: June 17, 2014Publication date: January 1, 2015Inventors: Michael Kandolf, Matthias Kapp
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Patent number: 8919309Abstract: A mechanism and method of confirming engine timing in an internal combustion engine includes two embodiments, which delay the rotation of the camshaft until confirmation that the engine is properly timed based upon the sensors provided by the electronic control systems of the motor vehicle. In one embodiment, a cam gear assembly is joined to the camshaft to enable proper confirmation that the engine is properly timed before enabling the rotation of the camshaft. In a second embodiment, a gear assembly is used in conjunction with a crankshaft. The crank gear assembly includes an outer ring and an inner ring. A brake is provided in the inner ring to prevent movement until sensors in the vehicle have confirmed proper timing of the engine.Type: GrantFiled: October 31, 2012Date of Patent: December 30, 2014Inventors: Braydon Jensen, Val Jensen
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Patent number: 8919308Abstract: A clutch shaft for a camshaft controller having at each of two ends (30, 31) thereof a rotating joint which equalizes the angle between the axes. An actuator for controlling a camshaft adjustment transmission includes a clutch shaft for controlling the camshaft adjustment transmission to the actuator via a first rotating joint which equalizes the angle between the axes which is coupled in a region of the actuator which faces away from the adjustment transmission.Type: GrantFiled: June 3, 2012Date of Patent: December 30, 2014Assignee: MAGNA Powertrain AG & Co. KGInventors: Michael Schober, Felix Kuffner
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Patent number: 8919310Abstract: Provided is a valve open/close timing control device including, a drive-side rotating body, a driven-side rotating body, a fluid pressure chamber, a partition portion, a fluid control valve part, a first locking mechanism which is capable of restraining a relative rotational phase of the driven-side rotating body relative to the drive-side rotating body at a first predetermined phase between a most retarded angle phase and a most advanced angle phase, and a second locking mechanism which is capable of restraining the relative rotational phase at a second predetermined phase on a more retarded angle side than the first predetermined phase, in which the relative rotational phase is changed to the first predetermined phase when a shift lever position is changed to a parking range.Type: GrantFiled: March 14, 2013Date of Patent: December 30, 2014Assignee: Aisin Seiki Kabushiki KaishaInventors: Masaki Kobayashi, Kazunari Adachi, Kazuo Ueda
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Patent number: 8919306Abstract: A controller for a variable valve device of an internal combustion engine includes a hydraulic valve timing changing mechanism that changes the valve timing VT of an intake valve, a valve timing locking mechanism that locks the valve timing VT to an intermediate phase, and an electronic controller that controls the operation of the valve timing changing mechanism. The electronic controller limits the variable range of the valve timing VT in accordance with the composition of hydraulic oil, when the operational state of the valve timing changing mechanism is a phase-unlocked state in which the valve timing VT can be changed.Type: GrantFiled: July 13, 2012Date of Patent: December 30, 2014Assignee: Toyota Jidosha Kabushiki KaishaInventor: Toyokazu Nakashima
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Patent number: 8915223Abstract: Provided is a valve timing control apparatus that allows relaxation of manufacturing precision of a driving-side rotary member and a driven-side rotary member and that achieves space saving at the same time. An urging member includes at least one trough-folded portion and at least one crest-folded portion, one end side contact portion formed between one terminal end of the urging member and the trough-folded portion and coming into contact with a sealing element, and other end side contact portion formed between the other terminal end of the urging member and the crest-folded portion and coming into contact with a partitioning portion. In association with urging of the urging member, the distance between the one end side contact portion and the other end side contact portion along the urging direction is decreased and the angles of the trough-folded portion and the crest-folded portion are decreased.Type: GrantFiled: October 14, 2011Date of Patent: December 23, 2014Assignees: Aisin Seiki Kabushiki Kaisha, Yamani Spring Co., Ltd.Inventors: Atsushi Homma, Kazunari Adachi, Yuji Noguchi, Satoshi Nishizawa
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Patent number: 8915220Abstract: A finger follower apparatus to effect opening of an engine valve includes a first member with first and second opposite ends. The first member is pivotally fixed at the first end and operatively engaged with the engine valve at the second end. A second member is slidably engaged with the first member and carries a roller for engagement with a cam.Type: GrantFiled: March 2, 2011Date of Patent: December 23, 2014Assignee: GM Global Technology Operations LLCInventor: Burak A. Gecim
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Patent number: 8915222Abstract: A variable valve timing control apparatus includes a driving side rotation member, a driven side rotation member positioned coaxially with a rotational axis of the driving side rotation member, at least one plate, a plurality of partition portions forming a fluid chamber between the partition portions, a vane portion being fitted to the fluid chamber to relatively rotate the driving side rotation member and the driven side rotation member within a movable range thereof, a restriction mechanism for restricting a relative rotational phase, a fastening member fixing the plate and the partition portion of the driving side rotation member, and a reinforcement member engaged with the partition portion including a contact surface among the partition portions, the contact surface being configured to receive a contact of the vane portion when the relative rotational phase is either at a most retarded angle phase or a most advanced angle phase.Type: GrantFiled: February 1, 2013Date of Patent: December 23, 2014Assignee: Aisin Seiki Kabushiki KaishaInventors: Masaki Kobayashi, Kenji Nonaka, Yoshihiro Kawai
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Patent number: 8915221Abstract: A valve timing control having a stator body constructed of a plastic material. The stator body has an annular side wall and a front plate which, together, define a plurality of annularly spaced internal cavities within the stator body. A rotor having a plurality of vanes is positioned within the stator body so that one vane is positioned within each cavity. The rotor is movable relative to the stator body between a first and second rotational position. A plurality of threaded metal inserts are embedded within the stator body and used to attach a metal sprocket to the stator body at a position opposed to the front plate. Two of these inserts also receive the impact load from the rotor.Type: GrantFiled: October 16, 2012Date of Patent: December 23, 2014Assignee: Hitachi Automotive Systems Americas Inc.Inventors: Kenneth Taylor, Andrew Turner
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Publication number: 20140366825Abstract: When an intermediate lock by an intermediate lock mechanism is released, one of two lock keys, which restricts a shift in a direction opposite to a direction that valve timing of an intake valve has been controlled by controlling the valve timing of the intake valve to a phase-advance side with respect to an intermediate lock position, is pulled out of an engaging recessed portion. Thereafter, the other of the two lock keys is pulled out of an engaging recessed portion by controlling the valve timing of the intake valve to a phase-retard side with respect to the intermediate lock position. Therefore, the intermediate lock by the intermediate lock mechanism can be released, while avoiding the lock keys from being pushed against the respective engaging recessed portions.Type: ApplicationFiled: February 13, 2013Publication date: December 18, 2014Inventors: Ken Shiozawa, Hironori Ito, Kenji Ariga, Hiroyuki Itoyama
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Publication number: 20140366824Abstract: A planetary carrier supports a geared rotor from an inside in a radial direction, and receives a radial load in a first region, which is offset to one end from a center position in an axial direction. A ball bearing roller supports the planetary carrier from an outside in the radial direction in a second region, which is offset to an other end from the center position. The ball bearing roller is a single-row ball bearing roller that has an outer ring supported by a drive rotor, an inner ring which supports the planetary carrier, and a plurality of rolling elements which are rotatably installed in a single row to be in contact with and between the outer and the inner rings. The geared rotor is tilted relative to the axial direction, and contacts a driven rotor in the axial direction. An angle of the geared rotor relative to the axial direction is set to be smaller than a maximum allowable angle at which the inner ring is allowed to be tilted relative to the axial direction.Type: ApplicationFiled: June 12, 2014Publication date: December 18, 2014Inventor: Taei SUGIURA
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Patent number: 8910617Abstract: If a relative rotational phase between a first rotor drivably connected to a crankshaft and a second rotor drivably connected to a camshaft is not an intermediate lock phase when an engine is started, a fuel injection starting timing is delayed more than that of the time when the relative rotational phase is the intermediate lock phase. The delay time is determined according to the working oil temperature of a valve timing mechanism during the engine start or the same oil temperature at the previous stop time of the engine, for example. As a result, the start of the engine can be completed as soon as possible while retaining the startability of the internal combustion engine.Type: GrantFiled: October 26, 2009Date of Patent: December 16, 2014Assignee: Toyota Jidosha Kabushiki KaishaInventors: Yuu Yokoyama, Masaki Numakura
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Patent number: 8910602Abstract: A control valve for controlling a pressure fluid, said control valve comprising: a valve housing (10) comprising a valve inlet (P) for the pressure fluid, a control port (A, B) for connecting to an assembly which is to be operated using the pressure fluid, and a valve outlet (TA, TB); a valve piston (20) which can be moved in the valve housing (10) along an axis (R) and which comprises a hollow space (21) through which the pressure fluid can flow from the valve inlet (P) to the control port (A, B); and a filter device (30) which is arranged in the control valve and comprises a filter cross-section (35) which filters the pressure fluid as it passes through it, wherein at least a part of the filter cross-section (35) of the filter device (30) is situated in the hollow space (21) of the valve piston (20).Type: GrantFiled: October 4, 2012Date of Patent: December 16, 2014Assignee: Schwabische Huttenwerke Automotive GmbHInventors: Jürgen Bohner, Jens Krüger, Uwe Meinig
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Patent number: 8910604Abstract: A valve timing control device that enables simplification of the manufacturing process and reduction of the number of parts while suppressing deformation of a driven rotary element. The valve timing control device includes a driving rotary element, a driven rotary element, a plurality of partitions each for dividing a fluid pressure chamber into a regarded angle chamber and an advanced angle chamber, and a connecting element for connecting the driven rotary element to a camshaft. The connecting element includes a press fitting portion having a plurality of fitting segments configured to fit to an inner circumference of a recess of the driven rotary element. At least one of centerlines of the fitting segments extending in a radial direction does not overlap any of the partitions.Type: GrantFiled: January 23, 2012Date of Patent: December 16, 2014Assignee: Aisin Seiki Kabushiki KaishaInventors: Kazunari Adachi, Yuji Noguchi, Atsushi Homma, Takeo Asahi
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Patent number: 8910603Abstract: A device for varying the relative angle position of a camshaft with respect to a crankshaft of an internal combustion engine. A circlip fixes the valve housing in a positively locking manner. The circlip has at least one radially extending circumferential portion which is designed to engage into an annular groove arranged in the camshaft or in the rotor in the axial end region of said camshaft or rotor, wherein the circlip has at least one axially extending retaining portion, wherein the control piston has, in one of the face regions thereof, an annular groove which is designed for the engagement of the at least one axially extending retaining portion, and wherein the valve housing has, in one of its face regions, at least one hook-shaped portion for engaging behind at least one radially extending circumferential portion of the circlip.Type: GrantFiled: January 30, 2012Date of Patent: December 16, 2014Assignee: Schaeffler Technologies AG & Co. KGInventor: Ali Bayrakdar
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Patent number: 8910600Abstract: A pressure storage unit (2) for a camshaft, having an integrated controllable pressure storage device for supporting hydraulic engine components, which includes a housing (4) with a piston (14) mounted movably therein having a piston floor (18), and a spacer element (28) being provided on the piston floor (18).Type: GrantFiled: March 14, 2012Date of Patent: December 16, 2014Assignee: Schaeffler Technologies GmbH & Co. KGInventors: Mathias Boegershausen, Michael Busse
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Patent number: 8910605Abstract: A valve timing control device includes a driving rotary element synchronously rotatable with a crankshaft; a driven rotary element mounted coaxially with the driving rotary element and synchronously rotatable with a camshaft; a plurality of partitions provided in the driven rotary element each for dividing a fluid pressure chamber formed between the driving rotary element and the driven rotary element into a regarded angle chamber and an advanced angle chamber; and a connecting element for connecting the driven rotary element to the camshaft. The connecting element includes a flange inserted into a recess formed in the driven rotatory element, and a shaft portion inserted into a through bore formed in a wall of the driving rotary element adjacent to the camshaft. The flange has an outer diameter larger than that of the shaft portion, and is disposed between the driven rotary element and the wall.Type: GrantFiled: January 23, 2012Date of Patent: December 16, 2014Assignee: Aisin Seiki Kabushiki KaishaInventors: Kazunari Adachi, Yuji Noguchi, Atsushi Homma, Takeo Asahi
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Patent number: 8904980Abstract: A resin member may include a first side wall, which is placed between a first housing and a laminated body, and a second side wall, which is placed between a second housing and the laminated body. A vane rotor may include a pressing oil passage that is configured to guide hydraulic oil to a first seal member and a second seal member to exert a pressing force, which radially outwardly and axially urge the first seal member and the second seal member.Type: GrantFiled: September 30, 2013Date of Patent: December 9, 2014Assignee: Denso CorporationInventors: Masashi Hayashi, Tomonori Suzuki, Isao Hattori
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Patent number: 8904978Abstract: A method for operation of an engine is provided. The method includes operating an engine with independent variable intake and exhaust valve timing with an intake valve timing actuator and an exhaust valve timing actuator, locking both the intake and exhaust valve timing actuators in a mid-lock position, and unlocking both the intake and exhaust valve timing actuators via a common locking-control valve.Type: GrantFiled: November 2, 2012Date of Patent: December 9, 2014Assignee: Ford Global Technologies, LLCInventors: Jamie Charles Hanshaw, Jonathan Denis Crowe, John Eric Rollinger
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Publication number: 20140352639Abstract: A valve timing control apparatus is provided with at least one of: an advance-angle control starting device configured to start to control a relative rotational phase of a camshaft with respect to a crankshaft to an advance side when an internal combustion engine starts and when a valve lift amount associated with an intake valve or an exhaust valve increases; and a delay-angle control starting device configured to start to control the relative rotational phase to a delay side when the internal combustion engine starts and when the valve lift amount associated with the intake valve or the exhaust valve decreases. It is possible to appropriately release engagement by a locking mechanism between a first rotating body configured to rotate synchronously with the camshaft and a second rotating body configured to rotate synchronously with the crankshaft.Type: ApplicationFiled: January 12, 2012Publication date: December 4, 2014Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Hiroshi Kanai
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Publication number: 20140352637Abstract: An electric control device includes: a cam having a variable distance between an outer periphery and a center; a control shaft having one end, which contacts the outer periphery of the cam, and displaceable according to a rotation of the cam to adjust a valve lift amount; a motor rotating the cam; an angle detector detecting a rotation angle of the cam; and a controller. The cam includes multiple steps arranged on the outer periphery. The controller controls the rotation of the cam through the motor to match a detection angle of the angle detector with a target angle corresponding to a target valve lift amount. The controller stops rotating the cam through the motor when a difference between the detection angle and the target angle exceeds a first threshold, and the target angle corresponds to one of the steps.Type: ApplicationFiled: May 14, 2014Publication date: December 4, 2014Applicant: DENSO CORPORATIONInventors: Atsushi ITO, Ryozo KAYAMA, Shinichi SUGIURA, Yasuyoshi SUZUKI
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Publication number: 20140352638Abstract: A camshaft adjusting device having a vane-type adjuster, which includes a stator which is rotatably drivable by a crankshaft; and a rotor which is rotatably supported in the stator and is connectable to a camshaft, a plurality of radially inwardly projecting projections, which divide an annular space between the stator and the rotor into multiple pressure chambers, being provided on the stator; and a plurality of radially outwardly projecting vanes, which divide the pressure chambers into oppositely acting working chambers, being provided on the rotor; a pressure medium being applicable to the working chambers to optionally adjust the rotor with respect to the stator via a central valve, the central valve being integrally connected to the rotor or to the stator or to a component which is rotatably fixedly connected to one of the two parts.Type: ApplicationFiled: May 22, 2014Publication date: December 4, 2014Applicant: Schaeffler Technologies GmbH & Co. KGInventors: Boris Puetz, Ali Bayrakdar
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Patent number: 8899196Abstract: A variable valve lift apparatus may include a camshaft, a cam piece having first cams having lift amounts that are different formed at one side thereof, a first cam protrusion portion formed near the first cams that is slidably disposed on the camshaft to rotate with the camshaft, a first guide pin that protrudes on one side of an exterior circumference of the first cam protrusion portion, a first guide that is disposed to correspond to the first cam protrusion portion and in which a first guide groove is formed thereon to move the first cam piece in one direction along the camshaft according to the rotation of the first guide pin, and a first operation portion that moves the first guide toward the first cam protrusion portion such that the first guide pin is inserted into the first guide groove of the first guide.Type: GrantFiled: October 16, 2013Date of Patent: December 2, 2014Assignee: Hyundai Motor CompanyInventors: Byong Young Choi, Chung Han Oh, Wootae Kim, Back Sik Kim, Ingee Suh, Dae Sung Kim, Gang Il Kim
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Patent number: 8899199Abstract: A camshaft phaser for varying the phase relationship between a crankshaft and a camshaft includes stator having a plurality of lobes. A rotor rotatable about a camshaft axis is disposed coaxially within the stator and has a plurality of vanes interspersed with the lobes to define advance chambers and retard chambers. A lock pin is slidably disposed along a lock pin axis within the rotor for selective engagement with a first lock pin seat and for selective engagement with a second lock pin seat. The lock pin has a lock pin width in a circumferential direction relative to the camshaft axis and a lock pin length perpendicular to the lock pin width and to the lock pin axis such that the lock pin width is less than the lock pin length.Type: GrantFiled: October 24, 2013Date of Patent: December 2, 2014Assignee: Delphi Technologies, Inc.Inventor: James P. Waters
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Patent number: 8899197Abstract: A valve-timing control apparatus includes a drive rotator configured to receive a rotation from a crankshaft; a driven rotator fixed to a cam shaft; and an electric motor. The electric motor includes a stator fixed to the driven rotator, a rotor that rotates relative to the stator, a coil provided to at least one of the stator and the rotor, and a motor output shaft fixed to the rotor.Type: GrantFiled: April 1, 2011Date of Patent: December 2, 2014Assignee: Hitachi Automotive Systems, Ltd.Inventors: Naoki Kokubo, Shinichi Kawada, Seiji Tsuruta
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Patent number: 8899198Abstract: A fastening assembly for fastening a camshaft adjuster to a camshaft, having an input part that can be brought into driving engagement with a crankshaft, an output part that is non-rotationally connected to the camshaft, the output part being mounted rotationally adjustably with respect to the input part, and a control mechanism, by which a rotational angle position between the input and output parts can be adjusted. The output part is provided with a central axial opening penetrated by an end section of the camshaft. The end section has a thread-bearing thread section, which is screwed together with a tension nut acting on the output part such that the output part and the camshaft are axially loaded for the non-rotational connection thereof. To this end, the tension nut is elastically loaded in the axial direction or relieved in the axial direction.Type: GrantFiled: October 28, 2010Date of Patent: December 2, 2014Assignee: Schaeffler Technologies GmbH & Co. KGInventors: Jens Hoppe, Ali Bayrakdar
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Patent number: 8893677Abstract: A system including a phaser with a first lock pin and a second lock pin in the rotor assembly. The first and second locks pins having a locked position where they engage a recess in the housing assembly and an unlocked position in which they do not engage the housing assembly. The first lock pin locks the rotor assembly to the housing assembly when the phaser is in or near an intermediate phase angle position. The second lock pin locks the rotor assembly to the housing assembly when the phaser is at a full retard position. Alternatively, the second lock pin can lock the rotor assembly to the housing assembly when the phaser is at a full advance position.Type: GrantFiled: March 14, 2013Date of Patent: November 25, 2014Assignee: BorgWarner Inc.Inventor: Franklin R. Smith
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Patent number: 8893678Abstract: In a valve drive arrangement of an internal combustion engine, having a first camshaft unit which comprises an outer shaft and primary cams connected to the outer shaft, a second camshaft unit which comprises an inner shaft disposed in the outer shaft, secondary cams connected to the inner shaft and disposed on the outer shaft and an adjusting unit for adjusting the two camshaft units relative to each other an adjusting unit provides for an at least two stage sequential valve stroke wherein, in a switching process, two shaft elements of a camshaft unit are displaced sequentially one after the other.Type: GrantFiled: January 17, 2012Date of Patent: November 25, 2014Assignee: Daimler AGInventors: Tobias Schädel, Sven Skorupa
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Patent number: 8893676Abstract: A central valve of a camshaft adjuster of an internal combustion engine, which has a valve housing, a control piston, and a mounting flange. The valve housing is arranged, at least in part, inside a receptacle inside the camshaft adjuster. The valve housing has at least one inflow connection, one outflow connection, and one working connection. The control piston is arranged axially slidable inside the valve housing. The pressure fluid, which flows to and from the camshaft adjuster, can be controlled by the suitable positioning of the control piston inside the valve housing. Also, the mounting flange is fixedly connected to a wall section of the receptacle, thus determining the axial position of the valve housing relative to the camshaft adjuster.Type: GrantFiled: June 4, 2010Date of Patent: November 25, 2014Assignee: Schaeffler Technologies AG & Co. KGInventors: Jens Hoppe, Ali Bayrakdar
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Patent number: 8887676Abstract: An assembly is disclosed which comprises an SCP camshaft 130 and a phaser mounted at one end of the SCP camshaft. The phaser has a stator 112 driven by an engine crankshaft and two output members 114, 116 each fast in rotation with a respective one of the inner shaft 140 and the outer tube 126 of the SCP camshaft 130. Two timing features 160, 172 are provided for enabling respective sensors to determine the angular positions of the inner shaft and the outer tube of the SCP camshaft. In the invention, both timing features 160, 172 are located on the side of the stator 112 remote from the camshaft 130.Type: GrantFiled: January 27, 2010Date of Patent: November 18, 2014Assignee: Mechadyne PLCInventors: Ian Methley, Richard Alwyn Owen
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Patent number: 8887677Abstract: A stator-cover unit (1) for a camshaft adjuster (31), which is produced in one piece from a sintered material, including a stator (3) and a locking cover (5) which has a slot (17) for rotationally locking a rotor (33). According to the invention, the sintered material has at least in the region of the slot (17) a Vickers hardness of 400 HV to 850 HV. The invention further relates to a camshaft adjuster (31) having such a stator-cover unit (1) with the aforementioned properties, in which a rotor (33) having a number of radially outwardly extending rotor vanes (35) is positioned. The stator-cover unit (1) is simple to produce. A separate insertion part for the slot (17) is not required.Type: GrantFiled: January 17, 2011Date of Patent: November 18, 2014Assignee: Schaeffler Technologies GmbH & Co. KGInventor: Olaf Boese