Patents Examined by Ching Chang
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Patent number: 10514068Abstract: A variable camshaft timing device adjusts phase between a camshaft and a crankshaft and includes a first ring gear configured to connect to the camshaft and rotate about a center axis, having a plurality of radially-inwardly facing gear teeth; a second ring gear axially spaced from the first ring gear, configured to receive rotational input from the crankshaft and rotate about the center axis, having a plurality of radially-inwardly facing gear teeth; a planetary gear assembly including one or more planet gears that are configured for rotation by an electric motor and engage the first ring gear and the second ring gear through the planet gear(s); and a cushioned stop configured to transmit energy between the planetary gear assembly and a planetary gear stop attached to a sprocket or a camshaft plate.Type: GrantFiled: July 31, 2018Date of Patent: December 24, 2019Assignee: BorgWarner, Inc.Inventors: Chad McCloy, Daniel Brown, Shawn Blackmur
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Patent number: 10514085Abstract: A cam chain tensioner device of an internal combustion engine includes a cam chain tensioner, and a tensioner lifter pressing the cam chain tensioner to a cam chain. The tensioner lifter is mounted on an inclined upper surface of the cylinder head. The cylinder head has therein a valve train oil supply passage supplying oil from an oil pump to the valve train camshafts, and a tensioner lifter oil supply passage supplying oil to the tensioner lifter. The valve gear oil supply passage has a branching portion where the tensioner lifter oil supply passage branches. The branching portion is at a position higher than the tensioner lifter, and communicates with the tensioner lifter disposed at a position lower than the branching portion. It is thus possible to prevent fluttering of the cam chain and to reduce noise generated by the cam chain at the time of restart of the engine after it is stopped.Type: GrantFiled: March 7, 2018Date of Patent: December 24, 2019Assignee: HONDA MOTOR CO., LTD.Inventors: Nozomi Okada, Yosuke Hoi, Isao Azumagakito, Shigeru Awazu
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Patent number: 10502147Abstract: This control apparatus for an engine includes an engine, an injector, a spark plug, an intake electric S-VT, an exhaust electric S-VT, and a controller. The controller outputs a control signal to at least one of the intake electric S-VT and the exhaust electric S-VT so as to perform valve control of opening an intake valve when an exhaust valve is open, and then outputs a control signal to the spark plug at predetermined ignition timing such that, after air-fuel mixture is ignited and combustion is started, unburned air-fuel mixture is combusted by autoignition.Type: GrantFiled: August 25, 2017Date of Patent: December 10, 2019Assignee: Mazda Motor CorporationInventors: Atsushi Inoue, Masanari Sueoka, Kota Matsumoto, Tomonori Urushihara
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Patent number: 10487702Abstract: A method is disclosed for adaptively controlling an engine system of a motor vehicle comprising the steps of evaluating the outputs from angular position sensors associated with inlet and exhaust camshafts of an engine of the engine system to establish whether differences between the currently measured positions and previously saved positions are the result of elongation of an endless drive used to drive the camshafts or due to some other reason. If it is confirmed that the differences are due to elongation of the endless drive then the measured values of angular position are used in the control of a number of engine functions.Type: GrantFiled: November 9, 2017Date of Patent: November 26, 2019Assignee: Ford Global Technologies, LLCInventors: Mark Ustel, Mohammad Farid
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Patent number: 10480357Abstract: A variable valve train is provided with cylindrical cam carriers axially slidably and co-rotatably supported on camshafts. The cam carriers have thereon, respectively, plural cam lobes different in cam profile and axially adjacent to each other. Cam changeover mechanisms are provided for axially shifting the cam carriers and for changing over the cam lobes for operating on engine valves. At least one of the cam changeover mechanisms is disposed between axes of the two camshafts and on the side of an engine crankshaft relative to the axes.Type: GrantFiled: March 30, 2017Date of Patent: November 19, 2019Assignee: HONDA MOTOR CO., LTD.Inventors: Yoshihiro Takada, Dai Kataoka, Kazunori Kikuchi
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Patent number: 10480444Abstract: A method is provided for operating a three step camshaft system during engine position sensor fault conditions. The three step camshaft has multiple cam actuators each having an actuator pin. The method includes: disposing multiple camshaft barrels on a camshaft, each barrel having a slot receiving the actuator pin of a cam actuator during camshaft barrel rotation axially displacing each camshaft barrel to a high lift lobe position, a low lift lobe position and an active fuel management (AFM) lobe position; determining if an engine position sensor is in a fault condition; identifying if the fault condition occurs simultaneously with any of the camshaft barrels positioned in the AFM lobe position; energizing selected cam actuators in communication with the camshaft barrels positioned in the AFM lobe position to axially displace the camshaft barrel away from the AFM lobe position and to the low lift lobe position.Type: GrantFiled: May 24, 2017Date of Patent: November 19, 2019Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Etsuko Stewart, Timothy P. Philippart, Scott T. Feldmann, Zhong Li
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Patent number: 10480359Abstract: A camshaft adjusting device (1) is provided having a camshaft adjuster (2, 3) and a camshaft (4) characterized in that the camshaft (4) include a camshaft end (5) which is designed to receive a first hydraulically actuatable camshaft adjuster (2) as well to receive a second hydraulically actuatable camshaft adjuster (3).Type: GrantFiled: August 11, 2016Date of Patent: November 19, 2019Assignee: Schaeffler Technologies AG & Co. KGInventor: Ali Bayrakdar
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Patent number: 10473000Abstract: A multiple variable valve lift apparatus disposed at an intake part and an exhaust part of an engine includes: a moving cam rotating together with a camshaft, being movably disposed in an axial direction of the camshaft, and forming a plurality of cams for realizing valve lift to be different from each other and a cam guide protrusion; an operating unit selectively guiding the cam guide protrusion so as to move the moving cam in an axial direction of the camshaft; a controller controlling an operation of the operating unit; and a valve opening/closing unit opened/closed by contacting any one among the plurality of cams.Type: GrantFiled: December 7, 2017Date of Patent: November 12, 2019Assignees: Hyundai Motor Company, Kia Motors CorporationInventors: Soo Hyung Woo, Heechang Oh, Seung Kook Han, Ju Hun Lee, Wootae Kim
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Patent number: 10473001Abstract: Control valves for a hydraulic camshaft adjuster are disclosed. In one example, the control valve includes a housing and a control piston mounted in a receiver of the housing. Several openings may be provided on an inner casing surface of the receiver, at least some of which may be assigned to an inlet port P, a supply port A, a supply port B or a supply port C. The control piston may include a first control groove, a second control groove and a third control groove which can each be connected to at least two openings of the housing depending on a position of the control piston relative to the housing. The first control groove may be configured to be brought into fluid-conductive connection with a first inlet opening assigned to the inlet port P and with an opening assigned to the supply port A.Type: GrantFiled: June 20, 2016Date of Patent: November 12, 2019Assignee: Schaeffler Technologies AG & Co. KGInventors: Stefan Kramer, David Köhler
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Patent number: 10465573Abstract: In a system that selects a large-cam as a driving cam at a time of a start of an engine, when an engine stop request is output, it is determined whether there is a small-cam cylinder for which a small-cam is selected as the driving cam. In a case where it is determined that there is a small-cam cylinder, a switching command for switching the driving cam from the small-cam to the large-cam is output. When an engine start request is output, the above determination is performed again. In a case where it is determined that there is a small-cam cylinder, the switching command is output to all solenoid actuators again. In addition, the drive of the fuel injector is suspended until the switching operation of the driving cam is completed for all cylinders.Type: GrantFiled: February 5, 2018Date of Patent: November 5, 2019Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Shigehiro Sugihira, Noriyasu Adachi, Keisuke Sasaki, Takayoshi Kawai, Kaoru Otsuka, Shinji Sadakane, Hiroyuki Sugihara
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Patent number: 10465568Abstract: Methods and systems are described for an engine with a cam torque actuated variable cam timing phaser. Phaser positioning control is improved by reducing inaccuracies resulting from inadvertent spool valve and/or phaser movement when the spool valve is commanded between regions. In addition, improved spool valve mapping is used to render phaser commands more consistent and robust.Type: GrantFiled: August 10, 2017Date of Patent: November 5, 2019Assignee: Ford Global Technologies, LLCInventors: Paul A. Pietrzyk, John Eric Rollinger, Ed Badillo
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Patent number: 10465571Abstract: Methods and systems are provided for an engine oil system of a cylinder head. In one example, an engine oil system may include a first oil gallery and a second oil gallery fluidly coupled to each other via a plurality of oil chambers. Each oil chamber includes a plug, and one or more of the plugs may include a slot shaped to direct a flow of engine oil from a solenoid valve to the second oil gallery.Type: GrantFiled: June 13, 2017Date of Patent: November 5, 2019Assignee: Ford Global Technologies, LLCInventors: Jeff D. Fluharty, Jonathan Denis Crowe, John Christopher Riegger, James E. Froling
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Patent number: 10458293Abstract: Provided is a metering plate for a poppet-style valve in which the metering plate includes a peripheral edge structure that reduces the impact of edge variation as a result of typical manufacturing tolerances. The peripheral edge structure is located at the sealing surface and extends from the peripheral surface of the metering plate so as to avoid a sharp edge at the outer diameter of the metering plate. In embodiments, the peripheral edge structure is a chamfered surface or a curved surface. Small dimensional deviations from these surfaces resulting from typical manufacturing tolerances do not have a significant effect on the discharge coefficient of the metering plate. In this way, the discharge coefficients of poppet-style valves across a fluid admission system are contained in a much tighter range, thereby enhancing the efficiency of and control over the fluid admission system.Type: GrantFiled: July 20, 2017Date of Patent: October 29, 2019Assignee: Woodward, Inc.Inventors: Timothy J. Farrow, Jerrod C. Pedley, Roger M. Kifer, Steven A. DeHerrera
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Patent number: 10458465Abstract: A cam follower roller device having a tappet extending along a longitudinal axis and including a cylindrical tappet body defining a bore. The device further having a rolling assembly arranged within the bore, and including a support body with a base and flanges, a pin and a roller. Each of the flanges of the support body is provided with an outwardly protruding portion that extends transversally from the flange towards the tappet body. The tappet body includes a support diametrically opposed and having each a transverse surface that cooperates with the protruding portion of the support body to longitudinally block the support body.Type: GrantFiled: October 27, 2017Date of Patent: October 29, 2019Assignee: Aktiebolaget SKFInventors: Samuel Viault, Charles Chambonneau, Mickael Chollet, Thomas Perrotin, Michel Rabin, Philippe Walter
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Patent number: 10450907Abstract: Methods and systems are provided for a valve lift control device. In one example, a method may include rotating an adjusting camshaft of the valve lift control device in order to adjust a valve lift of one or more cylinders.Type: GrantFiled: September 7, 2017Date of Patent: October 22, 2019Assignee: Ford Global Technologies, LLCInventors: Guenter Hans Grosch, Rainer Lach, Joerg Bonse
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Patent number: 10436080Abstract: A multiple variable valve lift apparatus may include a moving cam formed of a hollow cylindrical shape, configured to be moveable in an axial direction of a camshaft while being rotated with the camshaft, and forming a plurality of cams implementing a cam guide protrusion device and different valve lifts from each other; an operation device selectively guiding a cam guide protrusion device to move the moving cam in the axial direction of the camshaft; a controller configured for controlling an operation of the operation device; a valve opening/closing device in contact with any one cam among the plurality of cams; a plurality of stopper grooves formed at an external circumference of the camshaft; and a stopper device provided at the moving cam and inserted to the stopper groove to be rotated at a position after the moving cam is moved.Type: GrantFiled: December 6, 2017Date of Patent: October 8, 2019Assignees: Hyundai Motor Company, Kia Motors CorporationInventors: Soo Hyung Woo, Jin Wook Son, You Sang Son, Seung Kook Han, Back Sik Kim, Wootae Kim
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Patent number: 10428746Abstract: A method of controlling an operation of an inlet valve system arranged in connection with each cylinder of an internal combustion piston engine, includes monitoring at least one parameter relating to engine load conditions, controlling using a primary control procedure an opening and closing timing of an inlet valve in response to the at least one parameter, and feeding charge air into the cylinder when the inlet valve is open. In a secondary control procedure a parameter relating to engine load conditions is measured and the closing timing of the inlet valve of the inlet valve system is controlled in response to the at least parameter independently from and with higher priority than the primary control procedure.Type: GrantFiled: December 8, 2014Date of Patent: October 1, 2019Assignee: WÄRTSILÄ FINLAND OYInventors: Sören Hedvik, Magnus Sundsten
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Patent number: 10428696Abstract: The invention is an actuator device comprising a first and a second tappet, wherein the first tappet is movably arranged in a first guide sleeve and the second tappet is movably arranged in a second guide sleeve, wherein the first tappet in the first guide sleeve is surrounded by a first restoring spring and the second tappet in the second guide sleeve is surrounded by a second restoring spring, and wherein the guide sleeves are arranged at a fixed distance from each other, wherein the first restoring spring is a coil spring wound in the left-hand direction and the second restoring spring is a coil spring wound in the right-hand direction.Type: GrantFiled: April 4, 2016Date of Patent: October 1, 2019Inventors: Tsuneo Suzuki, Harald Burkart, Wolfram Maiwald, Pedro Marull-Kessler, Michael Tischtschenko, Martin Schuetz
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Patent number: 10427206Abstract: A method of forming a target wheel for a camshaft phaser assembly is disclosed. The method includes providing a sheet metal body, and stamping the sheet metal body to form a sensor tab. The sensor tab includes a medial flange positioned between first and second axially extending edges. The sensor tab includes: at least one inner corner defined between the medial flange and at least one of the first axially extending edge or the second axially extending edge, and at least one outer corner defined between the medial flange and at least one of the first axially extending edge or the second axially extending edge. The method includes forming a groove in the at least one inner corner.Type: GrantFiled: June 29, 2018Date of Patent: October 1, 2019Assignee: SHAEFFLER TECHNOLOGIES AG & CO. KGInventor: Alexandre Camilo
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Patent number: 10415440Abstract: A continuously variable valve lift system includes a driving swing arm, a camshaft, a valve structure, a control shaft and an adjusting swing arm. The valve structure includes a roller rocker arm and a valve connected to the roller rocker arm. The driving swing arm has a driving arc surface. The driving arc surface contacts with the roller rocker arm to drive the valve to perform a reciprocating movement. The driving swing arm is sleeved on the control shaft and is capable of swinging around the control shaft. The control shaft is provided with a mounting part. The adjusting swing arm is connected to the mounting part and is capable of swinging relative to the mounting part. The adjusting swing arm is disposed between the camshaft and the driving swing arm. Two sides of the adjusting swing arm are contacted respectively with the camshaft and the driving swing arm.Type: GrantFiled: October 14, 2016Date of Patent: September 17, 2019Assignee: GUANGZHOU AUTOMOBILE GROUP CO., LTD.Inventors: Hainian Lian, Jujiang Liu, Liang Chen, Yuhuai Li, Zonglan Zhang, Zhen Lu