公开(公告)号：US10294833B2

公开(公告)日：2019-05-21

申请号：US15391344

申请日：2016-12-27

Applicant: Ford Global Technologies, LLC

Inventor： Paul A. Pietrzyk ,  John Eric Rollinger ,  Gilbert Fournelle

IPC: F01L1/34 ,  F01L1/344 ,  F01L1/047 ,  F02D41/14 ,  F02D41/22 ,  F01L1/08

Abstract: 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.

公开(公告)号：US20190112950A1

公开(公告)日：2019-04-18

申请号：US16158598

申请日：2018-10-12

Applicant: thyssenkrupp AG ,  ThyssenKrupp Presta TecCenter AG ,  Dr. Ing. h.c. F. Porsche AG

Inventor： Norbert NITZ ,  Jens SCHIRMER ,  Tobias MEHLHORN ,  Dietmar SCHWARZENTHAL

IPC: F01L1/08 ,  F01L1/047 ,  F01L1/04

CPC classification number: F01L1/08 ,  F01L1/044 ,  F01L1/047 ,  F01L1/053 ,  F01L13/0005 ,  F01L2001/0471 ,  F01L2001/0476 ,  F01L2013/0052 ,  F01L2810/02

Abstract: The present invention relates to a sliding cam module for a camshaft, which comprises at least one sliding cam with at least one cam segment, comprising at least two cams with cam tracks that are different to one another as well as a closed bearing element, which is arranged on the sliding cam in a rotatable and axially non-displaceable manner for mounting the sliding cam, wherein the bearing element comprises a recipient area to hold at least one section of a locking device to lock the sliding cam in an axial position. Furthermore, the invention relates to a camshaft with at least one corresponding sliding cam module as well as a shaft, on which the sliding cam module is arranged in a rotationally fixed manner and can be moved in an axial direction along a longitudinal axis of the shaft and a cover module, which comprises a cylinder-head cover as well as a closed bearing element, which comprises a recipient area to hold at least one section of a locking device to lock the sliding cam in an axial position.

公开(公告)号：US10208681B2

公开(公告)日：2019-02-19

申请号：US15366101

申请日：2016-12-01

Applicant: Hyundai Motor Company

Inventor： You Sang Son ,  Woong Kim ,  Kyoung Pyo Ha ,  Back Sik Kim ,  Dongheon Park

IPC: F01L1/34 ,  F02D13/02 ,  F01L1/053 ,  F01L1/08 ,  F01L1/344 ,  F01M9/10 ,  F01M11/02

Abstract: A continuous variable valve timing apparatus may include a camshaft, a cam device on which a cam is formed respectively and of which the camshaft is inserted thereto, wherein a relative phase angle with respect to the camshaft is variable, an inside bracket configured to transmit rotation of the camshaft to the cam device, a lifter in which the inside bracket is rotatably inserted therein and on which a cylinder opening and a shaft opening are formed thereon, a control shaft parallel to the camshaft and to which a control rod, inserted into the shaft opening, is eccentrically formed, a control cylinder on which a control rod opening where the control rod is inserted therein is formed and inserted into the cylinder opening, a guide portion guiding movement of the lifter and a controller selectively rotating the control shaft, wherein the lifter may move.

公开(公告)号：US10190451B2

公开(公告)日：2019-01-29

申请号：US15889545

申请日：2018-02-06

Applicant: Pacbrake Company

Inventor： Vincent Meneely ,  Robert Price

IPC: F02D13/04 ,  F01L13/06 ,  F01L1/18 ,  F02B75/02 ,  F01L1/26 ,  F01L13/00 ,  F01L1/08 ,  F01L1/14 ,  F01L1/20 ,  F01L1/047

Abstract: A compression-release brake system is provided that includes a lost motion exhaust rocker assembly, an actuation piston, and a reset device. The actuation piston includes an actuation piston body that is slidably received by the rocker arm to define a piston cavity in the rocker arm and is movable between piston retracted and extended positions. The actuation piston is configured to be operatively associated with the exhaust valve to permit unseating of the exhaust valve from the seated state. An actuation piston check valve is configured to move between closed and open positions to permit hydraulic fluid flow through an actuation piston communication port to the piston cavity. The reset device includes a reset check valve and a reset pressure control spring for applying a biasing force to the reset check valve to urge the reset check valve toward an open position.

公开(公告)号：US10060400B2

公开(公告)日：2018-08-28

申请号：US15923113

申请日：2018-03-16

Applicant: GT TECHNOLOGIES

Inventor： John E. Brune ,  Scott P. Smith

IPC: F01L1/14 ,  F02M59/10 ,  F02M59/06 ,  F04B1/04 ,  F01L1/08 ,  F02M39/02 ,  F01L1/047

CPC classification number: F02M59/102 ,  F01L1/047 ,  F01L1/08 ,  F01L2107/00 ,  F02M39/02 ,  F02M59/06 ,  F02M2200/50 ,  F02M2200/852 ,  F04B1/0426

Abstract: A tappet assembly for use in translating force between a camshaft lobe and a fuel pump assembly via reciprocal movement within a tappet cylinder having a guide slot. The tappet assembly includes a bearing assembly having a shaft and a bearing rotatably supported by the shaft for engaging the lobe. An intermediate element has a shelf for engaging the fuel pump assembly, and a pair of arc-shaped bearing surfaces rotatably engaging the shaft when the bearing engages the lobe and the shelf engages the fuel pump assembly. The intermediate element includes a pair of lock apertures. The bearing assembly further includes a pair of shields supported on the shaft of the bearing assembly with the bearing interposed between the shields. The shields include a pair of opposing fingers for engaging the lock apertures so as to substantially retain the bearing assembly to the intermediate element and so as to substantially retain the shaft of the bearing assembly within the annular body in absence of engagement between the bearing and the camshaft lobe.

公开(公告)号：US20180216502A1

公开(公告)日：2018-08-02

申请号：US15879428

申请日：2018-01-24

Applicant: Mahle International GmbH

Inventor： Patrick Altherr ,  Christoph Beerens ,  Thomas Flender ,  Herrn Rolf Kirschner ,  Sascha Naujoks

IPC: F01L1/344 ,  F01L1/047 ,  F01L1/08 ,  F02D13/02

Abstract: A valve train for a reciprocating piston internal combustion engine may include a crankshaft, at least one inlet valve, at least one outlet valve, at least one camshaft coupled rotationally to the crankshaft, at least one inlet cam held on a first camshaft, at least one outlet cam held on one of the first camshaft or a second camshaft, at least one brake cam held on one of the first camshaft or the second camshaft, at least one inlet cam follower, which may actuate the at least one inlet valve and may be drive-connected at least at times to the inlet cam, at least one outlet cam follower, which may actuate the at least one outlet valve, may be drive-connected at least at times to the outlet cam, and, in a braking mode, may be drive-connected at least at times to the brake cam, and a phase shifting device for adjusting a phase position of the brake cam relative to the crankshaft.

公开(公告)号：US10024218B2

公开(公告)日：2018-07-17

申请号：US15003822

申请日：2016-01-22

Applicant: YAMAHA HATSUDOKI KABUSHIKI KAISHA

Inventor： Yukinori Nose

IPC: F02B25/08 ,  F01N13/10 ,  F01L1/08 ,  F01N3/10 ,  F02B75/22 ,  F02B61/04 ,  F02B75/18 ,  F01L1/053

Abstract: An eight cylinder engine includes cylinders that are fired at intervals corresponding to a crank angle of 90 degrees. The firing is conducted in four cylinders of each of first and second banks at uneven intervals. In a pair of cylinders of each of the banks in which the firing is consecutively conducted at an interval corresponding to a crank angle of 90 degrees, a central angle of an exhaust cam provided for one cylinder in which the firing is conducted later is larger than that of an exhaust cam provided for the other cylinder. In a pair of cylinders of each of the banks in which the firing is consecutively conducted at an interval corresponding to a crank angle of 270 degrees, a central angle of an exhaust cam provided for one cylinder in which the firing is conducted later is larger than that of an exhaust cam provided for the other cylinder.

公开(公告)号：US09976451B2

公开(公告)日：2018-05-22

申请号：US14902486

申请日：2014-06-30

Applicant: Benoit Laurent Philippe

Inventor： Benoit Laurent Philippe

IPC: F01L1/38 ,  F01L1/18 ,  F02B75/04 ,  F02D15/04 ,  F01L1/30 ,  F01L7/02 ,  F01L7/12 ,  F01L1/08

CPC classification number: F01L1/38 ,  F01L1/08 ,  F01L1/181 ,  F01L1/30 ,  F01L7/02 ,  F01L7/12 ,  F01L2105/00 ,  F01L2820/02 ,  F02B75/04 ,  F02B75/042 ,  F02D15/04

Abstract: There is provided an internal combustion engine, provided with a crankshaft and one or several cylinders provided on the wall thereof with exhaust ports and closed at the top by a cylinder head provided with intake ports; each cylinder accommodating an engine piston connected to the crankshaft and a coaxial auxiliary piston opposite the engine piston, defining an intake chamber and a combustion chamber; said auxiliary piston axially determining on the side of the combustion chamber a housing that communicates with the intake chamber via transfer ports, the housing of which includes a secondary piston which opens and closes the transfer ports in a back-and-forth movement between a rear position and a forward position.

公开(公告)号：US09945268B2

公开(公告)日：2018-04-17

申请号：US15074455

申请日：2016-03-18

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Keiju Tomoda ,  Yoshiaki Miyazato

IPC: F01L1/04 ,  F01L1/08 ,  F01L1/053 ,  F01L13/00 ,  F01L1/18

CPC classification number: F01L1/08 ,  F01L1/053 ,  F01L1/185 ,  F01L13/0005 ,  F01L2013/001 ,  F01L2013/10 ,  F01L2105/00

Abstract: A variable valve apparatus for an internal combustion engine according to the present invention comprises a cam base member rotating with rotation of a camshaft and a cam lobe member. The cam lobe member is movable to the cam base member, between a projecting position where the cam part radially projects and a retreat position where the cam part is retreated. A resilient member urges the cam lobe member toward the projecting position. A movement control apparatus includes a drive member provided for driving the cam lobe member, and the drive member is fixed to the cam lobe member. When the cam lobe member is in a non-fixing state to the cam base member, the cam lobe member is moved from the projecting position to the retreat position with the drive member being pressed.

公开(公告)号：US20180058270A1

公开(公告)日：2018-03-01

申请号：US15677746

申请日：2017-08-15

Applicant: SUZUKI MOTOR CORPORATION

Inventor： Koichi TANAKA ,  Kunio ARASE

IPC: F01L1/22 ,  F01L1/08

CPC classification number: F01L1/22 ,  F01L1/047 ,  F01L1/053 ,  F01L1/08 ,  F01L1/18 ,  F01L1/181 ,  F01L1/185 ,  F01L1/26 ,  F01L1/46 ,  F01L1/462 ,  F01L2001/0535 ,  F01L2105/00 ,  F01L2250/02 ,  F01L2810/03

Abstract: An overhead valve actuation mechanism for an engine includes a cylinder head, a camshaft that is rotatably supported by the cylinder head, includes one or a plurality of valve cams, and operates opening and closing of an air intake side or air exhaust side valve via the valve cam, a rocker arm that is swung by the valve cam of the camshaft and acts on the valve to open and close the valve, and a rocker arm shaft that is supported by the cylinder head and swingably supports the rocker arm. The rocker arm shaft includes a supporting portion supporting the rocker arm and a fixed shaft portion supported by the cylinder head. The supporting portion is formed such that a rotation axis of the rocker arm parallelly and slightly separates with respect to a center axis line of the fixed shaft portion.