公开(公告)号：US20180142583A1

公开(公告)日：2018-05-24

申请号：US15863901

申请日：2018-01-06

Applicant: Eaton Corporation

Inventor： Petr Liskar ,  Jiri Cecrle ,  Dale Arden Stetch ,  Michael J. Campbell ,  Tomas Drabek ,  James Edward McCarthy, JR. ,  Austin Robert Zurface ,  Robert Philip Benjey ,  Eric John Yankovic ,  Brian Karl Vandeusen ,  Nicholas Peter Gillette ,  Michael James Stanton ,  Thomas Michael Tembreull ,  Anthony Leon Spoor

IPC: F01L1/22 ,  F01L1/053 ,  F01L1/18 ,  F01L13/00

CPC classification number: F01L1/22 ,  F01L1/053 ,  F01L1/181 ,  F01L1/185 ,  F01L1/2405 ,  F01L3/24 ,  F01L13/0005 ,  F01L13/0036 ,  F01L2001/0535 ,  F01L2001/186 ,  F01L2013/001 ,  F01L2013/101 ,  F01L2105/00 ,  F01L2201/00

Abstract: A valvetrain for an internal combustion engine of the type that has a combustion chamber, a moveable valve having a seat formed in the combustion chamber, and a camshaft includes a rocker arm assembly, a pivot providing a fulcrum for a rocker arm of the rocker arm assembly, and a latch assembly. An electrical device mounted to the rocker arm assembly receives power or communicates through a circuit that includes an electrical connection formed by abutment between surfaces of two distinct parts. The rocker arm assembly is operative to move one of the two abutting surfaces relative to the other in response to actuation of the cam follower. Forming an electrical connection through abutting surfaces that are free to undergo relative motion may reduce or eliminate the need to run wires to a mobile portion of the rocker arm assembly.

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：US20180100443A1

公开(公告)日：2018-04-12

申请号：US15379087

申请日：2016-12-14

Applicant: Hyundai Motor Company

Inventor： Kyung Mo Kim

IPC: F02D13/02 ,  F01L1/053 ,  F01L1/18 ,  F01L13/00

CPC classification number: F02D13/0207 ,  F01L1/053 ,  F01L1/181 ,  F01L1/20 ,  F01L1/26 ,  F01L1/267 ,  F01L1/356 ,  F01L13/0015 ,  F01L13/0026 ,  F01L2001/0476 ,  F01L2001/0535 ,  F01L2013/103 ,  F01L2105/00

Abstract: A continuous variable valve duration system may include a camshaft, and a first cam portion including a first cam. The camshaft is inserted in the first cam portion. A relative phase angle of the first cam with respect to the camshaft is variable. The system may further include an inner bracket transmitting rotation of the cam shaft to the first cam portion, a slider housing in which the inner bracket is rotatably inserted and movable along a predetermined first direction, a rocker shaft, a first rocker arm rotatably disposed to the rocker shaft of which a first end contacts with the first cam and of which a second end is connected to a first valve, an upper housing connected with the slider housing and relatively movable with respect to the slider housing along a second direction vertical to the first direction and a control portion selectively moving the upper housing.

公开(公告)号：US20180094553A1

公开(公告)日：2018-04-05

申请号：US15284946

申请日：2016-10-04

Applicant: Electro-Motive Diesel, Inc.

Inventor： Adarsh Gopinathan Nair ,  Mathias George Klemp, JR. ,  Laura E. Rasmussen

IPC: F01L1/26 ,  F01L1/18 ,  F01L1/14 ,  F01L1/32

CPC classification number: F01L1/26 ,  F01L1/181 ,  F01L1/2411 ,  F01L1/32 ,  F01L2105/00

Abstract: A valve bridge for a valve system of an engine includes one or more valves and a valve rotator coupled to the valves. The valve bridge includes one or more end portions, a seat formed at the one or more end portions to receive the one or more valves, and an extension portion that extends outwardly from the one or more end portions. The extension portion defines a cavity configured to accommodate the valve rotator, and guide the valve bridge with the valve rotator during each opening and closing of the one or more valves relative to the engine.

公开(公告)号：US09933062B2

公开(公告)日：2018-04-03

申请号：US14867009

申请日：2015-09-28

Applicant: Nicolas Berruet ,  François Champalou ,  Samuel Viault

Inventor： Nicolas Berruet ,  François Champalou ,  Samuel Viault

IPC: G05G1/00 ,  F16H53/06 ,  F01L1/18 ,  F02M59/10 ,  F01L1/14 ,  F04B1/04

CPC classification number: F16H53/06 ,  F01L1/143 ,  F01L1/18 ,  F01L2105/00 ,  F01L2810/02 ,  F02M59/102 ,  F04B1/0417 ,  F04B1/0426

Abstract: A mechanical system forms a cam follower or a rocker arm. The mechanical system comprises: a support element, a pin extending between two opposite ends along a first axis and supported by the support element, and a roller adapted to receive the pin. The roller being mounted on pin, movable in rotation relative to the pin around the first axis and adapted to roll on a cam. The support element comprises two separate parts, generally semi-cylindrical, each having a contact face, in contact with one other, and a holding feature for maintaining parts assembled together.

公开(公告)号：US20180058275A1

公开(公告)日：2018-03-01

申请号：US15790956

申请日：2017-10-23

Applicant: Eaton Corporation

Inventor： Andrei Dan Radulescu ,  Austin Robert Zurface ,  James R. Sheren ,  Anthony L. Spoor ,  Luigi Lia ,  Philip Michael Kline

IPC: F01L13/00 ,  F01L1/18

CPC classification number: F01L13/0021 ,  F01L1/18 ,  F01L1/185 ,  F01L1/2405 ,  F01L3/08 ,  F01L3/24 ,  F01L13/0005 ,  F01L13/0015 ,  F01L13/0036 ,  F01L2001/0537 ,  F01L2001/186 ,  F01L2001/467 ,  F01L2013/101 ,  F01L2101/00 ,  F01L2105/00 ,  F01L2800/18 ,  F01L2810/02 ,  F01L2820/01 ,  F01L2820/033 ,  F01L2820/04 ,  F01L2820/045 ,  Y10T74/20882 ,  Y10T74/2107

Abstract: A system includes a rocker arm assembly for operative engagement with a first and second cam. The assembly includes a first arm for operatively engaging the first cam for a first desired lift profile, a second arm for operatively engaging the second cam for a second desired lift profile, where the second arm includes a latch to engage the second arm with the first arm. The latch is responsive to supplied oil pressure and release oil pressure to switch between lift profiles. The system includes the latch coupled to the supplied or released oil pressure to engage the arms before the first and second arms are engaged with the base circle portion of each of the respective first and second cams.

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.

公开(公告)号：US20180058269A1

公开(公告)日：2018-03-01

申请号：US15677798

申请日：2017-08-15

Applicant: SUZUKI MOTOR CORPORATION

Inventor： Koichi TANAKA ,  Kunio ARASE

IPC: F01L1/18 ,  F01L1/053 ,  F02F7/00 ,  F02B61/02

CPC classification number: F01L1/185 ,  F01L1/053 ,  F01L1/181 ,  F01L1/26 ,  F01L1/46 ,  F01L1/462 ,  F01L2001/0535 ,  F01L2105/00 ,  F01L2250/02 ,  F01L2810/03 ,  F02B61/02 ,  F02F7/006

Abstract: An overhead valve actuation mechanism for an engine includes a camshaft that is rotatably supported by the cylinder head and includes one or a plurality of valve cams. The camshaft operates opening and closing of an intake valve and an exhaust valve via the valve cam. The only one camshaft is disposed within the one cylinder head. The camshaft has an axis center biased to a side of the exhaust valve with respect to a cylinder axis line as viewed from an axial direction of the camshaft.

公开(公告)号：US20180051601A1

公开(公告)日：2018-02-22

申请号：US15240565

申请日：2016-08-18

Applicant: Delphi Technologies, Inc.

Inventor： Matthew G. Foster ,  Keith A. Confer ,  Wayne R. Moore

IPC: F01L13/00 ,  F01L1/08 ,  F02D13/06

CPC classification number: F01L13/0005 ,  F01L1/053 ,  F01L1/185 ,  F01L1/2405 ,  F01L1/462 ,  F01L13/0015 ,  F01L13/0036 ,  F01L2013/001 ,  F01L2105/00 ,  F01L2800/00 ,  F02D13/06 ,  F02D41/0087 ,  F02D2041/0012

Abstract: A cylinder deactivation system includes an intake cam follower assembly, an exhaust cam follower assembly, an exhaust cam, and a controller. The intake cam follower assembly is used to open an intake engine valve and is switchable to operate in one of an active state and a deactive state. The exhaust cam follower assembly is used to open an exhaust engine valve and is switchable to operate in one of a primary lift state and a secondary lift state. The exhaust cam includes a primary lift cam lobe and a secondary lift cam lobe and is used to actuate the exhaust cam follower assembly in the primary lift state and in the secondary lift state. The controller is used to open the exhaust engine valve during the deactive combustion cycle in advance of the opening of the intake engine valve that occurs during the subsequent active combustion cycle.