公开(公告)号：US20170321574A1

公开(公告)日：2017-11-09

申请号：US15146943

申请日：2016-05-05

Applicant: Schaeffler Technologies AG & Co. KG

Inventor： Faheem Ahmed ,  Colin Foster

IPC: F01L1/18 ,  F16H53/06

CPC classification number: F01L1/18 ,  F01L1/185 ,  F01L13/0005 ,  F01L13/0036 ,  F01L2001/186 ,  F01L2105/00 ,  F16H53/06

Abstract: A coupling pin anti-rotation arrangement is provided for a switchable roller finger follower within a valve train of an internal combustion engine. The coupling pin, located on one of the levers, has a first locking surface, and includes at least one coupling pin-side anti-rotation flat; the other lever, with a second locking surface, is configured with at least one lever-side anti-rotation flat. The at least one lever-side anti-rotation flat slidably guides the at least one coupling pin-side anti-rotation flat such that the first locking surface is aligned with the second locking surface throughout longitudinal displacement of the coupling pin within a coupling pin bore. The coupling pin anti-rotation arrangement is adaptable to various switchable roller finger follower designs that incorporate different valve lift strategies and lever configurations.

公开(公告)号：US09803515B2

公开(公告)日：2017-10-31

申请号：US14978594

申请日：2015-12-22

Applicant: OTICS CORPORATION

Inventor： Hideki Oka

IPC: F01L1/14

CPC classification number: F01L1/14 ,  F01L2103/00 ,  F01L2105/00 ,  F01L2105/02

Abstract: A roller lifter includes a first member having a pair of opposed portions opposed to each other and a connecting part connecting the opposed portions to each other, a shaft mounted between the opposed portions to rotatably support a roller brought into contact with a cam, a second member independent of the first member and having a cylindrical portion and an elastic mount elastically held between the opposed portions and the cylindrical portion to mount the first member to the second member.

公开(公告)号：US20170298786A1

公开(公告)日：2017-10-19

申请号：US15485572

申请日：2017-04-12

Applicant: MAN Truck & Bus AG

Inventor： Hai-Son Pham

IPC: F01L1/18 ,  F01L1/20 ,  F01L1/047 ,  F01L1/08 ,  F16H37/12 ,  F01L1/46

CPC classification number: F01L1/181 ,  F01L1/047 ,  F01L1/08 ,  F01L1/20 ,  F01L1/2411 ,  F01L1/267 ,  F01L1/462 ,  F01L13/0063 ,  F01L2105/00 ,  F16H37/122

Abstract: The present disclosure relates to a variable valve drive for a lifting valve, in particular for a charge-exchange valve of an internal combustion engine, which is periodically movable between a closed position and an open position indirectly by way of a cam via a rocker lever. The variable valve drive includes a switchable rocker lever arrangement for the actuation of the lifting valve, having a transmission rocker lever and a valve rocker lever which are mounted pivotably on different rocker lever axles which are each parallel to the camshaft axis.

公开(公告)号：US20170292416A1

公开(公告)日：2017-10-12

申请号：US15469426

申请日：2017-03-24

Applicant: OTICS CORPORATION

Inventor： Masatoshi SUGIURA ,  Naoki Hiramatsu

IPC: F01L13/00 ,  F01L1/18

CPC classification number: F01L13/0026 ,  F01L1/18 ,  F01L1/185 ,  F01L13/0005 ,  F01L13/0036 ,  F01L2001/186 ,  F01L2105/00

Abstract: A variable valve mechanism includes a first cam and a second cam, a main arm that drives a valve when swinging, a first sub arm that swings when pressed by the first cam, a second sub arm that swings when pressed by the second cam, and a switch device. The switch device includes a first switch pin that moves between a first coupled position between the main arm and the first sub arm and a first uncoupled position, and a second switch pin that moves between a second coupled position between the main arm and the second sub arm and a second uncoupled position. Both switch pins are arranged so as to be displaced from each other in positions where these switch pins do not overlap at least during a base circle phase in which base circles of both cams act.

公开(公告)号：US20170292413A1

公开(公告)日：2017-10-12

申请号：US15435584

申请日：2017-02-17

Applicant: OTICS CORPORATION

Inventor： Naoyuki YAMANE ,  Kiyoshi MASEGI ,  Kimihiko TODO

IPC: F01L1/18 ,  F01L1/047

CPC classification number: F01L1/181 ,  F01L1/047 ,  F01L1/185 ,  F01L1/2405 ,  F01L1/462 ,  F01L2103/01 ,  F01L2105/00 ,  F01L2105/02 ,  Y10T74/20582 ,  Y10T74/20882

Abstract: A rocker arm includes a roller, a support shaft coaxially mounted in the roller and having a first end portion and a second end portion, walls including at least a first wall and a second wall arranged along the rotation axis and opposite each other with having the roller therebetween, the first wall having a first through hole through which the first end portion is inserted and the second wall having a second through hole through which the second end portion is inserted, and plate portions including at least a first plate portion and a second plate portion arranged opposite each other with having the first wall, the second wall and the support shaft therebetween. The first plate portion is in contact with a first end surface of the first end portion and the second plate portion is in contact with a second end surface of the second end portion.

公开(公告)号：US20170284236A1

公开(公告)日：2017-10-05

申请号：US15624365

申请日：2017-06-15

Applicant: Schaeffler Technologies AG & Co. KG

Inventor： Faheem AHMED ,  Colin FOSTER ,  David CHANDLER ,  John WHITTON ,  Debora MANTHER ,  Pradeep Mohan MOHAN DAS ,  Sumukha NAGARAJ

IPC: F01L1/24 ,  F01L1/18

CPC classification number: F01L1/24 ,  F01L1/053 ,  F01L1/18 ,  F01L1/181 ,  F01L1/2416 ,  F01L1/46 ,  F01L13/0005 ,  F01L2001/186 ,  F01L2013/001 ,  F01L2105/00 ,  F01M9/105 ,  F01M9/107 ,  F02F7/0068

Abstract: A switchable valve train assembly including a carrier housing defining a hydraulic circuit, a supply assembly, a plurality of rocker shafts, a plurality of separators, and a plurality of rocker arm assemblies is provided. Each one of the plurality of separators divides the rocker shafts into (1) a first chamber extending between a first chamber axial end and the separator, and (2) a second chamber extending between a second chamber axial end and the separator. The plurality of separators each include an orifice defined between the first chamber and the second chamber that provides fluid connection between the first chamber and the second chamber. Locking assemblies of the rocker arm assemblies are selectively actuated based on the supply assembly. The separators ensure that hydraulic fluid within the hydraulic fluid is de-aerated and that the second chambers remain primed with hydraulic fluid for faster actuation of the locking assemblies.

公开(公告)号：US20170284233A1

公开(公告)日：2017-10-05

申请号：US15508290

申请日：2015-04-14

Applicant: Mitsuhiro Maehara

Inventor： Mitsuhiro Maehara

IPC: F01L1/18

CPC classification number: F01L1/181 ,  F01L1/18 ,  F01L1/185 ,  F01L2101/00 ,  F01L2105/00

Abstract: A roller-type rocker arm had a function for transmitting a rotational motion of a cam to an intake and exhaust valve. The roller-type rocker arm includes a roller shaft, an inner ring roller slidably attached to an outer circumference surface of the roller shaft, and an outer ring roller slidably attached to an outer circumference surface of the inner ring roller. The inner ring roller is made of a resin material.

公开(公告)号：US20170276027A1

公开(公告)日：2017-09-28

申请号：US15466850

申请日：2017-03-22

Applicant: Mahle International GmbH

Inventor： Patrick Altherr

IPC: F01L1/08 ,  F01L1/22 ,  F01L1/047

CPC classification number: F01L1/08 ,  F01L1/047 ,  F01L1/053 ,  F01L1/18 ,  F01L1/22 ,  F01L13/0036 ,  F01L2013/0052 ,  F01L2013/101 ,  F01L2105/00

Abstract: A valve train for an internal combustion engine may include a camshaft and a cam follower. The valve train may also include two first cams arranged on the camshaft in a torque-proof manner and at an axial distance from one another. Each of the two first cams may include an identical first cam contour. The valve train may also include two second cams arranged on the camshaft in a torque-proof manner and at an axial distance from one another. Each of the two second cams may also include an identical second cam contour. The two first cams and the two second cams may alternate in an axial direction on the camshaft. The cam follower may be axially adjustable between a first and second position, and may be drivingly connected to the two first cams in the first position and drivingly connected to the two second cams in the second position.

公开(公告)号：US09771838B2

公开(公告)日：2017-09-26

申请号：US14558650

申请日：2014-12-02

Applicant: HYUNDAI MOTOR COMPANY

Inventor： Sangyun Kim

IPC: F01L9/02 ,  F01L1/344 ,  F01L1/047

CPC classification number: F01L1/3442 ,  F01L1/047 ,  F01L1/185 ,  F01L9/02 ,  F01L13/0036 ,  F01L2013/105 ,  F01L2105/00

Abstract: A variable valve lift apparatus includes a lever body having a set length for a lever motion. One end of the lever body is connected with a hydraulic pressure supply portion and another end thereof is connected with the valve. A rotation shaft is disposed such that a width direction of the lever body is a length direction of the rotation shaft. A roller rotates around the rotation shaft. A high cam is disposed at the camshaft to rotate together with the camshaft and has a lobe shape for rolling-contact the roller to realize a high lift. A low cam is disposed at the camshaft to rotate together with the camshaft and has a lobe shape for rolling-contacting the roller to realize a low lift. The roller is disposed to slide along the length direction of the rotation shaft and selectively rolling-contact with the high cam or the low cam by sliding.

公开(公告)号：US09765656B2

公开(公告)日：2017-09-19

申请号：US14740011

申请日：2015-06-15

Applicant: Ford Global Technologies, LLC

Inventor： Theodore Beyer ,  Charles Joseph Patanis ,  Jon Michael LaCroix ,  Joseph Keenan ,  Jonathan Denis Crowe

IPC: F01L9/02 ,  F01L13/00 ,  F01L1/047 ,  F01L1/18 ,  F01L1/24 ,  F02F1/24 ,  F01L1/053

CPC classification number: F01L13/0005 ,  F01L1/047 ,  F01L1/18 ,  F01L1/2405 ,  F01L9/02 ,  F01L2001/0476 ,  F01L2001/0537 ,  F01L2001/054 ,  F01L2001/186 ,  F01L2013/001 ,  F01L2105/00 ,  F02F1/24

Abstract: Methods and systems are provided for deactivating a valve actuation mechanism. In one example, a system may include a hydraulic gallery that may deliver a restricted flow of hydraulic fluid from a hydraulic flow restrictor to a pressure relief valve within a valve deactivation oil control valve, and during a second condition may deliver an unrestricted flow of hydraulic fluid from the valve deactivation oil control valve to the hydraulic flow restrictor. The hydraulic flow restrictor may comprise two vertical bores within the camshaft carrier that are fluidically coupled via a restrictive groove on the bottom surface of the camshaft carrier.