公开(公告)号：US20190072010A1

公开(公告)日：2019-03-07

申请号：US15834755

申请日：2017-12-07

Applicant: Hyundai Motor Company ,  Kia Motors Corporation

Inventor： Soo Hyung Woo ,  Heechang Oh ,  Seung Kook Han ,  Ju Hun Lee ,  Wootae Kim

IPC: F01L1/344 ,  F01L1/053

CPC classification number: F01L1/34413 ,  F01L1/053 ,  F01L1/08 ,  F01L1/185 ,  F01L13/0036 ,  F01L2001/0473 ,  F01L2013/0052 ,  F01L2013/101 ,  F01L2105/00 ,  F01L2201/00 ,  F02D13/0211 ,  F02D13/0215 ,  F02D13/0261

Abstract: 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.

公开(公告)号：US20180283235A1

公开(公告)日：2018-10-04

申请号：US15938130

申请日：2018-03-28

Applicant: Quest Engines, LLC

Inventor： Elario Dino Dalmas, II ,  Roy A. Blom

IPC: F01L3/08

CPC classification number: F01L3/085 ,  F01L1/08 ,  F01L1/185 ,  F01L1/2405 ,  F01L1/28 ,  F01L1/462 ,  F01L13/0015 ,  F01L13/0036 ,  F01L2001/0537 ,  F01L2103/00 ,  F01L2105/00 ,  F01M3/00 ,  F01M9/06 ,  F01M11/0004 ,  F01M11/0408 ,  F01M13/00 ,  F02B33/04 ,  F02B33/12 ,  F02F1/183 ,  F02F1/242 ,  F02F3/022 ,  F02F3/027 ,  F02F3/28

Abstract: Internal combustion engines having multi-stage telescoping poppet valves in lieu of conventional poppet valves are disclosed. The engines may have pistons with a skirt with a field of pockets that provide a ringless, non-lubricated, seal equivalent. The piston heads may include one or more depressions and may be domed to facilitate the movement of air/charge in the cylinder. The engines may also have non-circular, preferably rectangular, cross-section pistons and cylinders. The engines also may include a split crankshaft. The engines may use the pumping motion of the engine piston to supercharge the cylinder with air/charge. The engines also may operate in an inverted orientation in which the piston is closer to the local gravitationally dominant terrestrial body's center of gravity at top dead center position than at bottom dead center position.

公开(公告)号：US20180252306A1

公开(公告)日：2018-09-06

申请号：US15446664

申请日：2017-03-01

Applicant: Schaeffler Technologies AG & Co. KG

Inventor： Faheem AHMED ,  Colin FOSTER ,  Michael KUGLER ,  Philipp STREIT

IPC: F16H53/06

CPC classification number: F16H53/06 ,  F01L1/04 ,  F01L1/12 ,  F01L1/18 ,  F01L1/185 ,  F01L1/24 ,  F01L1/2405 ,  F01L2001/187 ,  F01L2105/00 ,  Y10T74/20882

Abstract: A clip for a switchable roller finger follower that includes a retainer for a hydraulic lash adjuster, and an anti-rotation feature that prevents rotation of a coupling pin is provided. The clip includes a first leg arranged adjacent to a dome-shaped recess on a bottom surface of an outer lever of the switchable roller finger follower that includes a retainer for the hydraulic lash adjuster, and a second leg of the clip includes an anti-rotation bar that extends laterally across a part of the coupling pin and prevents rotation of the coupling pin. A switchable finger follower with the clip is also provided.

公开(公告)号：US20180216522A1

公开(公告)日：2018-08-02

申请号：US15418398

申请日：2017-01-27

Applicant: Caterpillar Inc.

Inventor： Craig P. Hittle

IPC: F02B75/22 ,  F02F7/00 ,  F01L1/18 ,  F02M63/00 ,  F01L1/047 ,  F01L1/14

CPC classification number: F02B75/22 ,  F01L1/026 ,  F01L1/047 ,  F01L1/146 ,  F01L1/18 ,  F01L1/181 ,  F01L2001/054 ,  F01L2105/00 ,  F02B67/04 ,  F02B2075/1848 ,  F02B2075/1864 ,  F02F7/0053 ,  F02M63/001

Abstract: An internal combustion engine includes a cylinder case that includes a first geartrain disposed on a front end of the cylinder case and a second geartrain disposed on a rear end of the cylinder case. The first geartrain drives a first camshaft, and the second geartrain drives a second camshaft, the first and second camshafts having respective rotational axes that are parallel.

公开(公告)号：US20180195420A1

公开(公告)日：2018-07-12

申请号：US15402576

申请日：2017-01-10

Applicant: Schaeffler Technologies AG & Co. KG

Inventor： John Stallmann

IPC: F01L1/24 ,  F01L1/245 ,  F01L1/46

CPC classification number: F01L1/2416 ,  F01L1/08 ,  F01L1/143 ,  F01L1/146 ,  F01L1/2405 ,  F01L1/2422 ,  F01L1/245 ,  F01L9/023 ,  F01L13/065 ,  F01L2101/00 ,  F01L2105/00

Abstract: A lash compensator for a valve train component of an internal combustion engine is provided that includes an end-cap arranged within a reverse-spring control valve assembly of an axially moveable piston. The piston has a first reservoir and an inner radial wall configured with a through-aperture. The reverse-spring control valve assembly has a control valve housing, a bias spring, an end-cap, and a closing body. The end-cap is configured with a cupped end; an inner side of the cupped end receives a second lower end of the bias spring, and an outer side of the cupped end engages an upper portion of the closing body. The end-cap minimizes or eliminates the variation in flow resistance caused by a variation in end-coil geometry of the second lower end of the bias spring.

公开(公告)号：US20180187580A1

公开(公告)日：2018-07-05

申请号：US15889545

申请日：2018-02-06

Applicant: Pacbrake Company

Inventor： Vincent Meneely ,  Robert Price

IPC: F01L13/06 ,  F01L1/26 ,  F01L1/18 ,  F02D13/04

CPC classification number: F01L13/065 ,  F01L1/08 ,  F01L1/146 ,  F01L1/18 ,  F01L1/181 ,  F01L1/20 ,  F01L1/26 ,  F01L13/06 ,  F01L2001/054 ,  F01L2013/105 ,  F01L2105/00 ,  F01L2820/01 ,  F02B75/02 ,  F02B2075/027 ,  F02D13/04

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：US10006317B2

公开(公告)日：2018-06-26

申请号：US14869291

申请日：2015-09-29

Applicant: Caterpillar Inc.

Inventor： Indrajith Kizhakkethara ,  Gopinath Baskaran ,  Ashwin A. Hattiangadi ,  Rong Qu ,  Kevin W. Redinbo

IPC: F01L1/14 ,  F01L1/18 ,  F01L1/46 ,  F01L3/00 ,  F01L1/20 ,  F01L1/26 ,  F01L1/32 ,  F01L3/08 ,  F01L3/10 ,  F01L3/22 ,  F01L1/047

CPC classification number: F01L1/146 ,  F01L1/18 ,  F01L1/181 ,  F01L1/20 ,  F01L1/26 ,  F01L1/32 ,  F01L1/46 ,  F01L1/462 ,  F01L3/00 ,  F01L3/08 ,  F01L3/10 ,  F01L3/22 ,  F01L2001/054 ,  F01L2103/01 ,  F01L2105/00 ,  F01L2820/01

Abstract: A valve actuation system is disclosed for use with an internal combustion engine. The valve actuation system may have a rocker shaft, a rocker arm pivotally mounted on the rocker shaft, at least one cam follower and a pushrod connecting the at least one cam follower to the rocker arm. The valve actuation system may also have a plurality of gas exchange valves, and a bridge connecting the rocker arm to the valves. The valve actuation system may further have at least one spring disposed around each of the valves and configured to bias each of the valves toward closed positions, and a rotocoil configured to rotatably connect the at least one spring to each of the valves. The rotocoil may have an internal chamfer at a bridge end with an angle of about 26-28°. The at least one spring may have an assembled load of about 750-850 N.

公开(公告)号：US10001037B2

公开(公告)日：2018-06-19

申请号：US15297351

申请日：2016-10-19

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Yuta Nishimura ,  Atsuhisa Tamano ,  Yu Yokoyama ,  Toshiyuki Yano ,  Toru Sakuma

IPC: F01L1/46 ,  F01L1/344 ,  F01L1/26 ,  F01L1/047 ,  F01L1/18 ,  F01L1/053 ,  F01L13/00

CPC classification number: F01L1/344 ,  F01L1/185 ,  F01L1/267 ,  F01L1/46 ,  F01L2001/0473 ,  F01L2001/0537 ,  F01L2001/34496 ,  F01L2013/0052 ,  F01L2013/101 ,  F01L2105/00

Abstract: In a variable valve mechanism, a guide groove includes guide portions provided on respective side surfaces of the guide groove in a width direction, the guide portions projecting so as to face each other; a cam unit is slid toward a first side by relatively moving a shift pin toward a second side with use of the guide portion on the first side, and the cam unit is slid toward the second side by relatively moving the shift pin toward the first side with use of the guide portion on the second side; the guide portion on the first side is provided in an immovable piece, and the guide portion on the second side is provided in a movable piece; the movable piece is displaceable between a first position and a second position: and a first urging member configured to urge the movable piece toward the first position is provided.

公开(公告)号：US20180163575A1

公开(公告)日：2018-06-14

申请号：US15668498

申请日：2017-08-03

Applicant: Hyundai Motor Company ,  Kia Motors Corporation

Inventor： Kyung Mo KIM

IPC: F01L1/053 ,  F01L1/26 ,  F01L1/18

CPC classification number: F01L1/053 ,  F01L1/08 ,  F01L1/18 ,  F01L1/181 ,  F01L1/267 ,  F01L1/356 ,  F01L13/0015 ,  F01L13/0026 ,  F01L2001/0473 ,  F01L2001/0476 ,  F01L2001/0535 ,  F01L2013/103 ,  F01L2105/00 ,  F01L2820/01

Abstract: A continuous variable valve duration system may include a camshaft, a first cam portion including a first cam, of which the camshaft is inserted therein, an internal bracket transmitting rotation of the camshaft to the first cam portion, a control shaft parallel to the camshaft, a slider housing in which the internal bracket is rotatably inserted, on which a control groove where the control shaft is inserted into is formed, and the slider housing movable vertical to the camshaft, a guider configured for guiding movement of the slider housing, a rocker shaft, a first rocker arm rotatably disposed to the rocker shaft of which a first end portion contacts with the first cam and of which a second end portion is connected to a first valve and a control portion selectively rotating the control shaft for changing a position of the slider housing.

公开(公告)号：US09982767B2

公开(公告)日：2018-05-29

申请号：US14377471

申请日：2012-02-08

Applicant: Gary Schick

Inventor： Gary Schick

IPC: F16H53/06 ,  F01L1/12 ,  F01L1/14

CPC classification number: F16H53/06 ,  F01L1/12 ,  F01L1/14 ,  F01L1/143 ,  F01L2101/00 ,  F01L2105/00 ,  F01L2105/02 ,  F01L2107/00 ,  Y10T74/2107

Abstract: A follower mechanism movable along an axis within a bore including an alignment groove. The follower mechanism includes a bucket with a cylindrical inner surface and a cylindrical outer surface, and a yoke positioned at least partially within the bucket, the yoke including a bottom wall and two opposed sidewalls depending upwardly therefrom, each sidewall defining a shaft aperture. A shaft with first and second ends is received in the shaft apertures, and a roller follower is rotatably received on the shaft such that a portion of the roller follower extends axially outwardly beyond the bucket.