公开(公告)号：US20180003088A1

公开(公告)日：2018-01-04

申请号：US15654877

申请日：2017-07-20

Applicant: Eaton Corporation

Inventor： Douglas J. Nielsen ,  James E. McCarthy, JR.

IPC: F01L1/24 ,  F01L1/18 ,  F01L1/26 ,  F01L13/06

CPC classification number: F01L1/2405 ,  F01L1/181 ,  F01L1/2411 ,  F01L1/26 ,  F01L13/0036 ,  F01L13/065 ,  F01L2105/00

Abstract: An exhaust valve rocker arm assembly includes an exhaust rocker arm and a valve bridge operably associated with the rocker arm. The valve bridge includes a main body and a lever rotatably coupled to the main body. The main body is configured to engage the first exhaust valve, and the lever is configured to engage the second exhaust valve.

公开(公告)号：US20170362966A1

公开(公告)日：2017-12-21

申请号：US15623579

申请日：2017-06-15

Applicant: HONDA MOTOR CO., LTD. ,  TANAKA SEIMITSU KOGYO CO., LTD.

Inventor： Kaori Takehana ,  Masaru Izawa

IPC: F01L1/24 ,  F01L1/18

CPC classification number: F01L1/2411 ,  F01L1/14 ,  F01L1/143 ,  F01L1/181 ,  F01L1/185 ,  F01L1/2405 ,  F01L3/10 ,  F01L13/0005 ,  F01L2003/11 ,  F01L2105/00

Abstract: The variable valve actuating device (20) comprises a valve lifter (24) interposed between a swing end of a rocker arm 22 and a stem end of an engine valve (17), and a switch pin (53) slidably received in the valve lifter (24) so as to selectively abut the end surface of the valve stem as the valve lifter is actuated by a cam (21a). The swing end of the rocker arm abuts an upper end of a projection (55) projecting from the upper end of the valve lifter via an engagement feature (26b, 55a) that prevents a rotational movement of the valve lifter relative to the swing end around the axial line of the valve stem.

公开(公告)号：US20170356373A1

公开(公告)日：2017-12-14

申请号：US15429840

申请日：2017-02-10

Applicant: Ford Global Technologies, LLC

Inventor： Karen Willard ,  John Eric Rollinger ,  Robert Milton ,  Jeremy L. Russell

IPC: F02D41/00 ,  F01L13/00 ,  F01M1/02 ,  F02D17/02 ,  F01M1/16 ,  F02D41/26

CPC classification number: F02D41/0087 ,  F01L1/181 ,  F01L13/0005 ,  F01L2001/0476 ,  F01L2001/0535 ,  F01L2001/0537 ,  F01L2001/186 ,  F01L2013/001 ,  F01L2105/00 ,  F01L2250/02 ,  F01L2250/04 ,  F01L2800/00 ,  F01L2810/02 ,  F01M1/02 ,  F01M1/16 ,  F01M9/00 ,  F01M2001/0246 ,  F01M2001/083 ,  F02D17/02 ,  F02D41/0007 ,  F02D2041/0012 ,  Y02T10/144

Abstract: Systems and methods for operating an engine with an oil pump that supplies engine oil to various oil consumers in an engine are presented. In one example, a displacement of a variable displacement engine oil pump is adjusted to provide sufficient oil pressure throughout the engine, but low enough to conserve fuel.

公开(公告)号：US09840949B2

公开(公告)日：2017-12-12

申请号：US14933932

申请日：2015-11-05

Applicant: Hyundai Motor Company

Inventor： Jae Hee Jeon ,  You Sang Son

IPC: F01L13/00 ,  F01L1/18 ,  F01L1/14 ,  F01L1/24 ,  F01L1/20 ,  F01L1/26 ,  F02D41/00

CPC classification number: F01L13/0026 ,  F01L1/146 ,  F01L1/18 ,  F01L1/181 ,  F01L1/185 ,  F01L1/20 ,  F01L1/2405 ,  F01L1/267 ,  F01L13/0005 ,  F01L13/0021 ,  F01L13/0036 ,  F01L13/0063 ,  F01L2013/105 ,  F01L2105/00 ,  F02D2041/001 ,  Y02T10/18

Abstract: A valve switching apparatus includes a rocker arm coming into contact with a cam to open and close a valve along with a rotation of the cam, and an eccentric generation means provided to the rocker arm so as to allow an eccentric position to be changed by rotation thereof.

公开(公告)号：US20170314117A1

公开(公告)日：2017-11-02

申请号：US15493935

申请日：2017-04-21

Applicant: JTEKT CORPORATION

Inventor： Wataru YOSHIDA

IPC: C23C8/32 ,  C21D1/18 ,  C21D1/06 ,  C21D1/58 ,  C21D1/63 ,  C21D9/28 ,  F01L1/18

CPC classification number: C23C8/32 ,  C21D1/06 ,  C21D1/18 ,  C21D1/58 ,  C21D1/63 ,  C21D9/28 ,  C23C8/80 ,  F01L1/18 ,  F01L1/181 ,  F01L2101/00 ,  F01L2103/00 ,  F01L2105/00 ,  F01L2105/02 ,  F01L2800/18 ,  F01L2820/01

Abstract: A rolling-contact shaft member, which is made of high-carbon steel and whose outer peripheral surface serves as a rolling-contact surface that rolling-contacts a mating material, includes: a carbonitrided layer having a carbon concentration of 1.1 to 1.6 wt % and a nitrogen concentration of 0.05 to 0.6 wt % in the range from the surface to the depth of 10 μm. The rolling-contact shaft member has a Vickers hardness of 700 to 840 HV at the outer peripheral surface and has a Vickers hardness of 600 HV or less in its central portion. A maximum value of an absolute value of a gradient of a change in the Vickers hardness from the outer peripheral surface to the central portion is 100 to 340 HV/mm.

公开(公告)号：US09803516B2

公开(公告)日：2017-10-31

申请号：US15060623

申请日：2016-03-04

Applicant: Caterpillar Inc.

Inventor： Jeremy D. Byrd ,  Kevin W. Redinbo ,  Bryce L. Tiller

IPC: F01L1/14

CPC classification number: F01L1/146 ,  F01L1/14 ,  F01L1/16 ,  F01L1/181 ,  F01L1/26 ,  F01L2001/054 ,  F01L2101/00 ,  F01L2105/00 ,  F01L2107/00

Abstract: An internal combustion engine having a valve lifter assembly is disclosed. The internal combustion engine comprising an engine head having at least two wells adapted to receive at least one valve lifter, the at least one valve lifter includes a flat surface, at least one spacer installed within the engine head having a first surface, a hollow portion, and a second surface, the first surface is tapered with respect to a vertical axis of the at least one spacer, and a tie-bar plate for coupling the at least one spacer using head bolts. The at least one spacer and the at least one valve lifter are operatively arranged during operation in such a way that the flat surface of the at least one valve lifter faces the first surface of the at least one spacer to prevent rotation of the at least one valve lifter.

公开(公告)号：US20170284232A1

公开(公告)日：2017-10-05

申请号：US15453181

申请日：2017-03-08

Applicant: OTICS CORPORATION

Inventor： Naoyuki YAMANE ,  Kiyoshi MASEGI ,  Kimihiko TODO

IPC: F01L1/18 ,  F01L1/20 ,  B21D53/84 ,  F01L1/053

CPC classification number: F01L1/181 ,  B21D53/84 ,  F01L1/053 ,  F01L1/185 ,  F01L1/20 ,  F01L1/2405 ,  F01L3/08 ,  F01L2103/00 ,  F01L2103/01 ,  F01L2105/00

Abstract: A rocker arm includes a pair of sidewalk disposed along a heightwise direction so as to be opposed to each other. The sidewalk define a space to house a roller and have opposed portions extending in the heightwise direction relative to adjacent portions which are adjacent to the opposed portions. The opposed portions have thinner portions having smaller thicknesses than the adjacent portions.

公开(公告)号：US20170276089A1

公开(公告)日：2017-09-28

申请号：US15440203

申请日：2017-02-23

Applicant: HONDA MOTOR CO., LTD.

Inventor： Hodaka MUKOHARA

IPC: F02F1/24 ,  F02F7/00 ,  F01L1/18 ,  F01L1/053

CPC classification number: F02F1/242 ,  B61G1/02 ,  F01L1/047 ,  F01L1/053 ,  F01L1/12 ,  F01L1/18 ,  F01L1/181 ,  F01L1/26 ,  F01L2001/0535 ,  F01L2105/00 ,  F02F7/006 ,  F02F2007/0063

Abstract: An engine power unit includes a crankcase, a cylinder body, and a cylinder head sequentially stacked and fastened with each other. A cam shaft holder is fastened to the cylinder head to rotatably support a cam shaft of an engine valve operating mechanism. A cylinder head cover covers the cylinder head and the cam shaft holder. Fastening bolts penetrate the cylinder head cover and the cam shaft holder to be screwed into the cylinder head. Pressing surfaces are formed on the inner surface of the cylinder head cover. The pressing surfaces are abutted against and press the cam shaft holder to the cylinder head. Thus, rigidity around the cylinder head is enhanced, and a weight reduction of the power unit is achieved.

公开(公告)号：US20170276035A1

公开(公告)日：2017-09-28

申请号：US15512151

申请日：2014-09-18

Applicant: Eaton SRL

Inventor： Majo Cecur ,  Marco Alessandria ,  Nicola Andrisani

IPC: F01L13/06 ,  F01L1/24 ,  F01L1/18

CPC classification number: F01L13/06 ,  F01L1/18 ,  F01L1/181 ,  F01L1/24 ,  F01L1/2416 ,  F01L13/065 ,  F01L2760/004 ,  F02D13/04

Abstract: An exhaust valve rocker arm assembly operable in a combustion engine mode and an engine braking mode can include a rocker shaft and a rocker arm. The rocker shaft can define a pressurized oil supply conduit. The rocker arm can receive the rocker shaft and is configured to rotate around the rocker shaft. The rocker arm can have an oil supply passage defined therein. A valve bridge can engage a first exhaust valve and a second exhaust valve. A hydraulic lash adjuster assembly can include first and second plunger bodies, the first plunger body can engage the valve bridge. A pressure relief valve assembly can be configured to selectively release oil from the hydraulic lash adjuster assembly.

公开(公告)号：US09732682B2

公开(公告)日：2017-08-15

申请号：US13934140

申请日：2013-07-02

Applicant: Ford Global Technologies, LLC

Inventor： Torsten Tietze ,  Christian Winge Vigild ,  Andreas Kuske ,  Wilbert Hemink

IPC: F02B69/06 ,  F02D41/00 ,  F02D41/30 ,  F01L1/38 ,  F01L1/08 ,  F01L1/18 ,  F01L13/00 ,  F02M26/06 ,  F01L1/14 ,  F01L1/053

CPC classification number: F02D41/0002 ,  F01L1/08 ,  F01L1/146 ,  F01L1/181 ,  F01L1/38 ,  F01L13/0036 ,  F01L2001/0537 ,  F02D41/3058 ,  F02D2041/001 ,  F02M26/06 ,  Y02T10/42

Abstract: Systems and methods are provided for operating an internal combustion engine in a two-stroke mode or a four-stroke mode to achieve greater fuel efficiency and minimize emissions. The system comprises a mode-adaptable valve; a valve rocker arm to actuate opening and closing of the mode adaptable valve; a cam follower of a first cam for carrying out a two-stroke mode; a cam follower of a second cam for carrying out a four-stroke mode; and a pin to mechanically couple the valve rocker arm to the cam follower of the first cam or the cam follower of the second cam. Coupling the valve rocker arm to the cam follower of the first cam enables a two-stroke mode and coupling the valve rocker arm to the cam follower of the second cam enables a four-stroke mode.