公开(公告)号：US09382819B2

公开(公告)日：2016-07-05

申请号：US14427114

申请日：2013-09-03

Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.

Inventor： Makoto Nakamura

IPC: F01L1/34 ,  F01L1/26 ,  F02D13/02 ,  F01L1/10 ,  F01L13/00 ,  F01L1/46 ,  F01L1/255 ,  F01L1/24

CPC classification number: F01L1/267 ,  F01L1/10 ,  F01L1/255 ,  F01L1/462 ,  F01L13/00 ,  F01L13/0005 ,  F01L13/0026 ,  F01L13/0063 ,  F01L2001/2433 ,  F02D13/0211 ,  F02D13/0246 ,  Y02T10/18

Abstract: Provided is a variable valve device for an internal combustion engine. The variable valve device includes intake- and exhaust-side swing arms that pivot to open and close intake valves and exhaust valves in two cylinders #1, #2, intake- and exhaust-side hydraulic lash adjusters that serve as pivot points of the respective swing arms, a variable valve system that continuously varies valve lift characteristics of the intake valves and lost motion mechanisms that stop opening and closing of the intake exhaust valves by lost motion of the intake- and exhaust-side hydraulic lash adjusters on the cylinder #1. The maximum valve lifts of the intake valves are set larger than valve lifts of the exhaust valves. The minimum valve lifts of the intake valves are set smaller than the valve lifts of the exhaust valves.

Abstract translation: 提供一种用于内燃机的可变气门装置。 可变气门装置包括进气和排气侧摆动臂，其枢转以打开和关闭两个气缸＃1，＃2，进气和排气侧液压间隙调节器中的进气门和排气阀，其用作相应的枢转点 摆动臂，连续改变进气门的气门升程特性的可变气门系统和通过气缸＃1上的进气排气侧液压间隙调节器的运动而停止进气排气门的打开和关闭的空转机构 。 进气阀的最大气门升程设定得大于排气阀的气门升程。 进气门的最小气门升程设定得小于排气阀的气门升程。

公开(公告)号：US20050120989A1

公开(公告)日：2005-06-09

申请号：US10498481

申请日：2003-01-15

Applicant: Norbert Geyer ,  Peter Sailer ,  Oliver Schnell

Inventor： Norbert Geyer ,  Peter Sailer ,  Oliver Schnell

IPC: F01L1/14 ,  F01L1/245 ,  F01L1/255 ,  F01L13/00 ,  H01H3/42

CPC classification number: F01L1/14 ,  F01L1/146 ,  F01L1/245 ,  F01L1/255 ,  F01L13/0005 ,  F01L13/0031 ,  F01L2103/00 ,  F01L2105/00

Abstract: The invention proposes a switching element (1) for a valve train of an internal combustion engine, particularly for valve deactivation, with a simple-to-implement measure for adjusting the coupling lash of its coupling means (8) in a receptacle (6) using two retaining rings (19, 20), one of which is stocked in a variety of thicknesses.

Abstract translation: 本发明提出了一种用于内燃机的气门机构的开关元件（1），特别是用于阀门失活的开关元件（1），其具有用于调节其接头（6）中的联接装置（8）的联接间隙的简单实施措施， 使用两个保持环（19,20），其中一个保持环以各种厚度存放。

公开(公告)号：US4646690A

公开(公告)日：1987-03-03

申请号：US664091

申请日：1984-10-24

Applicant: Yoshimasa Hayashi

Inventor： Yoshimasa Hayashi

IPC: F01L1/18 ,  F01L1/16 ,  F01L1/24 ,  F01L1/255

CPC classification number: F01L1/255 ,  F01L1/16

Abstract: A valve train of an overhead camshaft engine is provided with a mechanism for taking up slack in the valve train. The slack take up mechanism is constituted by a tappet, an oil pressure chamber, a coil spring, etc. and constructed such that leakage of the oil pressure chamber takes place for take up adjustment during each cycle of valve operation.

Abstract translation: 顶置凸轮轴发动机的气门机构设置有用于卷取气门机构中的松弛的机构。 松弛卷取机构由挺杆，油压室，螺旋弹簧等构成，并且构造成使得在每个操作循环中进行油压室的泄漏以进行卷取调节。

公开(公告)号：US2036936A

公开(公告)日：1936-04-07

申请号：US66097133

申请日：1933-03-15

Applicant: BERNARD HALFORD FRANK

Inventor： BERNARD HALFORD FRANK

IPC: F01L1/24 ,  F01L1/25 ,  F01L1/255

CPC classification number: F01L1/2411 ,  F01L1/252 ,  F01L1/255

公开(公告)号：US20230332520A1

公开(公告)日：2023-10-19

申请号：US18025402

申请日：2020-12-07

Applicant: WEICHAI POWER CO., LTD.

Inventor： Shenggang GUO ,  Fei WANG ,  Cheng XU

IPC: F01L13/06 ,  F01L1/255 ,  F01L1/18

CPC classification number: F01L1/255 ,  F01L1/181 ,  F01L13/06 ,  F01L2001/2444

Abstract: A rocker arm mechanism includes a rocker arm shaft, a rocker arm, a valve clearance adjuster, a valve train, and a control valve. The rocker arm is rotatably disposed on the rocker arm shaft. The valve train includes a valve bridge. The rocker arm is provided with a plunger chamber. The valve clearance adjuster includes a hydraulic tappet slidably disposed in the plunger chamber. The plunger chamber is supplied with oil through an oil supply passage. The control valve is configured to open or close the oil supply passage. When the control valve opens the oil supply passage, the hydraulic tappet can abut against the valve bridge and eliminate the clearance between the valve bridge and the hydraulic tappet.

公开(公告)号：US10590810B2

公开(公告)日：2020-03-17

申请号：US16186500

申请日：2018-11-10

Applicant: Jacobs Vehicle Systems, Inc.

Inventor： David M. Ferreira ,  Gabriel S. Roberts ,  Justin D. Baltrucki

IPC: F01L1/14 ,  F01L1/255 ,  F01L1/24 ,  F01L1/18 ,  F01L1/26 ,  F01L13/06 ,  F01L1/08 ,  F01L13/00

Abstract: Systems for valve actuation in internal combustion engines provide configurations for hydraulic lash adjusters and valve actuation valvetrain components that are particularly suitable for prevention of HLA jacking in lost motion cam environments and in valve bridge environments. In one implementation, a rocker arm may transmit motion from a lost motion cam having main event and auxiliary event lobes. Main event motion is transmitted to two engine valves through the rocker arm, a lash adjuster, lash adjuster loading component and valve bridge, which define part of a first load path. Braking motion is transmitted to one of the engine valves through an inboard valve actuator and bridge pin, which define part of a second load path. The HLA is thus disposed in a separate load path from the braking valve load and the lash adjuster loading component keeps the lash adjuster under a constant compressive force to prevent jacking.

公开(公告)号：US10352203B2

公开(公告)日：2019-07-16

申请号：US15501390

申请日：2014-09-17

Applicant: NITTAN VALVE CO., LTD.

Inventor： Hiroyuki Ozawa

IPC: F01L1/24 ,  F01L1/245 ,  F01L1/255 ,  F01L1/20

Abstract: Air is restrained from flowing into a high pressure chamber while the number of parts is reduced. A plunger is slidably fitted into a body; a reservoir is formed in the plunger with a communication hole formed in a head section thereof to allow communication between an inside and an outside; a high pressure chamber is formed in the body between the body and the plunger bottom section; an oil supply hole is formed in a plunger circumferential wall section; a return spring is interposed between the body and the plunger; a valve mechanism is disposed on the plunger bottom section; the reservoir is set such that a space continuously extends; and the oil supply hole is oriented outward in the radial direction as compared to an axis of the plunger.

公开(公告)号：US09567960B2

公开(公告)日：2017-02-14

申请号：US14224882

申请日：2014-03-25

Applicant: Cummins Inc.

Inventor： John D. Crofts ,  Justin Gregory Wenger

IPC: F02M59/10 ,  F01M9/10 ,  F16J10/04 ,  F01L1/255 ,  F01L1/14 ,  F01L1/245 ,  F02M59/06 ,  F04B1/04 ,  F02M41/14

CPC classification number: F02M59/102 ,  F01L1/14 ,  F01L1/146 ,  F01L1/245 ,  F01L1/255 ,  F01L2107/00 ,  F01M9/104 ,  F02M59/06 ,  F02M2041/1494 ,  F02M2200/02 ,  F04B1/0417 ,  F16J10/04

Abstract: A fuel pump assembly for an internal combustion engine includes a fuel pump housing, a cylindrical bore defined in the fuel pump housing, and a tappet assembly received in the cylindrical bore. The tappet assembly includes a one-piece shoe having a recess disposed in a bottom portion thereof, and a roller that is partially received within the recess and configured to rotate about a roller axis.

Abstract translation: 用于内燃机的燃料泵组件包括燃料泵壳体，限定在燃料泵壳体中的圆柱形孔和容纳在圆柱形孔中的挺杆组件。 挺杆组件包括一个整体式的鞋，其具有设置在其底部的凹部，以及一个辊，其部分地容纳在该凹槽内并被构造为围绕一个辊轴旋转。

公开(公告)号：US4796573A

公开(公告)日：1989-01-10

申请号：US103879

申请日：1987-10-02

Applicant: Russell J. Wakeman ,  Stephen F. Shea

Inventor： Russell J. Wakeman ,  Stephen F. Shea

IPC: F01L1/24 ,  F01L1/16 ,  F01L1/255 ,  F01L9/02

CPC classification number: F01L9/025 ,  F01L1/16 ,  F01L1/255

Abstract: Hydraulic engine valve lifter includes a pair of pistons defining a pressure chamber therebetween and a separate lash adjusting piston which defines a lash adjustment chamber with one of the pistons in the pair. One-way valve structures permit fluid to flow from the pressure chamber into the lash adjustment chamber thereby displacing the lash adjusting piston to, in turn, adjust valve lash. Motion damping functions during a downstroke of the lifter pistons are also provided by a valve damper chamber and fluid passageways between the pressure and damper chambers. Structure is provided which opens communication between the pressure and damper chambers during upstroke of the lifter pistons (thereby precluding motion damping) and then closes communication at a predetermined location during downstroke (thereby providing motion damping).

Abstract translation: 液压发动机气门升降器包括一对在其间形成压力室的活塞和一个单独的间隙调节活塞，其限定了一对活塞中的一个活塞的间隙调节室。 单向阀结构允许流体从压力室流入间隙调节室，从而使间隙调节活塞移位，从而调节阀间隙。 提升活塞下行期间的运动阻尼功能也由阀阻尼室和压力室和阻尼室之间的流体通道提供。 提供了结构，其在升降器活塞上行期间打开压力和阻尼室之间的连通（从而阻止运动阻尼），然后在下行程期间在预定位置闭合通信（从而提供运动阻尼）。

公开(公告)号：US4793295A

公开(公告)日：1988-12-27

申请号：US669343

申请日：1984-11-08

Applicant: Todd R. Downing

Inventor： Todd R. Downing

IPC: F01L1/24 ,  F01L1/14 ,  F01L1/255

CPC classification number: F01L1/255 ,  F01L1/14 ,  F01L2105/00

Abstract: A hydraulic lash adjuster has a generally cylindrical, hollow body having a closed end, an open end and a top land at the open end. A plunger is positioned in the body and is held in place by a retainer. The retainer is fastened to the exterior of the body. The retainer has a rim supported on the top land of the body and is held in place by tabs which are folded under into grooves in the side of the body.

Abstract translation: 液压间隙调节器具有大致圆柱形的中空本体，其具有封闭端，开口端和开口端的顶部平台。 柱塞定位在主体中并通过保持器保持在适当的位置。 保持器固定在身体的外部。 保持器具有支撑在主体的顶部平台上的边缘并且通过折叠在主体侧面的凹槽中的突片保持在适当位置。