公开(公告)号：EP0180872A2

公开(公告)日：1986-05-14

申请号：EP85113626.7

申请日：1985-10-25

Applicant: STANADYNE INC.

Inventor： Downing, Todd R.

IPC: F01L1/14

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.

公开(公告)号：US20190145289A1

公开(公告)日：2019-05-16

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: F01L1/255 ,  F01L1/24

CPC classification number: F01L1/255 ,  F01L1/08 ,  F01L1/181 ,  F01L1/24 ,  F01L1/2416 ,  F01L1/26 ,  F01L13/065 ,  F01L2001/2433 ,  F01L2013/105 ,  F01L2105/00

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：US20150275834A1

公开(公告)日：2015-10-01

申请号：US14224882

申请日：2014-03-25

Applicant: CUMMINS INC.

Inventor： John D. Crofts ,  Justin Gregory Wenger

IPC: F02M59/10

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：US20150240671A1

公开(公告)日：2015-08-27

申请号：US14427114

申请日：2013-09-03

Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.

Inventor： Makoto Nakamura

IPC: F01L1/26 ,  F01L13/00 ,  F01L1/46

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, capable of improving engine characteristics by increasing the maximum valve lift of an intake valve to a large valve lift while preventing excessive lost motion operation of lost motion mechanisms. The variable valve device includes intake- and exhaust-side swing arms that pivot to open and close intake valves (3a, 3b) and exhaust valves (61a, 61b) in two cylinders #1, #2, intake- and exhaust-side hydraulic lash adjusters (10a, 10b, 65a, 65b) 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 (11) 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，其能够通过将进气门的最大气门升程增加到大的气门升程来提高发动机特性，同时防止空转机构的过度的运动失灵。 可变气门装置包括进排气侧摆动臂，其枢转以打开和关闭两个气缸＃1，＃2，进气和排气侧液压的进气门（3a，3b）和排气门（61a，61b） 用作各个摆臂的枢转点的间隙调节器（10a，10b，65a，65b），连续改变进气门的气门升程特性的可变气门系统和停止打开和关闭的空动机构（11） 进气排气阀由于气缸＃1上进气排气侧液压间隙调节器的运动而失效。 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：US09080469B2

公开(公告)日：2015-07-14

申请号：US14175610

申请日：2014-02-07

Applicant: OTICS CORPORATION

Inventor： Hiroyuki Suzuki ,  Hideki Oka ,  Kiyoshi Masegi

IPC: F01L1/18 ,  F01L1/24 ,  F01L1/255 ,  F01L1/245

CPC classification number: F01L1/24 ,  F01L1/2405 ,  F01L1/255 ,  F01L2001/2427 ,  F01L2001/256

Abstract: A lash adjuster includes a plunger having a bottom wall with a valve hole and a peripheral wall having an oil passage hole and an inner periphery formed with a recessed groove, the plunger defining a high-pressure chamber between the bottom wall and a body, and a partitioning member having an oil passage end located above the oil passage hole. The partitioning member has an oil-passage defining portion located opposite the recessed groove and defining an oil passage between itself and a groove face of the recessed groove. The partitioning member defines a low-pressure chamber reserving a hydraulic fluid flowing through the oil passage hole, the oil passage and the oil passage end. The low-pressure chamber causes the reserved hydraulic fluid to flow through the valve hole into the high-pressure chamber. The partitioning member is formed into a cylindrical shape and extends in an up-down direction without any stepped part.

Abstract translation: 间隙调节器包括具有阀孔的底壁和具有油通孔的周壁和形成有凹槽的内周的柱塞，柱塞在底壁和主体之间限定高压室，以及 具有位于所述油通孔上方的油路端的分隔构件。 分隔构件具有与凹槽相对设置的油通道限定部分，并且在其自身和凹槽的凹槽面之间限定油通道。 分隔构件限定了储存流过油通道孔，油路和油路端的液压流体的低压室。 低压室使保留的液压流体通过阀孔流入高压室。 分隔构件形成为圆柱形，并且在上下方向上延伸而没有任何台阶部分。

公开(公告)号：US08371258B2

公开(公告)日：2013-02-12

申请号：US12865967

申请日：2009-02-06

Applicant: Hiroki Fujii ,  Kimihiko Todo

Inventor： Hiroki Fujii ,  Kimihiko Todo

IPC: F01L1/14

CPC classification number: F01L1/2405 ,  F01L1/2411 ,  F01L1/2416 ,  F01L1/2422 ,  F01L1/25 ,  F01L1/255 ,  F01L2101/00 ,  F01L2101/02 ,  F01L2103/00 ,  F01L2820/01

Abstract: A lash adjuster includes a cylindrical body, a cylindrical plunger, a low pressure chamber defined in the plunger, a high pressure chamber defined in a hollow lower interior of the body and filled with an operating fluid, a check valve allowing the operating fluid to flow into the high pressure chamber when in a valve-opened state and cutting off flow of the operating fluid from the high pressure chamber into the low pressure chamber when in a valve-closed state. A retainer of the check valve includes a base plate and a cylindrical portion extending upward from an outer circumferential edge of the base plate so as to surround the valve element. The base plate includes a central portion on which the valve element is placed and which has an upper surface formed with a swollen portion. The cylindrical portion has a plurality of openings formed through it circumferentially equiangularly.

Abstract translation: 间隙调节器包括圆柱形主体，圆柱形柱塞，限定在柱塞中的低压室，限定在主体的中空下部内部并且填充有工作流体的高压室，允许工作流体流动的止回阀 在处于阀打开状态时进入高压室，并且当处于阀关闭状态时，将工作流体从高压室流入低压室。 止回阀的保持器包括基板和从基板的外周边缘向上延伸以围绕阀元件的圆柱形部分。 基板包括中心部分，阀元件放置在该中心部分上，并且具有形成有肿胀部分的上表面。 圆柱形部分具有沿圆周等角度形成的多个开口。

公开(公告)号：US07900591B2

公开(公告)日：2011-03-08

申请号：US12248263

申请日：2008-10-09

Applicant: Bodo Roerig ,  Joachim Seitz ,  Robert Heinemann

Inventor： Bodo Roerig ,  Joachim Seitz ,  Robert Heinemann

IPC: F01L1/14

CPC classification number: F01L1/2405 ,  F01L1/185 ,  F01L1/255 ,  F01L13/0005 ,  F01L2101/00

Abstract: The invention proposes a switchable component (1) for a valve train of an internal combustion engine, said component (1) comprising a housing (2) in whose bore (3) an axially displaceable inner element (4) comprising coupling elements (5) is received, said coupling elements (5), for effecting coupling, being able to be brought partially into engagement with an entraining surface (6) of the housing (2), the inner element (4) being biased in outward direction from the housing (2) by a lost motion spring (7), and an (outer) anti-rotation device (11) extending from an outer casing (10) of the housing (2) projects beyond a surrounding structure (12a), the outer anti-rotation device (11) is configured as a C-shaped, thin-walled ring (13) comprising a slit (12), said ring (13) extends after the manner of a clip in an annular groove (14) in the outer casing (10) of the housing (2) parallel to a transversal plane of the component (1) and, for effecting outer anti-rotation, said ring (13) projects with a sickle-like portion (15) of its outer peripheral surface (16) beyond the outer casing (10) of the housing (2).

Abstract translation: 本发明提出了一种用于内燃机的气门机构的可切换部件（1），所述部件（1）包括壳体（2），其中孔（3）包括联接元件（5）的可轴向移动的内部元件（4） 所述联接元件（5）用于实现联接，能够部分地与所述壳体（2）的夹带表面（6）接合，所述内部元件（4）从所述外壳 （2）通过空转弹簧（7）和从壳体（2）的外壳（10）延伸的（外）防旋转装置（11）突出超过周围结构（12a），外反 旋转装置（11）被构造为包括狭缝（12）的C形薄壁环（13），所述环（13）以夹子的方式延伸到外部的环形槽（14）中 壳体（2）的壳体（10）平行于部件（1）的横向平面，并且为了进行外部防旋转，所述环（13）工件 其外周表面（16）的镰刀状部分（15）超出外壳（2）的外壳（10）。

公开(公告)号：US20060201466A1

公开(公告)日：2006-09-14

申请号：US11370633

申请日：2006-03-08

Applicant: Oliver Schnell ,  Christian Schaefer ,  Peter Sailer

Inventor： Oliver Schnell ,  Christian Schaefer ,  Peter Sailer

IPC: F01L1/14

CPC classification number: F01L1/255 ,  F01L1/24 ,  F01L1/245 ,  F01L2001/2438

Abstract: A hydraulic valve play compensation element for an internal combustion engine is provided as a reverse-spring/free-ball element, with a cylindrical housing, a cylindrical piston (21) guided therein with sealing play and a control valve (20), which is arranged between a low-pressure chamber (22) of the piston (21) and a high-pressure chamber (24) of the housing, on a piston head (25) of the piston and which has a closing body (27), which can contact a valve seat (26) surrounding an axial bore hole (23) of the piston head (25) when carrying out a stroke (28) in the closing direction against the force of a control-valve spring (34) and which can contact a contact surface (29) of a valve cap (30) surrounding the closing body (27) when carrying out a stroke in the opening direction. In a region of the axial bore hole (23) for the closing body (27) there is a narrow guidance surface (32) with gaps, which enable a volume flow of hydraulic medium between the high-pressure chamber (24) and the low-pressure chamber (22).

Abstract translation: 本发明提供一种用于内燃机的液压阀游隙补偿元件作为反弹簧/自由球元件，其具有圆柱形壳体，在其中引导密封的圆柱形活塞（21）和控制阀（20），其中， 布置在活塞（21）的低压室（22）和壳体的高压室（24）之间，位于活塞的活塞头（25）上并且具有闭合体（27），该闭合体 当相对于控制阀弹簧（34）的力执行关闭方向上的冲程（28）时，可以接触围绕活塞头（25）的轴向孔孔（23）的阀座（26） 在打开方向上执行行程时，接触围绕封闭体（27）的阀盖（30）的接触表面（29）。 在用于封闭体（27）的轴向钻孔（23）的区域中，存在具有间隙的狭窄的引导表面（32），这使得液压介质在高压室（24）和低压室 - 压力室（22）。

公开(公告)号：US20060191503A1

公开(公告)日：2006-08-31

申请号：US11415074

申请日：2006-05-02

Applicant: Norbert Geyer ,  Peter Sailer ,  Oliver Schnell

Inventor： Norbert Geyer ,  Peter Sailer ,  Oliver Schnell

IPC: F01L1/14 ,  F01L1/34

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：US20060081206A1

公开(公告)日：2006-04-20

申请号：US11063444

申请日：2005-02-23

Applicant: Peter Sailer ,  Oliver Schnell

Inventor： Peter Sailer ,  Oliver Schnell

IPC: F01L1/14

CPC classification number: F01L1/2405 ,  F01L1/255 ,  F01L2105/00

Abstract: What is proposed is a hydraulic lash adjuster (1), for example for a valve train of an internal combustion engine. The lash adjuster (1) comprises a hollow cylindrical housing (2) that is inter-inserted with an axially relatively displaceable pressure piston (3). A high pressure chamber (6) for hydraulic medium extends between opposing front ends (4, 5) of the pressure piston (3) and the housing (2). The high pressure chamber (6) can be supplied, via a one-way valve (8) arranged on the front end (4) and opening towards the high pressure chamber (6) with hydraulic medium out of a reservoir (9). A leak gap (12) for the hydraulic medium is formed between an outer peripheral surface (10) of the pressure piston (3) and a bore (11) of the housing (2). In its portion adjoining the front end (5) of the housing (2), the bore (11) of the housing (2) merges into an annular enlargement (15). According to the invention, the front end (4) of the pressure piston (3) comprises in its transition region to the outer peripheral surface (10), a chamfer (16) whose height (HF) is equal to or larger than a height (HR) of the annular enlargement (15). In this way, it is effectively prevented that undesired particles situated in the high pressure chamber (6) get deposited on the outer peripheral surface (10) of the pressure piston (3) in the sunk state thereof, and penetrate into the leak gap (12) during the subsequent adjusting operation with the danger of a clamping of the pressure piston (3).

Abstract translation: 所提出的是液压间隙调节器（1），例如用于内燃机的气门机构。 间隙调节器（1）包括中空圆柱形壳体（2），其与轴向相对位移的压力活塞（3）相互插入。 用于液压介质的高压室（6）在压力活塞（3）的相对的前端（4,5）和壳体（2）之间延伸。 高压室（6）可以通过布置在前端（4）上的单向阀（8）供给，并且通过液压介质从储存器（9）向高压室（6）打开。 在压力活塞（3）的外周表面（10）和壳体（2）的孔（11）之间形成用于液压介质的泄漏间隙（12）。 在其与壳体（2）的前端（5）相邻的部分中，壳体（2）的孔（11）合并成环形扩大部（15）。 根据本发明，压力活塞（3）的前端（4）在其与外周表面（10）的过渡区域中包括一个倒角（16），其高度（HΦF） 等于或大于环形扩大部分（15）的高度（H SUB R）。 以这种方式，可以有效地防止位于高压室（6）中的不期望的颗粒沉积在压力活塞（3）的外表面（10）处于沉没状态，并且渗透到泄漏间隙 12）在随后的调节操作期间有压力活塞（3）夹紧的危险。