公开(公告)号：KR101570889B1

公开(公告)日：2015-11-20

申请号：KR1020107013530

申请日：2009-02-06

Applicant: 가부시키가이샤 오틱스

Inventor： 후지이히로키 ,  토도키미히코

IPC: F01L1/24 ,  F01L1/20

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

Abstract: 플런저의하강시에, 밸브체의밸브폐쇄위치로의이동이지연되는것을회피한다. 역지밸브(27)는, 플런저(12)의저벽(17)을관통하는밸브구(28)와, 고압실(25) 내에배치되고플런저(12)와일체적으로상하이동하는리테이너(30)와, 고압실(25) 내에서, 밸브구(28)로부터이간하여리테이너(30)에재치되는밸브개방위치와, 밸브개방위치보다상방으로서밸브구(28)를폐색하는밸브폐쇄위치와의사이에서상하이동가능한밸브체(29)를구비하고있다. 플런저(12)가정지하고있는상태에서는, 밸브체(29)가그 자중에의해밸브개방위치에유지된다.

公开(公告)号：KR1020120016068A

公开(公告)日：2012-02-22

申请号：KR1020117025211

申请日：2010-04-09

Applicant: 바르실라 핀랜드 오이

Inventor： 순스뗀망누스 ,  끄니프스뜨룀레이쁘

IPC: F01L9/02 ,  F01L1/14 ,  F01L1/255

CPC classification number: F01L9/025 ,  F01L1/146 ,  F01L1/16 ,  F01L1/255 ,  F01L2013/0089 ,  F01L2105/00

Abstract: 본 발명은 엔진 (1) 의 캠 섀프트 (4) 의 캠 장치 (5) 와 엔진의 실린더와 연관되는 입구 밸브 (3) 를 개방 및 폐쇄하도록 구성되는 입구 밸브 메카니즘 (6) 사이에 적합한 피스톤 엔진의 입구 밸브를 위한 제어 구성물에 관한 것이며, 이 제어 구성물 (7) 은 피스톤 장치 (9) 가 캠 섀프트 (4) 및 밸브 메카니즘 (6) 과 힘 전달 연결 상태가 되도록 이동 가능하게 구성되는 본체부 (8) 를 포함하고, 상기 본체부 (8) 및 피스톤 장치 (9) 는 유압 매체가 선택적으로 안으로 이송될 수 있는 제 1 챔버 (13), 그리고 덕트 수단 (18, 18', 18") 을 통하여 제 1 챔버에 연결되는 제 2 챔버 (19) 를 함께 규정하고, 제 1 챔버 (13) 로부터 제 2 챔버 (19) 로의 유압 매체의 흐름은 입구 밸브 (3) 의 폐쇄시의 지연을 제공하기 위해 제어된다. 본체부 (8) 에는 제 1 챔버 (13) 로부터 제 2 챔버 (19) 로의 유압 매체의 흐름을 위한 상이한 루트를 구성하기 위해 2 개 이상의 흐름 덕트 (18a, 18b, 18c; 18'a, 18'b; 18"a, 18"b, 18"c) 가 제공된다. 제어 수단 (17, 17', 17") 은 상이한 폐쇄 지연을 제공하기 위해 각각의 경우에 이용되는 흐름의 루트를 선택하기 위해 제공된다.

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：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：US07621241B2

公开(公告)日：2009-11-24

申请号：US11626025

申请日：2007-01-23

Applicant: Burak A. Gecim

Inventor： Burak A. Gecim

IPC: F01L1/34

CPC classification number: F01L1/267 ,  F01L1/18 ,  F01L1/255 ,  F01L13/0005 ,  F01L13/0015 ,  F01L2001/34453

Abstract: A mechanism and method is provided for preventing instantaneous unlatching of a driving and a driven member upon an accidental drop in the hydraulic-holding pressure. One embodiment of the mechanism includes a housing having an inlet port connectable to a substantially sustained high pressure fluid source; and a configured locking pin axially displaceable to an engaged position with respect to the inlet port in response to high pressure fluid entrapped in the housing. The locking pin is spring-biasingly axially displaceable to a disengaged position when the pressure is low. The axial displacement of the locking pin sufficiently overlaps the inlet port to form a variable orifice so that the rate of exhausting of entrapped fluid is variable. In another embodiment, the entrapped fluid is slowly exhausted until a seal length is reduced to zero by the retraction of the locking pin. In another embodiment, latching and unlatching is controlled by pressure pulses. In the latched state, contact between positively-engaged parts negates the need for sustained high fluid pressures.

Abstract translation: 提供一种机构和方法，用于防止在液压保持压力的意外下降时驱动和从动构件的瞬时解锁。 机构的一个实施例包括具有可连接到基本上持续的高压流体源的入口的壳体; 以及配置的锁定销，其响应于捕获在壳体中的高压流体而轴向移位到相对于入口的接合位置。 当压力低时，锁定销弹簧偏置地轴向移动到脱离位置。 锁定销的轴向位移与入口端口充分重叠以形成可变孔口，使得截留流体的排出速率是可变的。 在另一个实施例中，捕获的流体被缓慢排出，直到通过锁定销的缩回将密封件长度减小到零。 在另一个实施例中，通过压力脉冲控制闭锁和解锁。 在锁定状态下，正向啮合部件之间的接触不需要持续的高流体压力。

公开(公告)号：US07464678B2

公开(公告)日：2008-12-16

申请号：US11675169

申请日：2007-02-15

Applicant: Frederick J. Rozario ,  Mark Stabinsky ,  William C. Albertson

Inventor： Frederick J. Rozario ,  Mark Stabinsky ,  William C. Albertson

IPC: F01L1/14

CPC classification number: F01L1/146 ,  F01L1/24 ,  F01L1/245 ,  F01L1/255 ,  F01L2810/02

Abstract: A hydraulic lash adjuster includes a cylindrical body having a central cylindrical bore. A hollow plunger is reciprocable in the bore and includes a reservoir chamber therein. The plunger has a close clearance with the bore. A high pressure chamber is defined by the plunger and a closed end of the bore. An orificed wall of the plunger separates the reservoir chamber from the high pressure chamber. A check valve is disposed in the orifice for allowing one-way flow of oil from the reservoir chamber to the high pressure chamber. A plunger spring disposed in the high pressure chamber urges the plunger away from the closed end of the bore. A seat is disposed at an end of the plunger distal from the high pressure chamber. The plunger includes a circumferential groove proximate the seat for holding oil to maintain an oil seal in the clearance to limit leakage of air through the clearance.

Abstract translation: 液压间隙调节器包括具有中心圆柱形孔的圆柱体。 中空柱塞在孔中往复运动并且在其中包括储存室。 柱塞与孔具有紧密的间隙。 高压室由柱塞和孔的封闭端限定。 柱塞的有孔壁将储存室与高压室分开。 止回阀设置在孔中，用于允许油从储存室到高压室的单向流动。 设置在高压室中的柱塞弹簧促使柱塞远离孔的封闭端。 在远离高压室的柱塞的端部设置有座椅。 柱塞包括靠近座椅的周向槽，用于保持油以将油封保持在间隙中，以限制空气通过间隙的泄漏。

公开(公告)号：US07434557B2

公开(公告)日：2008-10-14

申请号：US11632811

申请日：2005-06-18

Applicant: Peter Sailer ,  Oliver Schnell

Inventor： Peter Sailer ,  Oliver Schnell

IPC: F01L1/14

CPC classification number: F01L1/245 ,  F01L1/24 ,  F01L1/2405 ,  F01L1/2411 ,  F01L1/2416 ,  F01L1/2422 ,  F01L1/25 ,  F01L1/255 ,  F01L2001/2438 ,  F01L2101/00

Abstract: A hydraulic reverse spring valve clearance compensation element (RSHVA) for a valve train of an internal combustion engine comprising: a housing (2), which has a blind bore (3), in which a piston (4) is guided with a tight, sealing clearance; the piston (4) comprises a lower piston part (4a) with a lower piston head (5), which together with the blind bore (3) defines a high-pressure chamber (7), whilst a low-pressure chamber (8) is situated above the lower piston head (5); the pressure chambers (7, 8) being connected by a central axial bore (10) in the lower piston head (5), which is controlled by a control valve (11) arranged on the underside (23) of the lower piston head (5); the control valve (11) comprises a control valve ball (19), upon which a control valve spring (20) acts in the opening direction and the lift of which is limited by a lift-limiting stop (24) of a valve ball cap (21), whereby an RSHVA, the idle lift of which is as independent as possible of the viscosity and hence of the temperature of the lubricating oil is to be created and is achieved in that temperature-sensitive means influencing the closing time of the control valve (11) are provided, which lead to a closing time of the control valve (11) that is largely independent of the lubricating oil temperature of the internal combustion engine.

Abstract translation: 一种用于内燃机的气门机构的液压反向弹簧阀间隙补偿元件（RSHVA），包括：壳体（2），其具有盲孔（3），活塞（4）以紧密， 密封间隙; 活塞（4）包括具有下活塞头（5）的下活塞部分（4a），其与盲孔（3）一起限定高压室（7），而低压室（8） ）位于下活塞头（5）的上方; 所述压力室（7,8）由下活塞头（5）中的中心轴向孔（10）连接，所述中心轴向孔（10）由设置在所述下活塞头（5）的下侧（23）上的控制阀（11） 5）; 控制阀（11）包括控制阀球（19），控制阀弹簧（20）在打开方向上作用，并且其升力受到阀球帽的限位挡块（24）的限制 （21），由此可以产生其空转升力尽可能独立于其粘度，因此产生润滑油温度的RSHVA，并且在影响控制关闭时间的温度敏感装置中实现RSHVA 提供阀（11），其导致控制阀（11）的关闭时间，其大大独立于内燃机的润滑油温度。

公开(公告)号：US20080196684A1

公开(公告)日：2008-08-21

申请号：US11675169

申请日：2007-02-15

Applicant: Frederick J. Rozario ,  Mark Stabinsky ,  William C. Albertson

Inventor： Frederick J. Rozario ,  Mark Stabinsky ,  William C. Albertson

IPC: F01L1/20

CPC classification number: F01L1/146 ,  F01L1/24 ,  F01L1/245 ,  F01L1/255 ,  F01L2810/02

Abstract: A hydraulic lash adjuster includes a cylindrical body having a central cylindrical bore. A hollow plunger is reciprocable in the bore and includes a reservoir chamber therein. The plunger has a close clearance with the bore. A high pressure chamber is defined by the plunger and a closed end of the bore. An orificed wall of the plunger separates the reservoir chamber from the high pressure chamber. A check valve is disposed in the orifice for allowing one-way flow of oil from the reservoir chamber to the high pressure chamber. A plunger spring disposed in the high pressure chamber urges the plunger away from the closed end of the bore. A seat is disposed at an end of the plunger distal from the high pressure chamber. The plunger includes a circumferential groove proximate the seat for holding oil to maintain an oil seal in the clearance to limit leakage of air through the clearance.

Abstract translation: 液压间隙调节器包括具有中心圆柱形孔的圆柱体。 中空柱塞在孔中往复运动并且在其中包括储存室。 柱塞与孔具有紧密的间隙。 高压室由柱塞和孔的封闭端限定。 柱塞的有孔壁将储存室与高压室分开。 止回阀设置在孔中，用于允许油从储存室到高压室的单向流动。 设置在高压室中的柱塞弹簧促使柱塞远离孔的封闭端。 在远离高压室的柱塞的端部设置有座椅。 柱塞包括靠近座椅的周向槽，用于保持油以将油封保持在间隙中，以限制空气通过间隙的泄漏。

公开(公告)号：US20080072857A1

公开(公告)日：2008-03-27

申请号：US11632811

申请日：2005-06-18

Applicant: Peter Sailer ,  Oliver Schnell

Inventor： Peter Sailer ,  Oliver Schnell

IPC: F01L1/245

CPC classification number: F01L1/245 ,  F01L1/24 ,  F01L1/2405 ,  F01L1/2411 ,  F01L1/2416 ,  F01L1/2422 ,  F01L1/25 ,  F01L1/255 ,  F01L2001/2438 ,  F01L2101/00

Abstract: A hydraulic reverse spring valve clearance compensation element (RSHVA) for a valve train of an internal combustion engine comprising: a housing (2), which has a blind bore (3), in which a piston (4) is guided with a tight, sealing clearance, the piston (4) comprises a lower piston part (4a) with a lower piston head (5), which together with the blind bore (3) defines a high-pressure chamber (7), whilst a low-pressure chamber (8) is situated above the lower piston head (5); the pressure chambers (7, 8) being connected by a central axial bore (10) in the lower piston head (5), which is controlled by a control valve (11) arranged on the underside (23) of the lower piston head (5); the control valve (11) comprises a control valve ball (19), upon which a control valve spring (20) acts in the opening direction and the lift of which is limited by a lift-limiting stop (24) of a valve ball cap (21), whereby an RSHVA, the idle lift of which is as independent as possible of the viscosity and hence of the temperature of the lubricating oil is to be created and is achieved in that temperature-sensitive means influencing the closing time of the control valve (11) are provided, which lead to a closing time of the control valve (11) that is largely independent of the lubricating oil temperature of the internal combustion engine.

Abstract translation: 一种用于内燃机的气门机构的液压反向弹簧阀间隙补偿元件（RSHVA），包括：壳体（2），其具有盲孔（3），活塞（4）以紧密， 活塞（4）包括具有下活塞头（5）的下活塞部分（4a），其与盲孔（3）一起限定高压室（7），同时低压 室（8）位于下活塞头（5）的上方; 所述压力室（7,8）由下活塞头（5）中的中心轴向孔（10）连接，所述中心轴向孔（10）由设置在所述下活塞头（5）的下侧（23）上的控制阀（11） 5）; 控制阀（11）包括控制阀球（19），控制阀弹簧（20）在打开方向上作用，并且其升力受到阀球帽的限位挡块（24）的限制 （21），由此可以产生其空转升力尽可能独立于其粘度，因此产生润滑油温度的RSHVA，并且在影响控制关闭时间的温度敏感装置中实现RSHVA 提供阀（11），其导致控制阀（11）的关闭时间，其大大独立于内燃机的润滑油温度。

公开(公告)号：US07246590B2

公开(公告)日：2007-07-24

申请号：US11304461

申请日：2005-12-15

Applicant: Henning Karbstein ,  William Carter ,  David Kehr

Inventor： Henning Karbstein ,  William Carter ,  David Kehr

IPC: F01L1/14

CPC classification number: F01L1/146 ,  F01L1/181 ,  F01L1/24 ,  F01L1/245 ,  F01L1/255 ,  F01L2001/256 ,  F01L2101/00 ,  F01L2105/00 ,  Y10T74/2107 ,  Y10T74/2152

Abstract: The invention proposes a valve train (1) of an internal combustion engine comprising a tappet (7) and a tappet pushrod (1) that is actuated by said tappet (7), said tappet pushrod (1) being at least partly hollow and comprising on one end (3), a first support (4) for a pressure piston (5) of a hydraulic lash adjuster (6) of said tappet (7) that follows a periodic driving element such as a cam. A second support (9) for a follower member (2) such as a rocker arm is arranged on a further end (8) of the tappet pushrod (1). The first support (4) comprises a passage (10) for hydraulic medium that can be routed out of the pressure piston (5) during operation of the internal combustion engine into an interior (11) of the tappet pushrod (1), a one-way valve means (12) being installed in the tappet pushrod (1) for retaining a hydraulic medium column during a standstill of the internal combustion engine. In this way, an additional reservoir for hydraulic medium is created that serves for the rapid filling of the pressure piston (5) immediately after a re-starting of the internal combustion engine.

Abstract translation: 本发明提出了一种内燃机的气门机构（1），其包括由所述挺杆（7）致动的挺杆（7）和挺杆推杆（1），所述挺杆推杆（1）至少部分中空，并且包括 在一端（3）上，所述挺杆（7）的液压间隙调节器（6）的压力活塞（5）的第一支撑件（4）沿着诸如凸轮的周期性驱动元件。 用于诸如摇臂的从动构件（2）的第二支撑件（9）布置在挺杆推杆（1）的另一端（8）上。 第一支撑件（4）包括用于液压介质的通道（10），其在内燃机进入推杆推杆（1）的内部（11）期间可以从压力活塞（5）排出，一个 所述推杆阀装置（12）安装在所述推杆推杆（1）中，用于在所述内燃机停止期间保持液压介质柱。 以这种方式，产生用于液压介质的附加储存器，其用于在内燃机重启之后立即快速填充压力活塞（5）。