公开(公告)号：EP2564038B1

公开(公告)日：2014-09-17

申请号：EP11715902.0

申请日：2011-04-13

Applicant: Schaeffler Technologies GmbH & Co. KG

Inventor： SAILER, Peter ,  SCHNELL, Oliver ,  WITTER, Oliver ,  TIETZEL, Klaus

IPC: F01L1/18 ,  F01L1/24 ,  F01L1/245 ,  F01L13/06

CPC classification number: F01L1/245 ,  F01L1/181 ,  F01L1/2411 ,  F01L13/06 ,  F01L2105/00 ,  F01L2820/01 ,  F01L2820/032

公开(公告)号：EP2458166B1

公开(公告)日：2013-11-13

申请号：EP11176528.5

申请日：2011-08-04

Applicant: Schaeffler Technologies AG & Co. KG

Inventor： Schnell, Oliver ,  Sailer, Peter

IPC: F01L13/00 ,  F01L1/18 ,  F01L1/245 ,  F01L1/24

CPC classification number: F01L13/0005 ,  F01L1/053 ,  F01L1/182 ,  F01L1/2405 ,  F01L1/245 ,  F01L2001/188

公开(公告)号：EP2564038A2

公开(公告)日：2013-03-06

申请号：EP11715902.0

申请日：2011-04-13

Applicant: Schaeffler Technologies AG & Co. KG

Inventor： SAILER, Peter ,  SCHNELL, Oliver ,  WITTER, Oliver ,  TIETZEL, Klaus

IPC: F01L1/245 ,  F01L13/06 ,  F02M57/02

CPC classification number: F01L1/245 ,  F01L1/181 ,  F01L1/2411 ,  F01L13/06 ,  F01L2105/00 ,  F01L2820/01 ,  F01L2820/032

Abstract: The invention relates to a reciprocating-piston internal combustion engine which operates on the four-stroke cycle, having a crankcase and having at least one cylinder which is arranged in said crankcase and in which a piston is guided by a crankshaft, having at least one cylinder head which closes off the cylinder and the inlet and outlet ducts of which are controlled by at least in each case one inlet and outlet valve loaded by a valve spring, which inlet and outlet valves can be actuated by transmission elements driven by a camshaft, and having a hydraulic valve play compensating element (5) which is installed in at least one of the transmission elements or in a component, which is installed in the transmission element, between the camshaft and at least one inlet and/or outlet valve, which hydraulic valve play compensating element has a working piston (8), a cylinder housing (7) which interacts with the working piston (8), a restoring spring (18) which is installed in between, and a check valve which delimits a high-pressure chamber (19) and the valve closing body (12) of which corresponds to a valve seat (11) on the working piston (8), wherein the valve closing body (12) has a partial spherical surface (13) in the region of the valve seat (11), and wherein the ratio of the diameter of the working piston (8) to twice the radius of the partial spherical surface (13) is ≤ 2.

公开(公告)号：EP1945916A1

公开(公告)日：2008-07-23

申请号：EP06820869.3

申请日：2006-11-08

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA ,  Nittan Valve Co., Ltd.

Inventor： KATSUMATA, Shouji ,  HOSAKA, Akihiko ,  KOJIMA, Ryo ,  KAWAKITA, Junichi

IPC: F01L1/24 ,  F01L1/245

CPC classification number: F01L1/2405 ,  F01L1/245 ,  F01L2109/00

Abstract: The liquid is sealed in the lash adjuster 1OOA so that the volume 'V1' of the gas, in the reservoir chamber 1OA when the lash adjuster IOOA is being produced and the plunger 2A protrudes from the body, is equal to or more than 1.24 times as great as the sum of the volume 'Vo1' of the liquid discharged from the high-pressure chamber 11 when the plunger 2A moves downward, and the increase 'Vo2' in the volume of the liquid that expands, due to heat, when the temperature of the gas in the reservoir chamber is increased from the production temperature to the maximum use temperature, and the ratio of 'V1' to 'Vo1 + Vo2' is equal to or higher than a ratio, which is derived based on the production temperature and the maximum use temperature, when the inner pressure of the lash adjuster 100A increases by 500 kPa at maximum.

公开(公告)号：EP1612376A1

公开(公告)日：2006-01-04

申请号：EP04253904.9

申请日：2004-06-29

Applicant: EATON S.R.L.

Inventor： Cecur, Majo

IPC: F01L1/24 ,  F01L1/245

CPC classification number: F01L1/2405 ,  F01L1/24 ,  F01L1/245

Abstract: A hydraulic lash adjuster (17;61;81) in which the body (19) defines a body bore (39) extending over substantially the entire axial length of the body, thus making it possible to finish the bore (39) by a more accurate process, such as honing. In the FIG. 2 embodiment, there is a cylindrical member (71) disposed in the lower portion of the body bore (39) cooperating to define a leakdown clearance (39,71S, to isolate side load on the plunger (25) from the leakdown. In the FIG. 3 embodiment, there is both the leakdown clearance (23S,39) between the body bore and the plunger (23) and the leakdown clearance (39,71S) between the body bore and the cylindrical member (71), the leakdown flow rate of FIG. 3 being variable if the body and the cylindrical member (71) comprise dissimilar metals, having different coefficients of thermal expansion.

Abstract translation: 一种液压间隙调节器（17; 61; 81），其中所述主体（19）限定在所述主体的基本上整个轴向长度上延伸的主体孔（39），从而使得可以更多地完成所述孔（39） 准确的过程，如珩磨。 在图 在图2的实施例中，存在设置在主体孔（39）的下部中的圆柱形构件（71），其协作以限定泄漏间隙（39,71S，以隔离柱塞（25）上的侧向负荷与泄漏， 在图3的实施例中，体孔和柱塞（23）之间的泄漏空隙（23S，39）和体孔和圆柱形构件（71）之间的泄漏间隙（39,71S）都有泄漏流量 如果主体和圆柱形构件（71）包括具有不同热膨胀系数的异种金属，则图3的速率是可变的。

公开(公告)号：EP1604098A2

公开(公告)日：2005-12-14

申请号：EP04718059.1

申请日：2004-03-05

Applicant: KOHLER CO.

Inventor： CHITTENDEN, Jonathan, Richard ,  BRACHT, Jeffery, Lawrence

IPC: F01L1/14 ,  F01L1/16

CPC classification number: F01L1/146 ,  F01L1/024 ,  F01L1/026 ,  F01L1/245 ,  F01L13/085

Abstract: A valve train with a hydraulic lifter in an engine, and a method of configuring a hydraulic lifter of an engine, are disclosed. The valve train includes a valve, a cam, and at least one coupling component. The valve train further includes the hydraulic lifter, which has a nominal length and is coupled at least indirectly between the valve and the cam by way of the at least one coupling component. The valve train additionally includes a mechanism for varying the nominal length of the hydraulic lifter so that the nominal length is substantially closer to a minimum length of the hydraulic lifter than to a maximum length of the hydraulic lifter.

公开(公告)号：EP0887518A1

公开(公告)日：1998-12-30

申请号：EP98304880.2

申请日：1998-06-22

Applicant: EATON CORPORATION

Inventor： Carpenter, Brian W. ,  Hillebrand, George A. ,  Blowers, Bryan K.

IPC: F01L1/24

CPC classification number: F01L1/245 ,  F01L1/2405

Abstract: A hydraulic lash adjuster of the type including a ball plunger (61) defining a passage (63), or a body portion (85) defining a passage (87). A metering valve is disposed in the passage, and in accordance with the invention (FIGS. 2-4), a shank portion (77) of the metering pin (73) defines a metering passage (81). During normal operation, pressure in the low pressure chamber (21) biases the metering pin (73) upward, to a position in which fluid can flow from the chamber (21), through the metering passage (81), to the external surface (71) of the ball plunger (61). When pressure in the chamber (21) is very low, or negative, a head portion (75) is disposed against a seat (69) in the manner of a check valve. The up and down movement of the pin (73) prevents the metering passage (81) from becoming plugged with contaminants.

Abstract translation: 一种液压间隙调节器，包括限定通道（63）的球柱塞（61）或限定通道（87）的主体部分（85）。 计量阀设置在通道中，并且根据本发明（图2-4），计量销（73）的柄部分（77）限定了计量通道（81）。 在正常操作期间，低压室（21）中的压力将计量销（73）向上偏压到流体可以从室（21）流过计量通道（81）的位置到外表面 71）。 当室（21）中的压力非常低或为负时，头部（75）以止回阀的方式抵靠座（69）设置。 销（73）的上下运动防止计量通道（81）被污染物堵塞。

公开(公告)号：EP0767291A1

公开(公告)日：1997-04-09

申请号：EP96306432.4

申请日：1996-09-05

Applicant: EATON CORPORATION

Inventor： Deppe, David William

IPC: F01L1/14 ,  F01L1/18 ,  F01L1/24 ,  F01M9/10

CPC classification number: F01L1/185 ,  F01L1/14 ,  F01L1/143 ,  F01L1/146 ,  F01L1/181 ,  F01L1/245 ,  F01L2105/02 ,  F01L2810/02 ,  F01M9/104 ,  F01M9/107 ,  Y10T74/2107

Abstract: A roller cam follower (10, 110, 210, 54) for an internal combustion engine. The cam follower includes a roller assembly (16, 116, 216, 316) consisting of an insert member (34, 134, 234, 334) formed of a conformable plastic material and an axleless roller (36, 336) received in a cavity formed in the insert, the material of the insert closely conforming to the contour of the roller. Various adaptations of the inventive cam follower structure are shown; including a light weight mechanical valve lifter (10), a hydraulic lash adjuster (110), a rocker arm (54) and a mechanical direct acting tappet (210); all of which include means (44, 144, 244, 344) for conducting oil from the exterior of the cam follower to the roller cavity.

公开(公告)号：EP0502241B1

公开(公告)日：1994-05-25

申请号：EP91116179.2

申请日：1991-09-24

Applicant: Firma Carl Freudenberg

Inventor： Budde, Volker

IPC: F01L1/24

CPC classification number: F01L1/25 ,  F01L1/245

公开(公告)号：EP0535275A1

公开(公告)日：1993-04-07

申请号：EP91308958.7

申请日：1991-09-30

Applicant: FEULING ENGINEERING, Inc.

Inventor： Feuling, James J.

IPC: F01L31/22 ,  F01L1/24 ,  F01M1/12 ,  F01M1/20

CPC classification number: F01M1/20 ,  F01L1/245 ,  F01L9/023 ,  F01L13/0015 ,  F01M1/12

Abstract: In an internal combustion engine utilizing hydraulic valve lifters, a source of pressurized oil at a higher than normally expected pressure is supplied thereto. The source utilizes the engine lubricating oil from the engine sump or crank case and the spent oil from the hydraulic lifters is returned to the engine crank case. The oil delivered to the lifter galley is derived from either an engine oil pump which produces a higher pressure oil flow then conventionally desired for normal engine operation, a separate or oil pump oil pumps especially for the valve galley. The pressure setting of the oil output from either pump is determined by the engine RPM, ie. higher pressure with higher engine RPM or from pump speed if an electricly operated separate pump is employed. The exact oil pressure level delivered to the valve galley or to individual valve galleys is determined by an on board computer (engine controller) monitoring the manifold pressure, engine RPM and throttle position so that the hydraulic lifter plunger is always in contact with the valve stem regardless of engine RPM or pump motor speed and variable and different amounts oil pressure and resulting valve lift can be achieved at various selected locations on the valve lift curve created by the valve's camshaft lobe. Variable high oil pressure is supplied only to the lifters to selectively alter their normal degree of valve lift at any location along the valve's cam operating curve while the remaining oil delivery areas of the engine operate at their conventional or normally expected oil pressure levels. In event of a failure of normal engine oil pump operation when a second auxiliary pump for galley delivery is used, an electric value is provided to channel oil from the auxiliary pump to the engine areas requiring lubrication.

Abstract translation: 在利用液压气门挺杆的内燃机中，向其供给高于正常预期压力的加压油源。 该源使用来自发动机油底壳或曲轴箱的发动机润滑油，并且来自液压挺杆的废油返回到发动机曲轴箱。 输送到升降机厨房的油源自发动机油泵，其产生更高压力的油流，然后常规地用于正常发动机操作，单独的或油泵油泵，特别是用于阀门厨房。 从任一个泵输出的油的压力设定由发动机RPM决定，即。 如果采用电动操作的独立泵，则具有较高的发动机RPM或更高的压力。 输送到阀门厨房或单独阀门厨房的确切的油压水平由监控歧管压力，发动机转速和节气门位置的车载计算机（发动机控制器）确定，使得液压升降器柱塞总是与阀杆 不管发动机RPM或泵电机的速度如何，可以通过阀的凸轮轴凸轮产生的气门升程曲线上的各种选择位置实现油压和所产生的气门升程。 可变的高油压仅被提供给升降机，以在沿着阀的凸轮操作曲线的任何位置选择性地改变其正常的升程程度，而发动机的剩余油输送区域以其常规或正常预期的油压水平运行。 如果在使用厨房送货的第二辅助泵的情况下发生正常的发动机油泵操作的故障，则提供电气值以将油从辅助泵引导到需要润滑的发动机区域。