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    Hydraulic lash adjuster
    21.
    发明授权
    Hydraulic lash adjuster 有权
    液压间隙调节器

    公开(公告)号：US06325034B1

    公开(公告)日：2001-12-04

    申请号：US09730915

    申请日：2000-12-06

    Applicant: Thomas C. Edelmayer

    Inventor： Thomas C. Edelmayer

    IPC: F01L124

    CPC classification number: F01L1/2405 ,  F01L1/245

    Abstract: A hydraulic lash adjuster (11) disposed within a bore (14) defined by an internal combustion engine (16), the hydraulic lash adjuster (11) comprising a ball plunger (12) including a body portion (13), whereby the body portion (13) is reciprocable in the bore (14) as said ball plunger (12) reciprocates between a relatively retracted position and a relatively extended position. The hydraulic lash adjuster (11) further comprising a leakdown plunger assembly (17) disposed within the body portion (13) and disposed downward in response to downward movement of the ball plunger (12) and said body portion (13). The leakdown plunger assembly (17) has a bottom portion (34) disposed toward a bottom (20) of the bore (14), to define a high pressure chamber (28). In the lash adjuster (11) of the invention, the ball plunger (12) and the body portion (13) comprise a single, integral, formed member. The body portion (13) defines an axial length (L) equal to a major portion of the entire axial length of the bore (14), and further defines an outside diameter (D) wherein the axial length (L) is from about 1.0 to about 1.4 times the outside diameter (D).

    Abstract translation: 液压间隙调节器（11）设置在由内燃机（16）限定的孔（14）内，液压间隙调节器（11）包括一个包括主体部分（13）的球塞（12） （13）在所述滚珠柱塞（12）在相对缩回位置和相对延伸位置之间往复运动时在所述孔（14）中往复移动。 液压间隙调节器（11）还包括设置在主体部分（13）内并且响应于球柱塞（12）和所述主体部分（13）的向下运动而向下设置的泄漏柱塞组件（17）。 泄漏柱塞组件（17）具有朝向孔（14）的底部（20）设置的底部（34），以限定高压室（28）。 在本发明的间隙调节器（11）中，球形活塞（12）和主体部分（13）包括单个整体形成的构件。 主体部分（13）限定等于孔（14）的整个轴向长度的主要部分的轴向长度（L），并且还限定外径（D），其中轴向长度（L）为约1.0 至外径的约1.4倍（D）。

    Sealed hydraulic lifter for extreme angle operation
    23.
    发明授权
    Sealed hydraulic lifter for extreme angle operation 有权
    密封液压升降器，用于极角操作

    公开(公告)号：US06318324B1

    公开(公告)日：2001-11-20

    申请号：US09208600

    申请日：1998-12-07

    Applicant: Mark Koeroghlian ,  Alan Falkowski

    Inventor： Mark Koeroghlian ,  Alan Falkowski

    IPC: F01L124

    CPC classification number: F01L1/146 ,  F01L1/24 ,  F01L1/2422 ,  F01L1/245

    Abstract: A hydraulic lash adjuster for an engine is provided that includes a resilient seal received over a plunger assembly above a fluid return aperture in the plunger body. The hollow interior of the pushrod which supplies the hydraulic lash adjuster with fluid provides a secondary low pressure fluid cavity which allows the overall length of the hydraulic lash adjuster to be shortened, thus removing mass from the valve train and improving the valve train dynamics. This configuration prevents fluid from escaping the lash adjuster, allowing the lash adjuster to be positioned in the engine over a wider range of operating angles. Supplying fluid from the pushrod also eliminates the need to machine a fluid supply bore into the body of the hydraulic lash adjuster as well as the need to orient the fluid supply bore to a fluid gallery in the engine block.

    Abstract translation: 提供了一种用于发动机的液压间隙调节器，其包括接收在柱塞组件上方的柱塞组件上的弹性密封件，位于柱塞体内的流体返回孔的上方。 用液体提供液压间隙调节器的推杆的中空内部提供了二级低压流体腔，其允许液压间隙调节器的总长度被缩短，从而从阀门排出质量并改善气门机构动力学。 这种配置可防止液体从间隙调节器中逸出，从而允许间隙调节器在更宽的操作角度范围内定位在发动机中。 从推杆供应流体还消除了将流体供应孔加工到液压间隙调节器的主体中的需要，以及需要将流体供应孔定向到发动机缸体中的流体槽。

    Retainer groove and variable resistance assembly
    25.
    发明授权
    Retainer groove and variable resistance assembly 失效
    保持槽和可变电阻组件

    公开(公告)号：US06209499B1

    公开(公告)日：2001-04-03

    申请号：US09399463

    申请日：1999-09-20

    Applicant: Nathan B. Owen ,  Daniel Patrick O'Neill ,  Thomas Howard Lichti

    Inventor： Nathan B. Owen ,  Daniel Patrick O'Neill ,  Thomas Howard Lichti

    IPC: F01L1245

    CPC classification number: F01L1/25 ,  F01L1/18 ,  F01L1/2411 ,  F01L1/245

    Abstract: A C-clip retainer is provided in a groove of a piston, such as for an engine hydraulic valve lash adjuster, to allow installation and removably retain the piston in a cylinder of an associated assembly. The groove has a novel shape including an inner surface that is angled relative to a longitudinal axis of the piston to provide a larger groove diameter at a first axial end surface and a smaller diameter at an opposite second axial end surface of the groove. Upon installation, the clip is urged into the smaller diameter, allowing easier installation, but upon removal the clip is expanded by forcing it to the larger diameter, thereby increasing the retention force on the piston. The first axial end surface may also be formed with a back angle that reduces forces of the associated cylinder edge that tend to compress the retainer into the groove, thus further increasing the piston retention force.

    Abstract translation: C形夹保持器设置在活塞的凹槽中，例如用于发动机液压阀间隙调节器，以允许安装并将活塞可拆卸地保持在相关组件的气缸中。 凹槽具有新颖的形状，其包括相对于活塞的纵向轴线成角度的内表面，以在凹槽的相对的第二轴向端表面处在第一轴向端面处提供更大的凹槽直径和较小的直径。 在安装时，夹子被推入更小的直径，允许更容易的安装，但是在移除时，夹子通过迫使其扩大到更大的直径而膨胀，从而增加了活塞上的保持力。 第一轴向端面还可以形成有后角，其减小倾向于将保持器压入槽中的相关联的气缸边缘的力，从而进一步增加活塞保持力。

    Engine valve lift mechanism
    26.
    发明授权
    Engine valve lift mechanism 失效
    发动机气门升程机构

    公开(公告)号：US5934232A

    公开(公告)日：1999-08-10

    申请号：US97117

    申请日：1998-06-12

    Applicant: Cynthia Ann Greene ,  Mark James Spath ,  Michael James Fox

    Inventor： Cynthia Ann Greene ,  Mark James Spath ,  Michael James Fox

    IPC: F01L1/14 ,  F01L1/245 ,  F01L13/00

    CPC classification number: F01L1/14 ,  F01L1/146 ,  F01L1/245 ,  F01L13/0036 ,  F01L2105/00 ,  F01L2107/00

    Abstract: Valve lift mechanism for an engine includes a two step variable valve lifter having roller followers for engaging multiple cams on an associated camshaft of the engine and an anti-rotation guide mounted in the engine externally of a cylindrical bore receiving the lifter. The guide engages an axial guide recess in the lifter body without requiring a corresponding recess in the bore. The lifter also has a saddle in a central low lift cam follower engagable by lock pins in an annular body of an associated high lift cam follower to lock the followers together for high valve lift operation. The saddle is disposed axially between a follower roller and a high pressure chamber of a hydraulic lash adjuster of the low lift cam follower so that lock pin loads are transmitted as compressive forces through the low lift follower. The high lift follower rollers are received in pockets having sides that are crowned by shallow convex curvatures defining axially extending ridges which limit axial motion of the rollers so that the rubbing surface and associated friction are limited. Various additional specific features are disclosed. Application of the features to other valve lifters and cam followers is anticipated.

    Abstract translation: 用于发动机的气门升程机构包括两级可变气门升降器，其具有用于接合发动机的相关凸轮轴上的多个凸轮的滚子跟随器，以及安装在发动机外部的反转引导件，所述反转引导件在接收升降器的圆柱形孔的外部。 引导件与升降机主体中的轴向引导凹部接合，而不需要在孔中相应的凹槽。 升降机还具有在中央低升程凸轮从动件中的鞍座，其通过相关联的高升程凸轮从动件的环形体中的锁定销接合，以将跟随器锁定在一起用于高气门升程操作。 鞍座轴向地布置在低升程凸轮从动件的液压间隙调节器的从动辊和高压室之间，使得锁定销负载作为压力通过低升程从动件传递。 高升降从动辊被容纳在具有限定轴向延伸的脊的浅凸曲率的顶部的凹部中，该凹凸限制了辊的轴向运动，使得摩擦表面和相关联的摩擦受到限制。 公开了各种附加的特定特征。 预期将特征应用于其他气门挺杆和凸轮从动件。

    Valve control means
    27.
    发明授权
    Valve control means 失效
    阀门控制装置

    公开(公告)号：US5253621A

    公开(公告)日：1993-10-19

    申请号：US44816

    申请日：1993-04-08

    Applicant: Clive Dopson ,  Jeffrey Allen

    Inventor： Clive Dopson ,  Jeffrey Allen

    IPC: F01L1/14 ,  F01L1/245 ,  F01L1/25 ,  F01L1/26 ,  F01L13/00 ,  F02F7/00 ,  F01L1/34

    CPC classification number: F01L1/143 ,  F01L1/146 ,  F01L1/245 ,  F01L1/25 ,  F01L1/267 ,  F01L13/0005 ,  F01L13/0031 ,  F01L13/0036 ,  F01L13/0063 ,  F01L2105/00 ,  F02F7/006

    Abstract: The invention relates to valve control means for a push-rod internal combustion engine. With reference to FIG. 8 of the drawings, the valve control means comprises valve means, cam means comprising a camshaft having a first cam member and a second cam member having a different profile from the first cam member, and means for transmitting reciprocating movement to the valve means from the cam means. The means for transmitting reciprocating movement comprises a first cam follower member in engagement with the push-rod and a second cam follower member movable relative to the first cam follower member, and locking means to enable the follower members to be linked to move together. When the cam follower members are not linked the valve means is controlled by the first cam follower member in engagement with and following the profile of the first cam member, and when the cam follower members are linked the valve means is controlled by the second cam follower member in engagement with and following the profile of the second cam member.

    Abstract translation: 本发明涉及一种用于推杆式内燃机的阀控制装置。 参考图1。 如图8所示，阀控制装置包括阀装置，凸轮装置包括凸轮轴，凸轮轴具有第一凸轮构件和与第一凸轮构件具有不同轮廓的第二凸轮构件，以及用于将往复运动传递到阀装置的装置， 凸轮意味着。 用于传送往复运动的装置包括与推杆接合的第一凸轮从动件和可相对于第一凸轮从动件可移动的第二凸轮从动件，以及锁定装置，以使从动件能够一起移动。 当凸轮从动件未联接时，阀装置由与第一凸轮构件的轮廓接合并跟随第一凸轮构件的轮廓的第一凸轮从动件控制，并且当凸轮从动件联接时，阀装置由第二凸轮从动件 构件与第二凸轮构件的轮廓接合并跟随其。

    Outlet valve lifter for an internal combustion engine
    29.
    发明授权
    Outlet valve lifter for an internal combustion engine 失效
    内燃机出口阀门

    公开(公告)号：US5161500A

    公开(公告)日：1992-11-10

    申请号：US827799

    申请日：1992-01-29

    Applicant: Heribert Kubis ,  Dieter Wittman

    Inventor： Heribert Kubis ,  Dieter Wittman

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

    CPC classification number: F01L13/06 ,  F01L1/245

    Abstract: An outlet valve lifter for internal combustion engine is described. In order to increase the braking power of the internal combustion engine it is necessary that the outlet valve is opened during the compression cycle. Advantageously, this is achieved by a hydraulic outlet valve lifter which is actuated by an external pressure source. Due to the pressure of the compressed air shortly before the ignition top dead center position great forces are acting on the outlet valve and accordingly on the outlet valve lifter. These forces, in the form of hydraulic pressure, act via the inner portion of the outlet valve lifter on the external pressure source and may cause damage. Therefore, the outlet valve lifter is provided with an inner portion which is lifted by a certain stroke due to the pressure actuation via a second pressure chamber so that the outlet valve opens. When the pressure within the second pressure chamber increases as a function of the forces acting on the outlet valve and surpasses the hydraulic pressure generated by the external pressure source, a ball valve closes the second pressure chamber so that the hydraulic pressure generated therein may not be transmitted to the external pressure source.

    Abstract translation: 描述了用于内燃机的出气阀提升器。 为了增加内燃机的制动功率，需要在压缩循环期间打开出口阀。 有利地，这通过由外部压力源致动的液压出口阀提升器来实现。 由于压缩空气的压力在点火之前不久，上止点位置，大的力作用在出口阀上，因此作用在出口阀升降器上。 这些力以液压的形式通过外部压力源上的出口阀提升器的内部部分作用，并可能造成损坏。 因此，出气阀提升器具有内部，该内部部分由于经由第二压力室的压力致动而被提升一定行程，从而使出口阀打开。 当第二压力室内的压力作为作用在出口阀上的力的函数而增加并超过由外部压力源产生的液压时，球阀关闭第二压力室，使得其中产生的液压不可能 传输到外部压力源。

    Lash adjusted for engine valve actuator assembly
    30.
    发明授权
    Lash adjusted for engine valve actuator assembly 失效
    用于发动机气门执行器组件的间隙调节

    公开(公告)号：US5088458A

    公开(公告)日：1992-02-18

    申请号：US649643

    申请日：1991-02-01

    Applicant: Russell J. Wakeman ,  Stephen F. Shea

    Inventor： Russell J. Wakeman ,  Stephen F. Shea

    IPC: F01L1/16 ,  F01L1/245

    CPC classification number: F01L1/16 ,  F01L1/245

    Abstract: A valve damping piston and a cam follower piston have telescopic sliding fits in opposite ends of a through-bore in the lifter housing. A pressure chamber is cooperatively defined within the housing between the two pistons, and is communicated to the engine oil supply. A lash adjusting piston has a telescopical sliding fit with the exterior axial end of the damping piston, and the two cooperatively define between themselves a lash adjusting chamber. The lash adjusting chamber is communicated to the pressure chamber by an axial segment of the telescopic sliding fit of the damping piston to the housing. The clearance provided by this axial segment creates a flow restriction that results in the pressure in the lash adjusting chamber being appreciably lower, 50% for example, than the pressure in the pressure chamber. The damping piston contains a circumferential groove that is directly communicated to the termination of the axial segment. A radial and then an axial hole in the damper piston communicate the groove to the lash adjusting chamber. 00

    Abstract translation: 阀减振活塞和凸轮从动件活塞在升降机壳体中的通孔的相对端部具有伸缩滑动配合。 在两个活塞之间的壳体内协同地限定压力室，并且将压力室连通到发动机机油供应。 间隔调节活塞具有与阻尼活塞的外部轴向端部的可伸缩滑动配合，并且两者在它们之间协调地限定间隙调节室。 间隙调节室通过阻尼活塞的可伸缩滑动配合的轴向段与壳体连通到压力室。 由该轴向段提供的间隙产生流动限制，其导致间隙调节室中的压力明显比压力室中的压力低50％（例如50％）。 阻尼活塞包含直接连通到轴向段终端的圆周槽。 阻尼器活塞中的径向然后轴向孔将沟槽连通到间隙调节室。

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