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公开(公告)号：US6148780A
公开(公告)日：2000-11-21
申请号：US282738
申请日：1999-03-31
CPC分类号： F01L1/053 , F01L1/18 , F01L1/24 , F01L1/2411 , F01L2001/187
摘要： A hydraulic lash adjuster for disposition between a rocker arm and a valve stem of an internal combustion engine comprises a body having an axially extending neck depending from a lower end thereof. An enlarged head portion extends from the terminal end of the neck and has a semispherical lower surface. A foot assembly includes a disk shaped foot with an upper surface, a lower surface and a cylindrical sidewall defining an outer perimeter. The upper surface has a socket configured to receive the enlarged head. The foot assembly further includes an inverted cup shaped retainer having a cylindrical wall and radial leaves extending inwardly from the upper end of the cylindrical wall, defining a central opening. The axially extending neck extends through the central opening and the opening has a diameter smaller than the enlarged head. The cylindrical wall of the retainer is parallel to the cylindrical sidewall of the foot and is sized to define a parallel frictional force therebetween sufficient to maintain engagement of the foot and retainer. The retainer operates to prevent disassembly of the body and the foot assembly.
摘要翻译： 用于在内燃机的摇臂和阀杆之间配置的液压间隙调节器包括具有从其下端悬垂的轴向延伸的颈部的主体。 扩大的头部从颈部的终端延伸并且具有半球形的下表面。 脚组件包括具有上表面的盘形脚，下表面和限定外周的圆柱形侧壁。 上表面具有构造成容纳扩大头部的插座。 脚组件还包括倒杯形保持器，其具有圆柱形壁和径向叶片，其从圆柱形壁的上端向内延伸，限定中心开口。 轴向延伸的颈部延伸穿过中心开口，并且开口的直径小于扩大的头部。 保持器的圆柱形壁平行于脚的圆柱形侧壁并且其尺寸被设计成在其间限定足够的平行摩擦力，以保持脚和保持器的接合。 保持器操作以防止主体和脚组件的拆卸。
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公开(公告)号：US20080072855A1
公开(公告)日：2008-03-27
申请号：US11904010
申请日：2007-09-25
申请人： Cynthia A Tawaf , Andrew J. Lipinski , William D. Bauman , Carl R. Kangas , Albert C. Stone , Eric G. Wilusz , Hermes Fernandez , Nick J. Hendriksma
发明人： Cynthia A Tawaf , Andrew J. Lipinski , William D. Bauman , Carl R. Kangas , Albert C. Stone , Eric G. Wilusz , Hermes Fernandez , Nick J. Hendriksma
IPC分类号： F01L1/34
CPC分类号： F01L1/185 , F01L13/0036 , F01L2001/186 , F01L2103/00 , F01L2105/02
摘要： A two-step roller finger follower having a high-lift follower portion that pivots on a pivot shaft disposed on a low-lift follower portion, and having a lost-motion spring disposed between the high-lift follower and the low-lift follower to bias the high-lift follower toward the high lift cam lobe. Various bearing cups and roller shaft sleeve embodiments are shown, all of which allow for improved shaft and needle bearing arrangements. A z-stop formed by the bearing cups and/or the shaft sleeve limits the range of travel of the high-lift follower with respect to the low-lift follower. Various z-stop embodiments are provided including a non-contacting roller shaft sleeve that grounds the high-lift follower to the low-lift follower independent of the roller shaft.
摘要翻译： 一种具有高升降从动件部分的两步辊指随动件，其在设置在低升力从动部分上的枢轴上枢转，并且具有设置在高升降从动件和低升力从动件之间的失速弹簧， 将高升降跟随器偏压向高升程凸轮凸角。 示出了各种轴承杯和滚子轴套实施例，所有这些都允许改进的轴和滚针轴承装置。 由轴承杯和/或轴套形成的Z形止动件限制了高升降从动件相对于低升力从动件的行程范围。 提供了各种z停止实施例，其包括非接触式滚子轴套筒，其将高升降从动件接地到低升程跟随器，而与滚子轴无关。
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公开(公告)号：US07093575B2
公开(公告)日：2006-08-22
申请号：US10667556
申请日：2003-09-22
IPC分类号： F01L1/18
CPC分类号： F01L13/0005 , F01L1/146 , F01L1/24 , F01L2103/00 , F01L2105/00 , Y10T74/2107
摘要： An improved pin housing sub-assembly configured for reliable assembly and stability as an intermediate sub-assembly. The length of the plunger return spring is greater than the diameter of the spring well in the pin housing, such that the spring cannot be accidentally installed sideways in the well. During assembly, the non-compressed longer spring places the pushrod seat flush with the end of the pin housing. A shallow annular groove is provided in the inner wall of the pin housing near the outer end thereof, and an expansion ring may be installed therein when the plunger return spring is slightly compressed. The expansion ring holds the sub-assembly together as an intermediate but is displaced by the spring tower in a subsequent assembly step to become the locking ring between the pin housing and the spring tower, as in the prior art.
摘要翻译： 一种改进的销壳体子组件，其构造为用于作为中间子组件的可靠的组装和稳定性。 柱塞复位弹簧的长度大于销壳体中弹簧槽的直径，使得弹簧不会意外地侧向安装在井中。 在组装期间，非压缩的较长的弹簧将推杆座与销壳的端部齐平。 在其外端部的销壳体的内壁上设置浅的环状槽，当柱塞复位弹簧稍微压缩时，可以在其中安装膨胀环。 膨胀环将子组件作为中间件保持在一起，但是在随后的组装步骤中被弹簧塔移位，以成为现有技术中的销壳和弹簧塔之间的锁定环。
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公开(公告)号：US06497207B2
公开(公告)日：2002-12-24
申请号：US09840375
申请日：2001-04-23
IPC分类号： F01L1300
CPC分类号： F01L13/0005 , F01L1/146 , F01L1/24 , F01L13/0031 , F01L2105/00 , F01L2820/01 , Y10T74/2107
摘要： A deactivation hydraulic valve lifter includes an elongate lifter body having a substantially cylindrical inner wall. The inner wall defines at least one annular pin chamber therein. The lifter body has a first end configured for engaging a cam of an engine. An elongate pin housing includes a substantially cylindrical pin housing wall and pin housing bottom. The pin housing wall includes an inner surface and an outer surface. The pin housing bottom defines a radially directed pin bore therethrough. The pin housing is concentrically disposed within the inner wall of the lifter body such that the outer surface of the pin housing wall is adjacent to at least a portion of the inner wall of the lifter body. A plunger having a substantially cylindrical plunger wall with an inner surface and an outer surface is concentrically disposed within the pin housing such that the outer surface of the plunger wall is adjacent to at least a portion of the inner surface of the pin housing wall. A deactivation pin assembly is disposed within the pin bore and includes two pin members. The pin members are biased radially outward relative to each other. A portion of each pin member is disposed within the annular pin chamber to thereby couple the lifter body to the pin housing. The pin members are configured for moving toward each other when the pin chamber is pressurized, thereby retracting the pin members from within the annular pin chamber and decoupling the lifter body from the pin housing.
摘要翻译： 一种停用液压气门挺杆包括具有基本圆柱形内壁的细长升降机体。 内壁在其中限定至少一个环形销室。 提升机体具有构造成用于接合发动机的凸轮的第一端。 细长销壳体包括基本上圆柱形的销壳体壁和销壳体底部。 销壳体壁包括内表面和外表面。 销壳体底部限定穿过其中的径向定位的销孔。 销壳体同心地设置在升降机主体的内壁内，使得销壳体壁的外表面与升降机主体的内壁的至少一部分相邻。 具有内表面和外表面的基本上圆柱形的柱塞壁的柱塞同心地设置在销壳体内，使得柱塞壁的外表面与销壳体壁的内表面的至少一部分相邻。 钝销销组件设置在销孔内并且包括两个销构件。 销构件相对于彼此径向向外偏置。 每个销构件的一部分设置在环形销腔内，从而将升降器主体联接到销壳体。 销构件被构造成当销腔被加压时朝向彼此移动，从而从销环室内缩回销构件并且将升降器本体与销壳体分离。
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公开(公告)号：US07614375B2
公开(公告)日：2009-11-10
申请号：US11904010
申请日：2007-09-25
申请人： Cynthia A. Tawaf , Andrew J. Lipinski , William D. Bauman , Carl R. Kangas , Albert C. Stone , Eric G. Wilusz , Hermes Fernandez , Nick J. Hendriksma
发明人： Cynthia A. Tawaf , Andrew J. Lipinski , William D. Bauman , Carl R. Kangas , Albert C. Stone , Eric G. Wilusz , Hermes Fernandez , Nick J. Hendriksma
IPC分类号： F01L1/18
CPC分类号： F01L1/185 , F01L13/0036 , F01L2001/186 , F01L2103/00 , F01L2105/02
摘要： A two-step roller finger follower having a high-lift follower portion that pivots on a pivot shaft disposed on a low-lift follower portion, and having a lost-motion spring disposed between the high-lift follower and the low-lift follower to bias the high-lift follower toward the high lift cam lobe. Various bearing cups and roller shaft sleeve embodiments are shown, all of which allow for improved shaft and needle bearing arrangements. A z-stop formed by the bearing cups and/or the shaft sleeve limits the range of travel of the high-lift follower with respect to the low-lift follower. Various z-stop embodiments are provided including a non-contacting roller shaft sleeve that grounds the high-lift follower to the low-lift follower independent of the roller shaft.
摘要翻译： 一种具有高升降从动件部分的两步辊指随动件，其在设置在低升力从动部分上的枢轴上枢转，并且具有设置在高升降从动件和低升力从动件之间的失速弹簧， 将高升降跟随器偏压向高升程凸轮凸角。 示出了各种轴承杯和滚子轴套实施例，所有这些都允许改进的轴和滚针轴承装置。 由轴承杯和/或轴套形成的Z形止动件限制了高升降从动件相对于低升力从动件的行程范围。 提供了各种z停止实施例，其包括非接触式滚子轴套筒，其将高升降从动件接地到低升程跟随器，而与滚子轴无关。
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公开(公告)号：US20090126527A1
公开(公告)日：2009-05-21
申请号：US11986532
申请日：2007-11-21
CPC分类号： F01L1/18 , F01L13/00 , F01L13/0036 , F01L2105/00 , F01L2105/02 , F16C19/36 , F16C2360/18 , Y10T74/2107
摘要： A bearing design for a roller finger follower assembly includes an outer arm having a pair of openings, a shaft extending across the outer arm through the openings, a pair of lateral follower rollers mounted at opposite ends of the shaft; and a pair of bearings rotatably supporting the lateral follower rollers. The shaft is not a member of the bearing. Therefore, a force acting on the rollers travels through the rollers directly into the bearing and into the outer arm which reduces the potential for the rollers to become detached from the shaft. An inboard bearing design involves an inner bearing race integrated into the rollers. An outboard bearing design involves an inner bearing race integrated in the outer arm and an outer bearing race integrated into the rollers.
摘要翻译： 一种用于辊指随动器组件的轴承设计包括具有一对开口的外臂，穿过所述开口延伸穿过外臂的轴，安装在所述轴的相对端的一对侧向从动辊; 以及可旋转地支撑横向从动辊的一对轴承。 轴不是轴承的成员。 因此，作用在辊上的力通过辊直接进入轴承并进入外臂，这降低了辊从轴脱离的可能性。 内侧轴承设计涉及集成到滚子中的内部轴承座圈。 外侧轴承设计涉及集成在外臂中的内部轴承座圈和集成到滚子中的外部轴承座圈。
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公开(公告)号：US07721694B2
公开(公告)日：2010-05-25
申请号：US11490370
申请日：2006-07-20
IPC分类号： F01L1/18
CPC分类号： F01L13/0005 , F01L1/18 , F01L13/0036 , F16L55/13
摘要： A lock pin bore in a two-step rocker arm assembly contains a hydraulically-actuable lock pin. A return spring urges the lock pin toward an unlatched mode. The bore has one or more annular grooves formed near the outer end of the bore. A plug, formed preferably of a soft metal, is pressed as a hydraulic seal into the bore. During assembly, the final position of the lock pin within the bore is set by positioning a stopping assembly fixture into the locking end of the bore. The plug is pressed into the bore until contact is made with the lock pin and the lock pin engages the fixture. The plug is radially deformed into the annular groove(s) to anchor the plug and fix the outer limit of travel of the locking pin and the compressive load on the return spring.
摘要翻译： 两步摇臂组件中的锁销孔包含液压可致动的锁销。 复位弹簧将锁定销推向解锁模式。 该孔具有在孔的外端附近形成的一个或多个环形槽。 优选由软金属形成的塞子作为液压密封件被压入孔中。 在组装期间，锁定销在孔内的最终位置通过将止动组件夹具定位在孔的锁定端中来设定。 将插头压入孔中，直到与锁定销接触并且锁定销与夹具接合。 塞子径向变形成环形槽，以固定插头，并将锁定销的外部行程限制和复位弹簧上的压缩载荷固定。
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公开(公告)号：US20100059005A1
公开(公告)日：2010-03-11
申请号：US12231919
申请日：2008-09-08
申请人： Albert C. Stone , John R. Socha
发明人： Albert C. Stone , John R. Socha
IPC分类号： F01L1/34
CPC分类号： F01L13/0063 , F01L1/2405 , F01L2013/0068 , F01L2105/00 , F01L2820/032
摘要： An apparatus for adjusting individual valve lift comprising a control arm assembly disposed between the cam lobes and the valve rockers for a multi-valve train. The control arm at each valve includes a driven gear. An actuator shaft includes a mating drive gear at each driven gear for rotating each control arm to vary the overall lift of the valves. In the prior art, the mating drive gears are fixed to the actuator shaft at identical fixed orientations. In accordance with the present invention, each mating drive gear is rotatably adjustable on the actuator shaft to permit changing of the orientation of each gear with respect to the actuator shaft, thereby changing the contact point of the control arm with its respective cam lobe. The lifts of the individual valves may be individually adjusted to provide equal air flow through all the valves in a multi-valve train.
摘要翻译： 一种用于调节单个气门升程的装置，包括设置在凸轮凸角和用于多气门机构的气门摇杆之间的控制臂组件。 每个阀门上的控制臂包括从动齿轮。 致动器轴包括在每个从动齿轮处的配合驱动齿轮，用于旋转每个控制臂以改变阀的整体升程。 在现有技术中，配合驱动齿轮以相同的固定取向固定在致动器轴上。 根据本发明，每个配合驱动齿轮在致动器轴上可旋转地调节，以允许改变每个齿轮相对于致动器轴的方向，从而改变控制臂与其相应的凸轮凸角的接触点。 各个阀的升降机可以单独调节，以提供通过多气门列车中的所有阀的相等空气流量。
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公开(公告)号：US20080017152A1
公开(公告)日：2008-01-24
申请号：US11490370
申请日：2006-07-20
CPC分类号： F01L13/0005 , F01L1/18 , F01L13/0036 , F16L55/13
摘要： A lock pin bore in a two-step rocker arm assembly contains a hydraulically-actuable lock pin. A return spring urges the lock pin toward an unlatched mode. The bore has one or more annular grooves formed near the outer end of the bore. A plug, formed preferably of a soft metal, is pressed as a hydraulic seal into the bore. During assembly, the final position of the lock pin within the bore is set by positioning a stopping assembly fixture into the locking end of the bore. The plug is pressed into the bore until contact is made with the lock pin and the lock pin engages the fixture. The plug is radially deformed into the annular groove(s) to anchor the plug and fix the outer limit of travel of the locking pin and the compressive load on the return spring.
摘要翻译： 两步摇臂组件中的锁销孔包含液压可致动的锁销。 复位弹簧将锁定销推向解锁模式。 该孔具有在孔的外端附近形成的一个或多个环形槽。 优选由软金属形成的塞子作为液压密封件被压入孔中。 在组装期间，锁定销在孔内的最终位置通过将止动组件夹具定位在孔的锁定端中来设定。 将插头压入孔中，直到与锁定销接触并且锁定销与夹具接合。 塞子径向变形成环形槽，以固定插头，并将锁定销的外部行程限制和复位弹簧上的压缩载荷固定。
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公开(公告)号：US06578535B2
公开(公告)日：2003-06-17
申请号：US10229350
申请日：2002-08-26
申请人： Mark J. Spath , Albert C. Stone , Carl R. Kangas
发明人： Mark J. Spath , Albert C. Stone , Carl R. Kangas
IPC分类号： F01L134
CPC分类号： F01L13/0031 , F01L1/146 , F01L1/24 , F01L13/0005 , F01L2105/00
摘要： A valve-deactivation hydraulic valve lifter including a conventional hydraulic lash adjuster means disposed within a pin housing slidably disposed in a lifter body. A transverse bore in the pin housing contains opposed locking pins for selectively engaging a circumferential groove including a locking surface in the lifter body whereby the lifter body and the pin housing may be engaged or disengaged to activate or deactivate a pushrod controlling an engine valve. Ends of the locking pins are spherical so that the pins cannot become stuck in corners in the groove. The groove corner is rounded be either a positive radius or a negative radius to remove a sharp corner known to be an originating and propagating point for stress failure of the lifter body in prior art lifters. The edge of each pin and the edge of the locking surface are chamfered to prevent damage to these edges during locking and unlocking. A second surface intermediate an outer surface of the pin housing and the transverse bore is also provided. A retaining ring holding the lifter assembly together may be augmented by a spacer whose thickness is selected to yield a predetermined amount of mechanical lash in the deactivation lifter.
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