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。

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。

公开(公告)号：US06966291B1

公开(公告)日：2005-11-22

申请号：US10975866

申请日：2004-10-28

申请人： Thomas H. Fischer ,  Andrew J. Lipinski ,  Timothy W. Kunz ,  Nick J. Hendriksma

发明人： Thomas H. Fischer ,  Andrew J. Lipinski ,  Timothy W. Kunz ,  Nick J. Hendriksma

IPC分类号： F01L1/18 ,  F01L13/00

CPC分类号： F01L13/0036 ,  F01L1/14 ,  F01L1/185 ,  F01L2001/186 ,  F01L2105/00

摘要： In a two-step roller finger cam follower, a slider arm for engaging a high-lift cam lobe is pivotally mounted to the body and can variably engage a latch pin slidably disposed in a latch pin channel. A second channel in the body opens onto the slider arm and contains a timing pin that rides on an eccentric surface of the slider arm to extend or retract the timing pin. A bore between the latch pin channel and the timing pin channel contains a ball controlled by the timing pin to lock the latch pin into an engaged or disengaged position. The cam lobe has an undercut region such that the latch pin is allowed to move between engaged and disengaged position only when the slider arm is in the undercut region of the cam lobe. The latch pin can move only when the timing pin permits.

摘要翻译： 在两步辊指凸轮从动件中，用于接合高升程凸轮凸角的滑动臂枢转地安装到主体，并且可变地接合可滑动地设置在闩锁销通道中的闩锁销。 主体中的第二通道向滑块臂开放，并包含一个定时销，该定时销骑在滑块臂的偏心表面上，以延伸或缩回定时销。 闩锁销通道和定时销通道之间的孔包含由定时销控制的球，以将闩锁销锁定到接合或分离位置。 凸轮凸角具有底切区域，使得只有当滑块臂处于凸轮凸角的底切区域中时，允许闩锁销在接合位置和脱离位置之间移动。 锁定销只能在定时销允许的情况下移动。

公开(公告)号：US07305951B2

公开(公告)日：2007-12-11

申请号：US11125360

申请日：2005-05-09

申请人： Hermes A. Fernandez ,  Andrew J. Lipinski ,  Nick J. Hendriksma ,  Thomas H. Fischer ,  Timothy W. Kunz

发明人： Hermes A. Fernandez ,  Andrew J. Lipinski ,  Nick J. Hendriksma ,  Thomas H. Fischer ,  Timothy W. Kunz

IPC分类号： F01L1/18

CPC分类号： F01L13/0036 ,  F01L1/185 ,  F01L2001/186 ,  F01L2001/467 ,  Y10T74/20882 ,  Y10T74/2107

摘要： A two-step roller finger follower having a high-lift follower portion that rotates relative to a low-lift follower portion about a pivot shaft, including a lost-motion compression spring disposed in a linear bore formed in the high-lift portion to exert force against an curved pad on the back side of the valve pallet of the low-lift portion. The spring is retained and guided in its bore by a spring retainer having a planar bottom for engaging the curved pad. Preferably the retainer is a cup positioned in the spring bore such that the stroke of the cup is limited, to prevent leak-down of the associated hydraulic lash adjuster. Driving the spring by a linear-acting retainer in a linear bore causes the spring to be compressed linearly, resulting in a highly stable and predictable spring rate.

摘要翻译： 一种具有高升力从动件部分的两步辊指随动件，其相对于低升力从动件部分围绕枢转轴线旋转，包括设置在形成在高升力部分中的线性孔中的迷失运动压缩弹簧，以施加 力抵靠低升程部分的阀托板的后侧上的弯曲垫。 弹簧通过具有用于接合弯曲垫的平坦底部的弹簧保持器在其孔中保持和引导。 优选地，保持器是定位在弹簧孔中的杯，使得杯的行程受到限制，以防止相关联的液压间隙调节器的泄漏。 在线性孔中通过线性作用的保持器驱动弹簧使得弹簧被线性地压缩，导致高度稳定和可预测的弹簧刚度。

公开(公告)号：US06668779B2

公开(公告)日：2003-12-30

申请号：US10305995

申请日：2002-11-27

申请人： Nick J. Hendriksma ,  Andrew J. Lipinski ,  Hermes A. Fernandez

发明人： Nick J. Hendriksma ,  Andrew J. Lipinski ,  Hermes A. Fernandez

IPC分类号： F01L118

CPC分类号： F01L13/0036 ,  F01L1/182 ,  F01L1/2405 ,  F01L2103/00 ,  F01L2105/00

摘要： A two-step finger follower rocker arm assembly for cooperating with high-lift and low-lift cam lobes of an engine camshaft. The rocker arm assembly includes a follower body for engaging an hydraulic lash adjuster and a valve stem. A central well contains a roller for following the central low-lift cam lobe. Pivotably mounted on the body are lateral high-lift followers, including sliders or rollers, for following the lateral high-lift cam lobes. A latch block disposed on the body surface is slidable by piston and spring means between first and second positions to engage and thereby alternatively latch and unlatch the high-lift followers. In latched position, the rocker arm assembly acts in high-lift mode; in unlatched position, in low-lift mode.

摘要翻译： 用于与发动机凸轮轴的高升力和低提升凸轮凸轮配合的两步手指随动摇臂组件。 摇臂组件包括用于接合液压间隙调节器和阀杆的随动体。 中央井包含用于跟随中央低升程凸轮凸角的滚子。 横向安装在本体上的是侧向高升力跟随器，包括滑块或滚子，用于跟随横向高升程凸轮凸角。 设置在身体表面上的闩锁块可以通过活塞和弹簧装置在第一和第二位置之间滑动，从而接合，从而交替地闩锁和解锁高升降跟随器。 在锁定位置，摇臂组件作用于高升力模式; 处于解锁位置，处于低提升模式。

公开(公告)号：US06925978B1

公开(公告)日：2005-08-09

申请号：US10924614

申请日：2004-08-24

申请人： Joseph C. Gerzseny ,  Andrew J. Lipinski

发明人： Joseph C. Gerzseny ,  Andrew J. Lipinski

IPC分类号： F01L1/18 ,  F01L13/00

CPC分类号： F01L1/182 ,  F01L1/18 ,  F01L1/185 ,  F01L13/0036 ,  F01L2001/186 ,  F01L2105/02

摘要： A two-step roller finger follower for shifting between high-lift and low-lift valve modes includes a body having side members defining coaxially disposed shaft orifices, a pallet end, a socket end, a slider arm aperture, and a latch pin channel. The socket end is mountable to a lash adjuster, and the pallet end is matable with a valve stem. A slider arm for engaging a high-lift cam lobe is disposed in the aperture, is pivotably mounted to the body, and includes a slider tip for engaging a latch pin having a nose section. A spool-shaped roller is adapted to follow the surface motion of low-lift cam lobes. The axis of the latch pin intersects a radius extension of the slider arm at an angle of less than 180° such that the latch pin is prevented from accidentally locking the slider arm in its lost-motion position.

摘要翻译： 用于在高升程和低升程阀模式之间移动的两级辊指随动件包括具有限定同轴设置的轴孔的侧构件的主体，托盘端，插座端，滑动臂孔和闩锁销通道。 插座端可安装到间隙调节器上，托盘端可与阀杆配合。 用于接合高升程凸轮凸角的滑动臂设置在孔中，可枢转地安装到主体上，并且包括用于接合具有鼻部的闩锁销的滑动头。 卷轴形辊适于跟随低升力凸轮凸角的表面运动。 闩锁销的轴线以小于180°的角度与滑块臂的半径延伸相交，使得防止闩锁销意外地将滑动臂锁定在其失去运动位置。

公开(公告)号：US07278384B2

公开(公告)日：2007-10-09

申请号：US11240710

申请日：2005-09-30

申请人： Hermes A. Fernandez ,  Andrew J. Lipinski

发明人： Hermes A. Fernandez ,  Andrew J. Lipinski

IPC分类号： F01L1/34

CPC分类号： F01L13/0036 ,  F01L1/14 ,  F01L1/185 ,  F01L13/0005 ,  F01L2001/186 ,  F01L2105/00 ,  Y10T74/2102 ,  Y10T74/2107

摘要： A two-step roller finger follower having a movable high-lift portion and a low-lift portion. A lock pin mechanism in the low-lift portion includes a lock pin that may be driven hydraulically into latched engagement with the high-lift portion. The lock pin assembly comprises a lock pin and a separable switching pin. A blocking clip mountable on the associated hydraulic lash adjuster includes first and second ends that extend into a switching pin locking groove to block axial motion thereof. A ramp on the follower body mates with a ramp on the blocking clip such that oscillatory motion of the follower engages and disengages the blocking pin from the locking groove. The clip unblocks the switching pin at only those times in the camshaft rotational cycle when complete locking and unlocking is assured, and ending well before the beginning of the next valve lift event.

摘要翻译： 具有可移动的高升程部分和低升力部分的两步辊指随动件。 低升程部分中的锁销机构包括锁定销，该锁销可液压地驱动成与高升程部分锁定接合。 锁销组件包括锁定销和可分离开关销。 安装在相关联的液压间隙调节器上的阻挡夹具包括延伸到切换销锁定槽中以阻止其轴向运动的第一和第二端。 随动件主体上的斜坡与阻塞夹上的斜坡配合，使得从动件的振荡运动使锁定销与锁定槽接合并脱开。 当完全锁定和解锁确保时，夹子仅在凸轮轴转动循环中的那些时间解锁，并在下一个气门升程事件开始之前结束。

公开(公告)号：US20080314340A1

公开(公告)日：2008-12-25

申请号：US11820789

申请日：2007-06-20

申请人： Thomas H. Fischer ,  Andrew J. Lipinski ,  Hermes A. Fernandez ,  Timothy W. Kunz ,  Richard B. Roe

发明人： Thomas H. Fischer ,  Andrew J. Lipinski ,  Hermes A. Fernandez ,  Timothy W. Kunz ,  Richard B. Roe

IPC分类号： F01L1/02

CPC分类号： F01L1/185 ,  F01L13/0015 ,  F01L13/0036 ,  F01L2001/186 ,  Y10T74/2107

摘要： A two-step roller finger follower assembly for use in conjunction with a camshaft of an internal combustion engine, wherein the camshaft has at least one first lobe and at least one second lobe. The roller finger follower assembly comprises a follower body for engaging the first cam lobe and having a central aperture, a follower pivotably disposed on the follower body in the central aperture for engaging the second cam lobe, and a limiting stop disposed on the follower body for engaging a feature on the follower to limit travel of the follower body with respect to the follower. The limiting stop prevents overtravel of the follower body during valve-deactivation mode of the assembly, thus preventing excessive leak down of an associated hydraulic lash adjuster.

摘要翻译： 一种与内燃机的凸轮轴一起使用的两级辊指随动件组件，其中凸轮轴具有至少一个第一凸角和至少一个第二凸角。 辊指随动器组件包括用于接合第一凸轮凸角并具有中心孔的从动体，可枢转地设置在中心孔中的从动体上用于接合第二凸轮凸角的随动件，以及设置在从动体上的限制止动件 接合从动件上的特征以限制从动体相对于从动件的行进。 限制止挡件防止在组件的阀失活模式期间随动体的超程，从而防止相关联的液压间隙调节器的过度泄漏。

公开(公告)号：US07798113B2

公开(公告)日：2010-09-21

申请号：US11820789

申请日：2007-06-20

申请人： Thomas H. Fischer ,  Andrew J. Lipinski ,  Hermes A. Fernandez ,  Timothy W. Kunz ,  Richard B. Roe

发明人： Thomas H. Fischer ,  Andrew J. Lipinski ,  Hermes A. Fernandez ,  Timothy W. Kunz ,  Richard B. Roe

IPC分类号： F01L1/18

CPC分类号： F01L1/185 ,  F01L13/0015 ,  F01L13/0036 ,  F01L2001/186 ,  Y10T74/2107

摘要： A two-step roller finger follower assembly for use in conjunction with a camshaft of an internal combustion engine, wherein the camshaft has at least one first lobe and at least one second lobe. The roller finger follower assembly comprises a follower body for engaging the first cam lobe and having a central aperture, a follower pivotably disposed on the follower body in the central aperture for engaging the second cam lobe, and a limiting stop disposed on the follower body for engaging a feature on the follower to limit travel of the follower body with respect to the follower. The limiting stop prevents overtravel of the follower body during valve-deactivation mode of the assembly, thus preventing excessive leak down of an associated hydraulic lash adjuster.

摘要翻译： 一种与内燃机的凸轮轴一起使用的两级辊指随动件组件，其中凸轮轴具有至少一个第一凸角和至少一个第二凸角。 辊指随动器组件包括用于接合第一凸轮凸角并具有中心孔的从动体，可枢转地设置在中心孔中的从动体上用于接合第二凸轮凸角的随动件，以及设置在从动体上的限制止动件 接合从动件上的特征以限制从动体相对于从动件的行进。 限制止挡件防止在组件的阀失活模式期间随动体的超程，从而防止相关联的液压间隙调节器的过度泄漏。