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：US06755167B2

公开(公告)日：2004-06-29

申请号：US10305994

申请日：2002-11-27

申请人： John J. Krieg ,  Timothy W. Kunz ,  Nick J. Hendriksma ,  Wayne S. Harris ,  James A. Niemeier ,  Jongmin Lee ,  Hermes Fernandez ,  Joseph F. Girtler

发明人： John J. Krieg ,  Timothy W. Kunz ,  Nick J. Hendriksma ,  Wayne S. Harris ,  James A. Niemeier ,  Jongmin Lee ,  Hermes Fernandez ,  Joseph F. Girtler

IPC分类号： F01L118

CPC分类号： F01L1/2405 ,  F01L1/08 ,  F01L1/181 ,  F01L13/0015 ,  F01L13/0036 ,  F01L2105/00 ,  F01L2105/02 ,  Y10T74/2107

摘要： A two-step roller finger follower including an elongate body having side walls defining coaxially disposed shaft orifices, a pallet end and a socket end interconnecting with the side walls to define a slider arm aperture, and a latch channel. The socket end is mountable to an hydraulic 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 slider arm aperture and has a first end pivotably mounted to the pallet end of the body and the second end forming a slider tip for engaging an activation/deactivation latch. The latch is slidably disposed in the latch channel, and the latch has a nose section for selectively engaging the slider tip. A spool-shaped roller having first and second roller elements fixedly attached to the shaft is rotatably disposed in the shaft orifices, the roller being adapted to follow the surface motion of low-lift cam lobes. Preferably, the shaft is journalled in roller or needle bearings which extend between and through the first and second shaft orifices, being thus exposed to normal copious oil flow through the RFF.

摘要翻译： 包括具有限定同轴设置的轴孔的侧壁的细长主体的两步辊指随动件，托板端部和与侧壁互连以限定滑动臂孔的插座端以及闩锁通道。 插座端可安装到液压间隙调节器，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滑块臂孔中，并且具有可枢转地安装到主体的托盘端的第一端，并且第二端形成用于接合启动/停用闩锁的滑动头。 闩锁可滑动地设置在闩锁通道中，并且闩锁具有用于选择性地接合滑块顶端的鼻部。 具有固定地连接到轴的第一和第二滚子元件的线轴形滚子可旋转地设置在轴孔中，该滚轮适于跟随低升程凸轮凸角的表面运动。 优选地，轴被轴颈安装在在第一和第二轴孔之间延伸并穿过第一和第二轴孔的辊或滚针轴承中，从而暴露于通过RFF的正常大量油流。

公开(公告)号：US20070074688A1

公开(公告)日：2007-04-05

申请号：US11240710

申请日：2005-09-30

申请人： Hermes Fernandez ,  Andrew Lipinski

发明人： Hermes Fernandez ,  Andrew Lipinski

IPC分类号： F01L1/34 ,  F01L1/02 ,  F01L1/18

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.

公开(公告)号：US20060249110A1

公开(公告)日：2006-11-09

申请号：US11125360

申请日：2005-05-09

申请人： Hermes Fernandez ,  Andrew Lipinski ,  Nick Hendriksma ,  Thomas Fischer ,  Timothy Kunz

发明人： Hermes Fernandez ,  Andrew Lipinski ,  Nick Hendriksma ,  Thomas Fischer ,  Timothy Kunz

IPC分类号： F01L1/34 ,  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。