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21 条记录 (耗时 0.019 秒)

    Two-step roller finger follower
    1.
    发明授权
    Two-step roller finger follower 有权
    两步辊手指随动

    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。

    Roller finger follower assembly for valve deactivation
    2.
    发明授权
    Roller finger follower assembly for valve deactivation 失效
    用于阀门去活动的滚轮指状随动件组件

    公开(公告)号：US07093572B2

    公开(公告)日：2006-08-22

    申请号：US10742316

    申请日：2003-12-19

    申请人： Nick J. Hendriksma ,  Timothy W. Kunz

    发明人： Nick J. Hendriksma ,  Timothy W. Kunz

    IPC分类号： F01L1/34

    CPC分类号： F01L13/0005 ,  F01L1/18 ,  Y10T74/2107

    摘要： A roller finger follower rocker arm assembly for deactivating an engine valve. A follower body pivots on a hydraulic lash adjuster, and engages a valve stem or lifter. The body receives a reciprocating member having a first and second rollers outboard of the body for following eccentrics of a cam lobe that straddles the body, the body having elongate openings on either side of the reciprocating member. A locking pin selectively locks and unlocks the body to the reciprocating member. The reciprocating member does not make contact with the cam lobe and functions only as a link between the latching mechanism and the rollers. The pin engages the reciprocating member by a latching spring and is disengaged by pressurized oil supplied through the hydraulic lash adjuster. Means is provided for limiting axial growth of the HLA during deactivation mode of the rocker arm assembly.

    摘要翻译： 一种用于停用发动机气门的辊指随动摇臂组件。 随动体在液压间隙调节器上枢转，并与阀杆或升降器接合。 主体接收往复运动的构件，该往复构件具有在主体外侧的第一和第二辊，用于跟随跨越主体的凸轮凸角的偏心，该主体在往复运动构件的任一侧具有细长的开口。 锁定销选择性地将主体锁定并解锁到往复运动构件。 往复运动构件不与凸轮凸角接触，仅作为闭锁机构和辊之间的连杆起作用。 销通过闩锁弹簧与往复运动件接合，并通过液压间隙调节器供应的加压油脱开。 提供了用于在摇臂组件的停用模式期间限制HLA的轴向生长的装置。

    Two-step finger follower rocker arm
    3.
    发明授权
    Two-step finger follower rocker arm 失效
    两步手指随动摇臂

    公开(公告)号：US06615782B1

    公开(公告)日：2003-09-09

    申请号：US10121720

    申请日：2002-04-12

    申请人： Nick J. Hendriksma ,  Wayne S. Harris ,  Timothy W. Kunz ,  Joseph F. Girtler

    发明人： Nick J. Hendriksma ,  Wayne S. Harris ,  Timothy W. Kunz ,  Joseph F. Girtler

    IPC分类号： F01L118

    CPC分类号： F01L13/0036 ,  F01L1/053 ,  F01L1/08 ,  F01L1/18 ,  F01L1/185 ,  F01L2105/00 ,  Y10T29/49295 ,  Y10T74/20882

    摘要： A two-step finger follower rocker arm assembly including a follower body having a socket at a first end for engaging a hydraulic lash adjuster and a pad at an opposite end for engaging a valve stem. A passage through the follower body in the direction of actuation by an engine cam lobe is slidingly receivable of a slider member for variably engaging a central cam lobe, preferably a high-lift lobe. An elongate shaft extends through a transverse bore in the slider member and through a slotted passage in the slider member. In the follower body, the shaft is provided with bearings supporting first and second lateral roller followers on opposite sides of the body for variably engaging first and second preferably low-lift lateral cam lobes flanking the central cam lobe. A lost-motion spring urges the slider member into contact with the central lobe. A latch member driven by a piston selectively locks the slider member to the follower body such that the follower follows the motion of the central cam lobe. When the latch member is disengaged from the slider member, the member slides within the follower body, allowing the lateral rollers to engage and follow the lateral cam lobes. Preferably, the latching mechanism is provided as a pre-assembled cartridge unit.

    摘要翻译： 一种两步手指随动摇臂组件，包括随动体，该随动体在第一端具有用于接合液压间隙调节器的插座和用于接合阀杆的相对端的垫。 通过发动机凸轮凸起的致动方向通过从动体的通道可滑动地接收滑块构件，用于可变地接合中央凸轮凸角，优选地是高升高凸起。 细长轴延伸穿过滑动构件中的横向孔并且穿过滑动构件中的开槽通道。 在从动体中，轴设置有支撑在主体的相对侧上的第一和第二横向滚子从动件的轴承，用于可变地接合位于中心凸轮凸角侧面的第一和第二优选低提升侧向凸轮凸角。 松动弹簧促使滑动构件与中央凸起接触。 由活塞驱动的闩锁构件选择性地将滑块构件锁定到随动体，使得跟随器遵循中央凸轮凸角的运动。 当闩锁构件与滑动构件脱离接合时，构件在从动体内滑动，允许侧向滚轮接合并跟随侧向凸轮凸角。 优选地，闩锁机构设置为预组装的盒单元。

    Cam lobe profile for driving a mechanical fuel pump
    4.
    发明申请
    Cam lobe profile for driving a mechanical fuel pump 审中-公开
    用于驱动机械燃油泵的凸轮齿廓

    公开(公告)号：US20090272365A1

    公开(公告)日：2009-11-05

    申请号：US12150687

    申请日：2008-04-30

    申请人： Timothy W. Kunz

    发明人： Timothy W. Kunz

    IPC分类号： F02M37/06

    CPC分类号： F02M59/102 ,  F04B9/042

    摘要： In a fuel-pumping system in an internal combustion engine, a mechanical fuel pump roller actuator is slidably disposed to ride on a dedicated tri-lobate camshaft lobe. In prior art camshaft lobes for this purpose, a portion of the lift profile over a certain angle of camshaft rotation imparts a constant velocity, and hence zero acceleration and zero jerk, to the roller actuator. It has been found that such areas of zero acceleration give rise to undesirably high contact stress between the lobe and the roller actuator. In a method in accordance with the present invention, a reference radius of curvature of a reference camshaft lobe lift profile is adjusted such that, between regions of minimum lift and maximum lift, there are no regions imparting zero acceleration to the actuator and maximum contact stress is reduced.

    摘要翻译： 在内燃机的燃料抽吸系统中，机械燃油泵辊致动器可滑动地设置成骑在专用的三叶凸轮轴凸角上。 在现有技术中，用于此目的的凸轮轴凸角在凸轮轴旋转的某一角度上的一部分提升轮廓赋予辊致动器恒定的速度，因此零加速度和零加速度。 已经发现，零加速度的区域在凸角和辊致动器之间引起不期望的高接触应力。 在根据本发明的方法中，调整参考凸轮轴凸耳提升曲线的参考曲率半径，使得在最小升程和最大升程的区域之间没有赋予致动器零加速度的区域和最大接触应力 降低了。

    Direct acting hydraulic valve lifter with integral plunger
    7.
    发明授权
    Direct acting hydraulic valve lifter with integral plunger 失效
    直动液压升降器，带有一体式柱塞

    公开(公告)号：US4756282A

    公开(公告)日：1988-07-12

    申请号：US90920

    申请日：1987-08-31

    申请人： Timothy W. Kunz ,  Donald G. Cole ,  Richard S. Knape ,  Arthur N. Krein

    发明人： Timothy W. Kunz ,  Donald G. Cole ,  Richard S. Knape ,  Arthur N. Krein

    IPC分类号： F01L1/25 ,  F01L1/24

    CPC分类号： F01L1/25

    摘要： A direct acting hydraulic valve lifter of the type that is reciprocably journaled as in the cylinder head of an internal combustion engine so as to be engaged by a cam on an engine driven camshaft to control opening and closing movement of an associate valve. The lifter includes a follower body having a circular outer tubular wall with an inner integral web closely adjacent to one end thereof that terminates at a stepped bored integral depending piston, the one end thereof being closed by a disk cam engaging foot which forms with the piston and a surface of the web a fluid reservoir. A baffle, fixed to the plunger and to inner surface of the tubular wall, defines an oil supply passage which is adapted to receive fluid via a side port in the tubular wall and to be in flow communication with the fluid reservoir via an aperture in the web. A cup-shaped, closed end cylinder member slidably encircles the plunger to form therewith a hydraulic lash adjuster having a pressure chamber therein. In one enbodiment, a mechanical retainer is operatively secured to the tubular wall whereby to retain the cylinder member in unit assembly on the plunger. In a preferred embodiment, lubricating oil in the pressure chamber and in a leak-down flow path between the cylinder member and plunger and a one-way ball valve controlling flow into the pressure chamber are operative to hold the cylinder member in unit assembly on the plunger.

    摘要翻译： 一种直动式液压气门挺杆，其类似于内燃机的气缸盖中的可往复运动的轴颈，以便由发动机驱动的凸轮轴上的凸轮接合，以控制关联阀的打开和关闭运动。 升降机包括一个随动体，该主体具有圆形的外部管状壁，其内部整体腹板紧邻其一端，其终止于阶梯式钻孔的一体式悬挂式活塞，其一端由与活塞形成的圆盘凸轮接合脚封闭 并且所述幅材的表面是流体储存器。 固定到柱塞和管状壁的内表面的挡板限定了供油通道，该供油通道适于经由管状壁中的侧端口接收流体，并且通过管状壁中的孔与流体储存器流体连通 网络 一个杯形封闭的端部筒部件可滑动地围绕柱塞与其形成液压间隙调节器，其中具有压力室。 在一个实施例中，机械保持器可操作地固定到管状壁上，从而将柱塞构件保持在柱塞上的单元组件中。 在优选实施例中，压力室中的润滑油和气缸构件和柱塞之间的泄漏流动路径以及控制流入压力室的单向球阀可操作以将气缸构件保持在单元组件上 柱塞。

    Two-step roller finger cam follower assembly having a follower travel limiter
    8.
    发明授权
    Two-step roller finger cam follower assembly having a follower travel limiter 有权
    具有跟随行程限制器的两步辊指凸轮从动组件

    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。