公开(公告)号：US20070215088A1

公开(公告)日：2007-09-20

申请号：US11631280

申请日：2005-06-15

Applicant: Donald Haefner

Inventor： Donald Haefner

IPC: F01L1/14

CPC classification number: F01L1/143 ,  F01L1/14 ,  F01L13/0005 ,  F01L13/0031

Abstract: A switchable cam follower (1) is proposed which serves to transmit a cam stroke in a variable manner from a cam to valve timing mechanism elements of an internal combustion engine. The cam follower (1) comprises substantially a cylindrical inner part (5) and a cylindrical outer part (2) which can be displaced into one another in the direction of their longitudinal axes and can be locked and unlocked in a relative position by means of coupling means (10) which are preferably actuated by pressure-modulated hydraulic medium, and also comprises at least one spring means (7) which is arranged between the inner part (5) and the outer part (2). The inner part (5) has a run-on surface (16) for the cam at one end side (17) and is radially guided in an inner wall (4) of the outer part (2) by way of an outer circumferential surface (6). The outer part (2) has an outer cylindrical circumferential surface (3), by way of which the cam follower (1) is guided in a housing hole of the internal combustion engine in a longitudinally movable manner, and an outer end face (25) facing away from the cam, as a contact face for valve timing mechanism elements which are operatively connected to the cam follower (1). Here, the outer circumferential surface (3) of the outer part (2) is to have substantially identical diameters in the region of the end face (25) which faces the valve timing mechanism element and in the region of an opening (26) which is oriented toward the inner part (5). At the same time, the spring means (7) is to be arranged within the outer part (2).

Abstract translation: 提出了一种可切换的凸轮从动件（1），其用于从内燃机的凸轮到气门正时机构元件以可变的方式传递凸轮行程。 凸轮从动件（1）包括基本上圆柱形的内部部分（5）和圆柱形的外部部分（2），该圆柱形的内部部分（2）可沿它们的纵向方向彼此移位，并且可以通过相对位置被锁定和解锁 优选地由压力调节液压介质致动的联接装置（10），并且还包括布置在内部部分（5）和外部部分（2）之间的至少一个弹簧装置（7）。 内部部分（5）具有用于一端侧（17）处的凸轮的延伸表面（16），并且通过外周面（2）的外周面（4）的内壁 （6）。 外部部分（2）具有外圆柱形周向表面（3），凸轮从动件（1）以可纵向移动的方式被引导到内燃机的容纳孔中，外端面（25 ）作为可操作地连接到凸轮从动件（1）的气门正时机构元件的接触面。 这里，外部部件（2）的外周面（3）在面对阀门正时机构元件的端面（25）的区域内和在开口（26）的区域内具有基本相同的直径 朝向内部部分（5）。 同时，弹簧装置（7）将被布置在外部部分（2）内。

公开(公告)号：US5138211A

公开(公告)日：1992-08-11

申请号：US736536

申请日：1991-07-26

Applicant: Donald Haefner ,  David Preston

Inventor： Donald Haefner ,  David Preston

IPC: F16D15/00 ,  F16D27/118 ,  H02K7/108

CPC classification number: H02K7/1085 ,  F16D15/00 ,  F16D27/118

Abstract: A servo-actuator has a motor driven input pinion engaging a driven gear clutched to an output pinion. The driven gear has an internally notched hub and the output pinion has a central core with a tapered pin slidable therein. Spherical cams are slidably received in a cross hole and are moved outward to lock the output pinions to the hub when a solenoid is energized, to move the tapered pin into contact with the cam members. The angle of the notch and the pin taper are chosen to effect a positive de-energization force on the pin for facilitating disengagement.

Abstract translation: 伺服致动器具有马达驱动的输入小齿轮，其与从动齿轮啮合到输出小齿轮。 从动齿轮具有内部凹口轮毂，并且输出小齿轮具有中心芯，其中可在其中滑动的锥形销。 球形凸轮可滑动地容纳在十字孔中并且当螺线管通电时向外移动以将输出小齿轮锁定到轮毂，以使锥形销移动到与凸轮构件接触。 选择凹口的角度和销锥度以在销上实现正的断电力，以便于分离。