公开(公告)号：US06237552B1

公开(公告)日：2001-05-29

申请号：US09387162

申请日：1999-08-31

Applicant: Allen James Hoag, Jr.

Inventor： Allen James Hoag, Jr.

IPC: F01L126

CPC classification number: F01L1/26 ,  F01L1/08 ,  F01L1/18 ,  F01L2105/02 ,  Y10T74/20882

Abstract: A rocker arm (10) that reduces frictional forces between a cam (86) and the rocker arm (10) is disclosed. The rocker arm (10) includes a pair of spaced side members (20) having a valve portion (14), a middle portion (16), and a pivot portion (12). The side members (20) of rocker arm (10) each define a downwardly extending tappet hole (49) located generally centrally within the valve portion (14). The middle portion (16) of each side member (20) defines a bearing hole (68), and each of the pivot portions (12) defines a pivot hole (66). A web (70) extends between side members (20) at a valve portion (14) and at the pivot portion (12), defining a recess (85) therebetween at about the middle portion (16). A pin bearing is located within the bearing holes (68) and passes through the recess (85). An annular striking member (80) is located within the recess (85) and rotatably engages the pin bearing (69). During operation, a cam (86) is placed in operative contact with striking member (80). Rotation of cam (86) depresses striking member (80) and, in turn, rocker arm (10), while frictional forces from the cam cause the striking member (80) to rotate.

Abstract translation: 公开了一种降低凸轮（86）和摇臂（10）之间的摩擦力的摇臂（10）。 摇臂（10）包括具有阀部分（14），中间部分（16）和枢转部分（12）的一对隔开的侧部构件（20）。 摇臂（10）的侧构件（20）各自限定大致位于阀部分（14）中心的向下延伸的挺杆孔（49）。 每个侧部构件（20）的中间部分（16）限定一个轴承孔（68），并且每个枢转部分（12）限定一个枢轴孔（66）。 腹板（70）在阀部分（14）和枢转部分（12）处在侧部构件（20）之间延伸，在中间部分（16）处在其间限定凹部（85）。 销轴承位于轴承孔（68）内并通过凹槽（85）。 环形敲击构件（80）位于凹部（85）内并且可旋转地接合销轴承（69）。 在操作期间，将凸轮（86）放置成与撞击构件（80）操作接触。 凸轮（86）的旋转按压击打构件（80），并且随后来自摇臂（10），同时来自凸轮的摩擦力导致冲击构件（80）旋转。