公开(公告)号：US20080006233A1

公开(公告)日：2008-01-10

申请号：US11819645

申请日：2007-06-28

申请人： Bradley Bartley ,  Alan Stockner ,  David Mack

发明人： Bradley Bartley ,  Alan Stockner ,  David Mack

IPC分类号： F01L1/14

CPC分类号： F02M59/102 ,  F01L1/08 ,  F01L1/146 ,  F01L1/16 ,  F01L2105/02 ,  F02M59/445 ,  F02M59/48 ,  F02M63/0001 ,  F02M2200/02 ,  F02M2200/9038 ,  F02M2200/9053 ,  F02M2200/9076

摘要： In one aspect, the present disclosure is directed to a tappet assembly for a machine. The assembly may include a tappet body, a pin fixedly mounted in the tappet body, and a substantially cylindrical roller mounted about the pin. The roller may have a substantially cylindrical outer surface with a circumferential dimension and a width dimension, the width dimension being defined by two lateral edges. The roller may be configured to provide rolling contact between the outer surface of the roller and a cam lobe. The outer surface of the roller may be crowned such that at maximum operational loading conditions of the machine a footprint of contact pressure from the cam lobe is spread substantially the full width of outer cylindrical surface of the roller.

摘要翻译： 在一个方面，本公开涉及一种用于机器的挺杆组件。 组件可以包括挺杆本体，固定地安装在挺杆本体中的销和围绕销安装的大致圆柱形的滚子。 辊可以具有基本上圆柱形的外表面，其具有周向尺寸和宽度尺寸，宽度尺寸由两个侧边缘限定。 辊可以构造成在辊的外表面和凸轮凸角之间提供滚动接触。 辊的外表面可以加冠，使得在机器的最大操作负载条件下，来自凸轮凸角的接触压力的占地面积基本上扩大到辊的外圆柱形表面的整个宽度。