公开(公告)号：US06739312B2

公开(公告)日：2004-05-25

申请号：US10187416

申请日：2002-07-02

申请人： Tetsuya Komeda ,  Kazunori Mori

发明人： Tetsuya Komeda ,  Kazunori Mori

IPC分类号： F02D908

CPC分类号： F02D11/10 ,  F02D9/106 ,  F02D9/1065 ,  F02D9/107 ,  F05C2201/021

摘要： A throttle device for engine has a throttle valve, a shaft, and a valve gear. The valve gear is driven to rotate by a motor. The shaft and the valve gear are unitarily molded of a continuous resinous material. In the coupled area between the shaft and the valve, a recess section is provided. The recess section is formed, from the outer end face of the gear, coaxially with the shaft. The recess section serves as a thin-walled section, and prevents deformation of the gear likely to be caused by heat shrinkage. Furthermore, the recess section includes a through hole, which is effective for moving the ball bearing along the axial direction. A press-fitting tool is inserted into the through hole to install the ball bearing by pressing.

摘要翻译： 用于发动机的节流装置具有节流阀，轴和阀齿轮。 阀门齿轮由电机驱动旋转。 轴和阀齿轮由连续的树脂材料整体模制。 在轴与阀之间的联接区域中，设置有凹部。 凹部从齿轮的外端面与轴同轴地形成。 凹部作为薄壁部，能够防止由于热收缩引起的齿轮的变形。 此外，凹部包括贯通孔，其有效地沿轴向移动球轴承。 将压入工具插入通孔中，通过按压安装球轴承。