发明授权
US06695604B1 Automotive fuel pump gear assembly having lifting and lubricating features 失效
汽车燃油泵齿轮组件具有提升和润滑特性

  • 专利标题: Automotive fuel pump gear assembly having lifting and lubricating features
  • 专利标题(中): 汽车燃油泵齿轮组件具有提升和润滑特性
  • 申请号: US10256359
    申请日: 2002-09-27
  • 公开(公告)号: US06695604B1
    公开(公告)日: 2004-02-24
  • 发明人: DeQuan Yu
  • 申请人: DeQuan Yu
  • 主分类号: F04C210
  • IPC分类号: F04C210
Automotive fuel pump gear assembly having lifting and lubricating features
摘要:
The present invention involves a gear assembly having a lifting feature for a fuel pump for supplying fuel to an automotive engine from a fuel tank. The gear assembly comprises an inner gear and an outer gear in mating relationship with the inner gear. The inner gear has a substantially disc shape with an outside camming surface and having an inner cover face and an inner body face. The inner gear has a center aperture formed therethrough defining an axis of rotation perpendicular to the inner cover and inner body faces. The inner cover face has a plurality of inner concave grooves radially formed thereon and spaced apart from each other to provide lifting of the inner gear when rotating about the axis. The outer gear has a substantially planar shape. The outer gear includes an annular wall having an inside camming surface slideably engaging about the outside camming surface to matingly cooperate with the inner gear for rotation about the axis. The outer gear has an outer cover surface and an outer body surface. The outer cover surface has a plurality of outer concave grooves radially formed thereon and spaced apart from each other to provide lifting of the outer gear when rotating about the axis.
信息查询
0/0