公开(公告)号：US4047859A

公开(公告)日：1977-09-13

申请号：US714598

申请日：1976-08-16

申请人： Jack Gunnar Sundberg

发明人： Jack Gunnar Sundberg

IPC分类号： F04C2/356 ,  F04C15/00 ,  F04C1/00

CPC分类号： F04C2/3568

摘要： A vane pump has a cam member carried upon a drive shaft in coaxial relationship therewith. The axial sides of the cam member define annular cam surfaces which each engage an array of vanes disposed in a fixedly mounted stator. An interior portion of the drive shaft is hollowed to provide a fluid inlet to passages in the cam member which communicate with the cam surfaces. The cam member is provided with additional passages to receive discharge flow from intervane volumes and direct such flow to the radially outer periphery of the cam member.

摘要翻译： 叶片泵具有承载在与其同轴关系的驱动轴上的凸轮构件。 凸轮构件的轴向侧面限定环形凸轮表面，每个凸轮表面接合设置在固定安装的定子中的一组叶片。 驱动轴的内部是中空的，以提供与凸轮部件中与凸轮表面连通的通道的流体入口。 凸轮构件设置有附加通道，以接收来自间隙体积的排出流，并将该流动引导到凸轮构件的径向外周。