Title:
可変吐出量ベーンポンプ
Document Type and Number:
Japanese Patent JP2005502815
Kind Code:
A
Abstract:
A variable-capacity vane pump comprising a body ( 1 ) comprising a cavity ( 2 ) in which a mobile ring ( 3 ) can move, inside which a hub ( 4 ) is located which is rotatable around a fixed axis (R) and equipped with vanes ( 5 ) which during rotation are supported against an inner face of the mobile ring ( 3 ), displacing structure for moving the mobile ring ( 3 ) as a function of a control pressure between a position centered on the axis of rotation of the hub ( 4 ) and an extreme eccentric position with respect to the axis of rotation of the hub ( 4 ). According to the invention, the displacing structure of the mobile ring ( 3 ) comprise a recess ( 10 ) provided in the wall of the cavity ( 2 ) of the body ( 1 ), and a projection ( 9 ) formed on the outer face of the mobile ring ( 3 ) and designed to slide in the recess ( 10 ) of the cavity ( 2 ) of the body ( 1 ) so as to form a control chamber in which the control pressure is applied.
Inventors:
Clement Kiefe
Application Number:
JP2003527269A
Publication Date:
January 27, 2005
Filing Date:
September 12, 2002
Export Citation:
Assignee:
Pierburg Society A Responsabilites Limited
International Classes:
F04C2/344; F04C14/22; (IPC1-7): F04C15/04
Attorney, Agent or Firm:
Toshio Yano
Toshiomi Yamazaki
Takuya Kuno
Einzel Felix-Reinhard
Toshiomi Yamazaki
Takuya Kuno
Einzel Felix-Reinhard