Title:
VANE PUMP
Document Type and Number:
Japanese Patent JPH05157058
Kind Code:
A
Abstract:
PURPOSE: To gradually damp a pump load, to prevent seizure of a pump and stall, to prevent giving damage to a sealing member unlike a conventional case, and to apply to a motor power auxiliary device having a rotary valve and so on.
CONSTITUTION: A discharge oil is guided to the bottom side of a vane storing groove 3a by a vane pressure oil route P, and the pressure force for pressing a vane 4 to the cam surface of a cam ring 2 is obtained. A pressure power adjuster Q for damping pressure power by closing the vane pressure oil route P as required, is provided.
Inventors:
HAMAZAKI YOSHIAKI
Application Number:
JP31811591A
Publication Date:
June 22, 1993
Filing Date:
December 02, 1991
Export Citation:
Assignee:
KOYO SEIKO CO
International Classes:
B62D5/07; F04C2/344; F04C14/24; (IPC1-7): B62D5/07; F04C2/344; F04C15/04
Attorney, Agent or Firm:
Takafumi Watanabe (2 others)