Title:
VANE PUMP
Document Type and Number:
Japanese Patent JPH07197889
Kind Code:
A
Abstract:
PURPOSE: To reduce cost by preventing the generation of vane bouncing noise owing to dislocation of a vane from a cam ring through simple structure.
CONSTITUTION: A communicating hole through which a closed part and a vane back pressure groove 35 are intercommunicated is provided and a vane back pressure groove 35 formed in a rear cover is divided into the delivery side and the suction side. A vane back pressure groove 35 formed in a front cover 15 is formed such a manner that the delivery side and the suction side are intercommunicated through a microgroove 35c.
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Inventors:
OGUSHI NAOKI
Application Number:
JP29018294A
Publication Date:
August 01, 1995
Filing Date:
November 24, 1994
Export Citation:
Assignee:
AISIN SEIKI
International Classes:
F04C2/344; F04C11/00; F04C14/22; F04C15/00; F04C15/06; (IPC1-7): F04C15/04; F04C2/344; F04C11/00