Title:
ベーンポンプ装置
Document Type and Number:
Japanese Patent JP6621327
Kind Code:
B2
Abstract:
An embodiment provides a vane pump device includes multiple vanes; a rotor that rotates and includes vane grooves for supporting the vanes and accommodating oil; a cam ring that includes an inner circumferential cam ring surface provided with a high pressure region and a low pressure region, and that surrounds the rotor; and an inner plate that covers an opening of the cam ring. The inner plate includes a first portion that supplies high pressure oil to the vane grooves, and a second portion that supplies low pressure oil to the vane grooves. Among vane grooves which support vanes positioned in the high pressure region of the cam ring, the first portion supplies high pressure oil to vane grooves, the number of which is less than the number of vanes positioned in the high pressure region.
Inventors:
Nishikawa year-old student
Application Number:
JP2015255419A
Publication Date:
December 18, 2019
Filing Date:
December 25, 2015
Export Citation:
Assignee:
Showa Corporation
International Classes:
F04C2/344; F04C15/06
Domestic Patent References:
| JP5030487U | ||||
| JP2001027186A |
Foreign References:
| US4183723 |
Attorney, Agent or Firm:
Jiro Kobe
Fumio Ogata
Fumio Ogata