Title:
The amount type vane pump of good changes, and a power steering device
Document Type and Number:
Japanese Patent JP5989583
Kind Code:
B2
Abstract:
A variable displacement vane pump and a power steering can secure a discharge flow rate when a steering wheel is turned, and restrict the discharge flow rate when the steering wheel is not turned. In the variable displacement vane pump and power steering system, a bypass line is formed. The bypass line causes a hydraulic fluid in a high pressure chamber of a control valve, which controls an eccentricity of a cam ring, to flow directly to a low pressure chamber side of the control valve. The hydraulic fluid flows directly to the low pressure chamber side of the control valve when the steering wheel is turned.
Inventors:
Yukio Uchida
Hiroki Imanaga
Satoshi Muramatsu
Hiroki Imanaga
Satoshi Muramatsu
Application Number:
JP2013061666A
Publication Date:
September 07, 2016
Filing Date:
March 25, 2013
Export Citation:
Assignee:
Hitachi Automotive Systems, Ltd.
International Classes:
B62D5/07; F04C2/344; F04C14/22; F04C14/24
Domestic Patent References:
| JP59137673A | ||||
| JP9226610A | ||||
| JP3861594B2 | ||||
| JP3933843B2 | ||||
| JP2000087877A |
Attorney, Agent or Firm:
Masamichi Ayata
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