Title:
POWER STEERING DEVICE
Document Type and Number:
Japanese Patent JP2008302873
Kind Code:
A
Abstract:
To provide a power steering device capable of suppressing generation of noise while retaining enhancement of anti-seize property by also sufficiently using a pump relief valve and an outside relief valve.
The power steering device is provided with two relief valves set to cracking pressures different from each other. Of these two relief valves, one valve comprises the pump relief valve 30 provided at the inside of the pump and the other valve comprises the outside relief valve 50 provided at the outside of the pump. An over-riding characteristic of the relief valve at the lower cracking pressure side is set more moderately than an over-riding characteristic of the relief valve at the high cracking pressure side.
Inventors:
KAKUZEN TOSHIO
IKEDA TSUYOSHI
EBIHARA TSUYOSHI
IKEDA TSUYOSHI
EBIHARA TSUYOSHI
Application Number:
JP2007153584A
Publication Date:
December 18, 2008
Filing Date:
June 11, 2007
Export Citation:
Assignee:
JTEKT CORP
International Classes:
B62D5/07
Domestic Patent References:
| JPH11270464A | 1999-10-05 |
Attorney, Agent or Firm:
Kobayashi Osamu
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