发明申请
- 专利标题： Power Steering Apparatus
- 专利标题（中）： 动力转向装置
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申请号： US12269288申请日： 2008-11-12
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公开(公告)号： US20090125191A1公开(公告)日： 2009-05-14
- 发明人: Masakazu KURATA , Toshimitsu Sakaki , Mitsuo Sasaki , Tamotsu Yamaura , Mitsuaki Nakada , Kohei Ono , Eiji Kasai , Takatoshi Saito
- 申请人： Masakazu KURATA , Toshimitsu Sakaki , Mitsuo Sasaki , Tamotsu Yamaura , Mitsuaki Nakada , Kohei Ono , Eiji Kasai , Takatoshi Saito
- 专利权人： Hitachi, Ltd.,Toyota Jidosha Kabushiki Kaisha
- 当前专利权人： Hitachi, Ltd.,Toyota Jidosha Kabushiki Kaisha
- 优先权： JP2007-292863 20071112
- 主分类号： B62D5/06
- IPC分类号： B62D5/06 ; B62D6/04
摘要：
A power steering apparatus includes a power cylinder; a reversible pump; first and second hydraulic passages; a reservoir tank; a first supply passage arranged to supply the hydraulic fluid through the reversible pump to the second hydraulic passage; a first one-way valve provided in the first supply passage; a second supply passage arranged to supply the hydraulic fluid through the reversible pump to the first hydraulic passage; and a second one-way valve provided in the second supply passage. A Reynolds number of a flow in the first one-way valve is equal to or smaller than 2300 when a flow rate per unit time of the flow in the first one-way valve is maximum. A Reynolds number of a flow in the second one-way valve is equal to or smaller than 2300 when a flow rate per unit time of the flow in the second one-way valve is maximum.
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