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公开(公告)号:US20090125191A1
公开(公告)日:2009-05-14
申请号:US12269288
申请日:2008-11-12
申请人: Masakazu KURATA , Toshimitsu Sakaki , Mitsuo Sasaki , Tamotsu Yamaura , Mitsuaki Nakada , Kohei Ono , Eiji Kasai , Takatoshi Saito
发明人: Masakazu KURATA , Toshimitsu Sakaki , Mitsuo Sasaki , Tamotsu Yamaura , Mitsuaki Nakada , Kohei Ono , Eiji Kasai , Takatoshi Saito
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.
摘要翻译: 动力转向装置包括动力缸; 可逆泵 第一和第二液压通道; 储水箱; 第一供应通道,布置成通过可逆泵将液压流体供应到第二液压通道; 设置在第一供应通道中的第一单向阀; 第二供应通道,其布置成通过可逆泵将液压流体供应到第一液压通道; 以及设置在第二供给通道中的第二单向阀。 当第一单向阀中的每单位时间流量的流量最大时,第一单向阀中的流量的雷诺数等于或小于2300。 当第二单向阀中的流量每单位时间的流量最大时,第二单向阀中的流量的雷诺数等于或小于2300。