发明公开
- 专利标题： Oil pressure supply circuit for industrial vehicle
- 专利标题（中）： 一种用于工业车辆的油压供应电路
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申请号： EP07015893.6申请日： 2007-08-13
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公开(公告)号： EP1900607A3公开(公告)日： 2009-02-25
- 发明人: Kooriyama, Masayuki
- 申请人： NISSAN MOTOR CO., LTD.
- 申请人地址： 2 Takara-cho, Kanagawa-ku Yokohama-shi, Kanagawa JP
- 专利权人： NISSAN MOTOR CO., LTD.
- 当前专利权人： NISSAN MOTOR CO., LTD.
- 当前专利权人地址： 2 Takara-cho, Kanagawa-ku Yokohama-shi, Kanagawa JP
- 代理机构： Hager, Thomas Johannes
- 优先权： JP2006246610 20060912
- 主分类号： B62D5/07
- IPC分类号： B62D5/07
摘要：
A priority flow rate control valve (4) increases a distribution ratio of pressurized oil to a power steering device (1) of a fork-lift track via a power steering oil passage (9) as a differential pressure between a power steering pressure ( PS ) in the power steering oil passage (9) and a pilot pressure ( LS ) decreases. A load signal port (24) which outputs a pressure indicative of a load exerted on the power steering device (1) and the power steering oil passage (9) are connected via two orifices (26A, 26B), and the pilot pressure ( LS ) pressure is extracted from a point between the two orifices (26A, 26B). By providing a bypass passage (31, 35) which bypasses one of the two orifices (26A, 26B) and a bypass valve (30) which opens and closes the bypass passage (26A, 26B), a response of the priority flow rate control valve (4) can be increased temporarily.
公开/授权文献
- EP1900607B1 Oil pressure supply circuit for industrial vehicle 公开/授权日：2010-02-24
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