发明名称 |
Hydraulic damping force control unit, hydraulic shock absorber, front fork for vehicle, and hydraulic rotary damper |
摘要 |
A damping force is generated by keeping a damping force control valve closed when a piston of a hydraulic shock absorber starts to move from compression side dead center or expansion side dead center. A damping force control valve including a poppet valve for opening and closing a first fluid path is provided. A pilot pressure chamber defined from the fluid path by a valve element of the damping force control valve is provided. A linear solenoid and a pilot valve for increasing and reducing the hydraulic pressure in the pilot pressure chamber are provided. A check valve disposed in parallel with the damping force control valve is provided in a piston. A communication path for communication between the first fluid path downstream of the damping force control valve and the pilot pressure chamber is provided.
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申请公布号 |
US7448479(B2) |
申请公布日期 |
2008.11.11 |
申请号 |
US20050221577 |
申请日期 |
2005.09.07 |
申请人 |
YAMAHA HATSUDOKI KABUSHIKI KAISHA |
发明人 |
FUKUDA HIROMI;NAKANOSONO HARUHIKO |
分类号 |
F16F9/46 |
主分类号 |
F16F9/46 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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