发明名称 |
Hydraulic pump and actuator for parallel auxiliary leaf spring |
摘要 |
Selectively engagable auxiliary leaf springs (38 or 138) for vertically supporting a vehicle chassis (32) on an axle assembly (22 or 102) in parallel with main suspension springs (34 or 114). In three of the disclosed embodiments, both ends (38b,38a) of the auxiliary springs (38) are pivotally atached. In two other embodiments, one end (138a) of the auxiliary leaf springs (142) is pivotally attached and the other end (138b) is rigidly affixed in cantilever fashion. Actuators (56 or 142) are employed to selectively enable or increase load supporting of the auxiliary leaf springs. One of the actuators is a hydraulic actuator (142) which receives pressurized fluid from a pump (148) driven by jounce of the axle assembly (22 or 102).
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申请公布号 |
US4982972(A) |
申请公布日期 |
1991.01.08 |
申请号 |
US19890457025 |
申请日期 |
1989.12.26 |
申请人 |
EATON CORPORATION |
发明人 |
PRESTON, DAVID M.;WALTON, ERLEN B.;OLIVER, JAMES L.;JURIGA, JAMES A. |
分类号 |
B60G17/027;B60G17/033 |
主分类号 |
B60G17/027 |
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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