发明名称 |
Self-pumping hydropneumatic shock strut with internal level regulation |
摘要 |
Self-pumping hydropneumatic shock strut with internal level regulation for motor vehicles with a work cylinder which is filled with oil and acted upon by pressure by at least one gas cushion arranged in a high-pressure chamber which acts as a spring. The work cylinder is divided into two work spaces by a work piston carried by a hollow piston rod. The work piston has a piston pump which is driven by the spring movements and delivers oil from a low-pressure chamber in the work space connected with the high-pressure chamber. The pump cylinder of the piston pump is formed by the hollow piston rod. A hollow pump rod which is fastened to the work cylinder and carries a suction valve at its front end penetrates into the piston rod and the bore of the hollow pump rod is connected with the low-pressure chamber. A regulating opening of the pump rod is closable as a function of the position of the work piston in the work cylinder and connects the work space connected with the high-pressure chamber with a regulating channel having a choke and opening into the low-pressure chamber. The piston pump is provided with an overload valve in which the suction valve is incorporated.
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申请公布号 |
US6202993(B1) |
申请公布日期 |
2001.03.20 |
申请号 |
US19980216644 |
申请日期 |
1998.12.18 |
申请人 |
MANNESMANN SACHS AG |
发明人 |
WILMS BERND;KIRCHNER HOLGER;MEIER ACHIM |
分类号 |
B60G17/044;(IPC1-7):E16M1/00 |
主分类号 |
B60G17/044 |
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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