发明名称 |
RAILCAR CUSHIONING DEVICE |
摘要 |
A railcar cushioning device has a hydraulic cylinder holding pressurized fluid. The cylinder has a cylinder body with an inner chamber and a reservoir chamber. A piston is movably positioned in the inner chamber. The cylinder body has a bleed opening allowing bleed flow from the inner chamber to the reservoir chamber. A bleed orifice valve in the bleed opening has a valve housing and a poppet received in the valve housing that moves to allow and restrict fluid flow through a bleed flow path based on the pressure of the fluid. The poppet has an orifice channel allowing a restricted fluid flow through the valve housing when the pressure in the inner chamber is greater than the pressure in the reservoir chamber.
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申请公布号 |
US2013220961(A1) |
申请公布日期 |
2013.08.29 |
申请号 |
US201213408502 |
申请日期 |
2012.02.29 |
申请人 |
SMITH ALLEN;AMSTED RAIL COMPANY, INC. |
发明人 |
SMITH ALLEN |
分类号 |
B61G9/08;B61G11/12;F16F9/19 |
主分类号 |
B61G9/08 |
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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