发明名称 |
Railcar cushion device preload valving systems |
摘要 |
A pressure relief valving system for a rail car cushion device including several preload valves mounted in the cylinder wall of the cushion device each having both spring biasing and hydraulic biasing applied to retain a valve piston against a seat until a preload pressure is reached, and each preload valve capable of transitioning from a closed mode to an open mode at a preset preload pressure. |
申请公布号 |
AU4485597(A) |
申请公布日期 |
1998.04.17 |
申请号 |
AU19970044855 |
申请日期 |
1997.09.16 |
申请人 |
EMERALD RAIL TECHNOLOGIES, L.L.C. |
发明人 |
GLEN L. LITTEN |
分类号 |
B61G9/08;F16F9/34;F16F9/512;F16K17/04 |
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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