发明名称 |
Pump assembly for hand fork-lift truck |
摘要 |
Pump assembly for the lift cylinder of a hand fork-lift truck includes a piston pump activated by a bar of a hand fork-lift truck and has a piston chamber and an annulus collector. A three stage control valve connects the lift cylinder with a tank in the lowered setting and connects the piston chamber with the tank in a neutral setting and in a pump setting, connects the piston chamber with the lift cylinder through a first check-valve, with the tank through a second check-valve, a third check-valve between the piston chamber and the annulus collector open to the piston chamber, and a reversing valve between the piston chamber and the annulus collector.
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申请公布号 |
US7401467(B2) |
申请公布日期 |
2008.07.22 |
申请号 |
US20040935878 |
申请日期 |
2004.09.08 |
申请人 |
JUNGHEINRICH AKTIENGESELLSCHAFT |
发明人 |
GERBIER STEPHANE;MAGENS ERNST-PETER;MAENKEN FRANK;NISSEN NIS-GEORG;VON WERDER MARTIN |
分类号 |
B62B3/065;B66F3/22;B66F9/06;B66F9/22 |
主分类号 |
B62B3/065 |
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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