发明名称 |
Hydraulic servocontroller for a hydrostatic transmission |
摘要 |
A hydrostatic transmission having a variable displacement pump whose control element varies the transmission ratio and output direction of the transmission is controlled by a hydraulic servomechanism including a direction-reversing valve and a cylinder connected to this valve. A direction selector acts upon the valve and a mechanical or hydraulic locking mechanism is provided to prevent shifting of the valve until the control element of the pump has been restored to its neutral position before direction change.
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申请公布号 |
US4188789(A) |
申请公布日期 |
1980.02.19 |
申请号 |
US19780869223 |
申请日期 |
1978.01.13 |
申请人 |
ZAHNRADFABRIK FRIEDRICHSHAFEN AG |
发明人 |
HAMMA, KARLMANN |
分类号 |
F16H61/42;F16H61/437;F16H61/439;F16H61/46;(IPC1-7):F16H39/46 |
主分类号 |
F16H61/42 |
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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