发明名称 |
Steering pressure-responsive differential lock control system |
摘要 |
A differential lock control system controls a hydraulically-operated differential lock via a solenoid valve. Energization of the solenoid valve is controlled by a circuit which includes a normally closed latching relay, a normally open relay and a pair of operator-controlled momentary contact switches. The control circuit further includes a pair of steering valve-operated switches coupled in parallel and to the normally closed relay. Each steering-operated switch is formed by a conductive plunger which is grounded by the steering valve housing whenever the steering valve spool is moved to the end of the valve bore to compress a resilient and electrically insulating O-ring interposed between the plunger and the valve spool.
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申请公布号 |
US4559847(A) |
申请公布日期 |
1985.12.24 |
申请号 |
US19830503970 |
申请日期 |
1983.06.13 |
申请人 |
DEERE & COMPANY |
发明人 |
NEWENDORP, BRUCE C.;STURTZ, TERRY L.;ANDERSON, LAWRENCE V. |
分类号 |
F16H48/30;(IPC1-7):F16H1/44 |
主分类号 |
F16H48/30 |
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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