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1. 发明授权

US4505355A Hydrostatic travelling drive system with towing circuit 失效
标题翻译：具有牵引电路的静液压传动系统
公开(公告)号：US4505355A
公开(公告)日：1985-03-19
申请号：US460225
申请日：1983-01-24
申请人： Helmut Scheurenberg , Manfred Funke
发明人： Helmut Scheurenberg , Manfred Funke
IPC分类号： B60K17/10 , B60T13/22
CPC分类号： B60K17/10 , B60T13/22
摘要： A towing circuit (20) for a hydrostatic travelling drive system with a prime mover, a variable displacement pump (3) and a travel motor (2) supplied thereby, a parking brake (6) arranged to be applied by a brake valve (9) and, optionally, a steering booster (30) and differential gear locking means (40) actuated by a change-over valve (34) has its inlets connected to the travel motor (2) through shut-off valve means (22). A filling pump (4) is connected to supply conduits (7,32) in which the brake valve (9) and the change-over valve (34), respectively, are arranged. Feeding conduits (26,45) provided with check valves open into these supply conduits (26,45). The feeding conduits (26,45) are connected with connecting conduits (21a,21b) governed by the shut-off valve means (22). During towing operation, the travel motor (2) driven by the wheels (1) generates the auxiliary pressures in the supply conduits (7,32) required for the operation of the steering booster (30) and the differential gear locking means (40).
摘要翻译：一种用于具有原动机的静液力传动驱动系统的牵引电路（20），由其供应的可变排量泵（3）和行驶马达（2），布置成由制动阀（9）施加的驻车制动器）和可选地由转向阀（34）致动的转向助力器（30）和差速齿轮锁定装置（40）的入口通过截止阀装置（22）连接到行进马达（2）。灌装泵（4）连接到分别布置有制动阀（9）和转换阀（34）的供应管道（7,32）。设有通向这些供应管道（26,45）的止回阀的进料管道（26,45）。进料管道（26,45）与由截止阀装置（22）控制的连接导管（21a，21b）连接。在牵引操作期间，由车轮（1）驱动的行驶马达（2）在转向助力器（30）和差速齿轮锁定装置（40）的操作所需的供应管道（7,32）中产生辅助压力，。

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