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1. 发明授权

US3972189A Control for hydrostatic transmissions 失效
标题翻译：液压传动控制
公开(公告)号：US3972189A
公开(公告)日：1976-08-03
申请号：US632741
申请日：1975-11-17
申请人： Kenneth K. Knapp , Charles R. Cornell , Edwin D. Hicks
发明人： Kenneth K. Knapp , Charles R. Cornell , Edwin D. Hicks
IPC分类号： F16H61/42 , F16H61/433 , F16H39/46
CPC分类号： F16H61/4139 , F16H61/42 , F16H61/433
摘要： A control valve for a variable displacement pump or motor. The valve includes a pair of solenoids which are independently actuatable to port relatively high pressure fluid to their respective servo motor. A shuttle valve actuated by the high pressure fluid is used to simultaneously port the fluid from the other servo motor to a low pressure fluid source. A manual valving system is also provided having a pair of balls each biased into engagement with a seat to seal a passage to one of the servo motors. Movement of either ball off of its seat allows high pressure to flow to the respective servo motor. The high pressure fluid actuates the shuttle valve to port fluid from the other servo motor to the low pressure fluid source.
摘要翻译：用于可变排量泵或电动机的控制阀。该阀包括一对螺线管，其可独立地致动以将相对高压的流体输送到其相应的伺服电动机。由高压流体致动的梭阀用于将来自另一个伺服电动机的流体同时输送到低压流体源。还提供了一种手动阀系统，其具有一对球，每个球偏置成与座接合，以密封通往一个伺服电动机的通道。任何一个球从其座位移动允许高压流向相应的伺服电机。高压流体致动梭阀以将流体从另一伺服马达输送到低压流体源。

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