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1. 发明授权

US4194361A Electro-mechanical control system for hydraulic displacement pumps, such as swash plate or eccenter pumps 失效
标题翻译：液压排量泵机电控制系统，如斜盘或偏心泵
公开(公告)号：US4194361A
公开(公告)日：1980-03-25
申请号：US907598
申请日：1978-05-19
申请人： Arnold Pahl , Hans-Jurgen van der Kolk , Manfred Lixenfeld
发明人： Arnold Pahl , Hans-Jurgen van der Kolk , Manfred Lixenfeld
IPC分类号： F04B49/00 , F04B49/06 , F15B9/00
CPC分类号： F04B49/002 , F04B49/065
摘要： To permit mechanical override of an electrical command system to control deflection of the swash plate or eccentricity of an axial or radial piston pump, for example upon failure of the electrical control system, a group of valves 5-8 are connected to an electrical control unit 23 and an additional control valve 4, 4' with a manual control lever 18', 30' is provided, the deflection of the swash plate 1 or eccenter ring 28 of the pump being sensed by a position transducer 22 moved by a linkage which includes the manual control lever. In normal operation, the manual control lever is maintained by spring pressure to deactivate the control valve but, under emergency conditions, the manual control lever will operate the first control valve 4, 4' to admit hydraulic control fluid to position the swash plate, or eccenter ring, respectively, the consequent movement of which is fed back through the linkage to the manual control lever.
摘要翻译：为了允许电气命令系统的机械覆盖以控制斜盘的偏转或轴向或径向活塞泵的偏心，例如在电气控制系统故障时，一组阀5-8连接到电气控制单元 23和具有手动控制杆18'，30'的附加的控制阀4,4'被设置，泵的旋转斜盘1或偏心环28的偏转由位置传感器22检测，所述位置传感器22通过连杆移动，该连杆包括手动控制杆。在正常操作中，手动控制杆通过弹簧压力保持，以使控制阀失效，但是在紧急情况下，手动控制杆将操作第一个控制阀4,4'以允许液压控制流体定位旋转斜盘，或偏心环，其随后的运动通过连杆反馈到手动控制杆。

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