公开(公告)号：US3988892A

公开(公告)日：1976-11-02

申请号：US631516

申请日：1975-11-13

Applicant: Paul Bosch

Inventor： Paul Bosch

IPC: B62D11/18 ,  F04B49/06 ,  F04B49/12 ,  F16H61/42 ,  F16H61/425 ,  F16H61/46 ,  F16H61/47 ,  F15B13/09 ,  F16H39/46

CPC classification number: F16H61/47 ,  B62D11/183 ,  F04B49/06 ,  F04B49/128 ,  F16H61/425 ,  F16H61/46 ,  F04B2201/0805 ,  F04B2201/1213 ,  F04B2207/04

Abstract: Two adjustable-stroke pumps are driven off a common drive shaft and supply fluid to respective consumers via respective control valves settable by the user of the system. Each pump is provided with its own pressure regulator operative for regulating the output pressure of the respective pump by automatically adjusting the setting of the stroke-adjustment member of the pump. Transducers generate first signals indicative of the settings of the stroke adjustment members and second signals indicative of the settings of the control valves. A control arrangement maintains the settings of the volume-adjustment members in correspondence with the settings of the control valves by automatically altering the operation of the pressure regulators in response to discrepancies between the settings indicated by the first and second signals. An anti-overload arrangement responds to overloading of the common drive machine for the pumps by altering the operation of the regulators in a way decreasing the stroke of one or both pumps. However, even during the anti-overload stroke decrease, the relative settings of the plurality of stroke-adjustment members are maintained in correspondence with the relative settings of the plurality of control valves.

Abstract translation: 两个可调节行程泵从公共驱动轴驱动，并通过系统用户可设置的相应控制阀将流体供应给相应的使用者。 每个泵都设有自己的压力调节器，用于通过自动调节泵的行程调节件的设定来调节相应泵的输出压力。 传感器产生指示行程调节构件的设置的第一信号和指示控制阀的设置的第二信号。 控制装置通过响应于由第一和第二信号指示的设置之间的差异自动改变压力调节器的操作来保持与调节阀的设置相对应的音量调节构件的设置。 防过载装置通过以减少一个或两个泵的冲程的方式改变调节器的操作来响应泵的公共驱动机的过载。 然而，即使在防过载行程减小的情况下，也能够根据多个控制阀的相对设定来维持多个行程调整部件的相对设定。