Control apparatus for a pump

Details Control apparatus for a pump Control apparatus for a pump

F - Mech Eng,Light,Heat,Weapons

04

B

F04B 49/22 (2006.01) F04B 47/00 (2006.01) F04B 47/02 (2006.01) F04B 47/04 (2006.01)

Patent

CA 2227707

A control apparatus for a pump includes hydraulic cylinders connected to the pump. Movement of pistons within the hydraulic cylinders between extended and retracted positions provide motive force to the pump. A drive motor is provided with a rotary output shaft on which is mounted a cam. A control valve has an actuator arm which engages the cam. When the actuator arm is in a first position hydraulic fluid is supplied to the hydraulic cylinders to moving the piston to an extended position. When the actuator arm is in a second position hydraulic fluid is supplied to the hydraulic cylinders to move the piston to a retracted position. Movement of the actuator arm is governed by rotational movement of the cam.

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