Reduced back pressure, anti-cavitation valve system

Details Reduced back pressure, anti-cavitation valve system Reduced back pressure, anti-cavitation valve system

1978-12-21

1981-06-09

Maslousky, Paul E.

Motors: expansible chamber type

Working member position feedback to motive fluid control

Valve locking means

91388, 91433, F15B 1316, F15B 1110

Patent

active

042717493

ABSTRACT:
A valving system for regulating the pressure of the fluid within a hydraulic actuator of the type having a hydraulic cylinder and movable piston therein that separates the cylinder into a first and second chamber comprises sensing apparatus in fluid communication with the first chamber of the hydraulic actuator cylinder. The sensing apparatus senses the differences in pressure between the fluid within the first chamber and the fluid in the second chamber. The valving system further includes a pressure regulator for regulating the pressure within the first chamber in response to the sensed pressure difference. Apparatus is also included for communicating the magnitude of the sensed pressure difference to the pressure regulator.

REFERENCES:
patent: 2009608 (1935-07-01), Douglas
patent: 2439325 (1948-04-01), Wiesendanger
patent: 3628421 (1971-12-01), George
patent: 3859791 (1975-01-01), Allen et al.
patent: 4111283 (1978-09-01), Hastings, Jr.

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