Hydraulic circuit for pressure-controlling a hydraulic distribut

Details Hydraulic circuit for pressure-controlling a hydraulic distribut Hydraulic circuit for pressure-controlling a hydraulic distribut

1995-06-07

1996-08-20

Nguyen, Hoang

Power plants

Pressure fluid source and motor

Having condition responsive control in a system of distinct...

60452, 60468, 60494, 91517, 91518, F16D 3102, F15B 1100

Patent

active

055467504

ABSTRACT:
A control device provides a reliable way of pressure controlling a hydraulic distributor and an associated first hydraulic circuit when pressurized hydraulic fluid is simultaneously supplied to at least one other hydraulic circuit. Pilot pressure oil enters and exits the distributor through inlet and outlet passages in the pilot line. An apparatus for regulating pilot oil flow rate is interposed between the pilot line inlet passage and the hydraulic fluid line. The device includes a pressure head detection apparatus having inlet ends connected to the pilot line inlet passage and to the hydraulic circuit and an outlet end connected to the hydraulic fluid source for controlling the flow rate of the hydraulic fluid based on the highest pressure requirement.

REFERENCES:
patent: 3815477 (1974-06-01), Ailshie et al.
patent: 3883023 (1975-05-01), Bernhoft
patent: 4020867 (1977-05-01), Sumiyoshi
patent: 4089169 (1978-05-01), Miller
patent: 4325410 (1982-04-01), Bernhardt et al.
patent: 4372193 (1983-02-01), Hau
patent: 4479349 (1984-10-01), Westveer
patent: 4617854 (1986-10-01), Kropp
patent: 4914913 (1990-04-01), St. Germain et al.
patent: 4953447 (1990-09-01), Bender

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