Sectional flow control and load check assembly

Details Sectional flow control and load check assembly Sectional flow control and load check assembly

1987-07-29

1988-11-29

Look, Edward K.

Motors: expansible chamber type

With motive fluid valve

Relatively movable serial valves

137596, F15B 1108

Patent

active

047872942

ABSTRACT:
A flow control and load check valve in a spool valve between a first power core (20) and the motor ports (22,24,26) for controlling the flow therebetween as a function of the differential pressure of the first power core and the inlet pressure. A piston (66) responsive to said two pressure positions a sleeve (76) to determine the flow rate. The sleeve (76) also serves as a load check.

REFERENCES:
patent: 3455210 (1969-07-01), Allen
patent: 3592216 (1971-07-01), McMillen
patent: 4088151 (1978-05-01), Schurger
patent: 4193263 (1980-03-01), Ille
patent: 4194532 (1980-03-01), Hall
patent: 4352375 (1985-10-01), Williams
patent: 4693272 (1987-09-01), Wilke
patent: 4697498 (1987-10-01), Yoshikawa et al.

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