Control spool valve

Details Control spool valve Control spool valve

1985-02-05

1985-07-30

Favors, Edward G.

Fluid handling

Systems

Multi-way valve unit

13762548, 13762568, F15B 1308

Patent

active

045315469

ABSTRACT:
A spool valve having a pressure inlet port, a work port and a tank port. A spool valve is responsible for selectively communicating the pressure inlet port to the work port and the work port to the tank port. The work port is located between the pressure inlet port and the tank port. The spool contains a passageway which receives fluid from the pressure inlet port and directs the fluid between the work port and the tank port to provide a pressurized fluid seal between the work port and the tank port.

REFERENCES:
patent: 3370613 (1968-02-01), Weaver
patent: 3563272 (1971-02-01), Mercier
patent: 3742982 (1973-07-01), Miller
patent: 4009730 (1977-03-01), Starling

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