Adjustable stroke solenoid operated cartridge valve

Details Adjustable stroke solenoid operated cartridge valve Adjustable stroke solenoid operated cartridge valve

1997-02-20

1998-12-01

Walton, George L.

Valves and valve actuation

Fluid actuated or retarded

Pilot or servo type motor

251 38, 251 42, 251 44, 25112918, F16K 3105, F16K 3104

Patent

active

058426795

ABSTRACT:
A lower cost valve results from the use of a single machined part for a valve housing. The housing is made of a non-magnetic material which can be less expensive and eliminates the requirement for screens or filters in automotive applications. Providing a one-piece plunger and pilot valve with a high guiding length minimizes tilting of the pilot. Further, the one-piece housing allows for one common bore for guiding the plunger with the pilot and a poppet. The two ideal concentric surfaces make the poppet outer diameter concentric to the pilot hole. Finally, the use of an adjustable stroke valve eliminates the need for a separate needle valve, providing further cost savings.

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