Pilot switch valve

Details Pilot switch valve Pilot switch valve

1995-07-31

1997-04-29

Michalsky, Gerald A.

Fluid handling

Systems

Multi-way valve unit

92165R, 13762566, 251 634, F15B 13043

Patent

active

056239670

ABSTRACT:
Piston boxes are attached to both ends of a valve body of a main valve segment having multiple ports and an axial valve port. Projections extending toward the valve port are provided in piston chambers provided in the piston boxes. The pistons have pressing tips to push the valve member and recesses and adapted to accommodate the sliding projections. The relative motion between the projections and recesses guide the slide of the pistons.

REFERENCES:
patent: 4434966 (1984-03-01), Zajac
patent: 5007328 (1991-04-01), Otteman
patent: 5437306 (1995-08-01), Asou et al.

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