Pilot-operated valve having constant closing rate

Details Pilot-operated valve having constant closing rate Pilot-operated valve having constant closing rate

1975-09-19

1977-11-15

Rosenthal, Arnold

Valves and valve actuation

Fluid actuated or retarded

Pilot or servo type motor

251 33, F16K 31385

Patent

active

040582876

ABSTRACT:
A valve having a valve body formed with an internal orifice between the valve inlet and outlet ports, and a main valve member for opening and closing the orifice. A chamber above the valve member is supplied with high pressure fluid through a bleed passageway extending between the chamber and the inlet port. A pilot valve controls exhausting of the chamber when the main valve is to be opened. A flow control element in the bleed passageway maintains a constant rate of fluid flow for filling the chamber, to close the main valve, regardless of the pressure differential across the flow control element. The bleed passageway may be in either the valve body or the main valve member. The flow control element may be an annular rubber washer.

REFERENCES:
patent: 2747606 (1956-05-01), Adams et al.
patent: 2870986 (1959-01-01), Vargo
patent: 3103338 (1963-09-01), Marmo
patent: 3794060 (1974-02-01), Perkins

Affiliated with

Also associated with

Rating

Pilot-operated valve having constant closing rate does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Pilot-operated valve having constant closing rate, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pilot-operated valve having constant closing rate will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1717281