Differential pressure valve

Details Differential pressure valve Differential pressure valve

2006-01-17

2006-01-17

Bastianelli, John (Department: 3751)

Valves and valve actuation

Fluid actuated or retarded

Pilot or servo type motor

C251S030030

Reexamination Certificate

active

06986498

ABSTRACT:
A differential pressure valve simplified in construction includes a piston integrally formed with a main valve element and arranged on the upstream side of a main valve to define a chamber for introducing refrigerant from an inlet port. The piston has an orifice and a refrigerant passage for communicating with a chamber on a back surface side of the piston. The chamber is configured such that it can be connected, via a refrigerant passage and a pilot valve element, to a chamber on the downstream side of the main valve, which communicates with an outlet port.

REFERENCES:
patent: 2329001 (1943-09-01), Robinson
patent: 2398775 (1946-04-01), Beekley et al.
patent: 2657673 (1953-11-01), Littlefield
patent: 2926882 (1960-03-01), Russell
patent: 2990155 (1961-06-01), Selinder
patent: 3100103 (1963-08-01), Bullard
patent: 3218022 (1965-11-01), Lewis
patent: 3381932 (1968-05-01), O'Kane
patent: 4201362 (1980-05-01), Nishimi et al.
patent: 6142445 (2000-11-01), Kawaguchi et al.
patent: 6315266 (2001-11-01), Hirota et al.
patent: 1 058 800 (1959-06-01), None
patent: 1 069 359 (2001-01-01), None
patent: 1 090 786 (2001-04-01), None
patent: 2001027355 (2001-01-01), None

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