Flow control valve for refrigeration system

Details Flow control valve for refrigeration system Flow control valve for refrigeration system

2007-07-10

2007-07-10

Keasel, Eric (Department: 3753)

Fluid handling

Systems

Sequentially progressive opening or closing of plural valves

C137S630180, C251S267000

Reexamination Certificate

active

10886687

ABSTRACT:
A flow control valve includes a valve body defining fluid inlet and outlet sections interconnected by a connecting port. A valve unit is disposed in the valve body and is operably connected to an actuator to be moved thereby for opening and closing the connecting port. The valve unit includes a valve element which has a bleed passage extending therethrough for communicating the fluid inlet and outlet sections with one another. A bleed piston is operably connected to the actuator and is movable thereby relative to the valve element for opening the bleed passage when the valve unit is in a port-closing position. The valve unit also includes a pressure balancing passage which communicates front and rear ends of the valve element with one another and tending to aid in statically and dynamically balancing the fluid pressures acting on the valve element.

REFERENCES:
patent: 2541176 (1951-02-01), Rockwell
patent: 2710019 (1955-06-01), Reasoner et al.
patent: 3001551 (1961-09-01), Wyser
patent: 3347270 (1967-10-01), Cranage
patent: 3575213 (1971-04-01), Schnall
patent: 3624753 (1971-11-01), Brumm
patent: 3631894 (1972-01-01), Frantz
patent: 3700209 (1972-10-01), Usry
patent: 3888280 (1975-06-01), Tartaglia
patent: 4002319 (1977-01-01), Pool et al.
patent: 4304264 (1981-12-01), McClintock et al.
patent: 5113902 (1992-05-01), Dorr
patent: 6460567 (2002-10-01), Hansen et al.
patent: 6568656 (2003-05-01), Wrocklage
patent: 2002/0038856 (2002-04-01), Jorgen et al.

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