Incrementally adjustable electronic expansion valve

Details Incrementally adjustable electronic expansion valve Incrementally adjustable electronic expansion valve

1983-12-22

1985-06-18

Tanner, Harry

Refrigeration

Automatic control

Refrigeration producer

251133, 251282, 251DIG1, F25B 4104, F16K 3102

Patent

active

045234361

ABSTRACT:
An incrementally adjustable electronic expansion valve for precisely controlling refrigerant flow through the valve is disclosed. Basically, the expansion valve includes a stepper motor, a sleeve member, and an orifice assembly. The sleeve member is incrementally moved over a slot(s) in the orifice assembly by operation of the stepper motor to control refrigerant flow between an inlet and an outlet of an expansion valve. A control system provides electronic digital control signals to the stepper motor to control operation of the motor in response to superheat of refrigerant flowing from an evaporator to a compressor of the refrigeration system. The electronic expansion valve may also include sealing means to substantially prevent refrigerant flow through the valve when the sleeve member is in its fully closed position.

REFERENCES:
patent: 1928071 (1933-09-01), Mueller
patent: 2323354 (1943-07-01), Rees
patent: 2327366 (1943-08-01), Nampa
patent: 2491905 (1949-12-01), Ray
patent: 2931673 (1960-04-01), Gondek
patent: 3070974 (1963-01-01), Greenwald
patent: 3250084 (1966-05-01), Anderson
patent: 3537272 (1970-11-01), Hales et al.
patent: 3577743 (1971-05-01), Long
patent: 3590592 (1971-07-01), High
patent: 3914952 (1975-10-01), Barbier
patent: 3967781 (1976-07-01), Kunz
patent: 3987642 (1976-10-01), Portoso et al.
patent: 4028593 (1977-06-01), Newell
patent: 4067203 (1978-01-01), Behr
patent: 4193269 (1980-03-01), Barry
patent: 4362027 (1982-12-01), Barbier
patent: 4410428 (1983-10-01), Cooper
patent: 4420947 (1983-12-01), Yoshino

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