Refrigerant expansion device

Details Refrigerant expansion device Refrigerant expansion device

1985-08-19

1987-01-06

King, Lloyd L.

Refrigeration

Refrigeration producer

Compressor-condenser-evaporator circuit

623241, 623246, 137202, 1375135, 13753311, F25B 4106

Patent

active

046336818

ABSTRACT:
An expansion device for refrigeration systems replaces capillary tubes and automatic expansion valves. A housing is provided having an inlet tube for connection to the liquid line from the condenser and an outlet tube for connection to the evaporator. The outlet tube has a valve like seat in its inner end and orifice grooves formed in the seat. A steel ball is movably disposed in the housing such that liquid refrigerant during compressor operation forces the ball into the seat thereby forming an expansion orifice between the ball and the seat.

REFERENCES:
patent: 3659433 (1972-05-01), Shaw
patent: 3841349 (1974-10-01), Todd
patent: 3877248 (1975-04-01), Honnold, Jr.
patent: 4071045 (1978-01-01), Brandt
patent: 4341090 (1982-07-01), Ramakrishnan
patent: 4432215 (1984-02-01), Yoshida
patent: 4487215 (1984-12-01), Green
patent: 4539959 (1985-09-01), Williams

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