Variable area refrigerant expansion device having a flexible ori

Details Variable area refrigerant expansion device having a flexible ori Variable area refrigerant expansion device having a flexible ori

1991-11-25

1993-06-01

Bennet, Henry A.

Refrigeration

Refrigeration producer

Evaporator, e.g., heat exchanger

623246, 62511, F25B 4106, F25B 1300

Patent

active

052149390

ABSTRACT:
A refrigeration expansion valve meters the flow of refrigerant therethrough through a flexible orifice that varies in cross sectional area as a function of the pressure differential across the valve. The flexible orifice is provided in a tubular elastomeric element that is supported at opposite ends by rigid support means. A rigid spacer means is provided for engaging the support means to prevent the pressure differential of the refrigeration system from exerting an axial force on the flexible flow metering element.

REFERENCES:
patent: 4263787 (1981-04-01), Domingorena
patent: 4324112 (1982-04-01), Fujiwara et al.
patent: 4412432 (1983-11-01), Brendel
patent: 4448211 (1984-05-01), Yoshida
patent: 4653291 (1987-03-01), Moeller et al.
patent: 5031416 (1991-07-01), Drucker et al.
patent: 5085058 (1992-02-01), Aaron et al.
patent: 5097866 (1992-03-01), Shapiro-Baruch et al.

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