Ejector cycle

Details Ejector cycle Ejector cycle

2005-03-29

2005-03-29

Doerrler, William C. (Department: 3744)

Refrigeration

Automatic control

Vacuumized chamber with open outlet

C062S500000

Reexamination Certificate

active

06871506

ABSTRACT:
In an ejector cycle with an ejector including a nozzle for decompressing refrigerant, a variable throttle is disposed upstream from the nozzle of the ejector to decompress and expand high-pressure refrigerant flowing from a radiator. For example, the variable throttle decompresses and expands the high-pressure refrigerant in a gas-liquid two-phase state at an upstream position from the nozzle of the ejector. The variable throttle controls a throttle opening degree so that a refrigerant super-heating degree at a refrigerant outlet side of an evaporator or at a refrigerant suction side of a compressor becomes in a predetermined range. Accordingly, the ejector cycle has an improved nozzle efficiency and an improved ejector efficiency in a wide load variation range of the ejector cycle.

REFERENCES:
patent: 3701264 (1972-10-01), Newton
patent: 5706665 (1998-01-01), Gregory
patent: 6370889 (2002-04-01), Okazaki et al.
patent: 6477857 (2002-11-01), Takeuchi et al.
patent: 6729149 (2004-05-01), Takeuchi
patent: 6729158 (2004-05-01), Sakai et al.
patent: 5-26522 (1993-02-01), None
patent: 5-149652 (1993-06-01), None

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