Ejector cycle

Details Ejector cycle Ejector cycle

2005-04-12

2005-04-12

Jones, Melvin (Department: 3744)

Refrigeration

Refrigeration producer

Compressor-condenser-evaporator circuit

C062S116000, C062S175000, C062S191000

Reexamination Certificate

active

06877339

ABSTRACT:
In an ejector cycle with an ejector including a nozzle for decompressing refrigerant, a variable throttle device is disposed upstream from the nozzle to decompress and expand high-pressure refrigerant flowing from a condenser. For example, the variable throttle device decompresses the high-pressure refrigerant in a gas-liquid two-phase state at an upstream position from the nozzle of the ejector. In addition, the variable throttle device includes a back pressure chamber having an inner pressure that changes by sensing a refrigerant temperature at a refrigerant outlet side of an evaporator, and a pressure introducing means for introducing a refrigerant pressure of a refrigerant outlet side of the evaporator to a side opposite to the back pressure chamber with respect to a diaphragm. Therefore, a pressure difference between the back pressure chamber and the side opposite to the back pressure chamber can be made smaller.

REFERENCES:
patent: 6477857 (2002-11-01), Takeuchi et al.
patent: 6604379 (2003-08-01), Hotta et al.
patent: 6729149 (2004-05-01), Takeuchi
patent: 20040007014 (2004-01-01), Takeuchi et al.
patent: 5-26522 (1993-02-01), None
patent: 5-149652 (1993-06-01), None

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