Refrigeration – Refrigeration producer – Compressor-condenser-evaporator circuit
Reexamination Certificate
2005-08-23
2005-08-23
Jones, Melvin (Department: 3744)
Refrigeration
Refrigeration producer
Compressor-condenser-evaporator circuit
C062S511000
Reexamination Certificate
active
06931887
ABSTRACT:
An ejector decompression device for a refrigerant cycle includes a nozzle which decompresses refrigerant flowing out of a refrigerant radiator, and a pressure increasing portion which increases a pressure of refrigerant while refrigerant jetted from the nozzle and refrigerant drawn from an evaporator are mixed. In the ejector cycle, a coaxial degree of the nozzle with respect to the pressure increasing portion is in a range between 0-30% of an inlet diameter of the pressure increasing portion. Alternatively, the pressure increasing portion has a taper portion at least in a predetermined range from the inlet of the pressure increasing portion, and the taper portion is provided to increase a passage sectional area from the inlet of the pressure increasing portion. Accordingly, collision of high-speed refrigerant jetted from the nozzle to an inner wall surface of the pressure increasing portion can be restricted.
REFERENCES:
patent: 6438993 (2002-08-01), Takeuchi et al.
patent: 6550265 (2003-04-01), Takeuchi et al.
patent: 6584794 (2003-07-01), Takeuchi et al.
Ogata Gota
Takeuchi Hirotsugu
Yamamoto Yasuhiro
Denso Corporation
Harness Dickey & Pierce PLC
Jones Melvin
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