Refrigeration – Automatic control – Refrigeration producer
Reexamination Certificate
2005-06-06
2009-10-13
Norman, Marc E (Department: 3744)
Refrigeration
Automatic control
Refrigeration producer
C062S510000, C062S513000
Reexamination Certificate
active
07600390
ABSTRACT:
A transcritical vapor compression system includes a fluid circuit circulating a refrigerant in a closed loop. The fluid circuit has operably disposed therein, in serial order, a first compressor, an intercooler, a second compressor with a variable capacity, a first heat exchanger, an expansion device and a second heat exchanger. The first compressor compresses the refrigerant from a low pressure to an intermediate pressure. The second compressor compresses the refrigerant from the intermediate pressure to a supercritical pressure. The first heat exchanger is positioned in a high pressure side of the fluid circuit. The second heat exchanger is positioned in a low pressure side of the fluid circuit. The expansion device reduces the pressure of the refrigerant from a supercritical pressure to a relatively lower pressure. Cooling means cools the refrigerant within one of the compressors.
REFERENCES:
patent: 3668883 (1972-06-01), Ruff et al.
patent: 3675441 (1972-07-01), Perez
patent: 4006602 (1977-02-01), Fanberg
patent: 4048814 (1977-09-01), Quack
patent: 4062188 (1977-12-01), Cutler et al.
patent: 4254637 (1981-03-01), Brauch et al.
patent: 4559786 (1985-12-01), Schuck
patent: 4594858 (1986-06-01), Shaw
patent: 4947655 (1990-08-01), Shaw
patent: 5094085 (1992-03-01), Irino
patent: 5142872 (1992-09-01), James et al.
patent: 5180293 (1993-01-01), Hartl
patent: 5394709 (1995-03-01), Lorentzen
patent: 5465581 (1995-11-01), Haertl et al.
patent: 5685160 (1997-11-01), Abersfelder et al.
patent: 5768911 (1998-06-01), Dube
patent: 5927088 (1999-07-01), Shaw
patent: 6178761 (2001-01-01), Karl
patent: 6182456 (2001-02-01), Yamaguchi et al.
patent: 6216477 (2001-04-01), Dienhart et al.
patent: 6298674 (2001-10-01), Finkenberger et al.
patent: 6341496 (2002-01-01), Kettner et al.
patent: 6385980 (2002-05-01), Sienel
patent: 6481216 (2002-11-01), Simmons et al.
patent: 6484519 (2002-11-01), Hesse et al.
patent: 6516626 (2003-02-01), Escobar et al.
patent: 6523360 (2003-02-01), Watanabe et al.
patent: 6574978 (2003-06-01), Flynn et al.
patent: 7111471 (2006-09-01), Yamasaki et al.
patent: 2002/0007637 (2002-01-01), Simmons et al.
patent: 2003/0074913 (2003-04-01), Ebara
patent: 2003/0177782 (2003-09-01), Gopalnarayanan et al.
patent: 2005/0279127 (2005-12-01), Jia et al.
patent: 0 908 688 (1999-04-01), None
patent: 1 057 669 (2000-12-01), None
patent: 1 462 738 (2004-09-01), None
patent: 2002/195673 (2002-07-01), None
patent: 2003-74997 (2003-03-01), None
(*) = English language abstract only.
Baker & Daniels LLP
Norman Marc E
Tecumseh Products Company
LandOfFree
Method and apparatus for control of carbon dioxide gas... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for control of carbon dioxide gas..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for control of carbon dioxide gas... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4118291