Heat exchange – With timer – programmer – time delay – or condition responsive... – Having heating and cooling capability
Reexamination Certificate
2005-01-18
2005-01-18
Ciric, Ljiljana (Department: 3753)
Heat exchange
With timer, programmer, time delay, or condition responsive...
Having heating and cooling capability
C165S043000, C165S299000, C237S005000, C237S01230B, C062S238600, C062S196400
Reexamination Certificate
active
06843312
ABSTRACT:
An air conditioning system has a refrigerant cycle, a coolant cycle, a refrigerant/coolant heat exchanger, coupling these cycles so as to transfer heat, and a valve for operating mode-dependent control of the refrigerant flow, whereby the air conditioning system can be operated not only in air conditioning mode but also in a heat pump or reheat mode. An internal combustion engine exhaust gas/coolant heat exchanger is connected upstream in series to the refrigerant/coolant heat exchanger in the coolant cycle in the heat pump mode; and/or in the reheat operating mode the refrigerant/coolant heat exchanger functions as a condenser/gas cooler, connected upstream in series on the coolant side to the supply air/coolant heat exchanger. In addition or as an alternative, a drying operating mode can be provided for drying the supply air/refrigerant heat exchanger with reversed air conveying direction.
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Burk Roland
Krauss Hans-Joachim
Mittelstrass Hagen
Staffa Karl-Heinz
Walter Christoph
BEHR GmbH & Co.
Ciric Ljiljana
Crowell & Moring LLP
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