Air conditioner for vehicle

Heat exchange – With timer – programmer – time delay – or condition responsive... – Having heating and cooling capability

Reexamination Certificate

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Details

C165S266000, C165S271000, C165S042000, C165S043000, C237S00200B, C237S01230R, C237S01230B, C180S065270, C180S065280

Reexamination Certificate

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08047274

ABSTRACT:
An air conditioner for a vehicle includes a main heater for heating air in a vehicle compartment using coolant of an engine of the vehicle as a heat source, and an auxiliary heater for heating air in the vehicle compartment using a heat source other than exhaust heat of the engine. In the air conditioner, a requirement signal for requiring startup of the engine is output when a temperature of the coolant of the engine is determined to be lower than a threshold, and the threshold is adjusted based on an operating state of the auxiliary heater such that as an amount of heat generated by the auxiliary heater increases, the threshold decreases. Accordingly, as the heating capacity of the auxiliary heater is increased, the startup of the engine becomes more difficult.

REFERENCES:
patent: 6079485 (2000-06-01), Esaki et al.
patent: 6504259 (2003-01-01), Kuroda et al.
patent: 6735502 (2004-05-01), Phillips et al.
patent: 7325595 (2008-02-01), Homan et al.
patent: 7836987 (2010-11-01), Aoki
patent: 5-18909 (1993-03-01), None
patent: 10-278569 (1998-10-01), None
patent: 2002-211238 (2002-07-01), None
patent: 2006-115742 (2006-05-01), None
patent: 2007-308133 (2007-11-01), None
Office Action dated Oct. 27, 2010 in the corresponding DE Application No. 102008003930.6 with English translation.
Office action dated Sep. 10, 2008 in Japanese Application No. 2007-007976.

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