Heating, ventilating and/or air conditioning, and the like insta

Details Heating, ventilating and/or air conditioning, and the like insta Heating, ventilating and/or air conditioning, and the like insta

1997-03-27

1999-02-23

Joyce, Harold

Ventilation

Vehicle

Having automatic control means

454160, B60H 132

Patent

active

058737774

ABSTRACT:
A heating and ventilating installation for a motor vehicle includes a regulating valve for adjusting the distribution of fresh air, received from a fresh air delivery chamber, between a first duct and a second duct. The first duct contains a heating radiator, and the first and second ducts exhaust into an air mixing zone, which communicates with a ventilating air vent and a foot warming vent in the cabin of the vehicle. A temperature sensor is located immediately downstream of the heating radiator, and transmits signals, representing the prevailing value of the temperature of heated air in the first duct, to a processing module. The processing module controls at least the positional setting of the regulating valve, in response to a required value of cabin temperature set by the user in a control module, together with the temperature measured by the sensor, and in accordance with a predetermined law relating to a difference in temperature between the two air streams distributed to the ventilating and foot warming vents respectively.

REFERENCES:
patent: 5331823 (1994-07-01), Matsuoka
patent: 5404729 (1995-04-01), Matsuoka et al.
patent: 5511724 (1996-04-01), Frieberger et al.
patent: 5653386 (1997-08-01), Hennessee et al.
Patent Abstracts of Japan, vol. 94, No. 011 and JP-A-06 312619 (Nippondenso Co Ltd). 8 Nov. 1994.

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