Heat exchange – With vehicle feature – Heating and cooling
Patent
1990-05-18
1991-08-27
Ford, John K.
Heat exchange
With vehicle feature
Heating and cooling
165 43, 165 22, 237 123A, 237 123B, 98 208, 98 211, 236 13, B60H 100
Patent
active
050425668
ABSTRACT:
Improved air-conditioning of the rear-seat area of a motor vehicle is achieved substantially independently from the front-seat area in a heating or air-conditioning system having means for controlling the temperature of the supply air via a front-seat control unit by employing a front air flap with a cool air passage at the inlet of a heat exchanger. A front-seat air-mix chamber is connected with a rear-seat air-mix chamber having a rear-seat area duct, a rear-seat foot duct, and a rear-seat air-mix flap with a cool air passage therethrough to control the proportion of cool and warm air entering the ducts. Cool air is provided from the inlet side of a heat exchanger flowing through the cool air passage in the front air flap and the cool air passage in the rear-seat air-mix flap while warm air is provided from the outlet of the heat exchanger. The rear-seat air-mix flap is actuated either jointly with a front-seat air-mix flap in a front-seat air-mix chamber by a temperature-setting element on the front-seat control unit or by a separate rear-seat control unit.
REFERENCES:
patent: 4665971 (1987-05-01), Sakurai
patent: 4899809 (1990-02-01), Takenaka et al.
Ford John K.
Siemens Aktiengesellschaft
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