Heat exchange – Movable heating or cooling surface – Rotary drum
Patent
1990-10-22
1993-01-05
Ford, John K.
Heat exchange
Movable heating or cooling surface
Rotary drum
165 42, 165 43, 236 91E, 236 13, 454 75, B60H 300, F25B 2900, F25D 1708
Patent
active
051762013
ABSTRACT:
An automatic air conditioner for an automotive vehicle is arranged to be controlled by a control system and comprised of a heater unit disposed within an air conditioner duct to heat air inducted through an air inlet. A bypass air passage is provided to fluidly connect a first duct part upstream of the heater unit and a second duct part downstream of the heater unit, so that cool air can be introduced to the second duct part immediately upstream of an air outlet having a plurality of outlet openings. The bypass air passage is closable with a door movably disposed in the bypass air passage. The door is closed in response to a closing command generated by a manual switch. The control system is adapted to close the bypass air passage regardless of generation of the closing command when at least an air outlet for air-conditioning a passenger compartment is selected, thereby preventing temperatures of air streams blown out through a plurality of outlet openings of the air outlet from becoming nonuniform.
REFERENCES:
patent: 4478274 (1984-10-01), Naganoma et al.
patent: 4681153 (1987-07-01), Uchida
Ford John K.
Nissan Motor Co,. Ltd.
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