Heat exchange – With vehicle feature – Heating and cooling
Patent
1988-01-27
1989-07-04
Davis, Jr., Albert W.
Heat exchange
With vehicle feature
Heating and cooling
165 43, 237 123A, 237 123B, 98 205, 98 208, 98 211, B60H 300, B61D 2700
Patent
active
048441503
ABSTRACT:
An air distributing mechanism for an automotive air conditioning system comprises an air duct which includes inlet openings and a plurality of outlets, such as an upper outlet, a defroster outlet and lower outlet. An evaporator and heater core are disposed within the air duct for cooling and heating the air, respectively. The heater core is disposed within the duct to partly cover the duct passageway and form a by-pass way. A first damper, a second damper and damper means are disposed at predetermined positions so as to control the direction of air flow in the air flow duct. A bi-level damper is also disposed at a position to face toward the second damper so as to define a cooled air passageway to communicate between the by-pass way and upper outlet. Also, the cooled air and warm air are mixed with one another by change of the angle of the bi-level damper. According to the above-mentioned construction, cooling air and warm air are not only definitely separated during the bi-level mode, but also can be mixed at some constant volume, respectively. Thus the temperature of air flowing into each of the outlets is controlled as desired without using any other temperature controlling devices.
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Davis Jr. Albert W.
Ford John K.
Sanden Corporation
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