Air conditioning apparatus for vehicle

Details Air conditioning apparatus for vehicle Air conditioning apparatus for vehicle

1999-01-18

2000-11-21

Lazarus, Ira S.

Heat exchange

With vehicle feature

Heating and cooling

165204, 454127, 454161, B60H 300

Patent

active

061489042

ABSTRACT:
In an air conditioning apparatus for a vehicle, a heater core is disposed in an air conditioning case so that a cool air bypass passage through which air bypasses the heater core is provided at an upper side of the heater core. When a foot/defroster mode is set, a defroster door for opening and closing a defroster opening is rotated to an intermediate position between a fully opening position and a fully closing position of the defroster opening. Therefore, a first air passage through which air from the cool air bypass passage flows into the defroster opening is provided between an inner wall portion of the air conditioning case and a top end of the defroster door. Further, a second air passage through which air from an air mixing chamber flows into the defroster opening is provided between an inner wall portion of the air conditioning case and a side end of the defroster door, and an amount of air passing through the second air passage is set to be larger than that of the first air passage. Thus, during the foot/defroster mode, temperature of air blown from the defroster opening can be improved.

REFERENCES:
patent: 5012859 (1991-05-01), Nakazawa et al.
patent: 5042566 (1991-08-01), Hildebrand
patent: 5176201 (1993-01-01), Yamamoto
patent: 5305823 (1994-04-01), Elliot

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