US 5,211,603 AGranted

Air induction device for use in motor vehicle

AssigneesNissan Motor Co., Ltd., Calsonic Corporation

InventorsKazumasa Tanaka, Hidenobu Arakawa

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Abstract

An air induction device for use in a motor vehicle. The vehicle has first and second air passages through which outside air and inside air pass respectively. The air induction device comprises a casing in which a motor-driven blower fan is installed. The casing has upper and lower portions. The upper portion has at least two openings which are respectively connected to the first and second air passages and selectively closed and opened by a door structure. The lower portion includes a bottom wall portion and two inclined side wall portions which are raised from a periphery of the bottom wall portion. An outlet passage conveys air from the interior of the casing to a remote position. The two inclined side wall portions are formed with respective lower inlet openings which are connected to the second air passage and selectively closed and opened by respective pivot doors. Each door is arranged to pivot outside the casing.

Claims8

Dependent claims

An air induction device for use in a motor vehicle having first and second air passage means through which outside air and inside air pass respectively, third and fourth air passage means through with inside air pass, said air induction device comprising:

a casing having upper and lower portions, said lower portion including a bottom wall portion and two inclined side wall portions which are raised from a periphery of said bottom wall portion;
an electric motor installed in said casing;
a blower fan installed in said casing and driven by said electric motor;
outlet passage means for conveying air from the interior of said casing to a remote position;
first means defining in said upper portion of said casing at least two upper inlet openings which are respectively connected to said first and second air passage means;
door means for selectively opening and closing the two openings of said upper portion;
third and fourth means defining in the two inclined side wall portions respective lower inlet openings which are connected to said second air passage means;
and
two doors pivotally connected to the two inclined side wall portions to selectively open and close the respective lower inlet openings respectively, each door being arranged to pivot outside said casing.

6 more elements

Dependencies are inferred from the claim text.