Ventilation unit for a motor vehicle

Details Ventilation unit for a motor vehicle Ventilation unit for a motor vehicle

2005-05-31

2005-05-31

Lu, Jiping (Department: 3749)

Ventilation

Vehicle

Having inlet airway

C454S126000, C454S160000

Reexamination Certificate

active

06899614

ABSTRACT:
A ventilation unit for a motor vehicle is provided comprising a housing with air ducts for supplying air through panel openings into the interior of the vehicle. At least one draft tube is disposed in the housing adjacent said panel openings, where the at least on draft tube includes an outlet slot arranged to be exposed to the air stream exiting the panel openings. The draft created by the air stream crossing over the slot draws hot air from the interior of the draft tube to be mixed with the exiting air stream. The amount of drafting created by the air stream depends on the velocity of the exiting airflow. This relationship in turn makes the ventilation unit of the present invention perform as a passive device.

REFERENCES:
patent: 5823869 (1998-10-01), Paturzo
patent: 6318102 (2001-11-01), Asou et al.
patent: 6482081 (2002-11-01), Vincent et al.
patent: 6616523 (2003-09-01), Tani et al.
patent: 6783173 (2004-08-01), Nakamura et al.

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