Ventilation arrangement for automotive vehicle or the like

Details Ventilation arrangement for automotive vehicle or the like Ventilation arrangement for automotive vehicle or the like

1983-12-05

1986-01-28

Joyce, Harold

98 207, B60H 100

Patent

active

045663734

ABSTRACT:
A by-pass passage is provided around the blower of a vehicle ventilation and/or air conditioning system in order to avoid the flow resistance caused by the blower when it is not energized and accordingly increase the amount of air which may be rammed into the passenger cabin at low vehicle speeds. The passage is controlled by a door which is opened when the blower is off and the system is conditioned to induct fresh air from outside the vehicle.

REFERENCES:
patent: 2185486 (1940-01-01), Wahlberg
patent: 2694970 (1954-11-01), Schneider
patent: 2787205 (1957-04-01), Wilfert
patent: 2832277 (1958-04-01), Simons et al.
patent: 3288048 (1966-11-01), Laing
patent: 3315730 (1967-04-01), Weaver et al.
patent: 3387549 (1968-06-01), Castelet
patent: 4408713 (1983-10-01), Lijima et al.

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