Air-distributor box

Details Air-distributor box Air-distributor box

1994-12-02

1996-09-17

Joyce, Harold

Ventilation

Vehicle

Having inlet airway

454152, B60H 126

Patent

active

055563333

ABSTRACT:
An air-distributor box for a heating/air-conditioning system of motor vehicles has a first air-outflow orifice for the connection of a lateral nozzle and a second air-outflow orifice, arranged below the first air-outflow orifice, for ventilating the foot space as well as an air flap controlling the air stream to the second air-outflow orifice. In order to avoid the lateral nozzle having to be additionally throttled by hand from outside by the driver or front-seat passenger with the air flap opened for ventilating the foot space to a sufficient extent, the first air-outflow orifice to the lateral nozzle is assigned a throttle diaphragm. The diaphragm is positively coupled to the air flap so that the throttle diaphragm throttles the orifice cross-section of the first air-outflow orifice to the maximum extent in an open position of the air flap allowing the full air stream to the second air-outflow orifice and exposes it completely in the closing position of the air flap shutting off the air stream to the second air-outflow orifice.

REFERENCES:
patent: 1754441 (1930-03-01), Campbell
patent: 3388654 (1968-06-01), Aldrich, Jr. et al.

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