Heating and ventilating system for the occupant compartment of a

Details Heating and ventilating system for the occupant compartment of a Heating and ventilating system for the occupant compartment of a

1984-07-02

1985-07-30

Bennett, Henry

Heating systems

Heat and power plants

Vehicle

98 206, B60H 102

Patent

active

045316716

ABSTRACT:
A heating and ventilation apparatus for motor vehicles has a fan, a hot air channel passing over a heat exchanger, a cold air bypass, a mixing chamber, controllable valves, and ventilation or air outlet jets, wherein air streams with different temperatures are conducted in channels adjacent to each other and an opening closable by a valve flap is provided between the adjacent channels. The valve flap is controllable in dependence on the flow rate prevailing in a first channel, in such a way that the valve flap is opened to an increasing extent with increasing flow rate, so that as the flow rate increases in the first channel, air can overflow from a second channel into the first channel to an increasing extent. This allows an automatic increase in temperature of the ventilation air on setting the heating, and avoids flow of cold air back into the mixing chamber.

REFERENCES:
patent: 4355753 (1982-10-01), Watanabe

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