Motor vehicle heating device

Details Motor vehicle heating device Motor vehicle heating device

B - Operations, Transporting

60

H

B60H 1/22 (2006.01)

Patent

CA 2188116

The invention relates to a motor vehicle heating device with a burner, to which combustion air is supplied via combustion air inlet openings by means of a fan and to which fuel gas is supplied via a fuel gas supply line, the combustion air and the fuel gas entering on the intake side of the fan. It is provided according to the invention, for a simpler structure and good mixing of the fuel gas/combustion air mixture, that entry of fuel gas is controlled by means of a valve or switch controlled by the negative pressure of the fan. Fuel gas is supplied in doing so, preferably with a negative pressure which is less than atmospheric pressure. For especially- simple control of gas supply, there is a membrane which causes the fuel gas supply line to close when the fan stops.

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