Stoves and furnaces – Hot-air furnaces – Compressed air
Patent
1984-02-14
1985-05-28
Yeung, James C.
Stoves and furnaces
Hot-air furnaces
Compressed air
126116R, F24H 302
Patent
active
045193754
ABSTRACT:
A hot-air heater, especially for vehicles, having a burner disposed in a housing, a fuel supply means for delivering fuel to the burner and a combustion-air fan for feeding combustion-air to said burner. Combustion-air, exhaust-gas and heating-air ducts are constructed within the housing. The housing has an opening for providing access to at least one space in which adjustable and/or replaceable parts are situated, the space being closable, relative to the outside of the heater, by means of a housing cover, and being connected to at least one of the combustion-air and exhaust-gas ducts. For reasons of safety, a combustion-air exhaust opening is provided on the pressure side of the combustion-air fan, which is blocked only when a housing cover for the housing access opening is in place, and being dimensioned in such a way that, when the combustion-air exhaust opening is not blocked, sufficient combustion-air is exhausted therethrough such that operation of the heater is not possible.
REFERENCES:
patent: 3779229 (1973-12-01), Volbehr
patent: 3989029 (1976-11-01), Friedl et al.
patent: 3989030 (1976-11-01), Friedl
patent: 4439095 (1984-03-01), Galtz et al.
Webasto-Werke W. Baier GmbH & Co.
Yeung James C.
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