Auxiliary heater for vehicles

Details Auxiliary heater for vehicles Auxiliary heater for vehicles

1978-04-24

1980-08-12

King, Lloyd L.

Stoves and furnaces

Hot-air furnaces

Compressed air

237 123C, 165135, 165155, F24H 306

Patent

active

042167590

ABSTRACT:
An auxiliary heater device comprises a tubular combustion chamber surrounded by a heat exchanger 50 as to define a gap therebetween. The peripheral wall of the combustion chamber is provided with a plurality of circumferential projections that extend into the gap in a manner that reduces direct contact heat exchange between the combustion gases flowing through the gap and the peripheral wall by blocking axial flow of the gases along the wall in contact therewith and by deflecting these gases toward the heat exchanger pipe.

REFERENCES:
patent: 1947716 (1934-02-01), Hyatt
patent: 2579507 (1951-12-01), MacCracken
patent: 3133527 (1964-05-01), Mizer
patent: 3479689 (1969-11-01), Kurzke et al.
patent: 3607125 (1971-09-01), Kydd
patent: 3779229 (1973-12-01), Volbehr

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