FIELD: vehicles. SUBSTANCE: device 2 has heater 6 which operates by burning a fluid fuel and has exhaust gas (fluid) heat exchanger 24 connected to fluid-air heat exchanger 4 by a fluid flow for feeding the heated air for vehicle heating. The fluid-air heat exchanger is integrated with at least the part of the heater in which the exhaust gas (fluid) heat exchanger made with an annular cavity for gas (fluid) flow of helical line shape is positioned. EFFECT: improved structure. 10 cl, 6 dwg
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Authors
Dates
1994-06-30—Published
1991-09-06—Filed