System for heating air

Details System for heating air System for heating air

1979-10-03

1981-09-29

Makay, Albert J.

Heating systems

Heat and power plants

237 123A, 165DIG2, 60689, F24D 500

Patent

active

042918340

ABSTRACT:
An air heating system comprises a duct housing an air-cooled internal combustion engine which drives a fan to cause air to be drawn in through an inlet mouth of the duct and blown through the duct to a utilizer. The exhaust gases from the engine are fed as heating fluid to a heat exchanger through which they pass in a helical path concentric with the axis of the duct. Pre-heating of the air drawn into the duct can be achieved by providing a second heat exchanger through which air must flow before entering the duct inlet. The heating fluid for the second heat exchanger comprises a mixture of the used air from the utilizer and the exhaust gases leaving the main heat exchanger in the duct.

REFERENCES:
patent: 1323889 (1919-12-01), Mabee
patent: 2076382 (1937-04-01), Minton
patent: 2273502 (1942-02-01), Couse

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