Fuel burning heater

Details Fuel burning heater Fuel burning heater

1995-09-19

1997-04-01

Price, Carl D.

Combustion

Combustion products return structure

431 9, 431 12, 431 90, F23M 900

Patent

active

056160216

ABSTRACT:
A fuel burning heater comprises a housing 1 provided with a fluid passage 13 defined in a wall thereof, and a burner 2 accommodated in an inside space of the housing 1 to heat fluid filled in the fluid passage 13. A fuel supply device 3 supplies fuel into the burner 2. An air supply device 4, including an air supply pipe 41, supplies air into the burner 2. An exhaust gas circulating device 5 circulates exhaust gas, produced in the burner 2 by combustion of air-fuel mixture, to the air supply pipe 41. A control unit 7 increases an amount of the exhaust gas circulated by the exhaust gas circulating device 5 when an amount of fuel supplied by the fuel supply device 3 is reduced.

REFERENCES:
patent: 3934969 (1976-01-01), Noda et al.
patent: 4030874 (1977-06-01), Vollerin
patent: 4538985 (1985-09-01), Zwicker
patent: 5088918 (1992-02-01), Schaale et al.

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