Catalytic combustion type heater

Details Catalytic combustion type heater Catalytic combustion type heater

1998-07-31

2000-04-11

Lazarus, Ira S.

Combustion

Porous, capillary, particulate or sievelike flame holder,...

Means supplying fuel for passage through the flame holding...

431 6, 431 12, 431 62, 431 72, 431326, F23D 1412, F23N 520, F23N 1144

Patent

active

060481986

ABSTRACT:
A catalytic combustion type heater set so as to reduce the exhaust emission at the time of ignition and the time of extinguishment by, at the time of ignition, providing a precombustion period and making the amounts of the fuel and air fed larger than the air-fuel ratio of the steady combustion period to prevent incomplete combustion and by, at the time of extinguishment, stopping the feeding of fuel and feeding only air in an amount lower than that before the fuel stops being fed so as to completely burn the remaining fuel, then feeding purging air.

REFERENCES:
patent: 4019316 (1977-04-01), Pfefferle
patent: 4112675 (1978-09-01), Pillsbury et al.
patent: 4784599 (1988-11-01), Garbo
patent: 5127822 (1992-07-01), Nakayama et al.
patent: 5137444 (1992-08-01), Grebe et al.
patent: 5421719 (1995-06-01), Saito et al.

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