Portable gas-fired forced-draft heater

Details Portable gas-fired forced-draft heater Portable gas-fired forced-draft heater

1987-02-02

1988-08-09

Scott, Samuel

Combustion

Flame holder having protective flame enclosing or flame...

431353, F23D 1446

Patent

active

047624884

ABSTRACT:
A portable gas-fired forced-draft heater has a burner assembly mounted in a tube coupled to the intake port of a motor-driven blower. The burner operates in a stream of high velocity air which flows past the burner to the blower. The burner includes shrouds which cooperate with a fuel and air mixing nozzle to enable fuel to be burned efficiently and reliably over a wide range of fuel flow rates to the burner. A flame stabilization surface is spaced appropriately from the nozzle to enable reliable ignition of the fuel-air mixture. A controlled portion of the warm gases passing through the blower is routed to a receptacle for a fuel container to maintain pressure in the container as the preferably liquified gas fuel is consumed during operation of the heater.

REFERENCES:
patent: 2220603 (1940-11-01), Hirtz et al.
patent: 2440491 (1948-04-01), Schwander
patent: 2518364 (1950-08-01), Owen
patent: 2581316 (1952-01-01), Wolfersperger
patent: 3223141 (1965-12-01), Safford
patent: 4062343 (1977-12-01), Spielman
patent: 4063876 (1977-12-01), Schweiss

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