F - Mech Eng,Light,Heat,Weapons – 24 – D
Patent
F - Mech Eng,Light,Heat,Weapons
24
D
F24D 15/02 (2006.01) F24C 3/14 (2006.01)
Patent
CA 2609421
The portable out door heater burns fuel such as propane from a pressurized gas fuel tank. The fuel enters an entrainment tube through a nozzle orifice that is coaxial with the cylindrical entrainment tube axis. Air enters the entrainment through air entry apertures and is entrained with the high velocity fuel stream. The air and fuel mixture passes from the entrainment tube into a coaxial cylindrical burner supply tube. The supply tube has a smaller diameter to accelerate movement of the air and fuel mixture. A cylindrical combustion chamber receives the air fuel mixture moving tangentially to the combustion chamber inside wall. A ring inside the chamber retards movement of the fuel charge. The fuel oxidizes at a temperature that reduces odors and converts carbon monoxide to carbon dioxide. The products of combustion pass through a silencer and into an area to be heated. A choke and igniter initiate combustion.
Blake Cassels & Graydon Llp
Scentfree Outdoors L.c.
LandOfFree
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