Power gas burner

Details Power gas burner Power gas burner

F - Mech Eng,Light,Heat,Weapons

23

N

158/48

F23N 1/02 (2006.01)

Patent

CA 1168569

POWER GAS BURNER ABSTRACT OF THE DISCLOSURE A power gas burner of the gun type. The burner embodies an air tube that is mounted on the appliance with which the burner is to be used. Primary and secondary air is supplied to the air tube by a blower of the turbo-compressor type that is driven by a motor through an adjustable speed drive. Fuel gas is supplied to the air tube through an eductor tube. Gas is supplied to the eductor at regulated pressure through a metering orifice. The discharge end of the eductor is open and is located on the axis of the air tube and in the throat of a venturi that is also mounted on the axis of the air tube. Air supplied by the blower flows at high velocity through the throat of the venturi on the exterior of the eductor, resulting in a reduction in pressure in the venturi at the discharge end of the eductor. This primary air is mixed in the venturi with gas discharged from the eductor. A flame retention burner head is disposed at the discharge end of the air tube and the mixture of primary air and gas is discharged through the center of the burner head. Secondary air flows around the venturi in the air tube and is discharged through the outer portions of the burner head. A spark igniter is provided for igniting the primary air-fuel mixture near the burner head. The flame propagates outwardly, mixing with the secondary air downstream of the burner head,

378888

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