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AssigneeWebasto Thermosysteme International GmbH
InventorsChristian Hubbauer, Bernd Mittman, Thomas Kerscher, Christine Sallinger
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The invention relates to a burner, in particular, for a motor vehicle supplementary or parking heater, for the burning of liquid fuel, in the presence of combustion air, comprising a combustion chamber (10), with a jet for the atomisation of liquid fuel, arranged before said chamber. According to the invention, the jet comprises a venturi tube (11) with the largest diameter end of the diffuser section thereof, opening into the combustion chamber (10), into the low pressure region of which, when compared with the upstream end of the diffuser section (12), the liquid fuel is introduced and through the inlet section (13) of which the air is pumped.
Burner, especially for an auxiliary motor vehicle heater, with a combustion chamber (10, 110) for combustion of liquid fuel in the presence of combustion air, and with a mixing means which comprises a nozzle for atomization of liquid fuel and a Venturi nozzle for atomization of liquid fuel, characterized in that the nozzle comprises a Venturi tube (11) or a Venturi nozzle (112) with an inlet part (13, 114) which tapers in the flow direction of the combustion air and with a diffusor part (12, 113) which widens in the flow direction of the combustion air, the end of the diffusor part larger in diameter discharging into the combustion chamber (10, 110), in the underpressure area in the transition area from the inlet part (13, 114) to the diffusor part (12, 113) the liquid fuel being supplied.
Burner as claimed in one of the preceding claims, wherein the combustion air is supplied to the inlet part (13, 114) swirled.
Burner as claimed in one of the preceding claims, wherein the Venturi tube (11) or the Venturi nozzle (112) consists at least partially of a ceramic material.
Venturi nozzle (112) for atomization of liquid fuel for combustion of the fuel in the presence of combustion air in the combustion chamber (110) of a burner, especially a burner for auxiliary motor vehicle heating, wherein it is axially divided into a fuel/combustion air discharge part (118) and a fuel/combustion air supply part (119) and wherein the two Venturi nozzle parts (118, 119) are heat insulated against one another.
Venturi nozzle as claimed in one of the preceding claims, wherein at least the discharge part (118) consists of ceramic material.
Dependencies are inferred from the claim text.