Burner units for fluid fuels
OwnerRobert von Linde, Joachim VON Linde +1inventors
InventorsRobert von Linde, Joachim VON Linde, German Kurz
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Abstract
Burner units for fluid fuels such as oil or gas include a combustion chamber, a prechamber, means to enable combustion gases to recirculate from the combustion chamber to the prechamber, a mixing chamber in communication with the prechamber and the combustion chamber, a fuel nozzle for distributing fuel into the recirculated combustion gases and means including an air nozzle for supplying combustion air to the mixture of fuel and combustion gases whereby the energy of the air jet emerging from the air nozzle forms at least partially the means for recirculating the combustion gases.
Claims11
A burner unit comprising combustion chamber means, prechamber means, means to enable combustion gases to recirculate from said combustion chamber means into said prechamber means, mixing chamber means in communication with said prechamber means and said combustion chamber means, a fuel supply nozzle for distributing fuel into said recirculated combustion gases, said fuel nozzle being associated with control means for varying the fuel supplied thereto, and means including an air nozzle for supplying air to the mixture of fuel and combustion gases, with the energy of the air jet emerging from the air nozzle forming at least partially the means for recirculating the combustion gases, wherein the means for supplying air include means for supplying a variable volume of air under pressure to said air nozzle and means for varying the cross-sectional area of said air nozzle in dependence on the volume of air passing therethrough such that the cross-sectional area of the air nozzle decreases when the volume of air decreases.
Dependencies are inferred from the claim text.