Deposit-free burner

US5433601A · kind A · utility

Assignee

• Deutsche Forschungsanstalt Fur Luft-Und Raumfahrt E.V. · DE

Inventors

• Winfried Buschulte · Fürstenau, DE
• Erich Adis · Neuenstadt am Kocher, DE
• Manfred Bader · Fürstenau, DE

Key dates

• Filing date: Jan 18, 1994
• Grant date: Jul 18, 1995
• Expiry date: Jan 18, 2014

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F23D11/40
• WIPO field: Thermal processes and apparatus
• WIPO sector: Mechanical engineering

Abstract

In order to improve a burner for generating hot gas comprising a burner pipe, a nozzle arranged in the burner pipe and having an outlet in its front face, a fuel jet exiting through the outlet, a shield arranged near the nozzle for subdividing the burner pipe into a precombustion chamber located upstream and accommodating the nozzle and a combustion chamber located downstream, a central passage arranged in the shield for the fuel jet exiting from the outlet and a plurality of openings surrounding the passage in the shield, combustion air passing through the openings from the precombustion chamber into the combustion chamber such that deposits are no longer formed therein, it is suggested that an air gap is provided between the shield and the nozzle, combustion air passing through the air gap from the precombustion chamber through the passage into the combustion chamber, and that a rim of the passage is provided with a flow disruption edge for the combustion air passing through the air gap.