Patent · US Expired

Burner poor in nitrogen oxide

US5370526A · kind A · utility

24Cited by

5References

37Claims

0Family size

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 19, 1994
Grant date	Dec 6, 1994
Priority date	—
Expiry date	Jan 19, 2014

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF23C2202/50
WIPO fieldThermal processes and apparatus
WIPO sectorMechanical engineering

Abstract

In order to improve a burner for generating hot gas having a burner pipe, comprising a support pipe followed by a flame pipe, a nozzle arranged in the support pipe, a fuel jet exiting from the nozzle, a shield separating a precombustion chamber and a combustion chamber from one another in the burner pipe, the shield having a central passage penetrated by the fuel jet, recirculation openings arranged in the flame pipe and allowing an outer recirculation of cooled flue gas and an element for suppressing the outer recirculation during a starting phase of the burner, such that a reliable suppression of the outer recirculation during the starting phase is possible it is suggested that the element for suppressing the outer recirculation be arranged within the burner pipe and be controllable via a control means guided through an interior of the support pipe.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.