The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 11, 1997
Filed:
Apr. 24, 1995
Rolf Althaus, Kobe, JP;
ABB Management AG, Baden, CH;
Abstract
A method and apparatus for operating a combustion chamber for autoignition of a fuel includes spraying fuel into a hot gas through a plurality of fuel lances disposed in a mixing zone of a combustion chamber for autoignition of the fuel. The fuel lances are supplied with fuel as two individually supplied groups. Fuel is supplied first to a first group of lances and increased to reach an intermediate operating temperature of about 1100.degree. C. The fuel supply to the second group is then activated, and the fuel supply increased to reach the same intermediate operating temperature with the second group. After both groups are operating at the intermediate temperature, the fuel supply to both groups is simultaneously increased to reach the operating temperature of the combustion chamber.