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:
Apr. 30, 2002
Filed:
Jan. 28, 1999
Jean-Hervé Le Gal, Paris, FR;
Patrick Flament, Auffargis, FR;
Gérard Martin, St Genis-Laval, FR;
Guy Grienche, Coarraze, FR;
Gérard Schott, Rontignon, FR;
Institut Francais du Petrole, Rueil-Malmaison cedex, FR;
Abstract
A combustion chamber of a gas turbine working on liquid fuel includes a tubular enclosure ( ) having at least one pressurized air inlet, a liquid fuel injection means ( ) positioned on or in proximity to the longitudinal axis (XX′) of the tubular enclosure, and an outlet to the turbine. The fuel injection means ( ) includes a series of orifices ( ) arranged so as to create separate fuel jets, the jets being arranged in the direction of the generatrices of a cone with an angle ranging between 30° and 60° at the vertex thereof. The chamber includes at least two types of pressurized air inlets placed close to each other, the first one ( ) taking in the air helically around the longitudinal axis of the combustion chamber, the second air inlet ( ) being tangential to enclosure ( ) so as to create, around the fuel jets, counterrotating flows intended to improve mixing of the air and of said fuel. The assembly preferably works at a pressure ranging between 2 and 30 bars and with a fuel/air ratio ranging between 0.4 and 0.8.