Other

Institut Francais Du Pe'trole

G&eacute;rard Schott

Guy Grienche

Jean-Herv&eacute; Le Gal

G&eacute;rard Henri Martin

Patrick Flament

Patrice Laborde

Rapha&euml;l Spagna

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&prime;) 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&deg; and 60&deg; 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.

Combustion chamber of a gas turbine working on liquid fuel

The present invention relates to a gas-turbine combustion chamber comprising at least a zone (,) referred to as pilot combustion zone into which at least a first pilot fuel injection means (,) and an associated first oxidizer injection means (,) open; a main combustion zone (,) into which at least a second main fuel injection means (,) and an associated second oxidizer injection means (,) open, all of it being maintained under a pressure P,inside an enclosure (,). According to the invention, said chamber further comprises a mechanical means (,) for controlling the second flow of oxidizer, which reacts to the pressure difference between the inside (P,) and the atmospheric pressure (Po) outside enclosure (,), said pressure difference being directly linked with the engine speed.

Variable-throat gas-turbine combustion chamber

Growing community of inventors

Rontignon, France

Gérard Schott

Growing community of inventors

Rontignon, France

G&eacute;rard Schott

Gérard Schott