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:
Jul. 31, 2018
Filed:
Mar. 14, 2014
Snecma, Paris, FR;
Office National D'etudes ET DE Recherches Aerospatiales, Chatillon, FR;
Matthieu Francois Rullaud, Champagne sur Seine, FR;
Didier Hernandez, Quiers, FR;
Christian Guin, Villebon sur Yvette, FR;
SNECMA, Paris, FR;
OFFICE NATIONAL D'ETUDES ET DE RECHERCHES AEROSPATIALES, Chatillon, FR;
Abstract
An air and fuel injection system for a turbine engine combustion chamber dome, including at least two fuel injection devices including a central injector and a peripheral annular injector arranged around the central injector, and an inner annular air inlet channel into which the central injector opens up to enable mixing between the fuel from the central injector and the air inlet into the inner annular channel, and at least one outer annular air inlet channel to enable enrichment of this mix with air and to stabilize the pilot combustion zone, wherein the inner annular channel and at least one outer annular channel are separated by an intermediate annular wall extending around the central injector and having a convergent inner profile.