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. 18, 2014
Filed:
Sep. 11, 2009
Gilles Alain Charier, La Grande Paroisse, FR;
Gerard Philippe Gauthier, Champagne sur Seine, FR;
Laurent Gille, Dammarie les Lys, FR;
Serge Rene Morreale, Guignes, FR;
Gilles Alain Charier, La Grande Paroisse, FR;
Gerard Philippe Gauthier, Champagne sur Seine, FR;
Laurent Gille, Dammarie les Lys, FR;
Serge Rene Morreale, Guignes, FR;
SNECMA, Paris, FR;
Abstract
A method and a system for lubricating a turbine engine including at least three separate housings each including at least one roller bearing. The method pressurizes the housings through seals, of which two main housings are pressurized at a pressure higher than that of a remaining secondary housing, lubricates a secondary roller bearing only by injecting an oil mist from at least one of the main housings, the oil mist being supplied by a pressure difference between the main housings and the secondary housing, recovers a remainder of the lubrication oil injected into the main housings to supply the same to an oil tank, and supplies the air/oil mixture from the secondary housing to an oil separator.