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:
Jan. 19, 2010
Filed:
Feb. 11, 2008
Gerard Philippe Gauthier, Champagne sur Seine, FR;
Laurent Gille, Dammarie les Lys, FR;
Serge Rene Morreale, Guignes, FR;
Jean-yves Picart, Dammarie-les-Lys, FR;
Gerard Philippe Gauthier, Champagne sur Seine, FR;
Laurent Gille, Dammarie les Lys, FR;
Serge Rene Morreale, Guignes, FR;
Jean-Yves Picart, Dammarie-les-Lys, FR;
SNECMA, Paris, FR;
Abstract
The turbojet has a bearing which supports, in rotation and in thrust, a low-pressure compressor shaft of axis Z-Z of the engine. The bearing is lubricated with oil by means of two nozzles. A feed tube is fastened to the nose cone of the engine. This tube connects the low-pressure compressor shaft to the engine nose cone. A skin lines the wall of the engine nose cone, leaving a passage for the circulation of oil. A plurality of radial oil return tubes are placed between the most eccentric part of the skin relative to the Z-Z axis and the bearing, for returning the oil to the bearing. The return of the oil into the bearing is located at a distance R from the Z-Z axis larger than the radius r of the feed tube.