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:
Nov. 27, 2012
Filed:
Nov. 02, 2007
Beatrice Nathalie Bois, Evry Gregy sur Yerres, FR;
Alain Paul Madec, Chartrettes, FR;
Amadou Lamine M'bengue, Vert Saint Denis, FR;
Beatrice Nathalie Bois, Evry Gregy sur Yerres, FR;
Alain Paul Madec, Chartrettes, FR;
Amadou Lamine M'Bengue, Vert Saint Denis, FR;
SNECMA, Paris, FR;
Abstract
A turbomachine blade including a plurality of blade sections stacked along a radial axis is disclosed. The projection of a line interconnecting the leading edges of the blade sections of the bottom stack onto a mid-plane presents a first longitudinal angle of inclination towards the leading edge that lies in the range 10° to 25°. The projection of a line interconnecting the leading edges of the blade sections of the intermediate stack presents a second longitudinal angle of inclination towards the trailing edge lying in the range 10° to 25°. The projection of a line interconnecting the leading edges of the blade sections of the top stack presents a third longitudinal angle of inclination towards the trailing edge lying in the range 20° to 50°. The bottom limit of the intermediate stack of the blade sections lies in the range 30% to 40% of the total radial height of the stack of blade sections.