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:
May. 02, 2006
Filed:
Feb. 12, 2004
Jean-luc Soupizon, Vaux le Penil, FR;
Patrick Rossi, Asnieres sur Seine, FR;
Henri Popinet, Asnieres sur Seine, FR;
Sandrine Tourbier, Rueil Malmaison, FR;
Claude Bion, Saint Leu la Foret, FR;
Charles Balleron, Sartrouville, FR;
José Lopez, Cachan, FR;
Patrick Girard, Melun, FR;
Xavier Lescure, Fontainebleau, FR;
Patrice Rosset, Le Mee sur Seine, FR;
Jean-Luc Soupizon, Vaux le Penil, FR;
Patrick Rossi, Asnieres sur Seine, FR;
Henri Popinet, Asnieres sur Seine, FR;
Sandrine Tourbier, Rueil Malmaison, FR;
Claude Bion, Saint Leu la Foret, FR;
Charles Balleron, Sartrouville, FR;
José Lopez, Cachan, FR;
Patrick Girard, Melun, FR;
Xavier Lescure, Fontainebleau, FR;
Patrice Rosset, Le Mee sur Seine, FR;
Snecma Moteurs, Paris, FR;
Abstract
In a moving turbine wheel, blade inserts are used with at least two blades interconnected by common outer and inner platforms and sharing a common root. The blade inserts have hollow roots in which respective recesses are formed, and the insert roots belonging to the same wheel and/or two different wheels are voluntarily given different configurations in order to adjust the resonant frequencies of the inserts to values that are significantly different, thereby ensuring that the inserts in the same wheel and/or between two different wheels are out of tune.