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. 28, 2019
Filed:
Aug. 04, 2014
Snecma, Paris, FR;
Damien Joseph Cellier, Paris, FR;
Alicia Lise Julia Dufresne, Paris, FR;
Philippe Pierre Marcel Marie Pelletrau, Vaux-le-Penil, FR;
Vincent Paul Gabriel Perrot, Maisons Alfort, FR;
Laurent Christophe Francis Villaines, Vaux le Penil, FR;
SAFRAN AIRCARFT ENGINES, Paris, FR;
Abstract
A turbine engine rotor blade including an airfoil defined by plane airfoil sections stacked in a radial direction, each airfoil section being positioned radially at a height H, where height H is expressed as a percentage of the total height of the airfoil, and being identified by its sweep angle λ and its dihedral angle ν, wherein the sweep angle λ varies as a function of height H in such a manner that the sweep angle λ reaches a maximum at a height HλM, the value HλM lying in the range 5% to 40%, and the sweep angle λ increases from 0% to HλM, and wherein the dihedral angle ν varies as a function of H, the dihedral angle ν being a decreasing function of height H for heights H lying in the range 0% to Hν, Hνlying in the range 10% to 40%.