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:
Jul. 25, 2006
Filed:
Jun. 15, 2004
Claude Lejars, Draveil, FR;
Patrick Reghezza, Vaux le Penil, FR;
Jerome Mace, Melun, FR;
Christophe Follonier, Saint Fargeau Ponthierry, FR;
Bruce Pontoizeau, Paris, FR;
Claude Lejars, Draveil, FR;
Patrick Reghezza, Vaux le Penil, FR;
Jerome Mace, Melun, FR;
Christophe Follonier, Saint Fargeau Ponthierry, FR;
Bruce Pontoizeau, Paris, FR;
SNECMA Moteurs, Paris, FR;
Abstract
The invention relates to a bladed disk for a turbomachine, the disk including blades which extend into a conical stream and which are held in a peripheral groove of said disk by hammerhead type fasteners, each of said blades further including a platform whose radially-outer face defines the boundary of the gas flow stream and whose radially-inner face presents an upstream rib and a downstream rib disposed in planes that are perpendicular to the axis of rotation of said disk and that are radially adjacent respectively to an upstream ring and a downstream ring formed at the periphery of said disk on either side of said groove in order to provide leaktightness in these zones, wherein the thickness of the downstream rib in the axial direction is greater than the thickness of the upstream ring.