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.

Date of Patent:
Jul. 16, 2019

Filed:

Oct. 10, 2014
Applicant:

Safran Aircraft Engines, Paris, FR;

Inventor:

Damien Joseph Cellier, Moissy-Cramayel, FR;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01D 5/14 (2006.01); F04D 29/32 (2006.01); F04D 29/52 (2006.01); F04D 29/54 (2006.01); F04D 29/68 (2006.01);
U.S. Cl.
CPC ...
F04D 29/322 (2013.01); F01D 5/143 (2013.01); F04D 29/321 (2013.01); F04D 29/324 (2013.01); F04D 29/329 (2013.01); F04D 29/522 (2013.01); F04D 29/542 (2013.01); F04D 29/544 (2013.01); F04D 29/681 (2013.01); F05B 2240/80 (2013.01); F05B 2250/71 (2013.01); F05D 2220/30 (2013.01); F05D 2230/50 (2013.01); F05D 2240/80 (2013.01); F05D 2250/71 (2013.01);
Abstract

A turbomachine part including at least first and second blades, and a platform from which the blades extend, wherein the platform has a non-axisymmetric surface limited by first and second end planes, and defined by at least three construction curves of class CI each representing the value of a radius of the surface on the basis of a position between the lower surface of the first blade and the upper surface of the second blade according to a plane substantially parallel to the end planes, including a first curve that increases in the vicinity of the second blade; a second curve that decreases in the vicinity of the second blade; a third curve having a minimum at the second blade.


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