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. 09, 2019
Filed:
Dec. 16, 2014
Safran Aircraft Engines, Paris, FR;
Benjamin Lukowski, Moissy-Cramayel, FR;
Esteban Bernardos-Chamagne, Moissy-Cramayel, FR;
Matthieu Jean Luc Vollebregt, Moissy-Cramayel, FR;
SAFRAN AIRCRAFT ENGINES, Paris, FR;
Abstract
The present invention relates to a turbomachine component () or collection of components comprising at least a first and a second blade (I,E) and a platform () from which the blades (I,E) extend, characterized in that the platform () has a non-axisymmetric surface (S) bounded by a first and a second end plane (PS, PR) and defined by at least two class C construction curves each one representing the value of a radius of said surface (S) as a function of a position between the pressure face of the first blade (I) and the suction face of the second blade (E) in a plane substantially parallel to the end planes (PS, PR), these including at least one upstream curve and one downstream curve; each construction curve being defined by at least one pressure face control end point and one suction face control end point such that: —the tangent to the downstream curve at the suction face control end pointis inclined by at most 5°; —any other tangent to a construction curve at a control end point is inclined by at least 5°.