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:
Oct. 25, 2016
Filed:
Feb. 02, 2012
Christophe Javelot, Vitry sur Seine, FR;
Damien Bonneau, Melun, FR;
Bruno Robert Gaully, Marolles en Hurepoix, FR;
Amaury Olivier, Boulogne-Billancourt, FR;
Christophe Javelot, Vitry sur Seine, FR;
Damien Bonneau, Melun, FR;
Bruno Robert Gaully, Marolles en Hurepoix, FR;
Amaury Olivier, Boulogne-Billancourt, FR;
SNECMA, Paris, FR;
Abstract
A method controlling a clearance between tips of blades of a turbine rotor of a gas turbine aircraft engine and a ring-shaped turbine shroud of a housing surrounding the blades, the method including: controlling flow and/or temperature of air directed toward the housing according to an estimate of the clearance, the estimate of the clearance is determined upon start-up of the aircraft engine, according to a temperature measured by a temperature sensor including a sensitive element positioned in a free space of the aircraft engine.