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. 17, 2012
Filed:
Jan. 09, 2009
Aurelien Rene-pierre Massot, Vaux le Penil, FR;
Philippe Jean-pierre Pabion, Vaux le Penil, FR;
Sebastien Jean Laurent Prestel, Arpajon, FR;
Jean-luc Soupizon, Vaux le Penil, FR;
Aurelien Rene-Pierre Massot, Vaux le Penil, FR;
Philippe Jean-Pierre Pabion, Vaux le Penil, FR;
Sebastien Jean Laurent Prestel, Arpajon, FR;
Jean-Luc Soupizon, Vaux le Penil, FR;
SNECMA, Paris, FR;
Abstract
The present invention relates to a two-spool gas turbine engine including an HP turbine stator ring and an exterior wall of the transition channel between the HP and LP stages, a first enclosure for controlling the stator ring, and a second enclosure for distributing air for blowing the exterior wall of the transition channel. The engine is characterized in that the two enclosures are placed in communication via an orifice controlled by a valve adapted to be open when the pressure Pin the first enclosure is greater than the pressure Pin the second enclosure, and closed when P<P