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:
Sep. 12, 2017
Filed:
Jun. 17, 2011
Olivier Stephane Domercq, Brie Comte Robert, FR;
Vincent Paul Gabriel Perrot, Maisons Alfort, FR;
Hanna Reiss, Pontault-Combault, FR;
Jean-francois Rios, Nandy, FR;
Olivier Stephane Domercq, Brie Comte Robert, FR;
Vincent Paul Gabriel Perrot, Maisons Alfort, FR;
Hanna Reiss, Pontault-Combault, FR;
Jean-Francois Rios, Nandy, FR;
SNECMA, Paris, FR;
Abstract
A turbine engine has at least two successive annular rows of stationary vanes, e.g. formed by the vanes of a nozzle and by an annular row of casing arms arranged downstream from the nozzle Each casing arm extends substantially in a radial plane passing between the trailing edges of two adjacent stationary vanes of the nozzle, and the pitch between these two stationary vanes is greater than the pitch between the other stationary vanes of the nozzle, in such a manner that the wakes formed at the trailing edges of these two stationary vanes pass respectively on either side of the corresponding casing arm.