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:
May. 21, 2002
Filed:
Jun. 05, 2000
Applicant:
Inventors:
Pascal Gérard Gervais, Melun, FR;
Pascal Michel Daniel Lejeune, Avon, FR;
Carmen Miraucourt, Brie Comte Robert, FR;
Jacky Serge Naudet, Bondoufle, FR;
Patrice Suet, Montgeron, FR;
Monique Andrée Thore, Crosne, FR;
Assignee:
Snecma Moteurs, Paris, FR;
Primary Examiner:
Int. Cl.
CPC ...
F01D 2/514 ;
U.S. Cl.
CPC ...
F01D 2/514 ;
Abstract
A stator suitable for high-pressure compressors in gas turbine engines includes two points of ventilation at different temperatures. It is recommended that the upstream section of the stator be constructed with a casing and a shroud, both of which are unbroken around a circumference and made of a material with a low degree of thermal expansion. Downstream the shroud is, however, constructed using angular sectors in a material with a higher degree of thermal expansion.