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:
Aug. 27, 2019
Filed:
Jul. 03, 2017
Applicant:
Safran Aircraft Engines, Paris, FR;
Inventors:
Olivier Bazot, Melun, FR;
Jérémy Philippe Pierre Edynak, Viry-Chatillon, FR;
Assignee:
SAFRAN AIRCRAFT ENGINES, Paris, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01D 17/16 (2006.01); F04D 29/56 (2006.01); F04D 29/02 (2006.01); F04D 29/64 (2006.01);
U.S. Cl.
CPC ...
F04D 29/563 (2013.01); F01D 17/162 (2013.01); F04D 29/023 (2013.01); F04D 29/644 (2013.01); F05D 2220/323 (2013.01); F05D 2230/54 (2013.01); F05D 2230/80 (2013.01); F05D 2300/611 (2013.01); Y02T 50/672 (2013.01);
Abstract
A flexible metal foil can be fixed on the inside part of a variable pitch vane control ring of a turbojet compressor, so as to close all through holes in which lever pins and their surrounding bushes are housed. As a result, the foil can retain the shank of the bush if the bush breaks. The use of such foil does not impose the development of a new model of control ring and its impact on the mass is small enough so that it does not affect engine performances. Therefore it avoids problems related to the breakage of bushes without having to make major changes to the existing system.