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. 06, 2019
Filed:
Mar. 20, 2015
Applicant:
Safran Helicopter Engines, Bordes, FR;
Inventors:
Assignee:
SAFRAN HELICOPTER ENGINES, Bordes, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02C 7/268 (2006.01); F02C 9/16 (2006.01); F02C 3/10 (2006.01); F02C 3/113 (2006.01); B64C 27/04 (2006.01); B64D 27/14 (2006.01); F02C 3/04 (2006.01);
U.S. Cl.
CPC ...
F02C 9/16 (2013.01); B64C 27/04 (2013.01); B64D 27/14 (2013.01); F02C 3/04 (2013.01); F02C 3/10 (2013.01); F02C 3/113 (2013.01); F02C 7/268 (2013.01); F05D 2220/329 (2013.01); F05D 2270/023 (2013.01); F05D 2270/304 (2013.01); Y02T 50/671 (2013.01);
Abstract
The invention relates to a turboshaft engine comprising a gas generator () that is capable of being rotated, and a free turbine () that is rotated by the gases of said gas generator (), characterized in that it comprises a device () for spontaneously mechanically coupling said gas generator () and said free turbine () that is capable of mechanically and spontaneously connecting said gas generator () and said free turbine () as soon as the ratio of the rotational speed (NGG) of said gas generator to the rotational speed (NTL) of said free turbine reaches a predetermined threshold value.