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:
Oct. 20, 2020
Filed:
Nov. 30, 2017
Applicant:
Safran Aircraft Engines, Paris, FR;
Inventor:
Bellal Waissi, Vert Saint Denis, FR;
Assignee:
SAFRAN AIRCRAFT ENGINES, Paris, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02C 9/46 (2006.01); F02C 7/06 (2006.01); F01D 25/20 (2006.01); F02C 7/232 (2006.01);
U.S. Cl.
CPC ...
F02C 9/46 (2013.01); F01D 25/20 (2013.01); F02C 7/06 (2013.01); F02C 7/232 (2013.01); F05D 2240/35 (2013.01); F05D 2270/09 (2013.01); F05D 2270/301 (2013.01); F05D 2270/304 (2013.01); Y02T 50/671 (2013.01);
Abstract
The invention relates to a lubrication system for turbomachine. The hydromechanical cutoff device is configured to close when a rotation speed of a turbomachine shaft reduces and becomes lower than a first threshold, and wherein the hydromechanical cutoff device is configured to open when the rotation speed of the shaft increases and becomes higher than a second threshold higher than the first threshold.