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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.:

US 10934889 B1

PDFFull Text
Date of Patent:
Mar. 02, 2021

Filed:

Nov. 18, 2016

System and method for supplying lubrication fluid to at least one member of an aircraft propulsion assembly

Applicant:

Safran Aircraft Engines, Paris, FR;

Inventor:

Sebastien Christophe Chalaud, Vincennes, FR;

Assignee:

SAFRAN AIRCRAFT ENGINES, Paris, FR;

Attorney:

Oblon, McClelland, Maier & Neustadt, L.L.P.

Primary Examiner:

Michael R Mansen

Assistant Examiner:

Robert T Reese

Int. Cl.
CPC ...
F01D 25/20 (2006.01); F16H 57/04 (2010.01); F16N 7/38 (2006.01); F16N 13/22 (2006.01); F16N 13/20 (2006.01); F16N 25/00 (2006.01); F16N 19/00 (2006.01); F16N 27/00 (2006.01); F02C 7/36 (2006.01);
U.S. Cl.
CPC ...
F01D 25/20 (2013.01); F02C 7/36 (2013.01); F16H 57/0435 (2013.01); F16H 57/0436 (2013.01); F16H 57/0441 (2013.01); F16H 57/0475 (2013.01); F16N 7/38 (2013.01); F16N 13/20 (2013.01); F16N 13/22 (2013.01); F16N 19/00 (2013.01); F16N 25/00 (2013.01); F16N 27/00 (2013.01); F05D 2260/40 (2013.01); F05D 2260/4031 (2013.01); F05D 2260/98 (2013.01); F05D 2270/20 (2013.01); F16N 2210/02 (2013.01); F16N 2210/08 (2013.01); F16N 2210/12 (2013.01); F16N 2250/08 (2013.01); F16N 2250/40 (2013.01); F16N 2270/70 (2013.01); Y02T 50/60 (2013.01);
Abstract

A feed system for feeding lubricating oil to members of a turbine engine including a reduction gearbox, the feed system including a nonpositive-displacement pump device for connecting upstream to an oil tank and driven in rotation at a speed that is not correlated with an operating speed of the turbine engine; a separator node connected to the outlet of the nonpositive-displacement pump device; a first delivery branch for lubricating the RGB connected to the nonpositive-displacement pump device via the separator node; a second delivery branch for lubricating other members connected to the nonpositive-displacement pump device via the separator node, the second delivery branch including a positive-displacement pump; and at least one fluid metering device having a metering slot fed by the nonpositive-displacement pump device via the separator node for the purpose of feeding the RGB.

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