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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 9828917 B1

PDFFull Text
Date of Patent:
Nov. 28, 2017

Filed:

Jul. 31, 2015

Rapid assistance device for a free turbine engine of an aircraft

Applicants:

Safran Helicopter Engines, Bordes, FR;

Safran Electronics & Defense, Boulogne-Billancourt, FR;

Safran Electrical & Power, Blagnac, FR;

Inventors:

Thomas Klonowski, Sedzere, FR;

Michel Nollet, Boulogne Billancourt, FR;

Frederic Pailhoux, Saint-Mammes, FR;

Assignees:

SAFRAN HELICOPTER ENGINES, Bordes, FR;

SAFRAN ELECTRONICS & DEFENSE, Boulogne-Billancourt, FR;

SAFRAN ELECTRICAL & POWER, Blagnac, FR;

Attorney:

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

Primary Examiner:

Fritz M Fleming

Int. Cl.
CPC ...
F02C 7/26 (2006.01); F02C 7/268 (2006.01); F02C 7/32 (2006.01); F01D 15/10 (2006.01); F02C 3/10 (2006.01); F02C 6/14 (2006.01); H01M 10/42 (2006.01); H01M 10/04 (2006.01); H01M 10/625 (2014.01); H01G 11/78 (2013.01); H01G 11/08 (2013.01); H01G 11/14 (2013.01);
U.S. Cl.
CPC ...
F02C 7/268 (2013.01); F01D 15/10 (2013.01); F02C 3/10 (2013.01); F02C 6/14 (2013.01); F02C 7/32 (2013.01); H01G 11/08 (2013.01); H01G 11/14 (2013.01); H01G 11/78 (2013.01); H01M 10/04 (2013.01); H01M 10/425 (2013.01); H01M 10/625 (2015.04); F05D 2220/32 (2013.01); F05D 2270/09 (2013.01); H01M 2010/4271 (2013.01); H01M 2220/20 (2013.01);
Abstract

The rapid assistance device applies to a free turbine engine of an aircraft having at least a first free turbine engine provided with a gas generator and associated with an electrical machine capable of operating both as a starter and as a generator, the first engine being capable of being put into a standby mode or into an unwanted shut-down mode, the electrical machine being powered from on on-board electrical energy power supply network. The device further includes at least one electrical energy storage member adapted to be electrically connected to the electrical machine associated with the first engine in order to provide a burst of assistance to the gas generator of that engine. The electrical energy storage member constitutes a non-rechargeable 'primary' energy storage member that can be used once only. The device includes a system for activating the electrical energy storage member and a device for coupling the electrical energy storage member with an electrical power supply system of the electrical machine.

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