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.

Date of Patent:
Dec. 26, 2023

Filed:

Oct. 14, 2020
Applicant:

Safran Helicopter Engines, Bordes, FR;

Inventors:

Olivier Bedrine, Moissy-Cramayel, FR;

Jean Michel Frédéric Louis Bazet, Moissy-Cramayel, FR;

David Cazaux, Moissy-Cramayel, FR;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01D 21/12 (2006.01); F02C 7/25 (2006.01);
U.S. Cl.
CPC ...
F01D 21/12 (2013.01); F02C 7/25 (2013.01); F05D 2220/329 (2013.01); F05D 2270/09 (2013.01);
Abstract

A method for quickly stopping the propulsion rotor of a helicopter after landing, comprising, following a request for quickly stopping the engine by a helicopter pilot, the following steps managed by the control unit of the turbomachine: Detecting the absence of the thermal stabilization phase of the gas generator of at least one turbomachine, controlling an extinction of the combustion chamber of the gas generator of at least one turbomachine, maintaining the rotation of the gas generator of which the combustion chamber is extinguished by means of said at least one electrical machine to ventilate the gas generator and stopping the main rotor of the helicopter by means of a mechanical brake.


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