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:
Nov. 02, 2021
Filed:
Oct. 06, 2015
Safran Helicopter Engines, Bordes, FR;
Safran Electrical & Power, Blagnac, FR;
SAFRAN HELICOPTER ENGINES, Bordes, FR;
SAFRAN ELECTRICAL & POWER, Blagnac, FR;
Abstract
The invention relates to an architecture of a propulsion system of a multi-engine helicopter comprising turboshaft engines connected to a power transmission gearbox, characterised in that it comprises: at least one hybrid turboshaft engine () capable of operating in at least one standby mode during a stable cruise flight of the helicopter; at least two systems () for controlling each hybrid turboshaft engine (), each system () comprising an electric machine () connected to the hybrid turboshaft engine () and suitable for rotating the gas generator thereof, and at least one source () of electrical power for said electric machine (), each reactivation system () being configured such that it can drive said turboshaft engine () in at least one operating mode among a plurality of predetermined modes.