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:
Jul. 02, 2019
Filed:
Mar. 20, 2015
Safran Helicopter Engines, Bordes, FR;
Olivier Bedrine, Bosdarros, FR;
Olivier Pierre Descubes, Nay, FR;
SAFRAN HELICOPTER ENGINES, Bordes, FR;
Abstract
The invention relates to an architecture of a propulsion system of a multiple-engine helicopter comprising turboshaft engines (), characterised in that it comprises: at least one hybrid turboshaft engine () that is capable of operating in at least one standby mode during a stable flight of the helicopter, the other turboshaft engines () operating alone during this stable flight; an air turbine () that is mechanically connected to the gas generator () of the hybrid turboshaft engine () and is suitable for rotating said gas generator (); means for withdrawing pressurised air from the gas generator () of a running turboshaft engine (); and a duct () for routing this withdrawn air to said air turbine ().