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:
Feb. 26, 2019
Filed:
Mar. 20, 2015
Safran Helicopter Engines, Bordes, FR;
SAFRAN HELICOPTER ENGINES, Bordes, FR;
Abstract
The invention relates to an architecture of a propulsion system of a multi-engine helicopter, comprising turboshaft engines () that are connected to a power transmission gearbox (), and comprising a low DC voltage onboard network () for supplying helicopter equipment during flight, characterized in that it comprises: a hybrid turboshaft engine () that is capable of operating in at least one standby mode during a stable flight of the helicopter; an electrotechnical pack () for quickly restarting said hybrid turboshaft engine in order to bring said engine out of said standby mode and to reach a mode in which it provides mechanical power, said restart pack () being connected to said onboard network (); and at least two sources () of electrical power for said onboard network ().