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. 19, 2022
Filed:
Jun. 07, 2019
Safran Helicopter Engines, Bordes, FR;
Olivier Audrey David Lafargue, Moissy-Cramayel, FR;
Thomas Klonowski, Moissy-Cramayel, FR;
Antoine Pascal Moutaux, Moissy-Cramayel, FR;
SAFRAN HELICOPTER ENGINES, Bordes, FR;
Abstract
The invention relates to an aircraft propulsion system, comprising a main transmission unit () and at least two turbojet engines connected to the main transmission unit (), respectively a first turbojet engine () and a second turbojet engine (), each turbojet engine comprising a free turbine (), characterized in that the first turbojet engine () comprises a heat exchanger () configured to recover some of the thermal energy from the exhaust gas at the outlet of the free turbine, and in that the propulsion system comprises at least one computer () configured to control the two turbojet engines and to limit the acceleration and the deceleration of the first turbojet engine () when neither of the turbojet engines is broken down, in order to limit the reactor power transients at the heat exchanger ().