MUMBAI, India, Aug. 22 -- Intellectual Property India has published a patent application (202517050267 A) filed by Safran Helicopter Engines, Bordes, France, on May 26, for 'improved hybrid turboprop engine for aircraft.'
Inventor(s) include Apostin, Lucie, Stephanie; Vive, Lois, Pierre, Denis; and Sarrat, Christian, Omer, Henri.
The application for the patent was published on Aug. 22, under issue no. 34/2025.
According to the abstract released by the Intellectual Property India: "The invention relates to a hybrid turboprop engine (100) for an aircraft, comprising: a gas generator (12) which is supported by a generator shaft (14); a free turbine (11) which is supported by a turbine shaft (13) and rotated by a gas flow generated by the gas generator (12), the turbine shaft (13) meshing with a main rotor (60) via a transmission system (50) comprising a first overrunning clutch (51) which is oriented such that the main rotor (60) cannot drive the free turbine (11); and a reversible electric machine (30) meshing with the main rotor via the transmission system (50) in order to drive the main rotor (60) during electric or hybrid operation, the turboprop engine comprising a single oil pump (40) meshing with the transmission system (50) in order to be driven selectively by the turbine shaft (13) or by the electric machine (30) according to the operating mode."
The patent application was internationally filed on Nov. 22, 2023, under International application No.PCT/FR2023/051840.
Disclaimer: Curated by HT Syndication.
