Intellectual Property India Publishes Patent Application for 'Assembly For An Aircraft Propulsion Assembly With Disengageable Coupling Of Two Shafts By A Coupling Sleeve With Pressurized-Fluid Actuation' Filed by Safran Helicopter Engines

MUMBAI, India, Sept. 12 -- Intellectual Property India has published a patent application (202517070639 A) filed by Safran Helicopter Engines, Bordes, France, on July 24, for 'assembly for an aircraft propulsion assembly with disengageable coupling of two shafts by a coupling sleeve with pressurized-fluid actuation.'

Inventor(s) include Vive, Lois Pierre Denis; Apostin, Lucie Stephanie; Sarrat, Christian Omer Henri; and Jousselin, Samuel Christian.

The application for the patent was published on Sept. 12, under issue no. 37/2025.

According to the abstract released by the Intellectual Property India: "A disengageable coupling assembly (2) for an aircraft propulsion assembly (1) comprises a first shaft (4) and a second shaft (6); a coupling sleeve (8) movable between positions of coupling and of uncoupling the shafts; fluid chambers defined between the coupling sleeve and the shafts; a tube (10) extending into a bore of the coupling sleeve; and means (12) for selectively supplying a first selection of the chamber(s) (39, 52, 62) and a second selection of the chamber(s) (64) with a fluid (F), via the tube (10). When the coupling sleeve is in the coupling position, a pressure of the fluid in the first selection of chamber(s) applies to the coupling sleeve a first axial force (F1) that maintains the coupling. A pressure of the fluid (F) in the second selection of chamber(s) applies to the coupling sleeve a second axial force (F2) that brings the sleeve into the uncoupling position."

The patent application was internationally filed on Jan. 26, 2024, under International application No.PCT/FR2024/050111.

Disclaimer: Curated by HT Syndication.