Driveshaft for the gearbox of auxiliary machines of a turbojet engine

US9796264B2 · kind B2 · utility

Assignee

• SNECMA · FR

Inventors

• Michel Gilbert Roland Brault · Épinay-sous-Sénart, FR
• Regis Eugene Henri Servant · Moissy-Cramayel, FR

Key dates

• Filing date: Feb 17, 2012
• Grant date: Oct 24, 2017
• Expiry date: Aug 19, 2034

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F05D2220/50
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A turbojet engine including an intermediate casing including radial arms and a driveshaft for a gearbox for auxiliary machines of the turbojet engine, the driveshaft mounted in a radial arm, the radial arm including an intermediate bearing supporting the driveshaft, the intermediate bearing including plural rolling bearings supporting the driveshaft, the driveshaft including a first shaft element connected at one end to a mechanism providing mechanical transmission to an engine shaft of the turbojet engine, and a second shaft element connected at one end to a mechanism providing mechanical transmission to the box. The first shaft element and the second shaft element are linked by a connection including plural splines. A single plane transversely passes through the plural splines and the plural rolling bearings.