Redundant front suspension system for a turboshaft engine
US5871177A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 19, 1997 |
| Grant date | Feb 16, 1999 |
| Priority date | — |
| Expiry date | Nov 19, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB64D27/406
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A redundant front suspension system for a turboshaft engine mounted on a pylon of an aircraft comprises a primary suspension device forming the normal front suspension of the engine, and an emergency suspension device which operates in the event of failure of the normal suspension. The primary suspension device comprises a base support which is fixed to the pylon and has a suspension shaft which co-operates with the intermediate casing of the engine. Thrust take-up rods connect the intermediate casing to the base support. The emergency suspension device comprises a first support secured to the pylon and a second support secured to the intermediate casing, each of these two supports having a vertical yoke. The vertical yokes are interconnected by a transverse pin which passes through the yokes with a clearance between the pin and one of the yokes. The second support has a vertical pin which is received with clearance in a bore in a horizontal yoke of the first support, the vertical pin and the horizontal yoke taking up the transverse forces in the event of a rupture of the normal suspension shaft. The vertical yokes take up the longitudinal and vertical forces in the event of a rupt…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.