Jet engine with a variable section nozzle of which at least one flap pivots about a pin, pins for flaps
US7533533B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 28, 2005 |
| Grant date | May 19, 2009 |
| Priority date | — |
| Expiry date | May 24, 2027 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2260/30
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The jet engine of the invention comprises an exhaust nozzle of variable section, comprising at least one flap pivot mounted about a pin, the pin being joined to the fixed structure of the jet engine via two braces each comprising a bore for housing the pin, the flap being pivot commanded by an actuating cylinder, connected to two fasteners which each comprise a bore through which the pin passes and about which they rotate. The jet engine is characterized by the fact that the pin, the bores of the braces and bores of the fasteners are arranged so that the contacts between the pin with the bore walls of the braces and with the bore walls of the fasteners are made over convex surfaces. Therefore, when in operation, in the event of pin bending the contact surfaces follow this convex shape and are suitably distributed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.