Sliding nozzle flap assembly
US10302041B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 9, 2016 |
| Grant date | May 28, 2019 |
| Priority date | — |
| Expiry date | Aug 11, 2037 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2260/50
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Tracks (35), fastened to static structure of an aircraft engine nozzle, guide sliders (32) journaled in struts (27, 28) fastened to a flap (23) of the nozzle. Each slider and attached journal axle or bolt (33) is formed of cobalt, and each track slider surface (61) and journal bushings (43, 44) are formed of a nickel alloy to reduce wear from rubbing. Track slides (40, 41) are mounted to the static structure of the nozzle by blind bolts (68) having a tool recess (70) at its threaded tip to prevent the bolt (68) from turning as a nut is secured. Each slider has limited rotation due to a pin (102), thereon engaging a slot in a tab (100) of the bushing (43) to assist in inserting the slider (32) into the beveled ends of the tracks (35, 36), when mounting or replacing a flap.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.