Inline propeller gearbox brake
US10287977B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 16, 2016 |
| Grant date | May 14, 2019 |
| Priority date | — |
| Expiry date | Jul 3, 2037 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H1/28
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An in-line propeller gearbox of a turboprop gas turbine engine includes an epicyclic gearing arrangement that has a sun gear, a ring gear and at least one planet gear disposed between and meshing with both the sun gear and the ring gear. The propeller gearbox includes a disk brake that can be operated to slow down or stop altogether the rotation of the propeller. The disk brake has an axially extending shaft having at one end a disk and at the opposite end a gear having teeth that engage with one of the gears in the epicyclic gearing arrangement. The disk brake includes a hydraulic caliper or an electric caliper that can be actuated to slow down rotation of the disk to an eventual full stop and to hold the disk at full stop to thereby stop rotation of the propeller.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.