Pitch control mechanism
US8757976B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 14, 2011 |
| Grant date | Jun 24, 2014 |
| Priority date | — |
| Expiry date | Dec 10, 2032 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB64D27/026
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A pitch control mechanism is provided for angular displacement of propellers of a propeller assembly of an engine arrangement. The pitch control mechanism has an epicyclic gear system rotating with the propeller assembly. The pitch control mechanism further has a drive gear controlling the rotational speed of the first epicyclic input in the rotating frame of reference of the propeller assembly, a control gear controlling the rotational speed of the second epicyclic input in the rotating frame of reference of the propeller assembly, and a drive mechanism rotating with the propeller assembly. The drive mechanism accepts rotary motion from the epicyclic output to deliver an output motion which angularly displaces the propellers of the propeller assembly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.