Propeller blade pitch angle feedback from actuator rotation
US11479339B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 2, 2020 |
| Grant date | Oct 25, 2022 |
| Priority date | — |
| Expiry date | Dec 20, 2040 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB64C11/38
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A propeller control system for controlling a blade pitch angle including: a propeller blade extending from a blade base, the propeller blade being configured to rotate around a longitudinal axis to generate thrust for the propeller blade and rotate around a pitch change axis to adjust the blade pitch angle, wherein the pitch change axis extends through a center point of the blade base; a trunnion pin operably connected to the blade base at a location offset from the center point; a yoke plate operably connected to the trunnion pin; an actuator configured to move the yoke plate linearly along the longitudinal axis to rotate the trunnion pin and the propeller blade around the pitch change axis; and a transfer tube operably connected to the yoke plate, the transfer tube being free to rotate around the longitudinal axis as the actuator moves the yoke plate linearly along the longitudinal axis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.