Self-adjusting variable pitch propeller
US12103656B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 28, 2022 |
| Grant date | Oct 1, 2024 |
| Priority date | — |
| Expiry date | Jun 28, 2042 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB63H20/245
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A self-adjusting variable pitch propeller included a central hub with an axial propeller centre line defining the rotational axis of the propeller. A plurality of blades extend radially from the hub. The hub exhibits a central bore arranged to receive a rotating drive shaft. Each blade is pivotally fixed to the hub and pivotal about a respective blade pivot axis which extends radially from the hub through the respective blade. Each blade exhibits a leading edge, a trailing edge, a pressure side exhibiting a pressure side area and a suction side exhibiting a suction side area. The blades are mechanically interconnected to freely transfer pivotal movement of each blade to all other blades. The pivotal axis of each blade is positioned such that >50% of the suction side area and of the pressure side area is arranged between the trailing edge and the pivotal axis of the respective blade.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.