Commonly manufactured rotor blade
US12252240B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 10, 2024 |
| Grant date | Mar 18, 2025 |
| Priority date | — |
| Expiry date | Jan 10, 2044 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB64C2027/4736
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A rotor blade configured to be installed on a rotary wing aircraft includes a spar including an inboard portion extending from a root of the rotor blade to a first spanwise position of the rotor blade and an outboard portion meeting the inboard portion at the first spanwise position. The rotor blade further includes an upper skin and a lower skin coupled the outboard portion of the spar. The first spanwise position is defined by a most inboard point at which the upper and lower skins are coupled to the spar. The inboard portion includes a top layer, a bottom layer, and an inner cavity. The top layer has a substantially constant first thickness and the bottom layer has a substantially constant second thickness, and the distance between an outer surface of the top layer and an outer surface of the bottom layer is substantially constant.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.