Propellers for aircraft
US9527578B2 · kind B2 · utility
12Cited by
47References
17Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 26, 2011 |
| Grant date | Dec 27, 2016 |
| Priority date | — |
| Expiry date | Oct 5, 2032 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB64C11/48
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
One aspect of the present invention provides a propeller for an aircraft. The propeller comprises a propeller hub, a spinner for streamlining the propeller and a plurality of composite propeller blades mounted to the propeller hub. The propeller blades are arranged to rotate together in the same rotational direction in at least two parallel planes substantially perpendicular to an axis of rotation of the propeller. The propeller has a reduced sized spinner with an improved aerodynamic profile that can be better matched to an engine nacelle and also has reduced drag.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.