Resistive elements for heating an aerofoil, and device for heating an aerofoil incorporating such elements
US5971323A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 25, 1997 |
| Grant date | Oct 26, 1999 |
| Priority date | — |
| Expiry date | Nov 25, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB64D15/12
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
To combat the formation of ice on an aerofoil, several resistive elements each consisting of electrically conducting fibers parallel to the leading edge and through which an electric current is made to flow to dissipate heat by a Joule effect are incorporated into this aerofoil close to its leading edge. In order to obtain a thermal power which can vary along the leading edge, the resistive elements are produced by superposing several layers of conducting fibers, at least one of which layers has a constant width, and at least one other of which has a width which varies continuously along the leading edge, but remains smaller than said constant width.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.