Tuesday, April 26, 2011

US Patent 7931828 - CNT composites for gas turbine engines


Gas turbine engines include wiring harnesses subject to wear due to vibration of moving parts. This patent is from Rolls-Royce Corporation and teaches using carbon nanotube conductive composites to improve reliability. Claim 1 reads:

1. A gas turbine engine comprising:

a structure having a movable portion, a static portion, and a plurality of electrically conductive paths extending in a plurality of directions to send electrical signals to various locations of the gas turbine engine, wherein the electrically conductive paths are embedded in at least one of the movable portion and the static portion, and each of the electrically conductive paths comprises a resin sleeve impregnated with carbon nanotubes and surrounding a fiber extending through the structure.