US 9,814,101 B2
Heated rigid electrical harness for a gas turbine engine
Paul Broughton, Leicester (GB); Michael Christopher Willmot, Sheffield (GB); and Justin Sean Dalton, Derby (GB)
Assigned to ROLLS-ROYCE plc, London (GB)
Filed by ROLLS-ROYCE PLC, London (GB)
Filed on Dec. 9, 2013, as Appl. No. 14/100,745.
Claims priority of application No. 12197402 (EP), filed on Dec. 17, 2012; and application No. 1308033.8 (GB), filed on May 3, 2013.
Prior Publication US 2014/0165531 A1, Jun. 19, 2014
This patent is subject to a terminal disclaimer.
Int. Cl. F02C 7/12 (2006.01); F02C 7/20 (2006.01); F02C 7/32 (2006.01); H05B 3/28 (2006.01); B23P 6/00 (2006.01); H02G 3/04 (2006.01); H01R 12/00 (2006.01); H02G 3/32 (2006.01); B60R 16/02 (2006.01); B64C 3/34 (2006.01); F02C 7/141 (2006.01); B60R 16/08 (2006.01); F02C 7/16 (2006.01); H01R 12/57 (2011.01); H01R 12/59 (2011.01); H01R 12/51 (2011.01); H01R 12/61 (2011.01); H02G 3/00 (2006.01); B60R 16/00 (2006.01); B64D 29/08 (2006.01); F02C 7/00 (2006.01); H02G 1/00 (2006.01); H02G 3/02 (2006.01); F02C 7/047 (2006.01); F02C 7/224 (2006.01); F24H 1/10 (2006.01); H05B 1/02 (2006.01); H05K 7/20 (2006.01)
CPC H05B 3/28 (2013.01) [B23P 6/005 (2013.01); B60R 16/00 (2013.01); B60R 16/02 (2013.01); B60R 16/0207 (2013.01); B60R 16/0215 (2013.01); B60R 16/08 (2013.01); B64C 3/34 (2013.01); B64D 29/08 (2013.01); F02C 7/00 (2013.01); F02C 7/047 (2013.01); F02C 7/12 (2013.01); F02C 7/141 (2013.01); F02C 7/16 (2013.01); F02C 7/20 (2013.01); F02C 7/224 (2013.01); F02C 7/32 (2013.01); F24H 1/105 (2013.01); H01R 12/00 (2013.01); H01R 12/51 (2013.01); H01R 12/515 (2013.01); H01R 12/57 (2013.01); H01R 12/59 (2013.01); H01R 12/592 (2013.01); H01R 12/61 (2013.01); H02G 1/00 (2013.01); H02G 3/00 (2013.01); H02G 3/02 (2013.01); H02G 3/04 (2013.01); H02G 3/32 (2013.01); H05B 1/0236 (2013.01); H05K 7/20 (2013.01); F05D 2260/30 (2013.01); Y02T 50/672 (2013.01); Y10T 29/49002 (2015.01); Y10T 29/49117 (2015.01); Y10T 29/49234 (2015.01); Y10T 29/49236 (2015.01); Y10T 29/49238 (2015.01); Y10T 156/10 (2015.01)] 11 Claims
OG exemplary drawing
 
1. A gas turbine engine comprising:
an electrical harness arranged to transmit electrical signals around the gas turbine engine, wherein the electrical harness comprises a rigid electrical raft that is mounted directly to the gas turbine engine, and the rigid electrical raft comprises:
electrical conductors embedded in a material so as to be surrounded and contacted by, and thereby fixed in position by, the material over their entire length, at least some of the electrical conductors being arranged to transmit the electrical signals; and
electrical heating elements embedded in the material so as to be surrounded and contacted by, and thereby fixed in position by, the material, the electrical conductors and the electrical heating elements being spaced apart, and the electrical heating elements being arranged to provide electrical heating, wherein
a cross-sectional area of the electrical heating elements is smaller than a cross-sectional area of the electrical conductors, and/or the electrical heating elements are constructed from a higher resistance material than the electrical conductors.