US 12,139,262 B2
Electrical power transmission for propeller deicing
Shibarchi Majumder, Trondheim (NO); and Kim Sørensen, Trondheim (NO)
Assigned to UBIQ Aerospace AS, Trondheim (NO)
Appl. No. 18/274,809
Filed by UBIQ Aerospace AS, Trondheim (NO)
PCT Filed Feb. 14, 2022, PCT No. PCT/EP2022/053530
§ 371(c)(1), (2) Date Jul. 28, 2023,
PCT Pub. No. WO2022/175208, PCT Pub. Date Aug. 25, 2022.
Claims priority of application No. 2102174 (GB), filed on Feb. 16, 2021.
Prior Publication US 2024/0109663 A1, Apr. 4, 2024
Int. Cl. B64D 15/12 (2006.01); B64C 11/00 (2006.01)
CPC B64D 15/12 (2013.01) [B64C 11/00 (2013.01)] 25 Claims
OG exemplary drawing
 
1. A propulsion system for a propeller of an aircraft, the propulsion system comprising:
a rotatable shaft for transmission of mechanical power;
aircraft end electrical connections at an aircraft end of the shaft for connection to first and second terminals of a source of electrical power;
propeller end electrical connections at a propeller end of the shaft, spaced apart from the aircraft end of the shaft, and being for connection to first and second terminals for supplying electrical power to electrical components on the propeller; and
a mechanical coupling at the propeller end of the shaft for mounting the propeller to the shaft;
wherein the shaft comprises:
an inner conductor extending along the length of the shaft and providing an electrically conductive path between the first terminal of the aircraft end electrical connection and the first terminal of the propeller end electrical connection;
an outer conductor extending along the length of the shaft and providing an electrically conductive path between the second terminal of the aircraft end electrical connection and the second terminal of the propeller end electrical connection; and
an electrical insulator extending along the shaft in between the inner and outer conductor.