SUPERCHARGING APPARATUS FOR A COMBUSTION ENGINE

摘要

A supercharging apparatus (20) for a combustion engine (21) having an electrically drivable compressor (1), which has a compressor housing (2) in which a compressor wheel (3) is arranged, which compressor wheel is fastened on one end (4) of a rotor shaft (5), and which has a compressor housing rear wall (6), which is arranged behind the compressor wheel (3) and closes the compressor housing (2); an electric motor (7); and a stator winding (12), which has a line (21) formed from a multiplicity of litz wires (22,23, 24). The litz wires (22, 23, 24) of the line (21) have a first degree of twisting in an end winding region (25) of the stator winding (12) and have a second degree of twisting in a magnetically active section (I, II, III, IV). The first degree of twisting is higher than the second degree of twisting.

主权项

1. A supercharging apparatus (20) for a combustion engine (21), comprising
an electrically drivable compressor (1) which has a compressor housing (2),
in which a compressor wheel (3) is arranged, which compressor wheel is fastened on one end (4) of a rotor shaft (5), andwhich has a compressor housing rear wall (6) which is adjacent to a compressor wheel rear (36) and is fastened on the compressor housing (2); an electric motor (7); and a stator winding (12), which comprises a line (21) formed from a multiplicity of litz wires (22, 23, 24), wherein the litz wires (22, 23, 24) of the line (21) have a first degree of twisting in an end winding region (25) of the stator winding (12) and have a second degree of twisting in a magnetically active section (I, II, III, IV), wherein the first degree of twisting is higher than the second degree of twisting.