Compressor wheels and magnet assemblies for internal combustion engine supercharging devices

A compressor device for use with an internal combustion engine, comprising:

• a compressor housing;
• a rotatable shaft supported by said housing carrying a combustion air compressor wheel;
• a combustion air intake adjacent to said combustion air compressor wheel to direct ambient air to said compressor wheel;
• and
• a brushless assisting electric motor incorporating said compressor wheel, and comprising a plurality of permanent magnets and an inner core with an affixed end piece located on the compressor wheel and retained for rotation with the compressor wheel by a surrounding multi-layer, carbon filament winding, and a plurality of stator windings provided adjacent to the plurality of permanent magnets, said plurality of stator windings being energizable to rotate said compressor wheel and produce a flow of compressed air from the compressor wheel.

A compressor wheel for an internal combustion engine supercharging device, comprising

• an aluminum disk adapted for rotation about its center, having a front face formed with a plurality of air compressing vanes and a back face formed with an axially extending projection as a magnet mounting surface, said magnet mounting surface being radially spaced intermediate the center and periphery of the aluminum disk,
• a plurality of magnets located on the magnet mounting surface of the aluminum disk, and
• a multi-layer carbon filament magnet retainer wound around the plurality of magnets and the magnet mounting surface of the aluminum disk to secure the plurality of magnets in location on the back face of the aluminum disks,
• wherein the plurality of magnets are cemented to an inner core, said inner core being fitted to the axially-extending projection and said multi-layer carbon filament retainer being wound over the plurality of magnets and inner core.