Abstract: Various systems are provided for an electric turbocharger. As one example, an electric turbocharger includes a turbine casing housing a turbine wheel and a compressor casing housing a compressor wheel, a bearing casing surrounding a shaft connecting the turbine wheel and the compressor wheel, the bearing casing split into a turbine bearing casing, compressor bearing casing, and a stator casing, the stator casing positioned between the turbine bearing casing and compressor bearing casing and housing an electric motor mounted on and around the shaft, and a plurality of bolts, each bolt of the plurality of bolts extending parallel to the shaft and from an outer face of the compressor bearing casing, through the stator casing and turbine bearing casing, and into the turbine casing.

Abstract: Various systems are provided for an electric turbocharger. As one example, an electric turbocharger includes a turbine casing housing a turbine wheel and a compressor casing housing a compressor wheel, a bearing casing surrounding a shaft connecting the turbine wheel and the compressor wheel, the bearing casing split into a turbine bearing casing, compressor bearing casing, and a stator casing, the stator casing positioned between the turbine bearing casing and compressor bearing casing and housing an electric motor mounted on and around the shaft, and a plurality of bolts, each bolt of the plurality of bolts extending parallel to the shaft and from an outer face of the compressor bearing casing, through the stator casing and turbine bearing casing, and into the turbine casing.

Abstract: A power assembly for an internal combustion engine includes a cylinder with a circular wall defining a first inside diameter. A piston is reciprocably housed within the cylinder. An integral, unitary piston deposit scraper is formed in a portion of the circular wall of the cylinder by upsetting a portion of the metallic wall so as to configure a piston scraper with a second inside diameter which is less than the first inside diameter. The inside diameter of the piston scraper closely matches that of the outside diameter of the top land of the piston. As a result, the piston scraper removes combustion deposits from the piston each time it moves into the top dead center position.

Abstract: A power assembly for an internal combustion engine includes a cylinder with a circular wall defining a first inside diameter. A piston is reciprocably housed within the cylinder. An integral, unitary piston deposit scraper is formed in a portion of the circular wall of the cylinder by upsetting a portion of the metallic wall so as to configure a piston scraper with a second inside diameter which is less than the first inside diameter. The inside diameter of the piston scraper closely matches that of the outside diameter of the top land of the piston. As a result, the piston scraper removes combustion deposits from the piston each time it moves into the top dead center position.