Abstract: A turbocharger includes: a suction part (10b) configured to suction a fluid; an impeller (12) configured to compress the fluid supplied from the suction part (10b); a drive shaft (18) having one end to which the impeller (12) is attached; an intermediate shaft (16) provided at the one end of the drive shaft (18) such that the drive shaft (18) extends in an axial direction from a downstream side to an upstream side of the impeller (12); a motor (14) or a generator having a rotor (14a) attached to a distal end of the intermediate shaft (16) via a coupling (20a), a stator (14c) provided so as to correspond to the rotor (14a), and a body portion (14b) configured to hold the stator (14c); and a cover (30) formed into a tubular shape to surround the intermediate shaft (16) and the coupling (20a).

Abstract: An electric motor support mechanism having a cylindrical member that is attached to the end part of the intake opening side of an air inlet guide, and is formed in a cylindrical shape around an axis line extending along a rotation shaft, a plurality of struts connected to multiple locations on the inner circumferential surface of the cylindrical member, the plurality of struts extending in the radial direction from the inner circumferential surface toward the axis line, and connecting members that connect pairs of struts disposed adjacently in the circumferential direction around the axis line. The end parts of the plurality of struts on the axis-line side in the radial direction are connected in multiple locations on the outer circumferential surface of the electric motor, whereby the electric motor is supported on the axis line.

Abstract: An impeller assembly includes: a compressor impeller; a flange member in which a shaft is inserted, the flange member having an abutting portion to abut on an upstream-side end surface, in an axis line direction, of the hub, and an impeller-side flange portion provided on an upstream side, in the axis line direction, of the abutting portion and protruding outward in a radial direction; a nut screwed on a tip portion of the shaft so as to hold the flange member between the nut and the end surface of the hub; a rotor of an electric generator or an electric motor, the rotor having a rotor-side flange portion disposed on an opposite to the hub across the impeller-side flange portion; and a fastening member fastening the impeller-side flange portion and the rotor-side flange portion to each other.

Abstract: An electric motor support mechanism having a cylindrical member that is attached to the end part of the intake opening side of an air inlet guide, and is formed in a cylindrical shape around an axis line extending along a rotation shaft, a plurality of struts connected to multiple locations on the inner circumferential surface of the cylindrical member, the plurality of struts extending in the radial direction from the inner circumferential surface toward the axis line, and connecting members that connect pairs of struts disposed adjacently in the circumferential direction around the axis line. The end parts of the plurality of struts on the axis-line side in the radial direction are connected in multiple locations on the outer circumferential surface of the electric motor, whereby the electric motor is supported on the axis line.

Abstract: An impeller assembly includes: a compressor impeller; a flange member in which a shaft is inserted, the flange member having an abutting portion to abut on an upstream-side end surface, in an axis line direction, of the hub, and an impeller-side flange portion provided on an upstream side, in the axis line direction, of the abutting portion and protruding outward in a radial direction; a nut screwed on a tip portion of the shaft so as to hold the flange member between the nut and the end surface of the hub; a rotor of an electric generator or an electric motor, the rotor having a rotor-side flange portion disposed on an opposite to the hub across the impeller-side flange portion; and a fastening member fastening the impeller-side flange portion and the rotor-side flange portion to each other.