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Turbosupercharger having rotary electric machine of internal combustion engine

A turbocharger, rotary electric machine technology, applied in the direction of internal combustion piston engine, combustion engine, machine/engine, etc., to increase the rigidity of the shaft, reduce the number, and prevent the shaft from bending

Inactive Publication Date: 2011-06-08
TOYOTA JIDOSHA KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003]The disadvantage that may result in demagnetization of the magnets incorporated in the rotor and deterioration of the efficiency of the rotating electrical machine when the rotor is exposed to high temperatures

Method used

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  • Turbosupercharger having rotary electric machine of internal combustion engine
  • Turbosupercharger having rotary electric machine of internal combustion engine
  • Turbosupercharger having rotary electric machine of internal combustion engine

Examples

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Embodiment Construction

[0019] figure 1 One embodiment of the invention applied to a turbocharger of an internal combustion engine of a motor vehicle is shown. The turbocharger 1 includes an exhaust turbine section 2, a compressor section 3, and a rotary electric machine 4 provided therebetween. The exhaust turbine section 2 includes a turbine housing 5 provided to constitute a part of the exhaust passage of the internal combustion engine, and a turbine 6 provided in the turbine housing 5 . On the other hand, the compressor section 3 includes a compressor housing 7 provided to constitute a part of the intake passage of the internal combustion engine, and a pump impeller (compressor impeller) 8 provided in the compressor housing 7 . The bearing housing 9 is arranged between the turbine housing 5 and the compressor housing 7 . One end of the turbine 6 is provided with a turbine shaft 10 such that the turbine shaft 10 can rotate integrally and cannot be separated in the axial direction. The turbine ...

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Abstract

There is provided a turbosupercharger (1) having a rotary electric machine (4) in which a magnet (14) is disposed on a turbine shaft (10) between a turbine (6) and a compressor impeller (8) so that a rotor (12) of the rotary electric machine is constituted on the turbine shaft, wherein a cylindrical member (20) in which a magnet holder (21) covering the magnet from an outer peripheral side and a sleeve portion (24) to be disposed on an inner periphery of a bearing (35) of the turbine shaft are integrated with each other is provided on the turbine shaft.

Description

technical field [0001] The invention relates to a turbocharger for an internal combustion engine in which a rotating electric machine is combined on a turbine shaft. [0002] Background technique [0003] As a turbocharger for an internal combustion engine, there is known a turbocharger having a rotary electric machine coupled to a turbine shaft that electrically drives the turbine shaft to increase the supercharging effect, or utilizes the rotation of the turbine shaft to Generate electricity to recover electrical energy from exhaust energy. In this type of turbocharger, when the rotating electric machine operates, the rotor is heated by eddy current, and the turbine side is exposed to exhaust heat, so that the heat load becomes large. Therefore, it is recommended to take measures against the heat generation of the rotating electric machine. As an example thereof, a turbocharger is proposed in which a temperature rise on the stator side is detected, and when the temperatu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02B39/10
CPCF02B37/10F02B37/005Y02T10/144F02B39/10Y02T10/12
Inventor 北田孝佳
Owner TOYOTA JIDOSHA KK
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