| 摘要 |
PROBLEM TO BE SOLVED: To provide a coupling device capable of easily retrofitting an auxiliary machine to a rotor of an exhaust gas turbocharger, without damaging a screw connection part between individual components of the rotor.SOLUTION: A coupling device for fitting an auxiliary machine to a rotor of a gas turbocharger includes a nut 31 for fastening a compressor impeller 20 of the exhaust gas turbocharger to a shaft with a screw. Further, the coupling device includes a coupling element 52 coupled to the shaft in a shape connection manner and connected to the nut in the shape connection manner. Consequently, the shape connection occurs between the shaft 30 of the exhaust gas turbocharger and the coupling element.SELECTED DRAWING: Figure 2 |
