Impeller assembly, turbocharger, and method of assembling impeller assembly
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United States of America Patent
Stats
-
Sep 18, 2018
Grant Date -
Oct 26, 2017
app pub date -
Apr 21, 2016
filing date -
Apr 21, 2016
priority date (Note) -
In Force
status (Latency Note)
Importance
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.
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