MOTOR VEHICLE ROTARY ELECTRIC MACHINE DRIVE ASSEMBLY
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United States of America Patent
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Issued Date -
May 14, 2020
app pub date -
Jun 27, 2018
filing date -
Jun 28, 2017
priority date (Note) -
Published
status (Latency Note)
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Abstract
The present invention relates to a motor vehicle rotary electric machine (100) drive assembly, the drive assembly comprising a rotor shaft (2) extending along a longitudinal axis (X) and a connecting piece (4) providing connection between the shaft and the torque transmission system comprising a bore (41) for the passage of the rotor shaft, the drive assembly being characterized in that the bore comprises a first wall (41a) extending axially and a cylindrical second wall (41b) extending axially in alignment with the first wall, and in that the rotor shaft comprises:—a first surface (21) extending axially and cooperating with the first wall of the bore to centre the connecting piece around the rotor shaft; and—a second cylindrical surface (22) extending axially and provided with knurling, with a diameter (A) greater than the diameter (A′) of the second wall of the bore, the connecting piece being force-fitted onto the rotor shaft by means of the knurling.
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