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Rotor attachment assembly

  • US 5,022,823 A
  • Filed: 03/06/1989
  • Issued: 06/11/1991
  • Est. Priority Date: 03/06/1989
  • Status: Expired due to Fees
First Claim
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1. A rotor attachment assembly for accurately positioning a rotor on a rotor shaft, comprising:

  • a rotor;

    said rotor having a rotor shaft receiving aperture axially defined therein;

    a rotor shaft having a substantially smooth elongated shaft body for attachment to said rotor;

    said rotor shaft further having a threaded end portion;

    a nut for holding said rotor to said shaft, said nut having an aperture axially defined therein, said aperture including a shaft locating hole having a smooth inner wall and a threaded portion for receiving said shaft; and

    said elongated shaft body being of sufficient length so that a portion of said shaft body extends beyond said rotor when said rotor is in place on said rotor shaft;

    said rotor having a multi-vaned body portion and a nut mating portion, said nut mating portion extending beyond said multi-vaned body portion;

    said nut mating portion having a substantially planar nut mating surface;

    said nut mating surface being perpendicular to said axially-defined aperture of said rotor;

    said nut having a substantially planar rotor mating surface for mating with said nut mating surface;

    said rotor mating surface being perpendicular to said axially-defined aperture of said nut;

    said smooth shaft body and said smooth inner wall of said nut having an interference fit.

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