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Composite material centrifuge rotor

  • US 4,781,669 A
  • Filed: 10/09/1987
  • Issued: 11/01/1988
  • Est. Priority Date: 06/05/1987
  • Status: Expired due to Fees
First Claim
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1. A composite rotor construction comprising in combination a top disk and a bottom disk, each said disk fabricated from laminated layers with longitudinally extending fibers for reinforcing, said fibers bound together with resins;

  • said laminated layers having a sequentially repeating pattern of radial directions having different angular orientations with respect to a selected radii extending normal to the spin axis of said rotor, each said laminated layer being normal to the spin axis of said rotor;

    a spacer ring comprising a wound fiber hoop sandwiched between said top disk and said bottom disk to form a rotor assembly;

    a radial fiber hoop cured to shrink under tension over the periphery of said rotor assembly and overlie the outside surface of said top disk, said bottom disk and said spacer ring therebetween whereby said rotor assembly at said top disk, bottom disk and spacer ring are radially compressed with respect to the spin axis of said rotor equal and opposite to the dynamic forces of radial tension on said rotor; and

    said bottom disk defining a hub aperture;

    a hub placed within said hub aperture in said bottom disk, said hub adapted for fitting into said aperture under a shrink fit.

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