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Selectable overspeed secondary drive module

  • US 6,752,233 B1
  • Filed: 02/11/2003
  • Issued: 06/22/2004
  • Est. Priority Date: 02/11/2003
  • Status: Expired due to Term
First Claim
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1. A vehicle drive system comprising:

  • a primary axle driven by torque from a transmission;

    an output shaft driven by the primary axle or transmission;

    a secondary axle;

    a secondary axle clutch configured to operatively connect the secondary axle with the output shaft; and

    a secondary axle drive module operatively connected between the output shaft and secondary axle, said drive module including an overspeed gear set connected in parallel with a one way clutch to facilitate application of torque to the secondary axle even when the secondary axle is rotating faster than the primary axle.

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