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Wheel drive system, in particular for an aircraft

  • US 10,442,528 B2
  • Filed: 06/30/2015
  • Issued: 10/15/2019
  • Est. Priority Date: 06/30/2014
  • Status: Expired due to Fees
First Claim
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1. A wheel drive system for ground movement of an aircraft, the wheel drive system comprising:

  • a motor system supported by an unsuspended part of a landing gear strut of the aircraft, the motor system including;

    (a) an electric motor, and (b) a reduction gearing system; and

    a clutch system, which connects an output shaft of the electric motor to a wheel of the aircraft via the reduction gearing system, the clutch system including;

    (a) a dog-clutch including (i) a drive part, which is secured to the motor system, and (ii) a receiving part, which is secured to a tire of the wheel, and (b) a translational movement system, which translationally moves the drive part along an axis of an axle crossbeam of the landing gear strut into (i) an engaged position, in which the drive part collaborates with the receiving part, and (ii) a disengaged position, in which the drive part is separated from the receiving part,wherein the receiving part includes a plurality of shock-absorbing pads overmolded directly on a lateral sidewall of the tire and extending axially from the lateral sidewall towards the drive part, the plurality of shock-absorbing pads being circumferentially spaced apart so as to leave a square-edged slot between each adjacent pair of the shock-absorbing pads.

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