Wheel drive system, in particular for an aircraft
First Claim
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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Accused Products
Abstract
A wheel drive system for ground movement of an aircraft includes a motor system and a clutch system. The motor system, which is borne by an unsuspended part of a landing gear strut of the aircraft, includes an electric motor and a reduction gearing system. The clutch system, which connects an output shaft of the electric motor to a wheel of the aircraft via the reduction gearing system, includes a dog-clutch and a translational movement system. The dog-clutch includes a drive part, which is secured to the motor system, and a receiving part, which secures to a tire of the wheel. The translational movement system moves the drive part along an axis of an axle crossbeam of the landing gear strut into an engaged position, in which the drive part collaborates with the receiving part, and a disengaged position, in which the drive part is separated from the receiving part.
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Citations
14 Claims
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1. A wheel drive system for ground movement of an aircraft, the wheel drive system comprising:
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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; anda 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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. An aircraft comprising:
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(a) a wheel; (b) a landing gear strut; and (c) a wheel drive system for ground movement of the aircraft, the wheel drive system including;
(1) a motor system supported by an unsuspended part of the landing gear strut, the motor system including;
(a) an electric motor, and (b) a reduction gearing system, and (2) a clutch system, which connects an output shaft of the electric motor to the wheel 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 secures 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 towards 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. - View Dependent Claims (14)
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Specification