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US 12,221,766 B2Granted
Work vehicle having electric machine and energy storage device
AssigneeDeere & Company
InventorsRandall L. Long, Stacy K. Worley, Lashun O. Mowers
Life of this patent
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Abstract
A work vehicle and energy storage device include a ballast providing ballast weight to the horizontal end of the work vehicle, a stator of an electric machine having a vertically extending axis, and a rotor of the electric machine fixed for rotation with the ballast.
Claims20
A work vehicle comprising:
- a prime mover configured to propel the work vehicle;
- a ballast disposed at an end of the work vehicle providing ballast weight to the end of the work vehicle;
- an electric machine disposed in the ballast such that a rotor of the electric machine provides the ballast weight of the ballast;
- and
- a power takeoff system coupled to the prime mover and configured to transmit rotational energy from the prime mover to the rotor of the electric machine.
2 more elements
An energy storage device mounted at a horizontal end of a work vehicle for storing energy generated from operation of the work vehicle, the energy storage device comprising:
- a ballast providing ballast weight to the horizontal end of the work vehicle;
- a stator of an electric machine having a vertically extending axis;
- and
- a rotor of the electric machine fixed for rotation with the ballast and configured for rotation about the vertically extending axis.
1 more element
An energy storage device for storing energy of a work vehicle, the energy storage device comprising:
- an electric machine comprising a stator and a rotor;
- wherein the rotor is configured to rotate from the flow of electrical current provided to the electric machine, rotate to store energy of the work vehicle, provide a rotor mass to an end of the work vehicle, and generate electrical current for the work vehicle from rotation of the rotor;
- and
- wherein the rotor mass is greater than a stator mass at the end of the work vehicle such that the energy storage device defines the end of the work vehicle.
1 more element
Dependencies are inferred from the claim text.