Engine driven generator set system having substantially no roll torque
First Claim
Patent Images
1. A generator set comprising an engine-driven generator for converting fuel to electricity, the generator including a rotor and a stator which are mounted on counter rotating, concentric shafts, angular momentum of the rotor and the stator being selected to provide the generator set with substantially no net angular momentum.
1 Assignment
0 Petitions
Accused Products
Abstract
An engine driven generator set system includes a generator which includes a rotor and a stator which rotate in opposite directions so that vibratory roll torques are eliminated during generator set operation.
64 Citations
17 Claims
-
1. A generator set comprising an engine-driven generator for converting fuel to electricity, the generator including a rotor and a stator which are mounted on counter rotating, concentric shafts, angular momentum of the rotor and the stator being selected to provide the generator set with substantially no net angular momentum.
-
2. A generator set comprising:
-
a combustion engine; a first generator drive shaft driven by the combustion engine; a second generator drive shaft concentrically disposed relative to the first generator drive shaft; connector means for rotating the first and second generator drive shafts in opposite directions; a generator having a rotor and a stator, the rotor and the stator being mounted on the first and second generator drive shafts for rotation in opposite directions, a net angular momentum of the generator set being substantially zero thereby eliminating any net roll torque. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
-
-
15. A hybrid electric vehicle having an engine driven generator set as an auxiliary power unit, comprising:
-
a battery assembly providing electricity to the hybrid electric vehicle, the battery assembly being electrically connected to an electric motor of the hybrid electric vehicle; the engine driven generator set electrically connected to the battery assembly for charging the battery assembly when the battery assembly needs charging; and wherein the engine driven generator set system includes a generator having its rotor and stator mounted on counter rotating, concentric shafts so as to provide an auxiliary power unit having substantially no net angular momentum.
-
-
16. A generator set comprising an engine-driven generator for converting fuel to electricity, the generator includes a rotor which is mounted on a first rotating shaft and stator which is mounted on a second shaft concentrically disposed with respect to the first shaft and rotating in an opposite direction with respect to the first shaft, angular momentum of the rotor and stator being selected to provide the generator set with substantially no net angular momentum.
-
17. A method of operating an engine-driven generator set, comprising the steps of:
-
rotating a rotor mounted on a first shaft in a first direction; rotating a stator mounted on a second shaft concentrically disposed with respect to the first shaft in an opposite direction; and providing the rotor and stator each with an angular momentum to provide the generator set with substantially no net angular momentum.
-
Specification