Abstract: New and retro-fit systems utilized on a chemical fuel-powered vehicle that converts the vehicle into a hybrid chemical fuel-electric vehicle.

Abstract: A vehicle that utilizes a counter-rotating electric motor to generate at least a portion of its propulsive force that includes the vehicle with front and rear wheels, the counter-rotating motor with two oppositely rotating components linked to two drive shafts that are coupled to the wheels in a common rotational direction, a component for reversible stopping the rotation of at least one rotating component while permitting the drive shafts to rotate, a power source linked to the motor, and a controller that controls both the speed of the vehicle and the reversible stopping component to switch between a first operational mode for slower vehicle speeds and a second operational mode for higher vehicle speeds, thereby increasing the overall electrical efficiency for operating the vehicle.

Abstract: An efficient thin-profile counter-rotating (CR) differential electric motor assembly is utilized to power an aircraft vehicle or fan for moving a gas and includes two oppositely rotating propellers that may be mounted to horizontal flight and vertical lift-off aircraft or a fan housing in spaces similar in size to mounting spaces for traditional motors having only one propeller.