Abstract: Disclosed herein is an apparatus of a contra rotating generator. The contra rotating generator comprises a cylindrical armature supported on an inner shaft. The inner shaft rotates in a first direction. A cylindrical magnetic field rotor is supported on an outer shaft. The outer shaft is oriented coaxially to the inner shaft. The outer shaft contra rotates opposite to the first direction. A plurality of cam followers maintains uniform air gap between outer surface of the cylindrical armature and inner surface of the cylindrical magnetic field rotor. The uniform air gap prevents mechanical contact between the cylindrical armature and the cylindrical magnetic field rotor. A sprag clutch prevents unidirectional rotation of the inner shaft and the outer shaft. The contra rotation between the cylindrical armature and the cylindrical magnetic field rotor increases relative magnetic flux speed for generating electrical power at low speeds of operation.

Abstract: Disclosed herein is an apparatus of a contra rotating generator. The contra rotating generator comprises a cylindrical armature supported on an inner shaft. The inner shaft rotates in a first direction. A cylindrical magnetic field rotor is supported on an outer shaft. The outer shaft is oriented coaxially to the inner shaft. The outer shaft contra rotates opposite to the first direction. A plurality of cam followers maintains uniform air gap between outer surface of the cylindrical armature and inner surface of the cylindrical magnetic field rotor. The uniform air gap prevents mechanical contact between the cylindrical armature and the cylindrical magnetic field rotor. A sprag clutch prevents unidirectional rotation of the inner shaft and the outer shaft. The contra rotation between the cylindrical armature and the cylindrical magnetic field rotor increases relative magnetic flux speed for generating electrical power at low speeds of operation.

Abstract: The present invention relates generally to the design and fabrication of a micro solar electric power generating apparatus and, more particularly, a method of using microsolar thermal jets to produce electrical power by economical means for residential and commercial buildings. A simple rotary jet engine has been developed to drive an electrical generator. A hybrid solar concentrator that combines the benefit of both parabolic dish and trough has been used to raise the enthalpy of the working fluid without having end thermal flux leakage that is common to the conventional troughs.

Abstract: A method of enhancing wind farm power production using hybrid wind turbine apparatus includes a pair of counter rotating rotors in tandem. An upright mast supports bearings underlying and rotatably supporting a hub assembly. A first set of rotor is mounted on the windward end of the generator shaft, while the second rotor is mounted on the downwind side of the generator shaft. Three alternate approaches are used to increase power production of a wind farm. One approach uses two turbines assembled in tandem. The second approach uses a conventional high-speed induction generator powered by tandemly mounted contra rotating rotors using suitably designed gearboxes. The third approach uses a specially designed low speed direct drive induction generator powered by tandemly mounted contra rotating rotors without the need of gearboxes. Thus, contra rotating wind turbines can be used to generate more electrical energy and revenue from the same wind farms.

Abstract: The present invention relates generally to the design of a novel hybrid electric vehicle and, more particularly, to a method of using micro-thrust engines to produce electrical power by fuel-efficient means. A combination of a deep cycle battery and micro-thrust engines powered generator system are used to provide needed propulsion power. Water/steam is used to cool the combustion chamber of said engines thereby regeneratively extracting heat of rejection to super heat the steam. The super heated steam is further injected into the combustion chamber to extract additional energy. Thus, in normal driving conditions, power is drawn from the battery, while during acceleration and uphill driving, steam is used instead of fuel thereby economizing on fuel consumption.