Abstract: A manually adjustable constriction or orifice to provide a means for optimizing the hydraulic power being converted to heat in a hydraulic windpower conversion system. The hydraulics and constriction are arranged to obtain the proper conditions necessary so that pressure head is converted to velocity head with the sum of the two remaining constant.Instrumentation to facilitate this optimizing adjustment process. A combination of a pump-speed transducer and a pressure-sensing transducer, along with appropriate electronic circuitry is described which provides an output display of the power being converted to heat.Instrumentation to accumulate and display the total energy converted to heat. Electronic devices and display equipment transform hydraulic power signals into energy signals, totalize the energy signals over time, and periodically display the accumulated energy count.

Abstract: A combination wind rotor and output energy transducer to provide output energy from the system and to automatically regulate the wind rotor at all wind velocities to thereby allow the wind rotor to operate at a constant tip speed/wind velocity ratio and at its maximum efficiency. The energy transducer is a combination of positive displacement hydraulic pump and an orifice in the hydraulic system to generate heat. Overspeed protection is afforded by maximum hydraulic loading of the wind rotor in extreme wind conditions.A wind rotor steering system by which the wind rotor is oriented into the wind at all wind velocities. The wind rotor restoring torque is automatically in balance with its reaction torque.