Robert W. Bosley

Abstract: A power control system for a turbogenerator which provides electrical power to one or more pump-jack oil wells. When the induction motor of a pump-jack oil well is powered by three-phase utility power, the speed of the pump-jack shaft varies only slightly over the pumping cycle but the utility power requirements can vary by four times the average pumping power. This power variation makes it impractical to power a pump-jack oil well with a stand-alone turbogenerator controlled by a conventional power control system. This power control system comprises a turbogenerator inverter, a load inverter, and a central processing unit which controls the frequency and voltage/current of each inverter. Throughout the oil well's pumping cycle, the central processing unit increases or decreases the frequency of the load inverter in order to axially accelerate and decelerate the masses of the down hole steel pump rods and oil, and to rotationally accelerate and decelerate the masses of the motor rotors and counter balance weights. This allows kinetic energy to be alternately stored in and extracted from the moving masses of the oil well and allows the oil pumping power to be precisely controlled. Historical data on the load inverter's frequency versus time profile throughout previous pumping cycles, which resulted in nearly constant turbogenerator power requirements, is utilized to further reduce variations in power.

TL;DR: In this article, a gaseous fuel compression and control system is described which utilizes one or more helical flow compressor/turbine integrated with a permanent magnet motor/generator and driven by a torque controlling inverter.

TL;DR: In this article, a system to hydrostatically augment the thrust load capacity of a bilateral compliant foil hydrodynamic fluid film thrust bearing for a turbomachine is disclosed, where a plurality of channels and fixed orifices are provided in the bearing thrust plate to deliver and regulate compressor bleed air flow.

TL;DR: In this paper, a compliant foil hydrodynamic fluid film journal bearing located at the free end of the shaft serves as a non-contacting rotary shaft seal and forms a thrust piston chamber.

TL;DR: In this paper, a helical flow compressor/turbine or pump with integral permanent magnet motor/generator is disclosed which can be configured as a single stage, two stage or three stage rotary machine.