Abstract: An apparatus and method for generating electricity from a liquid flowing in a generally vertical direction down a borehole. There is a turbine disposed at a subsurface position and having an intake and a discharge, the turbine being mechanically coupled via an output shaft to an electric generator such that rotation of the output shaft drives the generator to produce electric power. A control valve assembly is positioned below the turbine, the control valve assembly including a valve adapted to receive water discharged from the turbine and a control system operatively connected to the valve for throttling the valve in response to the rate of flow of liquid to the turbine to maintain the rotation of the turbine in a predetermined RPM range.

Abstract: An apparatus and method for generating electricity from a liquid flowing in a generally vertical direction down a borehole. There is a turbine disposed at a subsurface position and having an intake and a discharge, the turbine being mechanically coupled via an output shaft to an electric generator such that rotation of the output shaft drives the generator to produce electric power. A control valve assembly is positioned below the turbine, the control valve assembly including a valve adapted to receive water discharged from the turbine and a control system operatively connected to the valve for throttling the valve in response to the rate of flow of liquid to the turbine to maintain the rotation of the turbine in a predetermined RPM range.

Abstract: A lineshaft turbine pump includes a packing container having a passageway longitudinally extending therethrough. Rotatably disposed within the passageway is a packing sleeve having a channel longitudinally extending between a threaded first end and an opposing threaded second end. A threaded first end of a line shaft is loosely threaded within the second end of the packing sleeve. Disposed within the channel of the packing sleeve is a thrust shaft. The thrust shaft has a second end biased against the first end of the line shaft. A threaded second end of a drive shaft is screwed into the first end of the packing sleeve such that the drive shaft biases against the first end of the thrust shaft, thereby applying longitudinal force against the line shaft.