HYBRID ELECTRIC TRANSMISSION FOR HYDRAULIC FRACTURING

Abstract: a hydraulic fracturing system includes a hybrid electric transmission assembly to transfer power from an internal combustion engine to a hydraulic fracturing pump. the transmission assembly includes a first driveshaft coupled to the engine and a second driveshaft coupled to the pump with a primary drivetrain gear assembly coupling the first driveshaft to the second driveshaft. an electric drive gearset is disposed between the primary drivetrain gear assembly and the pump. an electric motor is couplable to the electric drive gearset, thereby allowing power to be passed from the electric motor to drive the pump and bypass the primary drivetrain gear assembly during the gear change. the system may include a plurality of electric motors each having an electric motor axis and an output gearset coupled to the electric drive gearset, where each of the electric motor axii are spaced radially outward from the first and second driveshafts.

Inventor(s): Christopher Buckley, Brian Boguski, Joseph McFarland

CPC Classification: E21B43/2607 (by forming crevices or fractures)

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