Zack Thornton

Roy Aune

Kirk Fiscus

Oilfield pumping systems are improved by the incorporation of a reciprocating gas engine having a mode of operation that seeks to maintain a constant engine speed or rotational velocity. A driveline including a transmission with shiftable gears connects the reciprocating gas engine with a hydraulic pump configured for use in oilfield hydraulic fracturing operations. A control system is configured with programmatic instructions for operating a dual electric machine that alters torque emanating from the reciprocating gas engine to facilitate upshifting of gears in the transmission. This may be done by preloading the reciprocating gas engine with reverse or negative torque operating against that emanating from the reciprocating gas engine prior to the upshifting of gears, and/or by providing positive torque to assist that of the reciprocating gas engine after the upshifting of gears.

Growing community of inventors

Piedmont, OK, United States of America

Zack Thornton