US 12,000,251 B2
Fracturing pumps
Jeff Rother, Oklahoma City, OK (US); and Brent Finley, Oklahoma City, OK (US)
Assigned to STEWART & STEVENSON LLC, Houston, TX (US)
Filed by STEWART & STEVENSON LLC, Houston, TX (US)
Filed on Jun. 11, 2021, as Appl. No. 17/345,995.
Claims priority of provisional application 63/042,055, filed on Jun. 22, 2020.
Prior Publication US 2021/0396120 A1, Dec. 23, 2021
Int. Cl. E21B 43/26 (2006.01); F04B 17/03 (2006.01); F04B 17/05 (2006.01); F04B 17/06 (2006.01); F04B 49/06 (2006.01); F04B 53/08 (2006.01); F04B 53/18 (2006.01); F02B 63/04 (2006.01)
CPC E21B 43/2607 (2020.05) [F04B 17/03 (2013.01); F04B 17/05 (2013.01); F04B 17/06 (2013.01); F04B 49/065 (2013.01); F04B 53/08 (2013.01); F04B 53/18 (2013.01); F02B 63/047 (2013.01); F04B 2205/09 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A frac system comprising:
an engine, the engine having a crankshaft and a radiator, the radiator including a radiator cooling fan;
a transmission coupled to the engine;
a frac pump coupled to the transmission, the frac pump including a frac pump lubricating oil pump; and
a traction drive motor system, the traction drive motor system including:
a first set of traction drive motors, the first set of traction drive motors mechanically connected to the crankshaft;
a second set of traction drive motors, the second set of traction drive motors mechanically connected to the radiator cooling fan; and
a third set of traction drive motors, the third set of traction drive motors mechanically connected to the frac pump lubricating oil pump;
wherein the first set of traction drive motors are in electrical communication with a power storage system, the power storage system is in electrical communication with electric motor controls; and
wherein the second set of traction drive motors and the third set of traction drive motors are in electrical and data communication with the electric motor controls.