US 12,000,251 B2Granted

Fracturing pumps

AssigneeStewart & Stevenson LLC

InventorsJeff Rother, Brent Finley

Life of this patent

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Abstract

A frac system includes an engine, the engine having a crankshaft and a radiator. The radiator includes a radiator cooling fan. The frac system also includes a transmission coupled to the engine and a frac pump coupled to the transmission, the frac pump including a frac pump lubricating oil pump. The frac system further includes a traction drive motor system. The traction drive motor system includes a first set of traction drive motors, the first set of traction drive motors mechanically connected to the crankshaft. The traction drive motor system also includes a second set of traction drive motors, the second set of traction drive motors mechanically connected to the radiator cooling fan. In addition, the traction drive motor system includes third set of traction drive motors, the third set of traction drive motors mechanically connected to the frac pump lubricating oil pump.

Claims8

Dependent claims

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.

9 more elements

Dependencies are inferred from the claim text.

Facts

Application: 17/345,995Filed 11 Jun 2021 · us provisional application
Priority: 22 Jun 2020
Published: US 2021/0396120 A123 Dec 2021
Granted: 4 Jun 2024
Term ends: Not estimatedThe source records don’t support an estimate.

Classification13 codes

E21B 43/2607
By forming crevices or fractures: surface equipment specially adapted for fracturing operations
F02B 63/06
Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices: for…
F04B 17/03
Pumps characterised by combination with, or adaptation to, specific driving engines or motors: driven by electric motors
F04B 17/05
Pumps characterised by combination with, or adaptation to, specific driving engines or motors: driven by internal-combustion engines

Family

Application63/042,055Us provisional application · filed 22 Jun 2020
US 2021/0396120 A1Pre-grant publication · published 23 Dec 2021
US 12,000,251 B2This patent

From the US filing history. Foreign family members aren’t listed.

Timeline

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