A pumping system is provided. The pumping system may include a drive assembly and a pump assembly that is operatively coupled to the drive assembly. The pump assembly may include a pump configured to pressurize a fluid and a multispeed gearbox that is attached to the pump. The multispeed gearbox may be configured to transfer rotational energy from the drive assembly to the pump.

The liquid delivery device includes a liquid delivery controller configured to operate, in a complementary manner, a primary plunger pump and a secondary plunger pump of each of a first liquid delivery pump and a second liquid delivery pump so that the first liquid delivery pump and the second liquid delivery pump perform continuous liquid delivery at a preset flow rate to each other, and a forcible synchronization part configured to forcibly synchronize operation states of the secondary plunger pumps of the first liquid delivery pump and the second liquid delivery pump by operating the primary plunger pump and the secondary plunger pump of the first liquid delivery pump and the second liquid delivery pump at the calculated operation speed.

The liquid delivery device includes a liquid delivery controller configured to operate, in a complementary manner, a primary plunger pump and a secondary plunger pump of each of a first liquid delivery pump and a second liquid delivery pump so that the first liquid delivery pump and the second liquid delivery pump perform continuous liquid delivery at a preset flow rate to each other, and a forcible synchronization part configured to forcibly synchronize operation states of the secondary plunger pumps of the first liquid delivery pump and the second liquid delivery pump by operating the primary plunger pump and the secondary plunger pump of the first liquid delivery pump and the second liquid delivery pump at the calculated operation speed.

A bent axis plunger-type variable hydraulic motor pump, including a cylinder body, a plunger, a ball connecting rod, a plunger spherical hinge, a multistage ball track spherical hinge shaft, a multistage ball track bearing ring, a retainer plate, an oil distributing plate, an oil distributing plate pin shaft, a suspension circle, a bushing bearing ring, a box bushing shaft, a box, a large variable ball connecting rod assembly, and a small variable ball connecting rod assembly. The large and small variable ball connecting rod assemblies are mounted on the box. The multistage ball track spherical hinge shaft is supported on the multistage ball track bearing ring, and a multistage rolling element holder in which a rolling element is provided is mounted in the multistage ball track spherical hinge shaft. Two ends of the ball connecting rod are hingedly connected to the multistage ball track spherical hinge shaft and the plunger.

A bent axis plunger-type variable hydraulic motor pump, including a cylinder body, a plunger, a ball connecting rod, a plunger spherical hinge, a multistage ball track spherical hinge shaft, a multistage ball track bearing ring, a retainer plate, an oil distributing plate, an oil distributing plate pin shaft, a suspension circle, a bushing bearing ring, a box bushing shaft, a box, a large variable ball connecting rod assembly, and a small variable ball connecting rod assembly. The large and small variable ball connecting rod assemblies are mounted on the box. The multistage ball track spherical hinge shaft is supported on the multistage ball track bearing ring, and a multistage rolling element holder in which a rolling element is provided is mounted in the multistage ball track spherical hinge shaft. Two ends of the ball connecting rod are hingedly connected to the multistage ball track spherical hinge shaft and the plunger.

A high pressure pump head assembly capable of pumping multiple fluids on demand and under pressure for desired applications in association with a single high pressure pump.

A high pressure pump head assembly capable of pumping multiple fluids on demand and under pressure for desired applications in association with a single high pressure pump.

A piston pump includes: a sleeve housing which is provided with a discharge hole and defines a bore; a piston which has an inlet flow passage for drawing oil into the bore and is reciprocally movably inserted into the bore; an inlet valve which is configured to open/close the inlet flow passage; an outlet valve cover which is coupled to the sleeve housing to surround a portion at which the discharge hole is formed; an outlet valve which is configured to open/close the discharge hole; and a sealing member which is interposed between the sleeve housing and the piston to provide a sealing therebetween. The sealing member is provided with a separation prevention protrusion against which the piston is blocked to prevent a separation of the piston.

Methods and systems pertaining to generating a startup or other operating order of pumps of a pumping system for performing a subterranean formation fracturing operation, and/or another pumping operation, and for coordinating distribution of flow rates to the pumps for performing the pumping operation.

Methods and systems pertaining to generating a startup or other operating order of pumps of a pumping system for performing a subterranean formation fracturing operation, and/or another pumping operation, and for coordinating distribution of flow rates to the pumps for performing the pumping operation.