The present invention relates to a filtration unit for filtering the water in a pool or basin, in particular a swimming pool, said unit being mounted behind a wall of said pool, and communicating with said pool via a suction intake (3, 6) and via a delivery orifice to generate a forced flow of water from and back into the pool through a filtration tank and through a suction column by means of centrifugal hydraulic pump. The centrifugal hydraulic pump has an electric motor coupled to a centrifugal turbine housed in a pump body. The electric motor is a sealed, brushless, autonomously controlled motor that is powered at very low voltage and that may advantageously be immersed inside the filtration unit below the level of the water contained in said pool, thereby enabling said motor to be cooled and sound-proofed naturally by the forced flow of the water from the pool, thereby forming a filtration unit and a pool that have low energy consumption.

An oil field pump installed within a pipe that connects to an oil field, feeds accumulated extraction oil in a predetermined direction and includes a rotor, a stator mounted on the outer circumference of the rotor, a flow path for flow of the extraction oil connecting an area formed within the rotor to an area formed between the rotor and the stator, a thrust bearing that supports the axial weight of the rotor and the stator, and a supply pipe that supplies a portion of the extraction oil in the flow path to the thrust bearing. The thrust bearing includes a protrusion part fixed to the outer circumference of the rotor and rotating as one piece with the rotor, and a facing part fixed to the stator and facing opposite a surface in the axial direction of the protrusion.

An electrical submersible pumping system includes thrust bearings and radial bearings fabricated from a micro-grained polycrystalline diamond compact (“USPDC”) material that is ultra-strong; and where the USPDC is produced using a catalyst free process. In examples, all components of the bearings are formed from the ultra-strong USPDC material. Pads are in the bearings that have a contact surface, and the pads selectively tilt about a tilt member in response to variations in an opposing contact surface. The tilt members are attached to or otherwise associated with the pads, and are in contact with a resilient member that improves tilting response of the pads. The resilient members are encased in jackets that cover surfaces of the resilient members not in contact with the tilt members. The jackets are set in channels formed in structure of the bearings.

An electrical submersible pumping system includes thrust bearings and radial bearings fabricated from a micro-grained polycrystalline diamond compact (“USPDC”) material that is ultra-strong; and where the USPDC is produced using a catalyst free process. In examples, all components of the bearings are formed from the ultra-strong USPDC material. Pads are in the bearings that have a contact surface, and the pads selectively tilt about a tilt member in response to variations in an opposing contact surface. The tilt members are attached to or otherwise associated with the pads, and are in contact with a resilient member that improves tilting response of the pads. The resilient members are encased in jackets that cover surfaces of the resilient members not in contact with the tilt members. The jackets are set in channels formed in structure of the bearings.

An electrical submersible well pump (ESP) has a motor electrical connector mounted to an exterior of the motor. A motor sensor connects to an interior side of the motor electrical connector. Seal first and second electrical connectors mount to an exterior of a seal/motor adapter. A seal internal wire within the seal section electrically connects interior sides of the seal first and second electrical connectors together. An external motor jumper wire extends alongside the motor between the motor electrical connector and the seal first electrical connector. A pump electrical connector mounts to an exterior of a pump/seal adapter and connects to a pump sensor within the pump. An external seal jumper wire connects between the seal second electrical connector and the pump electrical connector.

Provided is a water pump including: a housing; a support shaft fixed to the housing; an impeller disposed on an upper portion of the housing; a stator disposed inside the housing; a rotor rotatably supported to the support shaft; and a connecting member inserted in the supporting shaft to rotatably support the rotor and connecting between the rotor and the impeller, thereby reducing the number of parts and simplifying a manufacturing process.

A pump assembly includes a vertical pump arranged in a canister. The vertical pump includes a pump column disposed between a pump head and a pump bowl in an axial direction. The pump is arranged in the pump column and is configured to pump a fluid a column inlet at the pump bowl to a column outlet at the pump head. The pump column is supported so as to be stabilized by at least two damping arms disposed on an outer surface of the pump column, and each damping arm has an support end to support a respective damping arm on an inner surface of the canister in a radial direction perpendicular to the axial direction. Each support end is movable independently from each other support end with respect to the axial direction.

A motorized pump system includes a switched reluctance motor with a motor rotor and a motor stator, and a pump surrounding the switched reluctance motor. The motor rotor is positioned radially inward or outward of the motor stator, and the pump includes a pump rotor integrated with the motor rotor. The pump rotor includes at least one impeller connected to the motor rotor.

An electric submersible pump (ESP) assembly. The ESP assembly comprises an electric motor, a centrifugal pump, and a hybrid magnetic radial bearing, wherein the hybrid magnetic radial bearing is disposed inside the electric motor or disposed inside the centrifugal pump.

A pump out system removes a liquid from a worksite and includes a pump, a power source, a rigid spacer, a coupling, and a flexible discharge hose. The pump moves the liquid from an intake of the pump to an output of the pump in response to receiving power. The power source selectively connects to the pump to provide power to the pump. The rigid spacer connects the power source to the pump and spaces the power source from the submersible pump. The coupling sealingly secures the rigid spacer to the pump and prevents ingress of the liquid into the rigid spacer and a cavity defined by the coupling and the pump. The flexible discharge hose connects to the output of the pump and communicates the liquid from the output of the pump away from the worksite.