In an aspect, a pump is provided and includes a pump housing having a pump inlet and a pump outlet. An impeller is rotatably supported in the pump housing for rotation about an impeller axis, and has an impeller inlet configured for drawing in liquid during rotation of the impeller, and an impeller outlet configured for discharging liquid in a generally radial direction. A diverter is pivotally connected in an impeller outlet receiving chamber in the pump housing. The diverter is movable between a first position in which it provides a first restriction to flow out from the pump housing and a second position in which it provides a second restriction to flow out from the pump housing that is greater than the first restriction. In the first position, the diverter forms at least a portion of a volute around at least a portion of the impeller.

An electric submersible pump (ESP) assembly. The ESP assembly comprises an electric motor, a centrifugal pump mechanically coupled to the electric motor, and a gas handling inverted shroud assembly.

Centrifugal pump systems and related methods are disclosed herein that can shift a best efficiency point of a pump based on one or more operating conditions to operate more efficiently across and/or adjust to a broader range of conditions. Pumps provided for herein can include an adaptive volute in which a geometry of the volute can be adjusted to shift an operating efficiency of the pump. In some embodiments, a height or radial dimension of the adaptive volute can be adjusted based on one or more operating condition. A geometry of the adaptive volute can be adjusted during operation of the pump and/or while an impeller is disposed within the volute. In some embodiments, a first and second collar can be disposed within the adaptive volute. Rotation of the first component can move the second component axially, which can expand or contract an axial dimension of the adaptive volute.

Disclosed is a clothes treating apparatus including a drum configured to receive laundry, a tub in which the drum is built, a main body in which the drum and the tub are disposed, detergent drawer compartments provided in the main body to be withdrawn from or inserted in the main body, a spray nozzle configured to spray washing water to the detergent drawer compartments, a water-collecting container disposed below the tub to receive the washing water, a washing line configured to supply the washing water of the water-collecting container to the spray nozzle, a circulation line configured to supply the washing water of the water-collecting container into the drum, and a flow-path conversion pump configured to receive the washing water from the water-collecting container and supply the washing water selectively to the washing line or the circulation line.

The present disclosure provides a decorative cup. The decorative cup includes a shell. The shell includes a cup body and a base. The cup body includes an accommodating portion and a transparent portion. A cavity is formed in the base. The accommodating portion is disposed in the cavity. The transparent portion is made of a transparent material, and shaped as a polygon prism. The transparent portion may enable light rays to be reflected for multiple times on the cup body because of the polygon prism structure of the transparent portion, so that the cup body looks more crystal clear and more dazzling, thereby greatly improving the ornamental value of the decorative cup.

A centrifugal pump with adaptive pump stages includes an impeller configured to provide kinetic energy to fluid flow through the pump. The impeller has multiple geometric dimensions. The pump includes a diffuser connected to the impeller that is configured to convert the kinetic energy provided by the impeller into static pressure energy to flow the fluid through the pump. The pump includes an adaptive material attached to the impeller that is configured to modify, during operation of the pump, a geometric dimension to modify fluid flow through the pump.

A centrifugal pump with adaptive pump stages includes an impeller configured to provide kinetic energy to fluid flow through the pump. The impeller has multiple geometric dimensions. The pump includes a diffuser connected to the impeller that is configured to convert the kinetic energy provided by the impeller into static pressure energy to flow the fluid through the pump. The pump includes an adaptive material attached to the impeller that is configured to modify, during operation of the pump, a geometric dimension to modify fluid flow through the pump.

A water pump includes: a body portion including a housing where an inlet port and a discharge port, an impeller accommodated inside the housing and introducing or discharging the cooling water, a rotation shaft coupled to the impeller and rotating the impeller, and a cooling water flow rate control unit arranged above the impeller and operating to selectively open or close the discharge port; a cylinder portion provided above the cooling water flow rate control unit and formed therein a hydraulic space accommodating cooling water that applies pressure to the cooling water flow rate control unit; a piston located inside the hydraulic space and pressurizing the cooling water present inside the hydraulic space; a driving unit coupled to a side surface of the cylinder portion; and a lock preventing member located at an inner surface of the cylinder portion.

A compressor includes an impeller, a diffuser passage having a diffuser vane therein, and a variable geometry diffuser ring positioned between the impeller and the diffuser vane with respect to a flow of a refrigerant through the compressor. The compressor also includes an actuator configured to move the variable geometry diffuser ring in a direction transverse to the flow of the refrigerant, and between a plurality of ring positions including a fully retracted ring position in which the variable geometry diffuser ring does not block the flow of the refrigerant, and at least one protruded ring position in which the variable geometry diffuser ring adjusts an angle of the flow of the refrigerant upstream of the diffuser vane.

A centrifugal pump with adaptive pump stages includes an impeller configured to provide kinetic energy to fluid flow through the pump. The impeller has multiple geometric dimensions. The pump includes a diffuser connected to the impeller that is configured to convert the kinetic energy provided by the impeller into static pressure energy to flow the fluid through the pump. The pump includes an adaptive material attached to the impeller that is configured to modify, during operation of the pump, a geometric dimension to modify fluid flow through the pump.