An energy-conserving fluid pump is an apparatus used to transport low viscosity fluids like water and fuel without experiencing cavitation, recirculation, nor motor locking while also conserving energy. The apparatus includes a fluid diffuser, a fluid densifier, a convergent housing, and a strut assembly. The fluid diffuser improves the efficiency of the apparatus by expanding the fluid inflow and maintaining a fluid pressure buildup. The fluid densifier shears the incoming fluid flow from the fluid diffuser and increases the fluid outflow pressure. The convergent housing encloses the fluid diffuser and the fluid densifier while facilitating the outflow of the pressurized fluid without the loss of fluid pressure nor cavitation. In addition, the convergent housing facilitates the transfer of torque to the fluid diffuser for the operation of the apparatus. The strut assembly keeps the fluid densifier stationary while enabling the rotation of the convergent housing and/or the fluid diffuser.

An impeller for pumping fluid that comprises discharge flow paths that allow high pressure liquid to be used to flush out low pressure gas that can accumulate within the internal structure of the impeller. The impeller comprises transition regions, vanes, and at least one discharge flow path. The vanes are rotational about a central axis. The transition regions and the plurality of vanes have a high pressure flow path and a low pressure flow path. The at least one discharge flow path is in fluid communication with a section of the low pressure flow path of at least one of the transition region(s) and the vane(s).

A liquid heating pump includes an impeller chamber having an impeller, which can be rotatably driven, and a diffusor chamber and/or pressure chamber arranged axially downstream in the flow direction and having a stationary diffusor. A heating device is associated with the diffusor and/or pressure chamber. The diffusor has a main body, in particular in the shape of a circular cylinder. The main body has a front wall on which a guide blade portion is arranged which axially protrudes in a direction of the impeller into a liquid ejection region of the impeller arranged around an outer periphery of the impeller and which extends away from the liquid ejection region outwardly toward an axial outer casing of the main body, which axial outer casing is arranged radially further outwardly than the liquid ejection region of the impeller.

The present disclosure is of a jet pump system, and reverse power generation system and other desirable applications consisting of an impeller with inlet vortex vanes and outlet vortex vanes. The inlet vortex vane induces rotational movement on mass entering the impeller inlet. The outlet vortex vanes remove swirl from mass exiting the impeller outlet. Embodiments include a jet pump system involving a pulley and belt which can allow for obstruction free movement of mass. In another embodiment the impeller is connected via an electromagnetic connection. In another embodiment the impeller acts as a rim-driven generator of electrical power. In another embodiment the drive pulley is a centrifugal clutch or uses a chain sprocket or tandem jet system in series.

An electrical submersible pump has a stack of diffusers within the housing, each of the diffusers having a conical upper shoulder and a conical lower shoulder. The lower shoulder of each of the diffusers is in abutment with the upper shoulder of an adjacent one of the diffusers. The upper and lower shoulders of each of the diffusers slope downward and outward relative to the axis. Impeller hubs have conical upper and lower ends. At least some of the upper ends of the hubs abut and transfer up thrust to the lower end of an adjacent one of the hubs. At least some of the lower ends of the hubs abut and transfer down thrust to the upper end of an adjacent one of the hubs.

A component of a rotary machine formed from a blank, the component includes a center, a boundary surface, and at least one inner passage extending from the center up to the boundary surface and being at least partly closed. The inner passage is formed by a first subtractive machining in which a part of the passage that at least includes an opening of the passage into the boundary surface as well as a cut-out in the top surface is manufactured by machining production, and subsequently the passage is completed by a build-up production on the blank.

The present disclosure provides a fluid transportation device. The fluid transportation device includes a casing and a fluid driving member. The casing has a first shell and a second shell divided along an axial direction. The first shell and the second shell are assembled to be opposite to each other. The casing has an accommodating space, a first transporting portion, and a second transporting portion. The first transporting portion and the second transporting portion are in communication with the accommodating space. The fluid driving member has a first fan wheel, a second fan wheel, and a motor. The first fan wheel, the second fan wheel, and the motor are disposed in the accommodating space. The motor is configured to drive the first fan wheel and the second fan wheel to rotate.

A method of manufacturing a component of a rotary machine, the component has at least one inner passage that extends from a center up to a boundary surface of the component and is at least partly closed, and a blank is provided that includes the boundary surface and a top surface. The Method includes a first subtractive machining step that is carried out in which a part of the passage that at least includes an opening of the passage into the boundary surface as well as a cut-out in the top surface are manufactured by machining production, and subsequently the passage is completed by build-up production on the blank.

An impeller includes a disk, a long blade that is disposed at an interval in a circumferential direction on a disk surface on a first side in an axial direction of the disk, and that reaches an outer peripheral edge of the disk, and a short blade that is disposed between the long blades adjacent to each other on the disk surface, and that reaches the outer peripheral edge. A circumferential length of the short blade gradually increases as the short blade faces outward in the radial direction, and a circumferential length of the long blade in the outer peripheral edge is smaller than the circumferential length of the short blade in the outer peripheral edge.

A fluid pump assembly is provided. The pump has a pair of units magnetically coupled to each other. The first unit contains a drive motor and a magnetic assembly. The second unit contains a magnetic assembly and a blade of a propeller/impeller for imparting movement to a fluid. As the first unit is activated by the drive motor, a magnetic flux is created which in turn rotates the magnetic assembly in the second unit, driving the blade.