The invention relates to a pump impeller for a radial pump with a carrier plate comprising an intake side and a rear side situated opposite the intake side, a blading being provided on the intake side for conveying a medium to be pumped, characterized in that, on the rear side of the carrier plate, at least one flow profile is situated which is configured and formed to reduce at least a difference between a pressure-induced balance of forces on the carrier plate and on a cover plate in the case of a rotation of the pump impeller in a rotational direction (DR).

A pump comprising a volute housing, a rotatable shaft, and an impeller. The volute housing comprises a volute cavity side wall, an upper cylindrical wall, and an upper wall. The upper cylindrical wall extends upwardly from an upper perimeter edge and includes an upper recessed notch formed therein. The upper wall extends radially inwardly from the upper cylindrical wall. The rotatable impeller is operatively coupled to the rotatable shaft and comprises a top cylindrical wall and a top flange. The top cylindrical wall extends upwardly from a top perimeter edge of the top flange and includes a top recessed notch formed therein. The top cylindrical wall is separated from the upper cylindrical wall of the volute housing by an upper annular gap. The top recessed notch of the rotatable impeller and the upper recessed notch of the volute housing may be slot-shaped or wedge-shaped.

The present disclosure relates to the technical field of low-temperature pumps, in particular to a permanent magnet leakage-free low-temperature pump. The permanent magnet leakage-free low-temperature pump comprises a pump body, wherein a pump impeller is arranged in the pump body, the pump impeller and a permanent magnet motor are of a coaxial structure, no coupler device is arranged between the pump impeller and the permanent magnet motor, a motor barrel is arranged in the pump body and connected with an external power source through a wiring device to work, a first flange plate is arranged at the position, located at the front end, of the outer wall of the pump body, and a second flange plate is arranged at the position, located at the rear end, of the outer wall of the pump body.

The disclosure relates to a high-speed radial fan and to a rotor assembly (10) for a high-speed radial fan, comprising a bearing tube (20) which is axially open in the interior and in which a shaft (40) carrying a fan wheel (30) is mounted with a rotor (50), wherein the rotor (50) of the rotor assembly (10) is mounted in a cylindrical separating can (3).

A turbomachine includes a housing having an inlet and an outlet. A shaft is rotationally disposed in the housing. The shaft is rotatable about a longitudinal axis. An impeller is coupled to the shaft between the inlet and the outlet and rotates with the shaft. The impeller includes a single impeller inlet and an impeller outlet, a first set of vanes disposed on a first side of the impeller, and a second set of vanes disposed on a second side of the impeller. A passage is formed through a thickness of the impeller. The passage facilitates transmission of fluid from the first side of the impeller to the second side of the impeller such that fluid is supplied to the first set of vanes and the second set of vanes via the single impeller inlet. Transmission of fluid through the impeller reduces net axial thrust imparted to at least one of the impeller and the shaft.

A centrifugal pump which includes a tubular structure which extends into an eye of an impeller and which directs a medium to be pumped into the eye, and wherein an axially extending annular cylindrical sealing clearance is formed between opposing surfaces of the impeller and the structure.

Fuel pump for an aircraft engine, comprising an inducer and a centrifugal impeller fixed together and having an axis of rotation, an annular space spacing axially the inducer and the impeller, and two contact portions between the inducer and the impeller disposed radially outside the annular space, a first plenum chamber and a second plenum chamber, in which the inducer and the impeller are spaced axially from each other, each being disposed between the two contact portions, the plenum chambers being symmetrical to each other with respect to the axis of rotation and in fluid communication with the annular space, the centrifugal impeller comprising a plurality of axial balancing holes distributed about the axis of rotation and opening out into the annular space at one end, and into a downstream space of the impeller at the other end.

The disclosure relates to a high-speed radial fan and to a rotor assembly (10) for a high-speed radial fan, comprising a bearing tube (20) which is axially open in the interior and in which a shaft (40) carrying a fan wheel (30) is mounted with a rotor (50), wherein the rotor (50) of the rotor assembly (10) is mounted in a cylindrical separating can (3).

A centrifugal pump includes an impeller that is rotatable about a rotational axis. The impeller includes impeller vanes disposed between a base plate and a shroud. The shroud outer surface includes recessed pump out vanes. For each pump out vane, the ratio R1 of the vane outer diameter to the shroud outer diameter is in a range of 0.8 to 0.98, the number of vanes N is in a range of 5 to 9, the ratio R2 of the width of the pump out vane to the shroud outer diameter is in a range of 0.02 to 0.04 and the pump out vane has a square leading edge profile with a square or chamfered trailing edge profile.

A pump for liquids is provided, comprising a pump chamber in which a bucket wheel is mounted on a bearing so that it can rotate, and an electric motor with a stator and a rotor. The stator has stator laminations and coils, and is coated with plastic in some parts and an electric/electronic activation device. The pump is intended to have a long service life and at the same time require as little installation space as possible. This is achieved by the stator laminations of the stator being at least in part electroplated.