A pump arrangement for a drum or container pump, the pump arrangement including a pump housing; a drive shaft support tube received in the pump housing; and a drive shaft rotatably supported in the drive shaft support tube at a rotor side bearing and at a pump arrangement coupling, wherein the drive shaft runs freely between the rotor side bearing and the pump arrangement coupling, wherein the drive shaft runs through the at least one support ring that is fixed relative to the pump housing and that has an inner diameter that is greater than an outer diameter of the drive shaft and that is arranged between the rotor side bearing and the pump arrangement coupling.

A magnetic pump is provided that includes a magnet can and an impeller that are individually formed, that is capable of easily performing assembling/disassembling, that has high workability during manufacturing or maintenance, and that has high strength in a connection part between the magnet can and the impeller, and to provide a rotary body for the magnetic pump. Particularly, the fitted connection part between the magnet can and the impeller is a spigot ferrule that has a simple structure and that is firmly connectable, and a cutout portion and a convex portion are formed at a part at which an innermost part of a socket and a front end part of a spigot face each other, and the connection strength can be further heightened by twisting and turning the spigot-ferrule part, and the return of a turned state of the spigot-ferrule part is prevented by fitting the restraining member into a gap generated behind the convex portion in the turning direction of the convex portion that has entered the cutout portion and the cutout portion, and therefore the fitted connection part is never loosened.

A water pump with an impeller driven by an electrical machine comprising a housing cap and a volute with an inlet) and an outlet and a boot hosting a stator and a rotor of the electrical machine, wherein the rotor is mounted on a fixed shaft in the water pump having a bushing rotatable mounted on the shaft.

The invention relates to a magnetically-driven pump (1) with a pump housing (3), a housing cover (4) which closes the pump housing (3), and a containment can (5) which has a metal inner shell (6) and a ceramic outer shell (7) on which a flange (8) is formed. The object of the invention is to devise a pump which is improved in comparison with the prior art, which offers a simple and safe structure and makes uncomplicated and rapid manufacture, assembly and maintenance possible. In particular, a safe and energy-efficient pump is to be devised. To this end, the invention proposes that the inner shell (6) be welded to the housing cover (4) and the outer shell (7) be braced against the housing cover (4) by way of a clamping ring (9) on the flange (8).

The present invention is directed to a spa tub (and to a spa chair that includes a spa tub) that has a sprayer with a thermal meter so that an employee does not need to touch or feel the water and/or fluids to gauge the temperature of the water and/or fluids. The spa tub may also have a water pump and/or an air pump assembly that is designed and configured to be mounted to the wall of a basin for providing massage therapy to a user. In addition, the spa tub may additionally have a liner and/or an air dispenser. As a non-limiting embodiment, a spa chair includes a spa tub, a basin, a mounting housing member, and a sprayer with a thermal meter. The spa chair may also include a jet assembly, an air pump assembly a spa base, a gasket or seal, an air dispenser, and/or a liner.

The present invention provides a magnetic pump with a sealing structure, and belongs to the field of mechanical equipment. The magnetic pump includes a bearing housing, a pump cover, an external magnet, an internal magnet, and an isolation sleeve, the bearing housing is connected to the external magnet by using a drive shaft, the external magnet is sleeved outside the isolation sleeve, the isolation sleeve is sleeved outside the internal magnet, an end, distal from the external magnet, of the internal magnet is connected to a pump shaft, a support is disposed between the pump cover and the bearing housing, a sealing apparatus is disposed at a connection between the support and each of the pump cover and the bearing housing, and a magnetic sealing apparatus configured to prevent a medium in the support from leaking is disposed on the drive shaft. The magnetic pump has a plurality of sealing structures, which can completely prevent medium leakage when the isolation sleeve leaks. The magnetic pump has a good sealing effect and is suitable for large-scale industrial application.

Described herein are appliances such as a vacuum cleaners having an air flow passage and a fan assembly provided in the air flow passage. The fan assembly includes (a) a first motor comprising a first rotor, a first stator, and a first rotatable output shaft drivingly connected to the first rotor; and (b) a second motor comprising a second rotor, a second stator, and a second rotatable output shaft drivingly connected to the second rotor. The first rotatable output shaft is driving connected to the second stator; and a fan blade drivingly connected to the second rotatable output shaft. Also described herein are methods of energizing a fan assembly of a portable appliance.

Provided is a water pump including a lower casing, an upper casing coupled to an upper side of the lower casing to form an impeller accommodating space therein by the coupling with the lower casing and having an inlet communicating with the impeller accommodating space and allowing a fluid to be introduced therethrough and an outlet allowing the fluid to be discharged therethrough, an impeller provided in the impeller accommodating space and including an upper plate and a lower plate arranged to be spaced apart from each other vertically and a plurality of blades arranged and coupled between the upper plate and the lower plate, and a rotor coupled to the impeller and rotated together with the impeller, wherein the upper casing has a spacing recess provided on an inner surface corresponding to an outer circumference of the upper plate of the impeller.

A blood flow assist system can include an impeller assembly including an impeller shaft and an impeller on the impeller shaft, a primary flow pathway disposed along an exterior surface of the impeller. The system can include a rotor assembly at a proximal portion of the impeller shaft. A secondary flow pathway can be disposed along a lumen of the impeller shaft. During operation of the blood flow assist system, blood can be pumped proximally along the primary flow pathway and the secondary flow pathway. The system can include a sleeve bearing distal the impeller. The system can include a drive unit having a distal end disposed distal a proximal end of the second impeller. The drive unit comprising a drive magnet and a drive bearing between the drive magnet and the impeller assembly.

The invention relates to a pump assembly, especially of a mechanical seal assembly, for supplying a fluid, especially to a mechanical seal (2a, 2b), comprising exactly one drive (11) comprising a drive shaft (24), a first axial pump (21), which conveys the fluid in the axial direction (X-X) of the drive shaft, a second axial pump (22), which conveys the fluid in the axial direction of the drive shaft, and a radial pump (23), which conveys the fluid in the radial direction (R) of the drive shaft, wherein the first axial pump (21) and the second axial pump (22) are arranged in front of the radial pump (23) in the flow-through direction (B) of the fluid across the pump assembly, and wherein the drive (11) simultaneously drives the first axial pump (21), the second axial pump (22) and the radial pump (23).