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 disclosure provides a magnetically driven pump which including a base, a spacer sleeve, a cover, a stator assembly and a rotor assembly. The base has a first accommodation space. The spacer sleeve is mounted to the base and partially located in the first accommodation space. The spacer sleeve has a second accommodation space not connected to the first accommodation space. The cover has through holes. The cover is mounted to the base, and the through holes are connected to the second accommodation space. The stator assembly is sleeved on the spacer sleeve and located in the first accommodation space. The rotor assembly includes a shaft, an impeller and a magnet assembly. Two ends of the shaft are rotatably disposed on the cover and the spacer sleeve, the shaft is partially located in the second accommodation space, and the impeller and the magnet assembly are fixed on the shaft.

Various aspects of the present disclosure are directed toward apparatuses, systems, and methods that may include a magnetic drive system of a blood pump. The magnetic drive system may include a drive shaft coupled to an impeller, a driven magnet assembly coupled to at least one of the drive shaft and the impeller, and a driving coil assembly configured to drive the driven magnet assembly.

A thin type pump structure includes a pump housing, a rotor assembly, a stator assembly, a flow-guiding plate, and a closing member. The pump housing has a first side defining an open-topped pump chamber having a forward projected shaft and an opposite second side defining an open-bottomed annular recess at an area opposite to and around the pump chamber. The rotor assembly has a pivot hole and is received in the pump chamber with the pivot hole turnably around the shaft. The rotor assembly includes a blade wheel and a magnetic element located behind the blade wheel. The stator assembly is received in the annular recess to horizontally face toward the magnetic element, enabling mutual electromagnetic induction and magnetic field generation between the magnetic element and the stator assembly. The flow-guiding plate covers the pump chamber, and the closing member closes the pump housing from the first side thereof.

An electrical coolant pump, preferably for use as an additional water pump in a vehicle, is characterised in that a radial bearing of the shaft (4) is provided by means of a radial slide bearing (41) lubricated with coolant on the separating element (12) which is disposed between the pump impeller (2) and the rotor (32); a dry-running electric motor (3) having a radially inner stator (31) and a radially outer rotor (32) is accommodated within the motor chamber (13); a shaft seal (5) is disposed between the radial slide bearing (41) and the motor chamber (13); the rotor (32) is formed in a cup shape, the inner surface of which faces the shaft seal (5) and is fixed to the shaft (4) in an axially overlapping manner; the motor chamber (13) has an opening to the atmosphere which is closed by a liquid-tight and vapour-permeable pressure equalising membrane (6); the separating element (12) is configured as a support flange with a separating portion (12a) and an axial projection (12b) into the motor chamber (13), to which the stator (31) is attached; and the control unit (18) is disposed between the separating element (12) and the stator (31) in the axial direction.

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.

An electric water pump provided with a housing that includes a cover. The cover may extend from the sidewall and may be fixed to the volute. The cover may include a main portion, a first protrusion, extending from a first side of the main portion towards the impeller, and a second protrusion extending from a second side of the main portion, opposite the first side, towards the base member. The first and second protrusions may define a first aperture. The second protrusion may define a second aperture that may form a first communication passage. The first communication passage may be configured to receive a portion of the first flow of fluid from a first space, disposed between the impeller and the cover, and expel the same to towards the base member.

A downhole-type device includes an electric machine. The electric machine includes an electrical rotor configured to couple with a device to drive or be driven by the electric machine. An electrical stator surrounds the electric rotor. The electric stator includes a seal configured to isolate stator windings from an outside, downhole environment. An inner surface of the seal and an outer surface of the electric rotor define an annulus exposed to the outside environment. A bearing couples the electric rotor to the electric stator. A lubrication system is fluidically coupled to the downhole-type device. The lubrication system includes a topside pressure pump and a downhole-type distribution manifold configured to be used within a wellbore. The distribution manifold is fluidically connected to the topside pressure pump and the bearing to receive a flow of lubricant from the topside pressure pump.

Disclosed is a rotary pump including a magnetic rotor arranged in a pump housing and having a magnetic rotor plane, which rotor is operatively connected to a drive for conveying a fluid. The drive is a bearingless motor having a stator configured as a bearing stator and drive stator and having a magnetic stator plane, wherein the stator bears a drive coil and a bearing coil lying in the stator plane and/or a drive bearing coil. The rotor is magnetically contactlessly journalled within the stator, wherein an axial height (H) of the rotor is smaller than or equal to half a diameter (D) of the rotor so that the rotor is passively magnetically stabilized by reluctance forces with respect to the magnetic stator plane both against axial displacement and against a tilt from an equilibrium position.

A water pump motor and a water pump are disclosed. The water pump motor includes a stator and a rotor. A through hole is disposed in the rotor along an axial direction of the rotor. A rotation shaft inserted in the through hole. A rotor housing is disposed between the rotor and the stator. At least one shaft sleeve is sleeved on the rotation shaft, disposed in the through hole of the rotor and made of flexible material.