Pump motor, with a crankcase, a pump head, and a containment shell, whereby the pump head with the containment shell defines a wet chamber and the containment shell with the crankcase defines a dry chamber, a permanent magnet rotor is rotatably mounted in the wet chamber around an axis, a wound stator and a printed circuit board are arranged in the dry chamber and the printed circuit board is located opposite to the containment shell bottom. The pump motor economically provides for a reliable heat dissipation with an increased heat dissipation capacity, from the printed circuit board into the medium which has to be transported, in the case of a pump motor of an appropriate kind.

A centrifugal electric pump assembly, comprising a wet section, which comprises inside it a liquid and/or solid scale remover substance in a position that at least potentially communicates with the wet section.

At an electric pump, a first gasket is interposed between a stator and a motor housing, and a supporting member, and a second gasket is interposed between the supporting member and a substrate housing. Further, the electric pump has a first snap-fit structure that assembles the stator to the supporting member, a second snap-fit structure that assembles the motor housing the supporting member, and a third snap-fit structure that assembles the substrate housing to the supporting member.

An electric oil pump constructed by integrally combining an electric motor with an oil pump, wherein the electric motor is composed of a motor casing, a drive shaft that is disposed in a motor housing chamber formed inside the motor casing and is rotatably supported, a rotor that is disposed on the drive shaft, and a stator that is located inside the motor housing chamber and is attached to the motor casing. The electric oil pump is equipped with an internal controller that controls application of electric power to the stator so as to cause the drive shaft to be driven to rotate via the rotor.

An axial flow blood pump having a rotor rotatably mounted in a housing. The rotor includes at least two rotor blades having different configurations.

A canned motor pump that includes a pipe-shaped can part which accommodates a rotor, a plurality of supports protruding radially outward from sides of the can part, and a plurality of the split cores each of which is inserted inside a corresponding support of the supports. Each distal end of the split cores extends in a direction toward a corresponding insulator part. A plurality of insulator parts are respectively formed on distal ends of the supports. An annular outer ring surrounds the outer circumference of the insulator parts. The inner circumference of the outer ring adjoins to exposed outermost ends of the split cores. Coils then are wound on the supports to provide a can motor pump with fewer parts and better performance.

A water-cooling device includes a main body having a pump chamber and a heat exchange chamber, which are partitioned from each other by a water room partitioning board. The water room partitioning board has a communication section for communicating the pump chamber with the heat exchange chamber. A pump unit is disposed in the pump chamber. A heat transfer unit is disposed in the heat exchange chamber. A cooling fluid is filled up in the pump chamber and the heat exchange chamber. The water-cooling device has greatly enhanced heat dissipation performance. Moreover, the water-cooling device is free from the problem of overheating of the stator assembly in operation.

The present invention relates to a motor pump (10) free from bearings, cooler and mechanical sealing, more specifically to a hydraulic motor pump, which comprises a housing (14) defined by a first chamber (19) isolated from fluids and a second chamber (17). In the second chamber (17) there is an integral rotor/turbine assembly (11), the rotor and the turbine being induced by magnetic forces of a stator (12), which is located in the first chamber (19). A fluid inlet (15) and a fluid outlet (16) are located at the same end of the motor pump (10), so that most of the fluid impelled into the motor pump (10) is guided directly to the outlet (16) with the aid of a fluid guide (20) located at the front end (24) of the rotor/turbine assembly (11), enabling an increase in the flowrate inside the motor pump (10), thus increasing the yield thereof.

A pump assembly with a stator housing (18), in whose inside a wet-running electric motor with a can (14) is arranged, and with a pump housing (2) connected to the stator housing (18). An annular shaped seal (22) is arranged between the stator housing (18) and a collar (34) of the can (14) on the one hand, and the pump housing (2) on the other hand.

A magnetically driven centrifugal pump has a pump case, an open vane impeller in the pump case, a stuffing box including a stuffing box outer being fixed relative to the pump case and a stuffing box inner threadedly engaged with the stuffing box outer, and a rotor axially fixed and rotatably mounted in the stuffing box inner. Bushings are arranged between the rotor and the stuffing box inner. A drive is fixed relative to the pump case and includes a drive output extending into the rotor. There is a magnetic coupling between the rotor and the drive and a canister fixed to the stuffing box and extending through the magnetic coupling to isolate the rotor from the drive. A rub ring closes the end of the stuffing box inner and constrains the drive output from damaging the canister under catastrophic bearing failure.