An apparatus for cleaning nets underwater formed from a propeller housing with a centrally disposed axis with a plurality of blades extending therefrom. An outer perimeter ring secured to an outer tip of each blade with a plurality of knuckles secured to the outer perimeter ring. Each knuckle including a curved surface constructed and arranged to be forcefully presented to the aquaculture net upon rotation of said blades for removal of growth by impact and shaking of the aquaculture net. An elastomeric hub prevents spike loads.

Example implementations relate to a method and system for pumping fluid with a pump assembly to cool waste-heat producing system of an apparatus. The pump assembly includes a first housing, a rotor assembly, a stator assembly, a second housing, an outlet connection port coupled to the second housing, and a guide vane insert. The first housing includes a first bore and first inlet guide vanes (IGVs) coupled to inlet of the first bore. The rotor assembly including an impeller, is disposed in the first bore. The stator assembly including a coil, is mounted around a portion of the first housing. The second housing has a second bore fluidically coupled to the first bore, and first outlet guide vanes (OGVs) coupled at an entrance of the second bore. The guide vane insert including second OGVs, is disposed within the outlet connection port and fluidically coupled to outlet of the second bore.

Blood pump assemblies and methods of manufacturing and operating blood pump assemblies are provided. The blood pump assembly includes a pump and an impeller blade rotatably coupled to the pump. The blood pump assembly also includes a pump housing component sized for passage through a body lumen and coupled to the pump. The pump housing component includes a peripheral wall extending about a rotation axis of the impeller blade. The peripheral wall includes an inner peripheral wall surface and an outer peripheral wall surface. The peripheral wall also includes one or more blood exhaust apertures. Each blood exhaust aperture in the one or more blood exhaust apertures is defined by an inner aperture edge and an outer aperture edge. Each inner aperture edge is chamfered between the inner peripheral wall surface and the outer peripheral wall surface.

An axial flux motor for an appliance includes a stator yoke. A plurality of stator teeth extend from the stator yoke in an axial direction and are positioned about a central rotational axis. Each stator tooth includes a plurality of laminations that extend in the axial direction and form a “T” shaped member. The plurality of stator teeth are overmolded with a polymeric material to define a plurality of axial stator poles. At least one winding extends around the plurality of axial stator poles. A ring-shaped rotor rotates about the central rotational axis of the stator yoke. The rotor is positioned proximate an axial end of the plurality of axial stator poles.

A multi-pump apparatus of a work vehicle may include a main housing, a motor shaft, a water pump, and a refrigerant pump. The main housing has a first housing portion and a second housing portion coupled to the first housing portion. The motor shaft is positioned through the first housing portion. The water pump is coupled to the first housing portion and is operable to pump coolant. The water pump is driven by the motor shaft. The refrigerant pump is coupled to the second housing portion and is operable to pump refrigerant. The refrigerant pump is also driven by the motor shaft.

An electric oil pump includes a motor including a shaft, a pump driven with the shaft therebetween, and an inverter fixed to a rear side of the motor. The motor includes a motor housing. The inverter includes an inverter housing including a circuit board accommodation portion. The inverter housing includes bus bars that connect coil ends inside the circuit board accommodation portion and extending from the motor and a circuit board to each other. The motor housing includes a bottomed cylindrical shape including a bottom portion on the inverter side. The inverter housing includes a fixed portion that is fixed to the bottom portion. The fixed portion is fixed to the bottom portion using fixing members, and the fixing members are disposed within a region surrounded by bus bars.

A multi-pump apparatus of a work vehicle may include a main housing, a motor shaft, a water pump, and a refrigerant pump. The main housing has a first housing portion and a second housing portion coupled to the first housing portion. The motor shaft is positioned through the first housing portion. The water pump is coupled to the first housing portion and is operable to pump coolant. The water pump is driven by the motor shaft. The refrigerant pump is coupled to the second housing portion and is operable to pump refrigerant. The refrigerant pump is also driven by the motor shaft.

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 present invention relates to improving the efficiency of a helical fan/pump/propeller/turbine such as is described in PCT/NZ2018/050010. Further to the discovery that specific longitudinal limits are critical to define the first opening in relation to the helical fan/pump/propeller/turbine, it was found that certain lateral limits are also critical. Thus the configuration of the first opening and the helical blade cooperate according to both longitudinal and lateral limits to improve results. This was found to be the case in many applications whether the rotor is mechanically rotated or rotated by an external energy such as wind. In fact, common features such as this can enable the invention to switch between applications in some cases. The present invention also relates to a second opening longitudinally offset from the intake opening and an elongate stator extending from the rotor that is shaped according to the desired flow path

The invention relates to a fluid pump device, in particular for the medical application, with a compressible pump housing and rotor, as well as with an actuation means which runs in the sleeve and on whose end the fluid pump is arranged. In order to utilize all possibilities of a space-saving arrangement of the respective pump housing of the rotor, which is compressible per se, and as the case may be, a bearing arrangement, the mentioned elements are displaceable to one another in the axial direction compared to an operation position. In particular these elements may be end-configured by way of an axial movement of the drive shaft after the assembly.