F04D13/024

MULTI-PUMP APPARATUS OF COOLING SYSTEM
20220170467 · 2022-06-02 ·

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.

Multi-pump apparatus of cooling system
11739756 · 2023-08-29 · ·

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.

Thermal Barrier
20220154730 · 2022-05-19 ·

A pump arrangement including a magnetic clutch pump arrangement, the pump arrangement including an inner chamber formed by a housing arrangement, a separating can which hermetically seals a chamber enclosed by it with respect to the inner chamber, an impeller shaft that can be driven in rotation about an axis of rotation, an impeller arranged on one end of the impeller shaft, an inner rotor arranged on the other end of the impeller shaft, a drive device, a drive shaft that can be driven in rotation about the axis of rotation by the drive device, and an outer rotor arranged on the drive shaft and cooperating with the inner rotor. The outer rotor includes a first carrier element and a second carrier element connected to the first carrier element. The first carrier element includes a thermal barrier device.

Balancing axial thrust in submersible well pumps

A first fluid rotor that has a first fluid intake end and a first fluid discharge end. The first fluid rotor includes a shaft and an impeller. A second fluid rotor that has a second fluid intake end and a second fluid discharge end. The second fluid rotor is rotatably coupled to the first fluid rotor to rotate in unison with the first fluid rotor along a shared rotational axis. The first fluid intake end and the second fluid intake end are facing opposite directions. The second fluid rotor includes a second shaft and a second impeller. A first fluid stator surrounds the first fluid rotor. The first fluid stator is aligned along the rotational axis. The first fluid rotor and the first fluid stator form a first fluid stage. A second fluid stator surrounds the second fluid rotor. The second fluid stator is aligned along the rotational axis. The second fluid stator and the second fluid rotor form a second fluid stage. A flow crossover sub is positioned between the first fluid stage and the second fluid stage. The flow crossover sub defines flow passages that fluidically connect the first fluid stage and the second fluid stage. An outer housing surrounds the first fluid stator, the second fluid stator, and the flow crossover sub.

Pump assemblies configured for drive and pump end interchangeability

A pump assembly mounts on a universal adapter having a back end attached to a motor, a receiving area, an outer magnet assembly rotatable around the receiving area by a motor, and a forward mounting plate surrounding the forward receiving area and having mounting features for attachment to the back cover of each of a variety of pump assemblies. The pump assembly includes a casing having an inlet and an outlet. A back cover attached to the casing has mounting features for attachment to the mounting features of the universal adapter. A containment shell includes a cup for positioning in the receiving area. An inner magnet assembly is positioned in the cup is rotatable by magnetic coupling to the outer magnet assembly through the cup. An impeller is rotatable within the casing by the inner magnet assembly to pump fluid from the inlet to the outlet.

OPTIMIZING PUMPING OF VARIABLE VISCOSITIES VIA MICROTEXTURED MINIATURIZED TESLA PUMP
20210363997 · 2021-11-25 ·

An integrated flow source is a limiting factor in numerous microfluidic applications. In addition to precise gradients and controlling molecular transports, a built-in source of stable and accurate flow can enable novel shear stress modulations for long-term cell culturing studies. The Tesla turbine, when used as a pump on the microfluidic regime, produces stable and accurate fluid gradients by utilizing laminar flow between its rotating discs Utilizing a stereolithography based 3D printer, a tesla pump (Ø10 cm) and associated housing capable of driving a microfluidic gradient is provided having a printed rotor surface topology of the pump in order to enhance pumping of biological fluids like blood at elevated viscosities. The surface topology is tuned via 3D pixilation, and this modulation completely recovered the pressure loss between pumping water at 1 cP versus glycerol solution at 3 cP. As a result, increased fluid viscosities, and even Non-Newtonian viscosities, can be used.

FOOT SPA WITH DISPOSABLE PUMP
20210361527 · 2021-11-25 · ·

The foot spa has a rotating drive hub and a pump. The hub has North and South pole domains encircling a rotation axis in alternating relation. The pump includes a housing and an impeller, the housing having a pair of sides and defining: a cavity having a center and a periphery; an intake that communicates with the cavity center; and one or more ports communicating with the periphery. The impeller is mounted in the cavity and: defines blades which are adapted, upon rotation of the impeller in the cavity, to draw water through the intake and eject water through the one or more ports; and includes a portion that is ferromagnetic and a portion that is not ferromagnetic, the portions: being adapted such that rotation of the drive hub causes rotation of the impeller and abutting one another, one being axially displaced from the other.

Impeller for an implantable, vascular support system

An impeller (1) for an implantable vascular support system (2) is provided. The impeller includes an impeller body (3) having a first longitudinal portion (4) and a second longitudinal portion (5) forming a first inner rotor (12) having at least one magnet encapsulated in the second longitudinal portion (5). At least one blade (6) formed in the first longitudinal portion (4) is configured to axially convey a fluid upon rotation. A second outer rotor (13) extends axially and includes at least one magnet. The first rotor (12) and the second rotor (13) form a magnetic coupling (14). The magnets of the first and second rotor being arranged to partially axially overlap with an axial offset and are entirely radially offset.

Magnetic coupling suspension pump

A magnetic coupling suspension pump includes a stator body and a rotor. The stator body includes a magnetic suspension stator assembly and a magnetic coupler stator assembly; the rotor includes a magnetic suspension rotor assembly and a magnetic coupler rotor assembly; the magnetic suspension stator assembly and the magnetic suspension rotor assembly constitute a magnetic suspension assembly, and the magnetic suspension assembly is configured to generate radial uni-polar magnetic poles and magnetic fields arranged along a circumferential direction, resulting in that the rotor suspends; and the magnetic coupler stator assembly and the magnetic coupler rotor assembly constitute a magnetic coupler assembly, and the magnetic coupler assembly is configured to generate radial non-zero even number of periodic magnetic poles and magnetic fields arranged along the circumferential direction, resulting in that the rotor rotates.

Magnetic drive and hybrid pump including the same
11746790 · 2023-09-05 · ·

A hybrid pump includes an impeller, a magnetic drive configured to control rotation of the impeller, a drive shaft combined with the magnetic drive and a motor. The drive shaft rotates in response to rotation of an axis of the motor, the magnetic drive rotates when the drive shaft rotates, the impeller rotates in response to rotation of the magnetic drive, a drive body of the magnetic drive is formed of plastic, and the drive shaft is formed of metal.