Abstract: In a thruster for a vessel including a hull, the thruster comprises at least one tunnel element and at least one thruster unit. The tunnel element includes at least a part of a through tunnel in the hull when arranged in the hull. The at least one thruster unit and the at least one tunnel element include cooperating fastening devices for detachably fixing the at least one thruster unit in the at least one tunnel element such that the at least one thruster unit is configured to be passed through the tunnel and mounted to the at least one tunnel element, or demounted from the at least one tunnel element and passed out of the tunnel. A method for mounting and demounting a thruster in a tunnel element includes a tunnel element arranged in the vessel of a hull.

Abstract: A cam ring fluid machine, a rotary cam ring fluid machine has a casing, a flange in the casing, a stator in the casing, a rotor cam ring in the stator, a fixed axis in the rotor cam ring, and a vane in the vane groove of the fixed axis. A fluid chamber is formed with the inner circumferential surface of the rotor cam ring, the outer circumferential surface of the fixed axis, the vane, and the flange. When the rotor cam ring rotates, the volume of the fluid chamber increases or decreases.

Abstract: A thrust generating apparatus is provided under water and configured to generate thrust by ejecting the water. A rotor main body includes: a first member including a side surface and outer peripheral surface which are opposed to a first water lubricated bearing; a second member including a side surface and outer peripheral surface which are opposed to a second water lubricated bearing; and a third member including a supporting surface contacting an inner peripheral surface of a rotor core. The first to third members are fixed to one another so that each member is detachable.

Abstract: A turbo type centrifugal pump is provided in which an angular oscillator is angularly oscillated so that fluid in a radial through hole receives centrifugal force. The angular oscillator is used in combination with a resonance oscillation motor that generates angular oscillation. The resonance oscillation motor is incorporated in the pump so that the pump structure and the drive mechanism are integrated. This reduces the size of the pump. Since the angular oscillation is a reciprocating rotation within an oscillation range less than 360°, a suction pipe can be connected to the radial through hole used in the angular oscillation. This eliminates the necessity for providing a shielding structure.

Abstract: An axial-flow blood pump for pumping blood includes a substantially cylindrical outer enclosure. A tubular housing concentric with and located within the outer enclosure has at one end an inlet and at an opposite end an outlet. A motor stator is concentric with and located between the outer enclosure and the tubular housing. An impeller is concentric with and located within the tubular housing. The impeller is suspended in operation by a combination of passive magnetic forces between magnets within the impeller or magnetized regions of the impeller and the motor stator and hydrodynamic thrust forces generated as blood flows between the tubular housing and a plurality of hydrodynamic thrust bearing surfaces located on the impeller. A volute may be in fluid-tight connection with the outlet of the tubular housing for receiving blood in the axial direction and directing blood in a direction normal to the axial direction.

Abstract: Disclosed herein are an armature for fuel pumps and a manufacturing method thereof, in which a polymer coating film is formed on an armature core such that the armature has corrosion resistance to an alcohol fuel and to a highly corrosive fuel.

Abstract: A compressor is provided that includes a hermetically sealed container; a stator fixedly installed within the hermetically sealed container; a first rotary member that rotates, within the stator, around a first rotary shaft that extends concentrically with a center of the stator by a rotating electromagnetic field of the stator, and including first and second covers fixed to upper and lower parts thereof, respectively; a second rotary member that compresses a refrigerant in a compression space formed between the first and second rotary members while rotating, within the first rotary member, around a second rotary shaft; a vane that transmits the rotational force to the second rotary member from the first rotary member, and partitions the compression space into suction and compression regions; and first and second bearings fixed inside of the hermetically sealed container that rotatably support the first and second rotary members in an axial direction.

Abstract: A cam ring fluid machine, a rotary cam ring fluid machine has a casing, a flange in the casing, a stator in the casing, a rotor cam ring in the stator, a fixed axis in the rotor cam ring, and a vane in the vane groove of the fixed axis. A fluid chamber is formed with the inner circumferential surface of the rotor cam ring, the outer circumferential surface of the fixed axis, the vane, and the flange. When the rotor cam ring rotates, the volume of the fluid chamber increases or decreases.

Abstract: Disclosed herein is a switched reluctance motor including: a rotor part including a rotor core of which a shaft is fixedly coupled to a central portion and a plurality of rotor poles protruding from the rotor core; a stator part including a stator yoke rotatably receiving the rotor part therein and a plurality of stator salient poles protruding from the stator yoke so as to face the rotor poles; and auxiliary rotor poles coupled to outer portions of the rotor poles to rotate integrally with the rotor part.

Abstract: An involute jet pump includes a spiral blade, a permanent magnet cylinder rotor having a plurality of magnetic poles and a stator armature. The rotor is a hollow ring body and fastened at an outside of the spiral blade. Magnetic fields of adjoined magnetic poles are different. The stator armature is disposed at an outside of the rotor. The stator coil has rotating magnetic field after electrifying, and the magnetic field of the stator can be electrically modulated. The rotor drives the spiral blade for rotating due to modulated rotating magnetic field of the stator. The rotor embedded with the spiral blade is placed inside the stator armature. The whole volume of the involute jet pump can be effectively reduced. A magnetic field induction generated between the rotor and the stator drives the rotor embedded with the spiral blade for rotating.

Abstract: A fan module assembly includes at least one a rotatable fan (38) having blades (39) with tips of blades being joined by an annular fan band (42). An electrically conductive squirrel cage (46) is associated with the fan band to rotate therewith. Flux receiving structure (48) is associated with the fan band. A shroud (40) has a shaft (54) with the fan being associated with the shaft so as to rotate about the shaft and with respect to the shroud. Control structure (52) is mounted stationary with respect to the shroud generally adjacent to a portion of the fan band. The control structure is constructed and arranged to generate a changing magnetic field, generally at the radius of the fan band, which interacts with the flux receiving structure and the squirrel cage to cause the fan to be driven by tangential force.

Abstract: A gerotor pump includes an inner ring and an outer ring. The inner ring is rotateable about an axis, where the inner ring has an outer diameter contact surface. The outer ring has an inner diameter contact surface that defines a central opening. The central opening receives the inner ring, and a portion of the inner diameter contact surface engages a portion of the outer diameter contact surface of the inner ring. A motor including a rotor and a stator that surrounds the rotor is included. The rotor surrounds the outer ring and exerts a driving force on the outer ring such that the outer ring rotates about the inner ring. The inner diameter contact surface of the outer ring and the outer diameter contact surface of the inner ring create a plurality of chambers. Rotation between the inner ring and the outer ring expand and contract the chambers to expel fluid from the gerotor pump.

Abstract: An axial flow pump (10) is presented which includes a housing (1) with an inlet (2) and outlet (3) and a magnetically active rotor (5) in the housing which is provided with a passage (6) in the interior and with at least one spiral-shaped vane (7) in the passage, wherein the pitch of the vane (7) varies in the axial direction. The axial flow pump (10) furthermore includes an electromagnetic drive (4, 8) with a stator (8) which is arranged at the housing and cooperates with a magnetically active rotor.

Abstract: A thrust piston pump apparatus PM1 can be driven by an electric motor 110 and is provided with a pump housing 120, a reciprocating piston 130 assembled into the pump housing 120, and a motion conversion mechanism 40 provided between the reciprocating piston 130 and a rotor 113 of the electric motor 110. In the electric motor 110, a tubular rotor 113 is disposed in a stator (magnet 112), and a cylinder portion 121A of the pump housing 120 is coaxially housed in the rotor 113. The reciprocating piston 130 is assembled into the cylinder portion 121A of the pump housing 120 in such a manner as to be able to reciprocate along a cylinder axis. The motion conversion mechanism 140 converts a rotary motion of the rotor 113 of the electric motor 110 in relation to the pump housing 120 and the reciprocating piston 130 to a reciprocating motion of the reciprocating piston 130.

Abstract: A rim driven electrical machine for interaction with a flow of water, comprising: a rotor mounted within a housing, the rotor including at least one circumferential conductor and a central passageway, the central passageway for receiving at least one blade arrangement for rotational interaction with a fluid within the central passageway, and; a stator supported by the housing and arranged circumferentially around the rotor, the stator including windings for providing a travelling electromagnetic wave for interaction with the at least one circumferential electrical conductor of the rotor, wherein the stator extends only partially around the circumference of the rotor so as to have a first end and a second end separated by an arcuate angle.

Abstract: In order to optimize the clearances between both end surfaces of a sleeve 5 and each of the end surfaces of the fixed bodies 3 and 5, respectively, magnetic forces of repulsion being caused by each of the permanent magnets 3a, 5b, 5c and 8a is adjusted. At this time, by adjusting each of the distances between the permanent magnets 3a, 5b, 5c, 8a, respectively, by adjusting the quantity of the adjustment rings 9, the magnetic force of repulsion being caused by each of the permanent magnets 3a, 5b, 5c and 8a is adjusted.

Abstract: The invention relates to a rotor pump having an internally toothed outer ring and an externally toothed inner ring which is mounted therein and intermeshes therewith, wherein the outer ring and the inner ring are arranged axis-parallel to one another, and the axes of the outer ring and of the inner ring are at a distance from one another, and the outer ring is connected to a hollow shaft motor with a stator which is fitted with windings, and to a rotor which is rotatably mounted therein, characterized in that the outer ring forms the rotor of the hollow shaft motor.

Abstract: An axial flow fan unit includes a first and a second axial flow fan. The first axial flow fan includes a first motor, a plurality of first lead lines connected to the first motor, a first impeller rotatable about a center axis by the first motor, and a first housing arranged to enclose the first motor and the first impeller, wherein the first housing has a first recess portion extending from an inside to an outside of the first housing. Likewise, the second axial flow fan includes a second motor, a plurality of second lead lines, a second impeller, and the second housing, wherein the second housing has a second recess portion extending from an inside to an outside of the second housing. The first and the second lead lines are led out from the first and the second housings through the first and the second recesses, respectively. Further, the first recess portion is deviated relative to or partially overlapped with the second recess portion along a circumferential direction.

Abstract: The invention relates to a cooling apparatus for an electric component such as a CPU, a memory or power semiconductor, such as transistors or LEDs, or a processor. The cooling apparatus comprises a heatsink, an impeller that coaxially encloses the heatsink, and a drive motor for the impeller. The heatsink takes the form of a stationary hub having a base for introducing heat from the electronic component that is to be cooled, the hub widening towards the base. Cooling fins are thermally coupled to the hub, the cooling fins being given a spiral-like curve similar to the blades of the impeller. Due to the special design of the hub and the cooling fins as well as the use of a radial flux motor, a highly efficient, particularly compact cooling apparatus can be realized.

Abstract: An electric motor for driving an inertia separator is provided, including a stator and a rotor. The stator is arranged in a stator space enclosed by a stator housing. The rotor is arranged in a rotor space concentrically with the stator with regard to an axis of rotation. A ring gap is formed radially between the rotor and the stator such that it separates the stator space from the rotor space. A housing bottom includes a nonmagnetic section extending through the ring gap. An inertia separator includes a second rotor operably connected to the rotor. A separator housing encloses a void containing the second rotor, wherein the housing bottom is arranged on the separator housing on a side facing the electric motor such that the nonmagnetic section of the housing bottom defines an opening in the rotor space that is oriented towards the void.

Abstract: According to an aspect of the present invention, an electric pump includes: a housing; an outer rotor; an inner rotor; a base member facing one side surface of the outer rotor and one side surface of the inner rotor; a side plate member, having a facing surface facing the other side surface of the outer rotor and the other side surface of the inner rotor and a non-facing surface opposed to the facing surface; a shaft; a suction port; a discharge port; a negative pressure applied region; a positive pressure applied region; and a relief valve, discharging the fluid from the positive pressure applied region to a non-facing surface side of the side plate member when a pressure applied at the positive pressure applied region exceeds a predetermined value.

Abstract: An axial-flow blood pump for pumping blood includes a substantially cylindrical outer enclosure. A tubular housing concentric with and located within the outer enclosure has at one end an inlet and at an opposite end an outlet. A motor stator is concentric with and located between the outer enclosure and the tubular housing. An impeller is concentric with and located within the tubular housing. The impeller is suspended in operation by a combination of passive magnetic forces between magnets within the impeller or magnetized regions of the impeller and the motor stator and hydrodynamic thrust forces generated as blood flows between the tubular housing and a plurality of hydrodynamic thrust bearing surfaces located on the impeller. A volute may be in fluid-tight connection with the outlet of the tubular housing for receiving blood in the axial direction and directing blood in a direction normal to the axial direction.

Abstract: A blood pump comprises a pump housing; a plurality of rotors positioned in said housing, each rotor comprising an impeller having a hydrodynamic surface for pumping blood; and a motor including a plurality of magnetic poles carried by each impeller, having motor stators, each including electrically conductive coils located adjacent to or within the housing. At least one of the rotors is adopted to rotate clockwise, and at least one of rotors is adopted to rotate counterclockwise. By this means, stator or stationary blades between the rotors may not be needed.

Abstract: A compressor eliminates sliding contacts between a cylinder (132) and a roller (142) to minimize the mixing of lubricating oil into refrigerant, and is structured to evenly distributing lubricating oil over sliding contact portions of a compressor actuator by pumping the oil from the inside on an axis of rotation (141), the compressor comprising: a hermetic container (110) storing oil at a lower portion; a stator (120) mounted within the hermetic container (110); a cylinder type rotor (130) rotating within the stator (120) by a rotating electromagnetic field from the stator (120), with the rotor (130) defining a compression chamber inside; a roller (142) rotating within the compression chamber of the cylinder type rotor (130) by a rotational force transferred from the rotor (130), with the roller (142) compressing refrigerant during rotation; an axis of rotation (141) integrally formed with the roller (142) and extending in an axial direction; a vane (143) dividing the compression chamber into a suction regio

Abstract: A device for axially conveying fluids, wherein the conveyor part thereof is entirely magnetically borne and the radial bearing thereof is provided with sufficient rigidity and efficiently dampened, whereby problems encountered when passing through critical speeds and the disadvantageous effects of hydrodynamic and mechanical imbalance of the rotor are avoided. The magnetic bearing is combined with a hydrodynamic bearing.

Abstract: A heat dissipation fan includes a first magnetic pole, and a second magnetic pole positioned in the first magnetic pole. A plurality of coils is positioned on the first magnetic pole. A plurality of fan blades is positioned on an inner surface of the second magnetic pole. When the current is applied, the magnetic field between the first and second magnetic poles generates a force on the first magnetic pole through the plurality of coils thereon. The first magnetic pole generates a counterforce on the second magnetic pole to rotate the plurality of fan blades.

Abstract: A fan motor structure is provided. A fan is disposed within an accommodating hole at a center of a body. A permanent magnet and a printed circuit board (PCB) provided with plural coils are respectively disposed between an upper ring and a base of the body. An axial air gap is formed between the coils and the permanent magnet. A bearing is disposed between the upper ring and the base. The fan blades of the fan extend from the periphery of the accommodating hole toward the center of the fan. An axle center of the fan overlaps with that of the body. The coils after being supplied with a current create a flux linkage with the permanent magnet. Due to the flux linkage and the axial air gap between the coils and the permanent magnet, the upper ring is forced to rotate, thus driving the fan to rotate.

Abstract: A multi-drive pump may include a pump housing, an inlet port, an outlet port, a primary pump gear, a secondary pump gear, a first internal mechanical drive mechanism coupled to the primary pump gear and a second internal mechanical drive mechanism and an internal electro-magnetic drive mechanism coupled to the secondary pump gear. The pump housing may define an internal volume fluidly coupled to the inlet port and the outlet port. The primary pump gear and the secondary pump gear may be positioned in the pump housing and coupled to one another. Rotation of the primary pump gear and the secondary pump gear draws fluid into the inlet port and expels fluid from the outlet port. The primary pump gear may be rotated by the first internal mechanical drive mechanism and the secondary pump gear may be rotated by the second internal mechanical drive mechanism and the internal electro-magnetic drive mechanism.

Abstract: A blood pump comprises a pump housing; a rotor positioned in the housing and comprising an impeller having a hydrodynamic surface for pumping blood; and a motor including a plurality of magnets carried by the impeller, plus a rotor stator, including an electrically conductive coil located adjacent to or within the housing. The impeller comprises radially outwardly extending, bladelike projections that define generally longitudinally extending spaces between the projections. The shape of the projections and the spaces therebetween tend to drive blood in the spaces in an axial direction as the impeller is rotated. The spaces collectively have a total width along most of their lengths at the radial periphery of the rotor, that is substantially equal to or less than the collective width of the projections along most of their lengths at the radial periphery. Thus, the bladelike projections are thicker, achieving significant advantages.

Abstract: The invention relates to an internal gear pump including: a rotor member including an outer rotor provided with inner teeth to which a torque supplied from a driving device is transmittable; an inner rotor provided with outer teeth engageable with the inner teeth of the outer rotor so to be driven by a rotation of the outer rotor, wherein a rotation axis of the inner rotor is eccentric with respect to a center of the rotor member; a pair of housings provided on opposite sides of the rotor member and the inner rotor to support the rotor member and the inner rotor; and at least one rolling bearing provided between at least one of the housings and the rotor member.

Abstract: A pump for moving a liquid including a stator and a rotor which rotates to move at least one helical pumping member. The rotor in rotation is radially supported relative to the stator only by a layer of liquid maintained between the rotor and stator by rotor rotation.

Abstract: A linear actuator may include a fixed body having a coil wound around in a ring-shaped manner and a movable body. The movable body may include a first movable body side yoke which is disposed on the inner side of the coil and a pair of magnets which is laminated on both sides in an axial direction of the first movable body side yoke such that the same polarities of the magnets face the first movable body side yoke. The movable body may be driven in the axial direction. The linear actuator may be applied to a valve device and a pump device.

Abstract: A pump drive unit has an openable housing that accommodates a disposable impeller unit which is pre-connected with tubing, while maintaining the tight tolerances and close spacing. A levitation system (magnets and sensors), drive motor and drive magnets, and control electronics are all re-usable and housed within relatively permanent structures. In one embodiment, a hinged top separates the levitating magnets to allow the impeller unit to be captured and retained with positional accuracy and in close proximity to the desired locations when the hinged top is closed. The top may be separated into sections covering unequal arcs to coincide with the organization of the magnetic subcomponents in the upper drive unit housing.

Abstract: A device for axially conveying fluids, wherein the conveyor part thereof is entirely magnetically borne and the radial bearing thereof is provided with sufficient rigidity and efficiently dampened, whereby problems encountered when passing through critical speeds and the disadvantageous effects of hydrodynamic and mechanical imbalance of the rotor are avoided. The magnetic bearing is combined with a hydrodynamic bearing.

Abstract: The invention relates to a cooling apparatus for an electric component such as a CPU, a memory or power semiconductor, such as transistors or LEDs, or a processor. The cooling apparatus comprises a heatsink, an impeller that coaxially encloses the heatsink, and a drive motor for the impeller. The heatsink takes the form of a stationary hub having a base for introducing heat from the electronic component that is to be cooled, the hub widening towards the base. Cooling fins are thermally coupled to the hub, the cooling fins being given a spiral-like curve similar to the blades of the impeller. Due to the special design of the hub and the cooling fins as well as the use of a radial flux motor, a highly efficient, particularly compact cooling apparatus can be realized.

Abstract: A motor-pump unit is provided that has at least two internal gearwheel pumps axially aligned that are driven off of the rotor of the electric motor. The rotor of the electric motor is U-shaped and is concentrically disposed about the pump. The web of the U-shape is disposed in the region of the rotational axis with internal toothing that meshes with pinions of the at least two internal gearwheel pumps.

Abstract: A device for cardiocirculatory assistance, also named a ventricular assist device, includes a haematic pump (50) with a pump body (7) having an inner space (21) defined by a rigid structure (51) and a pair of mobile membranes (16, 17) alternately driven in opposite directions by alternately positive pressure and negative pressure gas supplied to recesses (19, 20) surrounding the two membranes by means of an external pneumatic force generating unit (1). This device achieves excellent operation results while maintaining a reduced size and reduced weight.

Abstract: A rotary compressor having a housing, a rotor positioned within the housing defining a compression chamber, the rotor rotatable about an axis of rotation, a discharge port in the rotor in fluid communication with the compression chamber, and a valve assembly mounted to the rotor to regulate the pressure of the fluid within the compression chamber. In one embodiment, the valve assembly is canted or obliquely aligned with respect to the axis of rotation of the rotor and a radial axis perpendicular to and intersecting the axis of rotation. Aligning the valve assembly in this way allows the displacement of the valve head of the valve assembly to be substantially collinear with forces acting on the valve head.

Abstract: An electric pump comprises a case in which a core being enwound by a coil is embedded, a permanent magnet formed in a cylindrical shape, having a central axis being identical to that of the core, and positioned so as to face an inner peripheral side of the core, an outer rotor fixed to an inner peripheral side of the permanent magnet, a rotor unit including the permanent magnet and the outer rotor, an inner rotor having a central axis, which is eccentric from a central axis of the core, so as to rotate; and an inscribed-type pump for carrying out, by means of rotation of the inner rotor, which is engaged with the outer rotor so as to rotate in accordance with rotation of the outer rotor, intake and exhaust of fluids, wherein the rotor unit includes a slide surface extending in an axial direction; the case includes a cylindrical projecting ring portion having an identical central axis to that of the core, and the rotor unit is rotatably supported by the peripheral surface of the cylindrical projecting ring por

Abstract: A blood pump device comprises a housing having a blood inflow port and a blood outflow port, an impeller having a magnetic body or bodies and rotated in a non-contact state in relation to the inside surface of the housing to feed blood, an impeller rotating torque generating section for attracting the impeller from the outside of the housing and rotating the impeller, and a non-contact type bearing mechanism enabling the rotation in the non-contact state of the impeller inside the housing. An impeller fixing member is detachably mounted to the housing and prevents the impeller from moving inside the housing, whereby the impeller can be prevented from moving inside the housing before use, and damage to the impeller or the housing inside surface can be avoided.

Abstract: A pump for moving a liquid including stator and a permanent magnet rotor which rotates to move at least one a helical pumping member.

Abstract: A rotary compressor for compressing a working fluid includes a housing having an oil sump. A stationary shaft extends into the housing and includes a longitudinal passage. The longitudinal passage has an oil inlet in fluid communication with the oil sump. A working fluid inlet receives the working fluid. A motor has a stator and a rotor. The rotor is rotatably mounted on the shaft within the housing and includes an internal compression chamber in fluid communication with the longitudinal passage. A roller is rotatably mounted on the shaft and eccentrically disposed within the compression chamber. The roller is coupled to the rotor such that rotation of the rotor rotates the roller and thereby compresses the working fluid within the compression chamber.

Abstract: An axial flow type cooling fan, comprising an upper casing, a lower casing, a rotor assembly, and a driving unit. The lower casing and the upper casing enclose an inner space. The rotor assembly is housed in the inner space and performs a rotational movement. The rotor assembly further comprises a plurality of blades, attached to a central shaft and having a peripheral ring, from which a peripheral rim extends outward. The driving unit has electric coils on the upper or lower casings and permanent magnets on the peripheral rim, causing the rotational movement of said rotor assembly. By the arrangement of these structural parts, an increased area of air flow and consequently increased air flow are attained, while drag and noise are reduced.

Abstract: In a scroll fluid machine, an orbiting scroll is eccentrically revolved with respect to a stationary scroll so that fluid in a sealed chamber between the stationary and orbiting scrolls may be compressed toward a center. A first magnet is mounted on the stationary scroll and a second magnet is mounted on the orbiting scroll so that the same poles of the first and second scrolls may be opposite to each other thereby preventing the orbiting scroll from pressing the stationary scroll excessively.

Abstract: An axial flow pump comprising a inner wall disposed in contact with the inside of a stator having winding, a rotor disposed inside the inner wall and adapted to be rotated upon energization of the winding, an axial flow blade formed on an outer periphery of the rotor spirally in a rotational axis direction of the rotor, and a flow path formed between the rotor and the inner wall and defined spirally in the rotational axis direction of the rotor by the axial flow blade. The inner wall is formed of non-magnetic metal and heat generated from the winding upon energization of the winding is transmitted through the inner wall to fluid flowing through the flow path, thereby enhancing the utilization rate of heat generated in the axial flow pump.

Abstract: Method for controlling an assist pump for fluid delivery systems with pulsatile pressure. If for example a heart assist pump is driven with a constant number of revolutions, it is achieved, that the blood is also delivered through the assist pump, even when the heart chamber is in the decontraction phase. With the present method it is achieved, that an assist pump only acts supportingly in the pressure phase of the main pump, in such a way, that the pressure difference between the input side and the output side of the assist pump is continuously determined and the number of revolutions of the assist pump is controlled in such a way, that the determined pressure difference does not fall below a predetermined value and the rate of flow does not sink below zero.

Abstract: A pump includes a pump chamber in which an impeller and a rotor of an electric motor connected to the impeller are disposed. A flow path runs from an inlet to an outlet of the pump chamber through a central passage of the rotor. A domestic appliance having the pump is also provided.

Abstract: A ventricular assistive device (VAD) based on a progressive cavity pump includes a pump housing having an inlet and an outlet, a pump stator contained within the pump housing, a pump rotor rotatably disposed within the pump stator, a motor including a motor rotor contained within the pump housing and a direct drive means connected between the motor rotor and an axial shaft of the pump rotor for rotating the pump rotor. The motor rotates the motor rotor, which in turn rotates the pump rotor through the direct drive means. The rotation of the pump rotor within the pump stator forms a plurality of cavities that carry blood forward through the pump housing from the inlet to the outlet as the motor drives the direct drive means.

Abstract: An integrated cooler for electronic devices comprises a heat exchange element, a heat transferring element and a blower with an electric drive. The heat exchange element comprises a base and heat exchanging means. The electronic device directly thermally connected with the base or the heat exchanging means by the heat transferring element. The blower comprises an inlet, an outlet and a drum type impeller comprises a disk with blades mounted on an axle fixed perpendicularly to the base. The heat exchanging means located at the inlet and/or at the outlet, thus ambient air flows through the inlet, the impeller and the outlet in a series way and in the directions perpendicular to the axle, so that the blower is a crossflow type blower. The electric drive comprises a rotor and a stator. The rotor made as the impeller having circumferential arrayed magnetic means. The stator comprises circumferential arrayed coils.

Abstract: A blood pump has an impeller rotatably disposed and magnetically suspended within a cavity of a stator by a plurality of magnetic bearings including an axial bearing to support the impeller axially in the cavity. The axial bearing includes adjacent impeller magnets and adjacent stator magnets with axially aligned polarities and reverse polarities with respect to adjacent magnets. A motor includes impeller magnets on the impeller and coils and poles associated with the stator. Radial permanent magnet and electromagnetic bearings are also included. The magnetic bearings and the motor have stator magnets or coils and poles disposed radially across the fluid passage from corresponding impeller magnets to define an annular gap positioned radially between the impeller and the stator, and positioned radially between all of the plurality of magnetic bearings, creating a straight through blood path without secondary flow paths.