A metal melt pump includes a bottomed cylinder body including a side wall and a bottom wall, a melt flow passage body including a melt flow passage that connects a suction port and an ejection port and being a body separate from the bottomed cylinder body, and a melt driving part including a magnetic field device and adapted to drive metal melt in the melt flow passage. The magnetic field device includes a plurality of permanent magnets arranged such that different magnetic poles are alternately arrayed along a circumference of a shaft, and the melt flow passage body is removably provided on the bottomed cylinder body at a position below the bottomed cylinder body and where a magnetic force line from one of the permanent magnets penetrates through the bottom wall downward to reach the melt flow passage.

A metal melt pump includes a bottomed cylinder body including a side wall and a bottom wall, a melt flow passage body including a melt flow passage that connects a suction port and an ejection port and being a body separate from the bottomed cylinder body, and a melt driving part including a magnetic field device and adapted to drive metal melt in the melt flow passage. The magnetic field device includes a plurality of permanent magnets arranged such that different magnetic poles are alternately arrayed along a circumference of a shaft, and the melt flow passage body is removably provided on the bottomed cylinder body at a position below the bottomed cylinder body and where a magnetic force line from one of the permanent magnets penetrates through the bottom wall downward to reach the melt flow passage.

A drive coil device, in particular for an oscillating armature pump, includes at least one coil carrier, further includes at least one coil wire that is wound onto the coil carrier to form a coil, and at least one coil enclosure configured to at least partly enclose the coil, wherein the coil enclosure comprises at least one contact interface which is configured to receive at least an end of the coil wire.

A drive coil device, in particular for an oscillating armature pump, includes at least one coil carrier, further includes at least one coil wire that is wound onto the coil carrier to form a coil, and at least one coil enclosure configured to at least partly enclose the coil, wherein the coil enclosure comprises at least one contact interface which is configured to receive at least an end of the coil wire.

A nuclear reactor is designed to couple the load path of the control elements with the reactor core, thus reducing the opportunity for differential movement between the control elements and the reactor core. A cartridge core barrel can be fabricated in a manufacturing facility to include the reactor core, control element supports, and control element drive system. The cartridge core barrel can be mounted to a reactor vessel head. Thus, any movement, such as through seismic forces, transmits an equal direction and magnitude to the control elements and the reactor core. This arrangement reduces the opportunity for differential movement between the control elements and the reactor core.

A drive coil device, in particular for an oscillating armature pump, includes at least one coil carrier, further includes at least one coil wire that is wound onto the coil carrier to form a coil, and at least one coil enclosure configured to at least partly enclose the coil, wherein the coil enclosure comprises at least one contact interface which is configured to receive at least an end of the coil wire.

A drive coil device, in particular for an oscillating armature pump, includes at least one coil carrier, further includes at least one coil wire that is wound onto the coil carrier to form a coil, and at least one coil enclosure configured to at least partly enclose the coil, wherein the coil enclosure comprises at least one contact interface which is configured to receive at least an end of the coil wire.

Systems and methods for measuring EM field-carrying fluid flow use a difference in magnitude or phase of the field as the fluid flows. The difference indicates with fluid speed, and this relationship can be established beforehand, experimentally, or from the magnetic Reynolds number. Systems take advantage of the EM field, such as that created by a stator coil in an EM pump by detecting that field advected in the pumped fluid downstream. Magnitude or phase difference of the field, as reportable by a voltage in a conductive receiver reflects the flow rate, and thus speed, of the fluid between the initial and detected points. A computer or logic can thus readily output fluid rate, such as from a pump, from any electrical signal generated by the advected field. Systems do not require power, field induction, lengthy straight conduits, co-planar generators and sensors, flow interruptions, or large attachment or surrounding structures.

Systems and methods for measuring EM field-carrying fluid flow use a difference in magnitude or phase of the field as the fluid flows. The difference indicates with fluid speed, and this relationship can be established beforehand, experimentally, or from the magnetic Reynolds number. Systems take advantage of the EM field, such as that created by a stator coil in an EM pump by detecting that field advected in the pumped fluid downstream. Magnitude or phase difference of the field, as reportable by a voltage in a conductive receiver reflects the flow rate, and thus speed, of the fluid between the initial and detected points. A computer or logic can thus readily output fluid rate, such as from a pump, from any electrical signal generated by the advected field. Systems do not require power, field induction, lengthy straight conduits, co-planar generators and sensors, flow interruptions, or large attachment or surrounding structures.

An annular linear induction pump comprises a casing, an annular duct disposed within the casing, the annular duct having an inner surface and an outer surface, and an electromagnet. The electromagnet can include a center component located within the annular duct and forming the inner surface of the annular duct, a plurality of stators disposed radially around the annular duct, and, a plurality of coils. The annular linear induction pump can be submersible within piping of a nuclear reactor power system.