General Electric Company

Alan W Fanning

Eugene E Olich

Leslie R Dahl

Mahadeo R Patel

Aaron A Gonzales

James Hibbert Oates

Anstein N Hunsbedt

Elias Plaza-Meyer

William G Jameson, Jr

Imad Ahmad Baghdadi

Brian Douglas Frew

Nicholas L Ramsour

Bruce Peter Matthew Kobel

Victor E Hazel

A flooring system for intercepting debris including at least a plurality of floor tiles with a perforated top surface providing on a top of the plurality of tube frames for intercepting the debris. Each plurality of floor tiles may include a plurality of tube frames in side by side relationship to form a distributed suction area for fluid entrance into tile interiors and for debris interception and capture. The tile interiors of the flooring system may also provide a distributed flow path for fluid flow to a transition plenum. The flooring system may also include a transition plenum for directing a flow path of the fluid from the tiles to a sump, wherein the pumps take suction.

Floor tile debris interceptor and transition plenum in a nuclear power plant

A support structure for clamping the inner coils and inner lamination rings of an inner stator column of an electromagnetic induction pump to prevent damaging vibration. A spine assembly, including a base plate, a center post and a plurality of ribs, serves as the structural frame for the inner stator. Stacked alignment rings provide structure to the lamination rings and locate them concentrically around the spine assembly central axis. The alignment rings are made of a material having a high thermal expansion coefficient to compensate for the lower expansion of the lamination rings and, overall, provide an approximate match to the expansion of the inner flow duct. The net result is that the radial clamping provided by the duct around the stator iron is maintained (approximately) over a range of temperatures and operating conditions. Axial clamping of the inner stator structure is achieved via tie rods which run through grooves in the ribs and engage the base plate at the bottom of the inner stator and engage a clamping plate at the top. Slender tie rods and a flexible clamping plate are used to provide compliance in the axial clamping system to accommodate differential thermal growth (axially) between the tie rods and lamination ring elements without losing clamping force.

Double-stator electromagnetic pump having alignment ring and spine

An electrical stator coil for an electromagnetic pump includes a continuous conductor strip having first and second terminals at opposite ends thereof and an intermediate section disposed therebetween. The strip is configured in first and second coil halves, with the first coil half including a plurality of windings extending from the first terminal to the intermediate section, and the second coil half including a plurality of windings extending from the second terminal to the intermediate section. The first and second coil halves are disposed coaxially, and the first and second terminals are disposed radially inwardly therefrom with the intermediate section being disposed radially outwardly therefrom.

Electromagnetic pump stator coil

A stator core for an electromagnetic pump includes a plurality of circumferentially adjoining groups of flat laminations disposed about a common centerline axis and collectively defining a central bore and a discontinuous outer perimeter, with adjacent groups diverging radially outwardly to form V-shaped gaps. An annular band surrounds the groups and is predeterminedly tensioned to clamp together the laminations, and has a predetermined flexibility in a radial direction to form substantially straight bridge sections between the adjacent groups.

Banded electromagnetic stator core

A stator core for an electromagnetic pump includes a plurality of circumferentially abutting tapered laminations extending radially outwardly from a centerline axis to collectively define a radially inner bore and a radially outer circumference. Each of the laminations includes radially inner and outer edges and has a thickness increasing from the inner edge toward the outer edge to provide a substantially continuous path adjacent the circumference.

Laminated electromagnetic pump stator core

A stator frame for an electromagnetic pump includes a casing joined to a hub by a plurality of circumferentially spaced apart struts. At least one electrically insulated power crossover lead extends through the hub, through a crossover one of the struts, and through the casing for carrying electrical current therethrough.

Electromagnetic pump stator frame having power crossover struts

A stator core for supporting an electrical coil includes a plurality of groups of circumferentially abutting flat laminations which collectively form a bore and perimeter. A plurality of wedges are interposed between the groups, with each wedge having an inner edge and a thicker outer edge. The wedge outer edges abut adjacent ones of the groups to provide a continuous path around the perimeter.

Electromagnetic pump stator core

An electrical stator of an electromagnetic pump includes first and second spaced apart coils each having input and output terminals for carrying electrical current. An elongate electrical connector extends between the first and second coils and has first and second opposite ends. The connector ends include respective slots receiving therein respective ones of the coil terminals to define respective first and second joints. Each of the joints includes a braze filler fixedly joining the connector ends to the respective coil terminals for carrying electrical current therethrough.

Electrical stator

Stator coils for linear flow electromagnetic induction pumps for pumping liquid metal circulating through a hydraulic system are provided with advantageous deployments of coil power terminals and leads.

Method for arranging the power terminals of coils in annular flow

A method for winding stator coils and fabricating laminated iron stator rings, then assembling same into an annular stator column for use in a linear flow electromagnetic induction pump for pumping electrically conductive liquid metal and circulation of same through the coolant circuit of a nuclear fission reactor plant or other liquid metal systems.

Method for producing inner stators for electromagnetic pumps

A liquid metal cooled nuclear reactor having a passive cooling system for removing residual heat resulting from fuel decay during reactor shutdown. The passive cooling system comprises a plurality of cooling medium flow circuits which cooperate to remove and carry heat away from the fuel core upon loss of the normal cooling flow circuit to areas external thereto.

Liquid metal cooled nuclear reactors with passive cooling system

A fuel assembly transfer basket for a pool type, liquid metal cooled nuclear reactor having a side access loading and unloading port for receiving and relinquishing fuel assemblies during transfer.

Fuel assembly transfer basket for pool type nuclear reactor vessels

A process is disclosed for providing different irradiation growth rates between a first nuclear element cladding tube of an anisotropic metal and a second cladding tube of the same metal. The process comprises tailoring the tube fabrication of each to produce cladding tubes having a crystalline structure in a desired energy state. The desired energy state is brought about by regulating the size of the final cold-work reduction and the time and temperature of heat treatment following the final reduction. The process is utilized to produce substantially equivalent irradiation growth between fuel rods and water rods. The preferred anisotropic metals are alloys of zirconium.

Control of differential growth in nuclear reactor components by control

A fuel assembly for a nuclear reactor including a plurality of fuel rods held in spaced, parallel position between upper and lower tie plates and retained in lateral position by intermediate spacers and having a water tube in lieu of a fuel element in one or more of the rod positions, the water tubes having an outside diameter greater than that of the fuel rods and the spacer springs in the spacer cells of the water tubes being modified to accommodate the larger diameter of the water tubes.

Growing community of inventors

San Jose, CA, United States of America

Alan W Fanning