US2658452A - Electromagnetic pump - Google Patents

Electromagnetic pump Download PDF

Info

Publication number
US2658452A
US2658452A US30860A US3086048A US2658452A US 2658452 A US2658452 A US 2658452A US 30860 A US30860 A US 30860A US 3086048 A US3086048 A US 3086048A US 2658452 A US2658452 A US 2658452A
Authority
US
United States
Prior art keywords
tube
pump
liquid
annulus
inlet
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US30860A
Inventor
Khatchik O Donelian
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to US30860A priority Critical patent/US2658452A/en
Application granted granted Critical
Publication of US2658452A publication Critical patent/US2658452A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K44/00—Machines in which the dynamo-electric interaction between a plasma or flow of conductive liquid or of fluid-borne conductive or magnetic particles and a coil system or magnetic field converts energy of mass flow into electrical energy or vice versa
    • H02K44/02—Electrodynamic pumps
    • H02K44/06—Induction pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D7/00—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts
    • F04D7/02—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type
    • F04D7/06—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type the fluids being hot or corrosive, e.g. liquid metals
    • F04D7/065—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type the fluids being hot or corrosive, e.g. liquid metals for liquid metal

Definitions

  • liquids as mercury and liquid bismuth have been devised in the past.
  • an electromagnetic centrifugal pump By the present invention there is provided an electromagnetic centrifugal pump.
  • the pump of the present invention is particularly useful in pumping liquids which are extremely active chemically, such as alloys of sodium and potassium.
  • the conducting liquid is whirled in the pump chamber by the action of a rotating magnetic eld and is forced out by centrifugal force through an aperture in the periphery of the chamber.
  • Fig. 1 is a central vertical sectional view of an electromagnetic centrifugal pump
  • Fig. 2 is a cross sectional view of the pump of Fig. 1 taken along the line 2--2 in the direction indicated by arrows;
  • Fig. 3 is a cross sectional view of the pump oi' Fig. 1 along the line 3-3 in the direction indicated by arrows.
  • a glass tube Il] has sealed to the respective ends thereof steel caps I2 and I4, the fastening and sealing being accomplished at each end by compression of an annular rubber gasket I6 around the tube i by means of bolts I8 compressing the gasket I8 between the respective cap I2, I4 and a collar 20 which likewise surrounds the tube Ill.
  • 'I'he tube I0 has a flared portion 22, of enlarged diameter, at the end adjacent the cap I2 and a tangential nozzle aperture 24 at the periphery of the ared portion 22. (As will hereinafter appear.
  • the aperture 24 is the outlet aperture of the pump.
  • the outlet end cap I2 is centrally bored and threaded at 28 to receive the threaded end 30 of a steel tube 32 which extends longitudinally through the pump.
  • Mounted on the tube 32 are a large number of laminated disks 34 of iron which are centrally apertured to receive the tube 32 and are clamped between an annular shoulder 26 on the outer surface of the tube 32 and an internally threaded steel collar Il which surrounds the outlet end of the outer surface of the tube 32 and cooperates with a threaded portion 40 thereon.
  • the laminations 24 form a ferromagnetic fil* core which is thus mounted axially of the tube lll in the central region thereof.
  • the inner wall of the tube I0 and the outer surface of the core 34 thus serve to encompasse an elongated circular annulus 42.
  • the tube 32 is perforated at 44 near the inlet end and communicates with an inlet pipe 44 through a central bore 50 in the inlet end cap I4.
  • the bore 5I has internal threads cooperating with external threads on the steel tube 32 at the inlet end thereof so t t the tube 32 is rigidly mounted at both ends.
  • r 'plug cap 52 communicating with the tube 32 is p ovided in the outlet end cap I4 to permit draining of ,the pump when desired.
  • Surrounding the central region of the tube i0 is a three-phase stationary electromagnet l0. As illustrated, the electromagnet 60 is the stator of a conventional three-phase electric motor.
  • the flux path o f the magnetic field is across the annulus 42 between the magnet-60 and the core 34.
  • the liquid metal enters the pump through the inlet pipe 48 and the perforations at 44.
  • the rotating field of the windings 60 whirls the liquid by interaction between the magnetic neld and the currents induced in the liquid by the change of magnetic flux.
  • the centrifugal force exerted by the rotation of the liquid in the annulus 42 forces theliquid out at the aperture 24 on the periphery of the flared outlet end 22.
  • the dared portion 22 is not essential to minimum operation, its presence aids both in the centrifugalY action and in the starting of the pump.
  • the windings producing the magnetic field may be on the core rather than outside the chamber, and the tube may be of a ferromagnetic material such as iron.
  • the tube may be of a ferromagnetic material such as iron.
  • means other than a polyphase electromagnet may be used for generating the rotating magnetic field; although such an embodiment is not preferred.
  • permanent magnets may be mechanically rotated.
  • a pump for electrically conducting liquids comprising, in combination, a tube of glass, an elongated core comprising laminated iron disks, means for mounting the core within the tube and along the axis thereof to form a partitionless annulus between the core and the inner wall of the tube, a polyphase electromagnet surrounding the tube to produce in the annulus a magnetic field rotating about the axis of the tube, a liquid inlet at one end of the tube centrally of the tube, and a peripheral liquid outlet at the other end of the tube, said outlet end being flared to a diameter greater than that of the remainder of the tube, whereby an electrically conducting liquid is admitted through said inlet, rotated in the annulus bythe action of the rotating ileld and forced out at the periphery by centrifugal force.
  • a pump for electrically conducting liquids comprising, in combination, a tube of electrically insulating material, an elongated ferromagnetic core, means for mounting the core within the tube and along the axis thereof to form a partitionless annulus between the core and the inner wall of the tube, magnet means surrounding the tube adapted to produce in the annulus a magnetic field rotating about the axis of the tube. an axial liquid inlet at one end of the tube, and a peripheral liquid outlet at the other end of the tube, whereby an electrically conducting liquid is admitted through said inlet, rotated in the annulus by the action of the rotating field and forced out at the periphery by centrifugal force.
  • a pump for electrically conducting liquids comprising, in combination, a tube, a stationary core, means for fixedly mounting the core within the tube and along the axis thereof to form a partitionless annulus between the core and the inner wall of the tube, magnet means on the tube adapted to produce in the annulus a magnetic field rotating about the axis of the tube, at least one axial liquid inlet at one end of the tube, and at least one peripheral liquid outlet at the other end of the tube. whereby an electrically conducting liquid is admitted through said inlet. rotated in the annulus by the action oi' the rotating field and forced out at the periphery by centrifugal force.
  • a pump for electrically conducting liquids comprising, in combination, a circular container, a circular ferromagnetic core, means to mount the core within the tube and along the axis thereof to encompasse a partitionless annular liquid flow path, polyphase magnet windings on the container adapted to produce a circumferentially rotating magnetic field across the annulus, a liquid inlet into the inner surface of the annulus, and a liquid outlet at the periphery of the annulus, whereby an electrically conducting liquid is admitted through said inlet, rotated in the annulus by the action of the rotating field and forced out at the periphery by centrifugal force.
  • a pump for electrically conducting liquids comprising a partitionless chamber having its interior free of mobile solid members and having an axial liquid inlet and a liquid outlet on the periphery thereof, and magnet means around the chamber for rotating a magnetic field around the axis of the chamber, whereby an electrically conducting liquid is admitted through said inlet, rotated in the chamber by the action of the rotating i'ield and forced out at the periphery by centrifugal force.
  • a pump for electrically conducting liquids comprising, in combination. walls defining a substantially circular closed flow path free of mobile solid members, magnet means around the walls adapted to produce a rotating magnetic field across the flow path, at least one inlet aperture to the flow path, and at least one outlet aperture radially outward from the inlet aperture, whereby an electrically conducting liquid is admitted through said inlet, rotated in the flow path by the action of the rotating field and forced out at the periphery by centrifugal force.
  • a pump for electrically conducting liquid comprising, in combination. a partitionless cylindrical chamber having its interior free of mobile solid members and having an inlet centrally disposed thereof and an outlet disposed peripherally thereof, and means on the chamber for inducing a rotating magnetic field through the chamber and about the axis of the chamber, whereby an electrically conducting liquid is admitted through said inlet, rotated in the chamber by the action of the rotating eld and forced out at the periphery by centrifugal force.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Description

Elfi-l K. O. DONELIAN ELECTROMAGNETIC PUMP Nov. l0, 1953 2 Sheets-Sheet l Filed June 3, 1948 .Q ll. 9,411/4441 NNW K. O. DONELIAN ELECTROMAGNETIC PUMP Nov. l0, 1953 2 Sheets-Sheet 2 Filed June 3, 1948 Patented Nov. 10, 1953 ELECTBOMAGNETIC PUMP Khatchik O. Donclian. Fairlawn, N. J., anlgnor to the United States of America al represented by the United States Atomic Energy Commission Application June 3, i948, Serial No. 30,880
(Cl. 103l) f 1s claims. l
liquids as mercury and liquid bismuth have been devised in the past. By the present invention there is provided an electromagnetic centrifugal pump. The pump of the present invention is particularly useful in pumping liquids which are extremely active chemically, such as alloys of sodium and potassium.
Generally, in the pump structure of the in-4 vention, the conducting liquid is whirled in the pump chamber by the action of a rotating magnetic eld and is forced out by centrifugal force through an aperture in the periphery of the chamber. For a more complete understanding of the invention, reference is made to the drawing, illustrating a single embodiment thereof. In the drawing:
Fig. 1 is a central vertical sectional view of an electromagnetic centrifugal pump;
Fig. 2 is a cross sectional view of the pump of Fig. 1 taken along the line 2--2 in the direction indicated by arrows; and
Fig. 3 is a cross sectional view of the pump oi' Fig. 1 along the line 3-3 in the direction indicated by arrows.
A glass tube Il] has sealed to the respective ends thereof steel caps I2 and I4, the fastening and sealing being accomplished at each end by compression of an annular rubber gasket I6 around the tube i by means of bolts I8 compressing the gasket I8 between the respective cap I2, I4 and a collar 20 which likewise surrounds the tube Ill. 'I'he tube I0 has a flared portion 22, of enlarged diameter, at the end adjacent the cap I2 and a tangential nozzle aperture 24 at the periphery of the ared portion 22. (As will hereinafter appear. the aperture 24 is the outlet aperture of the pump. and the flared portion 22 is at the outlet end of the tube I0.) The outlet end cap I2 is centrally bored and threaded at 28 to receive the threaded end 30 of a steel tube 32 which extends longitudinally through the pump. Mounted on the tube 32 are a large number of laminated disks 34 of iron which are centrally apertured to receive the tube 32 and are clamped between an annular shoulder 26 on the outer surface of the tube 32 and an internally threaded steel collar Il which surrounds the outlet end of the outer surface of the tube 32 and cooperates with a threaded portion 40 thereon. The laminations 24 form a ferromagnetic fil* core which is thus mounted axially of the tube lll in the central region thereof.
The inner wall of the tube I0 and the outer surface of the core 34 thus serve to denne an elongated circular annulus 42. The tube 32 is perforated at 44 near the inlet end and communicates with an inlet pipe 44 through a central bore 50 in the inlet end cap I4. The bore 5I has internal threads cooperating with external threads on the steel tube 32 at the inlet end thereof so t t the tube 32 is rigidly mounted at both ends. r 'plug cap 52 communicating with the tube 32 is p ovided in the outlet end cap I4 to permit draining of ,the pump when desired. Surrounding the central region of the tube i0 is a three-phase stationary electromagnet l0. As illustrated, the electromagnet 60 is the stator of a conventional three-phase electric motor. The flux path o f the magnetic field is across the annulus 42 between the magnet-60 and the core 34.
As indicated' by ilow arrows in the drawing. the liquid metal enters the pump through the inlet pipe 48 and the perforations at 44. The rotating field of the windings 60 whirls the liquid by interaction between the magnetic neld and the currents induced in the liquid by the change of magnetic flux. The centrifugal force exerted by the rotation of the liquid in the annulus 42 forces theliquid out at the aperture 24 on the periphery of the flared outlet end 22. Although the dared portion 22 is not essential to minimum operation, its presence aids both in the centrifugalY action and in the starting of the pump.
Although there is described above only a single embodiment of the invention. it is obvious that many pumps embodying the teachings of the invention may readily be devised. As an obvious example, the windings producing the magnetic field may be on the core rather than outside the chamber, and the tube may be of a ferromagnetic material such as iron. Likewise means other than a polyphase electromagnet may be used for generating the rotating magnetic field; although such an embodiment is not preferred. permanent magnets may be mechanically rotated. Many other modifications of the embodiment described above will be immediately apparent.
What is claimed is:
1. A pump for electrically conducting liquids comprising, in combination, a tube of glass, an elongated core comprising laminated iron disks, means for mounting the core within the tube and along the axis thereof to form a partitionless annulus between the core and the inner wall of the tube, a polyphase electromagnet surrounding the tube to produce in the annulus a magnetic field rotating about the axis of the tube, a liquid inlet at one end of the tube centrally of the tube, and a peripheral liquid outlet at the other end of the tube, said outlet end being flared to a diameter greater than that of the remainder of the tube, whereby an electrically conducting liquid is admitted through said inlet, rotated in the annulus bythe action of the rotating ileld and forced out at the periphery by centrifugal force.
2. A pump for electrically conducting liquids comprising, in combination, a tube of electrically insulating material, an elongated ferromagnetic core, means for mounting the core within the tube and along the axis thereof to form a partitionless annulus between the core and the inner wall of the tube, magnet means surrounding the tube adapted to produce in the annulus a magnetic field rotating about the axis of the tube. an axial liquid inlet at one end of the tube, and a peripheral liquid outlet at the other end of the tube, whereby an electrically conducting liquid is admitted through said inlet, rotated in the annulus by the action of the rotating field and forced out at the periphery by centrifugal force.
3. A pump for electrically conducting liquids comprising, in combination, a tube, a stationary core, means for fixedly mounting the core within the tube and along the axis thereof to form a partitionless annulus between the core and the inner wall of the tube, magnet means on the tube adapted to produce in the annulus a magnetic field rotating about the axis of the tube, at least one axial liquid inlet at one end of the tube, and at least one peripheral liquid outlet at the other end of the tube. whereby an electrically conducting liquid is admitted through said inlet. rotated in the annulus by the action oi' the rotating field and forced out at the periphery by centrifugal force.
4. The apparatus of claim 3 wherein the magnet means comprises a polyphase magnet winding.
5. The apparatus of claim 3 wherein the outlet end of the tube is flared to a diameter larger than the remainder of the tube.
6. A pump for electrically conducting liquids comprising, in combination, a circular container, a circular ferromagnetic core, means to mount the core within the tube and along the axis thereof to denne a partitionless annular liquid flow path, polyphase magnet windings on the container adapted to produce a circumferentially rotating magnetic field across the annulus, a liquid inlet into the inner surface of the annulus, and a liquid outlet at the periphery of the annulus, whereby an electrically conducting liquid is admitted through said inlet, rotated in the annulus by the action of the rotating field and forced out at the periphery by centrifugal force.
7. A pump for electrically conducting liquids compriins. in combination, walls defining a partitionless annular liquid flow path, magnet means around the walls adapted to produce a circumferentially rotating magnetic field across the annulus. at least one liquid inlet centrally of the annulus, and at least one liquid outlet at the periphery of the annulus, whereby an electrically conducting liquid is admitted through said inlet. rotated in the annulus by the action of the rotating neld and forced out at the periphery by centrifugal force.
8. The apparatus of claim 7 wherein the magnet means is a stationary Polyphase electromagnet.
9. A pump for electrically conducting liquids comprising a partitionless chamber having its interior free of mobile solid members and having an axial liquid inlet and a liquid outlet on the periphery thereof, and magnet means around the chamber for rotating a magnetic field around the axis of the chamber, whereby an electrically conducting liquid is admitted through said inlet, rotated in the chamber by the action of the rotating i'ield and forced out at the periphery by centrifugal force.
10. A pump for electrically conducting liquids comprising, in combination. walls defining a substantially circular closed flow path free of mobile solid members, magnet means around the walls adapted to produce a rotating magnetic field across the flow path, at least one inlet aperture to the flow path, and at least one outlet aperture radially outward from the inlet aperture, whereby an electrically conducting liquid is admitted through said inlet, rotated in the flow path by the action of the rotating field and forced out at the periphery by centrifugal force.
11. The apparatus of claim 10 wherein the inlet aperture is connected centrally of the circular fiow path.
12. The apparatus of claim 11 wherein the magnet means is a stationary polyphase circular electromagnet.
13. A pump for electrically conducting liquid comprising, in combination. a partitionless cylindrical chamber having its interior free of mobile solid members and having an inlet centrally disposed thereof and an outlet disposed peripherally thereof, and means on the chamber for inducing a rotating magnetic field through the chamber and about the axis of the chamber, whereby an electrically conducting liquid is admitted through said inlet, rotated in the chamber by the action of the rotating eld and forced out at the periphery by centrifugal force.
KHATCHIK O. DONELIAN.
References Cited in the ille of this patent UNITED STATES PATENTS
US30860A 1948-06-03 1948-06-03 Electromagnetic pump Expired - Lifetime US2658452A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US30860A US2658452A (en) 1948-06-03 1948-06-03 Electromagnetic pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US30860A US2658452A (en) 1948-06-03 1948-06-03 Electromagnetic pump

Publications (1)

Publication Number Publication Date
US2658452A true US2658452A (en) 1953-11-10

Family

ID=21856397

Family Applications (1)

Application Number Title Priority Date Filing Date
US30860A Expired - Lifetime US2658452A (en) 1948-06-03 1948-06-03 Electromagnetic pump

Country Status (1)

Country Link
US (1) US2658452A (en)

Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2716943A (en) * 1953-01-16 1955-09-06 Leonard V Vandenberg Liquid metal high pressure pump
US2730951A (en) * 1950-01-20 1956-01-17 Khatchik O Donelian Electromagnetic centrifugal pump
US2786416A (en) * 1953-09-25 1957-03-26 English Electric Co Ltd Electro-magnetic pump
US2808002A (en) * 1953-11-16 1957-10-01 Allis Chalmers Mfg Co Linear electromagnetic pump having concentric fluid passages
US2836637A (en) * 1954-06-10 1958-05-27 Pechiney Prod Chimiques Sa Apparatus for removing liquid metal from furnaces
US2848409A (en) * 1954-01-26 1958-08-19 Amroc Inc Devices for the propulsion of mercury through a conduit
US2915973A (en) * 1953-08-18 1959-12-08 Jacquelyn M Findlay Apparatus for pumping liquid metal
US2920571A (en) * 1952-05-23 1960-01-12 English Electric Co Ltd Electro-magnetic devices
US2928349A (en) * 1953-09-16 1960-03-15 Nat Res Corp Pump
US2929326A (en) * 1955-06-28 1960-03-22 Ward A Ingels Liquid metal pumps
US2978985A (en) * 1955-08-01 1961-04-11 Rca Corp Electromagnetic pumps
US3030888A (en) * 1957-11-12 1962-04-24 Keltz Laurence Electromagnetic pump
US3052097A (en) * 1959-12-31 1962-09-04 Joseph M Tyrner Electro-dynamic actuator
DE1165417B (en) * 1957-01-10 1964-03-12 Atomic Energy Authority Uk Electromagnetic pump
US3196795A (en) * 1963-01-02 1965-07-27 North American Aviation Inc Electromagnetic pump system
US3283187A (en) * 1964-03-12 1966-11-01 Franklin Electric Co Inc Electric motor with a laminated bore liner
FR2182623A1 (en) * 1972-03-30 1973-12-14 Alsacienne Atom
US3871176A (en) * 1973-03-08 1975-03-18 Combustion Eng Large sodium valve actuator
US4166714A (en) * 1976-08-20 1979-09-04 Interatom, International Atomreaktorbau G.M.B.H. Electromagnetic pump
US4212592A (en) * 1978-10-31 1980-07-15 General Electric Company Electromagnetic pump for molten metals
US4416771A (en) * 1981-05-23 1983-11-22 Henriques Lance L Mine ore concentrator
US4824329A (en) * 1985-07-05 1989-04-25 Hitachi, Ltd. Method and apparatus for controlling liquid metal flow
FR2630787A1 (en) * 1988-04-27 1989-11-03 Doryokuro Kakunenryo Combined mechanical pump for electromagnetic fluids
WO1991019102A1 (en) * 1990-06-07 1991-12-12 J. Mulcahy Enterprises Inc. Pumping liquid metals
DE102010023130A1 (en) * 2010-06-09 2011-12-15 Basf Se Wanderfeldreaktor and method for separating magnetizable particles from a liquid
JP2016101007A (en) * 2014-11-21 2016-05-30 株式会社東芝 Electromagnetic pump and flow rate measurement system
US11049624B2 (en) 2015-12-07 2021-06-29 Ge-Hitachi Nuclear Energy Americas Llc Nuclear reactor liquid metal coolant backflow control

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1298664A (en) * 1915-01-18 1919-04-01 Westinghouse Electric & Mfg Co Vacuum-pump.
GB126947A (en) * 1918-05-11 1919-12-24 Julius Frederik Georg Hartmann Improvements in or relating to Apparatus for Producing a Continuous Electrically Conducting Liquid Jet.
DE543214C (en) * 1932-02-03 Leo Szilard Dr Device for moving liquid metals
US2305500A (en) * 1940-01-22 1942-12-15 Slayter Electronic Corp Apparatus for electrically generating pressures
US2397785A (en) * 1942-06-10 1946-04-02 Gen Electric Co Ltd Electromagnetic pump
US2524269A (en) * 1946-10-14 1950-10-03 Sta Rite Products Inc Pump

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE543214C (en) * 1932-02-03 Leo Szilard Dr Device for moving liquid metals
US1298664A (en) * 1915-01-18 1919-04-01 Westinghouse Electric & Mfg Co Vacuum-pump.
GB126947A (en) * 1918-05-11 1919-12-24 Julius Frederik Georg Hartmann Improvements in or relating to Apparatus for Producing a Continuous Electrically Conducting Liquid Jet.
US2305500A (en) * 1940-01-22 1942-12-15 Slayter Electronic Corp Apparatus for electrically generating pressures
US2397785A (en) * 1942-06-10 1946-04-02 Gen Electric Co Ltd Electromagnetic pump
US2524269A (en) * 1946-10-14 1950-10-03 Sta Rite Products Inc Pump

Cited By (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2730951A (en) * 1950-01-20 1956-01-17 Khatchik O Donelian Electromagnetic centrifugal pump
US2920571A (en) * 1952-05-23 1960-01-12 English Electric Co Ltd Electro-magnetic devices
US2716943A (en) * 1953-01-16 1955-09-06 Leonard V Vandenberg Liquid metal high pressure pump
US2915973A (en) * 1953-08-18 1959-12-08 Jacquelyn M Findlay Apparatus for pumping liquid metal
US2928349A (en) * 1953-09-16 1960-03-15 Nat Res Corp Pump
US2786416A (en) * 1953-09-25 1957-03-26 English Electric Co Ltd Electro-magnetic pump
US2808002A (en) * 1953-11-16 1957-10-01 Allis Chalmers Mfg Co Linear electromagnetic pump having concentric fluid passages
US2848409A (en) * 1954-01-26 1958-08-19 Amroc Inc Devices for the propulsion of mercury through a conduit
US2836637A (en) * 1954-06-10 1958-05-27 Pechiney Prod Chimiques Sa Apparatus for removing liquid metal from furnaces
US2929326A (en) * 1955-06-28 1960-03-22 Ward A Ingels Liquid metal pumps
US2978985A (en) * 1955-08-01 1961-04-11 Rca Corp Electromagnetic pumps
DE1165417B (en) * 1957-01-10 1964-03-12 Atomic Energy Authority Uk Electromagnetic pump
US3030888A (en) * 1957-11-12 1962-04-24 Keltz Laurence Electromagnetic pump
US3052097A (en) * 1959-12-31 1962-09-04 Joseph M Tyrner Electro-dynamic actuator
US3196795A (en) * 1963-01-02 1965-07-27 North American Aviation Inc Electromagnetic pump system
US3283187A (en) * 1964-03-12 1966-11-01 Franklin Electric Co Inc Electric motor with a laminated bore liner
FR2182623A1 (en) * 1972-03-30 1973-12-14 Alsacienne Atom
US3871176A (en) * 1973-03-08 1975-03-18 Combustion Eng Large sodium valve actuator
US4166714A (en) * 1976-08-20 1979-09-04 Interatom, International Atomreaktorbau G.M.B.H. Electromagnetic pump
US4212592A (en) * 1978-10-31 1980-07-15 General Electric Company Electromagnetic pump for molten metals
US4416771A (en) * 1981-05-23 1983-11-22 Henriques Lance L Mine ore concentrator
US4824329A (en) * 1985-07-05 1989-04-25 Hitachi, Ltd. Method and apparatus for controlling liquid metal flow
FR2630787A1 (en) * 1988-04-27 1989-11-03 Doryokuro Kakunenryo Combined mechanical pump for electromagnetic fluids
WO1991019102A1 (en) * 1990-06-07 1991-12-12 J. Mulcahy Enterprises Inc. Pumping liquid metals
DE102010023130A1 (en) * 2010-06-09 2011-12-15 Basf Se Wanderfeldreaktor and method for separating magnetizable particles from a liquid
DE102010023130B4 (en) * 2010-06-09 2012-04-12 Basf Se Wanderfeldreaktor and method for separating magnetizable particles from a liquid
CN102939165A (en) * 2010-06-09 2013-02-20 西门子公司 Travelling field reactor and method for separating magnetizable particles from a liquid
JP2016101007A (en) * 2014-11-21 2016-05-30 株式会社東芝 Electromagnetic pump and flow rate measurement system
US11049624B2 (en) 2015-12-07 2021-06-29 Ge-Hitachi Nuclear Energy Americas Llc Nuclear reactor liquid metal coolant backflow control
US11798695B2 (en) 2015-12-07 2023-10-24 Ge-Hitachi Nuclear Energy Americas Llc Method of configuring liquid metal-cooled nuclear reactor with backflow electromagnetic pump (EMP)

Similar Documents

Publication Publication Date Title
US2658452A (en) Electromagnetic pump
US3932069A (en) Variable reluctance motor pump
US3750951A (en) Heat system for dishwasher
US2649048A (en) Fluid-shielded dynamoelectric device for immersed pumps and the like
US3083310A (en) Electric motor having a permanent magnet stator
GB1127821A (en) Asynchronous electric motor
US3492518A (en) Magnetic-electric pickup for toothed wheels and the like
US2495895A (en) Fluid circulating device
US2730951A (en) Electromagnetic centrifugal pump
GB1412571A (en) Electric motor driven submersible pump
GB1381383A (en) Rotating electrical machine and stator therefor
US3375384A (en) Synchronous motor having permanent magnetic rotors
US2603161A (en) Wet armature motor and pump combination with shaft bearings
US3102205A (en) Engine driven electrical generator
US3826938A (en) Magnetic coupling for motor driven pumps and the like
US2335014A (en) Magnetic induction accelerator
GB1339539A (en) Rotating electric machines
US3626220A (en) Electric motor with brake
US3339095A (en) Speed indicating dynamoelectric machine and tachometer generator structure therefor
US2798173A (en) Submersible electric motors
US3322986A (en) Gyroscopic rotor
CN106015026A (en) Integrated motor water pump
US2875695A (en) Sealed pumping system
USRE24909E (en) Submersible pump-motor
US3560823A (en) Low profile motor pump structure