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US3854065A Expired / Lapsed US ⏱️ 0.0 years remaining

Device for increasing the pressure of a conductive liquid and unipolar dynamo incorporating said device

Assignee: Bpifrance Financement SA
•
Filing: 1973-04-02
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Granted: 1974-12-10
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Expires: 1993-04-02
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Abstract

Abstract The device comprises a crown of electrically insulated elongated blades which define between themselves a channel for the passage of the liquid. Inlet means are provided for the conductive liquid, electrical current generating means for creating in each channel a current perpendicular to the surface defined by the longitudinal directions of the walls of the blades, and means for generating a magnetic field transverse to the said walls.

Inventors

  • 👤 C Rioux
  • 👤 J Lucidarme

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-03 01:45
CPC Classifications
H; H02; H02K; H02K31/00; H02K31/04; H02K44/00; H02K44/02; H02K44/04

Claims Analysis

Total Claims: 7
Claim 1
Independent Claim 207 words
Device for increasing the pressure of an electrically conducting liquid, comprising, in combination, a crown of elongated and curved blades which are each electrically insulated and adjacent blades of which crown define between themselves a space for the passage of said liquid between a first end and a second end opposite the first in the direction of the length of the blades, inlet means for bringing the conductive liquid to the first end of each said space, electric current generating means adapted to create in each said space, when the conductive liquid is within said space, an electric current of high intensity and of direction substantially perpendicular to the surface defined by the longitudinal directions of the walls of the blades which define said space, and magnetic field generating means for generating a magnetic field having, at each space, a direction transverse with respect to said walls of the blades which define said space, so that said magnetic field and said electric current create in each space a Laplace force of substantially tangential direction to the walls of the blades which define that space, said force being oriented from said first towards said second end, said electric current generating means being independent of the said conductive liquid.
Claim 2
Dependent Claim 207 words
Device for increasing the pressure of an electrically conducting liquid, comprising, in combination, a crown of elongated and curved blades which are each electrically insulated and adjacent blades of which crown define between themselves a space for the passage of said liquid between a first end and a second end opposite the first in the direction of the length of the blades, inlet means for bringing the conductive liquid to the first end of each said space, electric current generating means adapted to create in each said space, when the conductive liquid is within said space, an electric current of high intensity and of direction substantially perpendicular to the surface defined by the longitudinal directions of the walls of the blades which define said space, and magnetic field generating means for generating a magnetic field having, at each space, a direction transverse with respect to said walls of the blades which define said space, so that said magnetic field and said electric current create in each space a Laplace force of substantially tangential direction to the walls of the blades which define that space, said force being oriented from said first towards said second end, said electric current generating means being independent of the said conductive liquid.
Claim 3
Dependent Claim 114 words
Device according to claim 1, wherein the blades of the crown are arranged so that two neighboring blades, defining a channel between themselves, are developed from one another by rotation through a given angle about a given axis, each blade having the shape of a wall of a cylinder whose axis is parallel to and distinct from said given axis, the current generating means being adapted to create an electric current whose current lines are, in the spaces separating the blades, parallel to said given axis and Said magnetic field generating means being arranged so that said magnetic field is, in said spaces, of direction a substantially radial with respect to said given axis.
Claim 4
Dependent Claim 42 words
Device according to claim 2, wherein at the level of said spaces, the crown is defined by walls of directions substantially perpendicular to said given axis, at least one of said walls comprising insulating layers in the end parts of the spaces.
Claim 5
Dependent Claim 199 words
A unipolar dynamo for generating an electrical current of very high intensity, said dynamo comprising a solid rotor which has a mass of high inertia and a conductive mass of revolution, a stator comprising a conductive mass arranged so as to present two surfaces of revolution each facing a corresponding face of the conductive mass of revolution of the rotor, each said surface being separated from the corresponding face by an air gap, said conductive mass of the stator being at least partly laminated, and means for the injection of a conductive liquid between the air gaps, said injection means comprising an electromagnetic device for increasing the pressure of said conductive liquid, said electromagnetic pressure-increasing device forming an integral part of the stator of said unipolar dynamo and being arranged so that electromagnetic device is actuated, on one hand, by the magnetic field of the dynamo and, on the other hand, by the electrical current which passes through the latter, said electromagnetic device being situated in a region of the stator where the current which passes through the dynamo, when the conductive liquid is injected in said air gaps, is substantially perpendicular to the magnetic field in said stator.
Claim 6
Dependent Claim 199 words
A unipolar dynamo for generating an electrical current of very high intensity, said dynamo comprising a solid rotor which has a mass of high inertia and a conductive mass of revolution, a stator comprising a conductive mass arranged so as to present two surfaces of revolution each facing a corresponding face of the conductive mass of revolution of the rotor, each said surface being separated from the corresponding face by an air gap, said conductive mass of the stator being at least partly laminated, and means for the injection of a conductive liquid between the air gaps, said injection means comprising an electromagnetic device for increasing the pressure of said conductive liquid, said electromagnetic pressure-increasing device forming an integral part of the stator of said unipolar dynamo and being arranged so that electromagnetic device is actuated, on one hand, by the magnetic field of the dynamo and, on the other hand, by the electrical current which passes through the latter, said electromagnetic device being situated in a region of the stator where the current which passes through the dynamo, when the conductive liquid is injected in said air gaps, is substantially perpendicular to the magnetic field in said stator.
Claim 7
Dependent Claim 127 words
Dynamo according to claim 4, wherein the pressureincreasing device of the conductive liquid has the shape of a crown of blades, each blade of said crown being electrically insulated, said crown comprising an axis which coincides with the axis of rotation of the rotor, each blade having the shape of a part of the wall of a cylinder whose axis is parallel to the axis of the rotor, two neighboring blades being developed from one another by rotation through a given angle around the axis of the rotor, said blades being arranged in a region of the stator where the current which passes through the dynamo when the conductive liquid is injected, is parallel to the axis of the rotor and where the magnetic field is radial.

References Cited (Backward Citations)

US2716943A Cited
US2811107A Cited
US2990485A Cited
US2988000A Cited
US2982214A Cited
US3030888A Cited
US3176169A Cited
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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1977-12-09 1978-06-10 1978-12-10 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1981-12-09 1982-06-10 1982-12-10 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1985-12-09 1986-06-10 1986-12-10 $7700.00 Window Closed / Lapsed

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