Apparatus and method of generating momentum using superconducting coils

Patent metadata

Field	Value
Publication number	US-10373750-B2
Application number	US-201514749038-A
Country	US
Kind code	B2
Filing date	Jun 24, 2015
Priority date	Oct 31, 2014
Publication date	Aug 6, 2019
Grant date	Aug 6, 2019

Abstract

The present invention relates to an apparatus of generating momentum which drives an object. The present invention provides a momentum generating apparatus in which a pair of high temperature superconducting coils which are wound in different directions and have different superconducting properties are arranged in parallel and the same current flows in the pair of coils to be in a stable state where magnetic fields generated in the coils are cancelled and an asymmetric current is suddenly applied to the pair of coils through a switching operation to generate a magnetic field and an eddy current is induced in a plate due to the generated magnetic field and the plate is floated using a repulsive force between the magnetic field generated in the plate due to the eddy current and the magnetic field generated in the pair of coils, to instantaneously generate force using a small amount of superconducting coils.

First claim

What is claimed is:

1. A momentum generating apparatus using a superconducting coil, the apparatus comprising:
a superconducting unit which includes a pair of a first superconducting coil unit and a second superconducting coil unit which are wound in different directions, have different superconductive properties, and are arranged in parallel;
a power supply which supplies an AC power to the superconducting unit;
a switching unit which is connected to the superconducting unit and closes or opens a circuit in accordance with manipulation;
a plate which is configured by a conductor, wherein the plate is disposed to be parallel to the first superconducting coil unit and the second superconducting coil unit of the superconducting unit; and
a supporting unit which fixes positions of the first superconducting coil unit and the second superconducting coil unit to be parallel to the plate and guides movement of the plate when the plate moves in a specific direction due to a repulsive force between the superconducting unit and the plate,
wherein when the switching unit is turned on to connect circuits at both sides of the switching unit, the superconducting unit instantaneously generates a predetermined amount or more of a magnetic field within a predetermined time.

2. The apparatus of claim 1 , wherein the first superconducting coil unit and the second superconducting coil unit are high temperature superconductors which are objects whose critical temperature for having a superconductive property is set to a predetermined temperature or higher.

3. The apparatus of claim 1 , wherein the first superconducting coil unit and the second superconducting coil unit are wound in opposite directions, so that the superconducting unit has a non-inductive property.

4. The apparatus of claim 1 , wherein the first superconducting coil unit and the second superconducting coil unit are superconductors having different critical currents and different N coefficients and are connected in parallel.

5. The apparatus of claim 1 , further comprising:
a first resistor which is connected to the superconducting unit in series,
wherein the switching unit is connected to the first resistor in parallel, and when the switching unit is turned on, circuits at both sides of the switching unit are connected and when the switching unit is turned off, a current which flows through the first resistor.

6. The apparatus of claim 5 , wherein the superconducting unit includes a first adjustment resistor which is connected to the first superconducting coil unit in series and a second adjustment resistor which is connected to the second superconducting coil unit in series to adjust current amounts which flow in the first superconducting coil unit and the second superconducting coil unit.

7. The apparatus of claim 6 , wherein the first adjustment resistor and the second adjustment resistor have resistances which are lower than resistance of the first resistor at a predetermined rate or lower.

8. The apparatus of claim 5 , wherein the current flowing through the first resistor when the switching unit is turned off is a first current, and
wherein when the switching unit is turned off, the circuits at both sides of the switching unit are disconnected and the first current flows through the first resistor in accordance with a voltage which is applied by the power supply, and a second current and a third current flow through in the first superconducting coil unit and the second superconducting coil unit, respectively, each of the second and third currents having a predetermined reference value or lower so that the first superconducting coil unit and the second superconducting coil unit are maintained to be in a superconductive state.

9. The apparatus of claim 8 , wherein when the switching unit is turned off, a first amount of the second current which flows through the first superconducting coil unit and a second amount of the second current which flows through the second superconducting coil unit are equal to each other, or a difference between the first and second amounts is a predetermined reference value or less, and a magnetic field generated by the first superconducting coil unit and a magnetic field generated by the second superconducting coil unit are cancelled by each other.

10. The apparatus of claim 5 , wherein the current flowing through the first resistor when the switching unit is turned off is a first current, and
wherein when the switching unit is turned on, the circuits at both sides of the switching unit are connected and a second current flows through the switching unit, instead of the first resistor, in accordance with a voltage which is applied by the power supply, a third current and a fourth current flow through in the first superconducting coil unit and the second superconducting coil unit, respectively, each of the third and fourth currents having a predetermined reference value or higher to break a superconductive state of each of the first superconducting coil unit and the second superconducting coil unit, and a resistance of a self-resistor of the first superconducting coil unit and a resistance of a self-resistor of the second superconducting coil unit are increased at different speeds during a predetermined time after the switching unit is turned on.

11. The apparatus of claim 10 , wherein when the switching unit is turned on, during a predetermined time after the switching unit is turned on, a difference between a first amount of the third current which flows through the first superconducting coil unit and a second amount of the fourth current which flows through the second superconducting coil unit is equal to or larger than a predetermined reference value, so that the third current and the fourth current asymmetrically flow through in the first superconducting coil unit and the second superconducting coil unit, respectively, and a magnetic field generated by the first superconducting coil unit and a magnetic field generated by the second superconducting coil unit are not cancelled.

12. The apparatus of claim 1 , wherein an eddy current is generated in the plate due to the magnetic field which is instantaneously generated in the superconducting unit within the predetermined time, a predetermined amount or more of magnetic field is instantaneously generated in the plate within a predetermined time due to the generated eddy current, and the magnetic field generated in the plate due to the eddy current and the magnetic field generated in the superconducting unit have opposite directions and generate the repulsive force between the plate and the superconducting unit.

Assignees

• Univ Yonsei Iacf

Inventors

• Ko Tae Kuk
• Lee Ji Ho
• Lee Woo Seung
• Kim Hyung Jun
• Nam Seok Ho
• Park Young Gun
• Kim Jin Sub

Classifications

• H01F6/008

  Electric circuit arrangements for energising superconductive electromagnets · CPC title

• H01F6/06 Primary

  Coils, e.g. winding, insulating, terminating or casing arrangements therefor · CPC title

• H10N60/355

  Power cryotrons · CPC title

• H01H77/00

  Protective overload circuit-breaking switches operated by excess current and requiring separate action for resetting (H01H73/00, H01H75/00 take precedence) · CPC title

• H01H73/18

  Means for extinguishing or suppressing arc {(magnet coil acting as blow-out device H01H71/38)} · CPC title