Patent US5011820A successfully refreshed from Google Patents.
US5011820A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Superconducting current accumulator with pulsed output
Assignee: Heidelberg Motor GmbH
•
Filing: 1988-11-18
•
Granted: 1991-04-30
•
Expires: 2008-11-18
Abstract
Abstract A process for supplying a current consumer with current from an accumulator for electrical energy, in which electrical energy pulses of very short duration each are supplied to the current consumer from a superconducting accumulator (2) made with superconductors (8) of very small diameter or very small layer thickness. The superconductors (8) are preferably high-temperature superconductors.
Inventors
- 👤 Peter Ehrhart
- 👤 Andreas Grundel
- 👤 Gotz Heidelberg
- 👤 Wener Weck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 04:35
CPC Classifications
H; H01; H01F; H01F6/00; Y; Y10; Y10S; Y10S336/00; Y10S336/01; Y10S505/00; Y10S505/70; Y10S505/701; Y10S505/703; Y10S505/825; Y10S505/869; Y10S505/87
Claims Analysis
Total Claims: 39
Claim 1
Independent Claim
60 words
A process for supplying a current consumer with current, comprising the steps of: storing energy in a superconducting accumulator coil having thin superconductors; and electrically connecting the accumulator coil to the current consumer via at least one switch which is opened and closed at high frequency to supply the current consumer with DC pulses of high power and short duration.
Claim 2
Dependent Claim
60 words
A process for supplying a current consumer with current, comprising the steps of: storing energy in a superconducting accumulator coil having thin superconductors; and electrically connecting the accumulator coil to the current consumer via at least one switch which is opened and closed at high frequency to supply the current consumer with DC pulses of high power and short duration.
Claim 3
Dependent Claim
19 words
A process according to claim 1, wherein the pulse duration of the DC pulses is less than 10 ms.
Claim 4
Dependent Claim
19 words
A process according to claim 2, wherein the pulse duration of the DC pulses is less than 5 ms.
Claim 5
Dependent Claim
19 words
A process according to claim 3, wherein the pulse duration of the DC pulses is less than 1 ms.
Claim 6
Dependent Claim
88 words
A current accumulator for accumulating electrical energy and for supplying a current consumer with electrical current, comprising: a superconducting accumulator coil having thin superconductors; and pulse discharge means for selectively connecting the accumulator coil to the current consumer to supply the current consumer with DC pulses of high energy and short duration, the pulse discharge means including at least one switch which is opened and closed at high frequency and which electrically connects the accumulator coil to the current consumer when that at least one switch is closed.
Claim 7
Dependent Claim
88 words
A current accumulator for accumulating electrical energy and for supplying a current consumer with electrical current, comprising: a superconducting accumulator coil having thin superconductors; and pulse discharge means for selectively connecting the accumulator coil to the current consumer to supply the current consumer with DC pulses of high energy and short duration, the pulse discharge means including at least one switch which is opened and closed at high frequency and which electrically connects the accumulator coil to the current consumer when that at least one switch is closed.
Claim 8
Dependent Claim
23 words
A current accumulator according to claim 5, wherein the superconductors are high-temperature superconductors having a transition temperature of at least about 80° K.
Claim 9
Dependent Claim
18 words
A current accumulator according to claim 5, wherein the superconductors having a diameter of less than 20 μm.
Claim 10
Dependent Claim
26 words
A current accumulator according to claim 5, wherein the superconductors are provided in the form of layers, each having a layer thickness of less than 20μm.
Claim 11
Dependent Claim
29 words
A current accumulator according to claim 5, wherein the superconductors are formed from a layer applied across a large area, by local mechanical removal of material from the layer.
Claim 12
Dependent Claim
26 words
A current accumulator according to claim 5, wherein, when viewing the accumulator coil cross-section, several superconductor layers are provided following each other in the radial direction.
Claim 13
Dependent Claim
37 words
A current accumulator according to claim 10, wherein the accumulator coil additionally comprises insulating intermediate layers, and wherein the superconductor layers are formed successively, with an insulating intermediate layer being provided therebetween, and are each electrically terminated.
Claim 14
Dependent Claim
17 words
A current accumulator according to claim 5, wherein the accumulator coil comprises wound, thin, superconducting filament wires.
Claim 15
Dependent Claim
35 words
A current accumulator according to claim 12, wherein the accumulator coil further comprises thin normal-conduction wires, and wherein the superconducting filament wires are provided substantially in an alternating manner with the thin normal-conduction metal wires.
Claim 16
Dependent Claim
23 words
A current accumulator according to claim 5, wherein the accumulator coil comprises a plurality of successive coil segments in the longitudinal direction thereof.
Claim 17
Dependent Claim
23 words
A current accumulator according to claim 14, wherein the coil segments are individually prefabricated and are then joined to form the accumulator coil.
Claim 18
Dependent Claim
14 words
A current accumulator according to claim 14, wherein the coil segments are magnetically coupled.
Claim 19
Dependent Claim
44 words
A current accumulator according to claim 14, wherein the coil segments are connected in such a manner that the accumulator coil can be charged in a series connection of the coil segments and discharged in a parallel connection of all of the coil segments.
Claim 20
Dependent Claim
15 words
A current accumulator according to claim 5, wherein the accumulator coil is of toroidal configuration.
Claim 21
Dependent Claim
19 words
A current accumulator according to claim 5, wherein the accumulator coil is connected to a primary circuit for charging.
Claim 22
Dependent Claim
27 words
A current accumulator according to claim 5, further comprising charging means for charging the accumulator coil by introducing magnetic flow quanta according to the flow pump principle.
Claim 23
Dependent Claim
28 words
A current accumulator according to claim 5, further comprising charging means for charging the accumulator coil, the charging means including means for producing a pulsating DC magnetic field.
Claim 24
Dependent Claim
32 words
A current accumulator according to claim 21, wherein the accumulator coil is toroidal and wherein the means for producing a pulsating DC magnetic field comprises a rotatable magnet ring having permanent magnets.
Claim 25
Dependent Claim
33 words
A current accumulator according to claim 21, wherein the means for producing a pulsating DC magnetic field comprises a current conductor which produces a pulsating field, the accumulator coil being charged by induction.
Claim 26
Dependent Claim
27 words
A current accumulator according to claim 5, wherein the ratio between the radial thickness of the space equipped with superconductors and the accumulator coil diameter is small.
Claim 27
Dependent Claim
18 words
A current accumulator according to claim 5, wherein the accumulator coil comprises a core composed of superconducting material.
Claim 28
Dependent Claim
43 words
A current accumulator according to claim 25, further comprises state transition means for altering the current intensity in the accumulator coil by causing a transition of the superconducting material of the core from the superconducting state to the normal-conduction state and vice versa.
Claim 29
Dependent Claim
22 words
A current accumulator according to claim 26, wherein the state transition means comprises means for applying a magnetic field to the core.
Claim 30
Dependent Claim
23 words
A current accumulator according to claim 5, wherein the accumulator coil comprises at least one superconducting discharging coil magnetically coupled to the superconductors.
Claim 31
Dependent Claim
31 words
A current accumulator as claimed in claim 5, wherein the superconductors are less than about 20 μm thick and wherein each pulse has a duration of less than about 10 ms.
Claim 32
Dependent Claim
23 words
A current accumulator according to claim 5, wherein the superconductors are formed by local etching from a layer applied across a wide area.
Claim 33
Dependent Claim
44 words
A current accumulator according to claim 14, wherein the coil segments are connected in such a manner that the accumulator coil can be charged in a series connection of the coil segments and discharged in a parallel connection of some of the coil segments.
Claim 34
Dependent Claim
15 words
A current accumulator according to claim 5, wherein the accumulator coil is of solenoid configuration.
Claim 35
Dependent Claim
22 words
A current accumulator according to claim 26, wherein the state transition means comprises means for introducing a current pulse into the core.
Claim 36
Dependent Claim
22 words
A current accumulator according to claim 26, wherein the state transition means comprises means for irradiating a radio-frequency field into the core.
Claim 37
Dependent Claim
21 words
A current accumulator according to claim 26, wherein the state transition means comprises means for irradiating thermal radiation in the core.
Claim 38
Dependent Claim
25 words
A current accumulator according to claim 26, wherein the state transition means comprises means for subjecting the core to the influence of a laser beam.
Claim 39
Dependent Claim
25 words
A current accumulator according to claim 26, wherein the state transition means comprises means for subjecting the core to the influence of a maser beam.
References Cited (Backward Citations)
GB1001499A
Cited
US3205461A
Cited
US3395000A
Cited
US3667029A
Cited
FR2112054A1
Cited
US4122512A
Cited
US3800256A
Cited
US4032959A
Cited
US4195334A
Cited
US4337905A
Cited
US4336561A
Cited
US4493014A
Cited
US4414461A
Cited
US4584518A
Cited
US4609831A
Cited
US4599519A
Cited
US4695932A
Cited
US4920095A
Cited
US4939444A
Cited
US4954727A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-04-29 | 1994-10-29 | 1995-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-04-29 | 1998-10-29 | 1999-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-04-29 | 2002-10-29 | 2003-04-30 | $7700.00 | Window Closed / Lapsed |