Patent US5721459A successfully refreshed from Google Patents.
US5721459A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Output voltage regulation using rotor growth
Assignee: FCA US LLC
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Filing: 1996-05-02
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Granted: 1998-02-24
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Expires: 2016-05-02
Abstract
Abstract The present invention is an energy storage apparatus. The energy storage apparatus includes a stator that is stationary. The stator includes a winding encircling the stator for generating an output voltage. The energy storage apparatus also includes a rotor rotating relative to the stator. The rotor includes a plurality of magnets on a surface of the rotor adjacent to the stator. The rotor and stator include a gap between the magnets and the stator. The magnets are a source for the output voltage generated in the winding. The output voltage generated is dependent on the gap and the speed of the rotor. The energy storage apparatus uses centrifugal growth to regulate the output voltage.
Inventors
- 👤 Gita P. Rao
- 👤 Richard L. Hockney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 12:59
CPC Classifications
H; H02; H02K; H02K21/00; H02K21/02; H02K21/021; H02K21/022; H02K21/025; B; B60; B60L; B60L3/00; B60L3/0023; B60L3/0061; B60L50/00; B60L50/10; B60L50/13; B60L50/30; B60L50/50; B60L50/60; B60L50/66; H02K1/00; H02K1/06; H02K1/22; H02K1/27; H02K1/2786; H02K1/2787; H02K1/2789; H02K1/2791; H02K7/00; H02K7/02; H02K7/025; B60L2220/00; B60L2220/10; B60L2220/12; B60L2240/00; B60L2240/10; B60L2240/36; Y; Y02; Y02E; Y02E60/00; Y02E60/16; Y02T; Y02T10/00; Y02T10/60; Y02T10/64; Y02T10/70; Y02T10/7072; Y10; Y10T; Y10T74/00; Y10T74/21; Y10T74/2117; Y10T74/2119
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
104 words
An energy storage apparatus comprising: a stator that is stationary; a winding encircling said stator for generating an output voltage; a rotor rotatable relative to the stator; a plurality of magnets disposed on a surface of said rotor and adjacent to said stator; a plurality of masses disposed on the surface axially of said magnets; a gap between said magnets and said stator; said magnets being a source for said output voltage generated in said winding; the output voltage generated being dependent on said gap and a speed of said rotor; and said energy storage apparatus using centrifugal growth to regulate said output voltage.
Claim 2
Dependent Claim
104 words
An energy storage apparatus comprising: a stator that is stationary; a winding encircling said stator for generating an output voltage; a rotor rotatable relative to the stator; a plurality of magnets disposed on a surface of said rotor and adjacent to said stator; a plurality of masses disposed on the surface axially of said magnets; a gap between said magnets and said stator; said magnets being a source for said output voltage generated in said winding; the output voltage generated being dependent on said gap and a speed of said rotor; and said energy storage apparatus using centrifugal growth to regulate said output voltage.
Claim 3
Dependent Claim
15 words
The energy storage apparatus of claim 1, wherein said energy storage apparatus is a flywheel.
Claim 4
Dependent Claim
24 words
The energy storage apparatus of claim 1 wherein said energy storage apparatus produces a reduced output voltage range over varying speeds of said rotor.
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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) | 2001-02-23 | 2001-08-25 | 2002-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-02-23 | 2005-08-25 | 2006-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-02-23 | 2009-08-25 | 2010-02-24 | $7700.00 | Window Closed / Lapsed |