US6573626B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for uninterruptedly supplying power including an electrical machine and a flywheel
Assignee: Piller Group GmbH
•
Filing: 1999-10-08
•
Granted: 2003-06-03
•
Expires: 2019-10-08
Abstract
Abstract An apparatus for uninterruptedly supplying power includes an electrical machine including a rotor and being designed and arranged to be connected to a load to be supplied with alternating current. Coupling units include a differential transmission including three input/output shafts. A flywheel is designed and arranged to store kinetic energy and to be connected to the rotor by the coupling units. Control units include a controllable brake and at least one electrical auxiliary machine to be operated as a motor. The electrical auxiliary machine and the controllable brake engage the third input/output shaft. The control units keep the number of rotations of the electrical machine approximately constant when the electrical machine is operated as a generator by kinetic energy being stored in the flywheel. The control units are being designed and arranged to operate the electrical auxiliary machine as a motor to realize a desired final number of rotations of the flywheel during operation of the electrical machine as a motor.
Inventors
- 👤 Harald Gosebruch
- 👤 Norbert Ueffing
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 06:31
CPC Classifications
H; H02; H02J; H02J9/00; H02J9/04; H02J9/06; H02J9/066; Y; Y02; Y02B; Y02B10/00; Y02B10/70
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
294 words
An apparatus for uninterruptedly supplying power, comprising: an electrical machine including a rotor and being designed and arranged to be operated as a motor and as a generator and to be connected to a load to be supplied with alternating current without a converter having a variable feed frequency being arranged between said electrical machine and the load; coupling units having a variable ratio of transmission and including a differential transmission, said differential transmission including a first input/output shaft, a second input/output shaft and a third input/output shaft; a flywheel being designed and arranged to store kinetic energy and to be connected to said rotor by said coupling units; and control units being designed and arranged for the transmission of said coupling units and including a controllable brake and an electrical auxiliary machine being designed and arranged to be operated as a motor, said electrical auxiliary machine and said controllable brake being designed and arranged to engage said third input/output shaft of said differential transmission, said control units being designed and arranged to keep the number of rotations of said electrical machine constant at least in a certain range of the number of rotations of said flywheel when said electrical machine is operated as a generator by kinetic energy being stored in said flywheel, and said control units being designed and arranged in a way that said electrical auxiliary machine is operated as a motor to reach a desired final number of rotations of said flywheel when said electrical auxiliary machine is operated as a motor and that said electric auxiliary machine is continuously operated as a motor at full speed to maintain the desired final number of rotations of said flywheel as long as said electric auxiliary machine is operated as a motor.
Claim 2
Independent Claim
294 words
An apparatus for uninterruptedly supplying power, comprising: an electrical machine including a rotor and being designed and arranged to be operated as a motor and as a generator and to be connected to a load to be supplied with alternating current without a converter having a variable feed frequency being arranged between said electrical machine and the load; coupling units having a variable ratio of transmission and including a differential transmission, said differential transmission including a first input/output shaft, a second input/output shaft and a third input/output shaft; a flywheel being designed and arranged to store kinetic energy and to be connected to said rotor by said coupling units; and control units being designed and arranged for the transmission of said coupling units and including a controllable brake and an electrical auxiliary machine being designed and arranged to be operated as a motor, said electrical auxiliary machine and said controllable brake being designed and arranged to engage said third input/output shaft of said differential transmission, said control units being designed and arranged to keep the number of rotations of said electrical machine constant at least in a certain range of the number of rotations of said flywheel when said electrical machine is operated as a generator by kinetic energy being stored in said flywheel, and said control units being designed and arranged in a way that said electrical auxiliary machine is operated as a motor to reach a desired final number of rotations of said flywheel when said electrical auxiliary machine is operated as a motor and that said electric auxiliary machine is continuously operated as a motor at full speed to maintain the desired final number of rotations of said flywheel as long as said electric auxiliary machine is operated as a motor.
Claim 3
Dependent Claim
21 words
The apparatus of claim 1 ,wherein said electrical auxiliary machine is designed and arranged to be operated as said controllable brake.
Claim 4
Dependent Claim
22 words
The apparatus of claim 1 , wherein said electrical auxiliary machine is designed and arranged to be operated as said controllable brake.
Claim 5
Dependent Claim
15 words
The apparatus of claim 1 , wherein said electrical auxiliary machine is an asynchronous machine.
Claim 6
Dependent Claim
38 words
The apparatus of claim 1 , further comprising a converter being designed and arranged to connect said electrical auxiliary machine to said electrical machine and to the load, and wherein said electrical auxiliary machine is a synchronous machine.
Claim 7
Dependent Claim
19 words
The apparatus of claim 1 , further comprising a combustion engine being designed and arranged to drive said rotor.
Claim 8
Dependent Claim
31 words
The apparatus of claim 6 , further comprising a clutch being arranged between said rotor and said combustion engine and being designed and arranged to be switched by said control units.
Claim 9
Dependent Claim
49 words
The apparatus of claim 7 , further comprising a second differential transmission and a second electrical auxiliary machine, said second differential transmission being arranged between said rotor and said combustion engine and said third input/output shaft of said first differential transmission being coupled to said second electrical auxiliary machine.
Claim 10
Dependent Claim
17 words
The apparatus of claim 8 , wherein said combustion engine does not include a separate starter motor.
Claim 11
Dependent Claim
20 words
The apparatus of claim 6 , further comprising an overrunning clutch being arranged between said rotor and said combustion engine.
Claim 12
Dependent Claim
49 words
The apparatus of claim 10 , further comprising a second differential transmission and a second electrical auxiliary machine, said second differential transmission being arranged between said rotor and said combustion engine and said third input/output shaft of said first differential transmission being coupled to said second electrical auxiliary machine.
Claim 13
Dependent Claim
49 words
The apparatus of claim 6 , further comprising a second differential transmission and a second electrical auxiliary machine, said second differential transmission being arranged between said rotor and said combustion engine and said third input/output shaft of said first differential transmission being coupled to said second electrical auxiliary machine.
Claim 14
Dependent Claim
17 words
The apparatus of claim 12 , wherein said combustion engine does not include a separate starter motor.
References Cited (Backward Citations)
US2376421A
Cited
US3221172A
Cited
US3609426A
Cited
US4278928A
Cited
US4233858A
Cited
DE3002945A1
Cited
US4525661A
Cited
US4439720A
Cited
US4382188A
Cited
US4423794A
Cited
US4517471A
Cited
DE3129928A1
Cited
US4857755A
Cited
US5194757A
Cited
DE4442948A1
Cited
US5913932A
Cited
US6133716A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2006-06-02 | 2006-12-02 | 2007-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2010-06-02 | 2010-12-02 | 2011-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2014-06-02 | 2014-12-02 | 2015-06-03 | $7700.00 | Window Closed / Lapsed |