US3671850A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric generator control system with radio feedback loop
Assignee: Individual
•
Filing: 1970-11-19
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Granted: 1972-06-20
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Expires: 1990-11-19
Abstract
Abstract The illustrated embodiments include an exciting generator and a power generator. Each of the generators includes a common tubular rotor. The armature of the exciting generator is maintained within the rotor and is fed through a control rectifier to the field of the power generator, which is also maintained within the rotor. The output voltage of the power generator is sampled for modulation of a radio transmitter which delivers power to a transmitting antenna. A receiving means maintained within the tubular rotor receives and demodulates the signal from the transmitter. The demodulated signal, together with the output of the field generator armature is applied to the control elements of the control rectifier and thus determines the intensity of the power generator field and, correspondingly, the output of the power generator.
Inventors
- 👤 Walter E Mehnert
- 👤 Horst A Heller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 06:13
CPC Classifications
H; H02; H02K; H02K19/00; H02K19/16; H02K19/26; H02K19/30; H02P; H02P9/00; H02P9/14; H02P9/36; H02P2101/00; H02P2101/30
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
220 words
An electrical generator system comprising a power generator, an exciting generator for supplying an exciTation voltage to the field of said power generator to control the magnetic field thereof, a common shaft for mounting said power generator and said exciting generator, controlled rectifier means for controlling the excitation voltage supplied to said field of said power generator, the range of excitation being variable between positive and negative values and the latter providing counterexcitation, radiofrequency transmitting means coupled to the output of said power generator including voltage regulator means connected to said power generator and means for producing a pulse-code modulated signal in accordance with the output of said generator, radiofrequency receiving means for receiving the pulse-code modulated signal produced by said transmitting means, electromagnetic means for electromagnetically coupling said transmitting means and said receiving means, and control means responsive to the output of said radio receiving means for controlling said controlled rectifier means and hence the excitation voltage supplied to said power generator, said system further comprising means for directly connecting the output of said exciting generator to the said control means to provide direct control of the excitation voltage in addition to the feedback control provided by said voltage regulator means, said control means and said connecting means being mounted within said shaft to provide shielding from external influences.
Claim 2
Dependent Claim
220 words
An electrical generator system comprising a power generator, an exciting generator for supplying an exciTation voltage to the field of said power generator to control the magnetic field thereof, a common shaft for mounting said power generator and said exciting generator, controlled rectifier means for controlling the excitation voltage supplied to said field of said power generator, the range of excitation being variable between positive and negative values and the latter providing counterexcitation, radiofrequency transmitting means coupled to the output of said power generator including voltage regulator means connected to said power generator and means for producing a pulse-code modulated signal in accordance with the output of said generator, radiofrequency receiving means for receiving the pulse-code modulated signal produced by said transmitting means, electromagnetic means for electromagnetically coupling said transmitting means and said receiving means, and control means responsive to the output of said radio receiving means for controlling said controlled rectifier means and hence the excitation voltage supplied to said power generator, said system further comprising means for directly connecting the output of said exciting generator to the said control means to provide direct control of the excitation voltage in addition to the feedback control provided by said voltage regulator means, said control means and said connecting means being mounted within said shaft to provide shielding from external influences.
Claim 3
Dependent Claim
31 words
A system as claimed in claim 1 further comprising means for connecting the voltage output of the armature of said exciting generator to said control means to provide coarse control thereof.
Claim 4
Dependent Claim
19 words
A system as claimed in claim 2 wherein said electromagnetic means comprises a transmitting antenna and a receiving antenna.
References Cited (Backward Citations)
US3412271A
Cited
US3401328A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-06-20 | 1975-12-20 | 1976-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-20 | 1979-12-20 | 1980-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-20 | 1983-12-20 | 1984-06-20 | $7700.00 | Window Closed / Lapsed |