US3249775A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid-circulation cooling device for the rotors of high-power turbo-alternators rotating at high speed
Assignee: Individual
•
Filing: 1962-11-19
•
Granted: 1966-05-03
•
Expires: 1982-11-19
Abstract
No abstract record available.
Inventors
- 👤 Baylac Marcel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:25
CPC Classifications
H; H02; H02K; H02K3/00; H02K3/04; H02K3/22; H02K3/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
132 words
LIQUID CIRCULATION COOLING DEVICE FOR THE ROTOR OF A TURBO-ALTERNATOR COMPRISING A ROTOR, WINDINGS IN AND OUTSIDE OF THE ROTOR, A STATOR, A GAP BETWEEN THE ROTOR AND THE STATOR, AND AN INSULATING SLEEVE SURROUNDING THE ROTOR IN THE GAP, FORMING A FLUID TUPE BARRIER, AN ANNULAR CHAMBER ON EACH SIDE OF THE ROTOR, COLLARS FIXED TO THE ROTOR FORMING PERIPHERAL WALLS SURROUNDING THE WINDINGS OUTSIDE THE ROTOR, DUCT BETWEEN THE CHAMBERS FOR EACH CONDUCTOR OF THE WINDINGS IN THE ROTOR, ONE OF THE CHAMBERS BEING OF SMALLER INTERNAL DIAMETER THAN THE OTHER CHAMBER, AND AT LEAST ONE FIXED INJECTOR FEEDING LIQUID AT LOW PRESSURE TO THE SMALLER DIAMETER CHAMBER WHEREBY FORCED CIRCULATION OF LIQUID FROM THE SMALLER DIAMETER CHAMBER TO THE OTHER CHAMBER IS PRODUCED BY PRESSSURE ESTABLISHED BY CENTRIFUGAL FORCE.
Claim 2
Dependent Claim
132 words
LIQUID CIRCULATION COOLING DEVICE FOR THE ROTOR OF A TURBO-ALTERNATOR COMPRISING A ROTOR, WINDINGS IN AND OUTSIDE OF THE ROTOR, A STATOR, A GAP BETWEEN THE ROTOR AND THE STATOR, AND AN INSULATING SLEEVE SURROUNDING THE ROTOR IN THE GAP, FORMING A FLUID TUPE BARRIER, AN ANNULAR CHAMBER ON EACH SIDE OF THE ROTOR, COLLARS FIXED TO THE ROTOR FORMING PERIPHERAL WALLS SURROUNDING THE WINDINGS OUTSIDE THE ROTOR, DUCT BETWEEN THE CHAMBERS FOR EACH CONDUCTOR OF THE WINDINGS IN THE ROTOR, ONE OF THE CHAMBERS BEING OF SMALLER INTERNAL DIAMETER THAN THE OTHER CHAMBER, AND AT LEAST ONE FIXED INJECTOR FEEDING LIQUID AT LOW PRESSURE TO THE SMALLER DIAMETER CHAMBER WHEREBY FORCED CIRCULATION OF LIQUID FROM THE SMALLER DIAMETER CHAMBER TO THE OTHER CHAMBER IS PRODUCED BY PRESSSURE ESTABLISHED BY CENTRIFUGAL FORCE.
References Cited (Backward Citations)
US2369795A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-05-02 | 1969-11-01 | 1970-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-02 | 1973-11-01 | 1974-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-02 | 1977-11-01 | 1978-05-03 | $7700.00 | Window Closed / Lapsed |