US3561216A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermal stress controlled loading of steam turbine-generators
Assignee: General Electric Co
•
Filing: 1969-03-19
•
Granted: 1971-02-09
•
Expires: 1989-03-19
Abstract
Abstract IN A STEAM TURBINE-GENERATOR WITH MEANS FOR SETTING LOAD IN ACCORDANCE WITH A LOAD REFERENCE SIGNAL AND WITH ADDITIONAL MEANS FOR TRANSFERRING BETWEEN FULL ARC AND PARTIAL ARC MODE OF STEAM ADMISSION, THE ROTOR STRESSES ARE CONTINUOUSLY CALCULATED AND SET THE RATE OF LOADING THE STEAM TURBINE. THE TYPE OF STEAM NOZZLE ADMISSION BETWEEN FULL ARC AND PARTIAL ARC IS ADDITIONALLY CONTROLLED IN ACCORDANCE WITH A MODE REFERENCE SIGNAL SO AS TO MINIMIZE THE THERMAL STRESS DIFFERENCES BETWEEN HIGH PRESSURE AND REHEAT ROTORS IN ORDER TO REDUCE THE TURBINE LOADING TIME.
Inventors
- 👤 James H Moore Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:26
CPC Classifications
F; F01; F01K; F01K7/00; F01K7/16; F01K7/22; F01K7/24; F01D; F01D17/00; F01D17/10; F01D17/12; F01D17/18; F01D19/00; F01D19/02
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-02-08 | 1974-08-10 | 1975-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-08 | 1978-08-10 | 1979-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-08 | 1982-08-10 | 1983-02-09 | $7700.00 | Window Closed / Lapsed |