Patent US3552876A successfully refreshed from Google Patents.
US3552876A
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US
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Pulse sensitive turbine nozzle
Assignee: Northrop Grumman Space and Mission Systems Corp
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Filing: 1968-06-12
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Granted: 1971-01-05
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Expires: 1988-06-12
Abstract
Abstract A RADIAL INFLOW TURBINE EFFECTIVE TO RECOVER BLOWDOWN ENERGY FROM THE EXHAUST PORTS OF AN INTERNAL COMBUSTION ENGINE WHICH HAS TWO MANIFOLDS FEEDING FROM THE EXHAUST PORTS TO THE TURBINE HOUSING, THE HOUSING HAVING AN INLET THROAT DIVIDED BY A WALL ONLY THROUGH THE EFFECTIVE NOZZLE AREA TO A POINT WHERE EXHAUST GASES HAVE BEEN ACCELERATED TO A MAXIMUM TANGENTIAL VELOCITY PRIOR TO ENTRY INTO THE TURBINE WHEEL, THE HOUSING THEREAFTER HAVING AN UNDIVIDED SINGLE CIRCUMFERENTIAL GAS FLOW CHAMBER SIZED TO PROVIDE UNIFORM DISTRIBUTION AT CONSTANT TANGENTIAL VELOCITY TO THE TURBINE VANES.
Inventors
- 👤 Stanley H Updike
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:58
CPC Classifications
F; F01; F01D; F01D9/00; F01D9/02; F01D9/026
Claims Analysis
Total Claims: 0
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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) | 1974-01-04 | 1974-07-06 | 1975-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-04 | 1978-07-06 | 1979-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-04 | 1982-07-06 | 1983-01-05 | $7700.00 | Window Closed / Lapsed |