US3552877A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Outlet housing for an axial-flow turbomachine
Assignee: Sulzer Escher Wyss AG
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Filing: 1969-02-14
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Granted: 1971-01-05
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Expires: 1989-02-14
Abstract
Abstract AN OUTLET HOUSING FOR AN AXIAL-FLOW TURBOMACHINE, HAVING AN AXIAL DIFFUSOR WITH ANNULAR CHANNEL, A DEFLECTOR TERMINATING IN RADIAL DIRECTION AND A RADIAL DIFFUSOR. THE FLOW CROSS-SECTION WITHIN THE DEFLECTOR DECREASES BY FROM 5% TO 15% IN DIRECTION OF FLOW. THE APERTURE ANGLE OF THE AXIAL DIFFUSOR IS AT LEAST 12* AND 55* AT THE MOST. WHEN THE AXIAL DIFFUSOR HAS A GREAT APERTURE ANGLE AND IS CORRESPONDINGLY SHORT, GUIDE WALLS ARE PROVIDED WITH THE DEFLECTOR AND THE RADIAL DIFFUSOR.
Inventors
- 👤 Alfred Christ
- 👤 Erhard Tomica
- 👤 Viktor Schreiber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 07:35
CPC Classifications
F; F01; F01D; F01D9/00; F01D25/00; F01D25/30; F01D9/02
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 |