Patent US3740948A successfully refreshed from Google Patents.
US3740948A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hot gas generator employing rotary turbine
Assignee: CAV Ltd
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Filing: 1971-04-08
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Granted: 1973-06-26
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Expires: 1991-04-08
Abstract
Abstract A hot gas generator includes a combustion chamber the heated gases from which drives a turbine the combustion chamber being provided with air/fuel mixture for burning therein by a compressor driven by the turbine. A second compressor is provided to supply dilution fluid in the form of an air/fuel mixture. The dilution fluid together with the heated gases leaving the combustion chamber are maintained at a speed which is higher than the flame speed and the combustion of the air/fuel mixture which constitutes the dilution fluid takes place in a second combustion chamber which includes a divergent portion whereby the velocity of the gases is reduced below the flame speed.
Inventors
- 👤 E Kellett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 04:06
CPC Classifications
F; F02; F02C; F02C7/00; F02C7/22; F02C6/00; F02C6/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
178 words
A hot gas generator comprising a combustion chamber, an air/fuel mixture burner disposed in the combustion chamber, a first compressor for delivering air/fuel mixture to said burner, a second compressor for delivering air as dilution fluid to the combustion chamber for cooling the heated gases produced by the burner, a turbine coupled to said compressors for driving same, said turbine being driven by the heated gases leaving the combustion chamber, means for mixing fuel with the air flowing through said second compressor, so that the dilution fluid is an air/fuel mixture, and a second combustion chamber disposed downstream of the turbine, said second combustion chamber having a divergent portion, the generator being so arranged that the velocity of the hot gases after the mixing of the dilution fluid therewith is higher than the flame speed of the air/fuel mixture constituting the dilution fluid, the velocity of the gases entering the second combustion chamber falling therein to a velocity lower than the flame speed thereby allowing combustion of the air/fuel mixture to take place within the second combustion chamber.
Claim 2
Dependent Claim
178 words
A hot gas generator comprising a combustion chamber, an air/fuel mixture burner disposed in the combustion chamber, a first compressor for delivering air/fuel mixture to said burner, a second compressor for delivering air as dilution fluid to the combustion chamber for cooling the heated gases produced by the burner, a turbine coupled to said compressors for driving same, said turbine being driven by the heated gases leaving the combustion chamber, means for mixing fuel with the air flowing through said second compressor, so that the dilution fluid is an air/fuel mixture, and a second combustion chamber disposed downstream of the turbine, said second combustion chamber having a divergent portion, the generator being so arranged that the velocity of the hot gases after the mixing of the dilution fluid therewith is higher than the flame speed of the air/fuel mixture constituting the dilution fluid, the velocity of the gases entering the second combustion chamber falling therein to a velocity lower than the flame speed thereby allowing combustion of the air/fuel mixture to take place within the second combustion chamber.
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) | 1976-06-25 | 1976-12-25 | 1977-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-25 | 1980-12-25 | 1981-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-25 | 1984-12-25 | 1985-06-26 | $7700.00 | Window Closed / Lapsed |