US3924402A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combustion chamber for gas turbines and the like having a fluidized burner bed
Assignee: Individual
•
Filing: 1973-07-02
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Granted: 1975-12-09
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Expires: 1993-07-02
Abstract
Abstract A combustion chamber with a fluidised burner bed, preferably for gas turbines, comprising means for controlling the supply of fuel, combustion air and a cooling medium for the fluidised bed to maintain a predetermined proportional relationship therebetween constant under varying load conditions.
Inventors
- 👤 Henrik Harboe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:46
CPC Classifications
F; F02; F02C; F02C3/00; F02C3/20; F02C3/205
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
165 words
A combustion chamber for operating gas turbines and the like; comprising: a. a burner housing; b. a fluidized bed of particulate material within said burner housing; c. means for purging the combustion gas from said burner housing; d. a chamber surrounding said burner housing for receiving purged combustion gas from said burner; e. means for injecting fuel into said burner; f. means for introducing combustion air into said burner; g. a cooling chamber for receiving a cooling medium surrounding the purged combustion gas chamber; h. means for introducing a cooling medium into said cooling chamber; i. means for passing said cooling medium in a confined path through said fluidized bed in heat relationship therewith; j. means for passing said cooling medium and said purged combustion gas to a power out-put station, and k. means for maintaining a predetermined proportional relationship between combustion air and said cooling medium constant regardless of varying power out-put demands and to maintain the fluidized bed temperature within a predetermined range.
Claim 2
Dependent Claim
165 words
A combustion chamber for operating gas turbines and the like; comprising: a. a burner housing; b. a fluidized bed of particulate material within said burner housing; c. means for purging the combustion gas from said burner housing; d. a chamber surrounding said burner housing for receiving purged combustion gas from said burner; e. means for injecting fuel into said burner; f. means for introducing combustion air into said burner; g. a cooling chamber for receiving a cooling medium surrounding the purged combustion gas chamber; h. means for introducing a cooling medium into said cooling chamber; i. means for passing said cooling medium in a confined path through said fluidized bed in heat relationship therewith; j. means for passing said cooling medium and said purged combustion gas to a power out-put station, and k. means for maintaining a predetermined proportional relationship between combustion air and said cooling medium constant regardless of varying power out-put demands and to maintain the fluidized bed temperature within a predetermined range.
Claim 3
Dependent Claim
35 words
A combustion chamber according to claim 1, having second control means for simultaneous regulation of the volumes of combustion air and cooling medium on the one hand and the amount of fuel on the other.
Claim 4
Dependent Claim
27 words
A combustion chamber according to claim 1, in which the volume of combustion air and cooling medium are controlled to maintain a combustion temperature ranging between 700*-950*C.
Claim 5
Dependent Claim
29 words
A combustion chamber according to claim 1, in which the volumes of combustion air and cooling medium are controlled to maintain a proportional relationship on the order of 1:2.
Claim 6
Dependent Claim
23 words
A combustion chamber according to claim 1, in which the cooling medium constitutes air emanating from the same source as the combustion air.
Claim 7
Dependent Claim
77 words
A combustion chamber according to claim 5, in which a portion of the air emanating from the same sources is introduced into the cooling chamber as cooling medium and another portion thereof is introduced into the fluidized bed as combustion air; the cooling air upon having passed through the fluidized bed being received in said purged combustion gas chamber and mixed therein with the combustion gas and passed as a combined entity to the power out-put station.
Claim 8
Dependent Claim
47 words
A combustion chamber according to claim 6 which is provided with an outer housing surrounding said cooling chamber forming a passage for the air emanating from the common source which is introduced into the fluidized bed and into the cooling chamber respectively at a predetermined controlled rate.
Claim 9
Dependent Claim
46 words
A combustion chamber according to claim 7, in which a valved by-pass passage is provided in said outer housing for short-circuiting the fluidized bed and passing the air in the outer housing directly to the power out-put station for rapid reduction of the power out-put thereof.
Claim 10
Dependent Claim
37 words
A combustion chamber according to claim 1, in which a separate casing is provided surrounding said burner housing for confining the heated cooling medium and having means for passing it separately to a different power out-put station.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-12-08 | 1979-06-09 | 1979-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-08 | 1983-06-09 | 1983-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-08 | 1987-06-09 | 1987-12-09 | $7700.00 | Window Closed / Lapsed |