US3692017A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Submerged combustion heat-generator, in particular for the production of very hot water
Assignee: Engie SA
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Filing: 1970-11-30
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Granted: 1972-09-19
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Expires: 1990-11-30
Abstract
Abstract A submerged combustion heat-generator enabling the obtention of a high-temperature heat-carrying fluid. The heat generator of the invention uses a burner operating on combustion in a liquid bath, for instance of water and the combustion gases burn in a combustion chamber which is at least partially immerged in the said bath and at least partially heat-insulated therefrom. Said combustion chamber comprises a second heat-exchanger which is mounted upstream of said first exchanger on the heat-carrying fluid path.
Inventors
- 👤 Luc Clement Dominique Glachant
- 👤 Remi Pierre Leon Alain Guillet
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:02
CPC Classifications
F; F22; F22B; F22B1/00; F22B1/22; F22B1/26; F22B1/265; F24; F24H; F24H1/00; F24H1/10; F24H1/107
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
184 words
A plant for heating a heat-carrying fluid circulated in said plant comprising: (1) a heating chamber, (2) a first bath of water wherewith said chamber is at least partially filled, (3) a burner operating at least partially on submersed combustion in said bath of water, (4) means for supplying said burner with a combustible mixture under pressure, (5) a combustion chamber immersed in said first bath of water and at least partially heatinsulated from it wherein said burner is mounted and wherein the combustible mixture burns at least partially prior to submersed combustion, (6) a first heat exchanger immersed in said first bath of water and through which is circulated said heat-carrying fluid for draining out from said bath of water the calories generated and left by the combustion of said combustible mixture in said heating chamber and by the bubbling of the combustion products through said bath of water, and (7) a gas/heat-carrying fluid heat exchanger placed in said combustion chamber on the path of the said heat-carrying fluid just before its issuance from the plant, after its passage through said first heatexchanger.
Claim 2
Dependent Claim
184 words
A plant for heating a heat-carrying fluid circulated in said plant comprising: (1) a heating chamber, (2) a first bath of water wherewith said chamber is at least partially filled, (3) a burner operating at least partially on submersed combustion in said bath of water, (4) means for supplying said burner with a combustible mixture under pressure, (5) a combustion chamber immersed in said first bath of water and at least partially heatinsulated from it wherein said burner is mounted and wherein the combustible mixture burns at least partially prior to submersed combustion, (6) a first heat exchanger immersed in said first bath of water and through which is circulated said heat-carrying fluid for draining out from said bath of water the calories generated and left by the combustion of said combustible mixture in said heating chamber and by the bubbling of the combustion products through said bath of water, and (7) a gas/heat-carrying fluid heat exchanger placed in said combustion chamber on the path of the said heat-carrying fluid just before its issuance from the plant, after its passage through said first heatexchanger.
Claim 3
Dependent Claim
149 words
A plant according to claim 1 further comprising: (8) a condenser, (9) a second bath of water wherewith said condenser is at least partially filled, (10) a second heat exchanger immersed in said second bath of water, (11) means for returning water from said second bath the said first bath, (12) an inlet in said condenser for the combustion products generated in said heating chamber, (13) conduit means connecting the exhaust of combustion products issuing from said heating chamber to said inlet of combustion products supplied to said condenser, (14) an outlet in said condenser connected to the atmosPhere and (15) connecting and pumping means for circulating said heat-carrying fluid successively into said second heat-exchanger and into said first heat-exchanger in which said fluid is progressively heated from its supplying into the plant up to its supplying to said gas/heat-carrying fluid heat exchanger before its issuing from the plant.
Claim 4
Dependent Claim
18 words
A plant according to claim 1, wherein the said gas/heat-carrying fluid exchanger is constituted by a boiler body.
Claim 5
Dependent Claim
42 words
A plant according to claim 1, wherein said combustion chamber immersed in said first bath of water is cylindrical, substantially vertical and its inner wall is constituted by said gas/heat-carrying fluid exchanger which is subjected to the action of the combustion products.
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) | 1975-09-19 | 1976-03-20 | 1976-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-09-19 | 1980-03-20 | 1980-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-09-19 | 1984-03-20 | 1984-09-19 | $7700.00 | Window Closed / Lapsed |