US3597141A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Burner device for fluidic fuels
Assignee: Siemens AG
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Filing: 1969-08-05
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Granted: 1971-08-03
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Expires: 1989-08-05
Abstract
Abstract A burner device for gaseous, liquid or pulverulent fuel comprises a tubular burner structure of a rotationally symmetrical, for example conical or parabolic shape, which tapers from the burner outlet opening toward the much smaller fuel inlet opening. Nozzles for supplying combustion air communicate with the interior of the tapering burner structure in substantially tangential directions respectively and in a plurality of respective planes which extend transversely to the burner axis and are axially spaced from each other. Preferably a cylindrical combustion chamber structure is coaxially joined with the tubular burner structure at the outlet opening of the latter and is provided with additional combustion-air supply nozzles which are directed tangentially toward the interior of the combustion chamber. Roughness structures are preferably mounted on the interior wall of the tapering burner structure and may be adjustable as to the height up to which they protrude into the interior of the burner.
Inventors
- 👤 Aribert Fracke
- 👤 Eduard Weber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:16
CPC Classifications
F; F23; F23C; F23C3/00; F23C3/006
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
133 words
A burner device for gaseous, liquid or pulverulent fuel comprising a tubular burner structure having a gas outlet opening and a fuel inlet opening at coaxially opposite ends, said fuel inlet opening having a smaller diameter than said outlet opening and defining a path coaxial to said tubular burner structure for supplying a nonturbulent flow of fuel to said tubular burner structure, said tubular structure having a rotationally symmetrical shape tapering from said outlet opening toward said inlet opening, and a plurality of nozzles supplying combustion air communicating with the interior of said tapering burner structure in substantially tangential directions respeCtively and disposed in a plurality of respective planes which extend perpendicularly to the burner axis and are axially spaced from each other, said nozzles being throttleable individually as well as in groups.
Claim 2
Dependent Claim
133 words
A burner device for gaseous, liquid or pulverulent fuel comprising a tubular burner structure having a gas outlet opening and a fuel inlet opening at coaxially opposite ends, said fuel inlet opening having a smaller diameter than said outlet opening and defining a path coaxial to said tubular burner structure for supplying a nonturbulent flow of fuel to said tubular burner structure, said tubular structure having a rotationally symmetrical shape tapering from said outlet opening toward said inlet opening, and a plurality of nozzles supplying combustion air communicating with the interior of said tapering burner structure in substantially tangential directions respeCtively and disposed in a plurality of respective planes which extend perpendicularly to the burner axis and are axially spaced from each other, said nozzles being throttleable individually as well as in groups.
Claim 3
Dependent Claim
17 words
In a burner device according to claim 1, said tubular burner structure having a substantially conical shape.
Claim 4
Dependent Claim
17 words
In a burner device according to claim 1, said tubular burner structure having a substantially parabolical shape.
Claim 5
Dependent Claim
37 words
A burner device according to claim 1, comprising a cylindrical combustion chamber structure coaxially joined with said tubular burner structure at said outlet opening and having an inner diameter substantially equal to that of said outlet opening.
Claim 6
Dependent Claim
25 words
In a burner device according to claim 4, said diameter of said outlet opening being more than five times the diameter of said fuel inlet.
Claim 7
Dependent Claim
22 words
In a burner device according to claim 4, said chamber structure having further substantially tangential nozzles for supply of additional combustion air.
Claim 8
Dependent Claim
25 words
In a burner device according to claim 6, said further nozzles being directed at an inclination toward the fuel inflow direction of said fuel inlet.
Claim 9
Dependent Claim
37 words
In a burner device according to claim 1, said nozzles having their respective nozzle orifices located substantially at the interior surface of said tapering tubular burner so as to leave the interior of said burner substantially unobstructed.
Claim 10
Dependent Claim
125 words
A burner device for gaseous, liquid or pulverulent fuel comprising a tubular burner structure having a gas outlet opening and a fuel inlet opening at coaxially opposite ends, said fuel inlet opening having a smaller diameter than said outlet opening, said tubular structure having a rotationally symmetrical shape tapering from said outlet opening toward said inlet opening and nozzle means for supplying combustion air communicating with the interior of said tapering burner structure in substantially tangential directions respectively and in a plurality of respective planes which extend transversely to the burner axis and are axially spaced from each other, said tubular burner structure comprising roughness structures located on its interior surface between said nozzle orifices and protruding into the interior of said tubular burner structure.
Claim 11
Dependent Claim
125 words
A burner device for gaseous, liquid or pulverulent fuel comprising a tubular burner structure having a gas outlet opening and a fuel inlet opening at coaxially opposite ends, said fuel inlet opening having a smaller diameter than said outlet opening, said tubular structure having a rotationally symmetrical shape tapering from said outlet opening toward said inlet opening and nozzle means for supplying combustion air communicating with the interior of said tapering burner structure in substantially tangential directions respectively and in a plurality of respective planes which extend transversely to the burner axis and are axially spaced from each other, said tubular burner structure comprising roughness structures located on its interior surface between said nozzle orifices and protruding into the interior of said tubular burner structure.
Claim 12
Dependent Claim
135 words
A burner device for gaseous, liquid or pulverulent fuel comprising a tubular burner structure having a gas outlet opening and a fuel inlet opening at coaxially opposite ends, said fuel inlet opening having a smaller diameter than said outlet opening, said tubular structure having a rotationally symmetrical shape tapering from said outlet opening toward said inlet opening and nozzle means for supplying combustion air communicating with the interior of said tapering burner structure in substantially tangential directions respectively and in a plurality of respective planes which extend transversely to the burner axis and are axially spaced from each other, said tubular burner comprising roughness structures located on the interior wall surface of said burner and protruding into the interior of said tubular burner structure, and means for adjusting the protruding height of said roughness structures.
Claim 13
Dependent Claim
135 words
A burner device for gaseous, liquid or pulverulent fuel comprising a tubular burner structure having a gas outlet opening and a fuel inlet opening at coaxially opposite ends, said fuel inlet opening having a smaller diameter than said outlet opening, said tubular structure having a rotationally symmetrical shape tapering from said outlet opening toward said inlet opening and nozzle means for supplying combustion air communicating with the interior of said tapering burner structure in substantially tangential directions respectively and in a plurality of respective planes which extend transversely to the burner axis and are axially spaced from each other, said tubular burner comprising roughness structures located on the interior wall surface of said burner and protruding into the interior of said tubular burner structure, and means for adjusting the protruding height of said roughness structures.
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) | 1974-08-02 | 1975-02-01 | 1975-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-02 | 1979-02-01 | 1979-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-02 | 1983-02-01 | 1983-08-03 | $7700.00 | Window Closed / Lapsed |