US3694136A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oil burner
Assignee: Texaco Inc
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Filing: 1970-10-05
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Granted: 1972-09-26
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Expires: 1990-10-05
Abstract
Abstract A gun type oil burner having a metering plate with adjustable orifices arranged between the burner tip and the burner fan in which the adjustable orifices are peripherally disposed along the inner surface of the blast tube and are axially lined with radial and spirally arranged channels on the inside of the frusto conical tip of the burner.
Inventors
- 👤 Norman E Flournoy
- 👤 Julian H Dancy
- 👤 Raymond Trippet
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 07:45
CPC Classifications
F; F23; F23D; F23D11/00; F23D11/36; F23D11/40; F23D11/408
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
263 words
In a gun type oil burner having a gun barrel or blast tube supplied with a blast of air under substantial pressure, a fuel nozzle coaxially arranged in the vicinity of the downstream extremity of said gun barrel and supplied with liquid fuel to form a predetermined pattern of highly atomized fuel particles and means for igniting said fuel, the improvement which comprises a circular air plate assembly transversely occupying the interior of said blast tube upstream of said nozzle, and provided with a plurality of annularly spaced orifices arranged adjacent to the periphery thereof, said peripheral orifices being adjustable for metering and controlling air flow therethrough, said air pressure in Said blast tube being sufficient to provide a series of annularly spaced, independent, axially flowing jet columns of pressured air through said orifices and along the inner wall of said blast tube, the end of said gun barrel comprising a frusto-conical member inclined in a downstream direction and having a coaxial, restricted central aperture on the inner surface of said frusto-conical member, and having separate, annularly spaced channels extending from the inner wall of said gun barrel to said central aperture and in a frusto-conical direction and at an acute angle to the radius thereof in corresponding directions to cause said air to flow in a spiral direction through the extremity of said burner tip, said radial channels in the end cone and said air plate assembly being so arranged that the said independent columns of air formed by said air plate assembly, impinge the central portion of each of said channels.
Claim 2
Dependent Claim
263 words
In a gun type oil burner having a gun barrel or blast tube supplied with a blast of air under substantial pressure, a fuel nozzle coaxially arranged in the vicinity of the downstream extremity of said gun barrel and supplied with liquid fuel to form a predetermined pattern of highly atomized fuel particles and means for igniting said fuel, the improvement which comprises a circular air plate assembly transversely occupying the interior of said blast tube upstream of said nozzle, and provided with a plurality of annularly spaced orifices arranged adjacent to the periphery thereof, said peripheral orifices being adjustable for metering and controlling air flow therethrough, said air pressure in Said blast tube being sufficient to provide a series of annularly spaced, independent, axially flowing jet columns of pressured air through said orifices and along the inner wall of said blast tube, the end of said gun barrel comprising a frusto-conical member inclined in a downstream direction and having a coaxial, restricted central aperture on the inner surface of said frusto-conical member, and having separate, annularly spaced channels extending from the inner wall of said gun barrel to said central aperture and in a frusto-conical direction and at an acute angle to the radius thereof in corresponding directions to cause said air to flow in a spiral direction through the extremity of said burner tip, said radial channels in the end cone and said air plate assembly being so arranged that the said independent columns of air formed by said air plate assembly, impinge the central portion of each of said channels.
Claim 3
Dependent Claim
60 words
A gun type burner as called for in claim 1 wherein said circular air plate assembly comprises a plurality of coaxially arranged plates having annular, peripherally spaced orifices adapted to register in one angular position thereof, and means for rotationally adjusting said plates relative to one another, such as to enable predetermined restriction of the effective opening of said orifices.
Claim 4
Dependent Claim
54 words
A gun type oil burner as defined in claim 1 wherein the annularly spaced orifices adjacent to the periphery of said circular air plate assembly comprise radially inwardly extending recesses from the peripheral margin thereof, such that the inner wall of the blast tube forms a portion of the margin of each said orifice.
Claim 5
Dependent Claim
47 words
A gun type oil burner as defined in claim 1 wherein said circular air plate assembly is provided with adjustable orifice means in the central portion thereof, adapted to provide a limited flow of air to the central part of the blast tube about the fuel nozzle.
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) | 1975-09-26 | 1976-03-27 | 1976-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-09-26 | 1980-03-27 | 1980-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-09-26 | 1984-03-27 | 1984-09-26 | $7700.00 | Window Closed / Lapsed |