Patent US3576384A successfully refreshed from Google Patents.
US3576384A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multinozzle system for vortex burners
Assignee: PETROCANADA Inc A CORP OF CANADA
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Filing: 1968-11-29
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Granted: 1971-04-27
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Expires: 1988-11-29
Abstract
Abstract A nozzle to be positioned around a fuel atomizer between a rotary air chamber and a coaxial combustion chamber. The nozzle consists of a 45* conical frustum surrounding the atomizer but spaced therefrom, and at least one frustoconical baffle with the same cone angle, located between the outer frustum and the atomizer. Thus are defined two concentric, converging annular passageways through which rotating air passes from the air chamber into the combustion chamber around the atomizer.
Inventors
- 👤 Charles F Peczeli
- 👤 Edward T Tyrcz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:36
CPC Classifications
F; F23; F23C; F23C9/00; F23C9/006; F23C7/00; F23C7/002
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
185 words
An oil burner assembly, comprising: an air chamber of circular cross section having an air inlet and means for causing admitted air to rotate within the air chamber, a combustion chamber of circular cross section coaxial with said air chamber, a nozzle coaxially communicating the air chamber with the combustion chamber, whereby air can pass from the former to the latter, a fuel atomizer extending coaxially from the air chamber into the nozzle and terminated substantially at the downstream end of the nozzle, said nozzle having adjacent the combustion chamber a substantially frustoconical portion whose apex is downstream of its base, said nozzle further having a substantially frustoconical baffle supported between the fuel atomizer and said substantially frustoconical portion, thereby to define two substantially concentric annular passageways each converging toward the combustion chamber and each communicating the air chamber with the combustion chamber, one of said passageways being outwardly adjacent said baffle, the other of said passageways being inwardly adjacent said baffle, said substantially frustoconical baffle having a cylindrical projection extending upstream from its base, thereby to increase the length of both said air passageways.
Claim 2
Dependent Claim
185 words
An oil burner assembly, comprising: an air chamber of circular cross section having an air inlet and means for causing admitted air to rotate within the air chamber, a combustion chamber of circular cross section coaxial with said air chamber, a nozzle coaxially communicating the air chamber with the combustion chamber, whereby air can pass from the former to the latter, a fuel atomizer extending coaxially from the air chamber into the nozzle and terminated substantially at the downstream end of the nozzle, said nozzle having adjacent the combustion chamber a substantially frustoconical portion whose apex is downstream of its base, said nozzle further having a substantially frustoconical baffle supported between the fuel atomizer and said substantially frustoconical portion, thereby to define two substantially concentric annular passageways each converging toward the combustion chamber and each communicating the air chamber with the combustion chamber, one of said passageways being outwardly adjacent said baffle, the other of said passageways being inwardly adjacent said baffle, said substantially frustoconical baffle having a cylindrical projection extending upstream from its base, thereby to increase the length of both said air passageways.
Claim 3
Dependent Claim
24 words
An oil burner as claimed in claim 1, which has a plurality of concentric baffles, of which one is the said substantially frustoconical baffle.
Claim 4
Dependent Claim
21 words
The invention claimed in claim 1, in which the cone angle of said portion and of said baffle is substantially 45*.
Claim 5
Dependent Claim
15 words
An oil burner as claimed in claim 1, in which said combustion chamber is cylindrical.
Claim 6
Dependent Claim
34 words
An oil burner assembly as claimed in claim 1, in which said means for causing admitted air to rotate within the air chamber comprises directing said air inlet substantially tangentially of the air chamber.
Claim 7
Dependent Claim
31 words
An oil burner as claimed in claim 1, in which the combustion chamber is cylindrical, and in which the cone angle of said portion and of said baffle is substantially 45*.
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) | 1974-04-26 | 1974-10-26 | 1975-04-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-04-26 | 1978-10-26 | 1979-04-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-04-26 | 1982-10-26 | 1983-04-27 | $7700.00 | Window Closed / Lapsed |