US3867092A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ignitor
Assignee: Babcock and Wilcox Co
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Filing: 1974-02-27
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Granted: 1975-02-18
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Expires: 1994-02-27
Abstract
Abstract A liquid fuel fired ignitor including an atomizing device comprising a tubular barrel and an inner tube projecting into the barrel and discharging into the annular passage formed therebetween and wherein liquid fuel is supplied to the barrel and atomizing fluid is supplied to the tube, with the fuel being atomized by the fluid discharging from the tube and thereafter further atomized by a pair of spaced orifice plates disposed within the barrel downstream fuel flow-wise of the tube.
Inventors
- 👤 Warnie L Sage
- 👤 Edwin D Scott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:30
CPC Classifications
F; F23; F23Q; F23Q3/00; F23Q3/008; F23D; F23D11/00; F23D11/10; F23D11/101; F23D11/102
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
180 words
A liquid fuel fired ignition system comprising at least one ignitor, a device for atomizing the fuel preparatory to firing from the ignitor, said device including a nozzle having an inlet and an outlet end, a coupling connected to the inlet end, an inner tube disposed in said coupling and projecting into the nozzle through the inlet end thereof, said tube cooperating with the nozzle to define therebetween an annular passage of uniform dimension throughout, said tube having an outlet formed of at least one port opening into the passage and an inlet formed with a threaded portion, a sleeve mounted in the coupling, said sleeve having a threaded portion engaging the threaded portion of the tube while permitting rotatable and axial adjustment of said tube, means for supplying a liquid fuel to the passage and an atomizing fluid to the tube, the fuel being atomized by the fluid discharging from said port, and a pair of spaced perforated disks disposed within the nozzle downstream fuel flow-wise of said tube, the fuel being further atomized while passing through said disks.
Claim 2
Dependent Claim
180 words
A liquid fuel fired ignition system comprising at least one ignitor, a device for atomizing the fuel preparatory to firing from the ignitor, said device including a nozzle having an inlet and an outlet end, a coupling connected to the inlet end, an inner tube disposed in said coupling and projecting into the nozzle through the inlet end thereof, said tube cooperating with the nozzle to define therebetween an annular passage of uniform dimension throughout, said tube having an outlet formed of at least one port opening into the passage and an inlet formed with a threaded portion, a sleeve mounted in the coupling, said sleeve having a threaded portion engaging the threaded portion of the tube while permitting rotatable and axial adjustment of said tube, means for supplying a liquid fuel to the passage and an atomizing fluid to the tube, the fuel being atomized by the fluid discharging from said port, and a pair of spaced perforated disks disposed within the nozzle downstream fuel flow-wise of said tube, the fuel being further atomized while passing through said disks.
Claim 3
Dependent Claim
17 words
The system according to claim 1 wherein the atomizing device is an integral part of the ignitor.
Claim 4
Dependent Claim
26 words
The system according to claim 1 wherein the atomizing device is separate from the ignitor, and including conduit means flow connecting the device to said ignitor.
Claim 5
Dependent Claim
30 words
The system according to claim 1 comprising a plurality of ignitors, said atomizing device being separate from the ignitors, and including conduit means flow connecting the device to said ignitors.
Claim 6
Dependent Claim
33 words
The system according to claim 1 including a lock nut engaging the threaded portion of said tube to fixedly secure the tube to said sleeve thereby maintaining the tube in the selected position.
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) | 1978-02-17 | 1978-08-19 | 1979-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-02-17 | 1982-08-19 | 1983-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-02-17 | 1986-08-19 | 1987-02-18 | $7700.00 | Window Closed / Lapsed |