US4386738A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sonic atomizing spray nozzle
Assignee: Alstom Power Inc
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Filing: 1981-10-02
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Granted: 1983-06-07
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Expires: 2001-10-02
Abstract
Abstract A sonic atomizing spray nozzle (40) wherein a slurry (30) of finely-divided sulfur oxide absorbent particles in a carrier liquid is sprayed into a flue gas stream (12) entering a drying chamber (20) through a continuous circumferential slit (70) as a radially outwardly directed thin continuous sheet (28). The thickness of the sheet can be varied to optimize atomization over a range of slurry flow rates by varying the width of slit (70).
Inventors
- 👤 II Wesley P. Bauver
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:11
CPC Classifications
B; B01; B01D; B01D53/00; B01D53/34; B01D53/46; B01D53/48; B01D53/50; B01D53/501; B05; B05B; B05B1/00; B05B1/26; B05B1/262; B05B1/265; B05B17/00; B05B17/04; B05B17/06; B05B17/0692; F; F23; F23J; F23J15/00; F23J15/003; Y; Y10; Y10S; Y10S261/00; Y10S261/48
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
223 words
A spray nozzle comprising: a. a body; b. an open-ended outer annular shell extending from said body; c. an open-ended inner annular shell extending from said body and coaxially disposed within said outer annular shell so as to define a first annular passage between said inner and outer shells, said inner annular shell extending from said body for a distance at least equal to the distance said outer annular shell extends therefrom; d. a resonator cup spaced from the open end of said outer annular shell and disposed substantially coaxially therewith defining a resonator cavity which opens facing the open end of said outer annular shell; e. a stem extending coaxially through said inner annular shell between said resonator cup and said body so as to define a second annular passage between said inner shell and said stem, said stem having a circumferential lip at a point adjacent but spaced from the open end of said inner annular shell, the lip extending radially outward from said stem to form a circumferential slit between the lip and the end of said inner annular shell, the slit communicating between said second annular passage and the space between said resonator cup and said outer annular shell; f. atomizing gas-feeding means communicating with said first annular passage; and g. liquid-feeding means communicating with said second annular passage.
Claim 2
Dependent Claim
223 words
A spray nozzle comprising: a. a body; b. an open-ended outer annular shell extending from said body; c. an open-ended inner annular shell extending from said body and coaxially disposed within said outer annular shell so as to define a first annular passage between said inner and outer shells, said inner annular shell extending from said body for a distance at least equal to the distance said outer annular shell extends therefrom; d. a resonator cup spaced from the open end of said outer annular shell and disposed substantially coaxially therewith defining a resonator cavity which opens facing the open end of said outer annular shell; e. a stem extending coaxially through said inner annular shell between said resonator cup and said body so as to define a second annular passage between said inner shell and said stem, said stem having a circumferential lip at a point adjacent but spaced from the open end of said inner annular shell, the lip extending radially outward from said stem to form a circumferential slit between the lip and the end of said inner annular shell, the slit communicating between said second annular passage and the space between said resonator cup and said outer annular shell; f. atomizing gas-feeding means communicating with said first annular passage; and g. liquid-feeding means communicating with said second annular passage.
Claim 3
Dependent Claim
53 words
A spray nozzle as recited in claim 1 wherein said stem is connected to said body by screw threads so as to permit the width of the slit between the lip of said stem and the end of said inner annular shell to be altered by selectively screwing said stem into said body.
Claim 4
Dependent Claim
26 words
A spray nozzle as recited in claim 1 wherein said liquid-feeding means includes a passage extending through said body to open into said second annular passage.
Claim 5
Dependent Claim
32 words
A spray nozzle as recited in claim 1 wherein said atomizing gas-feeding means includes a passage extending through the wall of said outer annular shell to open into said first annular passage.
References Cited (Backward Citations)
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Cited
US3297255A
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US3638859A
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Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-06-06 | 1986-12-06 | 1987-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-06-06 | 1990-12-06 | 1991-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-06-06 | 1994-12-06 | 1995-06-07 | $7700.00 | Window Closed / Lapsed |