Patent US3917173A successfully refreshed from Google Patents.
US3917173A
Expired / Lapsed
US
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Atomizing apparatus for finely distributing a liquid in an air stream
Assignee: ABB Stal AB
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Filing: 1974-09-26
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Granted: 1975-11-04
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Expires: 1994-09-26
Abstract
Abstract An apparatus is disclosed for efficiently atomizing and finely distributing a liquid in an air stream, for extracting maximum benefit from the liquid for the intended use, which may be for combustion as in jets and combustion chambers for gas turbines, or for moisturizing equipment, or for use in the chemical industry, for example, where the liquid will be suitable for the purpose intended, as for extraction of heat energy, or for mixing purposes, or the like.
Inventors
- 👤 Ritindar Singh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:27
CPC Classifications
B; B05; B05B; B05B7/00; B05B7/0075; B05B7/02; B05B7/04; F; F04; F04D; F04D29/00; F04D29/70; F04D29/701; F04D29/705; F23; F23D; F23D11/00; F23D11/10; F23D11/101; F23D11/105; F23D11/106; F23D11/107; F23R; F23R3/00; F23R3/28; F23R3/286; F23D2900/00; F23D2900/11101
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
152 words
Atomizing apparatus for finely distributing a liquid into an air stream, comprising: a. at least one primary, cylindrical tubular structure defining an open ended passage and having its inner and outer surfaces exposed to the air stream, said tubular structure having a cylindrical inner surface and an outer surface having an upstream cylindrical part and a downstream conical part forming together with said inner surface a sharp downstream edge, said tubular structure embodying a hollow chamber between said inner and outer surfaces with perforations in the walls of said chamber, said perforations leading to the inner surface of the tubular structure, and serving to conduct liquid from said chamber onto said inner surface, and distributing said liquid onto said inner surface; b. and means for propelling an air stream through said passage and along said tubular structure, to pick up and entrain minute liquid droplets at the downstream edge of said surface.
Claim 2
Dependent Claim
152 words
Atomizing apparatus for finely distributing a liquid into an air stream, comprising: a. at least one primary, cylindrical tubular structure defining an open ended passage and having its inner and outer surfaces exposed to the air stream, said tubular structure having a cylindrical inner surface and an outer surface having an upstream cylindrical part and a downstream conical part forming together with said inner surface a sharp downstream edge, said tubular structure embodying a hollow chamber between said inner and outer surfaces with perforations in the walls of said chamber, said perforations leading to the inner surface of the tubular structure, and serving to conduct liquid from said chamber onto said inner surface, and distributing said liquid onto said inner surface; b. and means for propelling an air stream through said passage and along said tubular structure, to pick up and entrain minute liquid droplets at the downstream edge of said surface.
Claim 3
Dependent Claim
76 words
Atomizing apparatus as claimed in claim 1, having at least one secondary tubular structure arranged coaxially with said primary tubular structure, said secondary structure also having a sharp downstream edge formed by a cylindrical surface facing said primary tubular structure and a conical surface part facing away from said primary tubular structure, further perforations in the wall of said primary structure arranged for directing jets of liquid onto the said cylindrical surface of the secondary structure.
Claim 4
Dependent Claim
21 words
Atomizing apparatus, as in claim 2, including, further, means for introducing fluid into said hollow chamber to travel through said perforations.
Claim 5
Dependent Claim
16 words
Atomizing apparatus, as in claim 3, in which said fluid introducing means include a pressure pump.
Claim 6
Dependent Claim
25 words
Atomizing apparatus, as in claim 3, including, further, means for creating turbulence in said air stream to increase the entraining activity of said air stream.
Claim 7
Dependent Claim
25 words
Atomizing apparatus, as in claim 5, in which said turbulence means include guide vanes to modulate the directional flow of portions of said air stream.
Claim 8
Dependent Claim
24 words
Atomizing apparatus, as in claim 3, in which said perforations are inclined to be closely tangential to said inner surface of said tubular structure.
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) | 1978-11-03 | 1979-05-05 | 1979-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-11-03 | 1983-05-05 | 1983-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-11-03 | 1987-05-05 | 1987-11-04 | $7700.00 | Window Closed / Lapsed |