Patent US4966597A successfully refreshed from Google Patents.
US4798339A
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Submerged jet injection nozzle
Assignee: Sugino Machine Ltd
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Filing: 1986-10-22
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Granted: 1989-01-17
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Expires: 2006-10-22
Abstract
Abstract A submerged jet injection nozzle includes a nozzle exit disposed downstream of an orifice section and greater in diameter than the orifice section. The occurrence of cavitation due to a fluid injection is positively promoted so that the crushing effect of the cavitation is utilized fully and the decay in the energy of the injected fluid is reduced thereby increasing the work done by the submerged fluid injection.
Inventors
- 👤 Kenji Sugino
- 👤 Katsuya Yanaida
- 👤 Hiroshi Sugino
- 👤 Masao Nakaya
- 👤 Nobuo Nishida
- 👤 Kensaku Eda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:27
CPC Classifications
B; B05; B05B; B05B17/00; B05B1/00; B05B1/02; B08; B08B; B08B3/00; B08B3/02; B24; B24C; B24C5/00; B24C5/02; B24C5/04
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
129 words
A liquid jet injection nozzle for positive production of cavitation when submerged in a liquid, said nozzle consisting essentially of: (a) an orifice section having a tubular bore of uniform cross-sectional area in communication with a pressurized liquid supply means producing a high velocity jet stream of liquid from said liquid supply means; and (b) a divergent nozzle exit section extending from the downstream end of said orifice section, said exit section having a length in the range of 5 to 12 times the diameter of the bore of the tubular orifice section and an inlet diameter equal to the diameter of said tubular bore and increasing in diameter along its axis at an angle with respect to the axis thereof in the range of 20 to 60 degrees.
Claim 2
Dependent Claim
129 words
A liquid jet injection nozzle for positive production of cavitation when submerged in a liquid, said nozzle consisting essentially of: (a) an orifice section having a tubular bore of uniform cross-sectional area in communication with a pressurized liquid supply means producing a high velocity jet stream of liquid from said liquid supply means; and (b) a divergent nozzle exit section extending from the downstream end of said orifice section, said exit section having a length in the range of 5 to 12 times the diameter of the bore of the tubular orifice section and an inlet diameter equal to the diameter of said tubular bore and increasing in diameter along its axis at an angle with respect to the axis thereof in the range of 20 to 60 degrees.
Claim 3
Dependent Claim
21 words
A nozzle according to claim 1, wherein said orifice section is circular in section at least in the exit portion thereof.
Claim 4
Dependent Claim
28 words
A nozzle as defined in claim 1 wherein the angle of said divergent nozzle in said nozzle exit section is in the range of 20 to 40 degrees.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-01-17 | 1992-07-18 | 1993-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-01-17 | 1996-07-18 | 1997-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-01-17 | 2000-07-18 | 2001-01-17 | $7700.00 | Window Closed / Lapsed |