US5125582A
Expired / Lapsed
US
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Surge enhanced cavitating jet
Assignee: Halliburton Co
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Filing: 1990-08-31
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Granted: 1992-06-30
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Expires: 2010-08-31
Abstract
Abstract A surge enhanced cavitating jet for a fluid jetting system. The cavitating jet includes a nozzle portion having a conical throat followed by a fluid separating section. Immediately downstream from the separating section is a substantially cylindrical surge section. The length and inside diameter of the surge section are sized such that a minimum annular area is defined between the inside diameter of the surge section and the outside of the fluid stream as the fluid discharges from the cavitating jet such that cavitation is contained in the surge volume. The fluid stream does not impinge the inside diameter of the cavitating jet. A jetting system including a pump and valve is also disclosed.
Inventors
- 👤 Jim B. Surjaatmadja
- 👤 John J. Howlett, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:58
CPC Classifications
B; B08; B08B; B08B3/00; B08B3/02; B08B3/026; B08B3/028; B05; B05B; B05B1/00; B05B1/34
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
82 words
A cavitating jetting apparatus comprising: nozzle means for converging flow in a fluid stream, said nozzle means comprising: a conical throat section; and a fluid separating section downstream from said throat section; and cavitation amplification means for amplifying cavitation of said fluid after it passes through said nozzle means, said cavitation amplification means being characterized by a substantially cylindrical surge section downstream from said nozzle means and having a length greater than approximately three times the minimum diameter of said nozzle means.
Claim 2
Dependent Claim
82 words
A cavitating jetting apparatus comprising: nozzle means for converging flow in a fluid stream, said nozzle means comprising: a conical throat section; and a fluid separating section downstream from said throat section; and cavitation amplification means for amplifying cavitation of said fluid after it passes through said nozzle means, said cavitation amplification means being characterized by a substantially cylindrical surge section downstream from said nozzle means and having a length greater than approximately three times the minimum diameter of said nozzle means.
Claim 3
Dependent Claim
19 words
The apparatus of claim 1 wherein said separating section is tapered in an opposite direction from said throat section.
Claim 4
Dependent Claim
40 words
The apparatus of claim 1 wherein a length and inside diameter of said surge section are sized such that a diameter of a fluid stream discharged from said nozzle means is less than said inside diameter of said surge section.
Claim 5
Dependent Claim
19 words
The apparatus of claim 1 wherein said nozzle means and cavitation amplification means are integrally formed in a body.
Claim 6
Dependent Claim
72 words
A cavitating jet comprising: a fluid separating section; a substantially conical throat upstream from said fluid separating section and tapering inwardly toward an outlet end thereof; and a substantially cylindrical surge section downstream of said fluid separating section, said surge section having an inside diameter larger than an inside diameter of said fluid separating section and having a length greater than approximately three times a minimum diameter of said fluid separating section.
Claim 7
Dependent Claim
72 words
A cavitating jet comprising: a fluid separating section; a substantially conical throat upstream from said fluid separating section and tapering inwardly toward an outlet end thereof; and a substantially cylindrical surge section downstream of said fluid separating section, said surge section having an inside diameter larger than an inside diameter of said fluid separating section and having a length greater than approximately three times a minimum diameter of said fluid separating section.
Claim 8
Dependent Claim
21 words
The jet of claim 5 wherein said fluid separating section is substantially conical and tapers outwardly toward an outlet end thereof.
Claim 9
Dependent Claim
33 words
The jet of claim 5 wherein said surge section is sized such that an annular volume is defined between said inside diameter of said surge section and a fluid flow stream passing therethrough.
Claim 10
Dependent Claim
26 words
The jet of claim 5 wherein said inside diameter of said surge section is sized that said fluid stream does not directly impinge said inside diameter.
Claim 11
Dependent Claim
136 words
A fluid jetting system comprising: a pump having an inlet adapted for connection to a fluid reservoir and an outlet; flow control means in communication with said outlet of said pump for controlling fluid discharged therefrom; and a cavitating jet in communication with said control means and comprising: nozzle means for converging a fluid stream flowing therethrough, said nozzle means comprising: a substantially conical throat section tapering inwardly toward an outlet end thereof; and a fluid separating section adjacent to said outlet end of said throat; and amplifying means downstream from said nozzle means for amplifying cavitation in said fluid stream, said amplifying means being characterized by a substantially cylindrical surge section adjacent to an outlet of said nozzle means and having a length greater than about three times a minimum diameter of said nozzle means.
Claim 12
Dependent Claim
136 words
A fluid jetting system comprising: a pump having an inlet adapted for connection to a fluid reservoir and an outlet; flow control means in communication with said outlet of said pump for controlling fluid discharged therefrom; and a cavitating jet in communication with said control means and comprising: nozzle means for converging a fluid stream flowing therethrough, said nozzle means comprising: a substantially conical throat section tapering inwardly toward an outlet end thereof; and a fluid separating section adjacent to said outlet end of said throat; and amplifying means downstream from said nozzle means for amplifying cavitation in said fluid stream, said amplifying means being characterized by a substantially cylindrical surge section adjacent to an outlet of said nozzle means and having a length greater than about three times a minimum diameter of said nozzle means.
Claim 13
Dependent Claim
24 words
The system of claim 9 wherein said surge section is sized such that an inside diameter thereof is not impinged by said fluid stream.
Claim 14
Dependent Claim
19 words
The system of claim 9 wherein said separating section is substantially conical and tapers outwardly toward an outlet thereof.
Claim 15
Dependent Claim
64 words
A cavitating jetting apparatus comprising: nozzle means for converging flow of a fluid stream; and cavitation amplification means for amplifying cavitation of said fluid after it passes through said nozzle means, said cavitation amplification means being characterized by a substantially cylindrical surge section downstream from said nozzle means and having a length at least approximately eight times a minimum diameter of said nozzle means.
Claim 16
Dependent Claim
64 words
A cavitating jetting apparatus comprising: nozzle means for converging flow of a fluid stream; and cavitation amplification means for amplifying cavitation of said fluid after it passes through said nozzle means, said cavitation amplification means being characterized by a substantially cylindrical surge section downstream from said nozzle means and having a length at least approximately eight times a minimum diameter of said nozzle means.
Claim 17
Dependent Claim
29 words
The apparatus of claim 12 wherein said length of said surge section is in the range of about eight to ten times said minimum diameter of said nozzle means.
Claim 18
Dependent Claim
54 words
A cavitating jet comprising: a fluid separating section; and a substantially cylindrical surge section downstream of said fluid separating section, said surge section having an inside diameter larger than an inside diameter of said fluid separating section and having a length at least approximately eight times the minimum diameter of said fluid separating section.
Claim 19
Dependent Claim
54 words
A cavitating jet comprising: a fluid separating section; and a substantially cylindrical surge section downstream of said fluid separating section, said surge section having an inside diameter larger than an inside diameter of said fluid separating section and having a length at least approximately eight times the minimum diameter of said fluid separating section.
Claim 20
Dependent Claim
30 words
The jet of claim 14 wherein said length of said surge section is in the range of about eight to ten times a minimum diameter of said fluid separating section.
Claim 21
Dependent Claim
107 words
A fluid jetting system comprising: a pump having an inlet adapted for connection to a fluid reservoir and an outlet; flow control means in communication with said outlet of said pump for controlling fluid discharged therefrom; and a cavitating jet in communication with said control means and comprising: nozzle means for converging a fluid stream flowing therethrough; and amplifying means downstream from said nozzle means for amplifying cavitation in said fluid stream, said amplifying means being characterized by a substantially cylindrical surge section adjacent to an outlet of said nozzle means and having a length at least about eight times a minimum diameter of said nozzle means.
Claim 22
Dependent Claim
107 words
A fluid jetting system comprising: a pump having an inlet adapted for connection to a fluid reservoir and an outlet; flow control means in communication with said outlet of said pump for controlling fluid discharged therefrom; and a cavitating jet in communication with said control means and comprising: nozzle means for converging a fluid stream flowing therethrough; and amplifying means downstream from said nozzle means for amplifying cavitation in said fluid stream, said amplifying means being characterized by a substantially cylindrical surge section adjacent to an outlet of said nozzle means and having a length at least about eight times a minimum diameter of said nozzle means.
Claim 23
Dependent Claim
31 words
The system of claim 16 wherein said length of said surge section is in the range of about eight to ten times greater than a minimum diameter of said nozzle means.
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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) | 1995-06-30 | 1995-12-30 | 1996-06-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-06-30 | 1999-12-30 | 2000-06-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-06-30 | 2003-12-30 | 2004-06-30 | $7700.00 | Window Closed / Lapsed |