Claims
- 1. An apparatus for generating a high pressure fluid jet for treatment of a selected surface, comprising:a nozzle configured to be coupled to a source of a first fluid, the nozzle having a nozzle orifice extending therethrough in fluid communication with the source of the first fluid; a delivery conduit having a first conduit opening in fluid communication with the nozzle orifice, the delivery conduit further having a second conduit opening spaced apart from the first conduit opening for directing the fluid jet, the delivery conduit having a conduit channel extending between the first and second conduit openings, a length of the conduit channel between the first and second conduit openings being at least approximately ten times a mean diameter of the second conduit opening, at least one of the nozzle and the delivery conduit having at least one aperture upstream of the second conduit opening, the aperture being configured to be coupled to a source of a second fluid; and a supply conduit coupled to the source of the first fluid, the supply conduit having an access opening to removably receive the nozzle and at least a portion of the delivery conduit.
- 2. An apparatus for generating a high pressure fluid jet for treatment of a selected surface, comprising:a source of a first fluid having a pressure of at least approximately 10,000 psi; a source of a second fluid; a supply conduit coupled to the source of the first fluid; a nozzle support body coupled to the supply conduit and having a nozzle passage in fluid communication with the supply conduit; a nozzle positioned in the nozzle passage, the nozzle having a nozzle orifice in fluid communication with the source of the first fluid; a delivery conduit proximate to the nozzle support body and having a first conduit opening in fluid communication with the nozzle orifice, the delivery conduit further having a second conduit opening spaced apart from the first conduit opening for directing the fluid jet, the delivery conduit having a conduit channel extending between the first and second conduit openings, a length of the conduit channel between the first and second conduit openings being at least approximately ten times a mean diameter of the second conduit opening, at least one of the nozzle and the delivery conduit having at least one aperture coupled to the source of the second fluid, the aperture being between the nozzle orifice and the second opening of the conduit; and wherein the supply conduit has an access aperture, the delivery conduit being releasably received in the access aperture of the supply conduit.
- 3. The apparatus of claim 2 wherein the delivery conduit is one of a plurality of interchangeable delivery conduits configured to be removably coupled to the supply conduit, each delivery conduit having a first conduit opening, a second conduit opening downstream of the first conduit opening and a conduit channel extending between the first and second conduit openings.
CROSS-REFERENCE TO RELATED APPLICATION
This application is a divisional of U.S. patent application Ser. No. 09/275,520, filed Mar. 24, 1999, now U.S. Pat. No. 6,280,302, which application is incorporated herein by reference in its entirety.
US Referenced Citations (10)
Foreign Referenced Citations (2)
Number |
Date |
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Aug 1990 |
EP |
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Oct 1990 |
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Non-Patent Literature Citations (2)
Entry |
Nishida, Nobuo et al., “The Development And Application Of Cleaning System By Submerged Jet,” pp. 365-372. |
Sato, Kazunori et al., “A Stuby On Peening By Submerged Ultra-High-Speed Water-Jets,” pp. 413-424. |