Cutting head for removing material with a high velocity jet of working liquid
AssigneeHydro-Ergon Corporation
InventorJohn A. Hilaris
Life of this patent
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Abstract
A liquid cutting head for removing material with a high velocity jet of working liquid supplied by an ultra-high pressure pump includes a nozzle having an outlet for forming and directing a thin high velocity stream of liquid to impact against a workpiece to remove material therefrom. A suction hood surrounds the nozzle having an edge adjacent the workpiece and a liquid curtain extends between the edge of the hood and the workpiece for entrapping and wetting workpiece material removed by the liquid stream for pick up by the suction hood.
Claims24
A liquid cutting head for removal of workpiece material with a high velocity jet of working liquid, comprising:
- a nozzle having an inlet for receiving working liquid at high pressure from the end of a supply conduit and an outlet forming and directing said working liquid into a thin, high velocity stream for impact against said workpiece material;
- suction hood means extending around said nozzle for picking up material that is removed from said workpiece along with spent working liquid from said nozzle, said suction hood means including a hood having a frustoconical segment extending outwardly around said conduit, said hood including an inlet opening around said nozzle for entry of said material and working liquid picked up from said workpiece when impacted by said high velocity liquid jet;
- and
- liquid curtain means around said nozzle for entrapping and wetting said workpiece material for pick up by said suction hood means including means forming a flow of liquid discharged from said hood in a flowing liquid curtain around an edge of said inlet opening.
Dependencies are inferred from the claim text.