High pressure cutting nozzle with on-off capability
AssigneeFlow Industries, Inc.
InventorJohn H. Olsen
Life of this patent
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Abstract
An ultra high pressure water jet cutting nozzle is disclosed which comprises a lightweight poppet valve assembly coupled by a lost motion connection to a valve actuator. The poppet valve assembly seals directly to the jet-forming element of the nozzle insuring continuous high pressure fluid in the system at all times. The maintenance of constant high fluid pressure in the system protects the supply tubing of the system against damage due to pressure waves generated by repeated opening and closing of the valve assembly. The maintenance of continuous high fluid pressure also prevents dislodgement of the jet-forming element of the nozzle.
Claims17
A high velocity liquid jet cutting nozzle comprising;
- a housing having an inlet means for admitting high pressure working liquid thereto,
- outlet means in said housing for said high pressure liquid,
- jet forming means for forming a cutting jet of said liquid,
- means mounting said jet forming means in said outlet means,
- poppet means in said housing movable into sealing engagement with said jet forming means for controlling liquid flow through said jet forming means,
- poppet actuation means for moving said poppet means into and out of sealing engagement with said jet forming means.
A high velocity liquid jet cutting nozzle comprising:
- a housing having an inlet and an outlet for a high pressure working liquid, said outlet including jet forming means for forming a jet of said liquid,
- valve means contained in said housing means for forming a seal with said jet forming means to control flow of said liquid through said jet forming means, and
- actuation means for operating said valve means.
Dependencies are inferred from the claim text.