Liquid jet cutting apparatus and method

Details Liquid jet cutting apparatus and method Liquid jet cutting apparatus and method

1975-09-22

1976-12-14

Ward, Jr., Robert S.

Fluid sprinkling, spraying, and diffusing

Processes

239596, 239601, 299 17, B05B 110, E21C 2560, E21C 3706

Patent

active

039971112

ABSTRACT:
A high velocity, constant flow, liquid jet cutting apparatus comprising a source of high pressure fluid, a jet nozzle, and a high pressure conduit to carry the fluid from the source to the jet nozzle. Immediately upstream of the jet nozzle is a liquid collimating device comprising a housing interconnected between the conduit and the nozzle and defining a flow collimating chamber directly upstream of the nozzle, through which the high pressure liquid is delivered to the nozzle. The cross sectional area of the flow collimating chamber is at least greater than 100 times the cross sectional area of the nozzle opening, and desirably in the order of four hundred times as great or more. The resulting liquid jet has relatively little dispersion of the liquid and is capable of effectively cutting a relatively narrow kerf with a high quality finish and little, if any, wetting.

REFERENCES:
patent: 3343794 (1967-09-01), Voitsekhovsky
patent: 3419220 (1968-12-01), Goodwin et al.
patent: 3521820 (1970-07-01), Cooley
patent: 3750961 (1973-08-01), Franz
patent: 3756106 (1973-09-01), Chadwick et al.
patent: 3823408 (1974-07-01), Gordon

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