High velocity liquid jet cutting nozzle

Details High velocity liquid jet cutting nozzle High velocity liquid jet cutting nozzle

1976-12-17

1978-12-26

Blunk, Evon C.

Fluid sprinkling, spraying, and diffusing

Rigid fluid confining distributor

Fluidic oscillator

175422, 239596, 239600, B05B 100

Patent

active

041312368

ABSTRACT:
A high velocity liquid jet cutting nozzle in which a nozzle member is supported in communicative connection with the outlet end of a high pressure liquid pipe by means of a mounting which is seated in a cup-shaped holder which is connected to the outlet end of the pipe.
To provide a coherent, stable jet at liquid pressures of the order of 60,000 psi, the nozzle member is formed from a piece of artificial sapphire, such as a watch or instrument jewel, having a circular aperture diameter of between 0.05mm. and 0.40mm. This aperture is formed with a convergent inlet portion which is a surface of revolution, about the axis of the aperture, of a smooth curved arc, a uniform diameter portion extending tangentially from the inlet portion, and a divergently bevelled outlet portion.

REFERENCES:
patent: 2107601 (1938-02-01), Davis
patent: 3705693 (1972-12-01), Franz
patent: 3750961 (1973-08-01), Franz

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