Nozzle intended for the concentrated distribution of a fluid loaded with solid particles, particularly with a view to the fine, accurate and controlled scouring of surfaces
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United States of America Patent
Stats
-
Apr 27, 2004
Grant Date -
Jul 11, 2002
app pub date -
Jan 3, 2002
filing date -
Jan 4, 2001
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The invention relates to a nozzle for the projection on to an object of a fluid such as a gaseous flow containing solid particles, comprising a body 1 through which there passes a longitudinal tubular passage, one end of which constitutes an inlet 2 that has to be connected to the intake of a fluid supply conduit and the other end of which constitutes an outlet 3 for the fluid that has passed through the nozzle. The nozzle is characterized in that the section of the tubular passage is variable between the inlet 2 and the outlet 3, and the passage has three successive portions, which are: an inlet chamber 11 with a constant section, an intermediate conduit 12 with a variable section, the walls of which are convergent from the chamber 11 to an oblong neck, which has a major axis and a minor axis and the area of which is equal to that of the circular section of the chamber 11, and an outlet tube 14 with a variable oblong section, the walls of which are divergent from the neck to an outlet orifice of oblong section having a major axis and a minor axis.
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Cited Art Landscape
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