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US 4,055,306 AGranted
Liquid spray nozzle having a randomly directionally unstable discharge characteristic
AssigneeRain Jet Corporation
InventorJohn O. Hruby, Jr.
Life of this patent
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AssigneeRain Jet Corporation
InventorJohn O. Hruby, Jr.
Estimating the term…
A liquid discharge nozzle for producing a randomly directionally unstable liquid discharge characteristic includes a body having a chamber therein. An inlet is provided to the chamber. An outlet duct is defined from an end of the chamber to the exterior of the body. The outlet duct has a straight constant diameter first portion communicating from the chamber to a flared second portion of the outlet duct. The duct first portion has a ratio of length to diameter in the range from about 4 to about 18. The diameter of the duct second portion increases proceeding away from the chamber from an initial diameter essentially equal to that of the duct first portion. While the ultimate flare angle of the duct second portion relative to the axis of the duct first portion may exceed 6.degree., if the ultimate flare angle is greater than 6.degree. then the duct first and second portions are coupled directly by a transition flare in which the ultimate flare angle is developed transitionally in at least one transition section having a flare angle in the range of about from 2.degree. to no more than 6.degree.. The chamber is defined in cooperation with the positions of the inlet and outlet duct relative to each other for substantially linear flow of liquid through the duct first portion during operation of the nozzle.
A nozzle for producing a randomly directionally unstable liquid discharge comprising a body defining therein a chamber having a liquid inlet thereto and a liquid outlet duct from the chamber to the exterior of the body, the liquid flow area of the inlet to the chamber being at least as great as the minimum liquid flow area of the outlet duct, the chamber being defined cooperatively with the inlet and the outlet duct for substantially linear flow of liquid through the outlet duct during operation of the nozzle, the outlet duct having a straight throat portion of constant diameter communicating from the chamber to a flared second portion of the duct, the duct throat portion having a ratio of length to diameter in the range of from about 4 to about 18, the diameter of the duct second portion increasing proceeding along the duct from the chamber from a diameter equal to that of the duct throat portion, the angle of flare of the duct second portion relative to the axis of the throat at the intersection of the duct throat and second portions being at least 2.degree. and no greater than 6.degree..
A nozzle for producing a randomly directionally unstable liquid discharge comprising a body defining therein a chamber having a liquid inlet thereto and a liquid outlet duct from the chamber to the exterior of the body, the liquid flow area of the inlet to the chamber being at least as great as the minimum liquid flow area of the outlet duct, the chamber being defined cooperatively with the inlet and the outlet duct for substantially linear flow of liquid through the outlet duct during operation of the nozzle, the outlet duct having a straight throat portion of constant diameter communicating from the chamber to a flared second portion of the duct, the duct throat portion having a ratio of length to diameter in the range of from about 4 to about 18, the angle of flare of the duct second portion relative to the axis of the duct throat portion at the end of the duct second portion remote from the duct throat portion being greater than 6.degree., the duct throat and second portions being coupled by a flared transition section in which the angle of flare of the duct is not greater than 6.degree., the diameter of the inlet end of the duct transition section and the outlet end of the duct throat portion being equal.
Dependencies are inferred from the claim text.