VARIABLE ANGLE SPRAY CONE INJECTION
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United States of America Patent
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Issued Date -
Apr 20, 2017
app pub date -
Oct 16, 2015
filing date -
Oct 16, 2015
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Abstract
A method of issuing a spray cone from a nozzle includes modulating flow to two separate first and second fluid circuits, each connected to a common injection point orifice to vary spray angle on a substantially hollow spray cone over time to create a full spray cone. Modulating can include controlling first and second flow modulators, connected to the first and second fluid circuits, respectively, to coordinate oscillating flow rate modulation of both of the first and second fluid circuits. Controlling can include controlling the oscillating flow rate modulation for the first flow modulator to be out of phase with, to be in antiphase with, to be vertically shifted in magnitude relative to, and/or to have an amplitude that is equal to that of the second flow modulator.
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