Injector having swirl structure downstream of valve seat
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United States of America Patent
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May 2, 2017
Grant Date -
Jan 9, 2014
app pub date -
Sep 6, 2013
filing date -
Jun 11, 2009
priority date (Note) -
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Abstract
An atomizing injector comprises a body having a central bore with a valve situated in the bore, leading to a chamber. An actuator moves the valve between closed condition and open conditions, selectively exposing the chamber to a flow of pressurized liquid. A discharge port extends from the chamber to a discharge orifice. A swirl element is situated in the chamber, while leaving a free space in the chamber immediately above the discharge port. When the valve is opened, liquid flows into the chamber, through the swirl element into the space, forming a whirl in the space before passing through the discharge port and exiting the discharge orifice as an atomized whirling spray.
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