Electrostatic atomizers
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United States of America Patent
Stats
-
Nov 5, 2002
Grant Date -
N/A
app pub date -
Dec 30, 1999
filing date -
Dec 31, 1998
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An electrostatic atomizer includes a body defining an interior space and a discharge orifice communicating with the interior space. An emitting electrode or electron gun is disposed inside the body so as to apply charges to the fluid passing through the interior space. A counter electrode is disposed outside the body. The exposed surfaces on the interior of the body are formed from a dielectric material so that there are no substantial electric field between exposed conductive elements on the inside of the body. This arrangement minimizes soot buildup and plugging of the orifice. The device may include a single element defining numerous orifices and formed by micro-machining techniques such as those used in fabrication of semiconductor devices. Orifice sizes as small as a few micrometers can use successfully to provide controllable atomization at extremely low flow rates.
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