Apparatus and method for electrocrushing rock
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United States of America Patent
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May 29, 2012
Grant Date -
Jan 7, 2010
app pub date -
Jul 14, 2009
filing date -
Aug 20, 2004
priority date (Note) -
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Abstract
The present invention provides for pulsed power breaking and drilling apparatuses and methods. The present invention comprises two pulsed power systems coordinated to fire one right after the other. The first pulsed power system, comprising a spiker, may create a high voltage pulse that breaks down the insulative properties of the substrate and may create an arc channel in the substrate. It is designed for high voltage but low energy, at high impedance. The second pulsed power system, comprising a sustainer, is designed to provide high current into the arc, but at low voltage, thus better matching the impedance of the arc and achieving much more efficient energy transfer.
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