Pumping system
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United States of America Patent
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May 29, 2012
Grant Date -
Feb 12, 2009
app pub date -
Feb 16, 2006
filing date -
Apr 12, 2005
priority date (Note) -
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status (Latency Note)
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Abstract
A pumping system for pumping drilling fluid during the driving or sinking of bore holes includes a pump unit, a rotary drive unit configured to drive the pump unit, a gearbox that includes a driving gear and a driven gear, and a pump shaft drive. The rotary drive unit is operatively connected with the pump unit via the gearbox, and the driven gear of the gearbox is nonrotatably connected with the pump shaft drive.
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