Rod Guide With Wrapping Vanes
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United States of America Patent
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Issued Date -
Nov 22, 2012
app pub date -
May 19, 2011
filing date -
May 19, 2011
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A sucker rod guide includes a pair of vanes, offset from one another by 180°, with each vane wrapping approximately 180° around the rod guide. The vanes wrap around the body of the guide, and are neither spiral nor helical because the surfaces of the vanes extending radially outwardly from the body of the rod guide define two dimensional planar surfaces, i.e. flat planes. The vane thickness varies from a maximum at each end of the vane to a minimum at a midway point along the vane. This shape assists in moving fluid up the production tubing when the guide is applied to a rotary system, such as a progressive cavity pump. This shape also enhances the erodable volume of the vanes at the extremities, while providing a less inhibiting path for the flow of fluid in reciprocating applications.
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