Method and apparatus for adjusting impeller clearance in a pump
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United States of America Patent
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-
May 17, 2005
Grant Date -
Apr 28, 2005
app pub date -
Oct 28, 2003
filing date -
Oct 28, 2003
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An impeller clearance adjustment system for providing for a desired clearance between an impeller and a housing by adjusting a spacing (10) between a thrust housing (11) and a frame (12) using a plurality of evenly-spaced shoulder screws (21) locked into a screwed-in position by respective lock nuts (22). A shoulder portion (21a) of each shoulder screw (21) keeps the thrust housing (11) from coming closer to the frame (12) than the adjusted spacing (10).
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