Device for testing mechanical seal performance
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United States of America Patent
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Apr 25, 2017
Grant Date -
May 26, 2016
app pub date -
Dec 27, 2013
filing date -
May 6, 2013
priority date (Note) -
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Abstract
A device for testing mechanical seal performance includes a main shaft (4), a working chamber (18) with two end covers (6, 13) respectively located at two ends thereof, and two groups of mechanical seals to be tested (7); wherein a shaft sleeve (5) and the main shaft (4) form a clearance fit and penetrate through the end covers (6, 13) at two ends of the working chamber (18) together; the shaft sleeve (5) extends outside U-shaped openings (23) which are arranged at two ends of the end covers (6, 13) and arranged on the same generatrix; driven pins (15) are arranged on the locations of the main shaft (4) corresponding to the U-shaped openings (23); the middle part of the shaft sleeve (5) is provided with two segments of threads having the same thread pitch and opposite rotating directions.
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