Sealing arrangement on a pump shaft
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United States of America Patent
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Sep 12, 2017
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N/A
app pub date -
Jun 1, 2015
filing date -
Jul 2, 2014
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Abstract
A sealing arrangement for a pump shaft, includes a restrictor section (18) arranged along the shaft (16) and separating a high-pressure chamber (12) of the pump from a sealing chamber (20), a seal (22) arranged on the shaft (16) and between the sealing chamber (20) and a low-pressure chamber (30), a restrictor leakage line (34) leading from the sealing chamber (20) to the exterior, and a seal leakage line (42) leading from the low-pressure chamber (30) to the exterior, wherein a section of the seal leakage line (42) runs through the interior of the restrictor leakage line (34).
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