Internal gear pump
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United States of America Patent
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Jun 16, 2020
Grant Date -
Jan 4, 2018
app pub date -
Jun 27, 2017
filing date -
Jun 29, 2016
priority date (Note) -
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status (Latency Note)
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Abstract
An internal gear pump includes a pinion, a ring arranged around the pinion, and a cylindrical wall arranged around the ring. A support element, on which the pinion and the ring are supported, carries high-pressure liquid towards a recess located at the junction between the ring and the cylindrical wall, and also carries low-pressure liquid towards another recess located at another point of the junction between the ring and the cylindrical wall. The recess allows the load of the ring on the cylindrical wall to be reduced.
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