Hydraulic machine, in particular hydraulic pressure exchanger
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United States of America Patent
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Jan 31, 2017
Grant Date -
Feb 19, 2015
app pub date -
Aug 4, 2014
filing date -
Aug 15, 2013
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A hydraulic pressure exchanger comprising a drum rotatable about an axis, a front plate arrangement having a front plate and a pressure shoe, said drum including a plurality of working cylinders, each working cylinder having a front opening and, during rotation of this drum, said front opening sliding over said pressure shoe along a path, said pressure shoe having at least two kidney-shaped openings, said kidney-shaped openings being arranged in said path. The hydraulic pressure exchanger should be operated with low noise. To this end said pressure shoe is arranged between said drum and said front plate and comprises at least one pressure cylinder arranged between two neighboring kidney-shaped openings, a piston being arranged in said pressure cylinder and resting against said front plate, said pressure cylinder being connected with a supply opening in a side of the pressure shoe opposite said front plate, said opening at least partly overlapping said path.
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