Pressure balanced rotation spool valve
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United States of America Patent
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Dec 6, 2016
Grant Date -
Feb 6, 2014
app pub date -
Jan 26, 2012
filing date -
Jan 28, 2011
priority date (Note) -
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status (Latency Note)
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Abstract
The present invention regards a valve arrangement comprising a housing and a mainly cylindrical valve element arranged rotatable within the housing, wherein the housing has at least one supply port, at least one exhaust port and at least one outlet/inlet opening. These ports and opening are arranged at a distance from each other along a rotation axis of the valve element. The valve element comprises at least one first bore extending along the rotation axis connecting the supply port with the at least one outlet/inlet opening in one position of the valve element, and at least one second bore extending along the rotation axis connecting the same outlet/inlet opening with the exhaust port in a second position of the valve element, the bores being configured such that they are separated from each other.
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