Electro-hydraulic pressure reducing and relieving valve with flow force control for large flow capacity
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United States of America Patent
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May 12, 2020
Grant Date -
May 1, 2014
app pub date -
Oct 24, 2013
filing date -
Oct 24, 2012
priority date (Note) -
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status (Latency Note)
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Abstract
A hydraulic valve is provided that includes an interior spool and a surrounding cage. A supply port and a return port are connected to the cage and the interior of the cage is in fluid communication with a control port. The interior spool is positioned between an on and off position using a solenoid and a spring. In the off position, slots in the spool and cage align to place the return port in fluid communication with the interior of the spool. Conversely, in the on position, different slots in the spool and cage align to place the supply port in fluid communication with the interior of the spool.
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