Low rise rate direct acting relief valve
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United States of America Patent
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-
Sep 22, 2009
Grant Date -
Nov 13, 2008
app pub date -
May 7, 2007
filing date -
May 7, 2007
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A relief valve assembly. The relief valve assembly has a housing that houses a sleeve element that surrounds a spool that has a spring guide disposed therein and is biased away from the spool by a spring. A fluid flow path is created from a valve exit of the assembly through the sleeve and spool via a series of openings, grooves and orifices in at least one position of the relief valve assembly. The fluid flow path acts to reduce pressure rise rate.
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