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US 4,784,176 AGranted
Anti-water hammer flow regulator valve
OwnerAncel M. Cloughinventor
Life of this patent
Estimating the term…
Abstract
Flow regulator valves that adjust to various fluid flow line pressure variations to stabilize flow to designed regulated flow rates in various flow line sizes and with fluid pressure build up in the line encountered such as with water hammer are combined with through flow relief valving to diffuse excessive line pressures. This includes the addition of a relief valve, of any of several configurations, to a flow regulating valve, in several configurations with the relief valve opening to relieve higher than flow regulating valve design working pressures.
Claims5
A combination liquid flow regulating and anti-water hammer shock wave relief valve insertable in a liquid flow piping system comprising:
- a valve housing having open fitting ends;
- an upstream end cap, and a downstream end cap inserted into opposite ends of said valve housing;
- first valve means and second valve means mounted within said valve housing;
- one of said first and second valve means being a liquid flow regulating valve, and the other of said first and second valve means being a predetermined upstream to downstream differential pressure opening valve;
- and one of said first and second valve means is mounted in the other of said first and second valve means;
- wherein said predetermined upstream to downstream differential pressure opening valve is a pressure relief valve;
- resiliently deflectable overload valve spring means mounted in said pressure relief valve with resilient bias force of said overload valve spring means biasing said pressure relief valve toward the closed state and with sufficient upstream to downstream differential pressure, relative to said pressure relief valve, resilient deflection of said overload valve spring means with opening of said pressure relief valve;
- said liquid flow regulating valve is mounted within said pressure relief valve;
- said pressure relief valve includes a relief valve body slidably mounted in said valve housing;
- housing liquid passage means in said valve housing spanning the longitudinal length of said relief valve body;
- relief valve seat means;
- and resiliently compressible spring means contained in chamber means between said valve housing and said relief valve body resiliently biasing said relief valve body toward and into seating engagement with said relief valve seat means closing said relief valve from through flow of liquid to said housing liquid passage means and out through said downstream end cap;
- said relief valve seat means includes a conical surface on the inner end of said upstream end cap;
- and a conical surface on the upstream end of said relief valve body matching and seatable in said conical surface of said upstream end cap.
11 more elements
A combination liquid flow regulating and anti-water hammer shock wave relief valve insertable in a liquid piping system comprising:
- a valve housing having open fitting ends;
- an upstream end cap, and a downstream end cap inserted into opposite ends of said valve housing;
- first valve means and second valve means mounted within said valve housing;
- one of said first and second valve means being a liquid flow regulating valve, and the other of said first and second valve means being a predetermined upstream to downstream differential pressure opening valve;
- and one of said first and second valve means is mounted in the other of said first and second valve means;
- wherein said predetermined upstream to downstream differential pressure opening valve is a pressure relief valve;
- resiliently deflectable overload valve spring means mounted in said pressure relief valve with resilient bias force of said overload valve spring means biasing said pressure relief valve toward the closed state and with sufficient upstream to downstream differential pressure, relative to said pressure relief valve, resilient deflection of said overload valve spring means with opening of said pressure relief valve;
- said liquid flow regulating valve is mounted within said pressure relief valve;
- said pressure relief valve includes a relief valve body slidably mounted in said valve housing;
- housing liquid passage means in said valve housing spanning the longitudinal length of said relief valve body;
- relief valve seat means;
- and resiliently compressible spring means contained in chamber means between said valve housing and said relief valve body resiliently biasing said relief valve body toward and into seating engagement with said relief valve seat means closing said relief valve from through flow of liquid to said housing liquid passage means and out through said downstream end cap;
- said liquid flow regulating valve includes upstream to downstream liquid flow through orifice means;
- wherein said liquid flow regulating valve includes valve piston means slidably mounted in a through opening extended from the upstream end to the downstream end of said relief valve body;
- said valve piston having a piston head and a reduced diameter cylindrical shank;
- valve means mounted in said through opening;
- position restraining means holding said valve ring means longitudinally in place in said through opening;
- liquid through flow means through said valve ring means;
- regulator valve spring means resiliently compressed between piston head and said valve ring means resiliently biasing said valve piston in the upstream direction to an upstream limit position in said relief valve body against piston travel limit means mounted in said relief valve body;
- and said through flow orifice means is orifice opening means through the wall of said reduced diameter cylindrical shank positioned to clear an inner ring position of said valve ring when said valve piston is in its upstream limit position and when the piston is moved in the downstream direction against the resilient bias of said regulator valve spring means said orifice opening means is increasingly restricted in through flow area by said inner ring position of said ring as said reduced diameter cylindrical shank is slid through said inner ring portion in the downstream direction for liquid flow regulation through the orifice opening means to a spring chamber and on through said liquid through flow means through said valve ring means and on out through said downstream end cap.
17 more elements
Dependencies are inferred from the claim text.