SYSTEM, INCLUDING A VARIABLE ORIFICE ASSEMBLY, FOR HYDRAULICALLY MANAGING PRESSURE IN A FLUID DISTRIBUTION SYSTEM BETWEEN PRESSURE SET POINTS
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United States of America Patent
Stats
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N/A
Issued Date -
N/A
app pub date -
Nov 24, 2009
filing date -
Oct 29, 2007
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A system for hydraulically managing fluid pressure in a fluid distribution system between pressure set points includes a main valve having a fluid inlet and outlet. The main valve is configured to open to increase fluid flow therethrough and to close to reduce the fluid flow therethrough. A variable orifice assembly is coupled to the main valve and has fluid apertures formed in a housing thereof to create a fluid flow pathway therebetween. A valve stem is variably positioned within the housing to alter the fluid flow between the fluid apertures. A first control pilot is in fluid communication with the main valve and a first fluid aperture of the variable orifice assembly. A second control pilot is in fluid communication with the main valve and a second fluid aperture of the variable orifice assembly. The valve position and fluid flow are variable as the main valve opens and closes.
First Claim
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