Fluid handling – Line condition change responsive valves – With separate connected fluid reactor surface
Patent
1990-12-05
1991-12-10
Hepperle, Stephen M.
Fluid handling
Line condition change responsive valves
With separate connected fluid reactor surface
137508, 251 86, F16K 1734
Patent
active
050709020
ABSTRACT:
A water injection valve for use in a well bore having a cylindrical valve body with an axial water passage, a cylinder slidably mounted therein with an upstream control shoulder, lateral fluid ports in the cylinder upstream of the seal between the cylinder and the valve body and an open downstream end which restricts fluid flow when the cylinder impinges upon a conical valve seat. The cylinder is adjustably biased away from the valve seat by a spring and permits fluid flow no greater than a predetermined maximum rate despite increases in pressure differential across the valve.
REFERENCES:
patent: 2623331 (1952-12-01), Greening
patent: 2967543 (1961-01-01), Viergutz
patent: 3431944 (1969-03-01), Sakuma
patent: 3593742 (1971-07-01), Taylor
patent: 4080993 (1978-03-01), Lind
patent: 4785847 (1988-11-01), Steer et al.
Hepperle Stephen M.
McMurry Oil Tools, Inc.
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