Fluid handling – With repair – tapping – assembly – or disassembly means – Assembling – disassembling – or removing cartridge type valve
Patent
1989-08-17
1991-10-15
Hepperle, Stephen M.
Fluid handling
With repair, tapping, assembly, or disassembly means
Assembling, disassembling, or removing cartridge type valve
1374542, 137554, 137599, 13762538, F16K 326
Patent
active
050565516
ABSTRACT:
A plurality of slide valve elements having plural axial-spaced annular parts and an internal slide are inserted into a bulkhead in a fluid conduit from a downstream side of the bulkhead, locked in place by a bayonet coupling and set screw, and project through the bulkhead into the upstream conduit. Pneumatic lines connecting the slide valve element actuator to pilot valves are brought out the throat of the valve element to the downstream side. Pilot valves are radially spaced around the exterior of the valve to permit the pneumatic lines to be made identical, thereby to minimize adverse timing tolerances in operation due to pressure variations. Ring manifolds surround the valve adjacent respective pilot valve arrangements to further reduce adverse timing tolerances due to pressure variations, the manifolds being directly connected to the respective pilot valves. Position sensors are provided the valve element slides to signal the precise time at which a slide reaches or passes through a particular point in its stroke to initiate a calibrated timing function.
REFERENCES:
patent: 3256905 (1966-06-01), Griswold et al.
patent: 3875964 (1975-04-01), Friedland
patent: 3994315 (1976-11-01), Muller et al.
patent: 4842017 (1989-06-01), Reynolds
Wada James M.
Yang Jefferson Y. S.
Eaton Corporation
Hepperle Stephen M.
Vande Zande L. G.
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