Fluid handling – Systems – Multi-way valve unit
Patent
1982-06-23
1984-07-17
Schwadron, Martin P.
Fluid handling
Systems
Multi-way valve unit
13759618, 137637, 137869, F17D 318
Patent
active
044600178
ABSTRACT:
A flow diversion valve having first and second tubular spool housings joined at a contiguous edge to form an assembly, each of the housings having a flow passageway intermediate the housing ends, the passageways being opposite each other, and each of the housings having first and second ports formed in the sidewall spaced 90.degree. from the flow passageways, with each housing having one port towards one end and the other port towards the other end, with the ports being on opposite sides, and the valve having a closed chamber on each side of the assembly connecting one port of each of the spool housings, each of the flow chambers having a flow passageway therein so that the valve has a total of four flow passageways, and a spool slidably positioned in each of the spool housings, each of the spools having spaced apart pistons sealably engaging the internal surfaces of the housing, the spools being connected for conjoint reciprocal positioning within the spool housings so that in one position one port in the first spool housing communicates with one port of the second spool housing, and in another position, the other ports of the spool housing are connected, thereby providing means of switching the direction of fluid flow within the valve.
REFERENCES:
patent: 2754840 (1956-07-01), Hicks
patent: 2974643 (1961-03-01), Gillham et al.
patent: 3364943 (1968-01-01), Keller
patent: 3580284 (1971-05-01), Bini et al.
patent: 3605810 (1971-09-01), Moroney
patent: 3668923 (1972-06-01), Grove et al.
patent: 3682198 (1972-08-01), Davis et al.
patent: 3972347 (1976-08-01), Perkins
Hepperle Stephen M.
Schwadron Martin P.
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