F - Mech Eng,Light,Heat,Weapons – 16 – K
Patent
F - Mech Eng,Light,Heat,Weapons
16
K
137/127
F16K 11/044 (2006.01) F16K 11/048 (2006.01)
Patent
CA 1273267
Title: SWITCHING VALVE Inventor: DONALD G. MCKENZIE ABSTRACT OF THE DISCLOSURE A two position four-way switching valve has two inputs and two outputs. In one position of the valve, each input is connected to a defined one of the outputs, while in a second position the outputs are reversed. In a specific embodiment, the valve includes an inner cylindrical member enclosed within an outer casing having an opening forming an outlet. The other outlet and the two inlets are formed by tubes that extend inwardly through the casing and communi- cate with ports in the inner cylindrical member. The ports include first, second and third ports are spaced axially along the cylindrical member. Fluid entering through the inlets is routed to the outlets by plug-type valves including seals carried by an axially movable stem extending through the cylindrical member.
559867
Bereskin & Parr
Delta Catalytic Engineering And Construction Ltd.
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