F - Mech Eng,Light,Heat,Weapons – 16 – K
Patent
F - Mech Eng,Light,Heat,Weapons
16
K
137/89
F16K 11/02 (2006.01) F16K 11/044 (2006.01)
Patent
CA 1044558
MINIATURE FOUR-WAY VALVE ABSTRACT OF THE DISCLOSURE A miniature four-way valve, particularly for the con- trol of a pressurized gas, such as air, constructed and arranged so that it can be made in small sizes without excessive expense while being reliable, sturdy and resistive to damage. The valve includes a housing having ports formed therein which accommodate conventional conduits of rather large size, which ports communi- cate with a central passage containing therein a slidable valve plunger of extremely small size. The inlet port communicates with a chamber disposed in surrounding relationship to the valve plunger, which chamber is defined between a pair of op- posed tapered walls having a concave configuration. These walls function as valve seats and coact with a resilient seal ring secured to the valve plunger for creating a sealing engagement similar to a poppet valve. The shifting movement of the plunger, which causes the seal ring to be shifted into sealed engagement with one of the opposed tapered walls, controls the flow of fluid from the inlet port to one of two load ports, and similarly con- trols the flow of fluid from the two load ports to respective exhaust ports.
271543
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