Poppet valve having an improved valve seat

F - Mech Eng,Light,Heat,Weapons – 16 – K

Patent

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Details

F16K 1/38 (2006.01) F15B 13/04 (2006.01) F15B 13/044 (2006.01) F16K 11/04 (2006.01)

Patent

CA 2474539

A pneumatic valve assembly (10, 110) including a valve body (12, 112) having an inlet port (30, 130) in fluid communication with a source of pressurized air and a valve bore (36, 136) extending axially within the valve body (12, 112) with a valve member (46, 146) movable between predetermined positions within the valve bore (36, 136). The valve member (46, 146) selectively movable to direct a flow of pressurized air from the inlet port (30, 130) through the valve bore (36, 136) to an outlet port (32, 132). A valve element (52, 152) is disposed upon the valve member (46, 146) having an angular valve sealing surface (62, 162), and a valve seat (82, 182) is defined in the valve bore (36, 136) formed at an oblique angle to provide a sealing contact with the valve sealing surface (62, 162) when the valve member (46, 146) is in a closed position thereby interrupting said flow of pressurized air.

La présente invention concerne un ensemble soupape pneumatique (10, 110) comprenant un corps de soupape (12, 112) muni d'un orifice d'entrée (30, 130) en communication fluidique avec une source d'air sous pression, un diamètre de soupape (36, 136) s'étendant axialement à l'intérieur du corps de soupape (12, 112), et un organe soupape (46, 146) capable de se déplacer entre des positions prédéterminées à l'intérieur du diamètre de soupape (36, 136). L'organe soupape précité (46, 146) peut être déplacé sélectivement de façon à diriger, à travers le diamètre de soupape (36, 136) vers un orifice de sortie (32, 132), un flux d'air sous pression en provenance de l'orifice d'entrée (30, 130). Un élément soupape (52, 152) est disposé sur l'organe soupape précité (46, 146), lequel élément présente une surface d'étanchéité de soupape angulaire (62, 162), et un siège de soupape (82, 182) est défini dans le diamètre de soupape (36, 136) et formé à angle oblique de façon à établir un contact d'étanchéité avec la surface d'étanchéité de soupape (62, 162) lorsque l'organe soupape (46, 146) se trouve en position fermée, interrompant de la sorte le flux d'air sous pression.

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