Valve arrangement for reciprocating machinery such as a pump...

F - Mech Eng,Light,Heat,Weapons – 04 – B

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Details

F04B 53/10 (2006.01) F04B 39/10 (2006.01) F16K 15/02 (2006.01) F16K 15/06 (2006.01)

Patent

CA 2479917

A valve arrangement for reciprocating machine, where the arrangement (1) comprises an in-valve (18) and an out-valve (19), each valve (18), (19) being a springloaded one-way valve designed to open for flow when the pressure differential in the direction of flow provides a force that exceeds the spring tension, wherein the valves (18, 19) are mounted in a casing (8) that forms or is connected to the cylinder head of the reciprocating engine (2). The in- valve (18) and the out-valve (19) are mounted in a sleeve (16) designed to be fitted in a bore (9) in the casing (8), and where fluid may flow to the sleeve (16) from an inlet (11) in the casing (8) and into the sleeve (16) via the in- valve (18), and where the sleeve (16) is provided with at least one perforated area where fluid may flow radially out of or into the sleeve (16) via holes (50, 51), thereby flowing to or from a passage (14, 15) that forms a perpendicular or near perpendicular connection with the bore (9).

Ensemble (1) à valves pour machine à mouvement alternatif, qui comporte une valve d'entrée (18) et une valve de sortie (19), chaque valve (18, 19) étant une valve de non retour contrainte par ressort, destinée à s'ouvrir pour laisser passer du fluide lorsque le différentiel de pression dans le sens du flux fournit une force supérieure à la tension du ressort. Ces valves (18, 19) sont montées dans un carter (8) qui forme la culasse du moteur à mouvement alternatif (2) ou qui est connecté à cette culasse. La valve d'entrée (18) et la valve de sortie (19) sont montées dans un manchon (16) destiné à être introduit dans un alésage (9) ménagé dans le carter (8). Du fluide peut s'écouler vers le manchon (16) à partir d'un orifice d'entrée (11) ménagé dans le carter (8) et pénétrer dans ledit manchon (16) via la valve d'entrée (18). Le manchon (16) est doté d'au moins une zone perforée qui permet au fluide de s'écouler radialement hors du manchon (16) ou de pénétrer dans ledit manchon (16) via des trous (50, 51), ledit fluide s'écoulant alors vers un passage (14, 15) ou à partir d'un passage (14, 15) qui forme une connexion perpendiculaire ou pratiquement perpendiculaire avec l'alésage (9).

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