F - Mech Eng,Light,Heat,Weapons – 16 – K
Patent
F - Mech Eng,Light,Heat,Weapons
16
K
F16K 17/06 (2006.01) F15B 13/01 (2006.01)
Patent
CA 2234978
In order to achieve repeatable, consistent operation of a counterbalance valve, a poppet valve element within the valve has a radial bore therein in communication with a control fluid port an an axial bore therein which receives a rod that is anchored to a poppet valve cage that surrounds the poppet valve element. The poppet valve element is urged by a spring into engagement with a valve seat and pilot pressure is applied in opposition to the spring. By virtue of this arrangement, control fluid pressure is applied via the rod directly to the valve body in which the poppet valve element and cage are mounted. By changing the diameter of the rod and axial bore through the poppet valve element which receives the rod, the relief set pressure can easily be changed.
Pour obtenir le fonctionnement cohérent répétable d'une valve d'équilibrage, un clapet à l'intérieur de la valve a un trou radial en communication avec un orifice de fluide de commande et un trou axial qui reçoit une tige qui est ancrée à la lanterne qui entoure le clapet. Le clapet est mis en prise par un ressort sur un siège de clapet et une pression pilote est appliquée en opposition au ressort. Grâce à ce dispositif, la pression du fluide de commande est appliquée par le biais de la tige directement au corps de la valve dans lequel sont montés le clapet et la lanterne. En changeant le diamètre de la tige et du trou axial dans le clapet qui reçoit la tige, on peut facilement changer la pression de détente établie.
Dana Corporation
Ridout & Maybee Llp
LandOfFree
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