FIELD: machine building.
SUBSTANCE: valve assembly to control fluid feed from fluid manifold to working chamber of mechanism handling said fluid comprises main valve, solenoid and core. Main valve comprises main valve element with surface fit and main valve seat and features open and sealing positions. Core can displace along the channel extending between first and second positions. With core in first position, main valve element defects to sealing position. With core in second position, main valve element defects to open position. Main valve element comprises ferromagnetic element. Valve comprises extra magnetic circuit. The latter can direct magnetic flux through ferromagnetic element with main valve opened to retain is element in open position. Invention covers also the mechanism operating with fluid.
EFFECT: efficient and reliable design.
15 cl, 6 dwg
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