Control valve and electrical and hydraulic control system
作者： Lawrence E. Satterwhite , Lawrence F. Angelo
DOI:
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摘要: A control valve and a multiple system therefor for controlling plurality of remotely positioned hydraulically actuated underwater devices. The includes first second equal size pilot pistons acted upon by ports, respectively, moving the to either an open or closed position, third fourth unequal ports position. may be operated in electro-hydraulic mode use electrically valves supply fluid ports. In addition, can hydraulic
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