HYDRAULIC DISTRIBUTOR Russian patent published in 1999 - IPC

Abstract RU 2131066 C1

FIELD: control at attached equipment. SUBSTANCE: hydraulic distributor has hydraulic locks controllable for obtaining floating position through interaction of main and additional spool valves. Additional spool valve is used for opening check valve shutting off the hydraulic line loaded by maximum pressure of user and transmitting its signal to hydraulic lock control chamber. Axial relief of additional spool valve reduces force required for shifting main spool valve in connecting the floating position. EFFECT: enhanced reliability. 5 cl, 3 dwg

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RU 2 131 066 C1

Authors

Vasil'Ev L.V.

Fajnshtejn A.Ja.

Chervjakov E.N.

Dates

1999-05-27—Published

1997-08-20—Filed