ELECTROHYDRAULIC UNIT Russian patent published in 2004 - IPC

Abstract RU 2233768 C1

FIELD: control systems of flying vehicles.

SUBSTANCE: proposed electro-hydraulic unit has housing with passages connected with pressure and return hydraulic lines and cavities of power hydraulic cylinder, electro-hydraulic power amplifier, servo unit in form of hydraulic cylinder with piston connected with spool valve distributor, electro-hydraulic valve, hydro-mechanical unit in form of locking mechanism with two-stage pistons located in housing forming two external and one internal chambers and differential bell crank. One of articulation units of bell crank is connected with locking mechanism and other articulation unit is connected with spool valve distributor. Cut-in valve is provided with distributing plunger to which pressure and return hydraulic lines, lines of servo unit, locking mechanism and electro-hydraulic power amplifier are brought. External and internal cavities of locking mechanism are connected with pressure hydraulic line by means of cut-in valve.

EFFECT: improved process of shifting unit to standby mode.

1 dwg

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RU 2 233 768 C1

Authors

Red'Ko P.G.

Bortsov A.A.

Tychkin O.V.

Banin Ju.M.

Ushakov Ju.A.

Dates

2004-08-10—Published

2002-12-04—Filed