THREE-LINE HYDRAULIC DISTRIBUTOR Russian patent published in 1998 - IPC

FIELD: hydraulic distributors; hydraulic systems of flying vehicle temperature control equipment. SUBSTANCE: three-line hydraulic distributor includes body 1 with seats 2 and 3, inlet line 4 and outlet lines 5 and 6. Mounted on body 1 is drive 7 for reciprocating motion whose rod 8 is connected with lock made in the form of two coaxial valves 12 and 13 one of which is spring-loaded relative to body 1 and other is located in outlet chamber. Rod 8 of drive is provided with damper whose housing is fitted with rod 11 connected with valve 12 located in outlet chamber. Valve 13 located in outlet line 6 is articulated relative to body 1. Between valves 12 and 13 spring 14 is fitted. Interaction of valves 12 and 13 is effected by means of rods; one of them has spherical face. Damper is connected with body 1 by means of bellows 17. EFFECT: enhanced reliability. 1 dwg