FIELD: instrument making.
SUBSTANCE: proposed hydraulic control valve is intended for electrohydraulic power boosters that make the main component of electrohydraulic displacement and throttling servo drives. It comprises cylindrical pistons translating in rectangular holes formed by the spacer, bottom and three parallelepipeds attached to the said spacer. Required tightness along the edges of cylindrical cylinders is ensured as it is in the flat rotary slide valve with the help of simple and cheap "flat" technology. Tightness along cylinders end faces is ensured as it is in the flat rotary slide valve with the help of simple and cheap "flat" technology. Tightness along the cylinders cylindrical surface is ensured with the help of relatively simple technology comprising selecting necessary size of square hole to match actual diametre of cylindrical piston, or by fitting the said piston in actual size of the said square hole.
EFFECT: longer service life.
3 dwg
