HYDRAULIC LOGIC ELEMENT Russian patent published in 1994 - IPC

FIELD: hydraulics. SUBSTANCE: slide valve is provided with two grooves having the same width. The grooves are separated with a collar whose width is lesser than the width of the grooves, e.g. is half width of the groove. The right groove is coupled with the left face through a passage and the left groove is coupled with the right face of the slide valve. Width of the groove provided in the cone is equal to the width of the grooves of the slide valve. EFFECT: simplified design. 2 cl, 1 dwg