PRESS FOR EXTRACTING LIQUID OIL FROM OIL SEEDS Russian patent published in 1997 - IPC

FIELD: food industry. SUBSTANCE: press has seed chamber and screw mounted inside the chamber. The cantilever end of the screw together with the outlet opening of the seed chamber defines a controllable ring space for discharging cake. The screw is made up as two portions. The height of the screw blade in the outlet portion exceeds the width of the minimum ring space by a factor of 8-9. The height of the screw blade in the inlet portion exceeds the screw blade height in the outlet portion of the screw by 30-100%. The central angle of the portions, which form the screw blade in the outlet portion, ranges from 210° to 255° whereas that of the inlet portions ranges from 180° to 270°. The end of the blade in the inlet portion and beginning of the blade in the outlet portion are mounted on the screw shaft to provided an angular space. EFFECT: enhanced efficiency. 2 cl, 5 dwg