TWO-SCREW PUMP Russian patent published in 1995 - IPC

FIELD: chemical industry. SUBSTANCE: shafts are set in bearings. The shafts are interconnected kinematically through gears and have screw working members engaging with each other and seal member. The members have parts with opposite screw cuttings. The shafts are coaxially set in thrust bearings and provided with support sleeves from the side of the faces. The sleeves are mounted for permitting movement along cantilevers and secured outside of the working chamber. The screw members and sealing unit are detachable. Each sleeve is received in the cylindric opening provided in the housing and has adjusting wedges and stop bolt. the bolt interacts with the side and face surfaces of the sleeve. The cut parts have different sizes. The suction branch pipe is provided with a baffle to define two insulated branch pipes. EFFECT: enhanced efficiency. 3 cl, 4 dwg