ENTRAPPING PUMP FOR VISCOUS LIQUIDS Russian patent published in 1995 - IPC

FIELD: pumps for viscous liquids mounted in narrow spaces, in particular, for lubricating doblies and looms. SUBSTANCE: entrapping chamber of stator is extended in way of rotation of rotor and is open at front end in way of rotation of rotor. Exhaust hole is provided inside entrapping chamber at its opposite end. Guide rib limits entrapping chamber and is received by clearance between rotor and stator; this rib is provided with seals at its ends. Inside entrapping chamber there are separating walls which form vortex chamber. Gaps are made by means of separating wall together with end wall of rotor. These gaps reduce in succession in way of rotation of rotor and their sizes are of the same order as thickness of layer of liquid entrapped by rotor. EFFECT: enhanced reliability. 4 cl, 3 dwg