VIBRATORY PUMP VALVE Russian patent published in 2002 - IPC

FIELD: mechanical engineering; submersible vibratory pumps. SUBSTANCE: proposed mushroom-shaped valve of vibratory pump stem with conical catch and cap with working surface. Valve is made of elastic material. Flat back surface of cap serves as working surface of valve. Cup is made integral with valve between working surface and stem. Spherical cavity located on valve axis is made on cap surface opposite to working surface. Diameter of maximum section of cavity is equal to diameter of stem. Volume of spherical cavity is equal to volume of cup. EFFECT: increased capacity of pump, simplified design, reduced cost of manufacture of pump suction unit, increased service life of pump. 1 dwg