CENTRIFUGAL PUMP Russian patent published in 1995 - IPC

FIELD: fan engineering. SUBSTANCE: spiral outlet branch pipe of the housing has radial outlet and consists of spiral collector and delivery branch pipe. The driving disk of the working wheel with vanes is coupled with the driving shaft. The wheel is mounted inside the spiral outlet branch pipe. The radial section of the inner space of the spiral collector and the middle line of the delivery branch pipe are Bernoulli lemniscates, the inflection point being located at the initial nearest section. Each radial section of the inner space of the collector is defined by a part of the straight which is at an acute angle to the tangent to the surface of the driving disk from the side of the vanes in a point on its outer diameter and curve having one intersection point with any straight lines only, the straight lines being parallel to the axis of rotation of the wheel. EFFECT: improved design. 2 dwg