GB191026030A - Improvements in Rotary Pumps and the like. - Google Patents

Abstract

26,030. Heys, W. G. Nov. 9. Axial-flow type.-Relates to rotary pumps, which may be used as turbines, having series of concentrically disposed vanes mounted on a rotary member and co-operating with series of fixed vanes, the rotary vanes of each series impelling the fluid in alternately opposite axial directions, and consists in projecting the ends of the rotary vanes so that they describe annular paths which surround the co-operating stationary vanes. The frame 1 has an inlet 2 leading to a chamber 4 communicating with a rotary member 5 mounted on a shaft 6, the central portion of the rotor being provided with blades 8 which impel the fluid radially into the path of helical vanes 9 mounted on the member 5 in the form of spokes. These blades extend over the blades 8 and impel the fluid axially into contact with fixed rams 14, where the surfaces X deflect it into the path of the next series of vanes 15, which extend over the vanes 14 and impel the fluid in the opposite axial direction. The walls Y serve to reduce the fluid velocity. Further series of fixed and movable vanes are provided in any number required, the vanes decreasing in size but increasing in number from the centre outwards. The fluid finally passes into an annular passage 20 connected to the outlet 3.