Air flow amplifier
AssigneeVortec Corporation
InventorLeslie R. Inglis
Life of this patent
Estimating the term…
Abstract
An air flow amplifier of relatively high air flow amplification ratios in which a thin film of pressurized primary air flowing in a transverse direction is mechanically deflected to impinge on a generally frusto-conical surface tapering towards the throat of the amplifier. The deflecting action is produced by a deflection ring which is spaced inwardly from the amplifier's annular nozzle. The ring has an internal diameter substantially larger than the amplifier's throat so that secondary air entering through the ring may flow directly towards the frusto-conical surface to mix with the primary air flowing along that surface.
Claims11
A fluid flow amplifier of relatively high amplification ratio, comprising a body having surfaces defining an axial flow passage therethrough;
- said passage including an inlet section, an outlet section, and an intermediate section therebetween;
- the surface of said intermediate section being frusto-conical in shape and terminating at said outlet section in a throat opening of reduced cross section;
- said body also having means defining a constantly open annular nozzle between said inlet and intermediate sections for injecting a thin continuous film of pressurized fluid inwardly into said passage along a transverse plane;
- and a deflector ring disposed within said passage and intersecting said transverse plane;
- said ring having an outer surface spaced inwardly from said nozzle for contacting the film of pressurized fluid discharged transversely inwardly by said nozzle and for deflecting said film axially towards the frusto-conical surface of said intermediate section;
- said ring also having an inner surface adjoining the surface of said inlet section and defining an opening substantially larger than said throat opening.
Dependencies are inferred from the claim text.