Patent ID: 7621463

Claim:
A fluid nozzle system comprising: a. a source of pressurized primary fluid flow; b. an external ambient fluid; c. a controlled flow pulse means for converting continuous fluid flow from the pressurized source into controlled, discrete flow pulses, wherein the controlled flow pulse means comprises: i. a mechanically actuated, fluidic switch having multiple exit ducts for the discrete fluid pulses; and ii. the switch is mechanically connected in fluid communication with the source of pressurized fluid; d. a toroidal exhaust generation means for generating toroidal vortices from the external fluid combined with the discrete flow pulses, wherein the toroidal exhaust generation means comprises a toroidal vortex generation device having an axisymmetric orifice nozzle with a lip, connected in fluid communication with the controlled flow pulse device, and wherein the toroidal vortex generation device comprises an ejector, downstream of the controlled flow pulse device and upstream of the axisymmetric orifice nozzle, to use the unsteady fluid forces to pump ambient fluid and thereby increase pulse scale and momentum and dramatically increase scale and jet impact forces of toroidal vortices generated, whereby: i. the toroidal vortices are generated as part of the flow pulses emanating from the orifice nozzle as an exhaust jet in the ambient fluid; and ii. the toroidal vortices propel themselves downstream of the fluid nozzle system and in the ambient fluid at a speed substantially equal to ¼ the velocity of the exhaust jet exiting the orifice nozzle, and iii. the flow pulses and toroidal vortices generated by the fluid nozzle system increase an impact force and a stirring capability of the exhaust jet over that of jets produced by conventional, continuous flow nozzles; and e. wherein the controlled flow pulse device includes an inline plenum connected in fluid communication between the pressurized source and an exit control valve downstream of the plenum, whereby interruption of the flow of the primary fluid by the control valve decreases the flow rate of pressurized primary fluid into the plenum thereby allowing the plenum to be pressurized to a higher pressure before the primary fluid is released through the exit control valve as a fluid pulse.