US 2014/0191059 A1 · NOZZLE CAPABLE OF DEVIATING A SYNTHETIC JET IN A DYNAMIC AND CONTROLLABLE MANNER WITH NO MOVING MECHANICAL PARTS AND A CONTROL SYSTEM THEREOF

Abstract

A nozzle is capable of producing a mixing of two primitive fluid jets and a selective and controllable angular deviation of the synthetic jet obtained by mixing the primitive jets without any moving mechanical part. The nozzle is also capable of generating a controllable deviation of the synthetic jet and of changing the direction of this jet in a continuous and dynamic manner so as to allow the jet to sweep a preset and arbitrary angle. The nozzle is constituted, in a first part thereof, by a conduit divided into two channels by a central baffle and, in a second part thereof, by a convergence zone and an outflow mouth whose walls have a curvilinear profile and are connected seamlessly to the walls of the conduit.

Claims15

Dependent claims

A nozzle comprising:

a conduit divided into a first channel in which a first jet of a fluid can flow and into a second channel in which a second jet of a fluid can flow;
a convergence zone for converging the first jet and the second jet one towards another, so as to obtain a synthetic jet;
an exit zone through which the synthetic jet can exit the nozzle;
wherein the exit zone is delimited by a first Coanda surface and by a second Coanda surface, the first Coanda surface being arranged in a position adjacent the first channel and the second Coanda surface being arranged in a position adjacent the second channel, so that the first jet adheres to the first Coanda surface and drags the second jet or, alternatively, the second jet adheres to the second Coanda surface and drags the first jet.

1 more element

Dependencies are inferred from the claim text.

Facts

Application

14/129,712Filed 25 Jun 2012

Priority

IT RE2011A0000491 Jul 2011

Published

10 Jul 2014

Term ends

Not estimatedThe source records don’t support an estimate.

Classification12 codes

B05B 1/005
Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means: nozzles or other outlets specially adapted…
B05B 1/08
Designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape:…
B05B 7/0815
To form intersecting jets: with at least one gas jet intersecting a jet constituted by a liquid or a mixture containing a liquid for controlling…
B05B 12/18
For controlling the spray area: using fluids, e.g. gas streams

Nozzle capable of deviating a synthetic jet in a dynamic and controllable manner with no moving mechanical parts and a control system thereof

Life of this patent

Nozzle capable of deviating a synthetic jet in a dynamic and controllable manner with no moving mechanical parts and a control system thereof

Life of this patent

Abstract

Claims15