METHOD AND DEVICE FOR TWO-PHASE GAS-AND-DROPLET JET FORMING Russian patent published in 2005 - IPC

FIELD: spraying equipment, particularly in fire-fighting, agriculture, climatic apparatuses, abrasion surface treatment devices and so on.

SUBSTANCE: method involves accelerating two-phase jet up to reaching velocity thereof equal or more than sound velocity in double-phase jet along with reducing flow pressure to value exceeding pressure in efflux flow by projecting nozzle end out of the jet. This results in creating overpressure, which provides spray angle increase of two-phase jet. Device for gas-and-droplet two-phase jet forming includes nozzle composed of two parts. The first nozzle part, namely end one, is arranged relative the second part so that the first part may be displaced relative jet axis or projected out of the jet.

EFFECT: possibility to form gas-and-droplet jet, particularly including liquid droplets or solid particles in gas flow.

2 cl, 2 dwg