Internal mix air atomizing nozzle assembly

Details Internal mix air atomizing nozzle assembly Internal mix air atomizing nozzle assembly

2006-09-19

2006-09-19

Nguyen, Dinh Q. (Department: 3752)

Fluid sprinkling, spraying, and diffusing

Combining of separately supplied fluids

Serially arranged mixing zones

C239S416500, C239S417300, C239S424000, C239S432000

Reexamination Certificate

active

07108203

ABSTRACT:
An internal mix spray nozzle assembly adapted for operation with lesser pressurized air requirements. The spray nozzle assembly includes a liquid passage for directing a liquid flow stream against an impingement pin, and an air guide is provided for forming an annular pressurized air passage about the liquid flow stream for striking and atomizing a laterally spreading dispersion of liquid from the impingement surface. For enhancing liquid atomization, the air guide defines a relatively narrow width air flow opening for substantially accelerating and increasing the pressure of the atomizing air stream, and the impingement pin is formed with a relatively large primary impinging surface and a parallel downstream secondary impingement surface that facilitates further liquid particle breakdown and prevents the accumulation of liquids about the bottom of the impingement pin.

REFERENCES:
patent: 4828181 (1989-05-01), Singels-Craenen
patent: 4890793 (1990-01-01), Fuglistaller et al.
patent: 4982716 (1991-01-01), Takeda et al.

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