Multi-orifice nozzle for droplet atomization

A liquid dispensing apparatus for droplet atomization comprising:

• a dispensing body having a receiving end and a dispensing end, the dispensing body including a liquid duct and a gas duct defined in the dispensing body;
• a head positioned proximate the dispensing end of the dispensing body, the head having a plurality of liquid supply channels and a plurality of liquid supply channel exit openings such that liquid travelling from the liquid duct toward the plurality of liquid supply channel exit openings passes through the plurality of liquid supply channels;
• a pressure cap positioned proximate the dispensing end of the dispensing body and exterior the head relative to the dispensing body, the pressure cap defining a pressure chamber, the pressure chamber being in fluid communication with the gas duct;
• a plurality of pressure chamber exit orifices defined in the pressure cap and aligned with the plurality of liquid supply channel exit openings such that gas passing from the gas duct toward the plurality of pressure chamber exit orifices travels past the plurality of liquid supply channel exit openings;
• and
• an alignment spacer on the head, the alignment spacer operable to interface with the pressure cap such that each of the plurality of pressure chamber exit orifices is aligned with a corresponding liquid supply channel exit opening of the plurality of liquid supply channel exit openings,
• wherein the alignment spacer axially spaces each of the plurality of pressure chamber exit orifices from the corresponding liquid supply channel exit opening of the plurality of liquid supply channel exit openings.