Micronozzle atomizers and methods of manufacture and use

A micronozzle device for delivering a plurality of fluids, comprising:

• at least one layer comprising a plurality of nozzle exits delivering a mixture comprising a first fluid and a second fluid;
• at least one first-fluid header layer having a plurality of first microchannels receiving the first fluid;
• at least one first-fluid via layer adjacent the at least one first-fluid header layer to receive the first fluid and direct the first fluid to the plurality of nozzle exits;
• at least one second-fluid header layer having a plurality of second microchannels receiving the second fluid;
• at least one second-fluid via layer adjacent the at least one second-fluid header layer to receive the second fluid and direct the second fluid to the plurality of nozzle exits;
• a plurality of curtain-gas nozzles including a plurality of first curtain-gas nozzles located at a first side of the at least one layer comprising the plurality of nozzle exits and a plurality of second curtain-gas nozzles located at a second side of the at least one layer comprising the plurality of nozzle exits, the plurality of first and second curtain-gas nozzles being sized to deliver air therethrough to define boundary layers that restrict the flow of the mixture of the first and second fluids after exiting the plurality of nozzle exits;
• and
• wherein, the micronozzle device comprises an alternating arrangement in which the plurality of nozzle exits are positioned between the plurality of first curtain-gas nozzles and the plurality of second-curtain gas layers.