Anti-wetting trench of nozzle plate for piezoelectric actuating dispenser

We have developed a high flow rate stable liquid dispensing system by using a low energy consumption actuator. It is made of a piezoelectric (PZT) actuating porous membrane with the resonant frequency of the system, featuring relatively small movement parts with a robust structure. Taking advantage of the high latent heat during phase changes from water droplet to vapor, we were able to remove heat from a hot body surface of over 100W with the dispensing system as cooling application.