Uniform droplet generator

Details Uniform droplet generator Uniform droplet generator

1994-01-19

1995-02-28

Kashnikow, Andres

Fluid sprinkling, spraying, and diffusing

With means to vibrate or jiggle discharge

By electric transducer

261DIG48, B05B 102

Patent

active

053929888

ABSTRACT:
The uniform droplet injector assembly is a rigid, low mass injector having a plurality of nozzles therein attached to a manifold. The manifold vibrates by piezoelectric actuators and springs in combination. The droplet injector array allows the process stream to flow through the injector assembly with the droplets uniformly dispersed into this stream. The moving parts such as the injector assembly, springs, and actuators are structurally resonant at a frequency near the droplet formation frequency. The colinear, spring/actuator configuration minimizes internal stresses due to manufacturing tolerances, preloading requirements, temperature changes, and cyclic operation in a large area generator. The linear spring/actuator configuration has low stiffness in the vibration direction and high stiffness in transverse direction to eliminate motions which would cause nonuniformly sized droplets.

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