Piezoelectric oscillated nozzle
First Claim
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1. An arrangement for discharging liquid droplets comprising:
- a housing including a forwardly opening chamber for holding liquid therein having an intake port connected to a liquid supply container;
a vibrating member secured to a forward end of said housing defining a front wall of said chamber in rearwardly pressure transmitting relationship with the liquid in said chamber and having at least one nozzle opening therein;
means for maintaining the static pressure of said liquid in said chamber equal to or lower than the static pressure forwardly of said nozzle opening; and
a piezoelectric transducer secured to said vibrating member for inducing therein a rearward displacement to cause a small quantity of liquid to be discharged forwardly through said nozzle opening.
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Abstract
An arrangement for discharging liquid droplets comprises a housing including a chamber for holding liquid therein having an intake port connected to a liquid supply container, a vibrating member secured to the housing in pressure transmitting relation with the liquid in the chamber. The vibrating member is formed with at least one nozzle opening therein through which the liquid is discharged forwardly of the housing. A piezoelectric transducer is secured to the vibrating member for inducing a rearward displacement therein to discharge a small quantity of liquid through the nozzle opening.
199 Citations
11 Claims
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1. An arrangement for discharging liquid droplets comprising:
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a housing including a forwardly opening chamber for holding liquid therein having an intake port connected to a liquid supply container; a vibrating member secured to a forward end of said housing defining a front wall of said chamber in rearwardly pressure transmitting relationship with the liquid in said chamber and having at least one nozzle opening therein; means for maintaining the static pressure of said liquid in said chamber equal to or lower than the static pressure forwardly of said nozzle opening; and a piezoelectric transducer secured to said vibrating member for inducing therein a rearward displacement to cause a small quantity of liquid to be discharged forwardly through said nozzle opening. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification