Acoustic streaming fluid ejector
First Claim
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1. An acoustic streaming fluid ejector, comprising:
- a fluid filled chamber having an opening;
a selectively vibrating flow generator having a sharp edge pointed toward the opening; and
a driving device configured to vibrate one of the flow generator and the chamber to create a streaming fluid flow in a direction away from the sharp edge through the opening.
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Abstract
An acoustic streaming fluid ejector includes a fluid filled chamber having an opening, a selectively vibrating flow generator having a sharp edge pointed toward the opening, and a driving device configured to vibrate one of the flow generator and the chamber to create a streaming fluid flow in a direction away from the sharp edge through the opening. Methods are also disclosed.
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Citations
20 Claims
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1. An acoustic streaming fluid ejector, comprising:
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a fluid filled chamber having an opening; a selectively vibrating flow generator having a sharp edge pointed toward the opening; and a driving device configured to vibrate one of the flow generator and the chamber to create a streaming fluid flow in a direction away from the sharp edge through the opening. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An acoustic streaming fluid ejector, comprising:
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a fluid reservoir; a fluid filled chamber in communication with the reservoir, the chamber having an opening; a selectively vibrating flow generator having a sharp edge; and a driving device configured to vibrate one of the flow generator and the chamber to create a streaming fluid flow in a direction away from the sharp edge in the chamber. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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18. A method comprising:
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providing a flow generator in a fluid-filled chamber having an opening, the flow generator having a sharp edge defined by two nonparallel surfaces forming an angle, the nonparallel surfaces being symmetrically disposed about an axis aligned with an axis through the opening; and selectively vibrating the flow generator with a driving device to vibrate the sharp edge of the flow generator to eject a fluid droplet from the chamber and out of the opening. - View Dependent Claims (19, 20)
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Specification