Micro-electromechanical fluid ejection mechanism having a shape memory alloy actuator
First Claim
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1. A micro-electromechanical fluid ejection mechanism comprising:
- a substrate defining an ink passage in fluid communication with a tapered ink chamber having an ink ejection port; and
a shape memory alloy (SMA) actuator arranged within the chamber, the actuator configured to straighten when heated and to return to a bent state upon subsequent cooling to facilitate ejection of ink via the ejection port.
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Abstract
Provided is a micro-electromechanical fluid ejection mechanism. The mechanism includes a substrate defining an ink passage in fluid communication with a tapered ink chamber having an ink ejection port, as well as a shape memory alloy (SMA) actuator arranged within the chamber. The actuator is configured to straighten when heated and to return to a bent state upon subsequent cooling to facilitate ejection of ink via the ejection port.
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Citations
7 Claims
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1. A micro-electromechanical fluid ejection mechanism comprising:
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a substrate defining an ink passage in fluid communication with a tapered ink chamber having an ink ejection port; and a shape memory alloy (SMA) actuator arranged within the chamber, the actuator configured to straighten when heated and to return to a bent state upon subsequent cooling to facilitate ejection of ink via the ejection port. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification