Valve system allows high performance vapor explosions

Edit Hook

μMist® Platform Technology is based on the defensive spray mechanism of the bombardier beetle, allowing for high performance vapour ejections. This spray technology has a controlled valve system allowing for fine-tuned control of droplet size, temperature, and velocity in systems using mist as a delivery method.

Key Differentiators

The controlled nature of μMist® technology holds potential for significant reduction in carbon emissions and other harmful engine emissions. If used for automotive fuel injection purposes, improved fuel burning efficiency can be attained via smaller fuel droplets and a lower-pressure injector, which can also result in cost and resource savings.  μMist® technology has similar potential in other diverse spray system applications, including the aviation, medical, fire control and consumer industries.

Biomimicry Story

The bombardier beetle is known for its ability to spray a high-pressure jet of a boiling irritant to fend off predators. This rapid-fire process is called pulse combustion, a term typically associated with jet engines, furnaces, and paint sprayers. Tom Eisner of Cornell University demonstrated that the beetle accomplishes this feat by combining hydrogen peroxide, hydroquinone and two catalysts in a tiny combustion chamber in its abdomen. The resulting chemical reaction produces a 100° C (212 °F) jet of benzoquinone and steam. Once a critical pressure is reached, the chamber's exit valve opens and boiling toxic liquid and steam blasts in the direction of the danger.   Scientist Andrew McIntosh and a team at the University of Leeds are working to mimic the unique release valve that gives the beetle amazing efficiency in liquid expulsion. The research team is studying the design principles behind the beetle's heart-shaped combustion chamber and nozzle ejection mechanism. An exclusive licensing agreement for development and commercialization of µMist® technology has been signed with Swedish Biomimetics 3000® Ltd.

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