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US 7,157,058 B2Granted
High power ultrasonic reactor for sonochemical applications
AssigneeNano-Size Ltd.
InventorsEvgeny Marhasin, Marina Grintzova, Vicktor Pekker, Yuri Melnik
Life of this patent
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Abstract
Ultrasound device having a reaction chamber, which includes a magnetostrictive transducer and a horn transmitting ultrasound radiation substantially uniformly throughout the reaction chamber. The horn is hollow and is constituted by a cylinder having an empty inner chamber at its core defining a resonance chamber, which may be cylindrical and may comprise a plurality of sections of cylindrical shape or a central section of larger diameter and two terminal sections of smaller diameter.
Claims11
Sonochemical reactor comprising:
- a. a reactor volume confined by external walls with internal dimensions establishing resonance of ultrasonic waves in a liquid contained within the reactor volume;
- b. a high power ultrasonic transducer;
- c. a horn, of a longitudinal length directly proportional to whole number of half-wavelengths of ultrasonic waves in the horn material, attached to the transducer and outwardly emitting ultrasonic energy into the reactor volume;
- and
- d. an internal cavity of said horn characterized by resonant properties and providing, in accordance with Poisson's effect, an efficient transformation of longitudinal ultrasonic oscillations received from the transducer into transversal ultrasonic oscillations of the external walls of the horn in such a way that the distribution of ultrasonic energy throughout the reactor volume is homogeneous.
2 more elements
Dependencies are inferred from the claim text.