Method and devices for sonicating liquids with low-frequency high energy ultrasound

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United States of America Patent

PATENT NO 9011698
APP PUB NO 20080251375A1
SERIAL NO

12063679

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Abstract

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A method and devices comprise a low frequency high energy ultrasound system having at least one sonotrode projecting into a reactor vessel through which the liquid passes via at least one inlet orifice and at least one outlet orifice. To avoid cavitation at the sonotrode, in a close region of the oscillation-transducing sonotrode surface a pressure/amplitude combination close to or above the pressure-amplitude characteristic line is generated at which considerably reduced or no cavitation occurs and in the adjacent region in the vessel at least in a region and at least at times a pressure/amplitude combination is maintained below the pressure-amplitude characteristic line at which cavitation is generated. A device has an inlet orifice arranged such that the liquid impacts directly onto the oscillation-transducing sonotrode surface, and is shaped that in the close region of the oscillation-transducing sonotrode surface a pressure close to or above the pressure-amplitude characteristic line prevails.

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Patent Owner(s)

Patent OwnerAddress
DR HIELSCHER GMBH14513 TELTOW

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hielscher, Harald Stahnsdorf, DE 29 138
Hielscher, Holger Teltow, DE 24 70
Hielscher, Thomas Stahnsdorf, DE 25 69

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