Ultrasonic cleaning of interior surfaces

Details Ultrasonic cleaning of interior surfaces Ultrasonic cleaning of interior surfaces

1991-12-27

1994-03-01

Stinson, Frankie L.

Cleaning and liquid contact with solids

Apparatus

For work having hollows or passages

134184, 134166C, 134169C, B08B 310

Patent

active

052898385

ABSTRACT:
An ultrasonic cleaning apparatus for cleaning the interior surfaces of tubes. The apparatus includes an ultrasonic generator and reflector each coupled to opposing ends of the open-ended, fluid-filled tube. Fluid-tight couplings seal the reflector and generator to the tube, preventing leakage of fluid from the interior of the tube. The reflector and generator are operatively connected to actuators, whereby the distance between them can be varied. When the distance is changed, the frequency of the sound waves is simultaneously adjusted to maintain the resonant frequency of the tube so that a standing wave is formed in the tube, the nodes of which are moved axially to cause cavitation along the length of the tube. Cavitation maximizes mechanical disruption and agitation of the fluid, dislodging foreign material from the interior surface.

REFERENCES:
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patent: 4806277 (1989-02-01), Sakurai et al.
patent: 4966177 (1990-10-01), John, Jr. et al.
patent: 4974617 (1990-12-01), Simon

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