Title:
CLEANING EQUIPMENT AND CLEANING METHOD
Document Type and Number:
WIPO Patent Application WO/2010/103782
Kind Code:
A1
Abstract:
A cleaning method which comprises immersing an object to be cleaned in a cleaning fluid reserved in a cleaning tank. In a heating step (S2), the cleaning fluid is heated to a pressure reduction/restoration pulse initiation temperature. In a pressure reduction/restoration pulse step (S3), the inside of the cleaning tank is kept under pressure-reducing operation conditions until the temperature of the cleaning fluid reaches a pressure reduction /restoration pulse termination temperature, whereby the cleaning fluid is kept in a boiling state. Every time a prescribed temperature drop of the cleaning fluid occurs during the step (S3), the pressure in the cleaning tank gets restored in an instant, whereby the boiling of the cleaning fluid is interrupted temporarily. At this pressure-restoring step, the steam bubbles which have been generated by boiling in the cleaning fluid condense in an instant. The cleaning fluid is stirred and moved by the pressure waves and pressure difference created by the condensation, whereby the object can be cleaned.
Inventors:
FUJII SHINJI (JP)
Application Number:
PCT/JP2010/001595
Publication Date:
September 16, 2010
Filing Date:
March 08, 2010
Export Citation:
Assignee:
MIURA KOGYO KK (JP)
FUJII SHINJI (JP)
FUJII SHINJI (JP)
International Classes:
B08B3/10; A61B19/00; B08B3/12
Foreign References:
| JPH1010509A | 1998-01-16 | |||
| JPH05169039A | 1993-07-09 | |||
| JPH0286878A | 1990-03-27 |
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