Cleaning and liquid contact with solids – Processes – Hollow work – internal surface treatment
Patent
1988-12-15
1990-06-19
Pal, Asok
Cleaning and liquid contact with solids
Processes
Hollow work, internal surface treatment
134 2212, 134 2214, 134 2219, 62 77, 62303, B08B 900
Patent
active
049343904
ABSTRACT:
Methods and apparatus for cleaning refrigeration equipment by flushing all refrigerant paths with high pressure refrigerant, following an initial evacuation to prevent air contamination of the refrigerant. Highly effective leak tests may be simultaneously performed. A pump down procedure at the termination of the cleaning process returns all refrigerant to a first tank of the cleaning apparatus, and a contaminant removal procedure removes contaminants from the refrigerant in a second tank.
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Lackey D. R.
Ojan Ourmazd S.
Pal Asok
Thermo King Corporation
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