Oil-free rotary compressor with injected water and dissolved borate
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United States of America Patent
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Nov 6, 1990
Grant Date -
N/A
app pub date -
Feb 17, 1989
filing date -
Feb 23, 1988
priority date (Note) -
Expired
status (Latency Note)
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Abstract
In order to produce oil-free compressed air with a rotary compressor while avoiding the costs involved by a liquid-free compressor, a rotary compressor, especially a single screw rotary compressor is injected with water in which borate, preferably potassium borate is dissolved. This prevents corrosion at no additional cost while improving the bacterial purity of the air produced.
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