Air supply system with reduced oil passing in compressor
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United States of America Patent
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Issued Date -
Feb 28, 2008
app pub date -
Aug 25, 2006
filing date -
Aug 25, 2006
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
An air supply system includes a compressor having a compression chamber, an inlet port through which air flows into the compression chamber and an outlet port through which air exits the compression chamber, an unloader which causes the compressor to be in an unloaded state when a desired system air pressure is maintained, an isolation valve preventing inlet air from flowing into the inlet port of the compressor when the compressor is in the unloaded state, and a source of pressurized air supplying pressurized air to the inlet port of the compressor at least when the isolation valve prevents inlet air from flowing into the inlet port of the compressor.
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