Oil-injected screw air compressor
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United States of America Patent
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Jun 23, 2017
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Oct 28, 2016
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An oil-injected screw air compressor includes a first stage compression chamber, an air buffering chamber, a second stage compression chamber, an oil cooler, a plurality of sensors, and a controller. The air buffering chamber is coupled to the first stage compression chamber. The second stare compression chamber is coupled to the air buffering chamber. The oil cooler cools the lubricating oil for the first stage compression chamber, the air buffering chamber and the second stage compression chamber. The sensors are respectively located at outlets of the first stage compression chamber, the air buffering chamber and the second stage compression chamber. The controller respectively and dynamically controls flow rates of the lubricating oil entering into the first stare compression chamber, the air buffering chamber and the second stage compression chamber according to temperature and pressure data measured by the sensors.
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