Vane gas compressor having two discharge passages with the same length
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United States of America Patent
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Mar 29, 2005
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N/A
app pub date -
Sep 6, 1996
filing date -
Sep 6, 1996
priority date (Note) -
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Abstract
A gas compressor has a cylinder chamber provided with discharge holes. Openings are in communication with the discharge holes, respectively. Discharge passages having the same length are connected with the openings, respectively. The ends of the discharge passages are connected with a common passage. During operation of the cylinder chamber, discharge valves cause the expelled gas to produce pulsations on the upstream side of the two openings. The pulsations are shifted in phase by a half wavelength. Noise due to the pulsations is reduced, because the pulsations of the expelled gas cancel out each other when the gas flows through the common passage.
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