Rotary vacuum pump with a discharge compensating channel
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United States of America Patent
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Apr 28, 2015
Grant Date -
Sep 26, 2013
app pub date -
May 23, 2013
filing date -
Jul 7, 2005
priority date (Note) -
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Abstract
A rotary vacuum pump includes a suction chamber (12) in a housing (10). A rotor (14) is eccentrically mounted in the suction chamber (12). Sliding vanes (18) are connected to the rotor (14). Further, a discharge channel (30) is connected to the suction chamber (12) and to an oil chamber (32). A valve (38) is disposed between the discharge channel (30) and the oil chamber (32) in order to prevent the medium from flowing back from the oil chamber (32) into the suction chamber (12). At least one compensating channel (50) is connected to the discharge channel (30) and to the oil chamber (32).
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