Vacuum pump with oil separator
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United States of America Patent
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-
Dec 16, 1997
Grant Date -
N/A
app pub date -
Feb 15, 1996
filing date -
Aug 17, 1993
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The invention relates to a vacuum pump (1) with an oil separator (42) connected downstream of its outlet (33) and with a duct (45, 46) through which the oil separated in the oil separator (42) is returned to the vacuum pump (1); to feed back the oil in a simple manner, the oil feed duct (45, 46) opens into a duct (47) that supplies gas ballast to the pump (1).
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