Cooled screw-type vacuum pump
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United States of America Patent
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Jun 6, 2006
Issued Date -
N/A
app pub date -
Oct 30, 2002
filing date -
Nov 15, 2001
priority date (Note) -
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Abstract
A screw-type vacuum pump (1) includes a pump housing (2, 6) with rotors (3, 4). A liquid cooling system cools the rotors and a drive motor (9). In order to improve the cooling of said pump, an external air-flow impelled cooling system is also provided for the pump housing (2, 6).
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