Cooled screw-type vacuum pump

Details Cooled screw-type vacuum pump Cooled screw-type vacuum pump

2006-06-06

2006-06-06

Trieu, Theresa (Department: 3748)

Rotary expansible chamber devices

Heat exchange or non-working fluid lubricating or sealing

With heat exchange means for non-working fluid

C418S088000, C418S097000, C418S201100

Reexamination Certificate

active

07056108

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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