Tempering method for a screw-type vacuum pump

Details Tempering method for a screw-type vacuum pump Tempering method for a screw-type vacuum pump

2007-06-19

2007-06-19

Trieu, Theresa (Department: 3748)

Rotary expansible chamber devices

With signal, indicator or transparent inspection means

C418S001000, C418S084000, C418S087000, C418S201100, C417S368000

Reexamination Certificate

active

10495834

ABSTRACT:
A screw-type vacuum pump (1) is tempered such that characteristics of the pump are not substantially altered when the pump is subjected to thermal stress. In order to achieve said aim, cooling is adjusted according to an operating state of the screw-type vacuum pump (1), preferably to maintain a substantially constant pump gap (4).

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