Patent ID: 6699009
Filing Date: 2004-03-02
Classification: F04D,F05D

Abstract:
A vacuum pump, comprising a housing having a suction opening in a high-vacuum region thereof, a gas outlet opening in a high pressure region thereof, and an intermediate chamber adjoining the gas outlet opening; pump-active cooperating rotor and stator components arranged in the housing for pumping gases from the suction opening to the outlet opening, with an end of the pump-active components adjoining the high pressure region being connected with the gas outlet opening via the intermediate chamber; heating means provided in the intermediate chamber and connected with stator components, which are located in the high pressure region, by a connection having a high thermal conductibility; thermal resistance means for separating the heating means from the housing; and thermal resistance means for thermally separating the stator components, which are located in the high pressure region, from stator components located in the high-vacuum region.