F - Mech Eng,Light,Heat,Weapons – 04 – C
Patent
F - Mech Eng,Light,Heat,Weapons
04
C
F04C 18/16 (2006.01) F04C 18/08 (2006.01) F04C 23/00 (2006.01) F04C 29/04 (2006.01)
Patent
CA 2463957
The invention relates to a method for tempering a screw-type vacuum pump (1) wherein the characteristics of the pump are not substantially altered when the pump is subjected to thermal stress. In order to achieve said aim, the cooling is adjusted according to the operating state of the screw-type vacuum pump (1), preferably according to a substantially constant pump gap (4).
L'invention concerne un procédé de maintien à la température voulue d'une pompe à vide à vis (1). Selon l'invention, pour que les caractéristiques de la pompe susmentionnés ne soient pas sensiblement modifiées lors de contraintes thermiques, il est proposé que le refroidissement soit régulé en fonction de l'état de fonctionnement de la pompe à vide à vis (1), de préférence pour que l'espace entre les rotors et le corps de la pompe (4) reste sensiblement constant.
Behling Manfred
Kriehn Hartmut
Rofall Klaus
Fetherstonhaugh & Co.
Leybold Vakuum Gmbh
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