本发明涉及一种真空泵，在具有泵入口（10），泵出口（14）特别是涡轮分子泵和泵入口（10）和用于气体布置在所述泵室（18）的泵出口（14）之间的将被泵送，以及与至少一个 冷却气体入口（48），用于将冷却气体用于冷却真空泵和与一个或多个与气体传导的方式冷却气体入口（48），并且泵室的外部（18）布置成用于所述冷却气体，所述或每个中空区域中空区域（50，52，54）（ 50,52,54）受到真空泵的至少一个部件（22,58,74）的限制。

The invention relates to a vacuum pump, in particular turbo-molecular pump having a pump inlet (10), a pump outlet (14) and a between the pump inlet (10) and the pump outlet (14) arranged in the pump chamber (18) for a Gas to be pumped, as well as with at least one cooling gas inlet (48) arranged for a cooling gas for cooling the vacuum pump and with one or more with the cooling gas inlet (48) in a gas conducting manner, and outside of the pump space (18) hollow portions (50, 52, 54) for the cooling gas, the or each hollow region ( 50, 52, 54) 74) of the vacuum pump is limited by at least one component (22, 58,.