VACUUM PUMP, SCROLL PUMP AND METHOD OF MANUFACTURING SAME AND CHECK VALVE

• Main Authors: Becker, Jonas, Söhngen, Wolfgang, Willig, Michael, Bernhardt, Gernot, Kallenborn, Stefan, Schaefer, Heiko, Pauli, Lars, Hofmann, Jan, Wangorsch, Verena, Harapat, Erhard
• Format: Patent
• Language: English; French; German
• Published: 29.06.2022
• Subjects: BLASTING; ENGINE PLANTS IN GENERAL; HEATING; LIGHTING; MACHINES OR ENGINES IN GENERAL; MECHANICAL ENGINEERING; NON-POSITIVE DISPLACEMENT PUMPS; POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS; ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENTMACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENTPUMPS; STEAM ENGINES; WEAPONS

Die Erfindung betrifft eine Scrollpumpe umfassend ein bewegliches, zum Erzeugen einer Pumpwirkung exzentrisch erregbares Spiralbauteil, wobei das Spiralbauteil eine Grundplatte und eine sich ausgehend von der Grundplatte erstreckende Spiralwand aufweist, wobei außen an der Grundplatte wenigstens zwei über den Umfang der Grundplatte beabstandete Haltevorsprünge derart vorgesehen sind, dass während der Herstellung der Scrollpumpe die Backen eines Backenfutters an den Haltevorsprüngen angreifen können, um das Spiralbauteil einzuspannen. A vacuum pump includes a fan including a rotational speed to be controlled to cool the vacuum pump, a temperature sensor, and a control device that regulates the rotational speed of the fan in dependence on a power consumption of a drive of the vacuum pump and on a temperature measured by the temperature sensor. Another vacuum pump includes an electrically driven fan, an air guide hood, and a conductor that leads from the fan to a supply connection for the fan. The conductor is connected to the supply connection via an electrical connector. The connector is separated from an air flow path, defined by the air guide hood, by a partition wall.