Flowserve Management Company

Daniel Kuehlein

Heiner Koesters

Joerg Temming

Soenke Siebels

A target volume evacuation system includes a turbo compressor and a vacuum pump, the system being operable in a first configuration to reduce the target volume pressure from ambient to a first intermediate pressure, e.g. between 200 mbar and 50 mbar, and in a second configuration to further reduce the pressure from a second intermediate pressure, e.g. 10 mBar, to a target partial vacuum, e.g. between 0.1 and 1 mbar. The turbo compressor can be driven electrically or by fuel combustion, and can be a conventional or modified turbojet engine. A plurality of turbo compressors can be transitioned from parallel to series operation. The pressure can be reduced from the first to the second intermediate pressure by venting the target volume to a boom-tank volume and/or by configuring the turbo compressor system to provide backing to the vacuum pumping system. The invention is applicable to a hyperloop transport system.

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Ellerau, Germany

Daniel Kuehlein