Airbus Defence and Space Gmbh

Arianegroup Gmbh

Bernd Pfeiffer

Joël Deck

Reiner Teuchner

A gas inlet (), in particular for use in an ion thruster, comprises a housing () which is made of a gas-tight ceramics material and which is provided with a first gas feed channel () and a second gas feed channel () arranged downstream of the first gas feed channel (). The gas inlet () further comprises an insert () which is arranged in the second gas feed channel () and is made of a porous ceramics material, wherein the geometry and pore structure of the insert () are such that the insert () forms a desired flow resistance for a gas stream flowing through the second gas feed channel () which is greater than a flow resistance acting on a gas stream flowing through the first gas feed channel (), and wherein a ratio of a length () of the first gas feed channel () to a length () of the insert () is at least 1:2.

Gas inlet for an ion thruster

A gas inlet suitable in particular for use in an ion thruster includes a housing which is made of a gas-tight ceramics material, and an insert which is arranged in the housing and is made of a porous ceramics material. The geometry and pore structure of the insert are such that the insert forms a desired flow resistance for a gas stream flowing through the insert.

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Moeckmuehl, Germany

Bernd Pfeiffer