(57) The invention relates to space technology and can be used in electric jet engines,
as well as in vacuum-plasma apparatus. Proposed is a stationary ion/plasma engine
comprising a magnetically conductive housing having mounted therein a discharge chamber
with an annular ionization and acceleration channel, said chamber having an outer
annular surface and an inner annular surface and being made of an electrically insulating
material, the chamber having an open outlet on one side, and being coupled by its
opposing, bottom side, to the magnetically conductive engine housing via a fastening
means in the form of an annular metal cage; mounted inside the discharge chamber is
a hollow annular gas distributing anode in communication with a reservoir of gaseous
working fluid, and a cathode fastened to the magnetically conductive housing, the
engine further having a magnetic system consisting of coils with magnetically conductive
cores, and the magnetically conductive housing, wherein the outer and inner annular
surfaces of the discharge chamber are described by wave-shaped generating lines which
give rise to concentric grooves on the annular surfaces of the discharge chamber;
the means for fastening the discharge chamber to the magnetically conductive engine
housing is configured in the form of an annular metal cage with wave-shaped walls,
which have a profile analogous to the profile of a wave-shaped generating line of
the discharge chamber, and is fastened to the magnetically conductive housing with
the aid of fastening elements, the wave-shaped walls of the cage surrounding the outer
and inner annular surfaces of the discharge chamber; cut into the wave-shaped walls
of the cage are slots that divide the walls into individual wave-shaped petals, wherein
the wave-shaped petals of the cage contact with the cylindrical magnetically conductive
housing and are pressed by the latter to the discharge chamber within the limits of
elastic deformation of the petals. The proposed solution simplifies assembly of the
ion/plasma engine, allowing automatic positioning of the discharge chamber in relation
to the engine axis, while also protecting the discharge chamber against the effects
of temperature deformation of the structural elements of the engine.
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