EP 0914560 B1 20050824 - Ion thruster with a DEVICE FOR CONCENTRATING ION BEAMS
Title (en)
Ion thruster with a DEVICE FOR CONCENTRATING ION BEAMS
Title (de)
PLASMATRIEBWERK mit einer IONENSTRAHLFOKUSIERUNGSVORRICHTUNG
Title (fr)
PROPULSEUR A PLASMA avec DISPOSITIF DE CONCENTRATION DE FAISCEAU D'IONS
Publication
Application
Priority
FR 9700906 W 19970523
Abstract (en)
[origin: WO9853201A1] The invention concerns a device for concentrating ion beams for a hydromagnetic propulsion means with closed electron drift comprising: a) a flared magnetic polar part (63) substantially truncated, open at its two ends and designed to be located downstream of the hydromagnetic propulsion means output plane, comprising a ring-shaped ionisation and acceleration channel (1) and peripheral (3) and central (4) polar parts arranged on either side of the ring-shaped channel (1) to generate a substantially radial magnetic field in an output plane perpendicular to the ring-shaped channel (1) axis; and b) a supplementary peripheral magnetic circuit (60) connecting the flared magnetic polar part (63) downstream end with the peripheral polar part (3), the flared magnetic polar part (63) co-operating with the supplementary peripheral magnetic circuit (60) and the peripheral (3) and central (4) polar parts to define the shape of the magnetic field downstream of the ring-shaped channel (1) so as to force the ion beams emitted by the ring-shaped channel (1) to remain inside a substantially conical zone whereof the predetermined top angle is defined by the flared magnetic polar part (63) top angle.
IPC 1-7
IPC 8 full level
CPC (source: EP US)
F03H 1/0075 (2013.01 - EP US); H01J 27/143 (2013.01 - EP US); H05H 1/54 (2013.01 - EP US)
Citation (examination)
Artsimovich L.A. et al: 'Development of a steady plasma engine (SPE) and its use on a 'Meteor' artificial satellite', Kosmicheske Issledovaniya (USSR), vol. 12(3) May-June 1974, pages 451-468; cité dans la demande
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
WO 9853201 A1 19981126; CN 1209036 A 19990224; DE 69734062 D1 20050929; DE 69734062 T2 20060614; EP 0914560 A1 19990512; EP 0914560 B1 20050824; JP 2001506337 A 20010515; US 6158209 A 20001212
DOCDB simple family (application)
FR 9700906 W 19970523; CN 98108949 A 19980522; DE 69734062 T 19970523; EP 97925125 A 19970523; JP 51014998 A 19970523; US 23021999 A 19990121