US 12,066,014 B2
Chamber bottom for a plasma thruster
Julien Pierre Alain Vaudolon, Moissy-Cramayel (FR); Dominique Jean Etienne Indersie, Moissy-Cramayel (FR); Laurent Alexandre René Godard, Moissy-Cramayel (FR); Tiphaine De Tinguy, Moissy-Cramayel (FR); Fabrice François Julien Mayeul, Moissy-Cramayel (FR); and Romain Vallat, Moissy-Cramayel (FR)
Assigned to SAFRAN SPACECRAFT PROPULSION, Vernon (FR)
Appl. No. 17/439,097
Filed by SAFRAN AIRCRAFT ENGINES, Paris (FR)
PCT Filed Mar. 11, 2020, PCT No. PCT/FR2020/050501
§ 371(c)(1), (2) Date Sep. 14, 2021,
PCT Pub. No. WO2020/188185, PCT Pub. Date Sep. 24, 2020.
Claims priority of application No. 1902712 (FR), filed on Mar. 15, 2019.
Prior Publication US 2022/0145865 A1, May 12, 2022
Int. Cl. F03H 1/00 (2006.01)
CPC F03H 1/0031 (2013.01) [F03H 1/0075 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A plasma thruster having a chamber bottom, the chamber bottom comprising, in a single piece, a chamber bottom surface for closing an annular chamber formed by the chamber bottom and delimited by at least one insulating part attached to the chamber bottom, and
at least a first set of tabs comprising fastening tabs for fastening by elastic fitting said at least one insulating part to the chamber bottom, wherein the chamber bottom is made of a metallic material, and wherein at least one fastening tab among the fastening tabs extends axially, beyond the chamber bottom surface in a downstream direction, is elastically deformable and has at its distal end a protrusion configured to cooperate with a notch, a groove or a shoulder of the at least one insulating part; and
a second set of tabs.