CLOSED ELECTRON DRIFT PLASMA ENGINE Russian patent published in 2000 - IPC

FIELD: space engineering; electric jet engine plants; stationary plasma engines and engines with anode layer; application of plasma accelerators. SUBSTANCE: plasma engine includes cathode compensator, magnetic system and anode gas distributor mounted in discharge chamber by means of at least two attachment units; each attachment unit consists of rod located in hole of discharge chamber bottom; one end of this rod is rigidly connected with anode; attachment unit includes also locking member and coupling sleeve with external thread; end face of this sleeve directed towards anode has radial projection and axial inner hole where rod is located at radial; sleeve and rod are connected by means of pin located perpendicularly relative to axis of rod and in one plane with engine axis. Rod may be located in inner axial hole of sleeve in such position that outer clearance between them exceeds inner clearance. At least one flexible member may be mounted between anode and end face of coupling sleeve. At least one flexible member may be mounted between locking member and discharge chamber bottom. Shim washers may be fitted between end face of coupling sleeve and discharge chamber bottom. EFFECT: increased mechanical strength of connection of anode gas distributor with discharge chamber; enhanced compensating properties of attachment unit under action of thermal deformation. 5 cl, 5 dwg