MHD GENERATOR WORKING MEDIUM SOURCE Russian patent published in 1999 - IPC

FIELD: plasma generators; intermittently running MHD generators for deep sounding of EarthТs crust. SUBSTANCE: working medium source has case with front and rear end plates, supersonic nozzle, and ignition system with igniter and flame initiating means in front end plate; the latter is attached to case by means of detachable joint. Newly introduced in source is incombustible container closed on one end with packing cone and on other, with bottom; container accommodates charge and is arranged in case so that its bottom faces front end plate. Inner surface of packing cone carries ablative-material collar. Igniter is installed on container bottom; front end shield is joined with case by means of rack-and-pinion lock and, in addition, it is secured to case through hinge joint. Front end plate has projections engaging mating ones of rack-and-pinion ring; case has threaded portion for connection to rack-and-pinion ring. Cooling ducts are provided in case, rear end plate, and supersonic nozzle. EFFECT: reduced start-up period and improved service life. 2 cl, 6 dwg