Electric heating – Metal heating – By arc
Patent
1996-08-28
1998-06-30
Paschall, Mark H.
Electric heating
Metal heating
By arc
21912154, 21912159, 219123, 31511131, B23K 1000
Patent
active
057737878
ABSTRACT:
The Plasma-Gun Voltage-Generator (PVG) uses a pulsed plasma-flow to displace magnetic flux, thereby inducing high voltages across multi-turn coils. Typical operating parameters are voltages of 0.5 to 1 MV, pulsetimes in the microsecond regime and output impedances in the few Ohm range. The use of capacitor-bank sources to drive the plasma-gun discharge permits repetitive operation of the PVG at rates of several kHz. The PVG includes 1) a coaxial plasma-gun that serves as a source high speed, electrically-conducting plasma; 2) a source of axial magnetic field; and 3) a multi-turn coil or set of multi-turn coils that will experience an induced voltage when plasma flow displaces magnetic flux from the region interior to the coil(s). The magnetic flux source and the multi-turn coil(s) are placed near the end of the coaxial gun to receive the high speed plasma flow. The coaxial plasma-gun provides an axisymmetric discharge between coaxial electrodes. Interaction of the discharge current with its azimuthal magnetic field accelerates plasma axially downstream (after an initiation phase that may involve an inverse-pinch discharge). Axial plasma flow at speeds of 50-100 km/s is sufficient to displace magnetic flux at the end of the gun. Such displacement past the multi-turn coil induces high voltages between the ends of the coil(s). These voltages can then be used to drive a high impedance load, such as an electron-beam diode.
REFERENCES:
patent: 3435287 (1969-03-01), Jacobson
patent: 3594609 (1971-07-01), Vas
patent: 3714510 (1973-01-01), Hofmann
patent: 4019006 (1977-04-01), Strossner
patent: 4360763 (1982-11-01), Gryzinski
Auton William G.
Paschall Mark H.
The United States of America as represented by the Secretary of
LandOfFree
Plasma-gun voltage generator does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Plasma-gun voltage generator, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Plasma-gun voltage generator will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1862171