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dc.creatorFaidley, R.W.en
dc.creatorDarden, M.H.en
dc.creatorWeldon, W.F.en
dc.date.accessioned2015-09-04T16:07:02Zen
dc.date.available2015-09-04T16:07:02Zen
dc.date.issued1995-01en
dc.identifierPR_172en
dc.identifier.citationR.W. Faidley, M.H. Darden, and W.F. Weldon, “The railplug: a new ignitor for internal combustion engines,” 6th EML Symposium, Austin, Texas, U.S.A., April 28-30, 1992.en
dc.identifier.urihttp://hdl.handle.net/2152/30893en
dc.description.abstractA miniaturized railgun, termed the >railplug,> has been developed for use as an ignitor of combustible mixtures in engines. The device drives a plasma armature in a multishot mode with the aim of creating a line-source for ignition rather than the point source provided by traditional spark plugs. Railplugs have been fabricated in both parallel rail and co-axial rail geometries. The railplug differs from most plasma armature railguns in two striking ways: (1) no fuse or pellet is used to initially establish the plasma (the armature is simply the arc created by a high-voltage pulse), and (2) it operates over a range of elevated pressures (up to 500 psi). Consequently, the railplug power supply must provide a high voltage spike to breakdown the gap between the rails followed by a sustaining voltage that supplies current to drive the arc down the rails. Conceptually, this is the equivalent of combining the electrostatic problem of a sparkplug with the electrodynamic one of a railgun. Two power supply options that do this are outlined, as well as details of railplug geometries. Successes to date have demonstrated the firing of plugs for over 10{sup 4} shots at delivered arc energies of 1 J per shot. Rep rates have been demonstrated up to 50 Hz.en
dc.language.isoenen
dc.publisherUSDOEen
dc.relation.ispartofCEM Publicationsen
dc.subjectEM Launchen
dc.subjectmini railgunen
dc.subjectrailplugen
dc.subjectignitionen
dc.subjectem gunen
dc.titleThe Railplug: A New Ignitor for Internal Combustion Enginesen
dc.typetechnical reporten
dc.description.departmentCenter for Electromechanicsen
dc.rights.restrictionopenen


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