Starting aid for vehicle diesel engine - performs plasma ignition of condensed fuel film on insert surface near fuel jet

摘要

The starting aid has a flat surface (30) parallel to the fuel injection stream and coated with the outer section of the spray during starting. The plasma electrode (34) is positioned close to the film and has a second electrode formed either by the evaporated film or by an insert electrode. The plasma discharge evaporates- and ignites the fuel film. The plasma discharge uses a lower energy to feed than conventional systems with a frequency of at least 1 KHz and a bias of at least 25 KV. The second electrode can be a ring electrode around the central electrode, with the discharge electrode incorporated into the evaporating wall. When the engine is hot no more evaporation takes place. ADVANTAGE - Simple starting aid, low power use.