Comparison between conventional and two-stages fuel injection systems for naval applications 2001-24-0006
High pressures and pressure gradients appear in the combustion
chamber during the combustion process.
The plunger-barrel assembly described in this paper comes up
with a trick to circumvent this defect: it generates the mechanical
two-stage fuel injection. Due to its special construction, the
plunger-barrel assembly allows a small amount of fuel to flow into
the cylinder just a few milliseconds prior to main injection. The
role of the new fuel injection system is highlighted through the
comparison between research results (computer simulation, injection
bench and engine tests) obtained after investigating conventional
and two-stage fuel injection pumps for naval use.