A Study of Direct Fuel Injection Two-Stroke Engine for High Specific Power Output and High Engine Speed

Paper #:
  • 1999-01-3288

Published:
  • 1999-09-28
Citation:
Morikawa, K., Takimoto, H., and Ogi, T., "A Study of Direct Fuel Injection Two-Stroke Engine for High Specific Power Output and High Engine Speed," SAE Technical Paper 1999-01-3288, 1999, https://doi.org/10.4271/1999-01-3288.
Pages:
10
Abstract:
High specific power output two-stroke engine for snowmobile use was converted to a Direct Fuel Injection (DFI) engine, in order to achieve lower HC emission by avoiding fuel short circuiting and to obtain higher specific power output by increasing induction air and optimizing A/F. High pressure single fluid fuel system was chosen because of extremely high fuel delivery rate. The fuel injector and its location were investigated and optimized for better mixture formation and lower HC emission. 140kW/L level specific power output, maximum engine speed of 9000 rpm, and 1/2 the level of HC emissions were obtained.
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