Article | REF: BM2576 V1

Automobile Diesel engines - Optimization

Author: Jean-Pierre POUILLE

Publication date: April 10, 2008

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1. Experimental development of IDI diesel engines

1.1 Pre-definition of injection system on electric test bench

Nota

See also J.L. Froment's article [BM 2 585] Diesel engines: injection and combustion chamber (ref. [6]).

The aim is to select the injection pump and injectors that will :

  • inject the required flow at full load for an injection time that must not be excessive (do not exceed 35 to 40 crankshaft degrees), otherwise there is a risk of reduced efficiency and increased smoke;

  • inject for as long as possible at idle to reduce noise;

  • optimize the rate of introduction (the rate of introduction is the instantaneous flow rate injected, in cm...

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Experimental development of IDI diesel engines