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Process and device for determining the parameters of the fuel injectors of an internal combustion engine

  • US 5,582,152 A
  • Filed: 06/06/1995
  • Issued: 12/10/1996
  • Est. Priority Date: 06/06/1994
  • Status: Expired due to Term
First Claim
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1. A process for determining a specific parameter of each fuel injector in an injector device of a multi-cylinder diesel engine having pre-injection with electronic control, comprising the steps of:

  • establishing a curve of an instantaneous speed difference (DVi) of a crank shaft of the engine between a combustion top dead center point of a cylinder in question and a subsequent moment which is prior to a combustion top dead center point of a next subsequent cylinder to undergo combustion, the other functioning parameters being kept constant; and

    determining an optimum value of said parameter with reference to an extreme point of said curve.

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