Patents by Inventor Didier Waszak

Didier Waszak has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method for diagnosing a drift in at least one injector of a common-rail fuel injection system
    Patent number: 9366212
    Abstract: A method of diagnosis of a drift of at least one injector of an injection system with a common ramp, which includes a pressure regulating control unit and a richness regulating control unit, the pressure and richness regulating control units being driven by an electronic computer according to values of pressure setpoint and of richness setpoint which are recorded in the computer, the method of diagnosis including checking for existence of a drift of the pressure regulating control and checking for existence of a drift of the richness regulating control when the two units operate in closed loop, the drift of the injector being established upon the joint detection of a drift of the pressure regulating control unit and of a drift of the richness regulating control unit.
    Type: Grant
    Filed: November 9, 2012
    Date of Patent: June 14, 2016
    Assignee: RENAULT s.a.s.
    Inventors: Franck Breuille-Martin, Sylvain Hourlier, Didier Waszak
  • METHOD FOR DIAGNOSING A DRIFT IN AT LEAST ONE INJECTOR OF A COMMON-RAIL FUEL INJECTION SYSTEM
    Publication number: 20140360470
    Abstract: A method of diagnosis of a drift of at least one injector of an injection system with a common ramp, which includes a pressure regulating control unit and a richness regulating control unit, the pressure and richness regulating control units being driven by an electronic computer according to values of pressure setpoint and of richness setpoint which are recorded in the computer, the method of diagnosis including checking for existence of a drift of the pressure regulating control and checking for existence of a drift of the richness regulating control when the two units operate in closed loop, the drift of the injector being established upon the joint detection of a drift of the pressure regulating control unit and of a drift of the richness regulating control unit.
    Type: Application
    Filed: November 9, 2012
    Publication date: December 11, 2014
    Applicant: RENAULT s.a.s.
    Inventors: Franck Breuille-Martin, Sylvain Hourlier, Didier Waszak