Abstract: Method for controlling an injector intended for injecting a pollution-control liquid additive into the exhaust gases of an internal combustion engine at a flow rate governed by a given frequency and opening time of the injector, the injector having a calibration curve that establishes, at given frequency, pressure, temperature and nature of the liquid, the amount of liquid injected during an opening of the injector as a function of the duration of this opening, this curve comprising at least one linear zone (calibration line) and a non-linear zone, said method being characterized in that in the linear zone the parameters of the calibration line are used and in the non-linear zone use is made of a set opening time and a variable frequency according to at least one calibration point established for this purpose. SCR system to which this method can be applied.
Type:
Application
Filed:
September 12, 2008
Publication date:
August 19, 2010
Applicant:
INERGY AUTOMATIVE SYSTEMS RESEARCH (Societe Anonyme)
Inventors:
Nicolas Duret, Jean-Claude Habumuremyi, Frederic Peucat, Claude Mesjasz
Abstract: Sealing and safety device made from flexible elastomer material, for filling a hollow body with a liquid using a delivery nozzle, comprising an annular seal for surrounding the nozzle and preventing the exit of gases from the hollow body and also a valve capable of opening, in the event of excess overpressure in the hollow body, only towards the external atmosphere so as to create a passage allowing the escape of liquid and/or of gas.
Type:
Grant
Filed:
September 12, 2003
Date of Patent:
August 1, 2006
Assignee:
Inergy Automative Systems Research (Societe Anonyme)