Patents by Inventor Raphaël POURRET

Raphaël POURRET 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).

  • Patent number: 9850795
    Abstract: A process is provided for regenerating an exhaust gas after-treatment device in an exhaust line of an internal combustion engine arrangement, the exhaust line including a particle filter. The process includes identifying when soot loading of the particle filter exceeds a predetermined level. After that, temperature of exhaust gases at the particle filter is maintained within a first temperature range until at least one of a predetermined period of time has lapsed or a determination is made that soot loading of the particle filter is below the predetermined level. After that, the temperature of the exhaust gases at the particle filter is increased to within a second temperature range above the first temperature range. An internal combustion engine arrangement is also disclosed.
    Type: Grant
    Filed: April 3, 2013
    Date of Patent: December 26, 2017
    Assignees: Volvo Truck Corporation, Renault Trucks
    Inventors: Eduard Emil Iojoiu, Raphaël Pourret, Martin Petersson, Björn Häggendal, Johan Dahl
  • Publication number: 20160053648
    Abstract: A process is provided for regenerating an exhaust gas after-treatment device in an exhaust line of an internal combustion engine arrangement, the exhaust line including a particle filter. The process includes identifying when soot loading of the particle filter exceeds a predetermined level. After that, temperature of exhaust gases at the particle filter is maintained within a first temperature range until at least one of a predetermined period of time has lapsed or a determination is made that soot loading of the particle filter is below the predetermined level. After that, the temperature of the exhaust gases at the particle filter is increased to within a second temperature range above the first temperature range. An internal combustion engine arrangement is also disclosed.
    Type: Application
    Filed: April 3, 2013
    Publication date: February 25, 2016
    Applicants: RENAULT TRUCKS, VOLVO TRUCK CORPORATION
    Inventors: Eduard Emil IOJOIU, Raphaël POURRET, Martin PETERSSON, Björn HÄGGENDAL, Johan DAHL
  • Patent number: 6889661
    Abstract: A fuel injection system having a high-pressure pump and a fuel injection valve for each cylinder of the engine in which the pump has a work chamber, and the injection valve has a valve member movable in an opening direction counter to the force of a closing spring braced between the injection valve member and a displaceable storage piston that is acted upon, on its side remote from the closing spring, by the pressure in the pump work chamber. The storage piston is movable into a storage chamber counter to the force of the closing spring, and the deflection stroke motion of the storage piston is limited by a stop. The storage piston has one shaft portion of smaller cross section, disposed in an outset position in a connecting bore, and one portion of larger cross section disposed outside the connecting bore toward the pump work chamber, and upon the deflection stroke motion of the storage piston into the storage chamber, its shaft portion of larger cross section dips into the connecting bore.
    Type: Grant
    Filed: April 12, 2002
    Date of Patent: May 10, 2005
    Assignee: Robert Bosch GmbH
    Inventors: Gérard Duplat, Raphael Pourret, Peter Voigt
  • Patent number: 6823848
    Abstract: A fuel injection system having a high-pressure pump and a fuel injection valve for each cylinder of the engine in which the pump has a work chamber, and the fuel injection valve has a valve member movable in an opening direction counter to the force of a closing spring braced between the injection valve member and a displaceable storage piston that is acted upon, on its side remote from the closing spring, by the pressure in the pump work chamber. The storage piston is movable into a storage chamber counter to the force of the closing spring and the deflection stroke motion of the storage piston is limited by a stop.
    Type: Grant
    Filed: August 27, 2003
    Date of Patent: November 30, 2004
    Assignee: Robert Bosch GmbH
    Inventors: Gérard Duplat, Raphael Pourret, Peter Voigt
  • Publication number: 20040045529
    Abstract: The fuel injection system has a high-pressure fuel pump (10) and a fuel injection valve (12) for a cylinder of the engine. The high-pressure fuel pump (10) has a pump work chamber (22), and the fuel injection valve (12) has an injection valve member (28) by which at least one injection opening (32) is controlled and which is movable in an opening direction (29) counter to the force of a closing spring (44); the closing spring (44) is braced on one end on the injection valve member (28) and on the other end on a displaceable storage piston (50) that is acted upon, on its side remote from the closing spring (44), by the pressure prevailing in the pump work chamber (22). The storage piston (50) is movable into a storage chamber (55) counter to the force of the closing spring (44), and the deflection stroke motion of the storage piston (50) into the storage chamber (55) is limited by a stop (54).
    Type: Application
    Filed: August 27, 2003
    Publication date: March 11, 2004
    Inventors: Gerard Duplat, Raphael Pourret, Peter Voijs
  • Publication number: 20040025840
    Abstract: The fuel injection system has a high-pressure fuel pump (10) and a fuel injection valve (12) for a cylinder of the engine. The high-pressure fuel pump (10) has a pump work chamber (22), and the fuel injection valve (12) has an injection valve member (28) by which at least one injection opening (32) is controlled and which is movable in an opening direction (29) counter to the force of a closing spring (44); the closing spring (44) is braced on one end on the injection valve member (28) and on the other end on a displaceable storage piston (50) that is acted upon, on its side remote from the closing spring (44), by the pressure prevailing in the pump work chamber (22). The storage piston (50) is movable into a storage chamber (54) counter to the force of the closing spring (44), and the deflection stroke motion of the storage piston (50) into the storage chamber (54) is limited by a stop (53).
    Type: Application
    Filed: August 27, 2003
    Publication date: February 12, 2004
    Inventors: Gerard Duplat, Raphael Pourret, Peter Voigt