Patents by Inventor Eva Geijer

Eva Geijer 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).

  • System comprising a pump, an injector and a regulator, with control signals to the pump which are based on calculated hose rigidities
    Patent number: 8875498
    Abstract: A pump system that includes a pump, an injector and a regulator with a calculation unit. The regulator controls the pump to pump a liquid through a hose to the injector which opens and closes in response to an injector control signal, the time for an opening and closing cycle being called injector cycle and designated Ts, and the injector's open period being designated ?. The injector has a pressure sensor to measure the pressure of the liquid in the injector and to deliver to the calculation unit a pressure sensor signal representing the pressure amplitude in the injector. The calculation unit calculates the hose's rigidity B as a function of measured pressured amplitudes A in the injector, the injector cycle Ts and the injector's open period ?, and the regulator determines the basis of B the control signal to the pump.
    Type: Grant
    Filed: April 1, 2011
    Date of Patent: November 4, 2014
    Assignee: Scania CV AB
    Inventors: Ottmar Raeymaeckers, Anders Larsson, Eva Geijer, Leif Lundin
  • SYSTEM COMPRISING A PUMP, AN INJECTOR AND A REGULATOR, WITH CONTROL SIGNALS TO THE PUMP WHICH ARE BASED ON CALCULATED HOSE RIGIDITIES
    Publication number: 20130048096
    Abstract: A pump system that includes a pump, an injector and a regulator with a calculation unit. The regulator controls the pump to pump a liquid through a hose to the injector which opens and closes in response to an injector control signal, the time for an opening and closing cycle being called injector cycle and designated Ts, and the injector's open period being designated ?. The injector has a pressure sensor to measure the pressure of the liquid in the injector and to deliver to the calculation unit a pressure sensor signal representing the pressure amplitude in the injector. The calculation unit calculates the hose's rigidity B as a function of measured pressured amplitudes A in the injector, the injector cycle Ts and the injector's open period ?, and the regulator determines the basis of B the control signal to the pump.
    Type: Application
    Filed: April 1, 2011
    Publication date: February 28, 2013
    Inventors: Ottmar Raeymaeckers, Anders Larsson, Eva Geijer, Leif Lundin