Patents by Inventor Mattias Zettl

Mattias Zettl 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).

  • Injector with a magnet valve for controlling an injection valve
    Patent number: 6877680
    Abstract: Disclosed is an injector for fuel injection, with a magnet valve for controlling an injection valve, in which the magnet valve has a movable armature that can be moved onto a valve seat in the lower armature chamber. The lower armature chamber communicates fluidically with the control pressure chamber of the injection valve via bores. Via a return bore, incidental leak fuel quantities can be returned to a tank via the lower armature chamber. To prevent armature recoil upon closure of the valve seat by the armature, it is proposed that means be provided in the injector for reducing pressure fluctuations occurring in the lower armature chamber. Eliminating pressure fluctuations in the lower armature chamber leads to maximal elimination of armature recoil.
    Type: Grant
    Filed: November 20, 2002
    Date of Patent: April 12, 2005
    Assignee: Robert Bosch GmbH
    Inventors: Ruediger Bauer, Rainer Schnatterer, Mattias Zettl
  • Injector with a magnet valve for controlling an injection valve
    Publication number: 20030150930
    Abstract: Disclosed is an injector for fuel injection, with a magnet valve for controlling an injection valve, in which the magnet valve has a movable armature that can be moved onto a valve seat in the lower armature chamber. The lower armature chamber communicates fluidically with the control pressure chamber of the injection valve via bores. Via a return bore, incidental leak fuel quantities can be returned to a tank via the lower armature chamber. To prevent armature recoil upon closure of the valve seat by the armature, it is proposed that means be provided in the injector for reducing pressure fluctuations occurring in the lower armature chamber. Eliminating pressure fluctuations in the lower armature chamber leads to maximal elimination of armature recoil.
    Type: Application
    Filed: November 20, 2002
    Publication date: August 14, 2003
    Applicant: Robert Bosch GmbH
    Inventors: Ruediger Bauer, Rainer Schnatterer, Mattias Zettl