Patents by Inventor Stefan Schantz

Stefan Schantz 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 producing throttle holes having a low cavitation transmission point
    Patent number: 8881400
    Abstract: A method for producing a throttle point, particularly in a channel of a valve piece of a fuel injector is disclosed. The following are performed: first, the outlet channel is created by machining. Then, the throttle point is stamped by a stamping die inserted into a guide hole. The pre-stamped throttle point is electrical-discharge machined in such a way that said throttle point has an electrical-discharge machined inlet area and comprises a stamped outlet area, which lies before a continuous cross-section expansion of the outlet channel as viewed in the flow direction.
    Type: Grant
    Filed: October 26, 2009
    Date of Patent: November 11, 2014
    Assignee: Robert Bosch GmbH
    Inventors: Stefan Schantz, Klaus Seelbach
  • Method for Producing Throttle Holes having a Low Cavitation Transmission Point
    Publication number: 20110226344
    Abstract: A method for producing a throttle point, particularly in a channel of a valve piece of a fuel injector is disclosed. The following are performed: first, the outlet channel is created by machining Then, the throttle point is stamped by a stamping die inserted into a guide hole. The pre-stamped throttle point is electrical-discharge machined in such a way that said throttle point has an electrical-discharge machined inlet area and comprises a stamped outlet area, which lies before a continuous cross-section expansion of the outlet channel as viewed in the flow direction.
    Type: Application
    Filed: October 26, 2009
    Publication date: September 22, 2011
    Applicant: Robert Bosch GmbH
    Inventors: Stefan Schantz, Klaus Seelbach