Patents by Inventor Wolfgang Haydn

Wolfgang Haydn 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: 6873917
    Abstract: A method and control unit for determining the failure probability of a component of a motor-vehicle. Data in the form of damage-relevant influence parameters, which affect the failure probability of the component, are measured and stored during the operation of the component. To ascertain the failure probability, a collective loading is calculated as a determining influence parameter for establishing the fatigue limit of the component. To determine the collective loading as realistically as possible and therefore determine the failure probability as accurately as possible, the influence parameters may be evaluated during the operation of the component, in a control unit of the motor-vehicle for determining the failure probability.
    Type: Grant
    Filed: April 11, 2003
    Date of Patent: March 29, 2005
    Assignee: Robert Bosch GmbH
    Inventors: Dieter Ulrich, Dieter Eppinger, Wolfgang Haydn, Andreas Scheffold, Manfred Bacher-Hoechst
  • Publication number: 20040034504
    Abstract: A method and control unit for determining the failure probability of a component of a motor-vehicle. Data in the form of damage-relevant influence parameters, which affect the failure probability of the component, are measured and stored during the operation of the component. To ascertain the failure probability, a collective loading is calculated as a determining influence parameter for establishing the fatigue limit of the component. To determine the collective loading as realistically as possible and therefore determine the failure probability as accurately as possible, the influence parameters may be evaluated during the operation of the component, in a control unit of the motor-vehicle for determining the failure probability.
    Type: Application
    Filed: April 11, 2003
    Publication date: February 19, 2004
    Inventors: Dieter Ulrich, Dieter Eppinger, Wolfgang Haydn, Andreas Scheffold, Manfred Bacher-Hoechst
  • Patent number: 5293897
    Abstract: A pressure valve to be secured into a supply line between a pump work chamber of a fuel injection pump and a injection location of an internal combustion engine to be supplied with fuel. A pressure valve closing element provided with a sealing face is pressed by a compression spring onto a valve body provided with a valve seat. To reduce pressure waves in the supply line caused by a sudden closing of the pressure valve, a check valve that opens in the direction of the pump work chamber, and that comprises a valve seat, a valve closing element, a spring plate and a restoring spring is disposed in a through conduit of the pressure valve closing element, which is preceded by a throttle restriction. Throttling of the fuel flowing downstream of the check valve is avoided by disposing a through conduit in the spring plate. A filler piece inserted into the through conduit and defining the opening stroke of the check valve, also has a longitudinal bore that opens into a transverse bore for an unthrottled fuel flow.
    Type: Grant
    Filed: January 29, 1993
    Date of Patent: March 15, 1994
    Assignee: Robert Bosch GmbH
    Inventors: Johann Warga, Wolfgang Haydn, Uwe Kuhn