Patents by Inventor Christof Vogel

Christof Vogel 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: 5947091
    Abstract: A fuel injection valve for an internal combustion engine includes a metering injection valve and a fuel vaporizer that is arranged upstream from an outlet spray orifice of the injection valve (10) on the intake end and has a vaporizer area with at least one assigned electric heating element. To assure in particular that the fuel vaporizer guarantees very good fuel processing in all heating states, i.e., in heating operation for complete or partial vaporization and in the unheated state, the vaporizer area that accommodates at least one heating element is closed at the outlet end by an outlet valve.
    Type: Grant
    Filed: November 3, 1997
    Date of Patent: September 7, 1999
    Assignee: Robert Bosch GmbH
    Inventors: Klaus-Henning Krohn, Ulrich Vieweg, Christof Vogel, Edwin Liebemann, Mathias Thomas
  • Patent number: 5873354
    Abstract: A fuel delivery system for an internal combustion engine having an intake air metering device, leading to individual combustion chambers several fuel injection valves, each of which is assigned to one combustion chamber, and a central fuel vaporizer to which fuel can be supplied by a fuel metering device. To reduce pollutant emissions during the warm-up phase of the internal combustion engine after start-up, fuel vapor generated in the fuel vaporizer can be added to the intake air for the combustion chambers downstream from the intake air metering device.
    Type: Grant
    Filed: June 6, 1997
    Date of Patent: February 23, 1999
    Assignee: Robert Bosch GmbH
    Inventors: Klaus-Henning Krohn, Waldemar Hans, Joerg Lange, Anwar Abidin, Thomas Betzel, Uwe Grytz, Ulrich Vieweg, Christof Vogel, Edwin Liebemann
  • Patent number: 5850822
    Abstract: A fuel injection arrangement for an internal combustion engine which has at least one combustion space and at least one intake pipe leading to this combustion space, with two fuel injection valves opening into the intake pipe upstream from at least one inlet valve. One fuel injection valve has a heater adapter. While only the fuel injection valve with the heater adapter is operated during cold start and the warm-up phase of the internal combustion engine, to a great extent, and the fuel injection valve without a heater is not in operation, a switch from one fuel injection valve to the other takes place at a point in time which is determined on the basis of the value of various operating parameters. The fuel injection arrangement is particularly suitable for use in mixture-compressing, outside-ignition internal combustion engines.
    Type: Grant
    Filed: July 29, 1997
    Date of Patent: December 22, 1998
    Assignee: Robert Bosch GmbH
    Inventors: Peter Romann, Klaus-Henning Krohn, Jorg Lange, Christof Vogel