Patents by Inventor Werner Hanft

Werner Hanft 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: 6745457
    Abstract: An electromagnetically operable valve having an electromagnetic circuit which includes at least one solenoid coil, a core used as internal pole, and an armature, as well as a magnet housing at least partially surrounding the solenoid coil. The magnet housing is produced from a sheet-metal blank with the aid of rolling or bending. The magnet housing has a middle housing area that is adjoined in the axial direction on both sides by attachment areas which have a smaller outside diameter than the housing area. The valve is particularly suitable as a fuel injector for fuel-injection systems of mixture-compressing internal combustion engines with externally supplied ignition.
    Type: Grant
    Filed: December 7, 2001
    Date of Patent: June 8, 2004
    Assignee: Robert Bosch GmbH
    Inventors: Klaus Noller, Werner Hanft, Hubert Stier
  • Publication number: 20020040524
    Abstract: An electromagnetically operable valve having an electromagnetic circuit which includes at least one solenoid coil, a core used as internal pole, and an armature, as well as a magnet housing at least partially surrounding the solenoid coil. The magnet housing is produced from a sheet-metal blank with the aid of rolling or bending. The magnet housing has a middle housing area that is adjoined in the axial direction on both sides by attachment areas which have a smaller outside diameter than the housing area. The valve is particularly suitable as a fuel injector for fuel-injection systems of mixture-compressing internal combustion engines with externally supplied ignition.
    Type: Application
    Filed: December 7, 2001
    Publication date: April 11, 2002
    Inventors: Klaus Noller, Werner Hanft, Hubert Stier
  • Patent number: 6357676
    Abstract: The invention relates to a fuel injection valve having an axially movable valve needle (13) having at least one closing body support (17) and a spherical valve closing body (18). The closing body support (17) accommodates the valve closing body (18) in a downstream end area (46). The valve closing body (18) has at least one flattened zone (24) on its surface, whereby the flattened area has an axial extension component, and whereby at least one channel (47) for a flow of fuel is formed between the at least one flattened zone (24) and an inner wall of the closing body support (17). The fuel injection valve is especially well suited for use in fuel injection systems of mixture-compressing, SI internal combustion engines.
    Type: Grant
    Filed: November 15, 2000
    Date of Patent: March 19, 2002
    Assignee: Robert Bosch GmbH
    Inventor: Werner Hanft
  • Patent number: 6341759
    Abstract: An electromagnetically operable valve having an electromagnetic circuit which includes at least one solenoid coil (1), a core used as internal pole, and an armature, as well as a magnet housing (60) at least partially surrounding the solenoid coil (1). The magnet housing (60) is produced from a sheet-metal blank with the aid of rolling or bending. The magnet housing (60) has a middle housing area (630) that is adjoined in the axial direction on both sides by attachment areas (640, 650) which have a smaller outside diameter than the housing area (630). The valve is particularly suitable as a fuel injector for fuel-injection systems of mixture-compressing internal combustion engines with externally supplied ignition.
    Type: Grant
    Filed: November 15, 2000
    Date of Patent: January 29, 2002
    Assignee: Robert Bosch GmbH
    Inventors: Klaus Noller, Werner Hanft, Hubert Stier
  • Patent number: 6299079
    Abstract: A fuel injector for fuel-injection systems of internal combustion engines includes two preassembled, independent assemblies. A functional part includes an electromagnetic circuit and a sealing valve, while a connection part is formed mainly by a hydraulic connection and an electrical connection. In the ready-mounted injector, electrical connecting elements and hydraulic connecting elements of both assemblies cooperate, thus ensuring a reliable electrical and hydraulic connection An extrusion coat in the interconnection region provides mechanical joining of both assemblies, great stability of the valve and sufficient imperviousness.
    Type: Grant
    Filed: May 12, 2000
    Date of Patent: October 9, 2001
    Assignee: Robert Bosch GmbH
    Inventors: Klaus Noller, Werner Hanft, Dieter Maier, Hubert Stier, Hans Weidler, Guenter Dantes, Detlef Nowak, Werner Schneider