Patents by Inventor Guenter Loebenfelder

Guenter Loebenfelder 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: 5931388
    Abstract: A fuel injection valve for internal combustion engines, having a valve member guided axially displaceably in a bore of a valve body. On an end of the valve member toward the combustion chamber, a valve sealing face is disposed, with which the valve member cooperates with a valve seat face on the valve body to control an injection cross section. At least one valve spring that acts upon the valve member and is inserted into a spring chamber is provided in a valve retaining body that is braced axially against the valve body. The spring chamber is closed on one end remote from the combustion chamber by a lid. The lid is secured to the valve retaining body by a crimped connection.
    Type: Grant
    Filed: June 25, 1997
    Date of Patent: August 3, 1999
    Assignee: Robert Bosch GmbH
    Inventors: Guenter Loebenfelder, Gerhard Bauer, Bernd Kailing, Manfred Mack, Oliver Brygier