Patents by Inventor Siegfried Ruthhardt

Siegfried Ruthhardt 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: 5255652
    Abstract: A speed governor for fuel injection pumps of internal combustion engines that has a centrifugal adjuster that acts counter to the force of governor springs to generate a speed-dependent adjustment travel of a governor sleeve and that acts on a fuel quantity adjusting device of a fuel injection pump via the governor sleeve and a governor lever disposed thereupon In this process a charge-pressure-dependently adjustable stop for a full-load fuel supply quantity, which is disposed on a stop lever is pivoted as a function of temperature and speed into the adjustment path of a counter stop disposed on the fuel quantity adjusting device, in such a way that, after a certain speed and a certain operating temperature of the engine has been reached, the stop comes into contact with this counter stop of the fuel quantity adjusting device.
    Type: Grant
    Filed: March 10, 1993
    Date of Patent: October 26, 1993
    Assignee: Robert Bosch GmbH
    Inventors: Martin Boehm, Karsten Hummel, Siegfried Ruthhardt