Patents by Inventor Siegfried Roser

Siegfried Roser 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).

  • Activating mechanism for the working medium valves of a reciprocating piston engine with hydraulic play compensating elements
    Patent number: 4241707
    Abstract: An actuating installation for working medium valves in reciprocating engines with at least one cam shaft and one cam each for each valve and with at least an indirect actuation of the valves by the corresponding cam, and with hydraulic play-compensating elements, each of which is provided with one working space filled with lubricating oil that is connected to the oil circulatory system of the reciprocating piston engine; the place of the hydraulic connection of the play-compensating elements with the oil lubricating system is located at such a place in this circulatory system, at which the oil circulatory system has a pressure, conditioned on the system, which at all operating conditions lies below the feed pressure of the circulation but above the atmospheric air pressure of the reciprocating engine.
    Type: Grant
    Filed: April 4, 1975
    Date of Patent: December 30, 1980
    Assignee: Daimler-Benz Aktiengesellschaft
    Inventors: Bertold Mayr, Siegfried Roser