Patents by Inventor Ganghua Rüan

Ganghua Rüan 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).

  • Method for the heating up of a ceramic glow plug
    Patent number: 8153936
    Abstract: Herein is described a method for the heating-up of a ceramic glow plug by applying a variable electric voltage to the glow plug. In accordance with the invention it is provided that, starting from a base value, the electric voltage increases in a time-averaged manner superproportional to the elapsed heating-up time. The invention relates also to a glow plug control unit for carrying out of such a method.
    Type: Grant
    Filed: June 30, 2008
    Date of Patent: April 10, 2012
    Assignee: BERU Aktiengesellschaft
    Inventors: Markus Kernwein, Jörg Stöckle, Olaf Toedter, Ganghua Rüan, Marc Rottner