Patents by Inventor Gerhard Dillman

Gerhard Dillman 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 and system for controlling the temperature of a heat measuring sensor especially in motor vehicles
    Patent number: 4291572
    Abstract: A method and system for controlling the temperature of a heat measuring sensor such as an oxygen sensor located in the exhaust line of an internal combustion engine so that the oxygen sensor will operate within optimal operating temperature. To accomplish this, a heating system including a control mechanism is provided for the oxygen sensor which adjusts the temperature of the oxygen sensor by controlling the output of a heater during the operation of the internal combustion engine according to characteristic engine operating conditions which have an effect on the temperature of the oxygen sensor, the most significant of which is engine load status. These conditions are sensed as a quantity by probes located so as to measure such operating conditions and send a signal to the control mechanism and its sensor heater.
    Type: Grant
    Filed: July 3, 1980
    Date of Patent: September 29, 1981
    Assignee: Robert Bosch GmbH
    Inventors: Helmut Maurer, Gerhard Dillman, Franz Rieger, Ernst Linder