Patents by Inventor Marshall T. Kolb

Marshall T. Kolb 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).

  • White smoke reduction apparatus and method
    Patent number: 5868116
    Abstract: An apparatus and method for reducing white smoke during start up of a compression ignition engine is disclosed. The apparatus includes an engine cylinder, a fuel injector, an engine speed sensor, and a microprocessor. The microprocessor preferably includes an engine speed controller that governs the engine speed to a desired value. The microprocessor issues a first fueling level corresponding to a difference between an actual engine speed and the desired engine speed signal. The microprocessor quits fueling the engine cylinder then determines a second fueling level. A determination about whether the cylinder is firing is then based on a comparison between the first and the second fueling level.
    Type: Grant
    Filed: May 29, 1997
    Date of Patent: February 9, 1999
    Assignee: Caterpillar Inc.
    Inventors: Edward H. Betts, David J. Doddek, Charles J. Kocian, Marshall T. Kolb, Gregg W. Uhland, Shawn J. Weck