Patents by Inventor Matthew E. Schulman

Matthew E. Schulman 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 controlling compression ignition combustion
    Patent number: 6378489
    Abstract: At least two separate fuels, having different volatility characteristics, are used to control the combustion phasing in a compression ignition engine. Desirably, the separate fuels are produced by distillation by which a parent fuel is separated into separate fractions having different reactivity. The provision multiple fuels by distillation and the control method embodying the present invention are particularly useful in controlling the combustion phasing of homogenous charge compression ignition combustion processes.
    Type: Grant
    Filed: May 24, 2001
    Date of Patent: April 30, 2002
    Inventors: Rudolf H. Stanglmaier, Charles E. Roberts, Jr., Daniel W. Dickey, Thomas W. Ryan, III, Jeffrey A. Leet, Lee G. Dodge, Matthew E. Schulman
  • Electronic control for a hydraulically activated, electronically controlled injector fuel system and method for operating same
    Patent number: 6102004
    Abstract: An apparatus and method for varying the current levels of a fuel injection signal used in connection with an electronically controlled hydraulic actuator unit injector fuel system is disclosed. The apparatus and method varies the current level of the fuel injection signal delivered to the unit injector based on sensed engine parameters, which preferably include a sensed pressure of hydraulic actuating fluid and a sensed temperature of the engine.
    Type: Grant
    Filed: December 19, 1997
    Date of Patent: August 15, 2000
    Assignee: Caterpillar, Inc.
    Inventors: Gary L. Cowden, Errol W. Davis, Brian G. McGee, Daniel R. Puckett, Matthew E. Schulman, John P. Timmons