Patents by Inventor Michael E. Heffron

Michael E. Heffron 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 air density compensation of internal combustion engines
    Patent number: 5113832
    Abstract: Apparatus and method for compensating fuel delivery to the cylinders of internal combustion engines for the barometric pressure; for the intake air temperature; and for the heat transferred from the internal engine surfaces to the intake air prior to the air being confined within the cylinder. In the apparatus, temperature sensors are placed to measure internal engine surfaces. The method and apparatus can be used with both a four-stroke or two-stroke engine. In a two-stroke engine, the sensor would be mounted on the crankcase; in a four-stroke, on the intake manifold.
    Type: Grant
    Filed: May 23, 1991
    Date of Patent: May 19, 1992
    Assignee: Pacer Industries, Inc.
    Inventor: Michael E. Heffron