Patents by Inventor Jon R. Padfield

Jon R. Padfield 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).

  • Intake air dehumidification system for an internal combustion engine
    Patent number: 6817197
    Abstract: An intake air dehumidification system for an internal combustion engine includes a peltier junction device responsive to at least one control signal to cool, and therefore condense moisture from, ambient air supplied by an air intake conduit to an intake manifold of the engine. Specific humidity of the ambient air supplied to the intake manifold is determined, and a control circuit is provided to produce the at least one control signal as a function of the specific humidity to maintain the specific humidity of the ambient air supplied to the intake manifold near a target humidity value.
    Type: Grant
    Filed: September 10, 2003
    Date of Patent: November 16, 2004
    Assignee: Cummins, Inc.
    Inventor: Jon R. Padfield