Patents by Inventor James J. Callas

James J. Callas 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).

  • Patent number: 5453573
    Abstract: During operation of an internal combustion engine, structures adjacent the piston top ring turn around position and the exhaust port are exposed to high temperatures. In order to improve cooling around these adjacent structures, the heat transfer coefficient must be increased. In this manner, energy around the top ring turn around position on the cylinder liner and around the exhaust seat can be transferred through a cooling liquid and away from the adjacent structures. The present invention enhances the cooling capability within an engine by utilizing a flow controlling device disposed between a cooling liquid inlet chamber and a cylinder liner. The flow controlling device has a plurality of orifices therein. A cooling liquid from a pressurized source is communicated to the inlet chamber and passes through the plurality of orifices to impinge a predetermined peripheral portion of the cylinder liner adjacent an exhaust port.
    Type: Grant
    Filed: July 25, 1994
    Date of Patent: September 26, 1995
    Assignee: Caterpillar Inc.
    Inventor: James J. Callas