Patents by Inventor David Caughran

David Caughran 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: 8740108
    Abstract: In this system, a device is placed inside the injectors on the manifold or inside three different design housings above the combustion chambers of engines. The device is a combine that has a cylinder that has a set of vanes. In one embodiment a small motor is used to turn the cylinder, which helps to atomize the fuel to a fine state. This atomization improves combustion in that the smaller fuel particles can burn more efficiently and more completely than larger drops of fuel that is simply squirted into a cylinder or manifold. In two other embodiments, the cylinder (combine) can be turned with a belt driven by the engine.
    Type: Grant
    Filed: December 17, 2010
    Date of Patent: June 3, 2014
    Inventor: David Caughran
  • Patent number: 4712526
    Abstract: A new piston design is disclosed for use in internal combustion engines. The invention consists of a piston that has a turbine insert installed inside an internal cavity. The turbine insert has a set of turbine blades mounted under the piston head. The piston head has an inlet port, located in the center of the piston head, and a series of outlet ports concentrically placed around the perimeter of the piston head. In practice, the air fuel mixture in the cylinder is forced into the piston through the piston inlet port as the piston is moved towards the cylinder head during the compression stroke. The air fuel mixture is then swirled by the turbine blades within the piston and then forced out of the piston through the outlet ports. One embodiment of the invention uses angled outlet ports that help direct the air/fuel mixture to the center of the cylinder. A second embodiment of the invention disloses a threaded turbine assembly instead of the pin-held insert of the first embodiment.
    Type: Grant
    Filed: January 23, 1986
    Date of Patent: December 15, 1987
    Inventor: David Caughran