Patents by Inventor Georges Thery

Georges Thery 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).

  • Combustion chamber for two-stroke reciprocating engine, and and engine making use thereof
    Patent number: 4899698
    Abstract: The present invention relates to a combustion chamber in which two flows of gas are admitted via ports at the bottom of the cylinder, one of the flows being a mixture containing fuel and the other being a flow of pure air. These flows are admitted so that they meet inside the chamber close to the wall opposite from an exhaust port (5) so that the mixture is confined and slowed down in a cavity (9) in the cylinder head while the flow of pure air is split by an edge (12) formed between said cavity and the bottom wall (11) of the cylinder head so that one portion of this air flow returns and scavenges the combustion chamber (1).
    Type: Grant
    Filed: July 7, 1988
    Date of Patent: February 13, 1990
    Inventor: Georges Thery
  • Method for feeding a combustion chamber of a two-stroke engine of the controlled ignition type and engine applying said method
    Patent number: 4258670
    Abstract: The present invention relates to a method for feeding the combustion chamber of a two-stroke engine, according to which the constituents of the combustible mixture are admitted into the combustion chamber via two intake devices at the bottom of the cylinder. Air without fuel is admitted through two ports, symmetrically disposed with respect to the vertical plane containing the axis of the exhaust port, directed towards the wall opposite the exhaust; the petrol-and-air mixture is admitted through at least one port remotest from the exhaust so that the stream of carburetted air is directed towards the cylinder head, the carburetted mixture thus being maintained towards the wall opposite the exhaust by the two streams of air without fuel until the ports are closed. The invention finds particular application in the field of automobile construction.
    Type: Grant
    Filed: March 28, 1980
    Date of Patent: March 31, 1981
    Inventor: Georges Thery
  • Two-zone combustion chamber
    Patent number: 4235203
    Abstract: The present invention relates to an internal combustion engine comprising means at cylinder head and piston level for improving combustion while reducing the tendency to knocking and pollution. This engine comprises a double feed system, an intake port for a rich mixture being arranged in a hollow in the cylinder head and comprising a retaining cup at its base, an intake port for a poor mixture and a projecting part at the top of the piston covering the hollow and the retaining cup and defining a precombustion chamber for communicating with a part of the chamber opposite the hollow, via channels made at the base of the projecting part. The invention finds advantageous application in the domain of automobile vehicle construction.
    Type: Grant
    Filed: January 26, 1979
    Date of Patent: November 25, 1980
    Inventor: Georges Thery