Patents Assigned to Terrytune Developments Limited
  • Internal-combustion engines
    Patent number: 4114585
    Abstract: A spark-ignition four-stroke gasoline engine, of the commonly mass-produced type having a plurality of cylinders provided each with two poppet valves mounted in a cylinder-head of the engine and constituting respectively an inlet valve, for passing a fuel-air mixture to the cylinder, and an exhaust valve for passing exhaust gases to an exhaust manifold of the engine, is given exhaust valves which are at least 7% greater in area than the inlet valves.
    Type: Grant
    Filed: August 30, 1974
    Date of Patent: September 19, 1978
    Assignee: Terrytune Developments Limited
    Inventor: Terence Brian Dawkins