Patents Examined by Wendell L. Burns
  • Patent number: 4072139
    Abstract: This carburetor comprises plural cell carburetors which are controlled by a servo controller which controls the internal pressure of the carburetor to maintain the pressure constant by opening the air paths of needed number of the cell carburetors.Every one of the cell carburetors is either completely opened or almost closed; that is there is no intermediate opening between said two conditions except for special use.The ratios of air to fuel which is produced in each cell carburetor are predetermined for both the open and almost closed positions.Needed air and fuel are supplied by a combination of the cell carburetors which are selected from combinations of the cell carburetors to be selected for the working condition of the combustion engine.
    Type: Grant
    Filed: May 5, 1975
    Date of Patent: February 7, 1978
    Inventor: Kuniaki Miyazawa
  • Patent number: 4063541
    Abstract: Carburetor for supplying intermixed air and atomized fuel to an engine comprises an air passageway, having a throttle for passing a controllable amount of atmospheric air, and injection means configured for injecting pressurized fuel into the air passageway in a generally flat spray pattern disposed substantially normal to the air passageway. A bypass chamber is located adjacent to the air passageway, opening thereto for capturing any unimpeded fuel injected by the injection means, returning it to the fuel tank. A metering vane located in the air passageway is configured for allowing passage of substantially all of the fuel into the bypass chamber when there is no airflow in the air passageway and for intercepting a portion of the fuel when the spray pattern is deflected by airflow in the air passageway, directing it into the air passageway. The metering vane is shaped such that the deflected portion of the fuel remains in a predetermined ratio with the airflow over the full range of engine operation.
    Type: Grant
    Filed: April 9, 1976
    Date of Patent: December 20, 1977
    Inventor: Richard D. Landers