| 摘要 |
PURPOSE:To correctly control supply of fuel, by controlling a variable jet to be opened and closed considering a power system fuel supply quantity, in the case of a carburetor equipped with a power fuel system parallelly to a main fuel system providing the variable jet. CONSTITUTION:An LPG carburetor 5 supplies fuel to its Venturi from an LPG regulator 15, by a main fuel passage 12 equipped with a variable jet 16 and a power fuel passage 13 equipped with a power valve 20. An opening degree of a valve 18, controlling the variable jet 16, is controlled by an output of a control device 40. In an operating range power fuel is supplied, the control unit 40, adding a signal value Sn necessary from a virtual minimum opening condition of the variable jet to its full closing and a signal value Sp of the power fuel amount to a basic value Sb of a control signal, determined in accordance with an intake air quantity per one stroke, to be multiplied by a correction coefficient, controls the valve 18 by a value subtracting said values Sn and Sp from the above calculated value. |
