| 摘要 |
PURPOSE:To stabilize combustion by allowing the fuel to take place in the primary side fuel supply system for the low speed range and, also, in the secondary side fuel supply system for the middle and high speed ranges provided with a variable venturi and by furnishing a throttle valve in the neighborhood of suction valve in the secondary side suction path. CONSTITUTION:The primary side fuel supply system is composed of a suction path 11, primary side venturi 12, and primary side throttle valve 13, where the venturi 12 is so designed that the magnitude of its sectional area can allow promotion of turning the fuel into fine particles in the low speed range. The secondary side fuel supply system is composed of a suction path 30, variable venturi 31 and secondary side throttle valve 32, where the last is fitted in the neighborhood of the suction valve 7 so as to check interference of suction gases of different cylinders. The secondary side throttle valve 32 is tied to primary side throttle valve 13 with a link for limitation of its opening. |
