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    • 5. 发明授权
    • Carburetor system for multicylinder engine
    • 化油器系统用于多缸发动机
    • US4061118A
    • 1977-12-06
    • US697125
    • 1976-06-17
    • Yuhiko Kiyota
    • Yuhiko Kiyota
    • F02M11/00F02B19/10F02M13/04F02M13/06F02B33/00
    • F02M13/046F02B19/1028Y02T10/125
    • A carburetor system for us in a multicylinder engine comprises a carburetor having a main fuel-air mixture supply device to supply a mixture leaner than stoichiometric to at least one first cylinder and a corresponding number of second cylinder. A rich mixture supply device, integrated into the carburetor, has a rich mixture forming passage to make a mixture richer than stoichiometric. The main mixture supply device communicates with the first and second cylinders by a first passage, while the rich mixture forming passage with the second cylinder by a second passage. A first, second and third valves are provided in the first, second and rich mixture forming passages, respectively. These valves respectively are opened and closed by a first, second and third valve actuation devices, which are in turn regulated by an operation control device. Depending on the engine operating range and driving conditions, this carburetor system supplies a rich mixture to the second cylinder to raise the fuel-air ratio in it. By thus feeding both lean and rich mixtures to the engine, this system purifies its exhaust gases.
    • 用于多缸发动机的化油器系统包括具有主要燃料 - 空气混合物供应装置的化油器,其将比化学计量稀释的混合物供给至少一个第一气缸和相应数量的第二气缸。 集成到化油器中的丰富的混合物供应装置具有丰富的混合物形成通道,使混合物比化学计量更浓。 主混合物供给装置通过第一通道与第一和第二气缸连通,而富混合物通过第二通道与第二气缸形成通道。 第一,第二和第三阀分别设置在第一,第二和富混合物形成通道中。 这些阀分别由第一,第二和第三阀致动装置打开和关闭,第一,第二和第三阀致动装置又由操作控制装置调节。 根据发动机工作范围和驾驶条件,该化油器系统向第二气缸提供丰富的混合物以提高其中的燃料空气比。 通过这样将精益和丰富的混合物喂给发动机,该系统净化其废气。