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    • 21. 发明授权
    • Carburetor with deceleration circuit
    • 具有减速电路的CARBURETOR
    • US3852391A
    • 1974-12-03
    • US23360272
    • 1972-03-10
    • NISSAN MOTOR
    • HISATOMI TSASAKI K
    • F02M3/09F02M7/12
    • F02M3/09Y10S261/19Y10S261/21
    • A carburetor for an automotive internal combustion engine which is capable of eliminating unburned engine exhaust gases emitted to the atmosphere during decelerating operation of the engine by supplying the engine with an air-fuel mixture of optimum amount and mixture ratio that are specifically suited for decelerating condition of the engine. The carburetor includes a by-pass passage having an inlet port communicating with a carburetor induction passage upstream of a venturi and an outlet port communicating with said carburetor induction passage downstream of a throttle valve, an air jet provided in the by-pass passage, a fuel jet provided in the by-pass passage downstream of the air jet, and a control unit for controlling the flow of air-fuel mixture passing through the by-pass passage in response to an intake manifold vacuum prevailing in the carburetor induction passage downstream of the throttle valve.
    • 一种用于汽车内燃机的化油器,其能够通过向发动机提供特别适合于减速条件的最佳量和混合比的空气燃料混合物来消除发动机减速运行期间排放到大气中的未燃烧的发动机废气 的发动机。 化油器包括旁通通道,其具有与文丘里管上游的化油器感应通路连通的入口和与节流阀下游的化油器感应通路连通的出口,设置在旁路通道中的空气喷射, 燃料喷射设置在空气喷流下游的旁路通道中,以及控制单元,用于响应于在化油器感应通道下游的进气歧管真空度控制通过旁路通道的空气 - 燃料混合物的流动 节流阀。