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    • 97. 发明授权
    • Cold start fuel control system for an internal combustion engine
    • 用于内燃机的冷启动燃料控制系统
    • US5598826A
    • 1997-02-04
    • US465229
    • 1995-06-05
    • Frank W. HuntToshiharu Nogi
    • Frank W. HuntToshiharu Nogi
    • F02D41/00F02D41/06F02M25/08F02M53/06F02M69/04F02M69/08F02M69/32F02M51/00
    • F02D41/003F02D41/0035F02D41/064F02M25/08F02M53/06F02M69/044F02M69/08F02M69/325
    • A cold start fuel control system provided for use with an internal combustion engine of the type having at least one combustion chamber, an air/fuel passageway fluidly connected with the combustion chamber and the source of fuel. The fuel control system includes an annular heater having an interior annular wall disposed within the passageway. A cold start fuel injector has its inlet fluidly connected to the fuel source and an outlet open to the passageway such that fuel from the outlet flows into the interior of the heater. Whenever the operating temperature of the engine is below a predetermined level, fuel is selectively provided to the cold start fuel injector which injects fuel into the passageway. The fuel discharge from the cold start fuel injector is swirled so that at least a portion of the fuel from the cold start fuel injector impinges upon the annular heater and is thus vaporized.
    • 一种冷启动燃料控制系统,其设置用于具有至少一个燃烧室的类型的内燃机,与燃烧室流体连接的空气/燃料通道和燃料源。 燃料控制系统包括环形加热器,其具有设置在通道内的内部环形壁。 冷启动燃料喷射器的入口流体地连接到燃料源和通向通道的出口,使得来自出口的燃料流入加热器的内部。 每当发动机的工作温度低于预定水平时,将燃料选择性地提供给冷启动燃料喷射器,其将燃料喷射到通道中。 来自冷起动燃料喷射器的燃料排出物旋转,使得来自冷启动燃料喷射器的燃料的至少一部分撞击环形加热器并因此蒸发。
    • 98. 发明授权
    • Cold start fuel control system
    • 冷启动燃油控制系统
    • US5482023A
    • 1996-01-09
    • US364893
    • 1994-12-27
    • Frank W. HuntToshiharu Nogi
    • Frank W. HuntToshiharu Nogi
    • F02D41/00F02D41/06F02M25/08F02M53/06F02M69/04F02M69/08F02M69/32F02M33/02F02M51/00
    • F02D41/003F02D41/0035F02D41/064F02M25/08F02M53/06F02M69/044F02M69/08F02M69/325
    • A cold start fuel control system as provided for an internal combustion engine of the type having at least one combustion chamber, an intake manifold and a source of fuel. A fuel vapor canister has an interior chamber fluidly connected to the source of fuel and a normally closed shut-off valve fluidly connected between the canister and ambient air. A normally closed purge valve is then fluidly connected in series between the interior of the canister and the intake manifold. The system also includes a cold start fuel injector having an inlet connected to the fuel source and an outlet open to the intake manifold or, optionally, to the interior of the fuel vapor canister. During a cold start engine condition, fuel is supplied as needed from both the fuel vapor canister and cold start injector by activating the cold start injector and simultaneously opening the purge and shut-off valves in synchronism with the engine intake cycle(s). An air flow sensor measures the mass flow of the air/fuel mixture to the engine and provide an output signal to an electronic control unit which controls the activation of the cold start fuel injector and/or valves to achieve a stoichiometric or slightly lean air/fuel mixture. Additionally, secondary air is provided through the cold start fuel injector for enhancing the atomization of the fuel in the air from the cold start injector.
    • 一种用于具有至少一个燃烧室,进气歧管和燃料源的类型的内燃机的冷启动燃料控制系统。 燃料蒸汽罐具有流体连接到燃料源的内部室和流体连接在罐和环境空气之间的常闭截止阀。 然后将常闭的净化阀在罐的内部和进气歧管之间串联流体连接。 该系统还包括冷启动燃料喷射器,其具有连接到燃料源的入口和通向进气歧管的出口,或者可选地,连接到燃料蒸气罐的内部。 在冷启动发动机状态下,通过启动冷启动喷射器并同时与发动机进气循环同步地打开吹扫阀和截止阀,根据需要从燃料蒸汽罐和冷启动喷射器供应燃料。 空气流量传感器测量空气/燃料混合物到发动机的质量流量,并向电子控制单元提供输出信号,该控制单元控制冷起动燃料喷射器和/或阀的启动,以实现化学计量或稍微贫瘠的空气/ 燃料混合物 此外,通过冷启动燃料喷射器提供二次空气,用于增强来自冷启动喷射器的空气中的燃料的雾化。