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    • 2. 发明授权
    • Fuel supplying device for use in fuel injection type internal combustion
engine
    • 用于燃油喷射型内燃机的燃料供应装置
    • US4294213A
    • 1981-10-13
    • US56310
    • 1979-07-10
    • Masaharu SumiyoshiSetsuro SekiyaKatsuhiko MotosugiJunzo UozumiTsuneo AndoYuzo TakeuchiMikio Minoura
    • Masaharu SumiyoshiSetsuro SekiyaKatsuhiko MotosugiJunzo UozumiTsuneo AndoYuzo TakeuchiMikio Minoura
    • F02D3/02F02M69/00F02M69/22F02M69/32F02M69/38F02M39/00
    • F02M69/22F02M69/32F02M69/386
    • A fuel supplying device for use in fuel injection type internal combustion engine. The device has a fuel metering device operatively connected to an air valve device disposed in the air horn upstream of a throttle valve, fuel supplying means adapted to supply the fuel at a constant supplying pressure to the fuel metering device, a constant differential pressure valve arranged to maintain a predetermined differential pressure across the fuel metering device, and an injector for discharging the metered fuel into the air horn in the vicinity of the throttle valve. The constant differential pressure valve includes a diaphragm type valve arranged to sense and amplify differential pressure across the fuel metering device, and a variable orifice type flow control device arranged to charge flow resistance of the metered fuel. The diaphragm type valve has a function to detect and amplify the differential pressure across the fuel metering device, while the pressure of the metered fuel is controlled by the variable orifice type flow control device which is actuated in response to the differential pressure sensed and amplified by the diaphragm type valve.
    • 一种用于燃料喷射型内燃机的燃料供应装置。 所述装置具有可操作地连接到设置在节气门上游的空气喇叭口中的空气阀装置的燃料计量装置,适于将燃料以恒定的供应压力供应给燃料计量装置的燃料供给装置, 以保持燃料计量装置两端的预定压差,以及用于将计量燃料排放到节气门附近的空气喇叭中的喷射器。 恒定差压阀包括隔离阀式阀,其布置成感测和放大燃料计量装置两端的压差,以及可变孔型流量控制装置,其布置成对计量燃料的流动阻力进行充气。 隔膜式阀具有检测和放大燃料计量装置两端的压差的功能,而计量燃料的压力由可变孔型流量控制装置控制,可变孔型流量控制装置响应于通过 隔膜式阀。
    • 7. 发明授权
    • Air-fuel ratio control apparatus of a fuel supply system for an internal
combustion engine
    • 用于内燃机的燃料供应系统的空燃比控制装置
    • US4207849A
    • 1980-06-17
    • US932939
    • 1978-08-11
    • Masaharu SumiyoshiSetsuro SekiyaKatsuhiko MotosugiJunzo UozumiTsuneo AndoYuzo TakeuchiMikio Minoura
    • Masaharu SumiyoshiSetsuro SekiyaKatsuhiko MotosugiJunzo UozumiTsuneo AndoYuzo TakeuchiMikio Minoura
    • F02D41/34F02D3/02F02D35/00F02D41/38F02M69/22F02M69/38F02M39/00
    • F02M69/386F02D35/0092F02M69/22
    • An air-fuel ratio control apparatus for an internal combustion engine has an air valve disposed in an intake passage downstream of a throttle valve to cooperate therewith to define an air pressure chamber and operative to maintain a substantially constant pressure therein. A fuel circuit includes a fuel discharge port open to the intake passage and a fuel-metering orifice operatively associated with the air valve such that the fuel-flowing section of the orifice is varied in proportion to the air-flowing section of the air valve. A constant differential fuel pressure valve is disposed in the fuel circuit to maintain a substantially constant fuel pressure difference across the fuel metering orifice during normal engine operation. The differential fuel pressure valve is mechanically operatively connected to a piston-cylinder assembly into which the fuel pressure upstream of the fuel-metering orifice is introduced. The position of the piston relative to the cylinder is varied when the engine operating condition is varied. The movement of the piston varies the fuel-flowing section of the differential fuel pressure valve thereby to vary the fuel pressure difference across the fuel-metering orifice whereby the air-fuel ratio is varied when the engine operating condition is varied.
    • 用于内燃机的空燃比控制装置具有设置在节气门下游的进气通道中的空气阀,以与其协调以限定空气压力室并且可操作以在其中保持基本恒定的压力。 燃料回路包括通向进气通道的燃料排放口和与空气阀可操作地相关联的燃料计量孔,使得孔的燃料流动部分与空气阀的空气流动部分成比例地变化。 恒定差压燃料压力阀设置在燃料回路中,以在正常的发动机运行期间在燃料计量孔口两端保持基本恒定的燃料压力差。 差动燃料压力阀机械地操作地连接到活塞 - 气缸组件,燃料计量孔的上游的燃料压力被引入到该组件中。 当发动机工作条件变化时,活塞相对于气缸的位置是变化的。 活塞的运动改变了差动燃料压力阀的燃料流动部分,从而改变了燃料计量孔之间的燃料压力差,从而当发动机运行状态变化时空燃比变化。
    • 9. 发明授权
    • Fuel supply apparatus for internal combustion engines
    • 内燃机燃油供应装置
    • US4253440A
    • 1981-03-03
    • US922852
    • 1978-07-07
    • Masaharu SumiyoshiSetsuro SekiyaKatsuhiko MotosugiJunzo UozumiTsuneo AndoYuzo TakeuchiMikio Minoura
    • Masaharu SumiyoshiSetsuro SekiyaKatsuhiko MotosugiJunzo UozumiTsuneo AndoYuzo TakeuchiMikio Minoura
    • F02D3/00F02M69/00F02M69/22F02M69/26F02M69/38F02M69/44F02M57/04F02M57/00
    • F02M69/26F02M69/22F02M69/386F02M69/44
    • A fuel supply apparatus for internal combustion engines of a type including an air valve disposed in an intake conduit of the engine upstream of a throttle valve. A sensor is used for sensing the pressure in an air pressure chamber defined within the intake conduit between the air valve and the throttle valve and a feedback control unit is used for controlling the air valve in response to the pressure sensed by the sensor in order to maintain the pressure in the air pressure chamber at a preset value. A fuel flow metering valve is disposed in a fuel feed channel leading from a source of fuel under pressure to the intake conduit and the metering value is interlocked with the air valve in such a manner that the opening degree of the fuel metering valve is in proportion to that of the air valve. Also a pressure difference control unit is employed for maintaining the pressure difference of fuel across the fuel metering valve at a preset value, whereby the air-fuel ratio of an air-fuel mixture is maintained constant independently of the engine speed. The fuel supply apparatus of the above type further comprises a variable volume chamber defined by a cylinder and a piston slidably disposed within the cylinder and interlocked with the throttle valve. The pressure variation in the variable volume chamber according to operation of the throttle valve for acceleration or deceleration of the engine is transmitted to either the pressure difference control unit or the air valve control unit to correct the preset pressure difference across the fuel metering valve or the preset pressure in the air pressure chamber, whereby the air-fuel ratio is made richer or leaner during acceleration or deceleration of the engine.
    • 一种用于内燃机的燃料供应装置,其类型包括设置在发动机的进气管道中的空气阀在节气门上游。 传感器用于感测在空气阀和节流阀之间限定在进气管道内的空气压力室中的压力,并且反馈控制单元用于响应于传感器感测到的压力来控制空气阀,以便 将空气压力室中的压力保持在预设值。 燃料流量计量阀设置在从压力下的燃料源引导到进气管道的燃料供给通道中,并且计量值与空气阀互锁,使得燃料计量阀的开度成比例 到空气阀的那个。 此外,采用压力差控制单元来将燃料在燃料计量阀上的压力差保持在预设值,由此空燃混合物的空燃比独立于发动机转速保持恒定。 上述类型的燃料供给装置还包括由气缸限定的可变容积室和可滑动地设置在气缸内并与节流阀互锁的活塞。 根据用于发动机加速或减速的节流阀的操作,可变容积室中的压力变化被传递到压力差控制单元或空气阀控制单元,以校正燃料计量阀或预定压力差 在空气压力室中设定压力,由此在发动机的加速或减速期间使空燃比变得更加丰富或更稀。
    • 10. 发明授权
    • Fuel supply apparatus for internal combustion engines
    • 内燃机燃油供应装置
    • US4211201A
    • 1980-07-08
    • US900506
    • 1978-04-27
    • Masaharu SumiyoshiSetsuro SekiyaKatsuhiko MotosugiJunzo UozumiTsuneo AndoYuzo TakeuchiMikio Minoura
    • Masaharu SumiyoshiSetsuro SekiyaKatsuhiko MotosugiJunzo UozumiTsuneo AndoYuzo TakeuchiMikio Minoura
    • F02D41/34F02D3/00F02D35/00F02D41/06F02D41/18F02M69/00F02M69/22F02M69/28F02M69/32F02M69/34F02M69/38F02M69/44
    • F02D41/18F02D41/068F02M69/22F02M69/28F02M69/32F02M69/34F02M69/386F02M69/44
    • A fuel supply apparatus for an internal combustion engines comprises a throttle valve disposed in an intake conduit leading to the internal combustion engine, an air valve disposed in the intake conduit upstream of the throttle valve so as to define an air pressure chamber in the intake conduit in cooperation with the throttle valve, a device for controlling the air valve in response to the pressure prevailing in the air pressure chamber so that the pressure be maintained at a substantially constant level, and a fuel metering device including a variable throttle passage provided in a fuel feed conduit opening in the intake conduit through a fuel injection valve and interlocked with the air valve to be controlled so that the flow section area of the throttle passage may be proportional to the opening degree of the air valve, and a device for maintaining difference in pressure produced across the variable throttle passage at a predetermined value. The air valve controlling device includes a feedback control system which comprises a device for producing a signal of a level corresponding to the pressure prevailing in the air pressure chamber in the intake conduit, and a device responding to the signal for controlling the air valve so that the pressure within the air pressure chamber be maintained at a set valve, and further includes a device for automatically changing the level of the signal representative of the pressure level in the air pressure chamber in dependence on the environmental and operating conditions of the engine such as embient temperature, atmospheric pressure, engine temperature, deceleration and acceleration of the engine and the like, thereby to vary the intake air quantity to attain an optimum air-fuel ratio for the instantaneous operating condition of the engine.
    • 一种用于内燃机的燃料供应装置包括设置在通向内燃机的进气导管中的节流阀,设置在节流阀上游的进气导管中的空气阀,以便在进气管道中限定空气压力室 与节流阀协作的装置,用于响应于空气压力室中的压力控制空气阀,使得压力保持在基本上恒定的水平;以及燃料计量装置,其包括可变节流通道,其设置在 燃料供给管道通过燃料喷射阀在进气管道中打开,并与要控制的空气阀互锁,使得节流通道的流动区域面积可以与空气阀的开度成比例,以及用于保持差异的装置 在可变节流通道上以预定值产生的压力。 空气阀控制装置包括反馈控制系统,其包括用于产生与进气管道中的空气压力室中存在的压力相对应的水平的信号的装置,以及响应于用于控制空气阀的信号的装置, 空气压力室内的压力保持在一个设定的阀门,并且还包括一个装置,用于根据发动机的环境和操作条件自动地改变代表空气压力室中的压力水平的信号的水平,例如 发动机温度,发动机温度,减速度和加速度等,从而改变进气量,以获得用于发动机瞬时运转状态的最佳空燃比。