Exhaust gas recirculation system
    1.
    发明授权
    Exhaust gas recirculation system 失效
    废气再循环系统

    公开(公告)号:US4233946A

    公开(公告)日:1980-11-18

    申请号:US28765

    申请日:1979-04-09

    IPC分类号: F02D9/02 F02M25/07 F02M25/06

    摘要: An exhaust gas recirculation system for cleaning exhaust gas from an internal combustion engine is provided in which a variable constriction is provided between an intake pipe and a pressure control valve in operative connection to a throttle valve in the carburetor and the pressure differential across said variable constriction is maintained constant to keep off any influence of the exhaust gas pressure while the ratio of the exhaust gas flow rate to the air intake into the engine is varied in correspondence to the intake pipe negative pressure. This exhaust gas recirculation system can be adapted to a fuel injection type intake system as well as other intake systems provided with an air valve for regulating air intake or having no venturi constriction such as employed in an SU type carburetor.

    摘要翻译: 提供了一种用于净化内燃机废气的排气再循环系统,其中在进气管和压力控制阀之间设有可变的收缩管,其与化油器中的节流阀有效连接,并且所述可变收缩管 保持恒定以防止排气压力的影响,同时排气流量与进入发动机的进气口的比率对应于进气管负压而变化。 这种废气再循环系统可以适用于燃料喷射式进气系统以及设置有用于调节进气口的空气阀或者没有诸如在SU型化油器中使用的文氏管压缩的其它进气系统。

    Fuel injection valve
    2.
    发明授权
    Fuel injection valve 失效
    燃油喷射阀

    公开(公告)号:US4720077A

    公开(公告)日:1988-01-19

    申请号:US942685

    申请日:1986-12-22

    CPC分类号: F02M51/005 F02M51/0607

    摘要: A fuel injection valve using a stacked piezoelectric ceramics displacement magnifying device as a valve actuator. The piezoelectric actuator comprises a stacked piezoelectric ceramics expandable upon application of an electric field thereto; a lever member having a base portion fixed to the central portion of the casing, an inner portion contacting with an end of the stacked piezoelectric ceramics and receiving an expansion force from the stacked piezoelectric ceramics, a fulcrum portion fixed to the base portion, and at least two outer portions adapted to be outwardly displaced when the inner portion receives the expansion force from the stacked piezoelectric ceramics; and a flexing member formed of an elastic material and connected at its both ends to the outer portions of the lever member under the condition where a central portion thereof is flexed frontwardly, the central portion of the flexing member being connected to a rear end of the valve body.

    摘要翻译: 一种使用堆叠压电陶瓷位移放大装置作为阀致动器的燃料喷射阀。 压电致动器包括在施加电场时可膨胀的层叠压电陶瓷; 杠杆部件,其具有固定在壳体的中心部的基部,与层叠的压电陶瓷的端部接触的内部,并且从堆叠的压电陶瓷接收膨胀力,固定到基部的支点部和 当内部部分接收来自堆叠的压电陶瓷的膨胀力时,适于向外移位的至少两个外部部分; 以及由弹性材料形成并且在其中心部分向前弯曲的状态下在其两端连接到杠杆构件的外部的弯曲构件,弯曲构件的中心部分连接到杆的后端 阀体。

    Fuel supply apparatus for internal combustion engines
    3.
    发明授权
    Fuel supply apparatus for internal combustion engines 失效
    内燃机燃油供应装置

    公开(公告)号:US4253440A

    公开(公告)日:1981-03-03

    申请号:US922852

    申请日:1978-07-07

    摘要: 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.

    摘要翻译: 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。

    Fuel supply apparatus for internal combustion engines
    4.
    发明授权
    Fuel supply apparatus for internal combustion engines 失效
    内燃机燃油供应装置

    公开(公告)号:US4211201A

    公开(公告)日:1980-07-08

    申请号:US900506

    申请日:1978-04-27

    摘要: 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.

    摘要翻译: 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。

    Air-fuel ratio control system for an internal combustion engine
    5.
    发明授权
    Air-fuel ratio control system for an internal combustion engine 失效
    用于内燃机的空燃比控制系统

    公开(公告)号:US4194478A

    公开(公告)日:1980-03-25

    申请号:US900011

    申请日:1978-04-25

    摘要: A fuel supply apparatus for an internal combustion engine comprises an air valve disposed in an intake air conduit upstream of a throttle valve and caused to rotate in accordance with the quantity of intake air through the intake conduit, a fuel supply source for supplying fuel under a substantially constant pressure through a fuel feed conduit to a fuel discharge port opened to the intake conduit, and a fuel metering device including a variable slit provided in the fuel feed conduit and interlocked with the air valve to be controlled such that the flow area of the variable slit may be proportional to the quantity of intake air and a fuel differential device for maintaining pressure difference across the variable slit at a predetermined value. The fuel pressure differential device comprises a first pressure chamber applied with a fuel pressure prevailing at the downstream side of the variable slit, a second pressure chamber having a constant pressure difference relative to the first pressure chamber and a constant differential pressure valve disposed in the fuel feed conduit downstream of the variable slit for controlling the pressure at the downstream side of the variable throttle passage to have the aforementioned pressure difference relative to the second pressure chamber. Further the pressure of the second pressure chamber is arranged to be automatically varied dependent on environmental and operating conditions of the engine such as atmospheric pressure, ambient temperature, engine temperature, acceleration and deceleration of the engine, whereby the pressure difference across the variable slit is varied so as to correct the air-fuel ratio.

    摘要翻译: 一种用于内燃机的燃料供给装置,其特征在于,具备:空气阀,其配置于节流阀的上游侧的吸入空气管道内,并根据通过所述吸气管的吸入空气量而旋转;燃料供给源, 基本恒定的压力通过燃料供给导管连接到通向进气管道的燃料排放口,以及燃料计量装置,其包括设置在燃料供给导管中并与要控制的空气阀互锁的可变狭缝, 可变狭缝可以与进气量成比例,以及用于将可变狭缝两端的压差保持在预定值的燃料差速装置。 燃料压差装置包括施加有在可变狭缝的下游侧的燃料压力的第一压力室,相对于第一压力室具有恒定压力差的第二压力室和设置在燃料中的恒定差压阀 用于控制可变节流通道下游侧的压力的可变狭缝下游的进料导管相对于第二压力室具有上述压力差。 此外,第二压力室的压力被设置为根据发动机的环境和操作条件(例如大气压力,环境温度,发动机温度,发动机的加速和减速)而自动变化,由此可变狭缝两端的压差为 变化以校正空燃比。

    Air-fuel ratio control device of a variable venturi-type carburetor
    6.
    发明授权
    Air-fuel ratio control device of a variable venturi-type carburetor 失效
    可变文丘里型化油器的空燃比控制装置

    公开(公告)号:US4457279A

    公开(公告)日:1984-07-03

    申请号:US405274

    申请日:1982-08-04

    CPC分类号: F02D41/08 F02M7/17 F02M7/24

    摘要: A variable venturi-type carburetor comprising a main fuel passage which is open to the intake passage of the carburetor. An air bleed passage is connected to the main fuel passage. The inlet of the air bleed passage is divided into a first passage and a second passage. A first control valve and a first jet are arranged in the first passage. A second control valve and a second jet are arranged in the second passage. The second jet has a flow area which is larger than that of the first jet. The first control valve opens the first passage only when the engine is operating under an idling state. The second control valve opens the second passage only during the cruising operation of a vehicle.

    摘要翻译: 一种可变的文丘里型化油器,包括对化油器的进气通道开放的主燃料通道。 排气通道连接到主燃料通道。 排气通道的入口被分成第一通道和第二通道。 第一控制阀和第一喷射器布置在第一通道中。 第二控制阀和第二喷射器布置在第二通道中。 第二喷射器具有大于第一射流的流动面积。 第一控制阀仅在发动机在怠速状态下运行时打开第一通道。 第二控制阀仅在车辆的巡航操作期间打开第二通道。

    Fuel supplying device for use in fuel injection type internal combustion
engine
    7.
    发明授权
    Fuel supplying device for use in fuel injection type internal combustion engine 失效
    用于燃油喷射型内燃机的燃料供应装置

    公开(公告)号:US4294213A

    公开(公告)日:1981-10-13

    申请号:US56310

    申请日:1979-07-10

    摘要: 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.

    摘要翻译: 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。

    Internal combustion engine
    8.
    发明授权
    Internal combustion engine 失效
    内燃机

    公开(公告)号:US4206599A

    公开(公告)日:1980-06-10

    申请号:US939984

    申请日:1978-09-06

    摘要: An internal combustion engine has a secondary air supply system and a fuel injection system including a two-fluid injection nozzle operative to inject air and fuel both under pressure into engine intake system. The secondary air supply system includes an air pump and a secondary air supply line extending between the pump and the engine exhaust system. The two-fluid injection nozzle is pneumatically connected to an air distributor provided on the secondary air supply line whereby pressurized air from the air pump is also supplied to the two-fluid injection nozzle and injected thereby together with the fuel to facilitate atomization of the injected fuel as well as to supercharge the engine.

    摘要翻译: 内燃机具有二次空气供应系统和燃料喷射系统,该系统包括双向喷射喷嘴,该二流体喷射喷嘴可操作以将空气和燃料在压力下喷射到发动机进气系统中。 二次空气供应系统包括在泵和发动机排气系统之间延伸的气泵和二次空气供应管线。 双流体注射喷嘴气动地连接到设置在二次空气供应管线上的空气分配器,由此来自空气泵的加压空气也被供应到双流体喷射喷嘴并且由此与燃料一起喷射,以便于喷射的雾化 燃料以及对发动机进行增压。

    Method of controlling injector
    9.
    发明授权
    Method of controlling injector 失效
    控制注射器的方法

    公开(公告)号:US4798188A

    公开(公告)日:1989-01-17

    申请号:US126638

    申请日:1987-11-30

    摘要: In an injector for intermittently injecting liquid fuel by supplying a pulse signal to an actuator for reciprocating a valve body, a method of controlling the injector comprises the steps of changing the width of the pulse signal to thereby control an open time of the injector, and also changing a voltage of the pulse signal to thereby control a stroke of the valve body.

    摘要翻译: 在用于通过向用于使阀体往复运动的致动器提供脉冲信号来间歇地喷射液体燃料的喷射器中,控制喷射器的方法包括以下步骤:改变脉冲信号的宽度从而控制喷射器的打开时间;以及 也改变脉冲信号的电压从而控制阀体的行程。

    Exhaust gas recirculating device
    10.
    发明授权
    Exhaust gas recirculating device 失效
    废气循环装置

    公开(公告)号:US4282846A

    公开(公告)日:1981-08-11

    申请号:US64261

    申请日:1979-08-06

    申请人: Mikio Minoura

    发明人: Mikio Minoura

    摘要: An exhaust gas recirculating device having a regulator integrally formed with an air horn of the carburetor, a throttle body and an insulator, both secured to a carburetor flange, a groove cut on the underside of the carburetor flange, a plate interposed between the flange and the suction manifold, said groove and plate forming an exhaust gas recirculating passage, a variable throttle valve, a throttle valve, and a link means interconnecting the variable throttle valve and the throttle valve, whereby exhaust gas from the engine is recirculated to downstream of the throttle valve. With this invention the exhaust gas recirculating device can be incorporated into conventional carburetors with minor modifications on the carburetor.

    摘要翻译: 一种废气再循环装置,其具有与化油器的空气喇叭,节气门体和绝缘体一体形成的调节器,两者均固定在化油器法兰上,在化油器法兰的下侧切割的槽,插入在凸缘和 抽吸歧管,所述槽和板形成废气再循环通道,可变节流阀,节流阀和将可变节流阀和节流阀互连的连杆装置,由此来自发动机的废气再循环到 节流阀。 利用本发明,排气再循环装置可以并入传统的化油器中,对化油器进行了微小的修改。