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    • 21. 发明授权
    • Fuel vapor purge system for internal combustion engine and method of
diagnosis thereof
    • 用于内燃机的燃油蒸汽吹扫系统及其诊断方法
    • US5400759A
    • 1995-03-28
    • US106659
    • 1993-08-16
    • Yasuhiko Ishida
    • Yasuhiko Ishida
    • F02B77/08F02D41/00F02M25/08F02M33/02
    • F02M25/0809
    • A fuel vapor purge system for an internal combustion engine comprises a fuel tank, a purge pipe for introducing fuel vapor generated in the fuel tank into an intake passage of the engine, a purge valve installed in the piping, an engine control unit for opening the purge valve in dependence on the state in which the engine operates, a pressure sensor for detecting a pressure within the fuel tank, and an alarm being operative under the control of the engine control unit. The engine control unit opens the purge valve for a first predetermined period when the engine operation is in a steady state, makes decision as to occurrence of an abnormality in the purge system on the basis of a magnitude of change in the internal pressure of the fuel tank over a second predetermined period covering the first predetermined period, and activates the alarm when occurrence of an abnormality is determined.
    • 一种用于内燃机的燃料蒸汽吹扫系统包括燃料箱,用于将在燃料箱中产生的燃料蒸气引入发动机的进气通道中的净化管,安装在管道中的净化阀,用于打开 取决于发动机运转的状态的排气阀,用于检测燃料箱内的压力的压力传感器,以及在发动机控制单元的控制下操作的报警器。 发动机控制单元在发动机运转处于稳定状态的第一预定时段内打开净化阀,根据燃料内部压力的变化幅度来确定吹扫系统中的异常发生 在超过第一预定时间段的第二预定时间段内,确定发生异常时激活报警。
    • 25. 发明授权
    • Split operation type multi-cylinder internal combustion engine
    • 分体式多缸内燃机
    • US4200083A
    • 1980-04-29
    • US949540
    • 1978-10-10
    • Yasuhiko Ishida
    • Yasuhiko Ishida
    • F02D9/02F02D17/02F02M13/02F02M13/04F02D17/00
    • F02M13/023F02D17/02F02M13/046
    • Disclosed is a split operation type internal combustion engine having a plurality of cylinders which are divided into a first cylinder group and a second cylinder group. The cylinders of the first cylinder group are connected to a first common intake manifold equipped with a first carburetor, and the cylinders of the second cylinder group are connected to a second common intake manifold equipped with a second carburetor. The second intake manifold is connected to the atmosphere via a bypass passage, and an air valve is arranged in the bypass passage. A first gear actuated by the accelerator pedal is operatively connected to the first throttle valve of the first carburetor and intermittently engaged with a second gear connected to the second throttle valve of the second carburetor. The firing operation is always carried out in the first cylinder group. When the level of the vacuum produced in the first intake manifold is greater than a predetermined level, the second throttle valve remains closed, and the air valve remains fully opened. At this time, air is fed into the second cylinder group. When the level of the vacuum produced in the first intake manifold is reduced below the predetermined level, the first gear comes into engagement with the second gear for opening the second throttle valve and, at the same time, the air valve is closed so that the firing operation is started in the second cylinder group.
    • 本发明公开了一种具有分为第一气缸组和第二气缸组的多个气缸的分体式内燃机。 第一气缸组的气缸连接到配备有第一化油器的第一公共进气歧管,并且第二气缸组的气缸连接到配备有第二化油器的第二公共进气歧管。 第二进气歧管通过旁路通路连接到大气,并且旁通通道中设置有空气阀。 由加速器踏板致动的第一齿轮可操作地连接到第一化油器的第一节流阀,并与与第二化油器的第二节流阀连接的第二齿轮间歇地接合。 在第一气缸组中始终进行点火操作。 当在第一进气歧管中产生的真空度大于预定水平时,第二节流阀保持关闭,空气阀保持完全打开。 此时,空气被送入第二气缸组。 当在第一进气歧管中产生的真空度降低到预定水平以下时,第一齿轮与第二齿轮接合以打开第二节流阀,并且同时关闭空气阀,使得 在第二气缸组中开始点火操作。
    • 26. 发明授权
    • Exhaust gas purification apparatus for an internal combustion engine
    • 内燃机用废气净化装置
    • US4175386A
    • 1979-11-27
    • US772277
    • 1977-02-25
    • Eturou KatahiraShunzo YamaguchiMasashi KidaYasuhiko Ishida
    • Eturou KatahiraShunzo YamaguchiMasashi KidaYasuhiko Ishida
    • F01N3/22F01N3/10
    • F01N3/222F01N3/22F01N3/227
    • A secondary air supply pipe line is opened in the exhaust pipe of an internal combustion engine on the upstream side of an exhaust gas reactor which is mounted in the exhaust pipe, and an air-fuel ratio sensor for detecting the air-fuel ratio of exhaust gases is mounted in the exhaust pipe on the downstream side of the portion where the secondary air supply pipe line is open. An air flow control valve for on-off controlling the flow of air in the secondary air supply pipe line is operated in accordance with the output signal of the air-fuel ratio sensor. When the air-fuel ratio of the exhaust gases is low the secondary air supply pipe line is fully opened by the air flow control valve in response to the output signal of the air-fuel ratio sensor, whereas when the air-fuel ratio of the exhaust gases is high the secondary air supply pipe line is fully closed by the air flow control valve in response to the output signal of the air-fuel ratio sensor, whereby maintaining the air-fuel ratio of exhaust gases supplied to the exhaust gas reactor at a predetermined value.
    • 二次空气供给管路在安装在排气管的排气反应器的上游侧的内燃机的排气管内开放,空气燃料比传感器,用于检测排气的空燃比 气体在二次空气供给管路打开的部分的下游侧安装在排气管中。 根据空燃比传感器的输出信号,操作用于开关控制二次空气供给管路中的空气流的气流控制阀。 当排气的空燃比低时,响应于空燃比传感器的输出信号,二次空气供给管线被空气流量控制阀完全打开,而当空燃比 废气高,响应于空燃比传感器的输出信号,二次空气供给管路被空气流量控制阀完全关闭,由此维持供给排气反应器的废气的空燃比 预定值。
    • 28. 发明授权
    • Fuel pump control apparatus of engine
    • 发动机燃油泵控制装置
    • US09284907B2
    • 2016-03-15
    • US13273764
    • 2011-10-14
    • Yohei YamaguchiYasuhiko Ishida
    • Yohei YamaguchiYasuhiko Ishida
    • F02D41/30F02D41/24F02D41/20
    • F02D41/3082F02D41/2464F02D2041/2027
    • By driving a fuel pump suitably to an amount of fuel according to an amount of fuel consumed by an engine and by monitoring an actual motor speed of the fuel pump, F/B control is carried out according to a target motor speed and the actual motor speed of the fuel pump. Meanwhile, by learning and storing a duty value comparable to a deviation between the target and actual motor speeds, duty driving of the fuel pump is corrected to suit an engine condition. It thus becomes possible to provide a fuel pump control apparatus of an engine capable of promoting power saving by suppressing a wasteful energy loss including a current consumption and making an internal circuit of an ECU simpler by enhancing fuel supply accuracy.
    • 通过根据发动机消耗的燃料量适当地驱动燃料泵至燃料量,并且通过监视燃料泵的实际电动机速度,根据目标电动机速度和实际电动机进行F / B控制 燃油泵的速度。 同时,通过学习和存储与目标和实际电动机速度之间的偏差相当的负载值,校正燃油泵的负荷驱动以适应发动机状态。 因此,通过提高燃料供给精度,能够提供能够通过抑制包括电流消耗的浪费的能量损失并且使ECU的内部电路更简单的方式来提供能够促进节电的燃料泵控制装置。
    • 29. 发明授权
    • Control apparatus for general purpose engine
    • 通用发动机控制装置
    • US09267458B2
    • 2016-02-23
    • US13567379
    • 2012-08-06
    • Ryo SakaguchiYasuhiko Ishida
    • Ryo SakaguchiYasuhiko Ishida
    • G01M15/11F02D41/34F02D41/04F02D41/22F02D41/14
    • F02D41/042F02D41/1454F02D41/22F02D41/34F02D2200/1015G01M15/11Y02T10/44
    • A general purpose engine control apparatus can detect misfire occurrence with high accuracy, while reducing adaptation man hours of misfire determination. The apparatus includes a first air/fuel ratio determiner to make a rich/lean determination, an injection amount corrector to calculate a corrected injection amount corresponding to a stoichiometric air/fuel ratio, an injection controller to supply fuel to the engine so as to match the corrected injection amount, a second air/fuel ratio determiner to make a rich/lean determination based on a comparison of the O2 sensor output with a rich and a lean determination voltage, a rich/lean period calculator to calculate a rich/lean period according to the determination of the second air/fuel ratio determiner, and a misfire determiner to determine the presence or absence of a misfire based on the rich/lean period. The injection controller stops fuel injection to the engine in the presence of a misfire.
    • 通用发动机控制装置可以高精度地检测失火发生,同时减少适应时间的失火确定。 该装置包括用于进行浓/稀气测定的第一空气/燃料比确定器,用于计算对应于理论空燃比的校正喷射量的喷射量校正器,向发动机供应燃料以匹配的喷射控制器 校正喷射量,第二空气/燃料比确定器,用于基于具有浓度和稀薄确定电压的O2传感器输出的比较来进行浓/稀薄测定;富/贫时期计算器,用于计算富/稀期间 根据第二空气/燃料比确定器的确定,以及基于富/贫时期确定是否存在失火的失火确定器。 注射控制器在发生失火的情况下停止对发动机的燃料喷射。