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    • 1. 发明授权
    • Internal combustion engine
    • 内燃机
    • US4335687A
    • 1982-06-22
    • US160616
    • 1980-06-18
    • Fukashi SugasawaHaruhiko IizukaYukihiro EtohToshiaki Tanaka
    • Fukashi SugasawaHaruhiko IizukaYukihiro EtohToshiaki Tanaka
    • F02D41/04F02D17/02F02D41/00F02D41/02F02D41/36F02B77/00
    • F02D41/0087
    • An internal combustion engine is disclosed which comprises first and second cylinder units each including at least one cylinder, pulse generator means for generating, in synchronism with engine rotation, a fuel injection pulse signal of pulse width proportional to the rate of air flow to said engine, and first and second fuel supply means responsive to the fuel injection pulse signal for supplying, into the first and second cylinder units, respectively, a controlled amount of fuel corresponding to the duty ratio of the fuel injection pulse signal. Control means is provided for cutting off the fuel injection pulse signal to the second fuel supply means when the engine load is below a reference level increasing with an increase in engine temperature except when the engine speed is below a given level at open throttle conditions.
    • 公开了一种内燃机,其包括第一和第二气缸单元,每个气缸单元包括至少一个气缸,脉冲发生器装置,用于与发动机旋转同步地产生与向所述发动机的空气流量成比例的脉冲宽度的燃料喷射脉冲信号 以及响应于燃料喷射脉冲信号的第一和第二燃料供应装置,分别向第一和第二气缸单元提供对应于燃料喷射脉冲信号的占空比的受控量的燃料。 提供控制装置,用于当发动机负载低于基准水平时随着发动机温度升高而将燃料喷射脉冲信号切断到第二燃料供给装置,除非当发动机转速低于开启节气门条件时的给定水平时。
    • 4. 发明授权
    • Internal combustion engine
    • 内燃机
    • US4337740A
    • 1982-07-06
    • US160564
    • 1980-06-18
    • Fukashi SugasawaHaruhiko IizukaYukihiro EtohToshiaki Tanaka
    • Fukashi SugasawaHaruhiko IizukaYukihiro EtohToshiaki Tanaka
    • F02D41/04F02D17/02F02D41/00F02D41/02F02D41/36F02D43/00F02D17/00
    • F02D43/00F02D17/02F02D41/0087
    • An internal combustion engine is disclosed which includes active and inactive cylinders, a load detector adapted to provide a low load indicative signal when the engine load is below a predetermined value, first means responsive to the low load indicative signal for cutting off the flow of air to the inactive cylinders, and second means for supplying a controlled amount of fuel into the active and inactive cylinders so as to achieve a somewhat lean air-fuel mixture therein. The second means is responsive to the low load indicative signal for cutting off the supply of fuel to the inactive cylinders and increasing the amount of fuel supplied to the active cylinders so as to achieve a somewhat rich air-fuel mixture therein. Third means is provided for monitoring the oxygen content of the exhaust from the engine to control the second means so that the fuel supplied to the engine is correct to maintain the stoichiometric air/fuel ratio.
    • 公开了一种内燃机,其包括主动和非活动气缸,负载检测器,其适于在发动机负载低于预定值时提供低负荷指示信号,第一装置响应于低负荷指示信号以切断空气流 以及第二装置,用于将受控量的燃料供应到主动和非活动气缸中,以便在其中实现稍微偏冷的空气 - 燃料混合物。 第二装置响应于低负荷指示信号,用于切断对非活性气缸的燃料供应,并且增加供应到活动气缸的燃料量,以便在其中实现有些浓的空气 - 燃料混合物。 提供第三装置用于监测来自发动机的排气的氧含量以控制第二装置,使得供应到发动机的燃料是正确的,以维持理论空燃比。
    • 8. 发明授权
    • Control system for closed loop mixture correction and split engine
operation
    • 闭环混合调整和分体式发动机运行控制系统
    • US4256074A
    • 1981-03-17
    • US46309
    • 1979-06-07
    • Fukashi SugasawaYukihiro Etoh
    • Fukashi SugasawaYukihiro Etoh
    • F01N3/20F01N3/22F01N9/00F01N13/02F02D17/02F02D21/08F02D41/02F02D41/04F02D41/14F01N3/15
    • F01N3/20F01N13/009F01N9/00F02D17/02F02D41/1443F01N2430/02F01N2430/06Y02T10/47
    • A control system for a multi-cylinder internal combustion engine comprises a split engine control unit for operating the engine on partial cylinders when reduced engine power can adequately operate the vehicle, and first and second exhaust conduits for directing exhaust gases from first and second group cylinders respectively to a common junction to which a common exhaust conduit is connected for directing the gases to the atmosphere. A first set of an exhaust gas sensor and catalytic converter is disposed in the first conduit to be exposed to the stream of gases exhausted from the second group cylinders which are activated at all times and a second set of an exhaust gas sensor and catalytic converter is disposed in the common conduit to be exposed to the stream of gases exhausted from the first group cylinders directed through the first conduit and to the gases passed through the upstream side catalytic converter in the second conduit. A feedback control circuit is responsive selectively to a signal from the first gas sensor during the partial cylinder operation for correcting the ratio of mixture supplied to the second group cylinders and to a signal from the second gas sensor during the full cylinder operation for correcting the ratio of mixture supplied to all the cylinders.
    • 一种用于多气缸内燃机的控制系统,包括用于在减少的发动机功率能够充分地操作车辆时在部分气缸上操作发动机的分体式发动机控制单元,以及用于引导来自第一和第二组气缸的废气的第一和第二排气导管 分别连接到连接有公共排气导管以将气体引导到大气中的公共接头。 第一组排气传感器和催化转化器设置在第一管道中,以暴露于从第二组气缸排出的气体,其始终被激活,第二组排气传感器和催化转化器是 设置在公共管道中以暴露于从通过第一管道引导的第一组气缸排出的气体流和通过第二管道中的上游侧催化转化器的气体。 反馈控制电路在部分气缸操作期间选择性地响应来自第一气体传感器的信号,用于校正供应到第二组气缸的混合比和来自第二气体传感器的信号,用于校正比率 的混合物供应到所有气瓶。
    • 10. 发明授权
    • Split type internal combustion engine
    • 分体式内燃机
    • US4376426A
    • 1983-03-15
    • US216181
    • 1980-12-15
    • Haruhiko IizukaFukashi Sugasawa
    • Haruhiko IizukaFukashi Sugasawa
    • F02D41/04F02D17/02F02D41/00F02D41/02F02D41/36F02D17/00
    • F02D17/02F02D41/0087
    • An internal combustion engine is disclosed which comprises first and second cylinder units each including at least one cylinder, an induction passage divided downstream of the throttle valve into first and second intake passages leading to first and second cylinder units, respectively, a vacuum tank held at a vacuum above that in the induction passage downstream of the throttle valve, a stop valve provided at the entrance of the second intake passage and adapted to move toward its closed position when connected to the vacuum tank, and a control circuit adapted to block the supply of fuel to the second cylinder unit and connect the vacuum tank to the stop valve thereby shifting the engine operation into a split engine mode when the engine load is below a predetermined value. The control circuit includes means for forcing the engine operation into its full cylinder mode regardless of engine load conditions before the vacuum in the vacuum tank reaches a value sufficient to move the stop valve to its fully closed position.
    • 公开了一种内燃机,其包括第一和第二气缸单元,每个气缸单元包括至少一个气缸,分别在节流阀下游分配的第一和第二进气通道分别通向第一和第二气缸单元的进气通道, 在节流阀下游的感应通道中的真空的真空;设置在第二进气通道的入口处并适于当连接到真空罐时朝向其关闭位置移动的截止阀,以及适于阻挡供给的控制电路 的燃料连接到第二气缸单元并且将真空罐连接到截止阀,从而当发动机负载低于预定值时将发动机运转转换成分体发动机模式。 控制电路包括用于在真空罐内的真空达到足以将截止阀移动到其完全关闭位置的值之前,将发动机操作强制到其全气缸模式的装置,而不管发动机负载条件如何。