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    • 4. 发明授权
    • Intake system for direct fuel injection diesel engine
    • 直接燃油喷射柴油机进气系统
    • US4688532A
    • 1987-08-25
    • US738722
    • 1985-05-29
    • Shumpei Hasegawa
    • Shumpei Hasegawa
    • F02B31/02F02B3/06F02B31/00F02F1/42F02D9/02
    • F02B31/00F02F1/4228F02B2031/006F02B2275/14F02B3/06Y02T10/123Y02T10/146
    • An intake system for a direct fuel injection diesel engine is disclosed which has a cylinder block with a cylinder slidingly receiving a piston. A cylinder head is mounted on the cylinder block, and a fuel injector is adapted to directly inject fuel into a combustion chamber formed between the lower side of the cylinder head and the upper side of the piston, wherein the cylinder head has first and second intake passages which are independent of each other and which are adapted to introduce air into the combustion chamber. The first intake passage is oriented substantially tangentially to the combustion chamber and substantially orthogonally to the axis of the cylinder, and has a helical end portion opening into the combustion chamber to form a swirl of air flowing therethrough. The second intake passage is oriented such that the end portion thereof, adjacent the combustion chamber, is closer to the central axis of the cylinder than the end portion of the first intake passage adjacent the combustion chamber. The second intake passage is provided with an intake controller which prevents air from flowing in the second intake passage at low engine speeds but allows air to flow in the second intake passage at high engine speeds.
    • 公开了一种用于直接燃料喷射柴油发动机的进气系统,其具有气缸体,气缸滑动地容纳活塞。 气缸盖安装在气缸体上,并且燃料喷射器适于将燃料直接喷射到形成在气缸盖的下侧和活塞的上侧之间的燃烧室中,其中气缸盖具有第一和第二进气口 彼此独立并且适于将空气引入燃烧室的通道。 第一进气通道基本上切向于燃烧室并且基本上与气缸的轴线正交地定向,并且具有通向燃烧室的螺旋端部,以形成流过其中的空气的漩涡。 第二进气通道被定向为使得其邻近燃烧室的端部比邻近燃烧室的第一进气通道的端部更靠近气缸的中心轴线。 第二进气通道设置有进气控制器,其防止空气在低发动机转速下在第二进气通道中流动,但允许空气以高发动机转速在第二进气通道中流动。
    • 5. 发明授权
    • Method for controlling fuel supply to an internal combustion engine
after termination of fuel cut
    • 燃料切断终止后控制向内燃机供油的方法
    • US4527521A
    • 1985-07-09
    • US502082
    • 1983-06-08
    • Shumpei HasegawaNoriyuki Kishi
    • Shumpei HasegawaNoriyuki Kishi
    • F02D41/12F02D5/00
    • F02D41/126
    • A method for controlling the quantity of fuel being supplied to an internal combustion engine having a power transmission means for transmitting engine torque to vehicle wheels. The fuel quantity is controlled to a required value after termination of a fuel cut operation which is effected at deceleration of the engine, by increasing a quantity of fuel set at least as a function of intake pipe pressure by an increment which is set in synchronism with generation of pulses of a predetermined control signal. The increase of the fuel quantity is effected for a period of time after a transition of the operative state of the engine from the fuel cut operation to a normal operation wherein fuel supply is effected has been detected and before a predetermined number of pulses of the above control signal generated are generated, so long as the power transmission means remains in a disengaged state. Preferably, the above increase of the fuel quantity is effected only when the engine speed is lower than predetermined rpm. Further, the increase of the fuel quantity is prohibited while the power transmission means remains in an engaged state. Instead, while the power transmission means is in an engaged state, the fuel quantity is determined as a function of a value of intake pipe pressure which is set by subtracting a value dependent upon the engine speed from a detected value of intake pipe absolute pressure, until all the engine cylinders are supplied with fuel after the transition to the normal operation of the engine has been detected.
    • 一种用于控制供给具有用于将发动机扭矩传递到车轮的动力传递装置的内燃机的燃料量的方法。 燃料消耗量在燃料切断操作终止后被控制为在发动机的减速下实现的所需值,通过将至少与进气管压力的函数相加的燃料量增加设定为与 产生预定控制信号的脉冲。 燃料量的增加在发动机的运转状态从燃料切断运转转变为已经检测出燃料供给的正常运转之后的时间段内进行,并且在上述的预定数量的脉冲之前 只要动力传递装置保持分离状态,就产生控制信号。 优选地,仅当发动机转速低于预定转速时才能实现上述燃料量的增加。 此外,在动力传递装置保持接合状态的同时禁止燃料量的增加。 而是在动力传递装置处于接合状态的同时,根据进气管绝对压力的检测值减去取决于发动机转速的值来设定进气管压力的值的函数, 直到已经检测到发动机正常运转的转变之后所有发动机气缸都被供给燃料。
    • 6. 发明授权
    • Fuel injection control method for a multi-cylinder internal combustion
engine, having a fail safe function for abnormality in
cylinder-discriminating means
    • 用于多缸内燃机的燃料喷射控制方法,具有气缸鉴别装置中的异常故障保护功能
    • US4476830A
    • 1984-10-16
    • US521246
    • 1983-08-08
    • Shumpei HasegawaShigeo Umesaki
    • Shumpei HasegawaShigeo Umesaki
    • F02D41/22F02D41/36F02D45/00F02P7/077F02P15/00F02D17/00
    • F02D41/36F02D41/222F02P15/008F02P7/077Y02T10/44
    • A fuel injection control method for injecting fuel into a plurality of cylinders of an internal combustion engine in predetermined sequence starting from a fuel injection into a particular one of the cylinders, in synchronism with generation of pulses from crank angle position-detecting means indicative of predetermined crank angle positions of the engine, wherein when one of the cylinders which corresponds to a first pulse from the crank angle position-detecting means generated immediately after generation of a pulse from cylinder-discriminating means indicative of the above particular cylinder is other from the particular cylinder, the sequence of fuel injections into the cylinders is changed so as to effect a first fuel injection into the above particular cylinder immediately after the generation of the above pulse from the cylinder-discriminating means and then effect fuel injections into the other cylinders in the above predetermined sequence. The method is adapted to perform a fail safe function in the event of occurrence of an abnormality in the cylinder-discriminating means. The number of times of the above changing of the fuel injection sequence is counted up to a predetermined value, the cylinder-discriminating means is regarded as abnormal. Then, injection of fuel into the cylinders is effected in the above predetermined sequence in synchronism with pulses from the crank angle position-detecting means alone, irrespective of generation of subsequent pulses from the cylinder-discriminating means.
    • 一种燃料喷射控制方法,用于从指示预定的曲柄角位置检测装置的脉冲的产生同步地将燃料以预定顺序从燃料喷射到特定的一个气缸中,将燃料喷射到内燃机的多个气缸中 发动机的曲柄角位置,其中当从表示上述特定气缸的气缸鉴别装置产生脉冲之后立即产生的来自曲轴角位置检测装置的第一脉冲的一个气缸中的一个是特定的 气缸中的燃料喷射顺序发生变化,从而在从气缸鉴别装置产生上述脉冲之后立即对第一个燃料喷射到上述特定的气缸中,然后在其中的燃料喷射 超过预定顺序。 该方法适于在气缸识别装置发生异常的情况下执行故障安全功能。 燃料喷射顺序的上述变化次数被计数到预定值,气缸鉴别装置被认为是异常的。 然后,不管来自气缸识别装置的后续脉冲的产生如何,以与上述预定顺序同时进行的燃料喷射到气缸中,与来自曲柄角位置检测装置的脉冲同步进行。
    • 8. 发明授权
    • Flow rate control system for fluid being supplied to an internal
combustion engine, having initial position setting function for flow
rate control valve actuator
    • 用于向内燃机供给流体的流量控制系统,具有用于流量控制阀致动器的初始位置设定功能
    • US4380985A
    • 1983-04-26
    • US281118
    • 1981-07-07
    • Kazuo OtsukaShin NarasakaShumpei Hasegawa
    • Kazuo OtsukaShin NarasakaShumpei Hasegawa
    • F02D21/08F02D41/00F02D41/06F02D41/14F02M7/12F02M23/04F02M7/18
    • F02D41/005F02D41/0002F02D41/062Y02T10/42Y02T10/47
    • A system for control of the flow rate of a fluid being supplied to an internal combustion engine. The system includes a flow rate control valve for controlling the flow rate of a fluid being supplied to the engine, a pulse motor for driving the flow rate control valve, position detecting means for detecting the position of the flow rate control valve with respect to a reference position to produce two different levels of output, depending upon a detected valve position, and an electrical circuit responsive to the output of the position detecting means to drive the pulse motor. At the start of the engine, the electrical circuit is operable to drive the pulse motor in directions as a function of the output of the position detecting means, stopping same upon a certain change in the level of the above output, which corresponds to the reference position and hence setting it to a predetermined position preset as a function of parameters of the operating condition of the engine. The system is also provided with a function of monitoring the actual pulse motor position as well as a fail safe diagnosis function for the position detecting means and its related parts.
    • 一种用于控制供给内燃机的流体的流量的系统。 该系统包括用于控制供给发动机的流体的流量的流量控制阀,用于驱动流量控制阀的脉冲电机,位置检测装置,用于检测流量控制阀相对于 根据检测到的阀位置产生两个不同输出水平的参考位置,以及响应于位置检测装置的输出来驱动脉冲电机的电路。 在发动机开始时,电路可操作地驱动脉冲电动机作为位置检测装置的输出的方向,在上述输出的电平的一定变化上停止,这对应于参考 并且因此将其设置为根据发动机的操作条件的参数预设的预定位置。 该系统还具有监视实际脉冲电机位置以及位置检测装置及其相关部件的故障安全诊断功能的功能。