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    In-cylinder injection type internal combustion engine
    4.
    发明授权
    In-cylinder injection type internal combustion engine 有权
    缸内喷射式内燃机

    公开(公告)号：US06386173B1

    公开(公告)日：2002-05-14

    申请号：US09559270

    申请日：2000-04-27

    申请人： Shigeo Yamamoto ,  Kazuyoshi Nakane ,  Hiroaki Miyamoto ,  Dai Tanaka ,  Jun Takemura ,  Hiromitsu Ando

    发明人： Shigeo Yamamoto ,  Kazuyoshi Nakane ,  Hiroaki Miyamoto ,  Dai Tanaka ,  Jun Takemura ,  Hiromitsu Ando

    IPC分类号： F02B1700

    CPC分类号： F02D41/3023 ,  F02D41/024 ,  F02D41/1479 ,  F02D41/3064 ,  Y02T10/26

    摘要： An electronic control unit (40) for controlling an internal combustion engine drive executes a first operation mode for injecting a fuel in a suction stroke while making an air/fuel ratio feedback control, when a demand for improving output characteristics is made in a medium/high load drive state of the engine. In response to a demand for raising the temperature of a catalyst, moreover, the first operation mode is switched to a second operation mode in which the fuel is injected in a compression stroke while making an air/fuel ratio feedback control performing a predetermined air/fuel ratio in the vicinity of a stoichiometric air/fuel ratio as a target value. At the time of switching to each of these operation modes, moreover, the air/fuel ratio correction coefficient of the air/fuel ratio feedback is increased/decreased to promote a shift of the output turning point of an O2 sensor (22) thereby to prevent such an instability of the air/fuel ratio control as is caused by the shift of the target air/fuel ratio accompanied with the switching to each operation mode. As a result, the temperature of an exhaust purifying catalyst (3) is raised in the second operation mode for performing the compression stroke injection stably in the vicinity of the stoichiometric air/fuel ratio, so that the exhaust cleaning performance can be improved and so that the output characteristics can be improved by executing the first operation mode.

    摘要翻译： 用于控制内燃机驱动的电子控制单元（40）在进行空/燃比反馈控制的同时执行用于在吸入冲程中喷射燃料的第一操作模式，当在介质/ 发动机的高负载驱动状态。 此外，响应于提高催化剂的温度的要求，第一操作模式切换到第二操作模式，其中在压缩冲程中喷射燃料，同时使空燃比反馈控制执行预定的空气/ 作为目标值的化学计量空燃比附近的燃料比。 此外，在切换到这些操作模式的每一个时，空燃比反馈的空燃比校正系数被增加/减小，以促进O2传感器（22）的输出转向点的偏移，从而 防止由于伴随着切换到每个操作模式的目标空气/燃料比的偏移而引起的空气/燃料比控制的这种不稳定性。 结果，在用于在理论空燃比附近稳定地进行压缩冲程喷射的第二操作模式中，排气净化催化剂（3）的温度升高，从而可以提高排气净化性能 可以通过执行第一操作模式来改善输出特性。

    Direct injection internal combustion engine and controlling method therefor
    5.
    发明授权
    Direct injection internal combustion engine and controlling method therefor 有权
    直喷式内燃机及其控制方法

    公开(公告)号：US06751948B2

    公开(公告)日：2004-06-22

    申请号：US09864529

    申请日：2001-05-24

    申请人： Jun Takemura ,  Kazuyoshi Nakane ,  Shigeo Yamamoto

    发明人： Jun Takemura ,  Kazuyoshi Nakane ,  Shigeo Yamamoto

    IPC分类号： F01N300

    CPC分类号： F02D37/02 ,  F02D41/024 ,  F02D41/1454 ,  F02D2041/389 ,  F02D2200/0404 ,  F02D2200/0802 ,  F02P5/1506 ,  Y02T10/26 ,  Y02T10/46

    摘要： A direct injection internal combustion engine includes catalysts for purifying exhaust gases, the catalysts being disposed in an exhaust passage of the engine. A control device controls the engine so as to warm up or activate the catalysts. The control device includes a first control part for controlling the engine with an air-fuel ratio of the engine being set at a value in proximity to a stoichiometric air-fuel ratio, an ignition timing being set at a point after a top dead center and a fuel injection timing being set within a compression stroke, and a second control part for controlling the engine with an air-fuel ratio of the engine being set at a value in proximity to a stoichiometric air-fuel ratio, with an ignition timing being set before a top dead center and a fuel injection timing being set within a compression stroke after the first control part controls the engine. The controlling operation performed by the first control part enables stable after-burning and raises the exhaust temperature. The following controlling operation of the second control part enables CO and O2 to coexist in the exhaust gases and react on the catalysts

    摘要翻译： 直喷式内燃机包括用于净化废气的催化剂，催化剂设置在发动机的排气通道中。 控制装置控制发动机以预热或活化催化剂。 控制装置包括第一控制部分，用于控制发动机的空燃比被设定在接近化学计量空燃比的值，点火正时设定在上止点之后的点，以及 设置在压缩冲程内的燃料喷射正时;以及第二控制部，用于以发动机的空燃比设定为接近理论空燃比的值来控制发动机，并设定点火正时 在第一控制部分控制发动机之前在上止点和燃料喷射正时被设定在压缩冲程之前。 由第一控制部执行的控制操作使得能够进行稳定的后燃烧，并提高排气温度。 第二控制部件的以下控制操作使CO和O 2在排气中共存并对催化剂进行反应

    DIRECT INJECTION INTERNAL COMBUSTION ENGINE
    7.
    发明申请
    DIRECT INJECTION INTERNAL COMBUSTION ENGINE 有权
    直喷式内燃机

    公开(公告)号：US20100012083A1

    公开(公告)日：2010-01-21

    申请号：US12529806

    申请日：2008-03-13

    申请人： Dai Tanaka ,  Koji Hata ,  Kazuyoshi Nakane ,  Kimihiko Sato ,  Shigeo Yamamoto

    发明人： Dai Tanaka ,  Koji Hata ,  Kazuyoshi Nakane ,  Kimihiko Sato ,  Shigeo Yamamoto

    IPC分类号： F02B5/00

    CPC分类号： F02B23/101 ,  F02B23/105 ,  Y02T10/125

    摘要： An object of the invention is to provide a direct injection internal combustion engine employing a spray guided combustion method, wherein a fuel spray injected from a fuel injection valve is collected at an electrode section of a spark plug so that satisfactorily high combustion performance may be achieved even with a small amount of injected fuel.The engine according to the invention includes spray control posts 30 arranged on both sides of the spark plug 5, for guiding the fuel injected from the fuel injection valve 4 to be directed toward the electrode section 10 of the spark plug 5.

    摘要翻译： 本发明的目的是提供一种采用喷射引导燃烧方法的直喷式内燃机，其中从燃料喷射阀喷射的燃料喷雾被收集在火花塞的电极部分，从而可以实现令人满意的高燃烧性能 即使使用少量喷射燃料。 根据本发明的发动机包括布置在火花塞5的两侧的喷雾控制杆30，用于引导从燃料喷射阀4喷射的燃料朝向火花塞5的电极部分10。

    Direct injection internal combustion engine
    8.
    发明授权
    Direct injection internal combustion engine 有权
    直喷式内燃机

    公开(公告)号：US08448624B2

    公开(公告)日：2013-05-28

    申请号：US12529806

    申请日：2008-03-13

    申请人： Dai Tanaka ,  Koji Hata ,  Kazuyoshi Nakane ,  Kimihiko Sato ,  Shigeo Yamamoto

    发明人： Dai Tanaka ,  Koji Hata ,  Kazuyoshi Nakane ,  Kimihiko Sato ,  Shigeo Yamamoto

    IPC分类号： F02B3/00 ,  F02B5/00

    CPC分类号： F02B23/101 ,  F02B23/105 ,  Y02T10/125

    摘要： A direct injection internal combustion engine employs a spray guided combustion method, wherein a fuel spray injected from a fuel injection valve is collected at an electrode section of a spark plug so that satisfactorily high combustion performance may be achieved even with a small amount of injected fuel. The engine includes spray control posts 30 arranged on both sides of the spark plug 5, for guiding the fuel injected from the fuel injection valve 4 to be directed toward the electrode section 10 of the spark plug 5.

    摘要翻译： 直喷式内燃机采用喷射式燃烧方法，其中从燃料喷射阀喷射的燃料喷雾被收集在火花塞的电极部分，使得即使使用少量喷射燃料也可以获得令人满意的高燃烧性能 。 发动机包括布置在火花塞5的两侧的喷雾控制杆30，用于引导从燃料喷射阀4喷射的燃料朝向火花塞5的电极部分10。