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    Engine control method and apparatus
    3.
    发明授权
    Engine control method and apparatus 有权
    发动机控制方法和装置

    公开(公告)号：US08783227B2

    公开(公告)日：2014-07-22

    申请号：US13012406

    申请日：2011-01-24

    申请人： Masahisa Yamakawa ,  Kouhei Iwai ,  Shuji Oba

    发明人： Masahisa Yamakawa ,  Kouhei Iwai ,  Shuji Oba

    IPC分类号： F02B3/06 ,  F02B3/08 ,  F02D35/02

    CPC分类号： F02B3/06 ,  F02B3/08 ,  F02B29/0437 ,  F02B2075/125 ,  F02D13/0211 ,  F02D13/0238 ,  F02D13/0265 ,  F02D13/0269 ,  F02D15/04 ,  F02D35/023 ,  F02D35/026 ,  F02D41/0007 ,  F02D41/0057 ,  F02D41/006 ,  F02D41/3035 ,  F02M26/01 ,  Y02T10/142 ,  Y02T10/47

    摘要： An engine is designed to allow a compression self-ignition combustion under an air-fuel ratio leaner than a stoichiometric air-fuel ratio to be performed at least in a partial-load range of the engine. Under a condition that an engine speed varies at a same load in an engine operating region of the compression self-ignition combustion, a compression end temperature Tx, which is an in-cylinder temperature just before an air-fuel mixture self-ignites, is controlled to be raised higher in a higher engine speed side than in a lower engine speed side. As one example of control for the compression end temperature Tx, an internal EGR amount is controlled to be increased larger in the higher engine speed side than in the lower engine speed side, to raise a compression initial temperature T0 which is an in-cylinder temperature at a start timing of a compression stroke. This makes it possible to perform the compression self-ignition combustion under a lean air-fuel ratio in a wider engine speed range to effectively enhance engine thermal efficiency.

    摘要翻译： 发动机被设计成允许至少在发动机的部分负荷范围内执行在比理论空燃比稀薄的空燃比下的压缩自点火燃烧。 在压缩自点火燃烧的发动机运转区域内的发动机转速相同的负荷条件下，作为空燃混合气自燃之前的缸内温度的压缩端温度Tx为 控制在较高的发动机转速侧比在较低的发动机转速侧升高。 作为对压缩端温度Tx的控制的一个例子，在较高的发动机转速侧的内部EGR量被控制为比在较低的发动机转速侧更大，以提高作为缸内温度的压缩初始温度T0 在压缩冲程的开始时刻。 这使得可以在更宽的发动机转速范围内以稀薄空燃比进行压缩自点火燃烧，以有效地提高发动机的热效率。

    Internal combustion engine
    6.
    发明授权
    Internal combustion engine 失效
    内燃机

    公开(公告)号：US3960119A

    公开(公告)日：1976-06-01

    申请号：US533706

    申请日：1974-12-17

    申请人： Panayotis C. Dimitracopoulos

    发明人： Panayotis C. Dimitracopoulos

    IPC分类号： F02B3/08 ,  F02B19/14 ,  F02B23/00

    CPC分类号： F02B3/08 ,  F02B19/14 ,  Y02T10/125

    摘要： In an internal combustion engine, large droplets of heavy fuel are injected in the combustion chamber in the presence of excess air and preferably under low pressure. The mixture of excess air and droplets of fuel is compressed and thereby forced to pass at high velocity through a vortex throat (i.e. small orifice) into an ignition chamber, where the friction between droplets and air causes self-ignition of the surface layers of the droplets. The combustion gases force the burning droplets, through the vortex throat, back into the combustion chamber under high velocity, thereby the burning surfaces of the droplets continuously come in contact with fresh supplies of air, until they burn substantially completely.

    摘要翻译： 在内燃机中，在存在过量空气的情况下，优选在低压下，将大量重油燃料喷入燃烧室。 过多的空气和燃料液滴的混合物被压缩，从而被迫以高速通过涡流喉管（即小孔口）进入点火室，其中液滴和空气之间的摩擦导致自燃 液滴。 燃烧气体迫使燃烧的液滴通过涡流喉道以高速回到燃烧室，从而液滴的燃烧表面不断地与新鲜的空气接触，直到它们基本上完全燃烧。