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    • 90. 发明公开
    • COMBUSTION PRESSURE CONTROLLER
    • VERBRENNUNGSDRUCKREGLER
    • EP2476885A1
    • 2012-07-18
    • EP09849247.3
    • 2009-09-11
    • Toyota Jidosha Kabushiki Kaisha
    • ASHIZAWA, Takeshi
    • F02D15/04F02B75/38F02D19/08F02P5/15
    • F02B21/00F02D35/023F02D35/027F02D41/1498
    • A combustion pressure control system of a spark ignition type of internal combustion engine which has a sub chamber 60 which is communicated with a combustion chamber 5, wherein the system is provided with a volume changing device which changes a volume of the sub chamber 60 by a change of pressure of the combustion chamber 5 serving as a driving source when the pressure of the combustion chamber 5 reaches a control pressure. The control pressure is set in a range of larger than a maximum pressure of the combustion chamber 5 in the case of suspending the supply of fuel and less than the pressure at which abnormal combustion of the fuel occurs. The volume changing device is formed so that when the pressure of the combustion chamber 5 reaches the control pressure during the period from a compression stroke to an expansion stroke of a combustion cycle, the volume of the sub chamber 60 becomes larger and a rise of the pressure of the combustion chamber 5 is suppressed.
    • 一种火花点火式内燃机的燃烧压力控制系统,其具有与燃烧室5连通的副室60,其中,该系统设置有容积改变装置,其将副室60的体积改变为 当燃烧室5的压力达到控制压力时,作为驱动源的燃烧室5的压力变化。 在燃料供给暂停的情况下,控制压力设定在大于燃烧室5的最大压力的范围内,并且小于燃料发生异常燃烧的压力。 体积变更装置形成为当从燃烧循环的压缩冲程到膨胀冲程的期间燃烧室5的压力达到控制压力时,副室60的容积变大, 燃烧室5的压力被抑制。