会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 1. 发明申请
    • EGR SYSTEM FOR INTERNAL COMBUSTION ENGINE AND METHOD FOR CONTROLLING THE SAME
    • 用于内燃机的EGR系统及其控制方法
    • US20100000500A1
    • 2010-01-07
    • US12440668
    • 2007-09-27
    • Hajime ShimizuMasahiro NagaeHiroyuki Haga
    • Hajime ShimizuMasahiro NagaeHiroyuki Haga
    • F02B47/08F02B33/44F01N9/00
    • F02D41/0065F02B29/0406F02D9/04F02D41/005F02D2200/1015F02M26/05F02M26/06F02M26/15F02M26/24F02M26/28F02M26/38Y02T10/47
    • An EGR system includes a high-pressure EGR passage that provides communication between an exhaust pipe, at a portion upstream of a turbine of a turbocharger, and an intake pipe, at a portion downstream of a compressor; a low-pressure EGR passage that provides communication between the exhaust pipe, at a portion downstream of the turbine, and the intake passage, at a portion upstream of the compressor; and an exhaust gas catalyst provided upstream of a position at which the low-pressure EGR passage is connected to the exhaust pipe. When an internal combustion engine is in the transitional state from the low-load operating state to the high-load operating state (S303), if incomplete combustion is detected in the internal combustion engine (S304) and the bed temperature of the exhaust gas catalyst is lower than the reference temperature (S305), the high-pressure EGR gas amount is made larger than the prescribed high-pressure EGR gas amount determined based on the operating state of the internal combustion engine (S306). Thus, an excessive decrease in the intake air temperature is suppressed, and therefore occurrence of incomplete combustion is suppressed.
    • EGR系统包括高压EGR通道,其在压缩机的下游部分处提供在涡轮增压器的涡轮机上游的排气管与进气管之间的连通; 低压EGR通道,其在所述压缩机的上游部分处,在所述涡轮机下游的所述排气管与所述进气通道之间提供连通; 以及设置在低压EGR通路与排气管连接的位置上游的废气催化剂。 当内燃机处于从低负载运行状态到高负载运转状态的过渡状态(S303)时,如果在内燃机中检测到不完全燃烧(S304)和排气催化剂的床温度 低于基准温度(S305),使高压EGR气体量比基于内燃机的运转状态确定的规定的高压EGR气体量大(S306)。 因此,能够抑制进气温度的过度降低,抑制不完全燃烧的发生。