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    • 6. 发明专利
    • Engine exhaust gas purification device
    • 发动机排气净化装置
    • JP2012102651A
    • 2012-05-31
    • JP2010250962
    • 2010-11-09
    • Mitsubishi Heavy Ind Ltd三菱重工業株式会社
    • MURATA SATOSHIHIGUCHI JUN
    • F02M25/07F02B37/00F02B41/10
    • F02G5/02F02B61/04F02M26/07F02M26/23F02M26/34F02M26/35Y02T10/166
    • PROBLEM TO BE SOLVED: To provide an engine exhaust gas purification device, which reduces or eliminates the need for electric power required to raise the pressure of EGR gas, which is extracted from an upstream side of an exhaust turbosupercharger to be used for exhaust gas recirculation (EGR), after cleaning treatment by an exhaust gas cleaning unit.SOLUTION: The engine exhaust gas purification device 1 for reducing or eliminating air pollutants in exhaust gas exhausted from a main engine 10 including an exhaust turbosupercharger 20 includes: an exhaust gas cleaning device 70 for performing cleaning treatment of a part of exhaust gas introduced as EGR gas from an exhaust system L1 on an upstream side from a turbine part 21 of the exhaust turbosupercharger 20; and a recirculation exhaust turbosupercharger 60 for raising the pressure of the EGR gas which has passed through the exhaust gas cleaning device 70 by a recirculation compressor part 62 coaxial with a recirculation turbine part 61 disposed on the upstream side from the exhaust gas cleaning device 70 and driven by use of the EGR gas.
    • 解决的问题:提供一种发动机废气净化装置,其减少或消除了从排气涡轮增压器的上游侧提取的用于提高EGR气体的压力所需的电力的需要, 废气再循环(EGR),在废气净化单元进行清洁处理之后。 解决方案:用于减少或消除从包括排气涡轮增压器20的主发动机10排出的废气中的空气污染物的发动机废气净化装置1包括:废气净化装置70,用于对排气的一部分进行清洗处理 从排气涡轮增压器20的涡轮部21的上游侧的排气系统L1引入EGR气体; 以及再循环排气涡轮增压器60,用于通过与排气净化装置70的上游侧设置的再循环涡轮部61同轴的再循环压缩机部62,提高已经通过排气净化装置70的EGR气体的压力, 通过使用EGR气体驱动。 版权所有(C)2012,JPO&INPIT