发明公开
- 专利标题: ARRANGEMENT AND METHOD FOR EXHAUST GAS RECIRCULATION AND TURBOCHARGING
- 专利标题(中): 安排和方法排气回收和涡轮增压
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申请号: EP11724693.4申请日: 2011-05-09
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公开(公告)号: EP2569524A1公开(公告)日: 2013-03-20
- 发明人: WIK, Christer , RISTIMÄKI, Jyrki
- 申请人: Wärtsilä Finland Oy
- 申请人地址: Tarhaajantie 2 65380 Vaasa FI
- 专利权人: Wärtsilä Finland Oy
- 当前专利权人: Wärtsilä Finland Oy
- 当前专利权人地址: Tarhaajantie 2 65380 Vaasa FI
- 代理机构: Veräjänkorva, Janne
- 优先权: FI20105524 20100512
- 国际公布: WO2011141631 20111117
- 主分类号: F02B29/04
- IPC分类号: F02B29/04 ; F02M25/07 ; F02B37/013
摘要:
An arrangement for exhaust gas recirculation and turbocharging for an internal combustion engine comprising a low-pressure turbocharger (3) and a high-pressure turbocharger (4), an exhaust gas recirculation duct (5) having its starting point in an exhaust gas duct (2) upstream from the turbine (4a) of the high-pressure turbocharger(4)and its end point in an air intake duct (1) between the compressors(3b, 4b)of the turbochargers (3, 4), a control valve(6)for controlling the amount of exhaust gas to be recirculated, and a cooler (7) for the in take air located in the air intake duct (1) between the compressors (3b, 4b) of the turbochargers(3, 4). The arrangement also comprises a scrubber (10) for cleaning the recirculated exhaust gas before the exhaust gas enters the compressor (4b) of the high-pressure turbocharger(4). The invention also relates to a method for exhaust gas recirculation and turbocharging.
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