上菲紅歐四歐五發(fā)動機排放培訓(xùn)資料(編輯修改稿)
2025-02-07 19:23 本頁面
【文章內(nèi)容簡介】 2 …. from “Euro 3” to Euro 4 ….. 從歐 3到歐 4 NOx (g/kWh) PM (g/kWh) Starting Point Euro 3 歐 3起點 5 EURO 4 3,5 26 June 2022 13 Engine development 發(fā)動機技術(shù)發(fā)展 NOX PM Fuel Consumption燃油消耗 Engine adjustments NOx reduction ? increase PM and fuel consumption PM reduction ? reduce fuel consumption but NOx increase 26 June 2022 14 The technology choice 技術(shù)選擇 ? Two possible solutions兩種可能的解決方案 : EGR SCR Exhaust Gas Recirculation 廢氣再循環(huán) Selective Catalytic Reduction 選擇性催化轉(zhuǎn)化器 26 June 2022 15 EGR: to match Euro 4 匹配歐 4 EGR NOx (g/kWh) PM (g/kWh) Starting Point Euro 3起點歐 3 5 EURO 4 3,5 26 June 2022 16 EGR: to match Euro 4 匹配歐 4 NOx (g/kWh) PM (g/kWh) Starting Point Euro 3起點歐 3 5 EURO 4 3,5 PM Filter EGR 26 June 2022 17 SCR: to match Euro 4 匹配歐 4 NOx (g/kWh) PM (g/kWh) Starting Point Euro 3歐 3起點 5 EURO 4 3,5 SCR 26 June 2022 18 SCR: to match Euro 4 匹配歐 4 NOx (g/kWh) PM (g/kWh) Starting Point Euro 3起點歐 3 5 3,5 EURO 4 SCR SCR 26 June 2022 19 SCR: to match Euro 5 匹配歐 5 NOx (g/kWh) PM (g/kWh) Starting Point Euro 3起點歐 3 5 3,5 EURO 4 EURO 5 2 SCR SCR 26 June 2022 20 EGR valve EGR technology EGR技術(shù) PM Filter ? EGR system effects emissions at source, in the bustion chamber EGR系統(tǒng)在源頭解決排放 ,在燃燒室內(nèi) 26 June 2022 21 ? Exhaust gas is forced through porous ceramic cell排氣強制通過多孔蜂窩狀陶瓷 ? Walls外殼 ? Closed filter structure封閉式濾芯結(jié)構(gòu) ? Efficiency up to 80%效率上限 80% ? Combination with Oxi – cat 與氧化型催化轉(zhuǎn)化器結(jié)合 PM Filter = PM Trap = DPF 26 June 2022 22 PM Trap: two possible offers 兩種可能的提議 Standard Version標(biāo)準(zhǔn)版 ? Filter unit to be replaced 過濾器單元被取代 ? Maintenance intervals required 必要的間隔維護(hù) CRT Continuously Regenerating Trap 連續(xù)再生式顆粒捕集器 ? Permanent PM bustion 永久的顆粒燃燒 ? No maintenance required 免維護(hù) Car application客車應(yīng)用 Truck application卡車應(yīng)用 26 June 2022 23 ? A part of the exhaust gas is led through the metal部分排氣通過金屬 ? fleece, the rest is bypassing the fleece 其余通過編織物 ? Open cell structure開放式蜂窩結(jié)構(gòu) ? No maintenance免維護(hù) ? Efficiency up to 50%效率上限 50% ? Combination with Oxi – cat 與氧化型催化轉(zhuǎn)化器結(jié)合 PM Cat 顆粒催化轉(zhuǎn)化器 26 June 2022 24 Comparison: PM Trap vs. PM Cat 顆粒捕集器與顆粒催化轉(zhuǎn)化器比較 Disadvantage缺點 ? Backpressure increase排氣背壓增加 ? Ash accumulation灰聚集 ? Pack
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