Exhaust Manifold
排气从缸盖流经排气歧管，然后流到涡轮增压器和排气旁通阀。 排气歧管有两种： 干式 和 水冷。
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| 图 1 | g01046218 |
干式排气歧管 | |
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| 图 2 | g01046347 |
剖面A-A | |
干式排气歧管可向涡轮机提供最大热量。 排气歧管使用软性包套隔热。 这种隔热处理有助于保持排气系统中的热量不被散发。 这种隔热处理也有助于保护排气系统以外的部件，以防其受热。
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| 图 3 | g01046378 |
软性包套 | |
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软性包套必须时刻包裹在排气歧管上。 软性包套可防止接线被烤着燃烧。 软性包套也可防止油管和水管被加热。 |
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| 图 4 | g01046223 |
水冷排气歧管 | |
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| 图 5 | g01046298 |
剖面 B-B (1) 水道 (2) 气隙 (3) 排气气道 | |
水冷排气歧管有助于减少从排气系统散发的热量。 排气歧管和水歧管组合在一起。 在冷却液从水温调节器流到缸盖之际，冷却液也同时冷却流经排气歧管的排气。
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