头段功效
Head effect排氣系統中的大部分阻力都來自於三元催化器,尤其在國內進入新的國六排放標準,原廠車由於對排放的標準十分嚴謹,往往會增加頭段上觸媒的數量而且使用阻力較大的陶瓷催化使聲音更加難以釋放。所以在更換排氣時,三元催化頭段的改裝也是需要著重考慮的。
Most of the exhaust system resistance comes from the ternary catalysts, especially in the domestic into six new countries emissions standards, original car because of emissions standards is very rigorous, tend to increase the number of head section on the catalyst and the use of larger resistance ceramic catalytic make sounds more difficult to release. So in replacing exhaust, ternary catalytic modification of the first paragraph is also need to think about it.頭段的功效主要來自其中的三元。相對來說,三元越密過濾尾氣的效率越高,同時消音效果也越好,但弊端是發動機廢氣排放不暢,缸內會殘留部分廢氣,降低缸內含氧量從而限制部分動力。
The effect of head section mainly from three yuan. , three yuan are relatively dense filter exhaust efficiency higher and higher, at the same time the silencing effect is better, but the disadvantages are poor engine exhaust emissions, will remain part of exhaust gas in cylinder, the lower cylinder containing oxygen limiting part.
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