摩托车的排气管可变阀门是什么?

2025-01-24 15:23:05
推荐回答(4个)
回答1:

排气阀门是一种涡轮增压式引擎系统上的从涡轮分离出废气的阀门。

其原理是当活塞下行到最低点时排气门打开,废气排出,活塞继续上行把多余的废气排出。

废气分离使得涡轮速度降低,也相应的降低了压缩机的转速。排气阀的主要功能是稳定涡轮增压系统的推进压力以保护引擎和涡轮增压器。排气阀门是由排气阀门传动装置控制的,转动装置又由进气歧管的压力控制。

扩展资料

排气量计算方法:

将汽缸断面积X冲程X汽缸数目=排气总量cc

冲程——42.5mm=4.25cm

缸径——67.0mm=6.7cm

断面积——3.35X3.35X3.1416=35.25

断面积35.25X冲程4.25X汽缸数目4=总排气量599cc

另外,大灯、左右扶手、电门、排气管排气口(最好用东西堵上)、喇叭、火化塞、空滤、蓄电池等部位最好不要用水直接冲洗,这些部位都有电路,打湿后会导致短路或者漏电,出现灯不亮、喇叭不响、不着火、行驶无力等故障,最好用抹布擦洗。

参考资料来源:百度百科——摩托车

回答2:

“可变阀门”比较容易理解,从整体外形上看,像一个简单的节气门体,该系统的工作原理是在排气管焊接这个可变阀门机构(将阀门安装在排气管系统中的适当位置,通常是安装在排气中尾段),当引擎转速较低时,阀门会关闭,让排出气流由较小管径位置或单一管路排出,保持排气管内的回压,让低转速扭力不流失;高转速时阀门则会开启,而排出的废气就会直接通过大管径位置或双重管路排出,让废气有更多的通道与出口宣泄,进而降低排气管内回压,如此一来马力的延续性会有更理想的表现。如图:


回答3:

是控制摩托车排气阻力的,通常是两冲车或者大排量4冲车的专用结构,阀门关闭可以增加发动机低转扭力,阀打开可以增加高转功率(因为排气阻力低),

回答4:

这个真没听过,可能是你排气管里的回压管坏了吧,换根排气也没多少钱

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