ink decor-none" style="text-decoration: none; color: rgb(45,100,179)"  rel="nofollow" target="_blank" log="pos:innerlink" data-word="1">排氣制動(dòng)有2種形式，1.排氣管ink decor-none" style="text-decoration: none; color: rgb(45,100,179)"  rel="nofollow" target="_blank" log="pos:innerlink" data-word="1">排氣制動(dòng)；2.發(fā)動(dòng)機(jī)ink decor-none" style="text-decoration: none; color: rgb(45,100,179)"  rel="nofollow" target="_blank" log="pos:innerlink" data-word="1">排氣制動(dòng)。
發(fā)動(dòng)機(jī)排氣制動(dòng)原理：
利用車輛本身的動(dòng)能在進(jìn)氣行程ink decor-none" style="text-decoration: none; color: rgb(45,100,179)"  rel="nofollow" target="_blank" log="pos:innerlink" data-word="0">壓縮空氣做功，在活塞上行至上止點(diǎn)時(shí)通過(guò)附加機(jī)構(gòu)將排氣門打開，把壓縮后的高溫高壓氣體排除ink decor-none" style="text-decoration: none; color: rgb(45,100,179)"  rel="nofollow" target="_blank" log="pos:innerlink" data-word="3">汽缸，避免在下一個(gè)做功行程中ink decor-none" style="text-decoration: none; color: rgb(45,100,179)"  rel="nofollow" target="_blank" log="pos:innerlink" data-word="0">壓縮空氣對(duì)活塞做功。活塞每一個(gè)工作循環(huán)需要克服摩擦阻力、ink decor-none" style="text-decoration: none; color: rgb(45,100,179)"  rel="nofollow" target="_blank" log="pos:innerlink" data-word="0">壓縮空氣阻力消耗能量，從而實(shí)現(xiàn)對(duì)車輛的制動(dòng)。
發(fā)動(dòng)機(jī)排氣制動(dòng)的效能比排氣管排氣制動(dòng)的效能要高出0.5到1倍，在低附著系數(shù)的路面上(冰雪、濕滑)要避免使用，以防驅(qū)動(dòng)輪打滑車輛失控。