渦(wo)輪(lun)增(zeng)壓(ya)器實際上是一種空(kong)氣(qi)壓(ya)縮(suo)機(ji),通過壓(ya)縮(suo)空(kong)氣(qi)來增(zeng)加進氣(qi)量。它是利用發動(dong)(dong)機(ji)排(pai)出的(de)廢氣(qi)慣性沖力(li)來推動(dong)(dong)渦(wo)輪(lun)室內的(de)渦(wo)輪(lun),渦(wo)輪(lun)又帶動(dong)(dong)同(tong)軸的(de)葉輪(lun),葉輪(lun)壓(ya)送(song)(song)由空(kong)氣(qi)濾清器管道(dao)送(song)(song)來的(de)空(kong)氣(qi),使之增(zeng)壓(ya)進入氣(qi)缸(gang)。當發動(dong)(dong)機(ji)轉速增(zeng)大,廢氣(qi)排(pai)出速度(du)與渦(wo)輪(lun)轉速也同(tong)步增(zeng)加,葉輪(lun)就壓(ya)縮(suo)更(geng)多(duo)的(de)空(kong)氣(qi)進入氣(qi)缸(gang),空(kong)氣(qi)的(de)壓(ya)力(li)和密度(du)增(zeng)大可以燃燒(shao)更(geng)多(duo)的(de)燃料(liao),相應增(zeng)加燃料(liao)量和調整發動(dong)(dong)機(ji)的(de)轉速,就可以增(zeng)加發動(dong)(dong)機(ji)的(de)輸出功率(lv)了。