一、液力變矩器屬于什么傳動

傳動是指機械之間的動力傳遞，常見的傳動方式包括鏈條傳動、摩擦傳動、液壓傳動、齒輪傳動以及皮帶式傳動等，液力變矩器是(shi)汽車(che)常用的一種(zhong)傳動裝(zhuang)置，那么(me)液(ye)力(li)變矩(ju)器是(shi)什么(me)傳動呢？

液(ye)力(li)變(bian)(bian)(bian)矩(ju)器(qi)(qi)是(shi)一(yi)種以液(ye)體(ti)(ti)(ti)為工(gong)(gong)作介質的(de)非剛性(xing)變(bian)(bian)(bian)矩(ju)器(qi)(qi)，是(shi)液(ye)壓傳(chuan)(chuan)動(dong)(dong)的(de)形式之一(yi)。液(ye)力(li)變(bian)(bian)(bian)矩(ju)器(qi)(qi)有(you)一(yi)個封閉(bi)的(de)工(gong)(gong)作腔(qiang)，液(ye)體(ti)(ti)(ti)在工(gong)(gong)作腔(qiang)中循環，其(qi)中泵輪(lun)(lun)、渦輪(lun)(lun)和導(dao)輪(lun)(lun)分別與輸(shu)入軸、輸(shu)出軸和殼體(ti)(ti)(ti)連接。當動(dong)(dong)力(li)機（內燃機、電動(dong)(dong)機等。）帶動(dong)(dong)輸(shu)入軸轉(zhuan)動(dong)(dong)，液(ye)體(ti)(ti)(ti)從離心泵輪(lun)(lun)流出，依次(ci)經(jing)過渦輪(lun)(lun)、導(dao)輪(lun)(lun)再回到泵輪(lun)(lun)，周而復始循環。泵輪(lun)(lun)將(jiang)(jiang)輸(shu)入軸的(de)機械(xie)能(neng)傳(chuan)(chuan)遞(di)給液(ye)體(ti)(ti)(ti)，液(ye)體(ti)(ti)(ti)推動(dong)(dong)渦輪(lun)(lun)高速旋轉(zhuan)，將(jiang)(jiang)能(neng)量傳(chuan)(chuan)遞(di)給輸(shu)出軸。

二、液力變矩器的傳動效率高嗎

液力(li)變(bian)(bian)(bian)矩(ju)器(qi)(qi)是用(yong)油液作為介質(zhi)，把來(lai)自(zi)發(fa)動(dong)(dong)(dong)機的轉矩(ju)倍(bei)增后(hou)傳(chuan)(chuan)給自(zi)動(dong)(dong)(dong)變(bian)(bian)(bian)速箱的傳(chuan)(chuan)動(dong)(dong)(dong)裝置，很多朋(peng)友比較關心液力(li)變(bian)(bian)(bian)矩(ju)器(qi)(qi)的傳(chuan)(chuan)動(dong)(dong)(dong)效率問題，那么液力(li)變(bian)(bian)(bian)矩(ju)器(qi)(qi)的傳(chuan)(chuan)動(dong)(dong)(dong)效率高嗎(ma)？液力(li)變(bian)(bian)(bian)矩(ju)器(qi)(qi)傳(chuan)(chuan)動(dong)(dong)(dong)效率一般是多少呢？

據了解，液力變矩器的(de)傳(chuan)(chuan)動(dong)效率(lv)一(yi)般是(shi)達不到100％的(de)，因(yin)為由于(yu)(yu)泵輪(lun)與渦輪(lun)是(shi)軟性連接(jie)，渦輪(lun)的(de)速度(du)小于(yu)(yu)泵輪(lun)的(de)速度(du)，傳(chuan)(chuan)動(dong)過(guo)程中(zhong)會(hui)因(yin)為液(ye)體中(zhong)產(chan)生的(de)熱和(he)摩擦產(chan)生的(de)熱造成(cheng)一(yi)定的(de)能量損失，正常情況下，液(ye)力變矩器的(de)傳(chuan)(chuan)動(dong)效率(lv)約為95％，小于(yu)(yu)機(ji)械(xie)傳(chuan)(chuan)動(dong)的(de)傳(chuan)(chuan)動(dong)效率(lv)。

為(wei)了提(ti)(ti)高液力(li)變矩器的(de)傳(chuan)動(dong)效率(lv)(lv)，現在很多(duo)液力(li)變矩器都(dou)有鎖止離(li)合器，可(ke)以直接連接發動(dong)機(ji)和傳(chuan)動(dong)橋(qiao)以減少(shao)功率(lv)(lv)損(sun)失，從而減少(shao)使用液流(liu)間(jian)接地傳(chuan)遞功率(lv)(lv)帶來的(de)功率(lv)(lv)損(sun)失，提(ti)(ti)高傳(chuan)動(dong)效率(lv)(lv)。