轉(zhuan)(zhuan)(zhuan)(zhuan)向(xiang)(xiang)(xiang)(xiang)機(ji)(ji)總成即轉(zhuan)(zhuan)(zhuan)(zhuan)向(xiang)(xiang)(xiang)(xiang)器(qi)(qi),又(you)名轉(zhuan)(zhuan)(zhuan)(zhuan)向(xiang)(xiang)(xiang)(xiang)機(ji)(ji)、方(fang)向(xiang)(xiang)(xiang)(xiang)機(ji)(ji),它是(shi)(shi)轉(zhuan)(zhuan)(zhuan)(zhuan)向(xiang)(xiang)(xiang)(xiang)系中最重要的(de)(de)部件(jian)。它的(de)(de)作用是(shi)(shi):增大轉(zhuan)(zhuan)(zhuan)(zhuan)向(xiang)(xiang)(xiang)(xiang)盤(pan)傳(chuan)(chuan)到(dao)轉(zhuan)(zhuan)(zhuan)(zhuan)向(xiang)(xiang)(xiang)(xiang)傳(chuan)(chuan)動(dong)(dong)機(ji)(ji)構的(de)(de)力(li)(li)和改變(bian)力(li)(li)的(de)(de)傳(chuan)(chuan)遞方(fang)向(xiang)(xiang)(xiang)(xiang)。轉(zhuan)(zhuan)(zhuan)(zhuan)向(xiang)(xiang)(xiang)(xiang)器(qi)(qi)的(de)(de)操縱(zong)是(shi)(shi)全液壓(ya)式(shi)(shi),也(ye)就是(shi)(shi)說在轉(zhuan)(zhuan)(zhuan)(zhuan)向(xiang)(xiang)(xiang)(xiang)柱和轉(zhuan)(zhuan)(zhuan)(zhuan)向(xiang)(xiang)(xiang)(xiang)輪(lun)之(zhi)(zhi)間(jian)沒有機(ji)(ji)械連(lian)接(jie),在轉(zhuan)(zhuan)(zhuan)(zhuan)向(xiang)(xiang)(xiang)(xiang)器(qi)(qi)與(yu)轉(zhuan)(zhuan)(zhuan)(zhuan)向(xiang)(xiang)(xiang)(xiang)油(you)缸之(zhi)(zhi)間(jian)是(shi)(shi)液壓(ya)管或軟(ruan)管鏈接(jie)。當轉(zhuan)(zhuan)(zhuan)(zhuan)動(dong)(dong)方(fang)向(xiang)(xiang)(xiang)(xiang)盤(pan),轉(zhuan)(zhuan)(zhuan)(zhuan)向(xiang)(xiang)(xiang)(xiang)器(qi)(qi)根據(ju)方(fang)向(xiang)(xiang)(xiang)(xiang)盤(pan)轉(zhuan)(zhuan)(zhuan)(zhuan)動(dong)(dong)比(bi)例輸(shu)送相對的(de)(de)油(you)量(liang),該油(you)量(liang)直接(jie)流到(dao)操縱(zong)缸相應一側,同時另一側的(de)(de)油(you)量(liang)回到(dao)油(you)箱。轉(zhuan)(zhuan)(zhuan)(zhuan)向(xiang)(xiang)(xiang)(xiang)器(qi)(qi)按(an)結構形(xing)式(shi)(shi)可(ke)(ke)分為(wei):有齒(chi)輪(lun)齒(chi)條式(shi)(shi)轉(zhuan)(zhuan)(zhuan)(zhuan)向(xiang)(xiang)(xiang)(xiang)器(qi)(qi)、蝸(gua)桿(gan)曲柄指銷式(shi)(shi)轉(zhuan)(zhuan)(zhuan)(zhuan)向(xiang)(xiang)(xiang)(xiang)器(qi)(qi)、循環球(qiu)(qiu)-齒(chi)條齒(chi)扇式(shi)(shi)轉(zhuan)(zhuan)(zhuan)(zhuan)向(xiang)(xiang)(xiang)(xiang)器(qi)(qi)、循環球(qiu)(qiu)曲柄指銷式(shi)(shi)轉(zhuan)(zhuan)(zhuan)(zhuan)向(xiang)(xiang)(xiang)(xiang)器(qi)(qi)、蝸(gua)桿(gan)滾(gun)輪(lun)式(shi)(shi)轉(zhuan)(zhuan)(zhuan)(zhuan)向(xiang)(xiang)(xiang)(xiang)器(qi)(qi)等(deng)。按(an)照助(zhu)力(li)(li)形(xing)式(shi)(shi)又(you)可(ke)(ke)以(yi)分:為(wei)機(ji)(ji)械式(shi)(shi)(無助(zhu)力(li)(li))轉(zhuan)(zhuan)(zhuan)(zhuan)向(xiang)(xiang)(xiang)(xiang)器(qi)(qi),和動(dong)(dong)力(li)(li)式(shi)(shi)(有助(zhu)力(li)(li))轉(zhuan)(zhuan)(zhuan)(zhuan)向(xiang)(xiang)(xiang)(xiang)器(qi)(qi)兩種,其中動(dong)(dong)力(li)(li)轉(zhuan)(zhuan)(zhuan)(zhuan)向(xiang)(xiang)(xiang)(xiang)器(qi)(qi)又(you)可(ke)(ke)以(yi)分為(wei)氣壓(ya)動(dong)(dong)力(li)(li)式(shi)(shi)、液壓(ya)動(dong)(dong)力(li)(li)式(shi)(shi)、電(dian)動(dong)(dong)助(zhu)力(li)(li)式(shi)(shi)、電(dian)液助(zhu)力(li)(li)式(shi)(shi)等(deng)種類。
別克ENVISION的中文名為“昂科威”,作為通用汽車全球全新一代戰略車型,別克昂科威外形設計秉承了ENVISION愿景概念車的設計精髓。
現款車型有1.5T和2.0T兩種排量可選,每種排量都有兩驅和四驅車型。1.5T搭配7檔雙離合變速器、2.0T搭配6檔手自一體變速器。
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