一、點火器組成部分
點火器的組成主要由電源、點火線圈、分電器、點火開關、火花塞、附加(jia)電阻及其短(duan)接(jie)裝置(zhi)、高低(di)壓導線等組成。
1、電(dian)(dian)(dian)源(yuan):由(you)(you)蓄電(dian)(dian)(dian)池和(he)發(fa)(fa)電(dian)(dian)(dian)機組成。啟(qi)動時,點(dian)(dian)火(huo)系由(you)(you)蓄電(dian)(dian)(dian)池提供(gong)低壓(ya)電(dian)(dian)(dian)能(neng);啟(qi)動后,當(dang)發(fa)(fa)電(dian)(dian)(dian)機電(dian)(dian)(dian)壓(ya)高于蓄電(dian)(dian)(dian)池電(dian)(dian)(dian)壓(ya)時,點(dian)(dian)火(huo)系由(you)(you)發(fa)(fa)電(dian)(dian)(dian)機提供(gong)低壓(ya)電(dian)(dian)(dian)能(neng)。
2、點火線圈:將汽車電源(yuan)提供的(de)12V低壓電轉變成能擊穿火花塞(sai)電極間隙的(de)高壓電。
3、分電(dian)器(qi):在發電(dian)機(ji)凸輪(lun)軸驅動下,準時接(jie)通(tong)和切(qie)斷(duan)(duan)點(dian)(dian)火(huo)線(xian)圈(quan)初(chu)級(ji)電(dian)流(liu),使點(dian)(dian)火(huo)線(xian)圈(quan)及時產生高(gao)壓電(dian),并按點(dian)(dian)火(huo)順序將高(gao)壓電(dian)傳送(song)至各缸火(huo)花(hua)塞;同時能自動和人為地實(shi)現對點(dian)(dian)火(huo)時間的(de)調(diao)整。其中電(dian)容(rong)器(qi)的(de)作用是減小斷(duan)(duan)電(dian)器(qi)觸點(dian)(dian)火(huo)花(hua),提(ti)高(gao)點(dian)(dian)火(huo)線(xian)圈(quan)次級(ji)電(dian)壓。
4、點(dian)火開關:控制(zhi)點(dian)火系低壓電路的通斷,控制(zhi)發電機的啟動和(he)熄火。
5、火花(hua)塞:將高(gao)壓電(dian)引入(ru)燃(ran)燒(shao)室,產生電(dian)火花(hua)點燃(ran)混合氣(qi)。
6、附加電(dian)阻短接裝置(zhi):起(qi)動(dong)時(shi)將附加電(dian)阻短接,增大點(dian)火線圈初級電(dian)流,增強起(qi)動(dong)時(shi)火花塞(sai)的(de)跳火能量(liang)。
二、點火器的種類
1、電(dian)子式脈沖式點(dian)(dian)火(huo)器(qi):脈沖式因功率小(xiao)所以點(dian)(dian)火(huo)的(de)(de)能量小(xiao),產生的(de)(de)火(huo)花溫度低(di),對(dui)有部(bu)分燃(ran)點(dian)(dian)高可遴性氣(qi)體(ti)和濃度較(jiao)低(di)的(de)(de)混合氣(qi)體(ti),有鼓風的(de)(de)燃(ran)燒器(qi)點(dian)(dian)火(huo)時點(dian)(dian)燃(ran)率較(jiao)低(di),經常會出(chu)現(xian)點(dian)(dian)不著(zhu)或爆燃(ran)等安全(quan)事故,長(chang)時間且不能連續點(dian)(dian)火(huo)容易燒壞于燃(ran)油(you)的(de)(de)燃(ran)燒器(qi)。
2、電(dian)子(zi)式(shi)高頻高壓點火器(qi):功率大,點火能量高產生火花(hua)溫度高,但(dan)點火時間普遍不超5分鐘,否則(ze)容易發熱,燒壞(huai),而(er)體(ti)積大而(er)重,安裝運(yun)輸難。
3、線圈(quan)矽鋼片式點火(huo)器:功率大(da),能量(liang)高產生火(huo)花溫(wen)度(du)高,點火(huo)時間10分鐘左(zuo)右,否則發熱燒(shao)壞,體積較小而輕,但國產普(pu)遍質(zhi)量(liang)不好被進口占領90%市場(chang)。
三、點火器質量如何鑒別
1、將點火器的(de)(de)接線(xian)(xian)都插接上時,先不(bu)要接電(dian)(dian)源線(xian)(xian)(交流點(dian)火器的(de)(de)充電(dian)(dian)端(duan)),或是(shi)預先就將磁電(dian)(dian)機(ji)的(de)(de)高壓輸出(chu)線(xian)(xian)頭(tou)拔(ba)開(kai)。在確(que)定點(dian)火器的(de)(de)地(di)線(xian)(xian)與車(che)上電(dian)(dian)路的(de)(de)地(di)線(xian)(xian)連(lian)接良好后,再將高壓帽(mao)從火花塞(sai)上拔(ba)出(chu),插一備份(fen)的(de)(de)火花塞(sai)搭在車(che)體上。最(zui)后是(shi)將摩托車(che)上的(de)(de)直流電(dian)(dian)路(火線(xian)(xian)是(shi)接電(dian)(dian)瓶+極。)去連(lian)接點(dian)火器的(de)(de)充電(dian)(dian)端(duan)。
2、將點(dian)(dian)(dian)火(huo)(huo)(huo)器(qi)(qi)(qi)按(an)上(shang)述連接(jie)好電路后,轉動磁(ci)電機使觸發(fa)傳感器(qi)(qi)(qi)給點(dian)(dian)(dian)火(huo)(huo)(huo)器(qi)(qi)(qi)送去點(dian)(dian)(dian)火(huo)(huo)(huo)信號,看火(huo)(huo)(huo)花塞(sai)是(shi)(shi)不(bu)是(shi)(shi)打火(huo)(huo)(huo)。如果(guo)火(huo)(huo)(huo)花塞(sai)打火(huo)(huo)(huo),這就是(shi)(shi)直流(liu)(liu)點(dian)(dian)(dian)火(huo)(huo)(huo)器(qi)(qi)(qi)。(交流(liu)(liu)點(dian)(dian)(dian)火(huo)(huo)(huo)器(qi)(qi)(qi)的(de)充電端通常(chang)接(jie)受(shou)上(shang)百伏電壓,對電瓶的(de)12V無動于衷。)如果(guo)暫時不(bu)打火(huo)(huo)(huo),也要仔細認真地檢(jian)查(cha)原因,或是(shi)(shi)用(yong)電表測量法確定點(dian)(dian)(dian)火(huo)(huo)(huo)器(qi)(qi)(qi)性質,不(bu)可輕易誤判為交流(liu)(liu)點(dian)(dian)(dian)火(huo)(huo)(huo)器(qi)(qi)(qi)。
3、比(bi)較保險的(de)辦法是使用(yong)(yong)低(di)壓電源(yuan)(yuan)做對(dui)點火(huo)(huo)器(qi)(qi)做反(fan)復(fu)測(ce)(ce)試(shi),多次確定不是使用(yong)(yong)低(di)壓電的(de)直流(liu)(liu)點火(huo)(huo)器(qi)(qi)了,才(cai)可(ke)(ke)以判(pan)定為(wei)交(jiao)流(liu)(liu)點火(huo)(huo)器(qi)(qi)。有(you)條件(jian)的(de)車友,可(ke)(ke)以使用(yong)(yong)小電流(liu)(liu)的(de)高壓電源(yuan)(yuan),如果萬(wan)一是直流(liu)(liu)點火(huo)(huo)器(qi)(qi),也可(ke)(ke)以因(yin)電流(liu)(liu)小=電壓降低(di)而(er)不傷害點火(huo)(huo)器(qi)(qi)。但小電流(liu)(liu)的(de)高壓,還是會對(dui)交(jiao)流(liu)(liu)點火(huo)(huo)器(qi)(qi)實現充電的(de),在測(ce)(ce)試(shi)中要小心放電麻手。
4、對于(yu)特殊情況,例如電(dian)感高壓(ya)包(bao)就不適合配套(tao)CDI點(dian)(dian)火(huo)器(qi);有的是(shi)點(dian)(dian)火(huo)器(qi)與高壓(ya)包(bao)合并的點(dian)(dian)火(huo)器(qi),例如XH90四沖一體化(hua)點(dian)(dian)火(huo)器(qi)。還(huan)有的是(shi)自觸(chu)發的二(er)沖交流點(dian)(dian)火(huo)器(qi),是(shi)使用(yong)磁電(dian)機高壓(ya)電(dian)源(yuan)的,正向(xiang)充電(dian)蓄能/反向(xiang)觸(chu)發放電(dian)。
申明:以上方法源于程序系統索引或網民分享提供,僅供您參考使用,不代表本網站的研究觀點,證明有效,請注意甄別內容來源的真實性和權威性。