Chii chinonzi vharuvhu yePCV yemotokari
Vharuvhu yePCV (Crankcase forced ventilation valve) chinhu chakakosha cheinjini yemotokari. Basa rayo guru nderekutungamira musanganiswa uri mu crankcase mu intake manifold kuti itsvedzere, kudzivirira kubuda kwegasi zvakananga mumhepo uye kukonzera kusvibiswa. Panguva imwe chete, inodzivirirawo kuora kwemafuta einjini uye kupera kweinjini.
Maumbirwo uye musimboti wekushanda
Vharuvhu yePCV inoumbwa nemuviri wevharuvhu, vharuvhu, chifukidziro chevharuvhu uye chitubu, uye mwero wekuvhura nekuvhara kwayo unodzorwa ne mwero wevacuum we intake manifold. Kana injini ichishanda nekumhanya kwakaderera kana kuti idling, muviri wevharuvhu unovhurika zvishoma kuti uise huwandu hushoma hwemusanganiswa. Yakavhurika zvizere nekumhanya kwakakwirira kana panguva yekumhanyisa kuwedzera vhoriyamu yekufema. Kana injini ikadzokera shure, muviri wevharuvhu unovhara wega kudzivirira crankcase kuputika.
Mabasa makuru
Kudzivirira nharaunda kweYoudaoplaceholder0: Kudzivirira gasi rakasanganiswa risina kupiswa kuti risaburitswe zvakananga mumhepo kudzivirira kusvibiswa.
Youdaoplaceholder0 Dzivirira oiri yeinjini : Dzivirira kudonha kwegasi kubva mukudurura oiri uye kukonzera kuora, nokudaro zvichiita kuti hupenyu hweinjini huwedzere.
Youdaoplaceholder0 Kudzora kumanikidzwa : Kuenzanisa kumanikidzwa kwe crankcase kudzivirira kuburitsa mafuta ekuzora.
Kana vharuvhu yePCV yakavharwa, zvinogona kukonzera kusvibiswa kwechinhu chinosefa intake, kuwedzera kwekushandiswa kwemafuta, kukurumidza kupera kweinjini kana kutokuvara. Zvakakosha kuchenesa tsvina yakaipoteredza nguva nenguva (sekutarisa kuchinjika kwemuviri wevharuvhu uye kusveta vacuum panguva yekugadzirisa nguva dzose).
PCV ipfupiso yemazwi matatu ekuti "Positive Crankcase Ventilation" muchirungu. MuchiChinese, zvinoreva crankcase (kana oil pan) active ventilation risk control system. Vharuvhu yePCV inoumbwa nemuviri wevharuvhu, vharuvhu, chifukidziro chevharuvhu nechitubu, uye haigone kuparadzaniswa. Basa rayo guru ndere: kuisa gasi riri mu crankcase mu intake manifold kuburikidza nePCV valve, uye mweya mudiki unopinda zvakananga mu intake manifold kubva mu air filter kuburikidza nePCV valve. Izvi zvinodzivirira zviitiko zvakaita sekuumbwa kwechando pa throttle, kupisa kusina kukwana, uye kuora kwe emissions. Dziviriro yegasi kuti isapinde mumhepo uye panguva imwe chete kudzivirira oiri yeinjini kuti isaora.
Pakupera kwekushanda kweinjini, mimwe misanganiswa isina kupiswa inodonhedza mu crankcase kubva mumapiston rings pasi pekumanikidzwa kwakanyanya. Rudzi urwu rwekudonhedza runonzi "blow-by" muindasitiri. Magasi aya anodonhedza anobuda mu crankcase achienda mumhepo, zvichikonzera kusvibiswa. Kana misanganiswa iyi isina kupindira ikasaburitswa, inozoderedzawo mafuta einjini mu crankcase, zvichiita kuti mafuta acho aome uye zvichikonzera kupera kwezvikamu zveinjini nguva isati yakwana. Kubva kuma1960, California muUnited States ndiyo yave yekutanga kuda kuti mota dzive nePCV systems, izvo zvave chinhu chinodiwa mumotokari.
Mazhinji einjini dzepeturu ane mavharuvhu ePCV (crankcase forced ventilation devices) kuti zvive nyore kuchinjana kwemhepo muinjini. Zvisinei, tsvina iri mumabhawa inogona kuungana yakakomberedza mavharuvhu ePCV, zvichiita kuti avharwe. Kana vharuvhu yePCV yakavharwa, gasi rakasviba rinodzokera mufirita yemhepo, richisvibisa chinhu chefirita, richideredza kugona kwekusefa, zvichikonzera kushandiswa kwemafuta zvakanyanya, kupera kweinjini zvakanyanya, uye kutokuvadza injini. Saka, zvakakosha kuchengetedza PCV nguva dzose uye kubvisa tsvina yakakomberedza vharuvhu yePCV.
Vharuvhu yePCV ivharuvhu yekuyera. Inoiswa pakati pe crankcase ventilation system ne intake system yeinjini. Vharuvhu yePCV inodzorwa ne vacuum degree kuti itonge kuyerera kweutsi hunogadzirwa ne crankcase ventilation system inopinda mu intake system. Kana injini ichishanda nekumhanya kukuru, kuyerera kwayo kunofanira kunge kwakakwira kupfuura painoshanda nekumhanya kwakaderera. Panguva imwe chete, kana injini ikasangana nekudzokera shure, PCV valve inofanira kukwanisa kudzima kufefetera kudzivirira crankcase kuputika.
Mota yega yega ine pombi yekuburitsa gasi rinopisa kubva muinjini kuenda kunze kwemotokari. Zvisinei, hazvigoneke kubvisa gasi rese rinopisa zvachose. Gasi diki rinopisa richaramba richipinda mupani yemafuta kuburikidza nemukana uri pakati pepiston nemadziro esilinda. Kana mafuta negasi zvapinda mupani yemafuta zvaungana uye zvikasagona kuburitswa, zvinogadzira mweya unomanikidza, izvo zvisingangonyungudi mafuta einjini chete asiwo zvinokonzera kunyorovesa kwezvikamu zveinjini. Zvichakonzerawo migumisiro yakakomba senge kushandiswa zvisina kujairika kwemafuta einjini. Saka, mafuta negasi riri mupani yemafuta rinofanira kunge riine pombi yekuburitsa. Kare, pamberi pemutemo nekudzora kusvibiswa kwemafuta emota, pombi yaibatanidzwa nepani yemafuta kuti iburitse mafuta negasi zvakananga mumhepo. Kana mota ikakura, mafuta emoto negasi zvinobuda zvakanyanya, uye gasi rinopisa rinobuda mupani yemafuta, zvichikonzera kusvibiswa kwemhepo zvakanyanya.
Kana uchida kuziva zvakawanda, ramba uchiverenga zvimwe zvinyorwa pane ino saiti!
Ndapota tifonerei kana muchida zvigadzirwa zvakadaro.
Zhuo Meng Shanghai Auto Co., Ltd. yakazvipira kutengesa MG&MAXUSzvikamu zvemota zvinogamuchirwa Kutenga.
