Isistimu Yesitimela Ejwayelekile Elawulwa Ngogesi Yejeneretha Yedizili

Ubuchwepheshe besitimela esivamile esilawulwa nge-elekthronikhi ubuchwepheshe obulawulwa nge-elekthronikhi obuvamise ukusetshenziswa imboni yokuphehla udizili ukuze kuhlangatshezwane namazinga kazwelonke amathathu aphumayo.Umehluko omkhulu phakathi kwe-EFI generator diesel kanye ne-generator yendabuko kadizili ukuthi uhlelo lwayo lokuhlinzeka ngophethiloli luhlukile.Owokuqala usebenzisa isistimu kaphethiloli elawulwa nge-elekthronikhi, kanti lena isebenzisa isistimu kaphethiloli eyimishini.Njengamanje, isistimu kaphethiloli elawulwa nge-elekthronikhi ingahlukaniswa ngezinhlobo ezintathu ezilandelayo:

1. Uhlelo lukaphethiloli lwephampu olulawulwa ngogesi;

2. Uhlelo lwephampu yokulawula ukusatshalaliswa kukagesi;

3. Elawulwa nge-elekthronikhi high pressure common common rail fuel system.

Njengamanje, uhlelo lwesitimela oluvamile olulawulwa nge-elekthronikhi lwe amasethi generator diesel ikakhulukazi yakhiwe iphampu yamafutha anomfutho ophezulu, ujantshi wamafutha omfutho ophezulu, ipayipi likaphethiloli elinomfutho ophezulu, ukuxhunywa kwepayipi likaphethiloli ocindezelwe kakhulu, isijovo sikaphethiloli esilawulwa nge-elekthronikhi, ipayipi likaphethiloli eliphansi, isihlungi sikadizili kanye nethangi likaphethiloli.

1. Iphampu kawoyela elawulwa nge-elekthronikhi ephezulu

(1) Iphampu kawoyela enengcindezi ephezulu yohlelo lwesitimela oluvamile lweDenso

Iphampu kawoyela enengcindezi ephezulu inamaphampu amabili e-high-pressure plunger, iphampu kawoyela ekugcineni kwe-flywheel kanye nephampu kawoyela ekugcineni.Ishayelwa amakhamera amabili (ama-flange ama-3 kukhamera ngayinye), uphethiloli odingwa amasilinda ayisithupha unikezwa ujantshi wengcindezi ephezulu ngesikhathi.

(2) Iphampu yamafutha esandla

Iphampu kawoyela yesandla isetshenziselwa ukukhipha umoya kumjikelezo kawoyela ohlelweni lomjovo wamafutha.Ipompo yokudlulisa uwoyela itholakala ngakwesobunxele sephampu yamafutha ecindezelo eliphezulu futhi ihlanganiswe nephampu yamafutha ecindezelo eliphezulu ukuze inikeze uphethiloli ngokucindezela okuthile kwephampu kawoyela enomfutho ophezulu.Ama-valve amabili aphuzi atholakala engxenyeni engenhla yephampu kawoyela amavalvu okulawula ukucindezela (PCV), alawula inani lokunikezwa kukawoyela kanye nesikhathi sokuphakelwa kukawoyela kwamaphampu amabili ngokulandelanayo.Ivalvu ngayinye yama-solenoid amabili ihambisana nepulaki yokubopha izintambo, ivalvu (PCV1) eduze kwe-flywheel kanye nevalvu (PCV2) eduze nangaphambili.Umsebenzi wayo ukulungisa umfutho kaphethiloli epayipini lesitimela elivamile ngokulungisa inani likaphethiloli ipompo likawoyela elicindezela lingene epayipini likaloliwe elivamile.

(3) Inzwa yendawo ye-Camshaft (Inzwa ye-G)

Inzwa yokuma kwe-camshaft isetshenziselwa ukwahlulela isikhathi sokufika kwesikhungo esifile sokuminyanisa isilinda sokuqala sejeneretha yedizili njengesignali yereferensi yokujova uphethiloli.Inzwa yesikhundla se-camshaft kanye nama-disc esiginali amabili ahambisanayo ahlanganiswe kupompo likawoyela elinomfutho ophezulu.Ipulaki yenzwa yokuma ye-camshaft itholakala phakathi nendawo engaphambili yephampu kawoyela.

Lapho i-plunger yehla, i-valve yokulawula ukucindezela iyavuleka, futhi uphethiloli we-low-pressure ugelezela emgodini we-plunger nge-valve yokulawula.

Lapho i-plunger ikhuphuka, ngenxa yokuthi i-valve yokulawula ayikanikeli amandla okwamanje, isesimweni esivulekile, futhi uphethiloli wengcindezi ephansi ugeleza ubuyele ekamelweni lokucindezela okuphansi nge-valve yokulawula.

Lapho isikhathi sokutholakala kukaphethiloli sifinyelelwa, i-valve yokulawula inikwa amandla ukuyivala, umjikelezo kawoyela obuyayo uyanqanyulwa, uphethiloli osesigabeni se-plunger uyacindezelwa, futhi uphethiloli ungena kusitimela esinomfutho ophezulu ngokusebenzisa i-valve yokukhipha uphethiloli. .Sebenzisa umehluko ngesikhathi sokuvala se-valve yokulawula ukuze ulawule inani lamafutha angena kumzila wesitimela onomfutho ophezulu, ukuze ufeze injongo yokulawula ukucindezela komzila wesitimela onomfutho ophezulu.

Ngemuva kokuthi ikhamera isidlulile ukuphakama okuphezulu, i-plunger ingena ku-stroke eyehlayo, ukucindezela emgodini we-plunger kuyancipha, i-valve yokukhipha uwoyela ivaliwe, futhi ukunikezwa kukawoyela kuyamiswa.Ngalesi sikhathi, i-valve yokulawula imisa ukunikezwa kwamandla, futhi isesimweni esivulekile.umjikelezo olandelayo.

2. Umhlangano wepayipi lesitimela elivamile elinengcindezi ephezulu

Ipayipi lesitimela elivamile elinengcindezi ephezulu linikeza uphethiloli womfutho ophezulu ohlinzekwa yiphampu yokuphakela uphethiloli kuma-injection kaphethiloli esilinda ngasinye ngemva kokuzinziswa nokuhlungwa, futhi usebenza njenge-accumulator yokucindezela.Ivolumu yayo kufanele yehlise ukuguquguquka kwengcindezi yokunikezwa kukawoyela wephampu kawoyela enengcindezi ephezulu kanye ne-oscillation yokucindezela okubangelwa inqubo yokujova yomjovo ngamunye, ukuze ukushintshashintsha kwengcindezi kumzila kaphethiloli womfutho ophezulu kulawulwe ngaphansi kuka-5MPa.

(1) Umsebenzi wevalvu yokunciphisa umfutho wesitimela ukuthi uma umfutho wesitimela ovamile udlula ukucindezela okukhulu okungamelana nepayipi elivamile likajantshi, ivalvu yokunciphisa umfutho wesitimela izovuleka ngokuzenzakalelayo ukuze kwehlise umfutho wesitimela ovamile ube cishe ku-30MPa.

(2) Kunamavalvu ayisithupha okunciphisa ukugeleza kwamanzi (afana nenani lamasilinda) engxenyeni engenhla yepayipi lesitimela elivamile, axhunywe ngokulandelana kwamapayipi kawoyela anengcindezi ephezulu yamasilinda ayisithupha.Uma ipayipi likaphethiloli elinomfutho ophezulu wesilinda elithile livuza noma isijojo sikaphethiloli sihluleka futhi ikheli lomjovo kaphethiloli lidlula umkhawulo, ivalvu ekhawulela ukugeleza izosebenza ukuze inqamule ukunikezwa kukaphethiloli kwesilinda.Kukhona ama-inlets angu-1 ~ 2 kawoyela ngaphandle kwesitimela esivamile, axhunywe ngokulandelana kwawo nendawo yokukhipha uwoyela kawoyela ocindezelayo wephampu kawoyela enengcindezi ephezulu.Inzwa yengcindezi kajantshi itholakala ngakwesokudla sikajantshi ojwayelekile ngesixhumi sehhanisi.

3. Uhlelo olujwayelekile lokulawula uhlelo lwesitimela

Isistimu yesitimela evamile elawulwa nge-elekthronikhi ingahlukaniswa izingxenye ezintathu: izinzwa, amakhompyutha nama-actuator.

Ikhompiyutha iyingxenye eyinhloko yohlelo oluvamile lukagesi lukaloliwe olulawulwa nge-elekthronikhi.Ngokolwazi lwenzwa ngayinye, ikhompuyutha ibala futhi iqedele ukucutshungulwa okuhlukahlukene, ithola isikhathi esingcono kakhulu somjovo kanye nenani lomjovo kaphethiloli elifaneleka kakhulu, bese ibala ukuthi isijovo sikaphethiloli sizosivula nini futhi isikhathi esingakanani.I-valve ye-Solenoid, noma umyalo wokuvala i-valve ye-solenoid, njll., ukuze ulawule ngokunembile inqubo yokusebenza kwejeneretha yedizili.Umnyombo wesistimu yokulawula i-elekthronikhi yi-ECU - iyunithi yokulawula i-elekthronikhi.I-ECU iyikhompyutha encane.Okokufaka kwe-ECU yizinzwa ezihlukahlukene kanye nokushintsha okufakwe kusethi ye-generator kanye ne-generator diesel;okukhiphayo kwe-ECU ulwazi lwe-elekthronikhi oluthunyelwa ku-actuator ngayinye.

4. Uhlelo lukaloliwe olujwayelekile lokuhlinzeka ngophethiloli

Izingxenye eziyinhloko zesistimu yokuphakelwa kukaphethiloli yiphampu yokuphakela uphethiloli, ujantshi ovamile kanye nesijovo sikaphethiloli.Umgomo oyisisekelo wokusebenza wesistimu yokuphakelwa kukaphethiloli ukuthi iphampu yokuphakela uphethiloli icindezela uphethiloli kumfutho ophezulu futhi iwufake kumzila wesitimela ovamile;umzila ovamile empeleni uyipayipi lokusabalalisa amafutha.Uphethiloli ogcinwe kujantshi ojwayelekile ujovwa kusilinda generator udizili ngomjovo ngesikhathi esifanele.I-fuel injector ohlelweni lwesitimela oluvamile olulawulwa nge-elekthronikhi iyi-valve yokujova uphethiloli elawulwa yi-solenoid valve, futhi ukuvulwa nokuvala kwe-solenoid valve kulawulwa yikhompyutha.