Electronically Controlled Common Rail System yeDiesel Generator

Iyo yemagetsi inodzorwa yakakwira-voltage yakajairika njanji tekinoroji tekinoroji inodzorwa nemagetsi inowanzoshandiswa neindasitiri yejenareta yedhiziri kuti isangane nematatu enyika emission standard.Musiyano mukuru pakati peEFI dhiziri jenareta uye yechinyakare dhiziri jenareta ndiyo yayo mafuta ekupa system akasiyana.Iyo yekutanga inoshandisa yemagetsi inodzorwa mafuta system, nepo yekupedzisira inoshandisa mechanical mafuta system.Parizvino, iyo yemagetsi inodzorwa mafuta system inogona kukamurwa kuva anotevera marudzi matatu:

1. Electronically controlled in-line pombi mafuta system;

2. Magetsi anodzora kugovera pombi yemafuta hurongwa;

3. Electronically kudzorwa high pressure common rail fuel system.

Parizvino, iyo yemagetsi inodzorwa zvakajairika njanji system ye dhiziri generator seti inonyanya kuumbwa nehigh pressure fuel pump, high pressure fuel rail, high pressure fuel pipe, high pressure fuel pipe connection, electronically controlled fuel injector, low pressure fuel pipe, diesel filter and fuel tank.

1. Nemagetsi inodzorwa high pressure mafuta pombi

(1) High pressure oil pombi yeDenso common rail system

Pombi yeoiri ine simba repamusoro-soro ine pombi mbiri dzeplunger dzepamusoro-soro, pombi yeoiri kumagumo evhiri uye pombi yemafuta kumucheto.Inotyairwa nemakamera maviri (3 flanges pane imwe neimwe cam), mafuta anodiwa neatanhatu-cylinder anopihwa kune yakakwira-kudzvanywa njanji nenguva.

(2) Pombi yemafuta yemaoko

Iyo pombi yemafuta yeruoko inoshandiswa kuburitsa mhepo mudunhu remafuta mune jekiseni remafuta.Iyo pombi yekufambisa mafuta iri kurutivi rworuboshwe rwepombi yepamusoro-soro uye inosanganiswa nepamusoro-soro yepombi yemafuta kuti ipe mafuta nehumwe kudzvinyirirwa kwepombi yepamusoro.Miviri miviri yero yevharuvhu iri pamusoro pepombi yemafuta mavharuvhu ekudzora mavharuvhu (PCV), ayo anodzora huwandu hwemafuta ekupa uye nguva yekupa mafuta pamapombi maviri zvakateerana.Rimwe nerimwe remavharuvhu maviri e-solenoid rinoenderana nevhavha yevhavha, valve (PCV1) pedyo neflywheel uye valve (PCV2) pedyo nechemberi.Basa rayo nderekugadzirisa kudzvanywa kwemafuta mupombi yenjanji yakajairika nekugadzirisa huwandu hwemafuta ayo pombi yemafuta inotsikirira mupombi yenjanji yakajairika.

(3) Camshaft chinzvimbo sensor (G sensor)

Iyo camshaft chinzvimbo sensor inoshandiswa kutonga nguva yekusvika kweiyo compression yepamusoro yakafa pakati pekutanga silinda yejenareta redhiziri sechiratidzo chechiratidzo chejekiseni remafuta.Iyo camshaft chinzvimbo sensor uye maviri anowirirana madhisiki madhisiki akabatanidzwa mune yakakwirira-kumanikidza mafuta pombi.Iyo plug yecamshaft chinzvimbo sensor iri pakati pepamberi pepombi yemafuta.

Kana iyo plunger ichidzika, vharafu yekudzora inovhurika, uye iyo yakaderera-kudzvanywa mafuta inoyerera ichipinda mugomba replunger kuburikidza nevhavha yekudzora.

Apo plunger inokwira, nokuti vheji yekudzora haisati yasimbiswa, iri munzvimbo yakazaruka, uye iyo yakaderera-inodzvinyirira mafuta inoyerera ichidzokera kukamuri yepasi-yakadzika kuburikidza nevhavha yekudzora.

Kana nguva yekupihwa kwemafuta yasvika, vharafu yekudzora inopihwa simba kuti ivhare, dhizaini yemafuta yekudzoka inogurwa, mafuta ari mugomba replunger anodzvanywa, uye mafuta anopinda mukati-inomanikidza mafuta njanji kuburikidza nevhavha yekubuda kwemafuta. .Shandisa mutsauko munguva yekuvhara yevhavha yekudzora kuti udzore huwandu hwemafuta hunopinda mu-high-pressure rail, kuitira kuti uwane chinangwa chekudzora kudzvinyirira kwepamusoro-soro.

Mushure mekunge cam yapfuura kukwidziridzwa kwepamusoro, plunger inopinda mutsiro inodzika, kudzvanywa mumhango yeplunger kunoderedzwa, vharuvhu yekubuda kwemafuta yakavharwa, uye kupihwa kwemafuta kunomiswa.Panguva ino, vheji yekudzora inomisa magetsi, uye iri munzvimbo yakazaruka.kutenderera kunotevera.

2. High kudzvinyirirwa zvakajairika njanji pombi gungano

Iyo yakakwira-yakajairika njanji pombi inopa yakakwira-kudzvanywa mafuta inopiwa nepombi yekupa mafuta kune majekiseni emafuta ehumburumbira yega yega mushure mekugadzikiswa uye kusefa, uye inoita sekumanikidza accumulator.Huwandu hwayo hunofanira kudzikisa kusimba kwemafuta ekupa kudzvanywa kwepombi yepamusoro-kudzvanywa kwepombi uye kudzvanywa kweoscillation kunokonzerwa nejekiseni rejekiseni rega rega, kuitira kuti kudzvanywa kwemhepo mune yakakwira-kumanikidza mafuta njanji kunodzorwa pazasi 5MPa.

(1) Basa reiyo njanji inodzikamisa vharafu nderekuti kana iyo yakajairika njanji dhizaini ichipfuura iyo yakanyanya kumanikidza iyo yakajairika pombi yenjanji inogona kumira, iyo njanji inodzikamisa vharafu inozovhurika otomatiki kudzikisa yakajairika njanji kumanikidza kusvika 30MPa.

(2) Kune matanhatu mavharuvhu ekudzikamisa kuyerera (akafanana nenhamba yemasilinda) pachikamu chepamusoro chepombi yenjanji yakajairika, iyo yakatevedzana yakabatana nemapombi emafuta ekudzvanya kwemasilinda matanhatu.Kana iyo pombi yehutsi hwepamusoro-soro yeimwe silinda ikadonha kana jekiseni remafuta ikatadza uye kero yejekiseni yemafuta ikadarika muganhu, vharafu inomisa kuyerera ichaita kuti ibvise mafuta ehumburumbira.Kune 1 ~ 2 mafuta ekupinda kunze kwenjanji yakajairwa, ayo akabatana neoiri yekubuda kweiyo yakanyanya kudzvanywa mafuta epombi yepamusoro yemafuta.Iyo njanji yekumanikidza sensor iri kurudyi rwejanji njanji ine harness yekubatanidza.

3. Common rail system control system

Iyo yemagetsi inodzorwa yakajairika njanji system inogona kukamurwa kuita zvikamu zvitatu: masensa, makomputa uye actuators.

Iyo komputa ndiyo yepakati chikamu chemagetsi chinodzorwa zvakajairika njanji mafuta system.Zvinoenderana neruzivo rwe sensor yega yega, komputa inoverenga uye kupedzisa kugadzirisa kwakasiyana, inowana yakanakisa jekiseni nguva uye yakanyanya kukodzera jekiseni remafuta, uye inoverengera kuti riini uye kwenguva yakareba sei kuvhura jekiseni remafuta.Solenoid valve, kana murairo wekuvhara solenoid valve, nezvimwewo, kuitira kunyatso kudzora kushanda kwejenareta ye diesel.Iyo yakakosha yemagetsi control system ndeye ECU - yemagetsi control unit.Iyo ECU iine microcomputer.Iko kupinza kweECU kwakasiyana-siyana sensors uye switches yakaiswa pane jenareta seti uye dizeli jenareta;iyo yakabuda yeECU ndiyo ruzivo rwemagetsi runotumirwa kune imwe neimwe actuator.

4. Yakajairika njanji system mafuta ekupa system

Izvo zvakakosha zveiyo mafuta ekupa system ndiyo pombi yekugovera mafuta, njanji yakajairika uye jekiseni remafuta.Nheyo yekutanga yekushanda kweiyo mafuta ekugovera sisitimu ndeyekuti pombi yekupa mafuta inomanikidza mafuta kune yakanyanya kudzvanywa uye inoidyisa munjanji yakajairika;njanji yakajairika ndiyo pombi yekuparadzira mafuta.Mafuta akachengetwa munjanji yakajairika anobayiwa mu cylinder jenareta redhiziri kuburikidza nejekiseni panguva yakakodzera.Iyo jekiseni yemafuta mumagetsi inodzorwa yakajairika njanji system ivhavha jekiseni yemafuta inodzorwa nevhavhavha ye solenoid, uye kuvhura nekuvhara kwevhavha ye solenoid inodzorwa nekombuta.