Made in China Fuel Injector 0445115062 Diesel Fuel Injector 0 445 115 062 for Bosch

Maitiro einjini yedhiziri inoshandura kupisa simba kuita magetsi emagetsi anowanikwa kuburikidza mana anoenderera maitiro: kutora, kumanikidza, kushanda uye kupera simba. Imwe neimwe nzira yakadaro inonzi denderedzwa rekushanda. Injini ipi neipi inopedza kutenderera kwekushanda nekutenderedza crankshaft kaviri uye kudzorera pisitoni kanokwana kanonzi "four-stroke engine". Kushanda musimboti wechina-stroke injini yedhiziri:

1. Kutora sitiroko

Iyo crankshaft inotyaira piston kuti ifambe kubva panzvimbo yepamusoro yakafa ichienda pazasi pakafa centre. Panguva ino, vheji yekupinda yakazaruka uye vheji yekupedza yakavharwa. Munguva yekufamba kwepiston, vhoriyamu yecylinder inowedzera zvishoma nezvishoma, ichigadzira vacuum, saka musanganiswa unopisa unosvetwa muhumburumbira kuburikidza nevharuvhu yekupinza kusvikira piston yasvika pakadzika pakafa pakati uye vharafu yekupinda yakavharwa.

Nekuda kwekupikiswa kwekutora kweiyo yekudyara system, kudzvanywa kwegasi mucylinder pakupera kwekutora kwakadzikira pane kudzvanywa kwemhepo, inenge 0.075MPa ~ 0.09MPa. Nekuda kwekudziya kwezvikamu zvepamusoro-soro senge silinda madziro uye piston uye yakakwirira-tembiricha yasara gasi rekuburitsa rakasiiwa mukutenderera kwapfuura, tembiricha yegesi inokwira kusvika 370K ~ 440K. Chii chinopinda muhumburumbira panguva yekurohwa kwekudya haisi musanganiswa unopisa, asi mweya wakachena.

2. Kutsikirira sitiroko

Pakupera kwekurohwa, piston inofamba kubva pasi yakafa centre ichienda kumusoro yakafa centre inofambiswa ne crankshaft, uye cylinder volume inodzikira zvishoma nezvishoma. Panguva ino, mavharuvhu ekutora uye ekupera akavharwa, uye mweya wakachena unomanikidzwa. Kutsikirirwa kunopera apo piston inosvika panzvimbo yepamusoro yakafa. Munguva yekumanikidza, gasi rinomanikidza uye tembiricha inowedzera panguva imwe chete, uye musanganiswa unowedzera kusanganiswa. Sezvo compression ratio yedhiziri yakakura, ingangoita 15 kusvika 22, tembiricha uye kudzvanywa pakupera kwekutsikirira kwakakwira, kudzvanywa kunogona kusvika 3MPa kusvika 5MPa, uye tembiricha inogona kusvika 800K kusvika 1000K.

3. Simba sitiroko

Pakupera kwekutsikirira sitiroko, pombi jekiseni remafuta rinopfapfaidza iyo yakakwira-kudzvanywa dizeli mumhepo yepamusoro-tembiricha uye yakanyanya-kudzvanywa mweya mucylinder kuburikidza nejekiseni nenzira yemhute, iyo inokurumidza kunyungudika uye inoita musanganiswa ne mhepo. Sezvo tembiricha iri mucylinder yakakwira kupfuura tembiricha yekudzima yedhiziri (inenge 500K), musanganiswa wedhiziri unobva wabatidza nekupisa wega, uye kwenguva yakati gare gare, kudzvanywa uye tembiricha mucylinder zvinokwira zvakanyanya paunenge uchibaya jekiseni. mafuta, kusundira piston pasi kuti iite basa. Munguva yekurova kwesimba, kudzvanywa kwepakarepo kunogona kusvika 5MPa ~ 10MPa, uye tembiricha yekukurumidza inogona kusvika 1800K ~ 2200K.

4. Kupera simba

Kana simba rekurova rave pedyo kusvika kumagumo, vheji yekupedza inovhura, valve yekupinda inovhara, uye crankshaft inosundira piston kubva pasi yakafa pakati kusvika kumusoro yakafa centre kuburikidza nekubatanidza tsvimbo. Iyo gasi yekupedza inoburitswa kubva muhumburumbira pasi pesimba rayo rasara uye kusunda kwepiston. Apo piston inosvika panzvimbo yepamusoro yakafa, valve yekupedza inovhara uye kupera kunopera. Nemhaka yokuti kune kupesana kwemhepo muhutano hwekutsvaira, pamagumo ekuputika kwemhepo, kumanikidzika muhumburumbira kunokwira zvishoma kudarika mhepo yemhepo, inenge 0.105MPa ~ 0.115MPa, uye tembiricha inenge 900K ~ 1200K.

Pakati pezvitiroko zvina, sitiroko yesimba chete ndiyo inoburitsa simba, uye mamwe matatu shamhu dzebetsero dzekugadzirira kurova kwesimba, uye dzese dzinopedza simba. Mukutanga kutenderera injini painotanga, panofanira kunge paine simba rekunze rekutenderedza crankshaft kuti ipedze kupinza uye kudzvanya sitiroko. Kana simba rekurova rinotanga, simba rekushanda rinochengetwa muflywheel kuburikidza ne crankshaft kuchengetedza kuenderera mberi kwemashure anotevera.