Subaru EJ257 injini
Iyo Subaru EJ257 injini ndeyemhuri yeEJ. Mumutsara uyu, EJ25 ICE ndiyo inonyanya kufarirwa uye yakapararira - yakaiswa pamhando huru dzemotokari kubva kumugadziri wechiJapan. Ndiye iye akatangira EJ257 simba chirimwa chiri mubvunzo.
Motokari yakagamuchira chivharo chealuminium chine maoko e-cast-iron, masilinda ane dhayamita ye99.5 mm uye kureba kwe201 mm. Iine crankshaft ine piston sitiroko ye79 mm. Izvi zvakaita kuti zvikwanise kuwana vhoriyamu ye2.5 litres.
Iyo EJ25 mota yakagadzirwa muna 1995 - yakashandiswa kusvika 1998, ndokuzochinjirwa kuEJ251 injini nekuvandudzwa kwezvakatipoteredza, uye kunyange gare gare - kune EJ253.
Muna 1998, injini yeEJ255 yakagadzirwa - yakaiswa paSubaru Forester, Impreza WRX uye Legacy motokari kubva muna 2004 kusvika muna 2005. Yaiva injini ye turbocharged ine semi-yakavharwa block, kaviri pamusoro camshaft uye variable valve timing. TD04L turbine yakashandiswa pano, uye compression reshiyo yaive 8.4 mayunitsi. Simba rekugadzira simba rakasvika 210 litres. With. nekumhanya kwe5600 rpm.
Iyo Subaru Impreza WRX STI yakagamuchira injini yakavandudzwa - EJ257. Kusiyana neiyo yapfuura modhi (EJ255), akasiyana pistons akashandiswa pano uye compression reshiyo yaive yakaderera - 8 zvikamu. Zvakare, iyo unit yakagamuchira yakagadziridzwa silinda musoro, mamwe makamuri anopisa. Injini ine IHI VF48 turbine ine boost pressure ye 1 bar - aya maitiro anotendera iwe kuti uwane simba re280 hp. With. pakutenderera kumhanya kwe5600 rpm. Pamichina yeImpreza WRX STI III, iyo compression ratio yakawedzera kusvika 8.4, AVCS (valve valve timing control) system yakawedzerwa pamacamshafts - iyi yakawedzera injini simba kusvika mazana matatu hp. With. pa torque ye300 rpm.
Subaru EJ257 injini yakatarwa
Iwo makuru paramita emota anoratidzwa patafura pazasi:
| Cylinder volume | 2.457 l |
| Maximum simba | 280 ‒ 300 l. With. |
| Torque | 350 Nm - pa6000 rpm 407 - pa4000 rpm |
| Mafuta anodiwa | Gasoline AI-98 kana AI-95 |
| Consumption | Pakati - 10.9 l / 100 km |
| Uwandu sepombi | 4 pcs |
| Of mavharuvhu | 4 pa silinda (16 pcs) |
| Simba rekushandisa | 280 l. With. pa5600 rpm 300 l. With. pa6000 rpm |
| Kukanganiswa kwehuwandu | 8.4 |
| Supercharger | Turbine |
Mota dzine EJ257 injini
Kubva painjini iyi, modhi imwe chete inogadzirwa - iyo Subaru Impreza WRX STI. ICE yakaiswa pamotokari:
- Chechipiri chizvarwa sedans - kubva 2005 kusvika 2007.
- Chizvarwa chechitatu sedans - 2007-2011.
- Chizvarwa chechitatu hatchbacks - 2007-2013.
- Chizvarwa chechina sedans - 2014-2017.
- Hatchbacks yechizvarwa chechina - 2016 - nguva yedu.
Tichifunga kuti injini idzi hadzisati dzasakara, dzinogona kuiswa pane mamwe mamodhi eSubaru mota kana Impreza chizvarwa.
Zvakaipa uye matambudziko
Chimwe chezvakanyanya kuipa kweichi magetsi chirimwa ndechekuwedzera kushandiswa kwemafuta. Uyezve, zera remotokari harina kukanganisa kushandiswa kwemafuta - dzimwe nguva motokari itsva dzine makore 4-5 dzinouya kuchiteshi chebasa. Chikonzero chekupisa kwegirisi kunonzi kuchinjika chinzvimbo chemasilinda uye kuitika kwemhete - ichi chinowanzo chiyero "chirwere" cheinjini dzakawanda dzeSubaru. Zvakare, varidzi vemota dzine injini idzi vanogunun’una nezvekudonha kwechisimbiso nekudikitira kwemavhavha. Nekudaro, iri idambudziko rinenge rese boxer mota.
Iko kuomarara kwekugadzirisa ndeimwe drawback yeEJ257 yemukati inopisa injini. Izvi zvinokonzerwa nenhamba huru yekugadziridzwa pamotokari - Subaru Impreza yakanga yakashongedzerwa nemainjini mapfumbamwe akasiyana mune makumi mana ekugadziriswa. Uye kana mune imwe mota chero kuparara kwakajairika kwakagadziriswa nyore, saka zvaive zvakaoma kuigadzirisa pane yechipiri shanduko. Iyi dhizaini haishande zvakananga kune EJ257 mota, asi kazhinji kune ese einjini yemugadziri uyu.
Dambudziko rinotevera inzvimbo uye kuoma kwekutsiva bhandi renguva. Pamaboxer motors, inowanikwa zviri nyore, asi inotenderera yakawanda yema rollers uye pulleys. Paunenge uchitsiva pane DOHC (dual camshaft) rudzi rwemotokari, zviri nyore kupotsa mazino mashomanana, izvo zvinogona kuguma zvinotungamirira kune bhanhire rakaputsika uye kukotama kwemavharuvhu.
Iyo mass flow sensor inovharwa netsvina uye nekuda kweizvi inotadza. Iri idambudziko kune vakawanda vagadziri, kwete chete Subaru.
Yakavharwa crankcase ventilation zvakare idambudziko mune dzinenge dzese dzinoshuvira injini. Zvisinei, injini dzinopisa dzomukati dzakawanda dzinoshanda kana mavhavha emhepo akavharwa - apo mafuta anosvika pamhepo mafirita, dipstick inobviswa kunze, nezvimwewo. Kana iri EJ257 motors (nevamwe vari mumutsara), zvisimbiso zvinokurumidza kudzvinyirirwa kunze. crankcase ventilation yakavharwa.
mhedziso
Kana iwe ukaenzanisa Subaru injini nemamwe Japanese simba zvirimwa, saka havagoni kunzi akavimbika. Tichitarisa wongororo yevaridzi, mota dzinobva painjini idzi dzinotyaira anenge 100 zviuru zvemakiromita. Zvadaro, zvingave zvakakosha kutsiva zvindori zvemafuta. Kazhinji, hupenyu hweinjini hunoenderana nemamiriro ekushanda kwayo uye kugadzirisa panguva.
