Injini ye-hemi engu-5.7 - izindaba ezibaluleke kakhulu mayelana neyunithi

Injini engu-5.7 Hemi ingeyeqembu lamayunithi akhiwe ngabakwaChrysler. Isici esiphawulekayo senjini ukuthi ifakwe i-semicircular combustion chamber. Umkhiqizo wokukhathazeka waseMelika wethulwa okokuqala ngo-2003 ngesikhathi sokuqala kwemoto ye-Dodge Ram - yahlanganiswa nenjini ye-Magnum 5,9. Sethula ulwazi olubaluleke kakhulu ngaye.

5.7 Injini ye-Hemi - ulwazi oluyisisekelo

I-2003 ayihlotshaniswa hhayi kuphela ne-Premiere ye-Dodge Rama, kodwa futhi nomndeni wonke wezinjini zesizukulwane sesithathu. Eyokuqala injini kaphethroli engu-8cc V5. cm / 654 l enekhodi Ukhozi. Ithathe indawo ye-Magnum V3 block okukhulunywe ngayo esingenisweni. Injini engu-5,7 Hemi isetshenziswe kumamodeli eChrysler Dodge Durango, Charger, 8C, Magnum R/T, Jeep Grand Cherokee kanye neCommander.

Idatha yezobuchwepheshe yeyunithi ye-Chrysler

Injini enama-stroke amane ngokwemvelo inama-V-cylinder ayisishiyagalombili nama-valve amabili isilinda. Isistimu yesitimela ye-valve isekelwe esikhathini se-valve ye-OHV. Bore 99,49 mm, unhlangothi 90,88 mm, displacement 5 cc.

Kumamodeli okuqala - kuze kube ngu-2009, isilinganiso sokucindezela sasingu-9,6: 1. Kamuva kwaba ngu-10,5:1. Injini engu-5.7 Hemi ikhiqize phakathi kuka-340 no-396 hp. (254-295 kW) kanye ne-torque engu-08-556 Nm/3,950-4,400 Umthamo kawoyela wenjini wawungu-6,7 l/l. Ngokulandelayo, isisindo seyunithi sifinyelele kumakhilogremu angama-254.

I-Engine design 5.7 Hemi - yiziphi izixazululo zokuklama ezisetshenzisiwe?

 Injini engu-5.7 Hemi yaklanywa kabusha ngokuphelele kusukela phansi kuya phezulu ngebhulokhi yesilinda yensimbi enejakhethi ejulile kanye ne-engeli yodonga engu-90° yesilinda. Amamodeli angaphambi kuka-2008 ayenezindandatho ezibanzi ezingu-1,50/1,50/3/0mm, kuyilapho amamodeli ka-2009 ayefaka iphakheji engu-1,20/1,50/3,0mm. 

Onjiniyela baphinde banquma ukufaka i-cast ductile iron crankshaft, eyayifakwe amabhawodi amane kubheyili ngayinye enkulu. I-camshaft nayo yenzelwe ukuphakama okuphezulu ukunciphisa ubude bama-pushrods. Ngenxa yalesi sizathu, uchungechunge lwesikhathi lude futhi lutholakala phakathi kwamabhange angama-cylinder.

I-Hemi 5.7 iphinde ifakwe amakhanda esilinda e-aluminium ephambanisayo, ama-valve amabili nama-spark plugs isilinda ngasinye. Igumbi eliyisicaba nalo lenziwe elinamashalofu nhlangothi zombili, okwandisa ukusebenza kahle kweyunithi yokushayela. 

Izilawuli ezinikela ekusebenzeni okuhle kwenjini

Ukulawula kokuqala okufanele kubhekwe yi-camshaft. Unomthwalo wemfanelo wokusebenza kwama-valve okungenisa nawokuqeda ngenxa yama-pushers atholakala kuma-valve levers. Izingxenye ezibalulekile zihlanganisa neziphethu zevalve yezinyosi kanye nama-tappets angama-hydraulic roller.

Abaklami baphinde bakhetha uhlelo lokuvala i-Multi-Displacement System cylinder. Lokhu kuholele ekwehleni okukhulu kokusetshenziswa kukaphethiloli kanye nokukhipha umoya. Ubuchwepheshe busebenza ngokuvala uphethiloli kumasilinda amane - amabili lilinye - bese ushiya amavalvu okukhiphayo nawokukhipha evalekile, okulawula ukuhamba kukawoyela ngeziphakamisi zamavalvu ngazinye. I-Hemi 5.7 iphinde ifakwe i-electronic throttle esebenza ngamandla.

Injini yomsebenzi 5.7 Hemi

Endabeni yale yunithi yamandla, izinkinga zingavela ngokugijima kwe-150-200 km. Lokhu kusebenza ekungasebenzi kahle okuhambisana neziphethu ze-valve eziphukile noma ukunamathela kanye nokulimala kwama-lever rollers. Lokhu kuvame ukuhambisana nezinkinga zokushisa kanye nokukhanya kwe-Check Engine. Ukungazinaki lezi zimpawu kungase kube ngenxa yokwehluleka okukhulu kwe-camshaft noma izinhlayiya zensimbi emafutheni.

Ingabe kufanele ngikhethe injini engu-5.7 hemi?

Naphezu kwalezi zinkinga, injini engu-5.7 Hemi iyiyunithi ekahle, ehlala isikhathi eside. Esinye isici esinomthelela kulokhu ukuthi inomklamo olula - akukho turbocharging esetshenzisiwe, eyandisa kakhulu impilo yayo yesevisi. Okubi, nokho, ukusetshenziswa kukaphethiloli okuphezulu kakhulu - amalitha angama-20 ngebanga lika-100 km.

Ngokulungiswa okujwayelekile kanye nokushintsha kukawoyela njalo ku-9600 km, injini izokubuyisela ngokusebenza okuzinzile kanye nezinga eliphansi lokuhluleka. Kufanele futhi kukhunjulwe ukuthi ukusebenza kahle kweyunithi yamandla, kuyadingeka ukusebenzisa uwoyela nge-viscosity ye-SAE 5W20.

Isithombe. okuyinhloko: Kgbo nge-Wikipedia, CC BY-SA 4.0