Lub sab hauv combustion cav thiab nws cov kev siv nyob rau hauv lub ntiaj teb no niaj hnub

Cov hauj kiv puag ncig, uas tshwm sim nyob rau hauv lub lig puv 19 xyoo pua, ua ke nrog ib tug xov tooj ntawm ingenious discoveries coj mus rau lub invention ntawm xws li ib tug ntaus ntawv pab tau raws li ib tug nrog combustion engine. Tsaug rau no noob neej tau muaj peev xwm mus radically hloov lub ntiaj teb thiab ua ib tug tseem ceeb kauj ruam nyob rau hauv txoj kev loj hlob ntawm kev vam meej. Niaj hnub no, cov xyaw cov lug siv tsis tau tsuas yog nyob rau hauv lub tsheb lag luam, tab sis kuj nyob rau hauv kev lag luam, qhov uas lawv yog ib tug tseem ceeb ib feem ntawm tag nrho cov txheej txheem saw ntawm ntau lawm. Tag nrho cov factories, nroj tsuag thiab lwm yam kev chaw nyob ntawm seb ncaj qha rau ntawm cov chav nyob nrog combustion xyaw, uas tso cai rau mus nqa tawm tag nrho cov tsim nyog ua hauj lwm.

Lub sab hauv combustion engine yog ib hom ntawm lub cev muaj zog thermal tshuab, nyob rau hauv uas lub zog ntawm cov kua los yog gaseous carbonaceous roj hloov dua siab tshiab rau hauv cov neeg kho tshuab ua hauj lwm. Vim ib tug instantaneous combustion ntawm cov roj nyob rau hauv cov ua hauj lwm hauv cheeb tsam ntawm lub tog raj kheej yog muab los ntawm rotationally reciprocating zog, uas lub ntsiab lub crankshaft. Hais tias qhov no yog lub essence ntawm lub cav khiav ntawm cov roj.

Feem ntau, lub internal combustion engine, thiab nws cov ntsiab yam ntxwv yog paub mus rau lub dog dig tus neeg piv txwv li lub tsheb. Sawv daws yeej paub hais tias lub hwj chim ntawm lub cav nyob rau qhov ntim ntawm nws cov thooj voos kheej kheej, vim hais tias lawv yog bulkier tshaj qhov ntau roj mix yuav ua li cas, yog li ntawd tej yam nyob rau crankshaft, thiab yuav muaj zog. Yog hais tias koj tham txog muaj xyaw, uas yog ntsia tau rau hauv fais fab nroj tsuag, muaj nroj tsuag, txias mills thiab lwm cov chaw, lawv lub hwj chim yog ntsuas nyob rau hauv ntau pua pua ntawm horsepower.

Nyob rau hauv qhov system lag luam los ntawm ib lub roj tas muaj xws li ib tug txias system thiab lubrication. Txij li thaum nyob rau hauv tus txheej txheem thiab muaj ib tug tseem ceeb npaum li cas ntawm tshav kub mus rau tiv thaiv kom txhob overheating ntawm lub cav nws yog ua ib tug tshwj xeeb txias tsho. Tsaug rau nws, muaj ib tug txias lub tog raj kheej, thiab lub internal combustion engine yog peev xwm ua hauj ntev tsis muaj ib tug so. Nyob rau hauv tas li ntawd, lub ib feem ntawm tej cav yog ib tug lubrication system uas txo coj tus nqi ntawm tag nrho cov mus qhov chaw. Qhov zoo tshaj ntawm cov roj cav nyob heev npaum li cas, li ntawd rau ntau hom kev xyaw ua txawv roj uas tej zaum yuav hluavtaws, semi-cua thiab mineral. Tus tshiab engine, feem ntau yog fueled los ntawm ntxhia roj, vim hais tias nws muab qhov zoo tshaj plaws tshuaj pleev qhov chaw tshiab rau txhua lwm yam. Tom qab, nws yog hloov nrog ib tug hluavtaws los yog semisynthetic, nyob ntawm seb cov kev cai ntawm lub chaw tsim tshuaj paus.

Tag nrho xyaw ntawm no hom yuav muab faib ua ob yam loj xws li:

1. Ob-mob stroke engine combustion. Ntsia, feem ntau yog nyob rau hauv lub teeb tsheb ntawm maus taus hom, lub scooter, scooters thiab mopeds. Tej lub cev muaj zog muaj xws li crankcase, nyob rau hauv uas nyob rau ob sab yog mounted los ntawm bearings crankshaft thooj voos kheej kheej. Txhua yam ntawm cov thooj voos kheej kheej yog ib tug piston uas yog ib tug hlau beaker belted tshwj xeeb rings, kos nyob rau hauv lub zawj. Lawv yuav tsum tau pa gases tsis poob mus rau hauv cov kis ntawm tus piston thiab lub tog raj kheej tshuab. Cov yav tas yog kev cob cog rua rau ib tug txuas pas nrig los ntawm ib tug tshwj xeeb bushing (ntiv tes), uas nyob rau hauv lem hau lub rectilinear tsab ntawv tsa suab mus rau lub crankshaft.
2. Plaub-mob stroke nrog combustion engine. Nws muaj ib tug ntau cov qauv, vim uas tag nrho cov muab-Translational tsab ntawv tsa suab yog nqa tawm nyob rau hauv 4 moos mus. Hais tias xws li xyaw yog nruab nrog tag nrho cov tsheb, vim hais tias qhov no system muab ntau zog, uas yog tsim nyog rau lub zog ntawm hnyav tsheb.

Niaj hnub nimno hauv combustion xyaw cov lossi tau zoo tuaj, ua nyob rau ib theem ntawm muaj zog efficiency thiab muaj peev xwm yog ntau zog. Txawm tias muaj tseeb hais tias los ntawm ib tug tej taw tes ntawm view, lawv muaj teeb meem rau cov ib puag ncig, lawv tseem nyob hauv thawj qhov chaw nyob rau hauv cov nqe lus ntawm daim ntawv thov ntawm tag nrho cov lwm yam views ntawm lub motors. Electric motors yuav tsis tau lwv nrog lawv, vim hais tias lawv muaj ntau sab peev xwm.