Tsheb, Classic
Yuav ua li cas mus saib hauv lub thermal kis ntawm piston rings: cov kws muaj txuj tswv yim
Thaum engine loj kho feem ntau muaj cov lus nug txog kev xaiv txoj cai thermal kis. Piston nplhaib nrog loj heev ib yam nyob rau hauv lub xauv thiab axially yuav ua hauj lwm zoo. Tab sis txawm zuj zus, yog tias cov kis yog heev me me tau noj lawm. Nyob rau hauv cov ntaub ntawv no, lub cav yuav tsis ua hauj lwm rau ib tug ntev lub sij hawm thiab tom qab ib tug ob peb txhiab kilometers dua thov rau lub bulkhead. Wb tham txog yuav ua li cas los xaiv txoj cai thermal kis piston rings thiab yuav ua li cas nws, nyob rau hauv qhov tseeb, yuav tsum tob tau.
Txheej txheem cej luam thiab Concepts
Lub piston muaj peb ib ncig, txhua tus uas ua ib txog kev ua. Lub sab sauv ob yog siv kom muaj lub compression nyob rau hauv lub engine. Yog hais tias lawv tshwm sim los yog mus txog ib tug tseem ceeb heev txog qib uas coj thiab tsim kua muag, ces poob rau hauv lub dynamic yam ntxwv ntawm lub hauv combustion engine, roj noj qab thiab lwm yam teeb meem. Lower nplhaib hu ua "STEM". Los ntawm lub npe nws yog ib qhov tseeb nws lub sij hawm thaum lub sij hawm kev lag luam ntawm lub hwj chim unit.
Nyob rau hauv lub lag luam ntawm lub internal combustion engine hlau qhov chaw cuag. Rau qhov yooj yim vim li cas, lub thermal kis ntawm piston rings yog txo. Yog hais tias nws yog Ameslikas khaws incorrectly, uas yog tsawg tshaj li tus pub, ces rau xeeb cov kev khiav hauj lwm kub ntawm lub engine piston yuav kos tus kheej kheej phab ntsa.
Yuav ua li cas yog lub thermal kis ntawm piston rings WHA?
Ua ntej cov tswv yim ncaj qha mus rau cov nuj nqis, nws yuav tsum tau muab sau tseg tias ntsuas ntawm cov kis yuav tsum tau ua nyob rau hauv unheated qhov chaw. Thaum zoo li no nplhaib yog yuav tsum tau muab tso rau hauv lub tog raj kheej. tshwj xeeb probes los yog daim hlau yog siv los txiav txim seb tus parameter. Nyob rau hauv Feem ntau, lub pub tus nqi ntawm cov kis mas nws txawv ntawm 0.25 mus 0.5 hli. Tab sis nyob ntawm seb lub hom cev muaj zog thiab nws cov kev hloov kho, cov ntaub ntawv no yuav sib txawv, tiam sis nws yog pom zoo kom mus tham nrog cov pre ICE cov ntaub ntawv.
Yuav ua li cas yog lub thermal kis ntawm piston rings yuav tsum nyob rau Vaz tsheb? Rau compression rings nws yuav tsum tau nyob rau hauv ntau 0.25-0.4 hli, thiab rau cov roj tswj rings - 0.25-0.5 hli. Ib zaug ntxiv, cov nuj nqis tej zaum yuav ib nyuag txawv, yog li ntawd koj yuav tsum tsom ntsoov rau cov kev cav qauv.
kev ua tau zoo ntsuas technology
Tus thawj tshaj plaws ua yog yuav coj lub nplhaib rau sab ntawm lub tog raj kheej. Tom qab ntawd nws muab tso rau hauv lub txheej ib feem ntawm lub allotted qhov. Tom ntej no koj yuav xav tau ib tug txheej ntawm ib daim hlab nyob rau hauv uas cov kis yog txiav txim. Yog hais tias lub nplhaib yog muab tso rau ncaj qha hauv lub tog raj kheej, cov kev ntsuam yuav tsum tau nqa tawm nyias, vim qhov kev ncua deb ntawm lub xaus tej zaum yuav txawv.
Tus thawj tshaj plaws ua yog mus rau qhov chaw lub piston nplhaib nyob rau hauv cov roj cav. Raws li ib tug zaum kawg tshwj xeeb tseem ceeb no tsis yog, raws li nyob rau hauv lub lag luam yuav hlawv txhua yam. Ntxiv nplhaib tsiv raws lub tog raj kheej phab ntsa. Thiab qhov no yuav tsum tau ua xwb nyob rau hauv lub tog raj kheej, qhov twg lub nplhaib yuav tsum tau siv nyob rau hauv lub neej yav tom ntej. Nws yog tshwj xeeb yog yooj yim los mus nqa tawm no muab xam, yog hais tias tus piston twb tau muab tshem tawm. Nyob rau hauv cov ntaub ntawv ntawm ib tug tsis ntev los no tawm sufficiently thaiv lub bore nplhaib los ntawm 3-5 hli, kwv yees li ntawm qhov chaw uas nws yuav tsum tau nyob rau hauv lub internal combustion engine thaum lub sij hawm lub lag luam. Tom qab uas peb siv ib tug txheej ntawm probes (tuav) thiab tau qhov yuav tsum tau qhov tseem ceeb. Siv "ib phau ntawv" thaum lub khaws cov clearance ntawm piston rings. Diesel "Ford Escort '1.6, rau Piv txwv li, yuav tsum tau muaj ib yam ntawm 0.3-0.5 mm rau cov sab sauv compression nplhaib thiab 0.2-0.45 mm rau STEM.
Complex kho CPG
Lub thiaj li hu ua "kapitalka" Cav Troubleshooting implies tag nrho lub tog raj kheej-piston pab pawg neeg, vim hais tias nws yog kev kawm mus rau lub siab tshaj plaws thermal loads thaum lub sij hawm lub lag luam. Li ntawd, cov pistons, compression thiab STEM rings kuj raug ntau zog coj. Nyob rau hauv tej rooj plaub, qhov twg lub nplhaib twb tsis tau mus txog ib tug tseem ceeb coj lawv tawm. Nyob rau feem ntau niaj hnub ICE kis ntawm 1 hli twb xam tau tias yog ib qho tseem ceeb, thiab nyob rau hauv cov ntaub ntawv no yog tsim nyog los hloov lub rings. Yog li ntawd, thaum lub cav overhaul yog pom zoo kom hloov tag nrho cov rings rau lub pistons, txawm yog hais tias lawv tseem haum. Peb xav tau no mus 50 000 kilometers rov mus lauj cov lub cev muaj zog.
Nws yuav tsum tau yuav tsum to taub hais tias tsis yog ib txwm clearance rau tus thawj thiab thib ob compression rings yog tib yam. Ib tug piv txwv yog lub domestic hnyav machinery. Piv txwv li, lub thermal kis ntawm piston rings "Kamaz" yuav tsum zoo li no:
- thawj compression nplhaib - 0.20-0.40 hli (tshiab);
- lub thib ob - 0.30-0.50 (tshiab);
- STEM 0.25-0.50 (tshiab).
Nyob rau hauv cov ntaub ntawv no, lub pub coj rau tag nrho cov hom ntawm lub nplhaib yuav tsum tsis txhob ntau tshaj 1 hli. Txawm tias ib tug 0.9 hli muaj peev xwm twb xam tau tias yog ib qho tseem ceeb. Txawm tias feem ntau tsis muaj disassembly CPG to taub hais tias lub nplhaib yog hais kom hloov.
Nce roj noj
Feem ntau cov niaj hnub tsheb manufacturers kom lub clearance ntawm piston rings nyob rau hauv lawv xyaw. Yog hais tias rau qee yam ntawm lub internal combustion engine yog ib qho tseem ceeb rau lub 1 hli, tab sis tus tshiab cav los ntawm lub "BVM" los yog "Audi" 12 mm - ib tug kis tshiab engine rings tsis muaj ib tug mus dhia. Ntawm no koj yuav tsum to taub ib qho tseem ceeb point.
Lub fact tias cov combustion ntawm roj cua sib tov tsim gases uas nkag mus rau lub zawj ntawm lub piston. Raws li, lawv pib tsim siab rau sab hauv ntawm lub nplhaib, uas nws clamp lub tog raj kheej phab ntsa.
Uas yog vim li cas thaum lub hauv combustion engine ntawm dawb thiab tsis muaj kev ceev downforce yog tsis raws li zoo raws li nyob rau high school loads. Yog vim li cas yog hais tias tus nqi ntawm cov roj nyob rau hauv lub combustion chamber yog ho sib txawv. Qhov thib ob compression nplhaib ib feem yog tus scraping teeb meem, tshem cov zaj duab xis los ntawm lub tog raj kheej. Yog hais tias nws yog hnav, cov roj nplua nyeem noj qab ntawm lub sij hawm, tshwj xeeb tshaj yog nyob rau hauv dawb thiab tsis muaj engine speeds.
Thermal kis piston rings Vaz-21083
Domestic tsheb 2108, zoo dua lub npe hu ua lub "yim" los yog "txaug", yuav khav ib tug tsis tshua txhim khu kev qha engine. Tab sis yog nws cov rooj saib xyuas thiab khiav ib tug ntau. Txawm li cas los, Yog hais tias loj kho yuav tsum tau them tshwj xeeb mloog mus rau lub thermal kis. Muaj coob tus neeg tsis muab tej tseem ceeb rau qhov no thiab tawm hauv lub qub nplhaib. Tab sis qhov no overhaul yuav coj tsis tau leej twg tau, tshwj xeeb tshaj yog yog hais tias tus cav bulkhead ua vim muaj zog roj noj.
Muaj ntau ntau txawv nta. Nyob rau hauv kev, lub siab tshaj plaws clearance nyob rau hauv tag nrho cov rings - tsuas yog 0.15 hli. Yog li rau nominal 1 compression ntawm 0,04-0,075 hli, rau qhov thib ob - 0,03-0,065 hli thiab rau STEM - 0,02-0,055 hli. Nws yog heev tsim nyog mus cuag siab precision. Qhov zoo tshaj plaws kev xaiv - nkag siab grooves thiab nyob rau hauv piston rings. Koj siv tau ib tug micrometer thiab ib co ntawm cov probes. Cov kev ntsuam nyob rau piston yuav tsum tau ua nyob rau hauv ob peb qhov chaw nyob ib ncig ntawm qhov ib ncig.
Ob peb tseem ceeb nuances
Yuav ua li cas los kho yuav khaws los ntawm lub cua sov kis ntawm piston rings ntawm lub diesel cav los yog roj av nyob lub neej ntawm tus kheej kheej-piston pab pawg neeg thiab, nyob rau hauv qhov tseeb, lub rings. Scuffing vim lub tsis sib haum xeeb rings ntawm lub tog raj kheej ua rau yus ib tug tsis tsis tau tsuas yog compression tab sis kuj geometry. Txaus siab rau qhov no me me, txij li thaum los cov ua hauj lwm kev mob yuav tsum tau resurfacing, thiab nyob rau hauv qhov loj tshaj plaws mob - ris lub tog raj kheej.
Yuav ua li cas yog tsis ncaj ncees lawm nrog ib tug me ntsis kis
Nws yuav zoo li uas nyob rau hauv thiaj li yuav ua tau zoo compression uas yuav tsum tau kis raws li me me li sai tau. Nyob rau hauv rooj plaub no tus roj yuav tsis hlawv. Tag nrho cov no yog tsuas thwj ib nrab xwb. Qhov tseeb yog hais tias yog tus expansion kis yuav muaj tsawg tshaj li cov pub, yuav muaj ib tug ua txhaum ntawm lub tshav kub pauv. Qhov no yog tej vim muaj zog txhuam lub ntsej lub tog raj kheej. Raws li ib tug tshwm sim, muaj burrs, thiab ceev coj ntawm lub tog raj kheej lub nplhaib. Nyob rau hauv hnub kawg, tus compression nplhaib tsis tsim txaus siab thiab STEM tawm roj rau saum tus thooj voos kheej kheej. Tom qab ib co sij hawm, lub cav fais fab yog poob, tsub kom txaus ntawm lubricant thiab deteriorates nrog combustion stability.
Yuav kom saib lub ntsab lug
Raws li koj tau pom, nws yog tsis tshua muaj ib qho tseem ceeb kom paub tias dab tsi yog yuav tsum tau kis piston rings rau ib qho hom engine. Txhua Chaw tsim tshuaj paus qhia txog cov nominal thiab tau tus nqi. Lawv thiab xav kom ua raws li. Yog hais tias lub overhaul ntawm lub nplhaib yog hnav, hais 50%, ces nws yog ib qho zoo los hloov ib lub tshiab.
Tsis li ntawd, phem nce tshaj tsis clearance. Vim hais tias ntawm lub yav tas tsub kom qhov kub thiab txias nyob rau hauv lub combustion chamber, lub tog raj kheej ua ntawv thov cov neeg kho tshuab kev puas tsuaj. Tag nrho cov no tau nyob rau hauv ib tug ntxiv tseem ceeb cov nqi. Qhov ntawd tsis yog tshwm sim, nws yog tsim nyog los raug xaiv lub clearance ntawm piston rings thiab coj xwb los cia siab qhov twg los. Cov lus qhia rau cov lag luam thiab cov txij nkawm ntawm txhua lub tsheb no muaj nyob rau cov ntaub ntawv koj xav tau, thiab lawv yuav tsum tau thov nyob rau hauv xyaum.
Similar articles
Trending Now