Compression - Compression Cav yog ... - Yuav ua li cas yog nws?

Compression - txiav txim engine durability tau. Nws yog los ntawm no daim duab cov neeg kawm ntawv ntawm coj nyob rau ntau yam tsav qhov chaw. Yog li ntawd, cov neeg tsav tsheb yog ua los pab txhawb nws nyob rau hauv ntau txoj kev. Cav Compression - dab tsi yog nws thiab yuav ua li cas yog nws ntsuas? Nyob rau hauv hnub no tus tsab xov xwm peb yuav sim mus piav qhia txog nyob rau hauv kom meej qhov no tshwm sim, raws li zoo raws li kawm tau li cas los ntsuas koj tus kheej.

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Compression - qhov no yog lub siab tshaj plaws degree ntawm huab cua siab nyob rau hauv lub combustion chamber, uas yog tiav nyob rau hauv lub sij hawm ntawm lub piston ntawm TDC thaum lub sij hawm compression stroke. Lub magnitude ntawm no nyob rau tus yam ntxwv ntawm lub cav serviceability thiab durability ntawm tag nrho nws cov mechanisms. Nyob rau hauv cov lus yooj yim, cov compression - ib qho kev ntsuas ntawm tus nqi ntawm lub cav, uas yog lub ntsiab zoo tshaj ntawm lub xeev ntawm nws noj qab haus huv.

Ua li cas nws muaj kev cuam tshuam?

Los ntawm cov theem ntawm magnitude ntawm lub qhov tseem ceeb nyob ntawm seb ntau dab, xws li:

1. Lub tiav ntawm roj combustion nyob rau hauv lub Chamber.
2. Roj noj.
3. Yog lag luam ntawm lub tog raj kheej. Tsis tshua muaj compression chav kawm ntawv tsub kom kev pheej hmoo ntawm engine triplets.
4. Tejzaum ntawm pib lub engine. Yog hais tias tus nqi yog qis dua li ib txwm compression ratio, no engine yog heev yooj yim mus ua, tshwj xeeb tshaj yog "nyob rau hauv ib tug txias."
5. Lub hwj chim ntawm lub hwj chim unit. Thaum lub sij hawm, nws yuav poob. Lub sab qib ntawm compression, lub qis lub hwj chim ntawm lub tsheb. Raws li, qhov no implies tsis muaj zog yam ntxwv tsav tsheb puab thiab acceleration.

Vim li cas txos compression

Ib tug ntawm lub ntsiab yog vim li cas rau cov uas tsis muaj compression - yog lub engine overheat. Rau heev kub nyob rau hauv lub cev muaj zog thooj voos kheej kheej tsim burrs. Lawv kuj yuav tshwm sim nyob rau hauv lub pistons. Tsis ntev los no uas ua yaj los yog hlawv los ntawm. Tsis tshua muaj compression (Vaz "kaum" tsev neeg nrog rau) qhia cov coj rings partitions. Vim rau tag nrho cov cim hwj chim noticeably lub sij hawm, yog li ua roj noj.

Tsis tas li ntawd ib tug ntawm cov yog vim li cas rau lub poob ntawm compression yog ib tug txhaum nyob rau hauv lub sij hawm poob system. Nyob rau hauv cov ntaub ntawv no, muaj ib tug yuav muaj burnout li qub. Tej kev nthuav dav yog tsis raug mus rau restoration. Hlawv-tawm li qub yuav tsum tau hloov tam sim ntawd, los yog poob nyob rau hauv lub hwj chim thiab ib qho kev nce nyob rau hauv kev noj roj yuav tsis nres.

Incidentally, ib tug ntawm cov qub ua burnout, thiab raws li lub caij nplooj zeeg compression yog kev lawv haum. Yog hais tias nyob rau hauv lawv tsis muaj qhov tsim nyog thermal kis, nws yog ua tau los tham txog ib tug loj txhaum nyob rau hauv lub tsev system. Nyob rau hauv cov ntaub ntawv no, lub qub yuav raug kaw tsis tau kiag li. Tab sis kuj yog ib tug loj kis tseem yog fraught nrog nws cov txim. Piv txwv li, qhov no yuav ua rau ib tug tsis muaj lub valve qhib. Vim li no, lub tog raj kheej tau txais tsawg cua. Raws li ib tug tshwm sim - ib tug khob qhov valve cover.

Ncos sharply vim compression thiab burnout lub tog raj kheej taub hau gasket. Nyob rau hauv no qhov teeb meem no, lub tso gases yuav tsis mus los ntawm lub yam khoom uas kom lub tsheb tsis nrov thiab tso manifold, thiab cov txoj kab ncaj nraim los yog nyob rau hauv cov roj nyob rau hauv lub cav txias system.

Yuav ua li cas lwm tus muaj peev xwm taw tes rau ib tug uas tsis muaj compression piv? Lub ntsiab yog vim li cas rau cov uas poob compression, - ib tug deterioration ntawm piston rings thiab lub tog raj kheej phab ntsa los tsim. Ntawm no qhov teeb meem yog ntxiv nrog nce tau ntawm roj thiab roj av.

Oddly txaus, tab sis txawm cov huab cua lim yuav ua rau cov uas tsis muaj compression. Lub fact tias ib tug daig caij tsis pub huab cua mus rau hauv lub tog raj kheej. Li ntawd, cov tsim heev ntshiv sib tov, suab free ntawm oxygen. Nyob rau hauv ib co hom ntawm cov lag luam nws yog dab tsi, tab sis thaum cov roj yog tov nyob rau hauv xws proportions tag nrho cov sij hawm, muaj yog vim li cas yuav tsum tau alarmed.

Qhov kawg yog vim li cas ntawm poob nyob rau hauv compression - ib tug keej nyob rau hauv lub tog raj kheej taub hau. Feem ntau, nws tshwm sim vim engine overheating. Tiam sis yog tias koj xav seb dab tsi ua rau cov uas tsis muaj degree ntawm compression vuam txwv ntev yog nraus cov txuas hniav, compression no. Es, muaj ib tug overload nyob rau hauv lub tsheb ntawm cov tsheb, tsis ntau.

Yuav ua li cas yog lub cev cav compression?

Yuav ua li cas yog nws - ib tug compression phenomenon - peb twb pom. Tam sim no ib tug me ntsis txog cov lej. Tiam sis ua ntej nws yuav tsum tau muab sau tseg hais tias qhov no xam yog teem rau txhua engine nyias, lawv manufacturers. Pes tsawg compression nqi qhia nyob rau hauv lub khiav hauj lwm cov lus qhia ntawm koj lub tsheb. Rau petrol xyaw, qhov no qhia yuav tsum phim qhov kev txiav txim ntawm 9.5-10.5 atmospheres. Compression VAZ'ov "kaum" tsev neeg me ntsis siab dua - 11 atm. Nyob rau diesel xyaw, tus nqi ntawm lub compression piv yog los ntawm 28 mus 32 atmospheres. Nyob rau hauv no variation ntawm cov thooj voos kheej kheej yuav tsum tsis txhob ntau tshaj 0.5-1 atm nyob rau hauv roj a thiab 2.5-3 atm nyob rau hauv diesel fais fab nroj tsuag. Cov kawm txawv ntawm compression vuam txwv ntev yog lub txiaj ntsim ntawm ntau hom ntawm roj tiv cav tseb. Yog hais tias lub roj av nrog combustion engine, nws teeb nrog kev pab los ntawm ib tug muaj, ces tus diesels yog compressed. Li no, xws txawv compression. Qhov no ua rau diesel xyaw ntau check thiab hnav-resistant. Xyaum lawm hais tias lub siab lub Hoobkas compression ratio, qhov ntau haib thiab yig engine.

Kws txawj hais tias lub compression piv tej zaum yuav txawv, dua li cov khov kho kev mob ntawm lub internal combustion engine. Qhov no tej zaum yuav tshwm sim vim qhov txawv ntawm tej yam kev mob, nyob rau hauv uas ntsuam tau ua.

Muaj ntau ntau yam uas ua los ntawm lub ntsuas ntawm compression tej zaum yuav yog nyob ntawm seb:

1. Lub volume ntawm huab cua uas nkag mus rau hauv thooj voos kheej kheej.
2. engine kub.
3. crankshaft kev sib hloov zaus.

Nws tseem yog tsim nyog rau ntsiab hais tias lub khov roj tso rau lub tog raj kheej phab ntsa tseem muaj txhawb rau kev nce rau hauv tus nqi ntawm cov compression ratio. Qhov no tshwm sim yog cai vim lub tsiaj hiav txwv sib txawv nruab nrab lub mating ntsiab. Rau hauv sib piv, lub compression yog txo vim muaj ib tug ntau npaum li cas ntawm cov roj uas nkag mus rau hauv combustion chamber.

Tsis txhob ntshai thiab xav paub yog hais tias tus nqi dhia ntawm lub tsheb - 200-250 txhiab kilometers, thiab kev ntsuas kev nyeem ntawv yog heev loj (xws li, 10 atmospheres ntawm ib tug roj av nrog combustion engine). Yog vim li cas rau qhov no tej zaum yuav tsub zuj zuj ntawm tuab khaubncaws sab nraud povtseg ntawm hmoov quav rau combustion chamber ntsiab. Raws li tsub zuj zuj ntawm cov deposits yog tsis ntim ntawm lub combustion chamber nws tus kheej, thiab qhov no ua rau yus xws doubtful tau.

Nyob rau hauv tej rooj plaub, lub compression piv yog nce?

Nyob rau hauv tas li ntawd mus rau cov yam, qhov taw qhia tej zaum yuav ua vim:

• Kuaj pom ntawm cov roj rau hauv lub combustion chamber.
• High engine kub.
• Tag nrho cov throttle.

Cov neeg tsav tsheb hais tias thaum ntsuas compression yog tsim nyog them sai sai mus tsuas yog peb yam: engine kub, roj thiab throttle txoj hauj lwm.

Yuav ua li cas feem ntau yuav tsum ntsuam?

Cov neeg tsav tsheb hais tias los ntsuas cov neeg kawm ntawv ntawm compression uas yuav tsum tau txhua txhua 10-40 txhiab kilometers, thiab tag nrho cov qhov tseem ceeb yog kaw nyob rau hauv ib phau ntawv. Yog li, koj yuav lossi paub dab tsi lub xeev yog koj cav thaum lub caij. Qhov no yog kom tsis txhob muaj xws teeb meem, raws li cov overheating ntawm cov lub cev muaj zog burnout li qub, pistons thiab coking.

Nyob rau hauv dab tsi tshwm sim yuav tsum tau ua lwm cov kev ntsuam?

Nws yog ib qho tseem ceeb heev kom ua raws li cov kev cai ntawm kev ntsuas ntawm qhov ntsuas no, vim hais tias nws muaj feem xyuam rau cov neeg ntawm kev ntsuas, thiab raws li, ntxiv lub neej "lub siab" ntawm koj hlau nees. Yog li ntawd, thaum ua hauj lwm nrog Compression yog ib qho tseem ceeb them sai sai mus rau lub ntsiab lus nram qab:

• engine kub. Metering lub cev muaj zog yuav tsum tau sov so, thiab qhov kub thiab txias ywj faj ywj fwm ntawm 40-60 degrees Celsius.
• Cov roj mov yuav tsum raug kaw.
• Them roj teeb. Nws voltage yuav tsum muaj tsawg kawg yog 12 thiab tsis ntau tshaj li 14 volts.
• Tsawg humidity. Nws tsis pom zoo kom ua ntsuas nyob rau hauv los nag huab cua.
• Ua ntej ntsuas unscrew tag nrho cov taws tswm ciab ntawm lub thooj voos kheej kheej.
• Tua lub ignition.

Compression kev ntsuas txoj kev

Ua ntej koj yuav pib, koj yuav tsum tau kom paub tseeb tias seb tus ntaus ntawv tiag tiag (Compression) fits mus rau lub engine koj lub tsheb. Tsim qauv tsheb muaj ib tug me me ntsis, yog li lawv yog yooj yim mus siv rau ib tug 16-valve powerplants.

Ntsuas lub compression yuav ua tau ob qho tib si nyob rau hauv lub qhib thiab kaw throttle. Kws txawj pom zoo kom mus ua ntsuas nyob rau hauv ob leeg. Qhov no yuav txiav txim seb ib tug txhaum nyob rau hauv lub cav (yog tias muaj) uas muaj ntau precision.

Nyob rau hauv rooj plaub Yog hais tias lub ntsuas tus nqi ntau zog los tsis, nws yog ua tau kom ib tug mob - koj cav yog cov thiab xav tau kev pab ceev kho. Tab sis tsis txhob hnov qab tias muaj me ntsis variation nyob rau hauv qhov tseem ceeb ntawm cov thooj voos kheej kheej, uas peb hais ua ntej lawm.

Nyob rau hauv thiaj li yuav ua ib tug muaj tseeb kev ntsuas, koj xav tau ib tug neeg pab. Yog li ntawd, pib qhov twg ua hauj lwm? Koj yuav tsum xub nias lub compression gauge mus rau lub qhov nyob rau hauv lub tog raj kheej, uas yog, rau qhov chaw uas koj spun taws tswm ciab. Thaum lub sij hawm no, lub pab muaj xws li ib tug oob khab. Cov yav tas yuav tsum kav kwv yees li 4-6 nas this. Tom ntej no rau lub siab gauge qhia tau hais tias tus nqi - lawv yuav tsum tau sau ntawv.

Tom qab Xab compressed nyob rau hauv ib tug lub tog raj kheej mus rau lub tom ntej no pass. Nws yog soj ntsuam nyob rau hauv ib txoj kev zoo. Tej manipulations yuav tsum tau rov qab nrog tag nrho cov thooj voos kheej kheej. Yog li txhua cais tus nqi yog kaw nyob rau hauv cov phau. Desirably, cov khoom rau roj teeb voltage ntsuas muab 13-13.5 volts. Qhov no yuav muab rau peb ib tug mov ntawm pib tam sim no, raws li nrog txhua txhua ob tig oob khab roj teeb xwb dauv mus rau ib tug tej theem.

Tomqab kawm tas, koj yuav tsum nruab ib lub txim rov qab thiab rov mus saib lub roj teeb voltage. Thaum koj yuav tau recharge nws rau ib tug ob peb volts.

wholesome tswv yim

Yuav kom ntau yog muaj txiav txim qhov tam sim no mob ntawm lub engine yuav tsis tau los cia siab thiaj tau tuaj rau lub measured compression ua tau zoo, tab sis kuj yog ib tug xov tooj ntawm lwm yam ntxwv. Nws tej zaum yuav txog qib uas ntseeg, suab nrov, hloov mus hloov los nyob rau hauv lub hwj chim lag luam ntawm lub cev muaj zog idling, roj noj thiab roj.

xaus

Yog li ntawd peb xam tau tawm li cas compression yuav tsum tau thiab yuav ua li cas nws yuav ntsuas. Lub ntsuas rau lub twj paj nruag yuav meej qhia hais tias tus sab hauv lub xeev ntawm lub cav, nws seem lub neej thiab lub tam sim no faults. Thiab yog hais tias koj pom tias koj tsis muaj compression, xws li ib lub cav yuav tsum raug mus rau ib tug ntau ncauj lus kom ntxaws soj ntsuam thiab kho. Txwv tsis pub, tom qab ib tug ob peb txhiab kilometers, nws yuav rhuav tshem nws tus kheej, thiab tsis muaj kev kho thiaj yuav cawm tau nws.