VTO-G238TV46 Solenoid Common Rail Injector - Ntau-Mod Adaptability Rau Cov Txheej Txheem Ua Haujlwm Niaj Hnub No

Niaj hnub nimno diesel xyaw tsis ua hauj lwm nrog ib tug combustion zoo. Lawv hloov ntawm cov qauv qis-NOx hauv nroog, kev ua haujlwm loj hauv kev ua haujlwm siab, thiab kub-kub DPF rov tsim dua tshiab -txhua tus xav tau qhov sib txawv txhaj tshuaj. VTO-G238TV46 yog lub tshuab hluav taws xob solenoid-actuated common rail injector engineered nrog ibdual-rate koob caij nplooj ntoos hlavuas tso cai rau lub injector kom ruaj khov pilot kom muaj nuj nqis nyob rau hauv ib tug dav dav siab ntau yam (250-1,800 bar) tshaj li cov qauv tsim. Qhov kev teeb tsa lub caij nplooj ntoos hlav no- sib txuas lub caij nplooj ntoos hlav qis qis rau thawj lub koob nqa thiab lub caij nplooj ntoo hlav sab hauv siab rau kev tswj nqa tag nrho- kom ntseeg tau tias lub tshuab nqus tau teb tsis tu ncua txawm tias ECU tau hais kom tus tsav 1.8 mm³ lossis 180 mm³ qhov xwm txheej tseem ceeb. Rau lub cav platforms uas siv ntau hom kev ntsuas cov tswv yim, VTO-G238TV46 muab cov hydraulic adaptability uas software nkaus xwb tsis tuaj yeem ua tiav, txo cov suab nrov sib txawv thiab khaws cov emissions nyob rau hauv siab nyob rau hauv tag nrho cov kev khiav hauj lwm hom.

Lub kaum sab xis ntawm 148℃thiab 0.24 mm orifices tsim cov tshuaj tsuag uas ua tau zoo thoob plaws lub siab ntau yam - qhov tseem ceeb rau kev ua haujlwm ntau hom.

Txau cov ntaub ntawv ntawm 1,600 bar, 2.0 ms energising:

Sauter Mean Dia: 17.5 µm

Kev nkag mus ntev ntawm 1.0 ms tom qab SOI: 44 mm

Cone lub kaum sab xis: ± 1.3℃thoob plaws txhua qhov

Jet-to-jet uniformity: Tsawg dua lossis sib npaug li 3.0%

evaporation tus nqi ntawm 25℃crank angle: 74%

Txau cov ntaub ntawv ntawm 800 bar (txo qis rau hauv nroog hom):

Sauter Mean Dia: 21 µm

Kev nkag mus ntev ntawm 1.0 ms: 38 mm

evaporation tus nqi ntawm 25℃crank angle: 62%

Lub dual-rate lub caij nplooj ntoos hlav xyuas kom meej tias rab koob nqa mus rau qhov siab tib yam ntawm 800 bar li ntawm 1,600 bar, tiv thaiv cov qauv tshuaj tsuag los ntawm kev ua kom tsis zoo ntawm qhov qis dua -ib qho teeb meem nrog ib lub caij nplooj ntoos hlav injectors uas under-lift ntawm kev tsheb nqaj hlau txo.

VTO-G238TV46 siv apob-thiab-lub rooj tswj valvenrog rau 0.50 hli tso tawm lub qhov ncauj- loj dua li 0.48 mm ib txwm nyob rau hauv chav kawm no - txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau 0.48 Qhov no txhim kho tus neeg mob lub peev xwm hloov pauv sai ntawm tus tsav thiab cov xwm txheej tseem ceeb.

Tswj valve specifications:

Valve hom: Pob-thiab-lub rooj (tungsten carbide pob)

Pob qhov taub: 1.2mm

Valve stroke: 0.32 hli

Tswj chamber ntim: 54 mm³

Tawm sab nraud: 0.50mm

Filling qhov siab: 0.34mm

Qhov kev tso tawm loj dua yuav txo tau lub sij hawm uas yuav tsum tau txo lub chamber siab, tso cai rau lub sij hawm luv luv nyob nruab nrab ntawm ntau qhov kev txhaj tshuaj -tshwj xeeb yog qhov tseem ceeb rau cov cav nrog cov tswv yim sib txuas tom qab txhaj tshuaj.

Clamp bolts:10 N·m pib + 90℃rotation. Tshaj-torquing tuaj yeem cuam tshuam lub cev lub cev, hloov lub caij nplooj ntoos hlav ua ntej load.

High-pressure union:35 ± 3 Nm nrog lub ferrule tshiab.

Leak-off connector:22 N·m- xyuas kom cov kab rov qab tsis muaj kev txwv.

Kev tuav:Tsis txhob poob los yog jarring lub injector - cuam tshuam tuaj yeem hloov lub caij nplooj ntoos hlav ua ntej load.

Tsis tas yuav tsum tau trim code rau feem ntau ntawm ECUs - qhov ± 2.5% ndlwg kam rau ua nyob rau hauv qhov kev hloov ntawm Bosch EDC16/17, Denso HP3/4, thiab Delphi E3/E4 maub los.

Cov tsos mob	Tej yam ua rau	Kev pov thawj
Tsis nrov combustion nyob rau hauv nroog hom nkaus xwb	Pilot ntau ntau heev - caij nplooj ntoos hlav hloov qhov teeb meem	Kos tawm ntawm 800 bar-piv rau 1,600 bar
DPF regeneration ua rau cov pa luam yeeb dawb	Tom qab txhaj tshuaj lub sij hawm tawm - tswj valve hnav	Ntsuas qhov qhib ncua; Yog tias> 0.48 ms, valve hnav
Roj kev lag luam poob hauv txoj kev loj	Txo koob nqa- sab hauv caij nplooj ntoos hlav qaug zog	Flow-bench test ntawm 1,600 bar-piv rau spec
Rough idle tom qab lub voj voog rov tsim dua	Thermal expansion ua rau lub caij nplooj ntoos hlav pre-load hloov	Lub cav txias rau 20℃thiab rov sim dua

Lub caij nplooj ntoos hlav dual-rate tuaj yeem kuaj tau los ntawm kev sib piv cov tshuaj txhaj tshuaj ntawm 800 bar thiab 1,600 bar - yog tias qhov ntau ntawm 800 bar yog ntau tshaj 5% qis dua qhov xav tau, lub caij nplooj ntoos hlav sab hauv yuav poob ua ntej load.

Q1: Kuv tab tom khiav Euro VI lub cav uas hloov ntawm lub nroog thiab txoj kev loj. Lub injector no puas yuav ua haujlwm zoo rau kev hloov pauv?
Yog lawm, lub caij nplooj ntoos hlav dual-rate tau tsim tshwj xeeb rau lub hom phiaj no. Tus neeg tsav dav hlau tseem nyob ruaj khov (± 0.15 mm³) hla lub siab ntau, yog li lub suab nrov thiab cov pa tawm yuav tsum tsis txhob hloov pauv thaum ECU hloov hom. Xyuas kom lub ECU hloov kho tau rov pib dua tom qab kev teeb tsa.

Q2: Lub cav ua haujlwm zoo ntawm kev thauj khoom tag nrho tab sis muaj suab nrov ntawm lub teeb. Cov tshuaj txhaj tshuaj puas yog qhov teeb meem?
Lub teeb-load nrov nrov ua haujlwm feem ntau yog vim muaj ntau tus tsav tsheb ntau dhau -ECU tej zaum yuav tau hais kom tus tsav tsheb loj dhau rau tus yam ntxwv lub caij nplooj ntoos hlav injector. Tshawb xyuas qhov kev tsav tsheb kom muaj nuj nqis hloov pauv; Yog tias nws siab dua 3 mm³ ntawm qhov tsis ua haujlwm, ECU yuav xav tau rov ua dua. Qhov no yog qhov teeb meem software ntau dua li qhov teeb meem kho vajtse.

Q3: Kuv puas tuaj yeem siv lub tshuab txhaj tshuaj no hauv daim ntawv thov marine nrog cov khoom sib txawv (xws li lub nkoj nuv ntses)?
Yog lawm, ntau hom kev hloov pauv ua rau nws haum rau cov ntawv thov sib txawv-load. Txawm li cas los xij, cov roj hauv hiav txwv feem ntau muaj cov sulfur thiab dej ntau dua - cov zinc-nickel plating muab kev tiv thaiv corrosion zoo, tab sis peb pom zoo kom 500-teev cov dej xau-tawm es tsis yog tus qauv 1,000-teev lub sijhawm.

Q4: Lub caij nplooj ntoos hlav dual-rate suab nyuaj- yog qhov kev txhaj tshuaj no kim dua rau kev kho dua li kev tsim ib lub caij nplooj ntoo hlav?
Cov springs lawv tus kheej tsis yog kim kim, tab sis lub rooj sib txoos yuav tsum tau ua tib zoo teeb tsa lub caij nplooj ntoos hlav sab hauv pre-load thaum lub sij hawm overhaul. Lub rooj cob qhia nrog lub caij nplooj ntoos hlav calibrated tuaj yeem ua qhov kev kho dua tshiab. Cov khoom siv pabcuam suav nrog cov springs tshiab thiab O-rings, thiab tus nqi kho dua tshiab yog piv rau cov qauv txhaj tshuaj.

Q5: Kuv tau hloov tag nrho rau lub injectors, tab sis lub cav tam sim no muaj "pilot kom muaj nuj nqis" txhaum cai. Kuv yuav ua li cas?
ECU tau khaws cov txiaj ntsig kev hloov pauv rau cov tshuaj qub qub uas nyob sab nraud ntawm cov tshiab. Pib dua qhov kev hloov pauv siv software kuaj mob thiab ua 15-feeb khiav tsis ua haujlwm raws li lub voj voog thauj khoom. Yog tias qhov ua yuam kev tseem tsis tau muaj, cov tshuaj txhaj tshuaj tshiab tuaj yeem muaj cov chav dej sib txawv me ntsis - tiv tauj peb rau cov nqi kho kom raug.

Q6: Lub caij nplooj ntoos hlav dual-tus nqi cuam tshuam li cas rau kev ua haujlwm txias pib?
Thaum txias txias, roj viscosity siab dua, thiab tswj valve teb qeeb dua. Lub caij nplooj ntoos hlav dual-rate pab los ntawm kev muab lub zog kaw ntau dua ntawm kev nqa tag nrho, uas them rau cov lus teb qeeb qeeb. Kev ua haujlwm txias pib feem ntau yog txhim kho los ntawm 5-10% piv rau ib lub caij nplooj ntoos hlav injectors, tshwj xeeb tshaj yog thaum ua ke nrog lub teeb ci.

 

Txhawm rau ua kom koj qhov kev yuav khoom tau yooj yim thiab yooj yim, peb muab ntau yam kev xaiv them nyiaj ruaj ntseg:

Peb nyob ntawm no los ua kom koj cov txheej txheem xaj kev txhawj xeeb-dawb - xaiv txoj kev them nyiaj uas ua haujlwm zoo tshaj rau koj!

 

 

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