VTO-G205GV48 Solenoid Common Rail Injector - Tswj-Valve Geometry Optimized Rau Nruab Nrab- Lub Luag Haujlwm Cav Platforms

Nyob rau hauv kev txhaj tshuaj rail, electromagnetic kev ua tau zoo ntawm lub solenoid feem ntau tau txais kev mloog zoo tshaj plaws, tab sis lub hydraulic geometry ntawm lub valve tswj tau muaj kev cuam tshuam sib npaug ntawm kev txhaj tshuaj stability. Lub VTO-G205GV48 yog lub tshuab solenoid-actuated injector txawv los ntawm kev tsim kho dua tshiab tswj-valve geometry uas muaj cov yam ntxwvdual-guide spoolnrog rau qhov optimized av-rau-groove piv, txo lateral tilting thaum qhib. Qhov kev tsim no muab kev txhaj tshuaj kom muaj nuj nqis rov ua dua nrog cov coefficient ntawm kev hloov pauv (CoV) tsawg dua 1.5% hla tag nrho cov kev tsheb ciav hlau siab ntau yam -ib theem ntawm kev sib xws uas ua kom cov roj sib xws ntawm lub tog raj kheej mus rau lub tog raj kheej, txawm tias tom qab kev pabcuam txuas ntxiv. Rau cov cav ua haujlwm nyob rau hauv cov xwm txheej tsis tu ncua- qhov chaw thauj khoom hloov pauv sai sai xav tau kev ua kom muaj roj ntau dua -VTO-G205GV48 muab kev ruaj ntseg hydraulic uas tiv thaiv hluav taws tsis zoo, pa taws, thiab xa hluav taws xob tsis sib xws.

Cov twj tso kua mis feem ntau siv ib qho kev taw qhia spool valve, uas tuaj yeem qaij nyob rau hauv lub siab ntws, ua rau tsis sib xws thiab qhib qhov sib txawv. VTO-G205GV48 suav nrog adual-guide spoolnrog kev txhawb nqa bearings ntawm ob qho kawg ntawm lub valve, tswj kev sib koom ua ke thoob plaws hauv cov hlab ntsha. Qhov no txo ​​qis kev thauj khoom sab nraud los ntawm kwv yees li 40%, kev coj ua qeeb qeeb thiab khaws cia lub valve qhov ntsuas qhov tseeb.

Parameter	VTO-G205GV48	Ib Daim Ntawv Qhia (Conventional)
Hom Valve	Dual-guide spool	Ib leeg-coj spool
Valve Stroke	0.31mm ib	0.28-0.32 hli
Lateral Tilt (max)	< 0.02°	0.06-0.10 degree
Qhia Clearance	3.0‑3.5 µm	4.0‑5.0 µm
Tshem tawm Orifice	0.49mm ib	0.46-0.50 hli
Sau Orifice	0.33mm ib	0.30-0.34 hli
Qhib ncua @ 1,600 bar	Tsawg dua lossis sib npaug li 0.42 ms	Tsawg dua los yog sib npaug li 0.45 ms
Kaw ncua	Tsawg dua lossis sib npaug li 0.22 ms	Tsawg dua los yog sib npaug li 0.25 ms

Kev txo qis qis qis tsis tsuas yog ua rau qeeb qeeb tab sis kuj ua kom ntseeg tau tias tus nqi nchuav - cov roj ntim tawm los ntawm cov tswj chamber thaum lub valve qhib- tseem nyob ib puag ncig ntawm lub tshuab ua haujlwm lub neej. Tus nqi ruaj khov tus nqi ncaj qha txhais mus rau lub koob ruaj khov nqa thiab, yog li ntawd, ruaj khov txhaj tshuaj kom muaj nuj nqis.

VTO-G205GV48 muab cov dej ntws zoo li qub1,100 ml / min ntawm 100 barnrog rau kev ua siab ntev ntawm ± 2.5%, haum rau cov cav hauv 150-250 kW fais fab tuag. Nws siab tshaj rail siab ntawm1,800 Ibua raws li kev ua haujlwm txwv ntawm nruab nrab-lub luag haujlwm twj tso kua mis, ntsuas kev ua tau zoo nrog kev ua haujlwm ntev.

Parameter	VTO-G205GV48	Kev lag luam Class nruab nrab
Static Flow @ 100 bar	1,100 ml / min (± 2.5%)	1,080-1,140 ml / min
Maximum Rail Siab	1,800 Ib	1,800-1,850 bar
Nozzle Configuration	7 × Ø 0.24 hli	7 × Ø0.235‑0.25
Txau suav nrog lub kaum sab xis	148 degree	146-150 ° C
Koob Lift	0.37mm ib	0.36-0.38 hli
Koob Qhia Diameter	6.0mm ib	6.0mm ib
Coil Resistance @ 20 degree	0.70 Ω ± 0.05 Ω	0.68‑0.75 Ω
Leak-off Ratio @ 1,800 bar	Tsawg dua lossis sib npaug li 8.5%	9‑11%
Shot-to-Shot CoV	< 1.5%	< 2.0%

Lub 7-qhov nozzle nrog 0.24 hli orifices tsim cov qauv tshuaj tsuag zoo rau nruab nrab-swirl combustion tais (swirl ratio 1.6-2.0) feem ntau ntawm 6- txog 8-liter cav. Lub Sauter Mean Diameter ntawm 1,600 bar yog kwv yees li 17.5 µm, muab kev zoo atomisation yam tsis muaj kev nkag mus ntau dhau.

Lub 148℃suav nrog lub kaum sab xis thiab 0.24 hli orifice txoj kab uas hla tsim cov tshuaj tsuag uas sib npaug nkag mus nrog atomisation rau nruab nrab-lub luag haujlwm combustion systems. Cov qauv tshuaj tsuag tau siv tau siv cov duab nrawm nrawm ntawm cov xwm txheej hauv qab no:

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: 43.5 hli

Lub kaum sab xis sib txawv ntawm 7 qhov: Tsawg dua lossis sib npaug rau ± 1.3 degree

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

evaporation tus nqi ntawm 25℃crank angle: 75%

Qhov nruab nrab nkag mus ntev (43.5 mm) kom ntseeg tau tias cov roj mus txog lub tais rim yam tsis muaj impinging ntawm lub tog raj kheej liner, txo qhov kev pheej hmoo ntawm cov roj dilution thiab soot tsim. Cov yam ntxwv no tshwj xeeb tshaj yog muaj txiaj ntsig zoo rau cov cav uas nquag ua haujlwm ntawm qhov chaw thauj khoom, qhov twg phab ntsa ntub dej yog qhov teeb meem tshwm sim.

VTO-G205GV48 tus qauv tsim dual-guide tsis tshua muaj kev cuam tshuam rau kev ua haujlwm tsis zoo dua li cov lus qhia ib leeg, tab sis kev teeb tsa kom raug tseem tseem ceeb:

Clamp bolts:10 N·m pib, ces 90℃rotation. Tsis txhob siab tshaj 25 N·m- dhau-clamping distors lub cev txhaj tshuaj thiab tuaj yeem cuam tshuam rau kev tshem tawm cov lus qhia.

High-pressure union:35 ± 3 N·m nrog lub ferrule tshiab - lub ferrule yog ib yam khoom siv.

Leak-off connector:22 N·m- xyuas kom cov kab rov qab tsis tsim rov qab-siab.

Hluav taws xob connector:Ntxuav cov pins thiab siv cov roj dielectric los tiv thaiv kev tiv thaiv los ntawm kev hloov pauv cov yoj tam sim no.

Lub injector uatsis yogxav tau ib tus kheej trim code ntawm feem ntau ECUs -nws qhov kev kam rau siab txaus (± 2.5%) yog nyob rau hauv qhov kev hloov pauv ntawm Bosch EDC16/17, Denso HP3/4, thiab Delphi E3/E4 maub los. Txawm li cas los xij, rov pib dua lub tog raj kheej-qhov sib npaug tom qab kev teeb tsa raug pom zoo.

Q1: Kuv lub cav muaj lub twj tso kua mis CP3.3. Cov tshuaj no puas yuav ua haujlwm nrog nws?
Yog lawm, VTO-G205GV48 qhov ntws (1,100 ml / min) zoo nyob rau hauv lub peev xwm xa khoom ntawm CP3.3 (kwv yees li 130 L / h ntawm 1,800 bar). Lub twj tso kua mis lub siab tswj valve yuav them nyiaj rau lub injector tus yam ntxwv to. Txawm li cas los xij, yog tias koj tab tom hloov tag nrho rau lub injectors, ua lub twj tso kua mis hloov kho kom rov ua kom lub siab tswj lub valve rau lub hauv paus tawm tshiab.

Q2: Kuv tau teeb tsa lub injector no tab sis lub cav muaj me ntsis "tsis nco qab" ntawm qhov tsis ua haujlwm -qhov teeb meem tuaj yeem yog dab tsi?
Txheeb xyuas cov dej ntws tawm ntawm txhua lub tog raj kheej. Yog tias cov tshuaj txhaj tshuaj tshiab muaj cov dej ntws tawm uas txawv ntawm lwm tus (xws li, 60 ml / min vs . 80 ml / min), ECU yuav tsis tuaj yeem sib npaug ntawm lub tog raj kheej sai. Pib dua cov kev hloov pauv thiab khiav lub cav ntawm 1,200 rpm rau 10 feeb. Yog tias qhov tsis tuaj yeem tshwm sim, lub tshuab txhaj tshuaj lub pob valve yuav raug puas ntsoog thaum thauj khoom - tiv tauj peb kom hloov pauv.

Q3: Kuv puas tuaj yeem khiav qhov kev txhaj tshuaj no ntawm B50 biodiesel?
Yog, tab sis nrog ob caveats. Ua ntej, biodiesel lub siab compressibility txo qhov kev txhaj tshuaj zoo li ntawm 1-2% ntawm B50-ECU cov lus tawm tswv yim lambda yuav kho qhov no. Qhov thib ob, qhov viscosity siab dua ua rau qhov kev ncua sijhawm kaw los ntawm kwv yees li 0.02 ms, uas yog nyob rau hauv ECU lub sijhawm hloov pauv. Peb pom zoo kom luv luv lub sij hawm xau tawm los ntawm 1,000 mus rau 500 teev kom pom lub valve hnav thaum ntxov.

Q4: Lub cav muaj qhov txhaum "rail tswj" uas tshwm sim tom qab kuv hloov lub injector no. Kuv yuav ua li cas?
Lub tshuab txhaj tshuaj tshiab tuaj yeem muaj qhov sib txawv ntawm qhov sib txawv dua li qub - yog tias qhov xau qis dua, lub twj tso kua mis yuav tsum ua haujlwm tsawg dua kom tswj tau qhov siab; yog tias siab dua, lub twj tso kua mis ua haujlwm ntau dua. Nyob rau hauv ob qho tib si, lub twj tso kua mis lub siab tswj valve adaptation yuav nyob sab nraum nws cov kev kawm ntau yam. Ua qhov yuam kev rov pib dua rau lub siab tswj valve (siv cov software kuaj mob). Yog tias qhov ua txhaum tseem tsis tau muaj, xyuas lub tsheb ciav hlau siab sensor offset.

Q5: Dab tsi yog qhov kev taw qhia dual-guide spool cuam tshuam rau lub injector qhov kev pabcuam thaum lub sijhawm kho dua?
Lub dual-guide spool tuaj yeem hloov tau thaum lub sijhawm ua haujlwm kho dua, tab sis nws yuav tsum tau ua tib zoo saib xyuas thaum sib dhos. Peb pom zoo tias tsuas yog kev cob qhia nrog lub rooj ntev zaum kom zoo ua qhov kev kho dua tshiab - qhov kev tshem tawm cov lus qhia yuav tsum tau teem rau 3.0-3.5 µm, uas tsis tuaj yeem ntsuas qhov tseeb yam tsis muaj cov cuab yeej tshwj xeeb. Muaj cov khoom siv kho dua tshiab (spool, guides, needle, seat, O-rings, and springs) muaj.

Q6: Cov roj txhaj tshuaj rov qab yog qhov pom tau tias sov dua li qhov khoom siv - qhov no puas yog qhov qub?
Qhov kub nce ntawm 5-8℃nyob rau hauv lub injector yog ib txwm nyob rau hauv tag nrho cov load, raws li cov roj to yog depressurised los ntawm 1,800 bar mus rau ze-atmospheric siab, tso cua sov. Yog tias qhov kub thiab txias siab tshaj 12 degree, cov dej ntws sab hauv yuav ua rau ntau dhau - ntsuas qhov rov qab ntws; Yog tias nws siab tshaj 110 ml / min ntawm qhov tsis ua haujlwm, lub spool lossis lub rooj zaum hnav thiab lub tshuab txhaj tshuaj yuav tsum tau hloov.

 

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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