VTO-G466W48B / RX52407500050 Roj Injector – SAC Nozzle Technology Nrog Optimized Energizing Profile|Engineered Rau High-Output European Heavy-Duty Cav

Nyob rau hauv cov kev tsheb ciav hlau injectors, lub nozzle tsim plays lub luag haujlwm tseem ceeb hauv kev txiav txim siab tsis yog cov qauv tshuaj tsuag nkaus xwb tab sis kuj yogrepeatability ntawm txhaj tshuaj kom muaj nuj nqis-tshwj xeeb tshaj yog nyob rau hauv luv luv mem tes dav siv rau kev txhaj tshuaj tsav. Muaj ob hom qauv tsim muaj: VCO (Valve Covered Orifice) thiab SAC (Saccular Volume) nozzles. Thaum VCO cov qauv tsim muaj cov tshuab hluav taws xob ua raws li niaj hnub no, SAC nozzle muaj qhov zoo sib xws hauvflow stabilitythiabtxo cavitationnyob rau hauv high pressures, muab lub hydraulic tsim yog optimized zoo. CovVTO-G466W48B / RX52407500050 injectorntiav ib tug precision-engineered SAC nozzle nrog ib tug tswj sac ntim ntawm 0.18 mm³ -loj txaus los muab lub yim 0.140 mm orifices tusyees, tsis tau me me txaus kom txo cov roj seem uas yuav ua rau tom qab dribble. Thaum ua ke nrog iboptimized energizing profileuas phim lub solenoid tam sim no nce lub sij hawm mus rau koob lub loj, qhov no injector muab ib tug ruaj khov pilot kom muaj nuj nqis nrog ib tug cycle-rau-lub voj voog variation ntawm tsawg tshaj li 1.2% ntawm 200 µs mem tes widths -ib qho tseem ceeb kom zoo dua rau Euro VI cav uas cia siab rau meej pilot txhaj combustion.

VTO-G466W48B / RX52407500050 yog ib qho kev qhia ncaj qha rauBosch 0 445 120 206thiabVTO-G466W48B, tshwj xeeb calibrated rau high-tso tawm variants ntawm:

Scania DC 13(Euro VI, 450–540 hp) - R-series, G-series, thiab cov tsheb tsuas

Volvo D13(Euro VI, 460–500 hp) – VNL, VNX, FH series

TSI D2676(Euro VI, 470–520 hp) - TGX, TGS, thiab kev tsim kho tsheb

DAF MX-13(Euro VI, 480–530 hp) – XF, CF series

Mack MP8(Euro V / VI, 445–505 hp) - Pinnacle, Granite, Titan qauv

Renault DXi 13- European heavy-duty platforms nrog high-tsim calibrations

Qhov no injector yog qhov pom zoo xaiv rauhigh-horsepower Euro VI cavxav tau kev txhaj tshuaj ruaj khov rau kev siv qis-NOx combustion, thiab rau cov nkoj ua haujlwm hauvqhov siabtej yam kev mob uas siab sib txawv xav tau robust cavitation kuj.

Qhov sib txawv ntawm SAC thiab VCO nozzles nyob rau hauv cov roj ntim ntawm rab koob. Hauv VCO tsim, rab koob kaw ncaj qha rau ntawm qhov chaw nkag, tawm ntawm qhov seem seem tsawg kawg nkaus -uas txo qis tom qab dribble tab sis tsim kom muaj siab dua oscillations ntawm qhov chaw kaw. Cov oscillations no tuaj yeem ua rau cavitation yaig ntawm lub qhov ncauj inlets, tshwj xeeb tshaj yog nyob rau hauv high-pressure, high-frequency ua hauj lwm.

Lub SAC nozzle, los ntawm qhov sib txawv, muaj lub ntim ntim (lub hnab) hauv qab lub rooj zaum, uas cov roj ntws ua ntej tawm hauv qhov chaw. Qhov ntim no ua raws li ahydraulic tsis, smoothing siab fluctuations thiab txo cavitation ntawm cov npoo inlet. Lub VTO-G466W48B / RX52407500050 optimizes qhov tsim los ntawm:

① Tswj Sac Volume (0.18 mm³)- Loj txaus rau dampen siab nthwv dej, me me txaus los tiv thaiv cov roj seem uas yuav ua rau tom qab txhaj tshuaj dribble. Lub ntim raug txheeb xyuas los ntawm kev siv cov txheej txheem hloov pauv qhov tseeb thaum lub sijhawm tsim khoom.

② Radiused Orifice Inlets- Txhua qhov ntawm yim 0.140 mm qhov nta ib lub vojvoog inlet (R0.03–0.05 mm) uas txo qhov kev poob siab ntawm qhov nkag, txo qis qhov ua npuas ncauj cavitation. Lub vojvoog no yog siv los ntawm EDM machining tom qab los ntawm micro-polishing.

③ Matched Energizing Profile- Lub injector tus solenoid tsav tsheb profile yog optimized kom xa ib tug tam sim no nce uas phim SAC nozzle tus yam ntxwv hydraulic. Qhov no ua kom paub tseeb tias rab koob nqa tau du thiab tswj tau, tsis muaj lub ntsej muag ntse ntse uas ua rau cavitation hauv VCO tsim.

④ Hardened Seat Insert- Lub rooj zaum koob tau txhawb nqa nrog tungsten-carbide ntxig (70-72 HRC) uas tiv thaiv qhov cuam tshuam ntau dua cuam tshuam nrog kev ua haujlwm SAC nozzle, ua kom muaj kev sib khi zoo ib yam dhau ntawm lub tshuab ua haujlwm lub neej.

Kev kuaj xyuas tseeb qhia tau hais tias SAC nozzle qhov ruaj khov siab profile txo qis inlet yaig los ntawm ntau dua 40% piv rau VCO tsim ntawm tib yam kev ua haujlwm. Ntawm 1,500 bar, 1,800 rpm, VTO-G466W48B / RX52407500050 tuav qhov kev ruaj ntseg ntawm ± 1.2% tom qab 8 lab cycles, piv rau ± 2.1% rau VCO tsim nyob rau hauv kev sim zoo tib yam.

Txhua VTO-G466W48B / RX52407500050 injector tau dhau 9-theem validation nrog rau kev tsom mus rau SAC nozzle kev ncaj ncees:

◈ Sac ntim ntsuas- precision hloov chaw; ntim yuav tsum yog 0.18 mm³ ± 0.01 mm³.
◈ Orifice inlet tshuaj xyuas- high-magnification optical kuaj; radiused inlet (R0.03-0.05 hli) paub tseeb.
◈ Flow nkhaus tiam- 6 siab × 5 mem tes dav; R² > 0.998.
◈ Pilot stability test- 500 lub voj voog sib law liag ntawm 200 µs, 1,200 bar; CV Tsawg dua lossis sib npaug li 1.4%.
◈ Cavitation endurance- 1 lab lub voj voog ntawm 1,600 bar nrog 2% dej-emulsified roj; erosion Tsawg dua lossis sib npaug li 2 µm.
◈ High-pressure foob- helium leak test ntawm 1,700 bar; <6 × 10⁻⁶ mbar·l/s.
◈ Thermal drift- qhib ncua ntawm −20 degree, +20 degree, +100℃; Hloov tsawg dua lossis sib npaug li 3.5 µs.
◈ Txau qauv- Lub khob hliav qab 152℃± 1.5 degree, qhov sib txawv ntawm qhov tsawg dua lossis sib npaug ± 5%.
◈ Traceability- txhua chav muaj 2D barcode txuas rau daim ntawv pov thawj nrog SAC ntim thiab cov ntaub ntawv tsav tsheb ruaj khov.

🔧 Mechanical haum:

Siv lub tshuab ntxhua khaub ncaws tooj liab thiab O-rings. Ntxuav lub injector kom huv si.

Torque lub siab-siab txiv ntseej rau35 Nm + 60 degree- tsis pub tshaj 42 Nm; lub SAC nozzle lub rooj yog rhiab heev rau over-torquing tshaj VCO designs.

Xyuas kom cov kab rov qab yog tsis txwv -rov qab-siab> 2.0 bar tuaj yeem ua rau cov khoom seem ntawm cov ntim ntim.

💻 ECU programming:

Nkag mus rau 7-tus cim IQA code siv Scania SDP3, Volvo Tech Tool, MAN CAT, lossis Bosch ESI [tronic].

Ua qhov kev hloov kho dua tshiab thiab tsis ua haujlwm li 5 feeb. ECU yuav hloov mus rau SAC nozzle tus yam ntxwv ruaj khov tsav.

⚠️ Tseem ceeb: Lub SAC nozzle lub hnab ntim loj dua txhais tau hais tias lub injector khaws cov roj me ntsis tom qab txhaj tshuaj dua li VCO tsim; qhov no yog qhov qub thiab suav rau hauv qhov ntsuas. Tsis txhob sim hloov lub nozzle los yog kho rau "fuel seem" nyob rau hauv lub hnab.

Q1: Kuv tau hnov ​​​​tias SAC nozzles nquag ua tom qab dribble. Puas yog VTO-G466W48B / RX52407500050 muaj qhov teeb meem no?
Tom qab-dribble nyiam yog tswj los ntawm lub ntim ntim thiab koob zaum geometry. Lub ntim 0.18 mm³ yog qhov me me uas cov roj seem raug tshem tawm thaum lub sijhawm txhaj tshuaj tom ntej; ntsuas tom qab-dribble tsawg dua 0.2 mm³ ib qho kev tshwm sim-zoo nyob rau hauv ECU cov nyiaj tau los thiab piv rau VCO tsim.

Q2: Dab tsi yog qhov txawv ntawm qhov SAC injector thiab VCO injectors siv hauv Euro V cav?
SAC nozzles muaj lub ntim ntim hauv qab lub koob lub rooj, uas ua kom lub siab oscillations thiab txo cov cavitation ntawm lub qhov ncauj qhov ntswg. VCO tsim kaw ncaj qha rau ntawm cov inlets, muab me ntsis zoo dua tom qab-dribble tswj tab sis siab dua tus nqi yaig. Lub VTO-G466W48B / RX52407500050 ua ke nrog SAC kev ruaj ntseg nrog lub rooj zaum tungsten-carbide kom txo qis qhov tsis zoo.

Q3: Kuv puas tuaj yeem siv lub twj tso kua mis no rau ntawm lub cav uas tsim los rau VCO injector?
Yog, qhov ntev ntawm sab nraud thiab cov roj sib txuas yog tib yam. ECU yuav hloov mus rau SAC nozzle tus yam ntxwv los ntawm IQA code thiab kev hloov pauv raws li niaj zaus. Txawm li cas los xij, vim tias tus cwj pwm hydraulic txawv, peb pom zoo kom txhim kho tag nrho cov SAC injectors es tsis yog sib xyaw nrog VCO units.

Q4: Lub injector muaj ib lub vojvoog inlet ntawm lub nozzle qhov. Qhov ntawd puas txo cov kev pab cuam lub neej?
Tsis yog- lub vojvoog ua tau txuas ntxiv lub neej los ntawm kev txo cov kev ntxhov siab ntawm qhov nkag ntawm ntug, uas tiv thaiv kev pib tawg thiab yaig. EDM-machined radius yog ib txoj hauv kev ua pov thawj rau kev ua kom muaj zog cavitation nyob rau hauv high-pressure diesel injectors.

Q5: Kuv lub cav muaj qhov siab-altitude calibration uas nce rail siab mus rau 1,600 bar. SAC nozzle puas yuav daws qhov ntawd?
Yog lawm, VTO-G466W48B / RX52407500050 tau tawg-kuaj rau 2,200 bar thiab siv tau ntawm 1,600 bar txuas ntxiv. Lub SAC nozzle lub ntim loj dua tau txo qhov kev poob siab thoob plaws hauv cov inlets ntawm kev kub ntxhov, muab kev ruaj ntseg zoo dua piv rau VCO cov qauv hauv qab no.

Q6: Lub tshuab txhaj tshuaj tuaj nrog daim ntawv pov thawj qhia lub ntim ntim. Vim li cas qhov kev ntsuas no tseem ceeb?
Lub ntim ntim ncaj qha cuam tshuam rau kev tsav tsheb ruaj khov thiab cov roj seem seem. Lub ntim ntim zoo ib yam (± 0.01 mm³) ua kom ntseeg tau tias cov tshuaj txhaj tshuaj ua haujlwm tau rov ua dua thoob plaws ntau lawm, thiab daim ntawv pov thawj muab traceability nyob rau hauv rooj plaub ntawm kev soj ntsuam kev ua haujlwm yav tom ntej. Khaws nws nrog koj cov ntaub ntawv kev pabcuam.

 

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!

 

 

Cim npe nrov: vto-g466w48b / rx52407500050 roj injector – sac nozzle technology nrog optimized energizing profile|engineered rau high-tso tawm teb chaws Europe heavy-duty cav, Tuam Tshoj vto-g466w48b / rx52407500050 roj injector – sac nozzle tshuab nrog optimized energizing profile|engineered rau high-tso tawm teb chaws Europe hnyav-duty cav manufacturers, lwm tus neeg, Hoobkas