Dongfeng Longqing Injector Adapter Teem - Interface Standardization Rau Ntau Yam Kev Xeem Xeem

Dongfeng Longqing (Dragon-Power) cov cav- ncua KX, VL, thiab KL series- siv Bosch CRIN injectors uas sib txawv tsis yog hauv lawv qhov kev ntsuas sab hauv xwb tab sis kuj nyob hauv lawv.hydraulic interface geometry: lub siab-siab inlet xov, rov qab roj chaw nres nkoj txoj kab uas hla, thiab hluav taws xob connector pin suab sib txawv nyob rau hauv ntau tiam neeg los ntawm Euro 4 mus txog Euro 6. Thaum cov injectors no raug xa mus rau lub rooj zaum xeem (piv txwv li, Bosch EPS 200, Hartridge AVM-2, los yog Denso-style testers), mismatched adapters ua rau lub siab leaks, teeb liab attenuation (6) cov neeg kho tshuab ua kom tsis zoo sib txawv li ± 8% nyob rau hauv tus me nyuam kom muaj nuj nqis. Qhov noDongfeng Longqing Injector Adapter Teebmuaj cov txheej txheem kev sib txuas lus dav dav, kom ntseeg tau tias txhua qhov kev txhaj tshuaj txuas mus rau txhua qhov kev sim sib tw nrogxoom hydraulic cross-hais lusthiabtag nrho hluav taws xob teeb liab kev ncaj ncees.

Lub adapter teeb npog peb hom kev sib txuas hydraulic tseem pom thoob plaws Longqing injector tsev neeg, txhua tus nrog nws tus kheej sealing mechanism thiab torque specification:

Hom interface	Inlet Xov	Txoj Kev Sealing	Kev ntsuas siab	Torque Requirement
Type A (KX 13L, Euro 4/5)	M14×1.5	60℃cone foob	2,000 bar	35 N·m
Hom B (VL 11L, Euro 5/6)	M16×1.5	Lub ntsej muag tiaj tus nrog O-ring	2,200 bar	40 N·m
Hom C (KL 9L, Euro 6)	M12×1.25	Lub rooj zaum	1,800 Ib	28 N·m

Txhua lub adapter yog tsim los ntawm17-4PH stainless hlau( nag lossis daus-hardened rau 44 HRC), muab tshwj xeeb tiv thaiv rau galling thiab siab-induced deformation. Lub ntsej muag sealing yog lapped rau saum npoo ntawm Ra 0.08 µm, kom ntseeg tau tias lub foob hlau-rau-hlau uas tshem tawm cov dej xau txawm tias nyob rau hauv lub zog siab. Cov adapters yog laser-cim nrog lawv hom interface thiab qhov siab tshaj plaws ntsuas, tso cai rau cov kws tshaj lij los tshawb xyuas kev sib raug zoo ua ntej sib dhos.

Tshaj li kev sib txuas hydraulic, lub adapter teeb suav nrogpin-conversion plugsuas reconcile qhov txawv hluav taws xob connector qauv:

DEUTSCH DT04-2P(siv hauv KX series) rauAMP Superseal 1.5(siv hauv VL series)

Bosch EV 1(KL series) rauDEUTSCHnrog 150-ohm termination resistor (rau injector solenoid diagnostics)

Tiv thaiv coaxialadapter rau piezoelectric injectors (qhov twg siv tau, nrog cov teeb liab txias)

Txhua qhov hluav taws xob adapter suav nrog akub-plated hu interfacenrog kev tiv thaiv kev tiv thaiv ntawm <5 mΩ, kom ntseeg tau tias lub rooj sib tw xeem tus tsav tsheb tam sim no raug tsim kho cov tshuaj txhaj tshuaj. Cov kab sib dhos yog sheathed hauvFEP (fluorinated ethylene propylene), resistant rau diesel, hydraulic roj, thiab kub txog li 180 degree. Ib qho kev sib xyaw ua kestrain-relief khau rajtiv thaiv cable qaug zog ntawm qhov chaw sib txuas, ib qho kev ua haujlwm tsis zoo nyob rau hauv qhov chaw ua haujlwm siab.

Ib qho kev txhaj tshuaj tsis zoo nyob rau hauv lub rooj ntev zaum sim tuaj yeem ua rau sab-loading ntawm lub koob txhaj tshuaj nozzle, skewing tus qauv tshuaj tsuag thiab ntsuas kev xa khoom. Lub adapter teeb muaj xws lilub tes tsho centeringrau txhua qhov injector lub cev txoj kab uas hla:

Ø 21.0 hli(KX 13L) – lub tes tsho kam rau ua: +0.00/−0.01 mm

Ø 19.5 hli(VL 11L) - lub tes tsho kam rau ua: +0.00/−0.01 hli

Ø 18.0 hli(KL 9L) – lub tes tsho kam rau ua: +0.00/−0.01 mm

Cov tes tsho no xyuas kom meej tias cov axis injector yog coaxial nrog lub rooj ntev zaum ntawm tus neeg tsav tsheb piston hauv ± 0.02 hli, tshem tawm cov cosine yuam kev uas tuaj yeem cuam tshuam kev ntsuas nqa. Lub tes tsho yog machined los ntawmHardened hlau (60 HRC)thiab hauv av mus rau daim iav tiav, tiv thaiv hnav los ntawm kev rov ua dua thiab tshem tawm mus. Aceev-tso xauv dab tshosnrog lub caij nplooj ntoos hlav-loaded detent tso cai rau lub injector kom ruaj ntseg los yog tso tawm nyob rau hauv peb vib nas this -ib tug tseem ceeb lub sij hawm-saver thaum batch-testing ntau injectors.

Cov hydraulic adapters suav nrog ibinternal flow straightener- ib qho luv luv, helical channel uas ua rau cov roj ntws nkag mus rau hauv lub tshuab txhaj tshuaj, tshem tawm cov kev kub ntxhov uas tuaj yeem hloov pauv qhov kev qhib lub qhov ncauj. Qhov tshwj xeeb no yog qhov tseem ceeb tshwj xeeb tshaj yog thaum kuaj ntawm qhov ntsuas qis qis (2-5 mm³ / stroke), qhov dej ntws tawm tuaj yeem ua rau tsis rov ua dua qhov sib txawv txog li 4%. Lub ndlwg straightener lub geometry yog optimized rau diesel viscosity ntawm 40 degree, thiab lub adapter yog tsim los txo qhov ntim tuag (lub ntim roj ntim ntawm lub adapter thiab lub injector inlet), txo nws kom tsawg dua 0.15 cm³. Qhov ntim me me no ua kom lub siab nce nrawm thaum lub sij hawm ntsuas pulse, ua raws li cov tshuaj txhaj tshuaj hauv lub tsheb teb.

Cov txheej txheem suav nrog adaim ntawv them nyiajuas kho qhov ntsuas lub rooj zaum nyeem ntawv raws li cov khoom siv tshwj xeeb siv-txhua lub adapter qhia txog qhov poob qis vim nws qhov geometry sab hauv, thiab daim ntawv qhia muab qhov kho kom raug (feem ntau yog 0.5–1.2%) kom ntseeg tau tias qhov ntsuas tus xa khoom raug kho raws li qhov sib npaug hauv lub tsheb.

Q1: Kuv puas tuaj yeem siv cov adapters no ntawm cov tshuaj txhaj tshuaj los ntawm lwm lub cav (piv txwv li, Weichai, Yuchai) uas sib faib cov xov loj tib yam?
Txawm hais tias cov xov hydraulic tuaj yeem ua rau lub cev sib xws, lub kaum sab xis sib khi, qhov nruab nrab ntawm txoj kab uas hla, thiab cov hlua hluav taws xob feem ntau sib txawv. Kev siv cov adapters no ntawm cov tshuaj uas tsis yog Longqing tuaj yeem ua rau muaj kev sib khi los yog tsis raug solenoid actuation. Peb muab cov adapter universal teem rau kev cob qhia cov khoom lag luam sib xyaws -thov nug sib cais.

Q2: Dab tsi yog qhov pom zoo torque rau kev sib txuas ntawm adapter-to-injector, thiab vim li cas nws tseem ceeb?
Over-torquing deforms lub sealing cone thiab tuaj yeem tawg lub injector qhov chaw nres nkoj; under-torqueing ua rau xau. Txhua lub adapter lub laser-engraving suav nrog tus nqi torque pom zoo. Siv lub calibrated torque wrench thiab siv lub torque nyob rau hauv ib qho kev sib tw, du; tsis txhob siv txoj kev "torque-plus-angle" tshwj tsis yog tias tau teev tseg rau qhov tshwj xeeb injector tiam.

Q3: Kuv yuav ua li cas ntxuav cov adapters yog tias lawv muaj cov pa roj carbon monoxide los yog kua roj vanish?
Disassemble tag nrho O-rings thiab ntws ncaj, ces sonicate nyob rau hauv ib tug 60℃diesel-raws li tshuaj ntxuav rau 10 feeb. Yaug nrog huv si diesel thiab tshuab ziab nrog cua lim. Tsis txhob siv txhuam txhuam, vim tias lawv tuaj yeem ua rau lub ntsej muag lapped sealing. Siv lub ntsaws ruaj ruaj kom paub meej tias qhov chaw tsis muaj qhov seem ua ntej rov ua dua.

Q4: Puas yog lub adapter teeb muaj xws li lub siab sensor chaw nres nkoj rau kev soj ntsuam qhov ntsuas qhov siab ntawm lub injector inlet?
Yog lawm. Lub phaj mounting muaj xws li M5x0.8 threaded chaw nres nkoj uas tuaj yeem txais lub siab transducer. Peb muab ib qho kev xaiv 2,500-bar siab sensor cov khoom siv (muag nyias) uas txuas rau qhov chaw nres nkoj no, tso cai rau koj los txheeb xyuas qhov tseeb ntawm qhov injector inlet, ywj siab ntawm lub rooj ntev zaum qhov ntsuas qhov ntsuas sab hauv-ib kauj ruam siv tau rau kev ntsuas siab.

Q5: Dab tsi yog qhov tseem ceeb ntawm qhov txo qhov ntim tuag?
Tuag ntim ua raws li hydraulic accumulator, absorbing ib feem ntawm lub siab mem tes generated los ntawm lub xeem lub rooj zaum lub plunger. Qhov no tuaj yeem ua rau muaj kev lag luam siab, ncua sij hawm lub tshuab txhaj tshuaj qhib thiab txo cov khoom xa tuaj ntawm cov mem tes luv luv. Los ntawm txo cov ntim tuag rau<0.15 cm³, the adapters ensure that the pressure at the injector inlet mirrors the test bench's command, especially critical for pilot injection accuracy.

Q6: Ntev npaum li cas yuav tsum tau hloov O-rings ntawm lub adapters?
O-rings yog tsim los ntawm FKM (fluorocarbon) thiab raug ntsuas rau 500 lub voj voog sib txuas. Tshawb xyuas lawv rau nicks, flattening, los yog hardening ua ntej siv. Cov khoom siv suav nrog tsib lub nplhaib O-rings rau txhua hom adapter, thiab cov pob khoom rov qab muaj. Ib txwm hloov O-ring yog tias nws pom muaj qhov pom kev deformation; leaks ntawm 2,000 bar tuaj yeem ua rau muaj kev phom sij.

 

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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