Bosch EUP 7.010 Valve Plunger - Kev Txhim Kho Txoj Haujlwm Kev Sib Raug Zoo & Zero-Offset Tshem Tawm Rau 0414750/755/799 Series Unit Pumps

 

Hauv Bosch Electronic Unit Pump (EUP) system, lub valve plunger tswj qhov chaw nres nkoj spill qhib thiab kaw, yog li txhais tau tias pib thiab lub sijhawm txhaj tshuaj. Txawm li cas los xij, qhov tseem ceeb parameter uas tsis tshua tham txog yog qhovaxial installation txoj hauj lwmntawm lub valve plunger nyob rau hauv lub valve lub cev -tshwj xeeb, qhov clearance ntawm lub plunger tswj ntug thiab qhov chaw nres nkoj spill thaum lub solenoid yog de-energised. Qhov kev tshem tawm no, feem ntau hu ua "zero-offset," txiav txim siab lub sijhawm pib ntawm kev txhaj tshuaj ua ntej yuav siv cov nyiaj solenoid. Yog tias qhov kev tshem tawm no sib txawv ntawm lub twj tso kua mis mus rau lub twj tso kua mis (vim kev tsim kev kam rau siab lossis kev teeb tsa tsis raug), lub sijhawm hloov pauv ntawm lub hauv paus, xav kom ECU siv cov kev kho loj dua, uas tuaj yeem txo qhov kev hloov pauv ntawm lub sijhawm. Bosch EUP 7.010 yog lub valve plunger tshwj xeeb tsim rau Bosch 0414750, 0414755, thiab 0414799 series twj tso kua mis, nrog rau qhov tshwj xeeb tsim tshwj xeeb:installation txoj hauj lwm sib xws los ntawm precision-av nrhiav lub xub pwguas mates nrog ib tug coj nres nyob rau hauv lub valve lub cev. Qhov chaw ntawm lub xub pwg no ua kom ntseeg tau tias lub valve plunger tus tswj ntug zaum ntawm qhov chaw axial uas tau hais tseg rau ntawm qhov chaw nres nkoj, tshem tawm qhov xav tau ntawm shims lossis ntsuas thaum lub sijhawm teeb tsa. Qhov tshwm sim yog qhov sib txawv ntawm xoom-offset tsawg dua ± 0.02 hli thoob plaws txhua lub twj tso kua mis, lav tias lub sijhawm txhaj tshuaj tseem nyob hauv ECU lub qhov rais nominal calibration yam tsis tas yuav hloov kho tus kheej. Thaum lub valve plunger tsis siv qhov chaw nyob no (xws li, tom qab qhov chaw muag khoom), txoj haujlwm teeb tsa tsuas yog txiav txim siab los ntawm solenoid preload, uas tuaj yeem sib txawv ntawm ± 0.1 hli, hloov lub sijhawm lub sijhawm mus txog 2℃crank lub kaum sab xis ntawm 1,800 rpm. Qhov no ua rau lub tog raj kheej-rau-lub tog raj kheej lub sijhawm hloov pauv uas tsis tuaj yeem kho tag nrho los ntawm ECU, ua rau muaj kev sib tsoo tsis sib xws thiab ua kom cov pa tawm ntau ntxiv. Phau ntawv qhia no redefines lub valve plunger li amechanical calibration tivthaiv, qhov twg installation txoj hauj lwm tseem ceeb npaum li lub plunger's geometry.

 

EUP 7.010 valve plunger yog ib qho kev hloov pauv ncaj qha rau Bosch EUP series hauv qab no, tshwj xeeb tsim los ua kom yooj yim installation thiab txhim kho lub sijhawm sib xws:

Bosch 0414750- 12-valve EUP hauv MAN D20 / D26, DAF MX cav (Euro 3/4)

Bosch 0414755- Txhim kho Euro 4/5 version rau Volvo D13 thiab Renault DXi

Bosch 0414799- High-flow industrial variant rau gensets thiab marine

Cov rooj sib tham EUP no muaj nyob hauv:

MAN TGA, TGS, TGX- D20, D26 cav

DAF XF, CF- MX-11, MX-13 cav

Volvo FH, FM- D13 series (Euro 4/5)

Renault hwm, Magnum– DXi 11, 13

Cov ntawv thov kev lag luam- Liebherr, MTU, Cummins QSK siv Bosch EUP

EUP 7.010 yog txheeb xyuas los ntawm nwsintegral nrhiav lub xub pwg-a precision-av flange nyob rau hauv 2.5 mm los ntawm kev tswj ntug, uas yog ib tug zoo nres rau lub valve lub cev. Cov yam ntxwv no tsis muaj nyob rau yav dhau los valve plungers (6.990, 6.995, 7.000, 7.005). Bosch tus lej feem ntau yog 7.010-xxx lossis 2 418 455 5xx. Nco ntsoov txheeb xyuas qhov muaj nyob ntawm lub xub pwg nyom thaum xaj.

 

Parameter	Specification
Bosch Reference	EUP 7.010 (2 418 455 5xx series - paub meej nrog lub twj tso kua mis)
Hom Lub Npe	Valve plunger nrog nrhiav lub xub pwg nyom rau txoj hauj lwm sib xws
Khoom siv hauv paus	Cov cuab yeej kub ceev (ASP 2053) - HRC 62-66
Nto Txheej	DLC (pob zeb diamond zoo li carbon) - 3-5 µm, Ra Tsawg dua lossis sib npaug rau 0.04 µm
Tswj Ntug Av Dav	0.75mm ib
Nrhiav Lub xub pwg nrug deb	2.5 hli los ntawm kev tswj ntug - muab axial nres
Installation Position kam rau ua	± 0.02 hli (vs. ± 0.10 hli rau hom tsis yog lub xub pwg nyom)
Zero-Offset Variation	Tsawg dua los yog sib npaug rau 0.02 hli - tshem tawm qhov xav tau ntawm shims
Base Timing Variation	Tsawg dua los yog sib npaug li 0.5℃crank kaum sab xis (vs . 2℃rau tsis yog lub xub pwg nyom)
Mating Fit Clearance	0.004-0.008 hli (nrog valve lub cev bore)
Pom zoo hloov	800,000–1,000,000 km (ntawm txoj kev loj) / 8,000–10,000 teev (kev lag luam)
Txoj kev tshuaj xyuas	Nrhiav lub xub pwg nyom; tswj ntug mob

 

EUP 7.010 uas tau teeb tsa yam tsis muaj lub xub pwg nyom (lossis nrog lub xub pwg puas) qhia nws tus kheej los ntawm cov tsos mob tshwj xeeb:

Lub tog raj kheej-rau-lub tog raj kheej lub sijhawm tsis sib npaug- ntsuas los ntawm injector tam sim no waveform tsom xam; variations ntau tshaj 0.2 ms ntawm lub tog raj kheej.

Qhov kub tsis sib xws- ib los yog ntau lub tog raj kheej qhia 15-25℃siab dua EGT, qhia txog lub sij hawm siab heev.

Txo lub sijhawm ECU txoj cai- ECU lub sijhawm kho yog nyob ntawm lawv qhov siab tshaj plaws, qhia tias lub sijhawm pib yog sab nraum lub qhov rais calibration.

Cov pa luam yeeb dawb thaum pib txias- retarded puag lub sij hawm ua rau tsis tiav combustion.

A workshop test: remove the solenoid and measure the distance from the valve plunger's control edge to the spill port using a depth gauge (after removing the solenoid and spring). The measurement should fall within a specified range; if it deviates by >0.05 hli, lub plunger yuav tsis raug zaum los yog lub xub pwg nyom yuav hnav.

 

Lub hauv paus ntsiab lus ntawm kev siv qhov chaw nrhiav kom paub tseeb tias qhov kev teeb tsa zoo ib yam yog qhov tseem ceeb sib npaug hauv cov kab hluav taws xob injector tswj li qub, qhov twg tus tsav valve plunger txoj haujlwm pib cuam tshuam rau lub sijhawm teb. Muaj ntau hom-rail injectors siv precision-hauv av nres los teeb tswj valve stroke. Kev nkag siab txog EUP 7.010 qhov chaw nrhiav lub xub pwg muab cov kws tshaj lij nrog kev paub ncaj qha mus rau kev sib koom ua ke thiab cov txheej txheem calibration.

 

Q1: Kuv puas tuaj yeem siv EUP 7.010 yam tsis muaj lub xub pwg nyom los ntawm kev ntxiv shim?
Tsis yog-lub 7.010 yog tsim los nrog lub xub pwg nyom; Ntxiv ib qho shim yuav hloov qhov chaw thiab yuav ua rau lub xub pwg nyom tsis zaum. Yog tias koj muaj lub plunger uas tsis yog lub xub pwg nyom, nws tsis tuaj yeem hloov pauv nrog 7.010. Ib txwm siv lub plunger kom raug rau koj lub twj tso kua mis serial tooj.

Q2: Yuav ua li cas yog tias lub xub pwg nyom hnav los ntawm 0.02 hli?
Ib qho 0.02 hli hnav hloov xoom-offset los ntawm tib tus nqi, uas tuaj yeem hloov lub sijhawm lub hauv paus los ntawm kwv yees li 0.5℃crank lub kaum sab xis. Thaum ECU tuaj yeem them nyiaj rau kev hloov me me, ntau lub tog raj kheej nrog kev hnav sib txawv yuav ua rau tsis sib xws. Yog tias lub xub pwg pom pom hnav, hloov lub plunger.

Q3: Kuv puas yuav tsum tau ua lub solenoid calibration tom qab txhim kho 7.010?
Tsis yog-lub 7.010 yog tsim los kom phim lub npe xoom-offset siv hauv ECU calibration. Txawm li cas los xij, nws yog ib qho kev xyaum zoo los ua qhov kev hloov kho solenoid rov pib siv software kuaj mob kom tshem tawm cov kev kawm kho los ntawm lub plunger yav dhau los.

Q4: Kuv yuav ua li cas thiaj paub tseeb tias qhov chaw lub xub pwg nyom raug zaum?
Tom qab kev teeb tsa, siv lub dial taw qhia ntawm lub valve plunger kawg (siv tau ntawm lub solenoid bore) los ntsuas qhov kev ua si axial. Lub rooj zaum kom raug yuav tsum tsis muaj kev ua si; ib qho kev txav mus los qhia tau hais tias lub xub pwg nyom tsis tau zaum tag nrho, tejzaum nws yog vim cov khib nyiab lossis kev puas tsuaj.

Q5: Puas yog EUP 7.010 sib haum nrog high-flow 0414799 twj siv hauv gensets?
Yog-lub 7.010 yog sib xws nrog tag nrho 0414750/755/799 series twj. Lub xub ntiag ntawm lub xub pwg kom ntseeg tau tias xoom-offset tsis hais lub twj tso kua mis ntws ntsuas. Nws muaj txiaj ntsig tshwj xeeb hauv cov ntawv thov kev lag luam uas cov twj tso kua mis tuaj yeem hloov kho los ntawm cov kws tshaj lij sib txawv.

Q6: Lub xub pwg nyom puas tuaj yeem raug puas los ntawm over-torquing lub solenoid tuav-down txiv ntoo?
Indirectly-over-torquing tuaj yeem cuam tshuam lub valve lub cev, hloov qhov chaw nres tsheb thiab cuam tshuam rau lub xub pwg zaum. Ib txwm siv lub zog tshwj xeeb rau cov txiv ntoo solenoid. Lub xub pwg nyom nws tus kheej yog tsim los tiv thaiv ib txwm clamping rog tab sis tuaj yeem raug puas tsuaj los ntawm kev cuam tshuam los yog misalignment.

 

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: bosch eup 7.010 valve plunger - kev teeb tsa txoj haujlwm sib xws & xoom-offset tshem tawm rau 0414750/755/799 series chav tsev twj, Tuam Tshoj bosch eup 7.010 valve plunger - kev teeb tsa txoj haujlwm sib xws & xoom-offset tshem tawm rau 0414750 / 75 series manufacturers, 9 units