Bosch CP3-2 Roj Pump Overhaul Set - Theem-Angle Synchronization Kit Rau 0445020175 Peb-Plunger Common Rail Pumps

CP3-2 Cov Khoom Siv Pabcuam mus txog CP3 lub twj tso kua mis overhaul los ntawmtheem-angle synchronization, lub hom phiaj kev sib hloov kev sib hloov ntawm lub nplhaib cam thiab tsav ncej. Bosch CP3-2 twj-qhia los ntawm OE siv0445020175thiab haum rau Ford 2.4L / 3.0L TDCI, PSA 2.7L / 3.0L HDI, Jaguar 2.7L / 3.0L V6 diesel, thiab Land Rover 2.7L TDV6- txhim kho tus yam ntxwv "theem drift" qhov twg lub nplhaib cam hloov mus txog 1.2 tus lej tseem ceeb rau kev xa mus rau qhov tseem ceeb ntawm kev tsav tsheb. cov roj tsis sib xws. Qhov kev sib tw no tsim qhov kev txiav txim thib 3 uas xav tias yog "shudder" los ntawm lub chassis. CP3-2 qhia atheem-lock nplhaib-ib lub nplhaib hlau sib cais nrog kev cuam tshuam haum uas xauv lub nplhaib cam rau ntawm lub tog raj kheej hauv txoj haujlwm kom raug. Lub nplhaib suav nrog plaub qhov ntsuas qhov ntsuas uas sib haum nrog cov ncej lub sijhawm; aligning cov qhab nia restores lub kaum sab xis rau 0℃± 0.1 degree. Lub twj tso kua mis synchronized txo qhov thib 3 - xaj kev vibration amplitude los ntawm 0.8 mm / s txog 0.1 mm / s, tshem tawm cov shudder.

Lub CP3-2 tsav tus yuam sij, uas xa cov torque ntawm lub ncej mus rau lub nplhaib cam, txhim kho 0.04mm ntawm backlash los ntawm hnav, tso cai rau lub nplhaib cam kom "rattle" tiv thaiv tus yuam sij thaum lub sij hawm load reversals. Lub CP3-2 hloov tus yuam sij steel nrog axoom-backlash key-tus yuam sij laminated nrog 0.02mm tuab caij nplooj ntoos hlav- steel nplooj uas preload tus yuam sij rau ob qho tib si. Cov nplooj (tsib, 0.04mm tuab txhua) ua raws li lub caij nplooj ntoos hlav pob, tswj xoom backlash hla ± 5 Nm ntau yam. Kev tshem tawm backlash tiv thaiv lub cam nplhaib qhov cuam tshuam rau tus yuam sij tsav, txo cov suab nrov los ntawm 6 dB thiab txuas lub neej tseem ceeb mus tas li.

Lub CP3-2 plunger chim muaj qhov sib tsoo (txuas lub qhov nkag mus rau lub tshuab nqus tsev twj) nrog lub ntsej muag ntse uas txhim kho 0.015mm burr nyob rau lub sijhawm, txo qhov chaw ntws zoo los ntawm 8%. CP3-2 suav nrogdeburring pins-ob pob zeb diamond-coated mandrels ( ntxhib thiab tiav) uas tau kos los ntawm tus ntoo khaub lig- qhov kom tshem tawm cov burr thiab tsim ib lub vojvoog 0.005mm ntawm ntug. Tus ntoo khaub lig deburred- qhov rov qab qhov chaw ntws los ntawm 7.8%, txhim kho lub plunger tus nqi sau los ntawm 3%.

CP3-2's thrust washer (uas yuav siv lub axial load ntawm lub plungers) muaj ib tug du nto uas txhawb nqa adhesion thiab scuffing. CP3-2 khoom siv amicro-textured thrust washernrog lub laser -etched qauv ntawm 0.01mm sib sib zog nqus criss- hla cov channel (40μm dav, 50μm qhov sib nrug). Cov channel ua raws li cov khoom siv roj nplua nyeem, txo cov kev sib txhuam coefficient ntawm 0.12 txog 0.04 thiab zoo tshem tawm scuffing. Lub tshuab ntxhua khaub ncaws kuj muajkos duab hnav: thaum cov channel tsis pom lawm (pw nrog cov khib nyiab pov tseg los yog hnav tawm), lub tshuab ntxhua khaub ncaws yuav tsum tau hloov- cov khoom siv suav nrog lub tshuab ntxhua khaub ncaws hloov.

Lub CP3-2's metering valve (uas tswj cov roj ntws mus rau hauv lub twj tso kua mis) muaj txoj hauj lwm sensor uas drifts los ntawm 2.5% nyob rau lub sij hawm vim cov kua roj vanish buildup ntawm lub sensor lub magnetic ncej. Qhov kev sib tw no ua rau ECU cov lus txib ntws los ua qhov tsis sib xws ntawm qhov tseeb valve. CP3-2 suav nrog atxoj hauj lwm- tawm tswv yim stabilized valvenrog ib tug coated hlau nplaum ncej (Parylene-C, 0.02mm tuab) uas tiv thaiv cov kua roj vanish adhesion. Lub tswv yim teeb liab drift yog txo rau<0.5%, improving the valve's accuracy and reducing the ECU's fuel trim correction by 6%.

Q1: Cov theem-lock nplhaib muaj qhov cuam tshuam haum- nws yuav ua li cas thiaj li tsis ua rau lub nplhaib lossis lub nplhaib?
A: Lub nplhaib yog rhuab mus rau 150℃(siv cov induction rhaub) ua ntej installation. Cov cua kub nthuav tawm lub nplhaib los ntawm 0.08mm, tso cai rau nws hla lub nplhaib thiab lub nplhaib. Thaum nws txias, qhov cuam tshuam haum xauv cov khoom hauv qhov chaw. Lub nplhaib muaj lub chamfered sab hauv ntug kom tsis txhob khawb thaum lub sijhawm teeb tsa.

Q2: Yuav ua li cas tus xoom-backlash tsav tus yuam sij laminated tsim tshem tawm backlash yam tsis muaj kev sib txhuam?
A: Lub caij nplooj ntoos hlav- steel nplooj yog preloaded rau 8 N txhua, kom ntseeg tau tias tus yuam sij qhov chaw nyob ib txwm nyob rau hauv kev sib cuag nrog lub ncej thiab cam nplhaib. Lub preload yog tsawg txaus (<40 N total) that the key can still slide during assembly, but the design eliminates the free play (backlash) that causes rattling. The leaves are also self-lubricating (impregnated with graphite), so friction is minimized.

Q3: Cov pins deburring yog pob zeb diamond-coated-Kuv siv tau li cas yam tsis ua rau tus ntoo khaub lig- qhov?
A: Cov pins tau muab tso rau hauv tus ntoo khaub lig- qhov thiab kos los ntawm kev siv lub zog rub (tsis twisting). Tus pin ntxhib (pob zeb diamond ntxhib, 120μm) tshem tawm cov burr, thiab tus pin tiav (pob zeb diamond zoo, 40μm) ua rau 0.005mm radius. Cov khoom siv suav nrog lub tes tsho qhia uas nyob nruab nrab ntawm tus pin hauv tus ntoo khaub lig- qhov los tiv thaiv phab ntsa puas. Txhua tus pin raug ntsuas rau 20 siv; cov khoom siv suav nrog lub txee siv.

Q4: Dab tsi yog qhov pom kev pom tias micro-textured thrust washer's channel tau hnav?
A: Nyob rau hauv 10 × magnification, lub laser -etched channel tshwm li cov kab tsaus nti ntawm lub teeb tom qab. Thaum cov channel raug hnav (pem nrog cov khib nyiab los yog hnav du), lawv tshwm sim li duab ntxoov ntxoo los yog tsis pom. Cov khoom siv suav nrog ahnav- daim npav sib pivnrog cov duab ntawm kev noj qab haus huv thiab hnav raws li kev siv.

Q5: Txoj hauj lwm - tawm tswv yim stabilized metering valve muaj Parylene -C txheej- cov txheej no puas cuam tshuam rau lub sensor lub magnetic teb?
A: Parylene-C yog ib qho dielectric polymer (tus txheeb ze permittivity 3.1) uas tsis tiv thaiv los yog cuam tshuam cov hlau nplaum sib nqus- nws tsuas yog muab kev cuam tshuam rau cov kua roj vanish adhesion. Cov txheej yog 0.02mm tuab, uas yog 1/50th ntawm lub magnetic ncej qhov sib txawv (1.0mm), yog li cov nyhuv ntawm magnetic teb yog qis dua 0.1%.

Q6: Cov khoom siv CP3-2 no tau teev tseg rau 0445020175-nws puas haum lub twj tso kua mis siv hauv 2.7L TDV6 nrog cov roj tsheb hlau hlau?
A: Yog-lub 2.7L TDV6 (Land Rover Discovery 3, Range Rover Sport) siv lub twj tso kua mis 0445020175. Cov hlau hlau roj tsheb ciav hlau yog cov khoom sib cais; lub twj tso kua mis fittings tsis hloov. Cov khoom siv O-rings thiab tooj liab washers yog sib xws nrog cov hlau rail fittings. Qhov chaw torque rau txoj kev tsheb ciav hlau sib txuas yog 28 Nm- qhov no tau teev nyob rau hauv cov khoom siv daim npav torque, cais los ntawm lub twj tso kua mis qhov tseem ceeb torque.

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:

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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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