WEIFU U853 / 00U853 Roj Txhaj Plunger - Cov Khoom Siv Hluav Taws Xob Ua Haujlwm Zoo Tshaj Plaws rau Kev Siv Hluav Taws Xob Rau Kev Siv Hluav Taws Xob

Raws li cov tsheb ciav hlau sib xyaw ua ke thawb mus rau siab dua RPMs - nrog cov tsheb diesel tam sim no tshaj 4,500 rpm thiab cov cav tov muaj kev khiav hauj lwm ntawm 2,500 rpm thiab siab dua - tus cwj pwm ntawm lub plunger ua qhov tseem ceeb. Lub plunger yog ib qho khoom siv sib txuas uas yuav tsum tau nrawm thiab nrawm nrog txhua qhov mob stroke. Nyob rau hauv high speeds, lub inertial rog generated los ntawm no reciprocating tsab ntawv tsa suab ua piv rau cov hydraulic rog ua rau lub plunger, ua rau.dynamic displacement yuam kev- lub plunger qhov tseeb txoj hauj lwm deviates los ntawm lub cam txoj hauj lwm commanded vim inertia. Qhov no manifests variations nyob rau hauv zoo mob stroke, ua rau inconsistent roj xa thiab siab fluctuations. Thaum feem ntau cov qauv plunger tsom rau qhov zoo li qub geometry thiab cov khoom siv, lawv tsis quav ntsej qhov inertial dynamics ntawm qhov txav txav. CovU853 / 00U853los ntawm WEIFU qhia ahuab hwm coj-optimized inertia them nyiaj tsim- ua ke ntawmKev tshem tawm cov khoom siv tswv yimthiabkev hloov ntawm qhov nruab nrab ntawm pawguas txo cov inertia zoo ntawm lub plunger, txhim kho nws cov lus teb dynamic thiab xyuas kom meej tias lub plunger ua raws cov cam profile kom raug thoob plaws tag nrho cov kev ceev.

U853 nta ob qhov tseem ceeb loj-optimization nta:

Feature 1 - Txo Cov Crown Mass:
Lub crown seem yog sculpted nrog aconcave nyemnyob rau hauv qab, tshem tawm cov khoom los ntawm lub cheeb tsam uas tsis tseem ceeb. Qhov no yuav txo tau tag nrho cov reciprocating huab hwm coj los ntawm 8% yam tsis muaj kev cuam tshuam lub crown lub siab-generating nto los yog nws structural kev ncaj ncees.

Feature 2 – Center-of-Mass Shift:
Kev tshem tawm huab hwm coj yog biased rau sab sauv, hloov qhov nruab nrab ntawm huab hwm coj los ze zog rau cov lus qhia. Qhov no txo ​​covmuaj txiaj ntsig inertia- kev tiv thaiv rau acceleration thiab deceleration - los ntawm 14%, raws li qhov loj tam sim no zoo dua faib raws lub plunger lub axis.

Cov yam ntxwv no ua haujlwm ua ke kom txo tau qhov yuam kev hloov pauv hloov pauv hloov pauv - qhov sib txawv ntawm lub koob yees duab txoj haujlwm thiab lub plunger qhov tseeb txoj hauj lwm - tshwj xeeb tshaj yog nyob rau hauv high speeds uas inertial rog tseem ceeb.

Ntsuas dynamic teb cov txiaj ntsig:

Dynamic displacement yuam kev @ 3,000 rpm: txo los ntawm 0.12 hli rau0.04mm ib - a 67% txo

Siv tau inertia (reciprocating mass): txo los ntawm14%

Pumping ncua (cam motion → siab tsim): txo los ntawm8%ntawm 2,500 rpm

Kev xa mus rau lub voj voog hloov pauv @ kev kub ceev: txo los ntawm ± 3.1% rau±1.4% - a 55% kev txhim kho

Roj xa tawm ntawm kev kub ceev (2,500 → 3,500 rpm): txo los ntawm 8.5% rau3.2% - a 62% kev txhim kho

Acceleration quab yuam ntawm lub cam follower: txo los ntawm 14%, ncua lub neej ua raws

Dimensional parameters:

Plunger txoj kab uas hla:10.5 hli(IT4, roundness Tsawg dua lossis sib npaug ntawm 0.8 μm) - phiaj xwmcompact-rau-nruab nrabcav (2.5-4.5 litres)

Ua haujlwm stroke:13.0mm 3

Kev txo qis: 8% tag nrho reciprocating loj txo

Center-of-mass hloov: txo qis los ntawm 2.5 mm rau ntawm nqe lus qhia

Concave nyem qhov tob: 0.6 mm ntawm lub crown underside

Helix: ib leeg-lead, sab laug-tes, tus qauv kev nce qib

Maximum rail siab:1,800 Ib (burst >2,100 bar)

Internal to @ 1,400 bar:6.2 ml / min- tsis cuam tshuam los ntawm kev ua kom zoo

U853 yog forged los ntawm achromium-molybdenum-vanadium hlau(DIN 1.2367), carburised rau 0.55 hli (62 - 64 HRC). Qhov loj-optimising nyem yog machined siv a5-axis CNC tshuab dhosnrog lub pob zeb diamond-tipped daim ntawv cuab yeej, ua tiav qhov siab siab ntawm ± 0.02 hli thiab nto tiav ntawm Ra 0.032 μm. Cov khoom tshem tawm yog tswj hwm kom tsis txhob tsim kev ntxhov siab, thiab tag nrho cov npoo yog radiused (0.1 hli) kom muaj zog qaug zog. Txhua lub plunger yog ntsuas thiab tshuaj xyuas kom pom tseeb qhov tseeb; deviations tshaj ± 0.5% ntawm lub hom phiaj loj ua rau tsis lees paub.

U853 yog qhov tshwj xeeb tshaj yog muaj txiaj ntsig rau cov cav uas nquag ua haujlwm ntawm qhov siab RPMs - cov neeg caij tsheb ua haujlwm siab, kev siv motorsport, thiab cov cav tov nrog ntau qhov ceev:

TSI HP 3.5thiabHP 4- siv nyob rau hauv 2.5 - 4.5-liter tsheb neeg nrog caij thiab lub teeb coj mus muag diesel xyaw

Bosch CP1thiabCP 3- Haum rau BMW 2.0d, Ford 2.0 TDCI, PSA 2.2 HDi, thiab Volkswagen EA288

Denso HP 3- tam sim no hauv Toyota, Nissan, thiab Mazda diesel qauv

QR-linked compatibility cuab tam (ntawm lub thawv) paub meej tias haum los ntawm lub twj tso kua mis qauv, kom ntseeg tau tias cov inertia-compensated tsim yog raug matched.

Ntawm lub ntim ntim, peb muab adaim duabMuab piv rau lub plunger qhov tseeb txoj hauj lwm piv rau lub cam txoj hauj lwm txib ntawm kev kub ceev: lub U853 qhia tau hais tias nyob ze-zoo meej mus txog qhovtwg (ntsuab kab), thaum tus qauv plunger qhia ib tug tseem ceeb lag (liab kab). Daim duab tau sau tseg nrog "Inertia-Compensated Tracking" thiab "Un-Compensated Tracking" zones. Tsis tas li ntawd, txhua lub plunger nqa alaser-engraved inertia cim(ib lub xob laim hauv ib lub voj voog) ntawm nws lub hauv paus, qhia txog qhov loj-optimized tsim.

Q1:Vim li cas plunger inertia teeb meem - tsis lub cam tsuas yog thawb lub plunger?
A:Nyob rau hauv high speeds, lub plunger lub inertia ua rau nws mus lag tom qab lub cam lub suab. Thaum lub cam accelerates lub plunger, lub plunger lub inertia resists, ua rau ncua. Thaum lub cam decelerates, lub plunger txuas ntxiv mus, ua rau overshoot. Qhov kev ua yuam kev dynamic no cuam tshuam rau kev mob stroke thiab kev xa roj sib xws.

Q2:Kev txo qis npaum li cas yog ua tiav nrog U853, thiab nws ua li cas yam tsis ua kom lub plunger tsis muaj zog?
A:U853 ua tiav 8% txo qis hauv cov khoom sib txuas los ntawm kev tshem tawm cov khoom los ntawm cov yas hauv qab - ib cheeb tsam uas muaj kev ntxhov siab tsawg thaum ua haujlwm. Cov hlua khi thiab cov lus qhia, uas nqa cov khoom tseem ceeb, tseem tsis cuam tshuam. FEA lees paub tias lub plunger khaws tag nrho cov qauv kev ncaj ncees.

Q3:Puas yog qhov txo qis cuam tshuam rau lub plunger lub sealing kev ua tau zoo los yog xau?
A:Tsis muaj - txoj hlua khi thiab phau ntawv qhia tsis hloov pauv. Qhov loj txo yog nyob rau hauv lub crown cheeb tsam, uas tsis koom nyob rau hauv sealing. Cov yam ntxwv ntawm cov dej xau thiab lub siab-tsim yog zoo ib yam rau tus qauv plunger.

Q4:Puas yog U853 haum rau cov tshuab qis qis (gensets, marine) qhov twg inertia tsawg dua ntawm qhov teeb meem?
A:U853 muab nws cov txiaj ntsig zoo tshaj plaws ntawm kev kub ceev. Rau cov ntawv thov qis qis, kev txhim kho yog tsawg, thiab tus qauv plunger yuav txaus. Peb cov cuab yeej sib raug zoo tuaj yeem pab txiav txim siab yog tias U853 yog qhov kev xaiv zoo rau koj daim ntawv thov.

Q5:Kuv tuaj yeem txheeb xyuas tau li cas tias qhov kev ua kom zoo tshaj plaws tseem muaj txiaj ntsig tom qab kev pabcuam?
A:Tshem tawm lub plunger thiab hnyav nws - qhov loj yuav tsum nyob rau hauv 1% ntawm qhov hnyav nominal teev nyob rau hauv lub thawv. Tsis tas li ntawd, tshuaj xyuas lub geometry nyem - yog tias nws tau raug puas los yog muaj cov deposits, cov txiaj ntsig loj yuav raug txo. Peb muab ib daim duab siv rau ntawm lub thawv.

Q6:Puas yog U853 hloov U775 (linearisation) los yog lawv ntxiv?
A:Lawv hais txog ntau yam ntawm plunger dynamics. U775 linearises lub siab-stroke kev sib raug zoo, thaum U853 txo inertial yuam kev ntawm kev kub ceev. Lawv yog complementary - U775 muab cov lus teb zoo sib xws, thiab U853 xyuas kom meej tias lub plunger ua raws lub cam kom raug kom ua tiav cov lus teb.