Nrog lub zog ntau ntawm 110-275hp thiab Tier 3 ua raws, Cummins QSB series yog lub cav tseem ceeb rau cov loaders, excavators, thiab lwm yam khoom siv. Rau qhov siab - zaus, hnyav-load, plua plav, thiab vibrating kev ua haujlwm ntawm kev tsim kho tshuab, suab nrov thiab lub zog siv tau tuaj yeem ua kom zoo dua los ntawm kev sib xyaw ua ke ntawm "kev hloov kho thev naus laus zis + kev sib koom ua ke + kev saib xyuas meej," ntsuas cov cuab yeej ua haujlwm thiab kev ua haujlwm zoo.
QSB cov cav twb tau ua tiav lub suab nrov txo qis ntawm 5-9dB los ntawm kev ua kom zoo hauv lub tog raj kheej. Kev ua kom zoo ntxiv yog tsom mus rau peb lub suab nrov nrov: kev sib txuas, kev siv tshuab, thiab kev sib kis.
1. Optimizing Combustion Noise Sources: Precise Electronic Control
Nruab nrog lub piezoelectric common rail nozzle, nws siv ntau yam - txhaj tshuaj ntawm "pilot + main + post- txhaj." Nyob rau hauv qis load, ob mus rau peb me me - koob txhaj tshuaj pilot txhaj txo combustion shock, txo nyob rau hauv -lub tog raj kheej siab fluctuations los ntawm 30% thiab txo combustion nrov los ntawm 4-6dB.
2. Kev txhim kho lub suab nrov ntawm lub tshuab: Dual Control ntawm kev sib txhuam thiab kev vibration
Nitrided crankshaft thiab PVD-coated piston pins, ua ke nrog qis-viscosity, ntev- lub neej cav roj (xws li SAE 5W-30), txo tag nrho cov neeg kho tshuab kev sib txhuam los ntawm 15%. Lub helical meshing thiab elastic bushing tsim rau lub sij hawm iav tsheb ciav hlau txo cov suab nrov meshing rau qis dua 75dB.
3. Acoustic cais ntawm txoj kev sib kis: Scenario-Specific Encapsulation Design
Rau qhov chaw qhib xws li cov mines, "pob zeb wool + aluminium foil composite" soundproofing enclosure yog siv los npog siab - cov suab nrov zaus xws li lub tog raj kheej taub hau thiab turbochargers, muab txog 25dB ntawm lub suab rwb thaiv tsev. Rau kev ua haujlwm sab hauv tsev, lub suab nrov txo qis tuaj yeem muab ntxiv kom txo qis suab nrov los ntawm 10-12dB los ntawm acoustic yoj tshem tawm tshuab.
Energy Consumption Optimization: Ib qho kev daws teeb meem rau kev sib xyaw ua kom zoo thiab lub zog rov qab
Leveraging QSB series hluav taws xob tswj platform, qhov system no ua tiav 5-15% roj noj txo los ntawm kev hloov kho peb zaug rau cov roj system, kev noj haus, thiab kev tswj fais fab:
1. Precise Fuel System Consumption Control: Optimizing tag nrho cov roj saw ntawm kev txhaj tshuaj mus rau combustion
Intelligent Injection Strategy: Dynamically switches txhaj hom raws li kev khiav hauj lwm tej yam kev mob - siv ib zaug, siab - txhaj tshuaj thaum hnyav - load shoveling thiab ntau txhaj tshuaj thaum lub sij hawm hloov lwm lub tsev. Roj txhaj ntim yog txo kom qis dua 1.2mg / stroke ntawm idle, txo qis roj noj los ntawm 20%.
2. Txhim kho kev noj qab haus huv: VGT Turbocharger tag nrho -Load Adaptability
Variable-Geometry Turbine Technology: VGT turbocharger kaw nws cov vanes ntawm qis rpm (tsawg dua lossis sib npaug li 1500rpm) kom ua kom cov pa tawm nrawm dua, txo lub sijhawm turbine teb los ntawm 0.8s thiab nce torque los ntawm 25%, txo qis dua - lub zog hluav taws xob los ntawm ins. Ntawm qhov siab rpm, cov vanes qhib kom tau txais cov cua nkag, txhim kho kev sib txuas ntawm 6%.
3. Kev Siv Hluav Taws Xob Rov Qab thiab Kev Tswj Xyuas: Kev txo qis zog tsis zoo
Pov tseg Thaum tshav kub kub rov qab: Cov cua kub ntawm lub turbine rov qab los ntawm cov pa roj cua kub exchanger kom sov lub coolant thiab hydraulic roj. Qhov no txo qhov sov- lub sij hawm nce los ntawm 40% thaum pib ntawm -20 degree, txuag roj thaum lub sij hawm sov so.
