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    Doosan Dl08 S Engine Service Training

    Uploaded by

    jose
    The document discusses Doosan's DL08 S engine service training. It covers 1) the common rail system, 2) sensors, 3) the ECU, 4) the common pump, 5) the common rail, 6) injectors, 7) valve gap adjusting and maintenance, 8) the SCR system, 9) fault codes, and 10) troubleshooting. The common rail system allows for higher injection pressures, more flexible timing and frequency, and better control of injection quantities compared to mechanical fuel injection systems. This helps engines meet stronger emission regulations for NOx and particulate matters.

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    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd

    Doosan Dl08 S Engine Service Training

    Uploaded by

    jose
    255 views10 pages
    The document discusses Doosan's DL08 S engine service training. It covers 1) the common rail system, 2) sensors, 3) the ECU, 4) the common pump, 5) the common rail, 6) injectors, 7) valve gap adjusting and maintenance, 8) the SCR system, 9) fault codes, and 10) troubleshooting. The common rail system allows for higher injection pressures, more flexible timing and frequency, and better control of injection quantities compared to mechanical fuel injection systems. This helps engines meet stronger emission regulations for NOx and particulate matters.

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    DOOSAN

    Original Title

    Doosan Dl08 s Engine Service Training

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    The document discusses Doosan's DL08 S engine service training. It covers 1) the common rail system, 2) sensors, 3) the ECU, 4) the common pump, 5) the common rail, 6) injectors, 7) valve gap adjusting and maintenance, 8) the SCR system, 9) fault codes, and 10) troubleshooting. The common rail system allows for higher injection pressures, more flexible timing and frequency, and better control of injection quantities compared to mechanical fuel injection systems. This helps engines meet stronger emission regulations for NOx and particulate matters.

    Copyright:

    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd
    Download as pdf or txt
    255 views10 pages

    Doosan Dl08 S Engine Service Training

    Uploaded by

    jose
    The document discusses Doosan's DL08 S engine service training. It covers 1) the common rail system, 2) sensors, 3) the ECU, 4) the common pump, 5) the common rail, 6) injectors, 7) valve gap adjusting and maintenance, 8) the SCR system, 9) fault codes, and 10) troubleshooting. The common rail system allows for higher injection pressures, more flexible timing and frequency, and better control of injection quantities compared to mechanical fuel injection systems. This helps engines meet stronger emission regulations for NOx and particulate matters.

    Copyright:

    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd
    Download as pdf or txt
    of 10

    Doosan Dl08 S Engine Service Training

    Full download: http://manualplace.com/download/doosan-dl08-s-engine-service-training/


    DL08 S Engine service training

    Customer Satisfaction Team


    2008. 9.22
    This is the cut pages sample. Download all 149 page(s) at: ManualPlace.com
    Contents
    1. Common Rail System
    2. Common Rail Engine
    3. ECU
    4. CP Pump
    5. Common Rail
    6. Injector
    7. Sensors
    8. Valve Gap Adjusting & Maintenance
    9. SCR System
    10. Fault Code
    11. Trouble Shooting
    1. Common Rail System
    DL08 S/DV11 S
    (Euro-3,4)
    Issues of Diesel Engine

    Emission
    - Nitric oxide (NOx) Regulation
    - Particulate matter (PM)
    - Power density NOx, PM,…
    - Noise
    - …….
    Emission Regulation (EU) - 1
    Off-Road Engines (g/kWh)
    Net Power Effective
    Regulation CO HC NOx PM Engine
    kW(HP) from
    Stage2 Jan. 2003 5.0 1.0 6.0 0.3 DB58TIS
    75 130 Stage3A Jan. 2007 5.0 4.0 0.3 DL06
    (100) (175) Stage3B Jan. 2012 5.0 0.19 3.3 0.025
    Stage4 Oct. 2014 5.0 0.19 0.4 0.025
    Stage2 Jan. 2002 3.5 1.0 6.0 0.2 DE08TIS, DE12TIS
    130 560 Stage3A Jan. 2006 3.5 4.0 0.2 DL08, DV11
    (175) (750) Stage3B Jan. 2011 3.5 0.19 2.0 0.025
    Stage4 Jan. 2014 3.5 0.19 0.4 0.025

    On-Road Engines (Heavy Duty) (g/kWh)


    Effective
    Regulation CO HC NOx PM Engine
    from
    Euro-3 Oct. 2000 2.1 0.66 5.0 0.10 DL06/DL08/DV11
    Euro-4 Oct. 2005 1.5 0.46 3.5 0.02 DL06 S/DL08 S/DV11 S
    Euro-5 Oct. 2008 1.5 0.46 2.0 0.02
    Emission Regulation (EU) - 2

    To meet EURO-4 / EURO-5 emission standard, use SCR or EGR + DPF system

    BAD

    Cooled
    EGR

    F/E

    DPF

    GOOD

    • SCR : Selective Catalytic Reduction


    • EGR : Exhaust Gas Recirculation
    • DPF : Diesel Particulate Filter
    Diesel engine combustion process

    Compression
    Compression stroke
    stroke
    (High
    (High air
    air temp.)
    temp.)
    1.1.Fuel
    Fuelinjection
    injection

    2.2.Fuel
    Fuelevaporate
    evaporateand
    andmix
    mixair
    Combustion
    Combustion stroke
    stroke Æ Ignition delay
    air
    Æ Ignition delay

    3.3.Combustion
    Combustion
    Exhaust Æ
    Exhaust stroke
    stroke ÆBeginning
    Beginningof
    ofcombustion
    combustion

    4.4.Diffusion
    Diffusioncombustion
    combustion
    Intake
    Intake stroke
    stroke
    Rate of heat release diagram
    Beginning of
    combustion (3)
    Temp.
    NOx
    Diffusion combustion (4) Last combustion

    PM (Smoke)

    Ignition
    delay (2)

    170 180 190 200 Crank Angle

    • To reduce NOx Combustion temperature ▼


    - Common rail system : Pilot injection, EGR
    • To reduce Smoke Fuel injection pressure ▲ (for perfect combustion)
    - Common rail system : Fuel atomization
    Mechanical Fuel Injection System

    Fuel injection is controlled


    by mechanical system.
    - Fuel injection pressure is limited
    (100 ~ 500 bar)
    - Fuel injection timing is limited
    (BTDC 20 ~ ATDC 10)
    - Fuel injection frequency is limited
    (Max. 2 times by 2 stage nozzle)
    - Fuel injection quantity is limited
    (Plunger capacity)

    Mechanical fuel injection system is insufficient


    for satisfying the severe emission regulations.
    This is the cut pages sample. Download all 149 page(s) at: ManualPlace.com

    Full download: http://manualplace.com/download/doosan-dl08-s-engine-service-training/


    Doosan Dl08 S Engine Service Training
    Common Rail System

    Fuel injection is controlled


    electronically
    - Fuel injection pressure can be increased
    (400 ~ 1,600 bar)
    - Fuel injection timing is more flexible

    - Fuel injection frequency is more flexible

    - Fuel injection quantity is more flexible

    Common rail system can overcome


    the several limitations of mechanical
    fuel injection system.

    Common Rail System is the better solution


    to meet the stronger emission regulations.

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