Sistema Inyeccion Ddc_i
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Transcript of Sistema Inyeccion Ddc_i
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• Lima:• AV. Argentina 2020 - Lima • Teléfono : 336-8107• Fax : 336-8102• www.ddperu.com.pe
• Chimbote:• Av. Francisco Bolognesi 338• Teléfono : 341846• Fax : 327854
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SISTEMA DE INYECCION EN LOS MOTORES DETROIT DIESEL
• Bomba de Inyección (Bosch y Stanadyne)
• Inyector Unitario Mecánico (MUI)
• Inyector Unitario Electrónico (EUI)
• Inyector Unitario Electrónico Actuado Hidraulicamente (HEUI)
• Inyección de Riel común con control Electrónico
• Inyección con Bomba Unitaria Electrónica (EUP)
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MOTORES DETROIT DIESEL
NUMERO DE CILINDROSNUMERODE CICLOS
SERIE DEMOTOR
EN LINEA EN “ V”
SISTEMA DEINYECCION
53 2,3 y 471 3,4 y6 6,8,12,16 y 2492 6,8,12 y 16
2 Tiempos
149 8,12,16 y 20
MUI , EUI
V.M. 2,3,4 y 6 Bomba Inyecc.40 E 6 HEUI50 460 6
EUI
2000 8,12 y 16 EUP
4 Tiempos
4000 8,12 y 16 Riel común
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APLICACIONES DE LOS MOTORES DETROIT DIESEL
S E R I E SAPLICACIONVM 40E 50 60 53 71 92 149 2000 4000
AutomotrizX X X X X X
Industrial X X X X X X X X X X
Marino X X X X X X X X X
G.Electrogeno X X X X X X X X X X
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DESCRIPCIONES GENERALES
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REQUERIMIENTO DEL COMBUSTIBLE:
• Petróleo Diesel Nº 1 ó Nº 2.
• Número de cetano.
• Contenido de azufre en el combustible.
• Temperatura de combustible en la succión.
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FUNCIONES DEL COMBUSTIBLE:FUNCIONES DEL COMBUSTIBLE:
• Suministro de combustible limpio.
• Enfriar a los inyectores.
• Lubricar a los inyectores
• Mantener presurizado el sistema.
• Purgar el sistema de presencia de aire.
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FUNCIONES DURANTE LA OPERACION DEL INYECTOR:
• Sincronización.- Inicio y término de Inyección.
• Dosificación.- Entrega del combustible.
• Presurización: – Del sistema 60- 80 psi.– Apertura de la válvula tipo aguja 5,000 psi.– En el momento de la atomización 25,000 psi.
• Atomización.
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ESQUEMA DEL SISTEMA DE COMBUSTIBLE EN LOS INYECTORES MUI y EUI
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ESQUEMA DEL SISTEMA DE COMBUSTIBLE
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INYECTOR Unitario MECANICO (MUI)
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INYECTOR UNITARIO ELECTRONICO (EUI)
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Electronic Unit Injectors
Series 71/92 EUI Series 149 EUI
Series 50/60 EUISeries 4000 Spray Nozzle Series 2000 EUPSeries 53 EUI
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Series 50/60Injector
Animation
Fuel out
Fuel in
Voltage in
Solenoid
Plunger
PoppetValve
Needle Valve
Rocker Arm
Cam
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25ST0072-2 Rev. 04/4/00 24
Top Of Stroke
InjectorTip
FuelIn
FuelOut
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25ST0072-2 Rev. 04/4/00 25
Start Of Injection
InjectorTip
FuelIn
FuelOut
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25ST0072-2
Rev. 04/4/00 26
End Of Injection
InjectorTip
FuelIn
FuelOut
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25ST0072-2 Rev. 04/4/00 27
Injection Sequence
InjectorTip
FuelIn
FuelOut
InjectorTip
FuelIn
FuelOut
InjectorTip
FuelInFuelOut
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25ST0072-2
Rev. 04/4/00 28
Injector Calibration Codes
• DDEC II No Calibration Codes• DDEC III/ IV Calibration Codes From 00-99
Calibration Code
Part Number
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25ST0072-2
Rev. 04/4/00 29
Injector Cycle Terminology
IRT Injector Response Time - Length of Time (ms)required to close the Control Valve
PW Pulse Width - Degrees of Crankshaft Rotationwhen Fuel is Injected
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25ST0072-2
Rev. 04/4/00 30
Injector Response Times
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25ST0072-2
Rev. 04/4/00 31
Cylinder Cut-Out
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25ST0072-2
Rev. 04/4/00 32
Injection Cycle
BOE BOI EOE EOI
IRT
Time
PW
(Inflection Point)
BAT
Voltage0V
V_REG, 5V
Current0A
ClosedOpen
Control Valve Lift
Injection Rate
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25ST0072-2 Rev. 04/4/00 34
Sensor Operations
Operates on 5 Volts for All D.C. Sensors
.25 4.75
NormalOperating
Range
Low Voltage
0 5
High Voltage
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25ST0072-2
Rev. 04/4/00 13
Electronic Control Module
DDCresponsibility
Engine sensors,harness, &connectors
Injector harness &connectorsInjectors
OEM responsibility
Mandatory circuits Powerand Ground
J1922,J1939, Ignition
Throttle position sensorOptional circuits Manualfan on switch, Jake Brake,439 Ignition wire
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25ST0072-2
Rev. 04/4/00 92
Schematic Diagram DDEC III / IV
ElectronicControlModule(ECM)
ElectronicControlModule(ECM)
EEPROMEEPROM
+-BatteryBattery
StopEngine
CheckEngine
Cruise Control Vehicle Speed LimitingVehicle Speed Sensor
Oil / Fuel Pressure
Fuel / Oil / CoolantTemperature
Turbo Boost Pressure
Pressure Governor
Coolant Level
Timing Reference
Synch Reference
VSG Control
PWM Ports
Electronic FootPedal Assembly
Progressive Shift
DiagnosticRequest
Stop EngineOverride
Engine Rating / Cruise Power / Switch Power
Oil level/Fuel RestrictionCrankcase Pressure
EUIEUI
DDR Interface/ DDDL/ Reprogramming
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Series 60Sensor
Locations
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SISTEMA INYECTOR UNITARIO ELECTRONICO ACTUADO
HIDRAULICAMENTE (HEUI)
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Ala n Til le y Serie s 40E01/25/99 102
Series 40EInjection Control System
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Ala n Til le y Serie s 40E01/25/99 103
Series 40EInjection Control System Flow
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Ala n Til le y Serie s 40E01/ 25/99 104
Series 40EInjection Control Pressure Reservoir
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Ala n Til le y Serie s 40E01/25/99 105
Series 40EHigh Pressure Oil Pump
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Ala n Til le y Serie s 40E01/25/99 106
Series 40EFuel System Flow
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HEUI INJECTOROPERATION
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Ala n Til le y Serie s 40E01/25/99 108
Series 40EHEUI Fuel Injector
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Ala n Til le y Serie s 40E01/25/99 109
Series 40EHEUI Injector Schematic
Poppet Valve
High PressureOil Channel
IntensifierPiston
Plunger
Fuel Inlet
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Ala n Til le y Serie s 40E01/ 25/99 110
Series 40EFill Cycle
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Ala n Til le y Serie s 40E01/25/99 111
Series 40ESolenoid Energized
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Ala n Til le y Serie s 40E01/25/99 112
Series 40EInjection Delay
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Ala n Til le y Serie s 40E01/25/99 113
Series 40EMain Injection
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Ala n Til le y Series 40E01/25/99 114
Series 40EInjection Delay
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SISTEMA DE INYECCION DE RIEL COMUN CONTROLADA ELECTRONICAMENTE
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25ST0072-2 Rev. 04/4/00 19
Series 4000 Spray Nozzle
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Series 4000 Engine
• Four Stroke
• Direct Injection
• Water Cooled
• Single Stage Turbocharging
• Common Rail Fuel System
• Electronic Controls
• Metric Standard Design
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Series 4000 Fuel System
Common Rail Fuel System• Two Fuel Pumps In Series
• Engine Mounted Fuel Filters Between Fuel Pumps
• Full Electronic Control Of Individual Cylinders
• Complete Injection Timing Control
– Beginning Of Injection
– Injection Duration
– No Injector Cam Limitations
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Common Rail System Cons’t & Ind Engines
Injectors
DDEC IVECM
DDEC IVECM
Fuel Tank
Common Rail
FlowLimiter
Limiting SafetyValve 1350 Bar
LT
HighPressure
Pump
LPHP
6.8 Bar Fuel filter Housing
H. Pr Line
L. Pr LineFuel filters
Pro 40
.1 Bar
1.7 Bar
2.0 Bar
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High Pressure Fuel Pump
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HIGH PRESSURE ACCUMULATOR
CRANKSHAFT BEARING
CERAMIC BEARINGS
HIGH PRESSURE REGULATOR VALVE
COOLING AND LUBRICATING FUEL
ECCENTRIC
SHAFT SEALS
PISTON SPRING
PISTON CYLINDER
CRANKCASE FUEL INLET
Series 4000 High Pressure Fuel Pump
DRIVE GEARENGAGED
DRIVE GEARDISENGAGED
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Series 4000 High Pressure Pump
CRANKCASE
CYLINDER
SUPPLY FUEL
HIGH PRESSURE FUEL
PISTON
CAMSHAFT
FOLLOWER SPRING
CHECK VALVE OUTLET
CERAMIC BEARING
CHECK VALVE INLET
CENTER OF CRANK
CENTER OF CAM
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Fuel Lines & Pipes
Dual Wall Construction HighPressure Fuel Lines
Fuel Rail
Spill Line
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Common Rail Fuel System
Cylinder Block
Return Fuel Rail
Cylinder Head
High Pressure Fuel Rail
Fuel Return Line
Injector Injector Crab
Injector Crab Bolt
Flow Limiting Valve
Fuel Jumper Line
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Valve Open Valve ClosedRail
High PressureFuel
Valve
Spring
Fuel toInjector
Flow Limiting Valve
No Fuel toInjector
Fuel VolumeLimit
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SolenoidControl ValveControl Unit
Body
High Pressure Fuel
Intermediate ValveSleeve
Fuel Return
Needle ValveNutNozzle
Rod
Filter
Vent
Series 4000
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Series 4000Nozzle
AnimationCAM
Rocker ArmSolenoid
filter
FuelReturn
HighPressure
Fuel
NeedleValve
Nozzle
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Engine Mounted Fuel Pumps
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Fuel Limiting Safety Valve
1350 Bar
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Rail Pressure Sensor ( Current )
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• Injectors in Cylinders 5A to 8A and 5B to 8B ( Fan End of the Engine ) are Controlled by the Sender EDU
• Injectors in Cylinders A1 to A4 and B1 to B4 ( Flywheel End of the Engine ) are Controlled by the Receiver 1 EDU
16V ECM Injector Controls
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• Injectors in Cylinders A1 to A6 ( Left Side ) are Controlled by the Sender EDU
• Injectors in Cylinders B1 to B6 ( Right Side ) are Controlled by the Receiver 1 EDU
12V ECM Injector Controls
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BOMBA UNITARIA ELECTRONICA (EUP)
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Freiwa ld \s 2000 Commerc ial C raftR evise d 9nov98 137
Series 2000 Electronic Unit PumpProduced by Diesel Technology Company
Large Diameter HonedSteel Roller with Bronze Pin• Low Friction• Long Life
Forged & Hardened Body with Titanium NitrideCoated Plunger for Long Life
Calibration Coded
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Series 2000EUP
AnimationCAM
Rocker Arm
Solenoid
EUP
Cam
SpayNozzle
Fuel In
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Freiwa ld \s 2000 Commerc ial C raftR evise d 9nov98 134
Series 2000 Electronic Unit Pump& Injector Nozzle
FollowerAssembly
Plunger
Body
SolenoidValve
Solenoid
ValveSpring
ValveSpring Seat
ReturnSpring
Tip
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Fuel LineNozzle
EUP
Camshaft
ELECTRONIC UNIT PUMP (EUP)INJECTION SYSTEM
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Unit Pump Injection
• The 2000 Series Uses a new UnitPump Injection System Developedby Diesel Technology Corporationfor Mercedes Benz– The Unit Pump System uses a Cam-In-
Block Design with High PressurePumps Activated Directly by theCamshaft
– Other Cam-In-Block Engines use PushRods to Activate the Injectors
» Push Rods Do Not Offer the Stiffnessnecessary for the High Fuel InjectionPressures Needed for High Performance
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Series 2000DDEC Electronic Control System
Engine Inputs
Yacht Inputs
ElectronicUnit Pump & Nozzle
• Beginning & Duration of Injection
- Governing - Power - Speed - Startup - Noise - Emissions
DDR• Yacht Outputs
J1587ECMECM
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• Lima:• AV. Argentina 2020 - Lima
• Teléfono : 336-8107• Fax : 336-8102• WWW:ddperu.com.pe
• WWW:detroitdiesel.com
• Chimbote:• Av. Francisco Bolognesi 338• Teléfono : 341846
• Fax : 327854