Sistema Inyeccion Ddc_i

• Lima:• AV. Argentina 2020 - Lima • Teléfono : 336-8107• Fax : 336-8102• www.ddperu.com.pe

• Chimbote:• Av. Francisco Bolognesi 338• Teléfono : 341846• Fax : 327854

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)

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

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

DESCRIPCIONES GENERALES

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.

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.

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.

ESQUEMA DEL SISTEMA DE COMBUSTIBLE EN LOS INYECTORES MUI y EUI

ESQUEMA DEL SISTEMA DE COMBUSTIBLE

INYECTOR Unitario MECANICO (MUI)

INYECTOR UNITARIO ELECTRONICO (EUI)

Electronic Unit Injectors

Series 71/92 EUI Series 149 EUI

Series 50/60 EUISeries 4000 Spray Nozzle Series 2000 EUPSeries 53 EUI

Series 50/60Injector

Animation

Fuel out

Fuel in

Voltage in

Solenoid

Plunger

PoppetValve

Needle Valve

Rocker Arm

Cam

25ST0072-2 Rev. 04/4/00 24

Top Of Stroke

InjectorTip

FuelIn

FuelOut

25ST0072-2 Rev. 04/4/00 25

Start Of Injection

InjectorTip

FuelIn

FuelOut

25ST0072-2

Rev. 04/4/00 26

End Of Injection

InjectorTip

FuelIn

FuelOut

25ST0072-2 Rev. 04/4/00 27

Injection Sequence

InjectorTip

FuelIn

FuelOut

InjectorTip

FuelIn

FuelOut

InjectorTip

FuelInFuelOut

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

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

25ST0072-2

Rev. 04/4/00 30

Injector Response Times

25ST0072-2

Rev. 04/4/00 31

Cylinder Cut-Out

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

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

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

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

Series 60Sensor

Locations

SISTEMA INYECTOR UNITARIO ELECTRONICO ACTUADO

HIDRAULICAMENTE (HEUI)

Ala n Til le y Serie s 40E01/25/99 102

Series 40EInjection Control System


Series 40EInjection Control System Flow

Ala n Til le y Serie s 40E01/ 25/99 104

Series 40EInjection Control Pressure Reservoir


Series 40EHigh Pressure Oil Pump


Series 40EFuel System Flow

HEUI INJECTOROPERATION


Series 40EHEUI Fuel Injector


Series 40EHEUI Injector Schematic

Poppet Valve

High PressureOil Channel

IntensifierPiston

Plunger

Fuel Inlet

Ala n Til le y Serie s 40E01/ 25/99 110

Series 40EFill Cycle


Series 40ESolenoid Energized


Series 40EInjection Delay


Series 40EMain Injection

Ala n Til le y Series 40E01/25/99 114

Series 40EInjection Delay

SISTEMA DE INYECCION DE RIEL COMUN CONTROLADA ELECTRONICAMENTE

25ST0072-2 Rev. 04/4/00 19

Series 4000 Spray Nozzle

Series 4000 Engine

• Four Stroke

• Direct Injection

• Water Cooled

• Single Stage Turbocharging

• Common Rail Fuel System

• Electronic Controls

• Metric Standard Design

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

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

High Pressure Fuel Pump

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

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

Fuel Lines & Pipes

Dual Wall Construction HighPressure Fuel Lines

Fuel Rail

Spill Line

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

Valve Open Valve ClosedRail

High PressureFuel

Valve

Spring

Fuel toInjector

Flow Limiting Valve

No Fuel toInjector

Fuel VolumeLimit

SolenoidControl ValveControl Unit

Body

High Pressure Fuel

Intermediate ValveSleeve

Fuel Return

Needle ValveNutNozzle

Rod

Filter

Vent

Series 4000

Series 4000Nozzle

AnimationCAM

Rocker ArmSolenoid

filter

FuelReturn

HighPressure

Fuel

NeedleValve

Nozzle

Engine Mounted Fuel Pumps

Fuel Limiting Safety Valve

1350 Bar

Rail Pressure Sensor ( Current )

• 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

• 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

BOMBA UNITARIA ELECTRONICA (EUP)

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

Series 2000EUP

AnimationCAM

Rocker Arm

Solenoid

EUP

Cam

SpayNozzle

Fuel In

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

Freiwa ld\s 2000 Commerc ial C raftR evise d 9nov98 133

Fuel LineNozzle

EUP

Camshaft

ELECTRONIC UNIT PUMP (EUP)INJECTION SYSTEM


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


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

• 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

Sistema Inyeccion Ddc_i

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