Caterpillar® C7Caterpillar® C7with

ACERTTM TECHNOLOGYwith

ACERTTM TECHNOLOGY

2

Caterpillar® C7Caterpillar® C7

2006 2007

7.2L In-line 6 Cylinder520 – 860 lb-ft Torque @ 1440 rpm

190-300 hp @ 2200 rpm Truck and Bus300-350 hp @ 2400 rpm RV and Fire Truck1,425 lbs.

190-350 hp @2500 rpm1,295 lbs.

3

Caterpillar® C7Caterpillar® C7

Common Rail Fuel SystemVariable Nozzle TurboClean Gas Induction Diesel Particulate Filter

2007 Enhancements

4 MAF Sensor

VariableNozzleTurbo

CGI Cooler

Cat RegenerationSystem

Closed Crankcase Ventilation

ADEM IV ECM

CGI Valve

CGI ValveActuator

CRS Air SupplyControl

2007 C7

5

A4 ECM

Cat Air Compressor

High pressure fuel pump Common Rail

Fuel System

2007 C7

CylinderHead

Modified for new fuel system

6

Common Rail Fuel SystemCommon Rail Fuel SystemFacilitates compliance with 2007 emissions regulationsClean combustion technology Optimizes performanceIncreases fuel economy by up to 4%

7

2007 AftertreatmentCooled Exhaust Gas Recirculation (CEGR)

PM, NOx,

CO2, HC

PM, NOx,

CO2, HC

Diesel Oxidation Catalyst Particulate Trap

PM, NOx, CO2, HC

Diesel Particulate Filter/MufflerEGR

NOx , H2O, CO2

PM, NOx,

CO2, HC

PM, NOx,

CO2, HC

Clean Gas Induction (CGI)Clean Gas Induction (CGI)NOx , H2O, CO2

NOx , H2O, CO2

NOx , H2O, CO2

NOx , H2O, CO2

Particulate Trap

PM, NOx, CO2, HC

Diesel Particulate Filter/Muffler

CGI

PM, NOx,

CO2, HC

PM, NOx,

CO2, HC

8

DPF Physical Data

• Weight – Approx 120-135 Lbs

• Provides Sound Attenuation• Diameter range 11-15 inches• Manufactured by Cat• Serviced by Cat

9

Soot CollectsAlong the

Inlet Walls

Particulate Matter or Soot

CleanExhaust Out(CO2, H2O)

Filter Substrate

Cordierite

Cells Fill Up

Wall Flow Filter TechnologyWall Flow Filter Technology

10

Active Regeneration OptionsActive Regeneration Options

Auxiliary Heater

Increases exhaust temperature at the engine to promote regeneration

Cat Regeneration System

11

“Active” Regeneration:Filter is Heated by Auxiliary Means

DPF

Regenerate under all conditionsOptimal fuel economy

Self-Regenerating DPF FilterSelf-Regenerating DPF Filter

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System Design for Engine Thermal Management

System Design for Engine Thermal Management

100ºC 200ºC 300ºC 400ºC 500ºC 600ºC(212ºF) (392ºF) (572ºF) (752ºF) (932ºF) (1112ºF)

ACERTOxidationCatalyst

Not Too Hot,Not Too Cold

2007After-

Treatment

Temperature Required for Self - Regeneration

13

Minimum first cleaning required at 150,000 milesOn- or off-vehicle cleaning by dealers or customers

Cleaning Out Residual Ash is a Regular Maintenance Procedure

DPF CleaningDPF Cleaning

14

Cat Process Should be About Half That Time

Target Service Time is 2 Hours of Shop LaborTarget Service Time is 2 Hours of Shop Labor

15

DPF Ash Service ToolDPF Ash Service Tool

RemovableInlet & Outlet

Pipe

RemovableOutlet Section &

Inlet Pipe

Connects to DPF by 3” & 5” hose

Marmon Flange Connector

16

Cleaner Assembly On -Chassis

Cleaner Assembly On -Chassis

Pressure line connected to filter Outlet

Vacuum line connected to filter Inlet

17

Reduces BTUs By 1% Resulting in Fuel Economy Loss Of 1%

AvailabilityUltra Low Diesel FuelUltra Low Diesel Fuel

At refineries by June 2006At terminals by July 15, 2006At retails outlets October 15, 2006

For Your Businessand Continued Support

For Your Businessand Continued Support