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
12
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
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