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	2007 Dodge Ram Cummins ISB 6.7L engine

Southwest Research Institute (SwRI) is pleased to offer the 2007 Dodge Ram/Cummins ISB 6.7L on-highway engine for its 2007 Heavy-Duty Diesel Engine Benchmarking Program.

The engine was chassis-dynamometer certified by Cummins to the standards in 40 CFR 86.1818-08, which allows it to be counted as a 2010 certified engine per 40 CFR 86.1863-07. The emission control system for the ISB engine includes cooled EGR, a close-coupled diesel oxidation catalyst, a NO_x adsorber catalyst (NAC) and a diesel particulate filter (DPF).
 

Work to be Performed

The 2007 Cummins ISB Benchmarking Program includes:

• Vehicle testing

• Chassis dynamometer testing

• Engine dynamometer testing

• Engine component measurements

The following tasks will be performed during the program. Each of these tasks is detailed in the body of the proposal.

Vehicle and Chassis Dynamometer Testing

• Vehicle instrumentation to detect NO_x adsorber catalyst and DPF regeneration

• 4,000 mile on-highway mileage accumulation with 1 Hz data logging

• Ten back-to-back 0-60 mph runs to bracket restrictions and intercooler temperatures

• Five repetitions each of the following emissions and fuel economy test cycles:

  • FTP-75

  • Highway Fuel Economy

  • US-06

  • SC-03

Engine Dynamometer Testing

• Cold, hot, and composite federal heavy-duty transient emissions cycle

• ESC 13-mode emissions cycle

• Nonroad 8-mode emissions cycle

• Nonroad transient emissions cycle

• Hot motoring friction curve (complete engine)

• 200-point steady-state map (~150 RPM, 10% load steps)

• DPF/NAC evaluation test

• Coolant temperature derate test

• Altitude derate test

• Crankshaft torsional test

• 0 to 100% load snap throttle transient response tests at three ESC speeds

Component Measurements

• Engine teardown, component dimensions and mass measurements

• Cylinder head flow bench testing

• Component photography

Optional Emissions Speciation Data

To better understand the functionality of the NAC, Fourier-transform infrared (FTIR) and mass spectrometer (MS) instruments will be installed to provide detailed compositional data for the exhaust gases entering and exiting the NAC. FTIR and MS data will be taken during the DPF/NAC evaluation tests, heavy-duty transient cycle, nonroad transient cycle, 13-mode ESC, 8-mode nonroad cycle, and 200-point steady-state map. The following compounds will be measured:

• FTIRs before and after the NAC: CO, CO₂, NO, NO₂, N₂O, SO₂, methane, ethyne, ethene, ethane, propene, propane, n-pentane, iso-octane, benzene, 1-3-butadiene, iso-butylene, formaldehyde, acetaldehyde, ammonia, H₂S

• MS after NAC: NO, NO₂, SO₂, H₂S, COS

Deliverables

• Logged mileage accumulation data (1 Hz) in Excel format

• Logged chassis dynamometer cycle data (1 Hz) in Excel format

• Logged data during heavy-duty transient cycle (1 Hz) in Excel format

• Logged data during nonroad transient cycle (1 Hz) in Excel format

• 13-mode ESC and 8-mode nonroad modal data in Excel format

• Logged snap-throttle response data (10 Hz) in Excel format

• Friction curve data in Excel format

• Steady-state mapping data in Excel spreadsheets

• PowerPoint summary presentation of performance and emissions test results

• Performance and emissions test report in PDF format

• DPF evaluation report in PDF format

• NAC evaluation report in PDF format

• Teardown and technical assessment report in PDF format (includes flow bench report)

• High-resolution digital photographs from engine teardown in JPEG format

• CDs containing the reports, data, and photos

• Optional: FTIR & MS exhaust speciation data for the NO_x Adsorber Catalyst

Program Schedule

Dynamometer testing is scheduled to be completed during February 2008. Data will be delivered via secure web site after each test is complete. All reports are scheduled to be delivered by May 2008.

Pricing

• Base Program–$109,500

• Optional FTIR & Mass Spectrometer Data–$30,000

For more information about the 2007 Dodge Ram/Cummins ISB 6.7L benchmarking program capabilities at SwRI or how you can contract with SwRI, please contact Michael Ross, Program Manager, mross@swri.org or (210) 522-2690. The fax number is (210) 522-3950.

| Design and Development | Engine, Emissions & Vehicle Research Division | SwRI Home |

Southwest Research Institute® (SwRI®), headquartered in San Antonio, Texas, is a multidisciplinary, independent, nonprofit, applied engineering and physical sciences research and development organization with 11 technical divisions.

July 03, 2008