Cummins ISB Test Development Task Force Cummins Surveillance Panel Mark Sarlo, SwRI January 11,...
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Transcript of Cummins ISB Test Development Task Force Cummins Surveillance Panel Mark Sarlo, SwRI January 11,...
![Page 1: Cummins ISB Test Development Task Force Cummins Surveillance Panel Mark Sarlo, SwRI January 11, 2005.](https://reader033.fdocuments.net/reader033/viewer/2022061614/56649dda5503460f94acfe09/html5/thumbnails/1.jpg)
Cummins ISBTest Development Task Force
Cummins Surveillance Panel
Mark Sarlo, SwRI
January 11, 2005
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ISB Test Development Progress
• Labs and Engines
• Procedure
• Special Parts and Cam Measurement
• Modifications to Hardware and or Procedure
• Move Forward to Matrix
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ISB Engine
• 5.9L ISB MY04, CPL 8123. This engine is certified at
2.0 g NOx/bhp-hr
• Fuel system Common Rail
• CPL 8123
• Low idle 800 RPM (ECM 750 RPM)
• High idle 3,000 RPM
• Rated 300 hp @ 2,600 RPM
• Torque peak 600 lbf-ft @ 1,600 RPM
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ISB Engines at Labs
• SwRI @ San Antonio, Completed 830-2 and 1004-3
• PE @ San Antonio, Completed two 830-2 and one 1004-3
• Lubrizol @ Wickliffe, Completed 1004-3
• ExxonMobil @ Paulsboro, Preparing to Run Reference Oil
• Valvoline, Ashland, May Run Older Engine Configuration
• Afton, Richmond, Waiting on Engine, Waiting on Cell Space
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ISB Procedure Highlights
• 350 Total Hours, (100-hr Stage A, 250-hr Cyclic Stage B)• First 100 Hours at 1,600 RPM & 20 kg/hr, 107 kPa abs EBP, 110 C
Oil Temp, 99 C Coolant Out, 68 C Int Man• Retard Timing 14-16° to Generate Soot (use NGET)• Soot Window of 3.25 +/- 0.25% at 100 Hours• Charge Engine with 14.5kg Oil Total (Some into Filter)• Two Flushes• External Oil Adder System, External Tube & ShellOil Cooler• Oil Sample @ 25, 50, 75, & 100 Hr, 1,000 g Forced Add• Return Timing to “Native Timing” for Final 250 hr Stage B• Run Multi-step Valvetrain Wear Cycle for next 250 hr• Oil Sample @ 150, 200, 250, 300, & 350 hr with No Additional Oil
Adds
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ISB Procedure Highlights
• Coolant Out Temperature 99 Degrees C
• Engine Oil Sump Temperature 110 Degrees C
• Fuel Temperature 40 Degrees C
• Intake Manifold Air Temperature 68 Degrees C, 114mm
• Estimate 8,000 L Fuel per Test
• Use Cummins Complete PG Coolant
• 107 kPa Absolute Exhaust Back Pressure Set in Stage A, Open for Stage B
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Cummins ISB Stages A & B
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ISB Test Numbering
• 64-001-57216596-0000 (Example)
• First Number is Lab’s Cell Number (64)
• Second Number is Run Number for that Cell (001)
• Third Number is Cummins Engine SN (57216596)
• Fourth and Final Number is Hours on Engine After 80-
hour Break-in Procedure
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Cummins ISB, Typical Soot
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Cummins ISB Soot, Stage A
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Cummins ISB Soot, Stage B
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Cummins ISB Cyclic Stage B
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Cummins ISB Stage B Cycle
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Special Parts
• CPD to Maintain and Etch Critical Parts
• Parts to be Etched in Sets and Sequentially, 1 Through 12
• CPD to Maintain Inventory of Three New Engines
• New Engine Will Require 80 hr Break-in
• Engine Life Dependent on Lubricants Evaluated
• Estimate Up-to Ten Tests per Engine Block
• Points of Wear Include Camshaft & Tappet Bores in Block
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Camshaft Wear Measurements
• Camshaft Lobes are Flat (Not Tapered)
• Most Wear Occurs on Ramps, Not Nose
• Use Adcole Gage to Measure
• Cam Supplier to Measure
• Investigating Alternate Measurement
• Investigate Cam Shipping to Assure Safety
• Matrix-Related Cams Shipped to Warren
• Candidate Cams Directly to Cam Supplier
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Camshaft Measurements
• Batch of Cams Pre-measured by Adcole
• CPD Maintains BOT Data
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Special Parts Measurements for Matrix?
• Crosshead Weightloss (mg)
• Tappet Weightloss (mg) AFTER EnSolve® Cleaning
• Tappet Heightloss (mm)
• Tappet Stem OD wear (mm)
• Tappet Slider Surface Profile Wear in Two Planes @ 90°
• Valve Adjusting Screw Weightloss (mg)
• Valve Rocker Lever Socket Weightloss (mg)
• Valve Rocker Shaft Weightloss (mg)
• Valve Push Rod Weighloss (mg)
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Special Parts Measurements for Matrix?
• Camshaft Lobe Wear, Conventional (mm)
• Camshaft Lobe Wear, Adcole Method
• Camshaft Bearing Journal Wear, Conventional (mm)
• Camshaft Bearing Journal Wear, Adcole Method
• Tappet Bore Wear in Parent Block (mm)
• Cam Bore Wear in Parent Block (mm)
• Valve Lash Change (mm)
• Sludge Rating for Rocker Cover with and without Baffle
• Sludge Rating for Oil Pan
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Tappet Face Wear, Center and Maximum
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Tappet Face Wear, Center and Maximum
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Tappet Face Wear, Center and Maximum
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New Generation Engineering Tool (NGET)®
• Latest Version not as User-Friendly While Logging
• Parameters to Measure Sent Out as ISBParameter.lay File
• NGET® is Used to Adjust Timing for First 100 hr
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Summary
• Warren to Supply Updated Procedure in ASTM Format
• Discrimination Proven with Mini-Matrix?
• Matrix Design
• Industry Participation, Stand Installation, Timing????
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Mini-Matrix Data
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Mini-Matrix Data
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Mini-Matrix Data
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Mini-Matrix Data
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Mini-Matrix Data
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Mini-Matrix Data
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Mini-Matrix Data
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Cummins ISB Pan Fitting Locations for External Oil Adder System