University of Wisconsin-Platteville 2006 SAE Clean Snowmobile Challenge Houghton, Michigan March 13 - 18
Outline Team Chassis Engine Cooling System Driveline Improvements Noise Reduction Emissions Reduction Cost Analysis Conclusion
The Team Located in the southwest corner of Wisconsin Mechanical Engineering is the largest major on campus
Chassis 2002 Polaris Pro-X 440 Fan High Performance Platform Before 2002 Polaris Pro-X 440 Fan High Performance Platform Light-Weight, durable chassis 672 lb. Wet After
The Engine Rotax Semi-Direct Injected 600cc 2-Stroke Electric Start Electronic Reverse V Force Reeds 2-4 HP in Mid-Range Power
Cooling System Front Track Heat Exchanger Belly Pan Radiator w/Fan Coolant Temps Reduced 30°-40°F
Driveline Improvements Hiperfax slides Teflon Inserts 700°F Melting Temp 96 Track Studs Improved Control Braking Acceleration
Noise Reduction Damping and absorption of under hood and tunnel noise Dynamat Xtreme® Vibration Damping Dynamat Hoodliner Sound Absorption
Noise Reduction Cont. Exhaust system Redesigned Automotive Muffler Perforated Tubing w/Glass Packing 4-6 dBa Reduction
Noise Reduction Cont. Drive Train Removal of Select Idler Wheels Addition of a Vespel® Chain Tensioner
Noise Reduction Cont.
Emissions Reduction 2 Stage 3-Way Catalyst 200 Cells per sq/in Ceramic Substrate Can withstand accelerations of 75g for the life of the vehicle Custom diffuser provides uniform distribution of O2
Emissions Reduction Cont. Secondary air injection Driven from magneto side Air delivery varies with engine RPM. Compact packaging
Stock 600 SDI 88.4 KW Platteville’s Clean Sled 82.5 KW
Platteville’s 2-Stroke (6th Place) 82.5 KW Second Place Finisher (4-stroke) 58.5 KW
Cost Analysis Technology Implementation Total Cost $ 919.31 Subsystem Subtotal Induction System $ - Fuel System $ 157.00 Engine $ 383.30 Exhaust After Treatment $ 171.51 Electronics $ 135.00 Noise Treatment $ 72.50 Technology Implementation Total Cost $ 919.31
Conclusion Environmentally friendly snowmobile Cost effective design Maintains performance attributes of a 2-stroke snowmobile
Sponsors Hiperfax Polaris Industries Millennium Technologies Camoplast Outlaw Composites Digatron TekVest Dynamat Castle HMK Hiperfax Camoplast NGK Sportech Association of Wisconsin Snowmobile Clubs Digatron New Trails Inc. VConverter Stud Boy Click’s Cycling Service Sign Worx
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