2.8L L4 Duramax Turbo Diesel

Transcription

1 2.8L L4 Duramax Turbo Diesel

2 ENGINE CONTENT Displacement (cu. in. / cc): 169 / 2776 Bore & stroke (in. / mm): 37.0 / 94 x 39.4 / 100 Valve configuration: Dual overhead camshafts Ignition system: Direct injection common rail Fuel: Diesel / B20 diesel compatible Compression ratio: 16.5:1 Horsepower (hp / rpm): 181 / 3400 (estimate) Torque (lb.-ft. / rpm): 369 / 2000 (estimate) Emission controls: Close-coupled diesel oxidation catalyst Selective catalytic reduction with urea injection Diesel particulate filter Positive crankcase ventilation Cooled Exhaust Gas Recirculation Emissions standard: Tier 2 BIN 5 / ULEV 125 MATERIALS Block: Cylinder head: Intake manifold: Exhaust manifold: Crankshaft: Camshaft: Connecting rods: Grey cast-iron Aluminum Composite Cast-iron Forged steel Powdered Metal / sintered steel lobes Forged steel

3 ENGINE CONTENT Additional features: Composite cam cover Poly-V accessory drive belt 29,000 PSI solenoid fuel injectors Water-cooled turbocharger with variable-geometry nozzle Oil level protection switch Ceramic glow plugs EGR cooling system with integrated bypass GM Engineered Controls hardware and software Oil filter housing with integrated oil cooler Dexos 2 engine oil Enhanced NVH acoustic package Pressure-regulating valve for active return fuel heating Air mass controlled in closed loop via electronic throttle valve Engine-mounted electro-viscous cooling fan Balance shaft unit with integrated oil pump Positive crankcase ventilation heater Block-mounted 110V coolant heater High-performance/low-temperature timing belt

4 TECHNOLOGY SET 29,000 PSI (200 MPa) common rail diesel fuel-injection system Water-cooled variable geometry turbocharger with integrated exhaust braking capabilities Engine mounted electro-viscous cooling fan B20 biodiesel compatible Longitudinally central Balance Shaft with integrated oil pump Ceramic Glow Plugs GM engineered engine control unit, hardware, software, and calibration

5 TURBO EXHAUST BRAKING Turbine vanes are utilized to generate significant exhaust system backpressure Combined with transmission grade braking, it allows for virtually effortless downhill driving and towing, with seamless and quiet operation Rather than relying on the vehicle s brakes to slow the vehicle down or maintain a safe speed, the exhaust brake system does it for you Turbine control to automatically adjust for grade and vehicle load

6 Urea Inj HC Inj * Estimated, certification pending (Nox + NMHC) CLEAN DIESEL Cleanest diesel truck engine ever produced; over 20% cleaner * than the Ram EcoDiesel truck It meets some of the toughest U.S. emission standards with proven diesel exhaust aftertreatment processes Cooled EGR and SCR for NOx reduction, close-coupled DOC for hydrocarbon control, dedicated fuel injector with combined DOC-DPF for efficient soot filtering/burning B20 biodiesel compatible for reduced dependence on petroleum Engine Compartment DOC SCR D O C CDPF Exhaust Cooler

7 TRUE TRUCK ENGINE DURABILITY Built specifically for trucks, the 2.8L Duramax has successfully withstood the same grueling validation tests as the legendary 6.6L heavy-duty Duramax Over 35,000 dynamometer hours logged for development, fatigue testing, and thermal cycling Used internationally for years, the 2.8L Duramax is known for its outstanding quality, reliability, and durability Featuring a Forged Steel Crankshaft w/fillet rolled radii, Forged Steel Connecting Rods, cast iron Engine Block, cast iron Balance Shaft housing, piston-cooled Oil Jets, and a water-cooled Variable Geometry Turbocharger

8 EXTREME WEATHER/ENVIRONMENTAL ROBUSTNESS Engine robustness to handle the most extreme North American environments Engine mounted electro-viscous cooling fan and efficient Charge air cooling system to handle extreme hot driving conditions as in Death Valley, California Turbo matching optimization for improved performance at altitude Cold package enhancements to effectively handle the very cold conditions in northern U.S. and Canada Ceramic Glow Plugs, higher output Starter Motor, Block Heater, and charging system updates for cold starting down to -40 F PCV Heater and Active Fuel Return Heating for continued operation

9 NVH ENHANCEMENTS Top of engine acoustic treatment, damped steel timing drive cover and lower oil pan, and isolated heat shields yield over 50% reduction in engine noise from its predecessor Longitudinally central Balance Shafts for improved 2 nd order vibration and shaking First in-segment for Hydraulic Engine Motor Mounts Centrifugal Pendulum Vibration Absorber torque converter to smooth out engine torsional vibrations for all driving conditions

10 SAE CERTIFIED HORSEPOWER AND TORQUE

11 FUEL ECONOMY Available Later in 2015