Volvo Trucks - Heavy Duty NGV Sector
Frank A. Bio Director of Sales Development Specialty Vehicles and Alternative Fuels North America 1 Volvo: “we are part of the problem, but we are part of the solution.” 1972 United Nations Conference on the Human Environment
Volvo Trucks NG Engine Ignition Designs
Spark Ignition Compression Ignition
Volvo Trucks
3 SI-NG Engine Ignition Design Features
Stoichiometric mixture Spark Ignition Air is drawn through an air clearer (SI) Natural gas is mixed with intake air Mixture is drawn into the cylinder Sparkplug ignites air/fuel mixture in cylinder
Volvo Trucks
4 SI-NG Engine Ignition Design Features
Single fuel Spark Ignition CNG or LNG fuel (SI) 100% NG usage Quiet operation 3 way catalytic converter aftertreatment
Fuel fumigated into intake air Reduced compression ratio Reduced DGE efficiency Reduced engine braking Higher heat rejection Spark-plug maintenance
Volvo Trucks
5 SI-NG Engine Ignition Design Features
3-way catalyst • Similar to catalyst on passenger cars • Packaged as muffler with vertical or horizontal mount • Weighs ~100 lbs.
Benefits: • Maintenance-Free • Reliable • No regeneration events • Easy to install in vehicle
Volvo Trucks
6 Volvo Truck Products
VNL VNM FL/FE
Cummins Westport Cummins Westport ISX12G ISL G Spark Ignition Spark Ignition
Volvo Trucks
7 HPDI-NG Engine Ignition Design Features
Diesel Engine – Compression Ignition High Pressure Direct Injection No Sparkplug (HPDI) Air is drawn through an air clearer Diesel fuel is injected into the cylinder Heat of compression ignites diesel Natural gas is injected into the cylinder Natural gas ignites and completes the combustion
Source: Westport
Volvo Trucks
8 HPDI-NG Engine Ignition Design Features
Diesel Exhaust Fluid (DEF) Tank
Selective Catalyst Reduction (SCR)
Diesel Particulate Filter
3-way catalyst
DEF Dosing Value
Volvo Trucks
9 HPDI-NG Engine Ignition Design Features
Multiple fuels/fluids – NG, Diesel, DEF High Pressure Direct Injection Requires all three to operate (HPDI) LNG only DPF and SCR Same sound level as diesel Requires ~ 5,000 psi fuel pressure Fuel directly injected into cylinder Same compression as diesel Same braking features as diesel Same DGE efficiency as diesel Power and torque
Source: Westport Same heat rejection as diesel 95% NG usage rate – 5% diesel
Volvo Trucks
10 Volvo Truck Products
VNL FM
Volvo D13-LNG HPDI Compression Ignition
Volvo Trucks
11 Market strategy
Start up in selected markets with selected customers. Build awareness and knowledge of natural gas concept.
Volvo Trucks Market strategy
Start up in selected markets with selected customers. Build awareness and knowledge of natural gas concept. Identify pilot projects Co-operation
Volvo Trucks
Early adopters
Gas companies Government and other Authorities
Volvo Trucks Market strategy
Start up in selected markets with selected customers. Build awareness and knowledge of natural gas concept. Identify pilot projects Co-operation Align with Natural Gas initiatives
Volvo Trucks Volvo Trucks - Heavy Duty NGV Sector
Frank A. Bio Director of Sales Development Specialty Vehicles and Alternative Fuels North America 15