Westport Innovations Inc. • Hydrogen Direct Injection

Applications: city work vehicles, small trucks, shuttle buses, and passenger cars.

BENEFITS:

Diesel like operation with high torque/power and fuel efficiency
Near zero emissions of toxic pollutants and greenhouse gases
Very low nitrogen oxide (NOx) emissions
Elimination of backfire and pre-ignition that limit power density

Technology Description
Westport has been developing proprietary injector technology that enables injection of hydrogen at high pressure directly into the combustion chamber of an internal combustion engine. Combustion of a lean mixture of hydrogen and air is initiated by a hot surface or spark ignition.

The approach completely eliminates backfiring, and enables much higher power density compared to current spark-ignited hydrogen engines that use external mixture formation. The H2DI engine can be optimized to achieve diesel like performance (high torque/power) and fuel efficiency. Emissions of nitrogen oxides (NOx) can be reduced to very low levels. Emissions of other toxic pollutants and greenhouse gases (carbon dioxide) are nearly zero.