The prime pollutants of diesel engines are particulate matter（PM) and NOx. Each government in Japan, the United States, and Europe has implemented emissions standards for construction machinery and other equipment. Tier 3 requires a 40% reduction of NOx from Tier 2 level. Lowering combustion temperatures reduces NOx emissions but increases PM emission. So, we set out to develop a diesel engine that slashes both PM and NOx emissions while improving fuel consumption and power. This effort led us to develop ecot3 technology.
Over the next few years, Tier 4 emissions standards will be enforced, which require PM and NOx emissions to be almost zero. Our engine development work reflects those requirements. But we aim to do more than just clear the standards. Our mission is also to deliver better value.
This system reduces PM, NOx, and other emissions while increasing power. It employs a common rail and a computer to optimize fuel injection volumes and timing. The system delivers almost complete combustion because it enables multi-stage fuel injection.(* High Pressure Common Rail fuel injection system)
Electronic controls swiftly process signals from sensors installed around a vehicle to provide complete control. This system lowers environmental loads while optimizing engine performance under all conditions.