|Philosophy||Economic Responsibility||Social Responsibility||Environment Responsibility|
|Environment Management||Development of Alternative Fuel Vehicles||Reduction of Gas Emission||Increased Recyclability||Clean Production|
Reducing tailpipe emissions in urban areas, where there is a concentrated population, is an important task that needs to be tackled for the improvement of air quality. We strictly manages its vehicles´ tailpipe emissions, such as NOx and PM, around the world to conform to the relevant regional regulations, thereby improving air quality in urban areas. We are increasing investments for the development of new technologies to create vehicles with ultimately zero gas emissions.
HMC is strengthening engine technologies aimed at reducing gas emissions. The diesel engines of passenger cars have become equipped with the Catalyzed Particulate Filter (CPF). These engines feature an exhaust gas purifying level of over 90%. The filter helps cut exhaust emissions dramatically. In the case of the small and middle size I-4 gamma engine, which has a variety of environment-friendly qualities, the Warm-up Catalytic Converter + Under-floor Catalytic Converter (WCC+UCC) is placed at the back of the vehicle to shorten the catalyst activation time, thereby improving catalyst purifying efficiency.
We reduced gas emissions and improved fuel efficiency by employing the offset crankshaft to reduce friction of the piston and aluminum cylinder blocks to bring down the weight of the engine. To improve gas emissions from mid? to large?sized commercial vehicles, we developed three commercial diesel engines. The 3.9L F engine and 5.9L G engine employ the third generation common rail system with high injection pressures of 1,800 bar, thereby satisfying the gas emission regulations of the Euro?IV and achieving high performance and low fuel consumption.
The 10L H engine applies a 2,500 bar high-pressure unit injector for the variable control of the opening and injection pressure to realize optimal combustion conditions.
In addition, the multiple injection function has resulted in an improvement in noise and reduction in gas emissions. To cut down the level of particulate matters, HMC applies the Particulate Matters Catalyst (PMC) after-treatment device, which lasts as long as the engine and removes the need for recirculation and maintenance. In terms of NOx, the electronic Exhaust Gas Recirculation (EGR) cooler is applied to allow for purification based on a low combustion temperature. Moving forward, we will continue to develop new engines that are more environment?friendly to satisfy the gas emission regulations in North America and Europe.