Abstract
To meet exhaust emissions regulations that becomes severe worldwide every year, Caterpillar Inc. has developed the ACERT®technology that decreased exhaust gas of the diesel engine. ACERT®, Advanced Combustion Emission Reduction Technology, that is concentration of technology that Caterpillar has cultivated in long history of engine development for past 75 years. ACERT® Technology is based on the theory “If all the processes of combustion can be controlled efficiently and best, exhaust gas can be suppressed to the minimum” and control four key elements (Air systems, Fuel systems, Electronics, and Aftertreatment ) in the best. Cat engine with ACERT® Technology is simple and reliable, and it is already installed in many Caterpillar construction machines and Highway truck in North America.
