Truck Engine

Emissions Compliance Information

ACERT™

Caterpillar introduced ACERT™ Technology to meet EPA '04 regulations for on-highway trucks.
ACERT™ Technology represents a series of evolutionary and incremental improvements developed by Caterpillar. For example:

• The fuel system allows for multiple injections each combustion cycle.
  Small amounts of fuel are injected at precise times to achieve the combined goals of fuel economy and lower emissions.
  
• An advanced air system provides more cool air in the combustion chamber. A wastegate turbocharger provides excellent low-end response.  In addition, crossflow cylinder heads provide a direct path of air to the engine. 

Caterpillar engineers worked with approximately 125 variables to find the optimum balance. There are more than 10 million possible combustion combinations. Those engineers were challenged by the highly intertwined relationship of (1) reduced emissions, (2) engine performance, (3) fuel efficiency and (4) engine durability. Those are not necessarily complementary objectives. Improving emissions, for example, can have an adverse effect on fuel efficiency. Their overriding goal is no different than the goal Caterpillar has had since its inception—to provide customers with the lowest owning and operating costs, and the lowest cost per unit of material moved. 

                                       Click on diagram below for a larger view.



Clean air is important to everyone. At Caterpillar, we're doing our part to not only develop clean diesel technology for new engines, but we're also developing a range of emissions solutions for engines already in use. Emissions reduction technology can extend the life of your equipment investments, minimize downtime, and achieve immediate and significant emissions reductions.

Providing the Best Product for Your Diesel Engine

The process is simple. Work with Carolina CAT, who in turn works with us to provide you with the best product, or combination of products, for your diesel engines. In most cases, you can meet local emissions requirements with your existing equipment.

               

Contact us for more information regarding emissions reduction technology.