It is the declared goal of CLAAS to make a first-class contribution to efficient, eco-friendly agriculture which conserves resources. This includes the customer-focused implementation of the statutory environmental protection regulations as well as efficient compliance with the future emission limits for engines.

 

The greatest reduction in pollutants
of all time.

There is no doubt that the introduction of the "Tier 4 Interim / Stage IIIb" emission regulations is the most important step to date in the control of pollutant emissions. These regulations require a 90% reduction in particulate matter (PM) as well as a 50% cut in the nitrogen oxide (NOx) content. The "Tier 4 Final / Stage IV" regulations, which are to be implemented fully by 2015, call for a further reduction in PM and NOx emissions to almost zero.

Cleaning up emissions has a cost.
 

The reduction of pollutant emissions is a necessary move which makes good environmental sense. It is a fact that nitrogen oxides are generated through efficient combustion at high temperatures and under high pressure. As a result, the NOx reduction technologies used to date have always had a major disadvantage in that they not only increase fuel consumption but also reduce the operating performance. Today's solutions to these problems are SCR technology and exhaust-gas recirculation (EGR) with a particulate filter (DPF). Nevertheless, both involve additional hardware, costs and new maintenance cycles.

Further ahead:
CPS – CLAAS POWER SYSTEMS.

CLAAS has established CPS to bring together all the different domains of expertise necessary to develop the best possible drive system for work in the fields. We call this philosophy "Kraftintelligenz" [literally: "power intelligence"]. CPS comprises the full range of drive technology, from the engine and transmission to the rear axle and PTO. In establishing CPS, CLAAS has chosen not to limit its vision to engines and emission control processes but instead to go much further. This means that CLAAS has greater flexibility to act and can use both SCR technology and the EGR principle. Which system is used depends on the practical requirements of the application. Rather than placing the focus exclusively on the engine or the threshing or cutting mechanism, we seek to achieve an optimum match between all the components of a machine.


 

Development of emission limits Reduction of the principal emissions in five stages.

Comparison of European/US legislation

CPS - CLAAS POWER SYSTEMS