Skip to main content

The engine company. DEUTZ®


Emission guidelines are, to a certain extent, the impulse generator in engine development. In Europe, EU Stage currently applies the strictest regulations for the off-highway sector. In order to meet this requirement, mobile machines such as excavators, tractors, and forklifts require highly developed drive systems with state-of-theart exhaust gas after-treatment in the EU. The use of so-called SCR systems and diesel particulate filters (DPF) requires in-depth knowledge of drive systems and the respective applications.

The traditional Cologne-based company was the first manufacturer in the world to meet the EU Stage V requirements. Therefore DEUTZ is already prepared for progressive emission regulations in international markets. In South Korea or Japan, for example, emissions legislation can be expected to be aligned with EU Stage V. In India, Stage V will be introduced on April 1, 2024 and China will introduce the China IV Non-Road Emission Legislation. In particular, the nitrogen oxide and particulate mass limit values will be significantly reduced. The introduction of an additional limit value for the number of particles also requires the use of a diesel particulate filter (DPF).

Reliable operation of a DPF in the overall system requires sound integration expertise and an understanding of the respective application. Depending on the device in which the engine is used, completely different load profiles form the basis. For example, a tractor typically operates at high full load operation, which is relatively uncritical for DPF applications since the exhaust gas temperature is high enough to allow continuous regeneration of the filter. By contrast, the load profile of a forklift truck, for example, is much more demanding. It is often only operated at low speeds at shorter intervals or with high idling ratios. As a result, the exhaust gas temperature usually remains below 250 °C (482 °F), which is why the soot particles collected in the DPF do not burn. Intelligent heat management is required to solve this problem. DEUTZ has therefore developed a so-called “Heat Mode” to increase the exhaust gas temperature in a targeted manner, which ensures safe machine operation. DEUTZ already has extensive experience in the field of exhaust gas after- treatment in series production. DEUTZ customers worldwide now benefit from it when they introduce new technologies.