Hatz to showcase 4H50TI (Tier 2/Stage II) engine at Intermat

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At Intermat 2015, the German engine manufacturer Motorenfabrik Hatz will present another version of the 2-litre 4H50TIC turbo engine that was introduced in 2014.

The new 4H50TI version was developed specifically for export to countries where only diesel fuel with high sulphur content is available. Alongside this, the 4H50TIC DPF, which was introduced in mid-2014, will be shown for the first time at a fair (Hall 5B booth L001).

In total, the 4-cylinder 2-litre industrial diesel engine 4H50TIC, equipped with the Bosch common-rail system, adds up to a total of three variants, which, depending on the exhaust after treatment, are now available worldwide.

In addition to the H-series, the already known 4L43C represents the 3- and 4-cylinder models of the L and M series, which are equipped with a DPF in order to meet the stringent requirements of the US EPA Tier 4F, the EU 97/68 stage IIIB, and the Oordnance on Air Pollution Control (OAPC) in Switzerland. The L and M series engines are therefore now the only remaining air-cooled engines in the 56kW class to meet the current emission regulations in the EU and USA.

The newly developed 4H50TIC, which has been manufactured since the beginning of 2014, will be presented in a variant without exhaust aftertreatment: the 4H50TI. By adapting existing components such as common rail, injectors and high-pressure pump and because of the elimination of sulphur sensitive components such as EGR and DOC, the engine can be operated with diesel fuel with a sulphur content of up to 5,000ppm, which is particularly important for many markets in Africa, South America and Asia.

The 4H50TI is compliant with the emissions legislation of the US EPA Tier 2 and EU 97/68 Stage II in the range up to 62kW output, as well as the EU 97/68 Stage IIIA in the range below 37kW. The latter applies in particular to the operation as a generator with engine speeds of 1,500 and 1,800 rpm.

Because of the elimination of aftertreatment, the 4H50TI can be operated with higher performance. The maximum output is 62kW and the maximum torque 265Nm. With just 158kg, the total weight of the 4H50TI is considerably less compared to the Tier 4/Stage IIIB version, the 4H50TIC. Because of the elimination of the EGR, the specific fuel consumption of 218g/kWh at the best point is slightly higher than the values of the basic engine. The 4H50TI will be available from autumn 2015.

The 4H50TIC DPF is equipped with a separable DPF and DOC and is compliant with the Clean Air Act (LRV) of the Federal Office for the Environment (FOEN) in Switzerland and registered in the corresponding particulate filter list.

The latest Hatz engine complies with the requirements of the OAPC and can be used in applications which are operated in Switzerland. Through the use of the particulate filter in conjunction with the certificate of the FOEN, the 4H50TIC DPF may also be used in areas where special demands for the exhaust after treatment apply, for example, underground use, tunnel construction and emission-sensitive metropolitan areas with their local requirements where often a DPF is mandatory.

As a special feature, the system is separable by means of two clamps and the filter element can be removed and cleaned manually. In contrast to many other separable systems, there is no new seal kit required when reinstalling the filter element. This leads to significantly reduced maintenance cost.

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Tom is editor of ivtinternational.com and iVT magazine. During his 20 year career in journalism Tom has worked for a diverse range of titles including Men's Health and Cosmopolitan. He also edits iVT's UKi Media & Events stablemate Traffic Technology International.

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