The first three-cylinder models will go into series production in 2018. They will expand the Hatz H-series with powerful, efficient and compact engines in the power range up to 46 kW. Hatz presented the new models at Bauma.
Developed for compact applications
The new three-cylinder concept aims to be an ideal solution for today’s compact machine class up to 37 kilowatts. The goal is not only to house the engines in a compact installation space – the form and operation of the machines must remain unchanged. If exhaust emission aftertreatment becomes necessary, the little brother of the four-cylinder engine profits in particular from the compactness and the low raw emissions of the H-family.
Smaller space requirement, increased power
The automotive industry has been successfully downsizing engines for years. New engines inherited this concept as part of the H-family. As the first downsizing industrial engine with three cylinders the Hatz 3H50 with up to 2,800 revolutions per minute and just 1.5 litres will replace engines with displacements over 2.5 litres in the future. The torque and response behaviour are considerably superior to the present generation. At the same time the fuel consumption values are significantly reduced. This could be achieved, among other factors, thanks to the iHACS technology (intelligent Hatz Advanced Combustion Strategy) – its sophisticated combustion chamber geometry, Bosch injection technology, minimized friction and a charge air pressure of 1.7 bar ensure the right dimension of power in less than a fifth of a cubic metre only. In a word: right-sizing.
Compliant with emission standards
Following the family concepts, the various 3H50 models are also orientated on the currently valid and future emission standards.
The 133-kg lightweight Hatz 3H50TI doesn’t need any exhaust emission aftertreatment. Nevertheless, the engine achieves compliance with the EU Stage IIIA and U.S. EPA Tier 4 Interim standards in the power range of 19 to 37 kw. Avoiding sulphur-sensitive components, the use of diesel fuel with up to 5,000 ppm sulphur is no problem. Higher ambient temperatures in comparison to other 3H50 models are also possible. With a maximum torque of 200 Nm (at 1,600 to 2,200 rpm) and up to 46 kW the Hatz 3H50TI is a top performer.
The Hatz 3H50TIC was primarily developed for the U.S. market and Canada as well as some parts of Asia. In order to ensure compliance with the emission standards U.S. EPA Tier 4 Final and EU Stage IIIB, the proven combination of an external gas recirculation (EGR) and a diesel oxidation catalyst (DOC) reduces substances potentially harmful to the environment to the required level – without the need of a diesel particulate filter (DPF). Therefore the engine still achieves up to 42 kW and provides torque of 185 Nm. The additional components add approximately 20 kg of extra weight.
However, the anticipated requirements of the new EU Stage V emission levels cannot be fulfilled by diesel engines in this power class without diesel particulate filters. In conjunction with a DPF, the Hatz 3H50TICD is optimally prepared for future emission standards while performance is the same. Thereby the customized configuration of the Hatz diesel particulate filter system, optiHEAT, ensures an optimum length between two regeneration intervals.
Open Power Unit: the plug’n’play solution
The Hatz OPU concept is ideal for equipment manufacturers who have less capacity for specification of radiators, tubing and wiring of electronics, due to a tremendous ease of installation. The main application areas are primarily working machines such as hydraulic lifts, hydraulic power units, forestry machinery, drilling rigs and stationary applications such as pumps and generators. All H-series engines are also available as an OPU version. The customer only needs to connect the fuel supply, control box and battery.