UFI Filters is helping to boost performance but cut emissions on one of the most popular truck engines. CVW goes under the bonnet to have a look.
Oil filtration specialists UFI Filters is helping Mercedes OM471 heavy duty engine platform to clean up its act with its recently-introduced oil filtration module. The unit features a two-stage thermostatic valve, a pressure control valve, a by-pass valve and a temperature sensor. These elements, say UFI, allow advanced oil volume management within the circuit, even for low-viscosity oils. The improved management of the lubrication circuit reduces friction inside the engine, improving performance and reducing fuel consumption – contributing to lower pollutant emissions in the process. Media scrutiny A further technological feature offered by the complete UFI system is the advanced thermal management of the engine thanks to a two-stage thermostatic valve, which prevents temperature peaks. Depending on the oil temperature and the operating phase (steady state or warm-up), the two-stage thermostatic valve manages the oil volume within the lubrication circuit.
The filter cartridge – produced with infrared welding (without any use of glue) – is manufactured using the company’s hydrophobic FormulaUFI.Cell media. Due to the use of this particular media, the filter can maintain its performance characteristics even in the presence of water in the oil. This results in a high standard of filtration over time. Compared to screw-on filters, replacing the element alone allows a significant reduction in metal waste; the patented coupling also guarantees safer and cleaner maintenance operations for the operator. The improved management of the lubrication circuit and the characteristics of the filter material are claimed to offer high filter reliability, with extended service intervals of up to 150,000 km. Thanks to the structure, it has a high resistance on oil circuits subjected to pressures of up to 12 bar, such as those of heavy-duty vehicle engines. Performing under pressure UFI Filters’ engineers, in cooperation with Mercedes, have paid particular attention to the design of the individual components. The cartridge not only safeguards the engine components, but also guarantees best performance, helping to keep circuit pressure drop levels low, even under the harshest engine operating conditions.
UFI Filters’ complete system also features a high degree of modularity, with the possibility of assembling different types of water pumps, both electrically and mechanically regulated. This enables the system to adapt to the needs of different types of applications, for different truck models.