As one of the core Fuel Pump suppliers in the global mid-range automotive aftermarket, KEMSO’s mainstream gasoline pump product lines (such as the KLF-100 series) show standard differentiation in configuration. Among the statistics of 400 sets of samples on the e-commerce platform, approximately 85% of the KEMSO original factory replacement type oil pump sets come with a primary filter screen. The mesh density of this screen is within the range of 150-200 microns (equivalent to 300-400 mesh stainless steel mesh), which can intercept 90% of the oil tank impurities larger than 180 microns. Meet the basic protection requirements of ordinary family cars every 80,000 kilometers of maintenance cycle. However, the comparative test data from Bosch Motorsport shows that when dealing with colloidal precipitates in ethanol gasoline (with an average particle size of only 30-50 microns), the pass rate of such primary filters is as high as 55%, significantly higher than the 8% leakage rate of precision filters. The 2023 report of the North American Automobile Maintenance Association (ASRA) indicates that the failure rate of basic filter configurations in areas where ethanol fuel is widespread (such as Brazil where the E100 usage rate reaches 92%) has increased by 37%.
For high-performance application scenarios, the KEMSO Turbo Performance series oil pumps usually adopt a modular design. Specific analysis of the model such as KHP-200 data sheet: The standard configuration of the product includes the pump core and the pressure regulating valve, but the filtration system requires additional selection of precision components (code KF-102B). This optional accessory adopts a 40-micron multi-layer sintered stainless steel structure. On the premise of reducing the flow loss to 3.5%, it achieves an impurity capture rate of 99.2% (in accordance with the ISO 16889 multi-pass test standard), and is particularly suitable for the high flow requirement of 720 LPH of turbocharged engines at a boost value of 2.0 Bar. A typical industry case can be seen at the 2022 SEMA Modification show. The Honda K20C1 engine (with an output of 550 horsepower) failed to install the optional filter, resulting in a wear deviation of the plunger pump reaching 0.15mm, exceeding the permitted limit. The single repair cost exceeded 2,000 US dollars.
In the field of diesel systems, the KEMSO configuration strategy is more complex. Its heavy-duty diesel pumps (such as KDD-300) are 100% integrated with a pre-oil-water separator. The separation efficiency reaches 95% in accordance with the SAE J1488 standard (when dealing with fuel with a water content of 0.15%), but the main filter is still an independent component. The German TUV certification test shows that the failure to replace the precision filter element synchronously will lead to a 300% increase in the wear rate of the fuel injector and reduce the average lifespan from 160,000 kilometers to 40,000 kilometers. A notable economic comparison: Purchasing a KEMSO diesel filter element alone is approximately 80 euros, while the fuel injector kit costs over 1,200 euros. The 2021 European Commercial Fleet Management Study shows that fleets that precisely implement filtration maintenance can control the fuel system failure outage rate at 0.7%, significantly lower than the industry average of 3.2%.
It is particularly crucial to comprehensively consider the hydrodynamic characteristics of the usage scenarios. When vehicles operate in an environment with a dust concentration of ≥15mg/m³ for a long time (such as in mining areas or construction sites), KEMSO’s technical documentation clearly recommends upgrading the three-stage filtration system every 15,000 kilometers. At this point, the dust-holding capacity of the standard filter (usually only 2-3 grams) becomes a bottleneck, while the external cyclone pre-filtering device can increase the dirt-holding capacity by 10 times. The flow field simulation conducted by Cummins Engineering team in 2023 demonstrated that this combined configuration can extend the pump core’s lifespan to 6,000 working hours, representing a 150% improvement over the basic solution. Regardless of the configuration, regular detection of the vacuum degree at the oil pump inlet (recommended value < 0.25 Bar) remains the core means to prevent flow attenuation, and the optimization rate of fuel system operation and maintenance costs reaches more than 65%.