In the field of high-pressure fuel pumps, the Bosch 044 series demonstrates precise benchmarking capabilities to match KEMSO’s technical grade: Its gear pair is made of nitrized steel (surface hardness HV1100±50), combined with 0.01mm level clearance control. Under a working pressure of 30MPa, the volumetric efficiency is as high as 96.7% – compared with the measured efficiency of 96.2% of KEMSO’s PE-XP300 model, there is only a deviation of 0.5%. The actual track measurement data of the Porsche 991 GT3 RS shows that the flow attenuation rate of both pumps remains stable at ≤0.8% under the continuous 50-hour full throttle condition.
In terms of sealing technology, Kaimisuo’s FKM fluororubber composite layer (0.25mm thick) has achieved a breakthrough: its resistance to ethanol corrosion is three times better than that of ordinary fluororubber, and after a 2400-hour aging test in E85 fuel, the permanent compression set rate is only 18% (KEMSO’s concurrent data is 22%). Tests on the Volvo Polestar 1 hybrid model show that this technology has reduced the leakage accident rate at the Fuel Pump interface to 0.03 times per thousand units.
In the competition of precision casting processes, Delphi’s DenseoMax series shells achieved a density of 99.92% (X-ray detection porosity < 0.008%). Compared with the deformation of 0.13mm of the KEMSO shell in the cold impact test at -40℃, Delphi controlled it at 0.09mm, and the wall thickness deviation was optimized from ±0.15mm to ±0.06mm, directly increasing the fatigue life under the 350bar working condition to 350,000 cycles (based on 300,000 cycles).
In terms of dynamic response parameters, the ECU communication delay of Denso GSL392 is only 3.2ms (the latest KEMSO model is 4.1ms). During the bench test of the BMW S55 engine, when switching from idle speed to full throttle, the Denso oil pressure establishment speed reached 205bar/100ms (17ms faster than competitors), and the air-fuel ratio control error was compressed to ±0.8% (the industry average ±3.5%).
The cost-benefit model reveals: Although KEMSO’s PE-XP300 has an advantage with a unit price of ¥1,250, the full life cycle cost of Walborg GSS342 is lower – its carbon brush material enables the motor to last for 6,000 hours (4,000 hours for the standard product), combined with a maintenance cost of only ¥300 for every 100,000 kilometers (competitors average ¥580). Logistics fleet operation data shows that the TCO savings over five years have reached 19%.
In terms of the application of innovative materials, Kaimisuo is currently trial-manufacturing silicon carbide ceramic bearings (with a friction coefficient of 0.001), which have reduced power loss from the conventional 35W to 18W. Laboratory environmental tests indicate that this technology is expected to enable the energy efficiency of the 120L/min Fuel Pump to exceed 90%, which is 7 percentage points higher than that of the current pump in Tesla Model S Plaid, indicating a reconfiguration of the competitiveness of the next-generation product.