We used a microscope to "magnify" the details of the 20,000-hour durability test of the Liebherr LI3 injector.

The Liebherr injector development story continues.：After 20000 hours of field testing，LI3 Common rail injector also passed the subsequent verification test successfully.，And once again prove its excellent performance.。

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AtLI3 On the product platform，The injectors easily passed 20000 hours of field durability testing，Even after a long run，And still maintain its performance unimpaired.，Ensure reliable operation of the engine。After being used in the field，This conclusion was also supported by a series of validation tests carried out by Liebherr's in-house test centre。

LI3 Injector during long term use in Australian mines，

20000 hours of successful operation。

Research shows that，Engine manufacturers and their customers due to useLINotable progress has been made with the 3 injectors.，Key benefits includeDurability of components and materials improves maintenance intervals，So that that maintenance cost is effectively reduce。In addition，Fuel injectorLow wear and high life expectancy ensure stable engine operation，While reducing the likelihood of breakdowns and warranty claims。

“Zoom in”Details behind the success

We used a microscope to observe the relevant components of the injector after 20000 hours of operation.。

The test results show，Ven after more than 20000 hours of operation，The injectors still show remarkable stability，Of which 96%The injection rate at the test point remains within the standard range.。This ensures the continuation of Liebherr technology in harsh environments.、Consistent engine performance with impressive reliability and durability。

Careful analysis of the injector assembly shows that，The wear is acceptable.，It does not interfere with the function of the fuel injector。

FromLiebherr Components Deggendorf GmbH (Germany) Lead Verification EngineerGeorg HuberExplain：

“Particular attention was paid to the wear of the nozzle needle valve。The needle is in repeated contact with the seat area as it opens and closes.，Similar to hitting the same point repeatedly with a hammer.。Final，Wear occurs at both the hammer and the point of contact。However，Our needle valves are coated with a strongDLCLayer，This not only reduces wear on the needle valve itself，The wear of the nozzle is also reduced。”

Another key aspect of the test is to check the inside of the nozzle——Cavitation phenomenon in blind hole and nozzle hole area。Compared to reference group injector，Liebherr's injectors show minimal cavitation effects in these critical areas.。This is crucial.，Because during engine operation，Cavitation can cause serious problems.。Because the cavitation effect is relatively small,，The injection rate remains stable.，This reduces the risk of engine performance degradation。In addition，These factors also affect the shape of the fuel spray within the combustion chamber，And ultimately affect the emissions performance of the engine。So，Emission stability is also ensured by the minimal cavitation effect of the Liebherr injector。

The maximum power is 500Kw/Large engine with cylinder

Deliver greater operational efficiency

The remarkable verification results confirm the excellent quality and performance of Liebherr injectors.。So，LI3 Injectors help boost maximum power up to 500 kW/Operating efficiency and reliability of large engines with three cylinders.。

Look to the future，Engine manufacturers and end users will be able to benefit from this stable and durable injection technology，This not only reduces operating costs,，But also can enhance the reliability of the whole operation.。

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