Durability Study of a Light-Duty High Pressure Common Rail Fuel Injection System Using E10 Gasoline

Tzanetakis, Tom; Sellnau, Mark; Costanzo, Vincent; Traver, Michael; Williams, Tony; Kahraman, Erol; Petot, Jean Herve; Meissonnier, Guillaume; Tekawade, Aniket; Sforzo, Brandon; Powell, Christopher F.

doi:10.4271/2020-01-0616

Cited by 4 publications

(1 citation statement)

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“…Damage due to erosion can quickly counteract any benefits gained by raising the injection pressure. Durability studies have shown that in as little as 600 h, cavitation damage has been detected in common-rail injection systems (Tzanetakis et al, 2018;Tzanetakis et al, 2020). Accurate models for estimating injector durability are crucial for maintaining efficiency throughout the engine's life cycle.…”

Section: Introductionmentioning

confidence: 99%

Experimental Investigation of Cavitation-Induced Erosion Using X-Ray Imaging and Tomography

et al. 2022

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High injection pressure in diesel engines can lead to cavitation-induced erosion in injector nozzles. One important factor affecting the severity of erosion is the fuel and its properties. Traditionally, modeling and simulation studies have used single-component representations of fuels, but realistic fuels feature a multitude of components and can even include volatile additives such as water and alcohol. To provide realistic benchmarks and comparisons, experimental measurements quantifying erosion characteristics were made using ultra-low sulfur diesel (ULSD) and two alternative diesel fuels (ADF). X-ray imaging and computed tomography were used to investigate cavitation-induced erosion onset and progression. Hard X-ray tomography revealed injector internal geometry, including details such as surface marks from the manufacturing process and erosion patterns from repeated injections. Erosion progression was measured using X-ray tomography and imaging performed between injections. The critical erosion site was found to be similar across different fuel blends, while the erosion rate and incubation time were sensitive to the fuel blend. The injector geometry and the erosion characteristics were also prepared for numerical model development and validation.

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Section: Introductionmentioning

confidence: 99%