Common-Rail-Einspritzsystem mit 3000 bar

Shinohara, Yukihiro; Takeuchi, Katsuhiko; Herrmann, Olaf Erik; Laumen, Hermann Josef

doi:10.1365/s35146-011-0005-7

Cited by 13 publications

(2 citation statements)

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“…Several studies have been conducted using an "ultra-high injection pressure" or "micro-hole nozzle" with its effect on the engine performance and emissions characteristics [296][297][298]. However, fuel injection equipment with "ultra-high-pressure injection" is still being created [299,300]. Li et al [301] concluded that, for GDI injectors that use ethanol fuel, the "ultra-high injection pressure" up to 300 bar is a potential method to improve the homogeneity of the air/fuel mixture.…”

Section: Ultra-high-pressure Injectionmentioning

confidence: 99%

Improving Thermal Efficiency of Internal Combustion Engines: Recent Progress and Remaining Challenges

2022

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Improving thermal efficiency and reducing carbon emissions are the permanent themes for internal combustion (IC) engines. In the past decades, various advanced strategies have been proposed to achieve higher efficiency and cleaner combustion with the increasingly stringent fuel economy and emission regulations. This article reviews the recent progress in the improvement of thermal efficiency of IC engines and provides a comprehensive summary of the latest research on thermal efficiency from aspects of thermodynamic cycles, gas exchange systems, advanced combustion strategies, and thermal and energy management. Meanwhile, the remaining challenges in different modules are also discussed. It shows that with the development of advanced technologies, it is highly positive to achieve 55% and even over 60% in effective thermal efficiency for IC engines. However, different technologies such as hybrid thermal cycles, variable intake systems, extreme condition combustion (manifesting low temperature, high pressure, and lean burning), and effective thermal and energy management are suggested to be closely integrated into the whole powertrains with highly developed electrification and intelligence.

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Section: Ultra-high-pressure Injectionmentioning

confidence: 99%

Improving Thermal Efficiency of Internal Combustion Engines: Recent Progress and Remaining Challenges

2022

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“…Here, the modulus of compressibility, pressure, fuel temperature, and engine rotational speed were all taken into consideration and the results were linearized control models and initial design for controllers and regulators used for approval of systems controlling rail pressure [5,7]. Work continues [11] on fourth-generation rail-based injection systems and on-line models adjusting the flow of fuel from the nozzle. This has served as inspiration to elaborate a simplified model of the fuel supply system.…”

Section: Introductionmentioning

confidence: 99%