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Self-Cleaning EGR Valve for Current and Future Diesel Applications
ISSN: 0148-7191, e-ISSN: 2688-3627
Published April 11, 2023 by SAE International in United States
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In this paper, an innovative EGR valve, containing an integrated self-cleaning function to mitigate the progressive buildup of carbon deposits, is described. Conventional EGR valves use Butterfly and Poppet mechanisms to open and close a round shaped exhaust gas port with limited ability to remove exhaust carbon deposits from the affected surfaces and mechanical elements.
The self-cleaning EGR valve, instead, combining both rotational and linear motions, continuously sweeps its internal passages while delivering the gas flow, removing the carbon deposits before they can adhere to the internal surfaces.
CitationFachechi, N., "Self-Cleaning EGR Valve for Current and Future Diesel Applications," SAE Technical Paper 2023-01-0404, 2023, https://doi.org/10.4271/2023-01-0404.
- Wozniak , M. , Siczek , K. , Zakrzewski , S. et al. Deposition Effect of Carbon Deposits on Charge Flow in EGR Valve Equipped CI Engine Combustion Engines 26
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