The Indian Ministry of Road Transport and Highways (MoRTH) issued a notification of Bharat Stage (BS) VI emission standards for all major on-road vehicle categories in India directly, skipping BS V. In BS VI emission norms and performance of two wheeler engine, its very important to control the engine parameters. Hence some stringent tolerance applied to the engine parts dimensional specification. One of the main part of the engine is Cyl. head, in which combustion chamber is one of the critical parameter. Cyl. head combustion chamber volume plays critical role for emission norms and performance of engine and it should be measured accurately. Current industry practice for cyl. head combustion chamber volume inspection method with help of liquid filling inside the chamber. This method has got some limitation for achieving R&R less than or equal to 10% due to many uncertainties are included. If not measured close to specification in inspection process, then it will lead to low engine performance and also may lead to violating the emission norms. This paper discuses about new learning on critical parameter i.e cyl. head combustion chamber volume inspection with scanning technology non-contact dimensional inspection method to capture cloud co-ordinate points. These cloud co-ordinate points further used for computing the free form area of the chamber for volume calculation. This method also satisfying in line with MSA AIAG 4th edition guideline to achieve R&R less than or equal to 10%. Which will support to avoid unreasonable risks due to variation in cyl. head combustion chamber volume caused by malfunctioning of two wheeler engine motorcycle performance. Key concepts of item definition, combustion volume, determination of MSA & R&R and emission concept will be presented.


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    Title :

    Development of Measurement Capability in Cylinder Head Combustion Chamber Volume


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    WCX SAE World Congress Experience ; 2023



    Publication date :

    2023-04-11




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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