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논문 기본 정보

자료유형
학술저널
저자정보
Han-Sub Sim (Jinju National University)
저널정보
한국기계가공학회 한국기계가공학회지 한국기계가공학회지 제8권 제2호
발행연도
2009.6
수록면
83 - 89 (7page)

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초록· 키워드

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An air-fuel ratio control is essential in reducing hazardous exhaust emissions from a compressed natural gas(CNG) engine, and can be accomplished by accurate control of gas injection flow. In this study, theoretical research was conducted on injection characteristics of a solenoid gas injector, and injection experiments for calibration and analysis were performed. Various factors for gas injection flow such as injection pressure, gas temperature, and supply voltage are studied. A dynamic flow equation of the natural gas was proposed on the basis of flow dynamics theories and results of the injection experiment. The verification of the dynamic flow equation of the solenoid injector was carried out with a large CNG-engine applied to an urban bus. Air-fuel ratio control experiments were conducted in both steady and transient state. Results of injection experiments for the solenoid injector and the CNG-engine was proved the control method proposed herein to be effective.

목차

1. Introduction
2. Injection Characteristics
3. Experimental and results
4. Application test and results
5. Conclusion
Acknowledgement
References

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UCI(KEPA) : I410-ECN-0101-2009-581-018525925