한국분무공학회지 (Journal of ILASS-Korea)

  • 제18권4호
  • /
  • Pages.176-181
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  • 2013
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  • 1226-2277(pISSN)
  • /
  • 2288-9051(eISSN)
한국분무공학회 (Institute for Liquid Atomization and Spray Systems-Korea)
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커먼레일 타입 피에조 인젝터의 정밀 다단분사 제어를 위한 분사특성 연구

A Study on the Injection Characteristics of a Piezo Injector for Controlling Accurate Multiple Injection

  • 투고 : 2013.09.11
  • 심사 : 2013.12.07
  • 발행 : 2013.12.30
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초록

In this study, injection quantity, rate and spray image of multiple injections which are important design parameters for a piezo type injector have been investigated. Interval of injections and a number of injections in multiple injection strategy has been controlled to verify interaction of each injection. Spray characteristics of multiple injections have been researched through optical process with a high speed camera in a high pressure chamber. In addition, a method of RMS(Root Mean Square) process has been used for comprehending the distribution of injection easily. As a result, in case of piezo type injector, characteristics of injection quantity according to charging voltage and the difference of injection quantity between single and triple injection were confirmed. Also, injection rate for increasing injection duration was confirmed. And spray characteristics of multiple injections were improved; multiple injections were possible in a shorter time interval between each injection. With this study, a possibilities of more accurate multiple injection control would be expected.

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참고문헌

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피인용 문헌

  1. A Study on the Optimization of Multiple Injection Strategy for a Diesel Engine using Grey Relational Analysis and Linear Regression Analysis vol.20, pp.4, 2015, https://doi.org/10.15435/JILASSKR.2015.20.4.247