커먼레일 타입 피에조 인젝터의 정밀 다단분사 제어를 위한 분사특성 연구A Study on the Injection Characteristics of a Piezo Injector for Controlling Accurate Multiple Injection
- Other Titles
- A Study on the Injection Characteristics of a Piezo Injector for Controlling Accurate Multiple Injection
- Authors
- 박희범; 김형익; 박상기; 이기형
- Issue Date
- Dec-2013
- Publisher
- 한국액체미립화학회
- Keywords
- Piezo Injector; Multiple Injection; Injection Rate; 피에조 인젝터; 다단 분사; 분사율
- Citation
- 한국액체미립화 학회지, v.18, no.4, pp.176 - 181
- Indexed
- KCI
- Journal Title
- 한국액체미립화 학회지
- Volume
- 18
- Number
- 4
- Start Page
- 176
- End Page
- 181
- URI
- https://scholarworks.bwise.kr/erica/handle/2021.sw.erica/29282
- ISSN
- 1226-2277
- Abstract
- 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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