A Study on Injection Rate Characteristics of a Diesel Injector

• Journal title : Journal of ILASS-Korea
• Volume 20, Issue 4,  2015, pp.217-222
• Publisher : Institute for Liquid Atomization and Spray Systems-Korea
• DOI : 10.15435/JILASSKR.2015.20.4.217
Title & Authors
A Study on Injection Rate Characteristics of a Diesel Injector
Chung, Jaewoo; Kim, Namho; Lim, Chanhyun; Kim, Dugjin;

Abstract
In this study, Injection rate tests of a Diesel common-rail injector have been performed with injection volume measurement type injection rate test system EMI21 for construction of injector model can be used in an engine calibration mean valued model. The measuring principle of the test system is based on measurement of dispalcement of a movable measurement piston by the volume of fluid released by the injector. From these injection rate test results, the characteristics on shape of instantaneous injection rate and injection fuel amount have been investigated and injection fuel amount calculation equation based on test results has been newly constructed. This equation is very simple and calculation error is less than 5% with test results for wide range injection pressure (200~1800 bar) and injection duration ($\small{200{\sim}1800{\mu}s}$) conditions. So, it is anticipated that newly constructed simple injection fuel amount model in this study can be efficiently used on engine calibration and control model.
Keywords
Injector;Injection rate;Diesel engine;Fitting Model;Engine model;
Language
Korean
Cited by
1.
분사율을 이용한 직접 분사식 다공 가솔린 인젝터의 분사특성 연구,박정현;신달호;박수한;

한국액체미립화학회지, 2016. vol.21. 1, pp.20-28
1.
Study on the Injection Characteristics using Injection Rate in a Direct-injection Gasoline Injector with Multi-hole, Journal of ILASS-Korea, 2016, 21, 1, 20
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