Effect of fuel and nozzle geometry on the off-axis oscillation of needle in diesel injectors using high-speed X-ray phase contrast imaging

被引：9

作者：

Zhang, X. ^{[1
]}

Liu, J. ^{[1
]}

Wang, J. ^{[2
]}

机构：

[1] Shanghai Maritime Univ, Merchant Marine Coll, Shanghai 201306, Peoples R China

[2] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA

来源：

JOURNAL OF INSTRUMENTATION | 2016年 / 11卷

基金：

中国国家自然科学基金;

关键词：

X-ray mammography and scinto- and MRI-mammography; X-ray radiography and digital radiography (DR); INTERNAL FLOW; SPRAY CHARACTERISTICS; CAVITATION; BIODIESEL;

D O I：

10.1088/1748-0221/11/05/C05015

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

The diesel spray characteristics are strongly influenced by the flow dynamics inside the injector nozzle. Moreover, the off-axis oscillation of needle could lead to variation of orifice flow in the nozzle. In this paper, the needle oscillation was investigated using high-speed X-ray phase contrast imaging and quantitative image processing. The effects of fuel, injection pressure and nozzle geometry on the needle oscillation were analyzed. The results showed that the vertical and horizontal oscillation of needle was independent on the injection pressure. The maximum oscillation range of 14 mu m was found. Biodiesel application slightly decreased the needle oscillation due to high viscosity. The needle oscillation range increased generally with increasing hole number. The larger needle oscillation in multi-hole injectors was dominated by the geometry problem or production issue at lower needle lift. In addition, the influence of needle oscillation on the spray morphology was also discussed.

引用

页数：14

共 50 条

[1] Measurement of Diesel Nozzle Geometry with X-Ray Phase Contrast Imaging Technique
Yan, Yi
He, Zhixia
Zhong, Wenjun
Jiang, Zhaochen
Fu, Yanan
MANUFACTURING PROCESS AND EQUIPMENT, PTS 1-4, 2013, 694-697 : 1224 - +
[2] HIGH-SPEED X-RAY IMAGING OF DIESEL INJECTOR NEEDLE MOTION
Kastengren, A. L.
Powell, C. F.
Liu, Z.
Fezzaa, K.
Wang, J.
PROCEEDINGS OF THE 2009 SPRING TECHNICAL CONFERENCE OF THE ASME INTERNAL COMBUSTION ENGINE DIVISION, 2009, : 247 - 258
[3] X-ray phase contrast and absorption imaging for the quantification of transient cavitation in high-speed nozzle flows
Karathanassis, I. K.
Heidari-Koochi, M.
Zhang, Q.
Hwang, J.
Koukouvinis, P.
Wang, J.
Gavaises, M.
PHYSICS OF FLUIDS, 2021, 33 (03)
[4] Fast X-ray digital imager for high-speed phase-contrast X-ray imaging
Yoneyama, Akio
Takeda, Tohoru
Wu, Jin
Lwin, Thet-Thet
Hyodo, Kazuyuki
Hirai, Yasuharu
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS, 2007, 46 (3A): : 1205 - 1207
[5] Inhaler Spray Investigation Using High-Speed Phase-Contrast X-Ray and Schlieren Imaging
Alan Patrick McKiernan
Pharmaceutical Research, 2019, 36
[6] Inhaler Spray Investigation Using High-Speed Phase-Contrast X-Ray and Schlieren Imaging
McKiernan, Alan Patrick
PHARMACEUTICAL RESEARCH, 2019, 36 (08)
[7] High-speed X-Ray Phase-Contrast Imaging of String Cavitation in an Enlarged Diesel-Injector Orifice Replica
Karathanassis, I. K.
Koukouvinis, P.
Lorenzi, M.
Kontolatis, E.
Li, Z.
Wang, J.
Mitroglou, N.
Gavaises, M.
28TH CONFERENCE ON LIQUID ATOMIZATION AND SPRAY SYSTEMS, ILASS-EUROPE 2017, 2017, : 1019 - 1026
[8] High-speed x-ray CT imaging of a strongly cavitating nozzle flow
Bauer, D.
Barthel, F.
Hampel, U.
JOURNAL OF PHYSICS COMMUNICATIONS, 2018, 2 (07):
[9] Research on Nozzle Geometry Measurement with Synchrotron Radiation X-ray Phase Contrast Imaging Technique
Xu, Cangsu
Luo Qiyuan
Jian, Ma
Fang, Qi
Xu Yifan
MATERIALS, TRANSPORTATION AND ENVIRONMENTAL ENGINEERING, PTS 1 AND 2, 2013, 779-780 : 1007 - +
[10] HIGH-SPEED X-RAY IMAGING OF NEEDLE-FREE JET INJECTIONS
Chang, Jean H.
Hogan, N. Catherine
Hunter, Ian W.
2014 IEEE 11TH INTERNATIONAL SYMPOSIUM ON BIOMEDICAL IMAGING (ISBI), 2014, : 473 - 476

← 1 2 3 4 5 →