图书馆订阅: Guest
Begell Digital Portal Begell 数字图书馆 电子图书 期刊 参考文献及会议录 研究收集
雾化与喷雾
影响因子: 1.737 5年影响因子: 1.518 SJR: 0.814 SNIP: 1.18 CiteScore™: 2.2

ISSN 打印: 1044-5110
ISSN 在线: 1936-2684

卷:
卷 30, 2020 卷 29, 2019 卷 28, 2018 卷 27, 2017 卷 26, 2016 卷 25, 2015 卷 24, 2014 卷 23, 2013 卷 22, 2012 卷 21, 2011 卷 20, 2010 卷 19, 2009 卷 18, 2008 卷 17, 2007 卷 16, 2006 卷 15, 2005 卷 14, 2004 卷 13, 2003 卷 12, 2002 卷 11, 2001 卷 10, 2000 卷 9, 1999 卷 8, 1998 卷 7, 1997 卷 6, 1996 卷 5, 1995 卷 4, 1994 卷 3, 1993 卷 2, 1992 卷 1, 1991

雾化与喷雾

DOI: 10.1615/AtomizSpr.v6.i3.20
pages 257-284

SPRAY VISUALIZATION AND HYDRAULIC CHARACTERIZATION OF THE HOLES OF A FIVE-HOLE, VALVE-COVERED-ORIFICE NOZZLE OF AN ELECTRONICALLY CONTROLLED DIESEL INJECTOR

R. Campanella
Istituto di Macchine ed Energetica, Politecnico di Bari, Bari, Italy
V. Damiani
ELASIS, Sistema Ricerche FIAT nel Mezzogiorno, Centre Alimentazione Motori, Z.I. Modugno, Modugno, Italy
D. Laforgia
Dipartimento di lngegneria dell'Innovazione, Universita di Lecce, Lecce, Italy

ABSTRACT

A study of the spray of a standard, five-hole, valve-covered-orifice (V.C.O.) nozzle for D.I. diesel engines has been carried out, several pictures of the spray coming from each hole have been taken using the back-light photography technique. Injected volume and duration, supply pressure, spray penetration, angle, and diameter, and flash delay from start of injection have been measured; each spray depends strongly on the needle lift. The causes of such differences have been attributed to the different inclination of the holes, the asymmetric feeding condition of the holes (due to the eccentricity between needle and nozzle), and the microdefects caused by the drilling operation.


Articles with similar content:

EXPERIMENTAL STUDY ON VELOCITY DISTRIBUTION OF POSTIMPINGEMENT DIESEL SPRAY ON A WALL. PART 1: EFFECT OF IMPINGEMENT ANGLE ON FLOW PATTERN
Atomization and Sprays, Vol.24, 2014, issue 8
Masataka Arai, Yoshio Zama, Tomohiko Furuhata, Mohd Zaid Akop, Kazuma Sugawara
CFD Study of Needle Motion Influence on the Spray Conditions of Single-Hole Injectors
Atomization and Sprays, Vol.21, 2011, issue 1
P. Fajardo, Xandra Margot, S. Patouna, Sergio Hoyas
EFFECT OF NOZZLE HOLE GEOMETRY ON NON-EVAPORATING DIESEL SPRAY CHARACTERISTICS AT HIGH-PRESSURE INJECTION
Atomization and Sprays, Vol.22, 2012, issue 1
Jangsik Kong, Choongsik Bae
CHARACTERIZATION OF PROTOTYPE HIGH-PRESSURE SWIRL INJECTOR NOZZLES, PART II: CFD EVALUATION OF INTERNAL FLOW
Atomization and Sprays, Vol.10, 2000, issue 2
Sangmin Choi, Changsoo Jang, Choongsik Bae
INFLUENCE OF VORTEX FLOW AND CAVITATION ON NEAR-NOZZLE DIESEL SPRAY DISPERSION ANGLE
Atomization and Sprays, Vol.19, 2009, issue 3
Manolis Gavaises, A. Andriotis