Investigation on the Deformation of Injector Components and Its Influence on the Injection Process
The deformation of injector components cannot be disregarded as the pressure of the system increases. Deformation directly affects the characteristics of needle movement and injection quantity. In this study, structural deformation of the nozzle, the needle and the control plunger under different pressures is calculated by a simulation model. The value of the deformation of injector components is calculated and the maximum deformation location is also determined. Furthermore, the calculated results indicates that the deformation of the control plunger increases the control chamber volume and the cross-section area between the needle and the needle seat. A MATLAB model is established to The influence of structural deformation on needle movement characteristics and injection quantity is investigate by a numerical model. The results show that the characteristic points of needle movement are delayed and injection quantity increases due to the deformation. Furthermore, the degree of the two effects increases with pressure. Therefore, this paper completes the numerical calculation model of the injector and provides guidance for accurate injection under high pressure.
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/issn/01487191
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Supplemental Notes:
- Abstract reprinted with permission of SAE International.
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Authors:
- Xu, Dan
- Sun, Baigang
- Yang, Qing
- Wu, Dongwei
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Conference:
- WCX SAE World Congress Experience
- Location: Detroit Michigan, United States
- Date: 2020-4-21 to 2020-4-23
- Publication Date: 2020-4-14
Language
- English
Media Info
- Media Type: Web
- Features: References;
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Serial:
- SAE Technical Paper
- Publisher: Society of Automotive Engineers (SAE)
- ISSN: 0148-7191
- EISSN: 2688-3627
- Serial URL: http://papers.sae.org/
Subject/Index Terms
- TRT Terms: Combustion; Compression ignition engines; Deformation; Diesel engines; Fuel injection; Mathematical models; Pistons (Engines)
- Subject Areas: Energy; Highways; Vehicles and Equipment;
Filing Info
- Accession Number: 01740171
- Record Type: Publication
- Source Agency: SAE International
- Report/Paper Numbers: 2020-01-1398
- Files: TRIS, SAE
- Created Date: May 26 2020 10:20AM