| Issue |
E3S Web Conf.
Volume 551, 2024
International Conference on Electronics, Engineering Physics and Earth Science (EEPES 2024)
|
|
|---|---|---|
| Article Number | 01011 | |
| Number of page(s) | 7 | |
| Section | Energy Efficiency and Applied Thermodynamics | |
| DOI | https://doi.org/10.1051/e3sconf/202455101011 | |
| Published online | 17 July 2024 | |
Effect of unloader valve spring tension on hydraulic performance of CRI1 electromagnetic injector
1 University of Ruse, Engines and Vehicles Department, 8 Studentska Str., Bulgaria,
2 University of Ruse, Philologocal and Natural Sciences Department, Silistra, Bulgaria,
3 Technical University of Varna, Transport Equipment and Technologies Department, Varna, Bulgaria
* Corresponding author: spi@uni-ruse.bg
The report reflects the results of an experimental study of the influence of the tension of the unloading valve spring on the hydraulic characteristics of electromagnetic nozzles. The research was done on a CMX6000X universal diesel fuel system test bench. An electromagnetic nozzle of the first-generation Common Rail - BOSCH CRI1 was chosen as the object of the study. It was found that with an increase in the tension of the spring of the unloading valve in all test modes, a decrease in the amount of fuel per cycle was observed. The rate of change of the amount of fuel per cycle for the individual test modes is different in the individual parts of the size range of the adjusting shim. The optimal thickness of the adjusting shim for the spring tension of the unloading valve for the tested nozzle is from 1.60 mm to 1.70 mm.
© The Authors, published by EDP Sciences, 2024
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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