Design and Analysis of a Double-Layer Magnetic Circuit Structure for High-Force Density Hybrid Fuel Injector
- Authors
- Liu, Huai-Cong; Cho, Sooyoung; Hong, Hyun-Seok; Lee, Ju; Lee, Ho-Joon
- Issue Date
- Nov-2017
- Publisher
- IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
- Keywords
- Demagnetization; equivalent magnetic circuit (EMC); flux leakage; hybrid fuel injector; spring force
- Citation
- IEEE TRANSACTIONS ON MAGNETICS, v.53, no.11
- Indexed
- SCIE
SCOPUS
- Journal Title
- IEEE TRANSACTIONS ON MAGNETICS
- Volume
- 53
- Number
- 11
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/151266
- DOI
- 10.1109/TMAG.2017.2707342
- ISSN
- 0018-9464
- Abstract
- This paper proposes the design and analysis of a double-layer magnetic circuit structure for a high-force density hybrid fuel injector. In general, fuel injector models have disadvantages such as a significant leakage flux and magnetic saturation; therefore, a finite-element method is used to detail the model design and reduce the leakage flux from the electromagnet pole to the lead pipe. This change can help improve the fuel injector performance. In addition, a permanent magnet (PM) is inserted to increase the force density. Moreover, the no-load performance and demagnetization characteristic of the injector are analyzed according to the injector's working environment. The optimized hybrid fuel injector model with a PM shows substantially improved performance compared to a conventional design.
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