A study on the design and application of optimized solenoid for diesel unit injector

Hwang, Jae Won; Kal, Han Joo; Park, Jaekeun; Martychenko, Alexander A.; Chae, Jae Ou

doi:10.1007/bf02939329

Cited by 8 publications

(8 citation statements)

References 3 publications

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“…14 The gaseous fuel direct injectors require new technology to adapt to high-pressure gas injection and precision. Recently, there have been many investigations of solenoid-type gasoline and diesel injectors, [15][16][17][18][19][20][21][22][23][24][25][26] but there are very few investigations of gaseous fuel injectors using electric solenoids. Therefore, gaseous fuel injectors using electric solenoid valves ought to be investigated further.…”

Section: Introductionmentioning

confidence: 99%

A simulation and experimental study on the operating characteristics of a solenoid gas injector

Hung

2019

Advances in Mechanical Engineering

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Purpose of this study is to develop a solenoid actuator that can be used for natural gas injector. Operation of the solenoid injector is described by two mathematical models including an electrical model and a mechanical model. The solenoid injector is also modeled and simulated in Maxwell and Simplorer based on the specifications of a real solenoid injector. The operating characteristics of the solenoid injector, including the current, electromagnetic force, and displacement of the plunger, are investigated under the effects of input parameters. In addition, experimental systems are established to examine the electromagnetic force and the plunger displacement in the solenoid injector under the effects of air gap and input voltage, respectively. The simulation results show that the electromagnetic force and displacement of the plunger can be easily increased by reducing the length and increasing the width of the cross-sectional shape of the coil. In addition, the increased length and diameter of plunger also contribute to improving the electromagnetic force. The increase in plunger mass results in fluctuating plunger displacement, which can affect the quality of injection. The simulation results are validated by experimental results on the effects of air gap and input voltage.

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Section: Introductionmentioning

confidence: 99%

A simulation and experimental study on the operating characteristics of a solenoid gas injector

Hung

2019

Advances in Mechanical Engineering

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“…Beause the eddy current loss converts the electric energy into heat energy, but not into the mechanic energy that is needed, it will reduce the dynamic response speed of GDI injector [18]. Figure 14 reports the eddy current loss by different processing technologies at t = 0.15 ms, it can be seen that, with the application the MIM technology, the eddy current loss of GDI-III is significantly less than the GDI-I and GDI-II, the simulation results show that, the eddy current loss is decreased by 9.8% after MIM technology is used on GDI injector magnetic circuit parts processing.…”

Section: Simulation Resultsmentioning

confidence: 99%

“…In the mechanical transient process, discrete calculation of displacement is used and the discrete format can be expressed as [18].…”

Section: Electromagnetic Finite Element Theorymentioning

confidence: 99%

Improved processing and performance of GDI injector based on metal injection molding technology

Cheng

Zhang

Guo

et al. 2014

JAE

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A new near-net-shape technology (MIM Technology) has been first introduced to GDI injector processing expected to solve the problems of inefficiency, low machining accuracy, low material utilization rate and unstable performance that exist in traditional processes. In order to improve the comprehensive performance of GDI injector Fe-based Nano-crystalline, soft magnetic alloy material has been used, and some structures of the magnetic circuit parts have been optimized. The excellent machinability, physicochemical properties, materials applicable of the MIM technology has been analyzed by tracking test. The comprehensive performances of different GDI injector samples have been analyzed by simulation analysis and experimental validation. As a result, the samples which were processed by the MIM technology reduce the skin effect and eddy current loss by 9.8%, accelerate the starting current rise rate by 2.5% and shorten the dynamic response time by 14.2%. The dynamic injection quantity increases by about 2.5%, and the linear range of dynamic fuel injection quantity is expanded about 9.6%.

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“…The operating performance of the EPR depends on electromagnetic force of the solenoid valve. The previous studies concentrated on improving the electromagnetic force of solenoids based examination of structural parameters [5][6][7][8][9][10][11][12]. Hung et al [5] ISSN: 2734-9373 https://doi.org/10.51316/jst.152.ssad.2021.31.2.11 Received: December 23, 2020; accepted: May 13, 2021 developed a solenoid applied for a gas injector, in which they varied structural parameters such as plunger mass, spring stiffness, and coil turns to increase the electromagnetic force.…”

Section: Introduction *mentioning

confidence: 99%

“…Hwang et al [9] investigated the effects of input parameters such as input voltage, wire diameters and winding numbers on the performance of a solenoid used for diesel injector. Their results showed that the response time of the solenoid depended more on the winding number of the wire than on the wire diameter.…”

Section: Introduction *mentioning

confidence: 99%

A Study on the Effects of Plug Shape on Operating Performance of an Electric Pressure Regulator Applied for Gaseous Fueled Vehicles

2021

JST: SSAD

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A model-based study was conducted to examine the effects of plug shape on electromagnetic force and dynamic response of an electric pressure regulator (EPR) applied for gaseous fueled vehicles. Mathematical models were established to describe the operation of the EPR, including mechanical and electrical models. A two-dimensional (2D) symmetric model of the EPR was built in Maxwell software to simulate the electromagnetic force under the effects of plug shape. Afterward, the 2D symmetric model of EPR with the electromagnetic force calculated was imported into Simplorer software to simulate the dynamic response of the EPR based on the influence of plug shape. The shape of plug in the EPR was changed through the dimension parameters denoted by dimension (h) and slope angle (). The simulation results show that the electromagnetic force and dynamic response of the EPR can be optimized when h and  are selected at 3mm and 480, respectively.

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A study on the design and application of optimized solenoid for diesel unit injector

Cited by 8 publications

References 3 publications

A simulation and experimental study on the operating characteristics of a solenoid gas injector

A simulation and experimental study on the operating characteristics of a solenoid gas injector

Improved processing and performance of GDI injector based on metal injection molding technology

A Study on the Effects of Plug Shape on Operating Performance of an Electric Pressure Regulator Applied for Gaseous Fueled Vehicles

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