Design of a Double-Path Magnetic Circuit Structure Hybrid Fuel Injector Considering Demagnetization Characteristics

Liu, Huai-Cong; Lee, Ho‐Joon; Lee, Ju

doi:10.1007/s11664-018-6814-4

Cited by 3 publications

(2 citation statements)

References 7 publications

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“…211 It affects many biological processes, such as cell proliferation, apoptosis, and metabolism. The imbalance of the pH value influences the physiological functions of the organisms, 212–214 which further leads to a series of diseases, such as Alzheimer's disease and cancer. 215,216 The unique carboxylic spiro-ring opening and closing transformation enable flavylium to serve as an excellent design platform for pH probes.…”

Section: Flavylium Based Fluorescent Probesmentioning

confidence: 99%

Natural flavylium-inspired far-red to NIR-II dyes and their applications as fluorescent probes for biomedical sensing

Sun

et al. 2022

Chem. Soc. Rev.

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Section: Flavylium Based Fluorescent Probesmentioning

confidence: 99%

Natural flavylium-inspired far-red to NIR-II dyes and their applications as fluorescent probes for biomedical sensing

Sun

et al. 2022

Chem. Soc. Rev.

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“…The control valve in the injector connects or cuts off the fuel circuit under the action of the solenoid valve and adjusts the control chamber pressure by changing the fuel flow rate in fuel control circuit, so as to change the force and control the movement of needle valve [3]. Thus, the hydraulic process in the fuel control circuit of injector can determine the opening and closing process of needle valve.…”

Section: Introductionmentioning

confidence: 99%

Study on Opening and Closing Motion Law of Common Rail Injector Needle Valve

Zhang

2022

Advances in Transdisciplinary Engineering

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The motion of common rail injector needle valve and the hydraulic process of fuel control circuit are studied by using simulation method. The simulation model is verified by comparing the injection rate curve. The results demonstrate that the lifting of the injector ball valve changes the fuel flow in the control chamber, leading to two different speed stages as the needle valve is opened. The seating of ball valve changes the clearance between the ball valve and the valve seat, and the needle valve closing motion curve slope remains unchanged. The increase of rail pressure affects the needle valve motion speed at the rapid opening stage. When the rail pressure reaches a certain valve, it no longer affects the motion characteristics of the needle valve. The change of fuel inlet hole diameter affects the needle valve rapid opening and closing movement. The change of fuel outlet hole diameter mainly affects the closing movement of needle valve.

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Method and System for Testing the Working Characteristics of Vehicle Fuel Injector

Liu¹,

Li²,

Han³

et al. 2021

MENG

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Background: The vehicle fuel injector directly affects the power performance, emission characteristics and economic efficiency of the engine. At present, several testing standards are stipulated on accurate measurement of the working characteristics of fuel injectors. Objective: The purpose of this study is to provide an efficient patent about the method and system for testing the working characteristics of vehicle fuel injector. Methods: Two key techniques are significant to establish the standard test environment. The patent about the pressure control approach and injector driving method was proposed. The adaptive fuzzy PID approach is applied in pressure control. An adaptive multi-functional driver was designed and developed for both the voltage-driven and current-driven port fuel injectors. Results: The experiments on the two key technologies were operated. During the dynamic flow test, the settling time using the system was 1ms. For the static flow test, the settling time was 1 s. The maximum changing rate of the pressure fluctuation was 1%. Then the system was verified by test on the flow characteristics and dynamic response of the voltagedriven and current-driven injectors. The linear deviation of each dynamic flow curve is between ± 3% to ± 6%. Furthermore, the deviation of the dynamic flow curves from the repeated test is small. The maximum deviation of the static flow results is less than 4%. And the dynamic response of the injector varies with the change of the pressure. Conclusion: The system meets the requirements of the related standards. The experimental results prove that the system is stable and reliable.

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Design of a Double-Path Magnetic Circuit Structure Hybrid Fuel Injector Considering Demagnetization Characteristics

Cited by 3 publications

References 7 publications

Natural flavylium-inspired far-red to NIR-II dyes and their applications as fluorescent probes for biomedical sensing

Natural flavylium-inspired far-red to NIR-II dyes and their applications as fluorescent probes for biomedical sensing

Study on Opening and Closing Motion Law of Common Rail Injector Needle Valve

Method and System for Testing the Working Characteristics of Vehicle Fuel Injector

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