Sage Journals: Discover world-class research

Abstract

In recent years, further improvements in the performance of internal combustion engines to reduce environmental burden have been demanded. The combustion state of an engine is affected by the parameters of the dynamic valve system, such as the opening/closing timing and the lift of the intake and exhaust valves. Therefore, we investigate an electromagnetic valve-drive system in this study. Two models are created to improve the magnetic circuit and increase thrust. To investigate the thrust characteristics of these actuators, an electromagnetic field analysis is conducted using the finite element method. Meanwhile, to investigate the effect of the yoke material on the thrust, an electromagnetic field analysis is performed based on materials with different saturation magnetic flux densities and magnetic permeabilities.

Keywords

Linear motor linear actuator voice coil motor electromagnetic valve drive system EVDS electromagnetic

Get full access to this article

View all access options for this article.

References

Fukunaga

Kobayashi

Murayama

and Uchida

, The effect of variable valve control strategies using a heavy duty diesel engine equipped with 2-stage turbocharging system, Transactions of Society of Automotive Engineers of Japan44(2) (2013), 335–341.

Urata

Kondo

and Takabayashi

, Gasoline engine combustion technology in honda, Journal of the Combustion Society of Japan60(191) (2018), 18–26.

Takatsuka

Hashimoto

Komatsu

Enoki

and Ishikawa

, Effects of intake valve closure timing on heavy-duty diesel engine performance, Transactions of Society of Automotive Engineers of Japan53(2) (2022), 308–313.

Schroeder

Henry

R.R.

Lequesne

B.P.B.

and Murty

B.V.

, Method and apparatus for electrically driving engine valves, U.S. Patent, 1994, 5,327,856.

Moriya

Komatsu

Sono

and Sugai

, Energization control method and electromagnetic control system in electromagnetic driving device, U.S. Patent, 1997, 5,636,601.

Fuse

Okada

Matsuda

and Konno

, Research on electromagnetic valve actuator, The Proceedings of Ibaraki District Conference (2004), 43–44.

Uno

Muraguchi

Konno

and Okada

, Research on electromagnetic valve actuator, The Japan Society of Mechanical Engineers07-13 (2006), 175–176.

Uno

Muraguchi

Konno

and Okada

, Speed-up trial of electromagnetic engine valve, The Japan Society of Mechanical Engineers07-13 (2007), 177–180.

Okazaki

Shibasaki

Ishihara

and Ogura

, Development of small size engine with electric magnetic driving valve for fuel competition vehicle, The Proceedings of Conference of Kanto Branch17 (2011), 465–466.

10.

Okazaki

Hasegawa

and Nemoto

, Development of variable valve actuation gear for automobile, J. Edu. Hist. Tech16(1) (2014), 29–34.

11.

Majima

Kuroda

Suzuki

Narita

and Kato

, Performance improvement of gasoline engines using a linear actuator: Fundamental consideration of the heat effect on thrust characteristics, in: Proceedings of the School of Engineering Tokai University, Series E, 2021.

Basic study on high precision positioning in electromagnetic valve drive system for improving internal combustion engine using linear actuator

Abstract

Keywords

Get full access to this article

References