A New Electromagnetic Linear Actuator for Quick Latching

Author

Kim, Jinho ; Chang, Junghwan

Author_Institution

Korea Inst. of S&T Evaluation & Planning, Seoul

Volume

43

Issue

4

fYear

2007

fDate

4/1/2007 12:00:00 AM

Firstpage

1849

Lastpage

1852

Abstract

The traditional engine valve train in a combustion engine is the mechanically driven camshaft system that provides one-fixed valve timing. The variable valve timing (VVT), however, is highly required to achieve the significant improvement in fuel economy and lower emission. To provide the VVT, the double solenoid type of actuators with steel-made armature have been developed in past years, but it requires electric power in the most engine operating period, the starting is difficult and the efficiency is low. In this paper, a new linear actuator using permanent magnets is proposed and the dynamic performances are analyzed by finite-element analysis. The results show that the designed colenoid system has a fast transition time between valve events suitable for the practical use in combustion engine valve system

Keywords

camshafts; electric drives; electromagnetic actuators; finite element analysis; internal combustion engines; linear machines; permanent magnets; solenoids; valves; combustion engines; double solenoid types; electromagnetic linear actuators; engine valve train; finite element analysis; fuel economy; latching methods; mechanical driven camshaft system; one-fixed valve timing; permanent magnets; steel-made armature; variable valve timing; Camshafts; Combustion; Engines; Fuel economy; Hydraulic actuators; Magnetic analysis; Performance analysis; Solenoids; Timing; Valves; Colenoid; finite-element analysis; linear actuator; solenoid; variable valve timing (VVT);

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2006.892289

Filename

4137749