Design of Giant Magnetostrictive Actuator for fuel injector

This paper presents a basic research on giant magnetostrictive actuator (GMA) for fuel injector. An injector is a pilot operational valve with position servomechanism, which enables to control injection rate freely with input current into the actuator. Based on the combination of finite element anal...

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Bibliographic Details
Main Authors: Liyi Li, Chengming Zhang, Baoquan Kou, Xiaopeng Li
Format: Conference Proceeding
Language:English
Subjects:
Actuator
Actuators
Finite element methods
Fuel Injector
Fuels
Magnetic analysis
Magnetic materials
Magnetostriction
Magnetostrictive
Prototypes
Servomechanisms
Testing
Valves
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Summary:This paper presents a basic research on giant magnetostrictive actuator (GMA) for fuel injector. An injector is a pilot operational valve with position servomechanism, which enables to control injection rate freely with input current into the actuator. Based on the combination of finite element analysis and experiment, a prototype of GMA is successfully made as well as the test platform. The injector is actuated by a GMA which outputs displacement of 38.3 mum within 0.03s. The result shows that the analysis of finite element computation meets well with the experimental research. It has a significant guidance meaning for the design and application of GMA based on giant magnetostrictive material (GMM). And this actuator can be also used for active vibration reduction.
ISSN:1938-8756
DOI:10.1109/VPPC.2008.4677483