Publication detail
Magnetorehological fluid seal with minimum friciton torque
KUBÍK, M. MACHÁČEK, O. MAZŮREK, I.
English title
Magnetorehological fluid seal with minimum friciton torque
Type
conference paper
Language
en
Original abstract
The paper deals with design and tests of MagnetoRheological Fluid seal (MRFs) using innovative conception of magnetic circuit. The common design of magnetic seal uses ferrofluid. Low friction torque and low burst pressure are typical for this kind of seals. Replacement of the ferrofluid by magnetorheological fluid increases the burst pressure; however, the friction torque increase too. The optimum for sealing is low friction torque and high burst pressure. The new design of MRFs described in this paper meets both requirements; is based on gradient-pinch mode. The friction torque and burst pressure of this type of design and common design of MRFs were tested and compared. The new design of MRFs achieved 20 times lower friction torque that current solution MRFs. The developed MRFs combines the benefits of common FFs and MRFs.
English abstract
The paper deals with design and tests of MagnetoRheological Fluid seal (MRFs) using innovative conception of magnetic circuit. The common design of magnetic seal uses ferrofluid. Low friction torque and low burst pressure are typical for this kind of seals. Replacement of the ferrofluid by magnetorheological fluid increases the burst pressure; however, the friction torque increase too. The optimum for sealing is low friction torque and high burst pressure. The new design of MRFs described in this paper meets both requirements; is based on gradient-pinch mode. The friction torque and burst pressure of this type of design and common design of MRFs were tested and compared. The new design of MRFs achieved 20 times lower friction torque that current solution MRFs. The developed MRFs combines the benefits of common FFs and MRFs.
Keywords in English
Magnetorheological fluid seal, MR fluid seal, magnetic seal, magnetic shaft seal, liquid o-ring
Released
14.05.2018
Publisher
Institute of Theoretical and Applied Mechanics of the Cech Academy of Sciences
Location
Praha
ISBN
978-80-86246-88-8
ISSN
1805-8256
Book
ENGINEERING MECHANICS 2018
Volume
24
Number
1
Pages from–to
445–448
Pages count
4
BIBTEX
@inproceedings{BUT150926,
author="Michal {Kubík} and Ondřej {Macháček} and Ivan {Mazůrek},
title="Magnetorehological fluid seal with minimum friciton torque",
booktitle="ENGINEERING MECHANICS 2018",
year="2018",
volume="24",
number="1",
month="May",
pages="445--448",
publisher="Institute of Theoretical and Applied Mechanics of the Cech Academy of Sciences",
address="Praha",
isbn="978-80-86246-88-8",
issn="1805-8256"
}