Results 261 to 270 of about 176,817 (335)

Numerical Analysis and Experimental Study on Pole Piece Integrated Magnetic Fluid Seal

IEEE transactions on magnetics, 2022
Magnetic fluid seals are widely used. However, during the filling process of the magnetic fluid, a large part of the magnetic fluid is attracted to the magnet, causing the loss of the magnetic fluid, and the magnetic fluid sealing device can easily cause
Wenjuan Yu, Decai Li, Sifang Niu
semanticscholar   +1 more source

A magnetic fluid seal for rotary blood pumps: Behaviors of magnetic fluids in a magnetic fluid seal

Bio-Medical Materials and Engineering, 2013
A magnetic fluid (MF) seal has excellent durability. The performance of an MF seal, however, has been reported to decrease in liquids (several days). We have developed an MF seal that has a shield mechanism. The seal was perfect for 275 days in water.
Yoshinori, Mitamura, Tetsuya, Yano, Wataru, Nakamura, Eiji, Okamoto   +3 more
openaire   +2 more sources

Orthogonal Optimization Design and Finite Element Analysis of Converging Stepped Magnetic Fluid Seal

Journal of Magnetism, 2022
In order to better solve the problem of air leakage during compressor operation, based on the converging stepped magnetic fluid seal structure, the L 16 (4 4 ) orthogonal test design and the numerical simulation of the finite element method are combined ...
Fuxiang Hao, An-le Mu
semanticscholar   +1 more source

Experimental study on the critical pressure of divergent stepped magnetic fluid seal with a small clearance and single magnetic source

International Journal of Applied Electromagnetics and Mechanics, 2022
Herein, a divergent stepped magnetic fluid seal with a single magnetic source is designed to improve the pressure capability of ordinary magnetic fluid seal under small clearance.
Xiaolong Yang, Miao Shi, Ruibo Zhang, Shiying Zhou   +3 more
semanticscholar   +1 more source

Blood sealing properties of magnetic fluid seals

Tribology International, 2017
Abstract Shaft seals for rotary blood pumps have strong demands for low friction, very little leakage, and long-term use. Magnetic fluid seals have attracted attention as promising candidates for this purpose owing to their properties of having zero leakage, no wear, and relatively small viscous friction at the same time.
Jun Tomioka, Norifumi Miyanaga
openaire   +1 more source

Influence of Rheological Properties on the Starting Torque of Magnetic Fluid Seal

IEEE transactions on magnetics, 2021
In this article, the experimental investigation and analysis of the effect of rheological properties on the starting torque of the magnetic fluid seal are reported.
Yanhong Cheng, Decai Li, Zhenkun Li
semanticscholar   +1 more source

Sealing mechanism of magnetic fluids

Journal of Shanghai University (English Edition), 2006
Sealing is one of the most successful applications of magnetic fluids. However, the sealing pressure difference is not satisfactory. This paper theoretically analyzes the mechanism of magnetic fluids sealing. Main factors that have significant effects on the sealing ability include viscous stress on the interfacial surface, magnetic surface tension ...
Chu-wen Guo, Shi-cai Feng
openaire   +1 more source

TESTING THE CRITICAL VELOCITY OF A MAGNETIC FLUID SEAL WORKING IN A WATER ENVIRONMENT

Tribologia, 2022
Magnetic fluid seals are used in many applications, primarily in gas and vacuum environments. The unique properties of this type of seal are very low torque friction, high tightness, and almost unlimited durability. These parameters are also expected for
M. Szczęch, W. Horak
semanticscholar   +1 more source

Experimental Study on Divergent Magnetic Fluid Seal with Small Clearance and Double Magnetic Source

Journal of Magnetism, 2022
In order to solve the problem of poor sealing performance of rotating machinery under the condition of small clearance, a new type of divergent magnetic fluid seal device with small clearance and double magnetic source is designed in this paper.
Xiaolong Yang, C. Yang, Gang Liu
semanticscholar   +1 more source

Influence of temperature on the sealing mechanism and sealing performance for magnetic fluid seal with opposite pole teeth in different environments

The Physics of Fluids
To investigate the influence of temperature on the pressure transfer mechanism and failure mechanism for magnetic fluid seal (MFS) with opposite pole teeth (OPT), a sealing device with water circulation channel was designed.
Xiaolong Yang, Xuankai Dou, Yang Liu, Guojin Xie   +3 more
semanticscholar   +1 more source