... 08 09 2024 15 09 2024 © Emerald Publishing Limited 2024 Emerald Publishing Limited Licensed re-use rights only Gas face seal Spiral groove Vibration characteristics Separation phenomenon Three-mass kinematic model The classical kinematic model only focuses on the 3...

... speeds and sealing gaps, are obtained. Findings The annular groove (AG) can effectively reduce the temperature, and the T-type spiral groove (STG) can effectively inhibit the leakage. The increase of pressure and rotational speed leads to the enhancement of dynamic pressure effect and the increase...

...Penggao Zhang; Fei Feng; Xiu Feng; Long Wei Purpose Magnetic fluid has excellent function used as lubricants in bearings and mechanical seals, and the purpose of this study is to investigate the sealing performance in a spiral groove mechanical seal lubricated by magnetic fluid. Design...

...Hengjie Xu; Yinggang Yue; Pengyun Song; Wenyuan Mao; Qiangguo Deng; Xuejian Sun Purpose This study aims to acquire the influence mechanism of gas film adaptive adjustment (GFAA) acted on the dynamic characteristics of spiral groove dry gas seal (S-DGS) and then propose a sealing stability...

...Xiao-Ying Li; Zhen-Tao Li; Mu-Ming Hao; Qing-Yang Wang; Zeng-Li Wang Purpose The purpose of this paper is to investigate the hydrodynamic performance of liquid film seals with oblique grooves (OGs) and spiral grooves (SGs), considering cavitation, compare and analyze the differences between them...

... of the magnetic field strength, thus changes from a free-flowing fluid to semisolid (Katiyar et al., 2012). MRF spiral grooved mechanical seal is a new type of seal with a number of spiral grooves on the rotating ring or stationary ring, which makes the seal gaps form convergent gaps. When...

... of micro-spiral grooves are designed on the contact surface of rubber seal so as to obtain a continuous dynamic pressure difference. Findings The result is that the distribution of the gas film in the micro-gap is continuous under the design of the spiral grooves and the contact with eccentricity...

...Penggao Zhang; Boqin Gu; Jianfeng Zhou; Long Wei Purpose The purpose of this study is to investigate the heat transfer characteristics in a spiral groove mechanical seal lubricated by magnetic fluid. Design/methodology/approach The viscosity relationship of magnetic fluid in external...

...Penggao Zhang; Boqin Gu; Jianfeng Zhou; Long Wei Purpose The purpose of this study is to investigate the hydrodynamic lubrication characteristics of ferrofluid film for spiral groove mechanical seal in external electromagnetic field and to analyze the effects of the volume fraction of ferrofluid...

... morphology, one is the radial direction perpendicular to the spiral ridges and the other is the circumferential direction along the spiral groove. Based on the microgeometry characteristics of spiral morphology, the micromorphology of turning flange surface is simplified for the calculation of leakage rate...