NDLI: Design and Experimental Study on the Controllable High-Speed Spiral Groove Face Seals

Content Provider	Springer Nature Link
Author	Zhang, Guo yuan Zhao, Wei gang
Copyright Year	2014
Abstract	The spiral groove face seal is a prime candidate for application of the liquid oxygen and liquid hydrogen turbopump. The study investigated the designs of the electro-magnetic loading device (EMLD) and friction torque testing device (FTTD), and their application in the interface experiments of face seals with spiral grooves which used water as the sealing fluid. The seal performance parameters, including face temperature, face friction torque, film pressure at the seal dam, were measured under the static balance position, and the effects of the face closing force, which varied with the axial load generated from the EMLD, on the seal performance were tested under a specific controlled mode. The result indicated that both the pressure at the seal dam and face temperature increased with the rotating speed and that small friction was obtained when the face seal was fully film-lubricated. The separation speed of the controllable seal could also be controlled, which helped seal faces lift off and met the conditions of the face noncontact status. Additionally, with the application of the EMLD and FTTD, seal operation monitoring was rendered possible and a controllable face seal with desirable performance was achieved. The findings of the current study lend great insights into engineering seal design and its applications.
Starting Page	497
Ending Page	509
Page Count	13
File Format	PDF
ISSN	10238883
Journal	Tribology Letters
Volume Number	53
Issue Number	2
e-ISSN	15732711
Language	English
Publisher	Springer US
Publisher Date	2014-01-05
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Face seals Mechanical seals Hydrodynamic friction Rocket engines Hydrostatic lubrication Tribology, Corrosion and Coatings Surfaces and Interfaces, Thin Films Theoretical and Applied Mechanics Physical Chemistry Nanotechnology
Content Type	Text
Resource Type	Article
Subject	Surfaces, Coatings and Films Mechanics of Materials Mechanical Engineering Surfaces and Interfaces

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