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Edge seal for fuel cell stack assembly

Publisher
Elsevier Science
Year
2002
Tongue
English
Weight
146 KB
Volume
2002
Category
Article
ISSN
1350-4789

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โœฆ Synopsis

An apparatus and method for forming or repairing a well-bore casing, a pipeline, or a structural support is disclosed. An expandable tubular member is radially expanded and plastically deformed by an expansion cone that is displaced by hydraulic pressure. Before or after the radial expansion of the tubular member, a sliding sleeve valve within the apparatus permits a fluidic sealing material (which can be hardened) to be injected into an annulus between the expandable tubular member and a pre-existing structure.

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piston for operating a valve seat arrangement. This switches the compressed air flow between several external connectors. The control piston may be pressurized for axial positioning by means of at least one electromagnetic pilot valve housed in a pilot valve housing. The pilot valve housing is detac