Seals for fuel cells and fuel-cell stacks

• Publisher: Elsevier Science
• Year: 2003
• Tongue: English
• Weight: 136 KB
• Volume: 2003
• Category: Article
• ISSN: 1350-4789
• DOI: 10.1016/s1350-4789(03)01034-1

✦ Synopsis

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 detachably connected to the relay valve housing by means of a seal arrangement, which is embodied as an essentially annular combination seal element between the relay valve housing and the pilot valve housing with a seal section on the external radius for static sealing of the housing, and a seal section on the internal radius for dynamic sealing of the control piston.