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1. (WO2015113711) CYLINDER-HEAD SEAL, AND A SEALING SYSTEM COMPRISING SUCH A SEAL

Pub. No.:    WO/2015/113711    International Application No.:    PCT/EP2014/078697
Publication Date: Fri Aug 07 01:59:59 CEST 2015 International Filing Date: Sat Dec 20 00:59:59 CET 2014
IPC: F16J 15/08
Applicants: ELRINGKLINGER AG
Inventors: BRAUN, Matthias
Title: CYLINDER-HEAD SEAL, AND A SEALING SYSTEM COMPRISING SUCH A SEAL
Abstract:
Cylinder-head seal having a plurality of combustion-chamber openings (18, 20, 22, 24), fluid-passage openings (28), screw holes (26) and at least a first functional layer (12, 14) and a carrier layer (16), wherein the functional layer (12) has combustion-chamber-sealing beads (32), which enclose the combustion-chamber openings, and, on that side of the combustion-chamber sealing beads (32) which is directed away from the combustion-chamber openings, and at a distance from said beads, at least one fluid-sealing bead (34), which is configured in the form of a half-bead and has a first bead foot (40), which can be pressed against the carrier layer (16), and a second bead foot (42), which is spaced apart from the first bead foot by the bead width (B2), and wherein, at least in some regions adjacent to screw holes (26), the carrier layer (16) has on its first layer side, which is directed towards the first functional layer (12), at least one shallow depression (50), which extends along the first bead foot (40) and is of such a width (B3) that only a strip-form region of the first functional layer (12) is located above the depression (50) and, of the half-bead (34), said strip-form region contains only the first bead foot (40) thereof and, at most, half the bead width.