Claims
- 1. A metallic cylinder-head gasket for an internal-combustion engine, the gasket comprising at least one elastic metal sheet including:
at least one opening depending on the number of combustion chambers in the internal-combustion engine; a bead in the at least one elastic metal sheet, around each opening at a distance from the opening, so that a straight section of metal sheet is left clear adjacent the edge of the opening; and a stopper projection associated with the bead; wherein the stopper projection comprises an elastomeric plastic with a high mineral filler content which has been surface-treated with a silane.
- 2. The cylinder-head gasket according to claim 1, wherein the elastomer is one of the group consisting of a fluororubber and fluorosilicone rubber.
- 3. The cylinder-head gasket according to claim 1, wherein the mixture has a plastic/filler ratio from 1:1 to 1:5.
- 4. The cylinder-head gasket according to claim 1, wherein the filler is silica flour.
- 5. The cylinder-head gasket according to claim 4, wherein the mass of silica flour is present in range of about 10 to 100% of the mass of the plastic.
- 6. The cylinder-head gasket according to claim 1, wherein the silane is one of the group consisting of an epoxysilane and an aminosilane.
- 7. The cylinder-head gasket according to claim 1, wherein the stopper projection is on said straight section of the metal sheet.
- 8. The cylinder-head gasket according to claim 11, wherein the stopper projection is in the form of a bead.
Priority Claims (1)
Number |
Date |
Country |
Kind |
100 19 715.9 |
Apr 2000 |
DE |
|
CROSS REFERENCE TO RELATED APPLICATIONS
[0001] This application is a Divisional application of U.S. application Ser. No. 09/838,965, filed Apr. 20, 2001, which claims the benefit of German Application No. 10019715.9, filed Apr. 20, 2000, the contents of each of which are incorporated herein by reference in their entirety.
Divisions (1)
|
Number |
Date |
Country |
Parent |
09838965 |
Apr 2001 |
US |
Child |
10769045 |
Jan 2004 |
US |