Patent ID: 6758479
Filing Date: 2004-07-06
Classification: F16J

Abstract:
A cylinder head gasket for an internal combustion engine having a cylinder head and a cylinder block, comprising:a first metal plate extending substantially throughout an entire area to be sealed and having a first hole corresponding to the cylinder bore, a second hole for the fluid hole, and a plurality of first connecting portions extending toward the first hole from an edge thereof, said first metal plate being formed of a spring material, a grommet situated in the first hole to have a space with respect to the first metal plate, said grommet defining a third hole for the cylinder bore and formed of a second metal plate made of an annealed material different from the first metal plate, said grommet having an upper portion, a lower portion, a curved portion formed between the upper and lower portions to define the third hole, and a plurality of second connecting portions extending outwardly from the upper portion of the grommet, said second connecting portions being connected to the first connecting portions, and a third metal plate piled with the first metal plate to constitute a base together with the first metal plate.