Patent ID: 7360768

Claim:
An intake gasket to be inserted between a cylinder head and a manifold, comprising: an intermediate rib member with a three-layer structure formed from a central thin metal plate and first and second rubber layers provided on first and second sides of the thin metal plate, respectively; first and second metal plates disposed on first and second sides of the intermediate rib member; and first and second elastic metal substrates disposed on an outer side of the first metal plate and an outer side of the second metal plate, respectively, the intermediate rib member including a first rib formed around the periphery thereof and a second rib around the periphery of a fluid passage hole, wherein a closed space is formed from the first rib and the second rib of the intermediate rib member and the first and second metal plates, such that the first rib and second rib bound the closed space in first and second directions, respectively, and the first and second metal plates bound the closed space in third and fourth directions, respectively.