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Metal laminate gasket with edge support beads

  • US 5,478,092 A
  • Filed: 03/10/1995
  • Issued: 12/26/1995
  • Est. Priority Date: 07/31/1992
  • Status: Expired due to Term
First Claim
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1. A metal laminate gasket for an internal combustion engine formed of a cylinder head and a cylinder block, comprising:

  • at least two metal plates laminated together and extending substantially throughout an entire area of the engine for constituting the metal laminate gasket, said gasket including two longitudinal edges, two lateral edges perpendicular to the longitudinal edges to form a rectangular shape, a plurality of cylinder bores arranged along a longitudinal direction of the gasket, and a plurality of bolt holes arranged to surround the cylinder bores, said gasket having lateral side portions, each being defined between the lateral edge and a line linking centers of bolt holes located adjacent to the lateral edge, andat least two edge support beads integrally formed in at least one of the two plates, at least one edge support bead being located in the lateral side portion to substantially support tightening pressure of the bolts applied to the lateral side portion, said bead having two end portions and a middle portion and being bent at the middle portion so that the end portions are located near the lateral edge and the middle portion is located near the cylinder bore for widely supporting the lateral side portion to thereby prevent deformation of the cylinder head and provide substantially equal tightening pressure around the entire cylinder bores.

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