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Title:
CYLINDER HEAD GASKET
Document Type and Number:
Japanese Patent JPH09166218
Kind Code:
A
Abstract:

To reduce a load on a full bead so as to increase durability by forming a half bead around a water hole around a cylinder bore in a metallic cylinder head gasket in which the full bead is arranged around the cylinder bore and also the half bead is arranged around the water hole.

A cylinder head gasket 11 is located between a cylinder block 10 and a cylinder head, and pressed by the cylinder head and cylinder block 10 when it is tightened by head bolts. Also the cylinder head gasket 11 is provided with a full bead 19 formed so that it surrounds each cylinder bore 17, a half bead 20 formed so that it envelopes the full bead 19 from the outside at a cylinder bore 12 side from a water hole 18, and a half bead 21 formed at a position opposite to the half bead 20 through the water hole 18. Thus a surface pressure produced on a gasket 11 when it is tightened by bolts is distributed into the full bead 19 and half bead 20 so as to reduce the maximum surface pressure.


Inventors:
NAKADA KAZUYA
SHINPO ZENICHI
Application Number:
JP32924695A
Publication Date:
June 24, 1997
Filing Date:
December 18, 1995
Export Citation:
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Assignee:
TOYOTA MOTOR CORP
International Classes:
F02F11/00; F16J15/08; (IPC1-7): F16J15/08; F02F11/00
Attorney, Agent or Firm:
Nobuo Tabuchi



 
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