Patent EP0459060A1 successfully refreshed from Google Patents.
EP0459060A1
Expired / Lapsed
EP
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Metallic gasket
Assignee: Japan Metal Gasket Co Ltd
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Filing: 1990-12-24
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Granted: —
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Expires: 2010-12-24
Abstract
Abstract A metallic gasket (1) according to the present invention includes two base plates (10-1)(10-2) made of an elastic material. One base plate (10-1)is provided with an array of beads (4) in association with an odd-numbered combustion chamber bore (3), only one end segments of which are provided with stoppers (11), while the other base plate (10-2) is provided with an array of beads (4) in association with an even-numbered combustion chamber bore (3), only one end segments of which are provided with stoppers (11).The base plates (10-1)(10-2) are then antisymmetrically laminated together.
Inventors
- 👤 Kosaku C/O Nihon Metal Gasket Co. Ltd. Ueta
- 👤 Ikkoh C/O Nihon Metal Gasket Co. Ltd. Ueta
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-03 12:44
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/02; F16J15/06; F16J15/08; F16J15/0818; F16J15/0825; F02; F02F; F02F11/00; F02F11/002; F16J2015/0837; F16J2015/085
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
136 words
A metallic gasket including a base plate which is made of an elastic metal plate and provided with an array of beads at its peripheral edge located in association with a combustion chamber bore, wherein: said base plate is divided into two parts, each of which is provided with an array of stepped beads, first stoppers are located on flat segments of a first array of stepped beads on the first base plate part, said flat segments being positioned in association with an odd-numbered cylinder, while second stoppers are located on flat segments of a second array of stepped beads on the second base plate part, said flat segments being positioned in association with an even-numbered cylinder, and said first and second base plate parts are antisymmetrically laminated together with said first and second stoppers outside.
Claim 2
Dependent Claim
34 words
A metallic gasket as claimed in Claim 1, wherein when said base plate parts are antisymmetrically laminated together, the bends of the respective stepped beads engage the centers of slopes of the associated beads.
Claim 3
Dependent Claim
43 words
A metallic gasket as claimed in Claim 1 or 1, wherein the length l₁ of said flat segments to be provided with said stoppers accounts for 30 % to 40 % inclusive of the full length l between the adjacent combustion chamber bores.
Claim 4
Dependent Claim
41 words
A metallic gasket as claimed in Claim 3, wherein l₁ > l₂ wherein l₁ is the length of the flat segments on which said stoppers are located and l₂ is the length of flat segments on which no stoppers are located.
Claim 5
Dependent Claim
128 words
A metallic gasket including two base plates made of an elastic metal, each of which is provided with an array of arched beads at the peripheral edge of its combustion chamber bore, wherein: said arched beads provided on the first base plate in association with an odd-numbered cylinder are displaced from the widthwise center between the adjacent cylinders in a predetermined direction to form flat segments on which stoppers are to be located, said arched beads provided on the second base plate in association with an even-numbered cylinder are displaced from the widthwise center between the adjacent cylinder in the direction counter to the first-mentioned direction to from flat segments on which stoppers are to be located, and said first and second base plates are antisymmetrically laminated together.
Claim 6
Dependent Claim
29 words
A metallic gasket as claimed in Claim 1, wherein said stoppers are formed by folding up and down a shim plate sandwiched between said first and second base plates.
Claim 7
Dependent Claim
34 words
A metallic gasket as claimed in Claim 5, wherein said stoppers are located on the upper and lower portions of both ends of an auxiliary plate sandwiched between said first and second base plates.
Claim 8
Dependent Claim
16 words
A metallic gasket as claimed in Claim 6 or 7, wherein said stoppers vary in thickness.
References Cited (Backward Citations)
EP0230804A2
Cited
EP0330126A2
Cited
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