WO2012046718A1 - Cylinder head gasket - Google Patents

Cylinder head gasket Download PDF

Info

Publication number
WO2012046718A1
WO2012046718A1 PCT/JP2011/072840 JP2011072840W WO2012046718A1 WO 2012046718 A1 WO2012046718 A1 WO 2012046718A1 JP 2011072840 W JP2011072840 W JP 2011072840W WO 2012046718 A1 WO2012046718 A1 WO 2012046718A1
Authority
WO
WIPO (PCT)
Prior art keywords
gasket
cylinder head
bead
combustion chamber
intermediate plate
Prior art date
Application number
PCT/JP2011/072840
Other languages
French (fr)
Japanese (ja)
Inventor
智義 魚返
清位　栄夫
正樹 千葉
吉島　一也
Original Assignee
日本ガスケット株式会社
トヨタ自動車株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 日本ガスケット株式会社, トヨタ自動車株式会社 filed Critical 日本ガスケット株式会社
Priority to BR112013008115-5A priority Critical patent/BR112013008115B1/en
Priority to CN201180048025.3A priority patent/CN103154487B/en
Publication of WO2012046718A1 publication Critical patent/WO2012046718A1/en

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/02—Sealings between relatively-stationary surfaces
    • F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
    • F16J15/08—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with exclusively metal packing
    • F16J15/0818—Flat gaskets
    • F16J15/0825—Flat gaskets laminated
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/02—Sealings between relatively-stationary surfaces
    • F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
    • F16J15/08—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with exclusively metal packing
    • F16J15/0818—Flat gaskets
    • F16J2015/085—Flat gaskets without fold over
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/02—Sealings between relatively-stationary surfaces
    • F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
    • F16J15/08—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with exclusively metal packing
    • F16J15/0818—Flat gaskets
    • F16J2015/0862—Flat gaskets with a bore ring

Definitions

  • the present invention relates to a cylinder head gasket, and more particularly to a cylinder head gasket having a gasket substrate having a plurality of combustion chamber holes and a full bead surrounding the combustion chamber holes.
  • the present invention provides a cylinder head gasket capable of preventing a coolant from flowing between the full bead and the full bead when the full bead and the full bead are separated from each other. Is.
  • the cylinder head gasket according to claim 1 includes a plurality of combustion chamber holes formed in accordance with the position of the cylinder bore and a pair of gasket substrates formed with a full bead surrounding each combustion chamber hole, and the pair of gasket substrates.
  • the water hole is formed in accordance with the position of the coolant passage formed in the cylinder block on the gasket substrate and the intermediate plate, and the adjacent full bead and the full bead are formed at positions separated from each other.
  • the shim plate is provided at a position where it overlaps with the full bead
  • a first half bead is provided at a position that surrounds the plurality of full beads on the gasket substrate and does not overlap with the shim plate
  • the first half bead is provided so that the water hole is located outside the region surrounded by the first half bead, and the first half bead is disposed at the position where the combustion chamber hole and the combustion chamber hole are close to each other. It is characterized in that it is formed so as to be separated with a center line connecting the centers of each other.
  • the cylinder head gasket of the first aspect it is possible to prevent the coolant from flowing into the region surrounded by the first half bead, and damage to the coating due to the evaporation of the coolant between the full beads. Can be prevented.
  • the expanded sectional view of the II-II part in FIG. The expanded sectional view of the III-III part in FIG.
  • FIG. 1 to 3 show a cylinder head gasket 1 according to the first embodiment
  • FIG. 1 is a plan view of the cylinder head gasket 1
  • FIG. 2 is a sectional view taken along a line II-II in FIG. 3 is a cross-sectional view
  • FIG. 3 is a cross-sectional view taken along the line III-III in FIG.
  • the cylinder head gasket 1 includes a pair of gasket substrates 4 and 5 in contact with the cylinder head 2 and the cylinder block 3, an intermediate plate 6 interposed between the pair of gasket substrates 4 and 5, and the cylinder head 2.
  • a shim plate 7 interposed between the gasket substrate 4 on the side and the intermediate plate 6 is provided.
  • the gasket substrates 4 and 5 and the intermediate plate 6 are manufactured by SUS301-H, and the plate thicknesses thereof are set to be the same. In this embodiment, the plate thickness is about 0.2 mm. The entire upper and lower surfaces of the gasket substrates 4 and 5 are coated with a coating of about 25 ⁇ m (not shown) made of a resin such as fluorine or nitrile to prevent stickiness and improve sealing performance.
  • the shim plate 7 is manufactured by SUS304-1 / 2, and the thickness of the shim plate 7 is about half that of the gasket substrates 4 and 5 and the intermediate plate 6.
  • a combustion chamber hole 8 formed at a position of a cylinder bore 3a formed in the cylinder block 3 and a fastening bolt (not shown) are inserted into the gasket substrates 4, 5 and the intermediate plate 6.
  • a plurality of bolt holes 9, a plurality of water holes 10 for circulating the coolant, and an oil hole 11 for circulating the lubricating oil are formed.
  • the two water holes 10 positioned between the adjacent combustion chamber holes 8 connect the center of the adjacent combustion chamber hole 8 and the center of the combustion chamber hole 8. It is formed so as to be aligned in a direction orthogonal to the center line C.
  • the cylinder head 2 and the cylinder block 3 are respectively formed with coolant passages 2a and 3b through which coolant flows in positions corresponding to the two water holes 10, and the coolant passage 2a on the cylinder head 2 side is formed.
  • FIG. 1 shows only the coolant passages 2 a and 3 b corresponding to the two water holes 10 provided between the combustion chamber hole 8 and the combustion chamber hole 8. Cooling fluid passages 2a and 3b (not shown) are also formed at corresponding positions.
  • the intermediate plate 6 is a flat plate member having the same planar shape as the gasket substrates 4 and 5, and the water hole 10, the oil hole 11, and the like are drilled. 5a, the first half beads 4b and 5b, and the second half beads 4c and 5c are not formed.
  • the shim plate 7 is a ring-shaped member surrounding the combustion chamber hole 8 and is provided in each combustion chamber hole 8 and is fixed to the intermediate plate 6 by means such as laser welding.
  • the inner peripheral end of the shim plate 7 is formed to have the same diameter as the combustion chamber hole 8 of the intermediate plate 6 so as to constitute the combustion chamber hole 8, and the outer peripheral end is formed in the gasket substrates 4 and 5 as will be described in detail later.
  • the first half beads 4b and 5b are provided so as not to overlap with each other. With such a configuration, a gap is formed between the shim plate 7 and the shim plate 7 at a position where the adjacent combustion chamber holes 8 are close to each other.
  • the pair of gasket substrates 4 and 5 are respectively provided with annular full beads 4a and 5a that endlessly surround each combustion chamber hole 8, and first half beads 4b that endlessly surround these full beads 4a and 5a.
  • 5b and second half beads 4c and 5c formed along the outer edges of the gasket substrates 4 and 5 are formed.
  • solid lines indicating the full beads 4a and 5a indicate ridge lines at the tops of the full beads 4a and 5a
  • solid lines indicating the first and second half beads 4b, 5b, 4c and 5c are intermediate plates 6 in these half beads.
  • An intermediate portion between the base portion on the side and the base portion on the cylinder block 3 or cylinder head 2 side is shown.
  • the full bead 4 a of the gasket substrate 4 on the cylinder head 2 side protrudes toward the cylinder head 2, and its inner peripheral side and outer peripheral side bases overlap with the shim plate 7.
  • the full bead 5a of the gasket substrate 5 on the cylinder block 3 side protrudes toward the cylinder block 3, and the inner peripheral side and the outer peripheral base are fixed to the shim plate 7 from the back side of the intermediate plate 6. It has come to polymerize.
  • the adjacent cylinder bores 3a are separated from each other. Therefore, the flat portions 4d, 5d are provided between the full beads 4a, 5a and the full beads 4a, 5a in the gasket substrates 4, 5. Is to be formed.
  • the first half beads 4b and 5b will be described.
  • the first half bead 4b provided on the gasket substrate 4 on the cylinder head 2 side will be described and provided on the gasket substrate 5 on the cylinder block 3 side having the same configuration.
  • the description of the first half bead 5b is omitted.
  • the first half bead 4b is formed so as to endlessly surround all the full beads 4a surrounding the combustion chamber holes 8 formed in the gasket substrate 4, and the combustion chamber holes 8 and the combustion chamber holes 8 are formed. In the approached position, the first half beads 4b are formed so as to be separated with the center line C interposed therebetween.
  • the first half bead 4b is provided so that the water hole 10 is located outside the region surrounded by the first half bead 4b, and the coolant passage 2a provided in the cylinder head 2 and the cylinder block 3 is provided. 3b are provided at positions that do not overlap with 3b.
  • the portion of the first half bead 4b located between the combustion chamber hole 8 and the combustion chamber hole 8 is between the two water holes 10 provided in the direction perpendicular to the center line C. Since it passes, the said part has the shape narrower than the other part, and the said part has the smooth shape which combined the curve.
  • the inner edge of the first half bead 4b on the shim plate 7 side protrudes away from the intermediate plate 6, and the outer edge is located on the intermediate plate 6 side so as to come into contact with the intermediate plate 6. Yes. Further, the inner peripheral edge of the first half bead 4b on the shim plate 7 side is formed so as not to overlap with the outer peripheral end of the shim plate 7, and the first half bead 4b shown in FIG. In the formed portion, the state of being separated from the outer peripheral edge of the shim plate 7 by about 1 mm is maintained.
  • the second half beads 4c and 5c surround the combustion chamber hole 8, the full beads 4a and 5a, and the first half beads 4b and 5b, and are formed along the outer edges of the gasket substrates 4 and 5. Specifically, as shown in FIG. 1, it is formed so as to surround the water hole 10 arranged around the first half beads 4b and 5b, and passes between the water hole 10 and the bolt hole 9. Is formed.
  • the second half beads 4 c and 5 c protrude in a direction in which the outer peripheral edge is separated from the intermediate plate 6, and the inner peripheral edge is located on the intermediate plate 6 side so as to contact the intermediate plate 6.
  • the cylinder head gasket 1 has a configuration in which a plurality of full beads 4a and 5a surrounding a plurality of combustion chamber holes 8 are surrounded endlessly by the first half beads 4b and 5b.
  • the first half beads 4b and 5b are elastically deformed to come into close contact with the cylinder head 2 and the cylinder block 3, thereby making the first half beads 4b and 5b more tightly coupled.
  • the region formed on the combustion chamber hole 8 side is partitioned from the outside.
  • the water hole 10 is provided outside the region surrounded by the first half beads 4b and 5b, the water hole 10 flows between the cylinder head 2 and the cylinder block 3 through the water hole 10.
  • the coolant is prevented from flowing into the region on the combustion chamber hole 8 side by the first half beads 4b and 5b.
  • the first half beads 4b and 5b are provided so as not to overlap the openings of the coolant passages 2a and 3b formed in the cylinder head 2 and the cylinder block 3, it is possible to prevent the coolant from flowing into the region. Is possible.
  • the first half beads 4b and 5b are provided outside the shim plate 7 so as not to overlap with the shim plate 7.
  • FIGS. 4 to 6 show the cylinder head gasket 1 in the second to fourth embodiments, and each show a cross-sectional view at the same position as the II-II portion in FIG. Note that members common to the first embodiment are described using the same reference numerals, and description of common portions is omitted.
  • the cylinder head gasket 1 of the second embodiment shown in FIG. 4 has a configuration in which the protruding directions of the first half beads 4b and 5b and the second half beads 4c and 5c are opposite to the cylinder head gasket 1 of the first embodiment. have.
  • the inner peripheral side of the first half beads 4b and 5b on the shim plate 7 side protrudes toward the intermediate plate 6, and the outer peripheral side protrudes toward the cylinder block 3 and the cylinder head 2 side.
  • the projecting directions of the first half beads 5b and the second half beads 5c provided on the gasket substrate 5 on the cylinder block 3 side are opposite to those of the first embodiment.
  • a third half bead 6 a is formed on the intermediate plate 6 at the same position as the first half beads 4 b and 5 b of the gasket substrates 4 and 5.
  • the cylinder head gasket 1 of the fourth embodiment shown in FIG. 6 projects in the opposite direction to the first embodiment with respect to the first half beads 5b and the second half beads 5c provided on the gasket substrate 5 on the cylinder block 3 side.
  • a second intermediate plate 12 provided with a third half bead 12a is interposed between the gasket substrate 5 and the intermediate plate 6 on the cylinder block 3 side.
  • the projecting direction of the first half beads 4b and 5b and the configuration in which the third half beads 6a and 12a are provided on the intermediate plate 6 and the second intermediate plate 12 can be appropriately combined, and the first to fourth embodiments described above. It is not limited to the configuration of
  • the shim plate 7 in each of the above embodiments is an independent ring-shaped member that surrounds each combustion chamber hole 8, but the adjacent combustion chamber holes 8 and the combustion chamber holes 8 are in close proximity to each other. It is good also as a shim board which consists of one member connected to. Even in this case, it is necessary to provide the first half beads 4b and 5b at positions where they do not overlap with the shim plate so that an excessive load does not act on the first half beads 4b and 5b.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gasket Seals (AREA)

Abstract

A cylinder head gasket (1) comprising: a pair of gasket base sheets (4, 5) including combustion chamber holes (8) and full beads (4a, 5a) surrounding the combustion chamber holes (8); a intermediate sheet (6) disposed between the pair of gasket base sheets; and a shim sheet (7) disposed between the intermediate sheet and one of the gasket base sheets. The shim sheet (7) is positioned over the full beads, and first half beads (4b, 5b) are formed on the gasket base sheets at locations such that the first half beads (4b, 5b) surround the full beads and are not positioned over the shim sheet. A water hole (10) is formed outside a region surrounded by the first half beads, and furthermore the first half beads are spaced apart from each other at locations close to the combustion chamber holes in a state where a centerline connecting the centers of the combustion holes is disposed between the first half beads. A cooling liquid is not allowed to flow into the spaces between neighboring full beads so as to prevent the separation of a coating.

Description

シリンダヘッドガスケットCylinder head gasket
　本発明はシリンダヘッドガスケットに関し、詳しくは複数の燃焼室孔および該燃焼室孔を囲繞するフルビードを備えたガスケット基板を有するシリンダヘッドガスケットに関する。 The present invention relates to a cylinder head gasket, and more particularly to a cylinder head gasket having a gasket substrate having a plurality of combustion chamber holes and a full bead surrounding the combustion chamber holes.
　従来、シリンダボアの位置にあわせて形成した複数の燃焼室孔および各燃焼室孔を囲繞するフルビードが形成された一対のガスケット基板と、上記一対のガスケット基板の間に介装された中間板と、上記燃焼室孔を囲繞するとともに上記中間板と一方のガスケット基板との間に介装されたシム板とを備えたシリンダヘッドガスケットが知られている。
　このようなシリンダヘッドガスケットとして、シリンダブロックに形成された冷却液通路の位置にあわせて水孔が形成され、さらに隣接する上記フルビードとフルビードとが相互に離隔した位置に形成されたものが知られている（特許文献１）。 Conventionally, a plurality of combustion chamber holes formed according to the position of the cylinder bore and a pair of gasket substrates formed with full beads surrounding each combustion chamber hole, an intermediate plate interposed between the pair of gasket substrates, A cylinder head gasket is known which surrounds the combustion chamber hole and includes a shim plate interposed between the intermediate plate and one gasket substrate.
As such a cylinder head gasket, a water hole is formed in accordance with the position of the coolant passage formed in the cylinder block, and the adjacent full beads and full beads are formed at positions separated from each other. (Patent Document 1).
国際公開２００８－０８４７１８号公報International Publication No. 2008-084718
　上記特許文献１のように、フルビードとフルビードとが相互に離隔している場合、シリンダヘッドガスケットをシリンダブロックとシリンダヘッドとによって挟持すると、フルビードとフルビードとの間の面圧が十分に得られないことがある。
　その場合、上記水孔よりシリンダヘッドとシリンダブロックとの間に流入した冷却液がフルビードとフルビードとの間に流入し、上記シリンダボアからの伝熱によって冷却液が蒸発すると、上記ガスケット基板に塗布したコーティングが損傷してしまうという問題があった。
　このような問題に鑑み、本発明はフルビードとフルビードとが相互に離隔している場合において、これらフルビードとフルビードとの間への冷却液の流入を阻止することが可能なシリンダヘッドガスケットを提供するものである。 When the full bead and the full bead are separated from each other as in Patent Document 1, if the cylinder head gasket is sandwiched between the cylinder block and the cylinder head, the surface pressure between the full bead and the full bead cannot be sufficiently obtained. Sometimes.
In that case, the coolant flowing between the cylinder head and the cylinder block from the water hole flows between the full beads and the full beads, and when the coolant is evaporated by heat transfer from the cylinder bore, the coolant is applied to the gasket substrate. There was a problem that the coating was damaged.
In view of such a problem, the present invention provides a cylinder head gasket capable of preventing a coolant from flowing between the full bead and the full bead when the full bead and the full bead are separated from each other. Is.
　すなわち請求項１おけるシリンダヘッドガスケットは、シリンダボアの位置にあわせて形成した複数の燃焼室孔および各燃焼室孔を囲繞するフルビードが形成された一対のガスケット基板と、上記一対のガスケット基板の間に介装された中間板と、上記燃焼室孔を囲繞するとともに上記中間板と一方のガスケット基板との間に介装されたシム板とを備え、
　上記ガスケット基板および中間板にシリンダブロックに形成された冷却液通路の位置にあわせて水孔を形成するとともに、隣接する上記フルビードとフルビードとを相互に離隔した位置に形成したシリンダヘッドガスケットにおいて、
　上記シム板を上記フルビードと重合する位置に設け、
　さらに上記ガスケット基板に上記複数のフルビードを囲繞するとともに上記シム板と重合しない位置に第１ハーフビードを設け、
　該第１ハーフビードを、上記水孔が上記第１ハーフビードによって囲繞された領域の外側に位置するように設けるとともに、燃焼室孔と燃焼室孔とが接近した位置において、第１ハーフビードを燃焼室孔の中心同士を結んだ中心線を挟んで離隔するように形成したことを特徴としている。 In other words, the cylinder head gasket according to claim 1 includes a plurality of combustion chamber holes formed in accordance with the position of the cylinder bore and a pair of gasket substrates formed with a full bead surrounding each combustion chamber hole, and the pair of gasket substrates. An intermediate plate interposed, and a shim plate surrounding the combustion chamber hole and interposed between the intermediate plate and one gasket substrate,
In the cylinder head gasket in which the water hole is formed in accordance with the position of the coolant passage formed in the cylinder block on the gasket substrate and the intermediate plate, and the adjacent full bead and the full bead are formed at positions separated from each other.
The shim plate is provided at a position where it overlaps with the full bead,
Furthermore, a first half bead is provided at a position that surrounds the plurality of full beads on the gasket substrate and does not overlap with the shim plate,
The first half bead is provided so that the water hole is located outside the region surrounded by the first half bead, and the first half bead is disposed at the position where the combustion chamber hole and the combustion chamber hole are close to each other. It is characterized in that it is formed so as to be separated with a center line connecting the centers of each other.
　上記請求項１のシリンダヘッドガスケットによれば、上記第１ハーフビードによって囲繞された領域への冷却液の流入を阻止することができ、フルビードとフルビードとの間での冷却液の蒸発によるコーティングの損傷を防止することができる。 According to the cylinder head gasket of the first aspect, it is possible to prevent the coolant from flowing into the region surrounded by the first half bead, and damage to the coating due to the evaporation of the coolant between the full beads. Can be prevented.
第１実施例を示すシリンダヘッドガスケットの平面図。The top view of the cylinder head gasket which shows 1st Example. 図１におけるＩＩ―ＩＩ部の拡大断面図。The expanded sectional view of the II-II part in FIG. 図１におけるＩＩＩ―ＩＩＩ部の拡大断面図。The expanded sectional view of the III-III part in FIG. 第２実施例を示すシリンダヘッドガスケットの断面図。Sectional drawing of the cylinder head gasket which shows 2nd Example. 第３実施例を示すシリンダヘッドガスケットの断面図。Sectional drawing of the cylinder head gasket which shows 3rd Example. 第４実施例を示すシリンダヘッドガスケットの断面図。Sectional drawing of the cylinder head gasket which shows 4th Example.
　以下図示実施例について説明すると、図１ないし図３は第１実施例にかかるシリンダヘッドガスケット１を示し、図１はシリンダヘッドガスケット１の平面図を、図２は図１におけるＩＩ―ＩＩ部の断面図を、図３は図１におけるＩＩＩ―ＩＩＩ部の断面図をそれぞれ示している。
　上記シリンダヘッドガスケット１は、シリンダヘッド２およびシリンダブロック３に当接する１対のガスケット基板４，５と、該一対のガスケット基板４，５の間に介装された中間板６と、シリンダヘッド２側のガスケット基板４と上記中間板６との間に介装されたシム板７とを備えている。
　これらガスケット基板４，５および中間板６はＳＵＳ３０１－Ｈにより製造され、これらの板厚は同一に設定され、本実施例ではそれぞれ約０．２ｍｍの板厚となっている。また上記ガスケット基板４，５の上面と下面の全域には、ヘタリ防止やシール性向上のため、フッ素、ニトリル系等の樹脂からなる約２５μｍのコーティングが施されている（図示せず）。
　一方、上記シム板７はＳＵＳ３０４-１／２により製造され、該シム板７の板厚はガスケット基板４，５および中間板６の半分程度の厚さになっている。 1 to 3 show a cylinder head gasket 1 according to the first embodiment, FIG. 1 is a plan view of the cylinder head gasket 1, and FIG. 2 is a sectional view taken along a line II-II in FIG. 3 is a cross-sectional view, and FIG. 3 is a cross-sectional view taken along the line III-III in FIG.
The cylinder head gasket 1 includes a pair of gasket substrates 4 and 5 in contact with the cylinder head 2 and the cylinder block 3, an intermediate plate 6 interposed between the pair of gasket substrates 4 and 5, and the cylinder head 2. A shim plate 7 interposed between the gasket substrate 4 on the side and the intermediate plate 6 is provided.
The gasket substrates 4 and 5 and the intermediate plate 6 are manufactured by SUS301-H, and the plate thicknesses thereof are set to be the same. In this embodiment, the plate thickness is about 0.2 mm. The entire upper and lower surfaces of the gasket substrates 4 and 5 are coated with a coating of about 25 μm (not shown) made of a resin such as fluorine or nitrile to prevent stickiness and improve sealing performance.
On the other hand, the shim plate 7 is manufactured by SUS304-1 / 2, and the thickness of the shim plate 7 is about half that of the gasket substrates 4 and 5 and the intermediate plate 6.
　また図１に示すように、上記ガスケット基板４，５および中間板６には、シリンダブロック３に形成されたシリンダボア３ａの位置に形成された燃焼室孔８と、図示しない締結ボルトを挿通するための複数のボルト孔９と、冷却液を流通させるための複数の水孔１０と、潤滑油を流通させるための油孔１１とが穿設されている。
　上記水孔１０のうち、隣接する燃焼室孔８と燃焼室孔８との間に位置する２つの水孔１０は、隣接する燃焼室孔８の中心と燃焼室孔８の中心とを結んだ中心線Ｃに対して直交する方向に整列するように形成されている。
　そしてシリンダヘッド２およびシリンダブロック３には、この２つの水孔１０に対応する位置に、冷却液を流通させる冷却液通路２ａ、３ｂがそれぞれ形成されており、シリンダヘッド２側の冷却液通路２ａは、該シリンダヘッド２の下面に水孔１０よりも若干大径の開口部を有し、シリンダブロック３側の冷却液通路３ｂはシリンダブロック３の上面にシリンダヘッド２側の冷却液通路２ａよりもさらに大径の開口部を有している（図１、図２参照）。
　なお図１には上記燃焼室孔８と燃焼室孔８との間に設けられた２つの水孔１０に対応する冷却液通路２ａ、３ｂのみを図示しているが、その他の水孔１０に対応する位置にもそれぞれ図示しない冷却液通路２ａ、３ｂが形成されている。 Further, as shown in FIG. 1, a combustion chamber hole 8 formed at a position of a cylinder bore 3a formed in the cylinder block 3 and a fastening bolt (not shown) are inserted into the gasket substrates 4, 5 and the intermediate plate 6. A plurality of bolt holes 9, a plurality of water holes 10 for circulating the coolant, and an oil hole 11 for circulating the lubricating oil are formed.
Of the water holes 10, the two water holes 10 positioned between the adjacent combustion chamber holes 8 connect the center of the adjacent combustion chamber hole 8 and the center of the combustion chamber hole 8. It is formed so as to be aligned in a direction orthogonal to the center line C.
The cylinder head 2 and the cylinder block 3 are respectively formed with coolant passages 2a and 3b through which coolant flows in positions corresponding to the two water holes 10, and the coolant passage 2a on the cylinder head 2 side is formed. Has a slightly larger diameter opening than the water hole 10 on the lower surface of the cylinder head 2, and the coolant passage 3 b on the cylinder block 3 side is closer to the upper surface of the cylinder block 3 than the coolant passage 2 a on the cylinder head 2 side. Has a larger-diameter opening (see FIGS. 1 and 2).
FIG. 1 shows only the coolant passages 2 a and 3 b corresponding to the two water holes 10 provided between the combustion chamber hole 8 and the combustion chamber hole 8. Cooling fluid passages 2a and 3b (not shown) are also formed at corresponding positions.
　最初に、上記中間板６は上記ガスケット基板４，５と平面形状が同形に形成された平板状の部材であり、上記水孔１０や油孔１１等が穿設されるものの、下記フルビード４ａ、５ａ、第１ハーフビード４ｂ，５ｂ、第２ハーフビード４ｃ、５ｃは形成されていない。
　上記シム板７は、燃焼室孔８を囲繞するリング状の部材であって、各燃焼室孔８に設けられるとともに上記中間板６にレーザ溶接などの手段によって固定されるようになっている。
　シム板７の内周端は上記燃焼室孔８を構成するよう中間板６の燃焼室孔８と同径に穿設され、外周端は後に詳述するように上記ガスケット基板４，５に形成された第１ハーフビード４ｂ，５ｂと重合しない位置まで設けられている。
　このような構成により、隣接する燃焼室孔８と燃焼室孔８とが接近した位置においては、シム板７とシム板７との間に間隙が形成されるようになっている。 First, the intermediate plate 6 is a flat plate member having the same planar shape as the gasket substrates 4 and 5, and the water hole 10, the oil hole 11, and the like are drilled. 5a, the first half beads 4b and 5b, and the second half beads 4c and 5c are not formed.
The shim plate 7 is a ring-shaped member surrounding the combustion chamber hole 8 and is provided in each combustion chamber hole 8 and is fixed to the intermediate plate 6 by means such as laser welding.
The inner peripheral end of the shim plate 7 is formed to have the same diameter as the combustion chamber hole 8 of the intermediate plate 6 so as to constitute the combustion chamber hole 8, and the outer peripheral end is formed in the gasket substrates 4 and 5 as will be described in detail later. The first half beads 4b and 5b are provided so as not to overlap with each other.
With such a configuration, a gap is formed between the shim plate 7 and the shim plate 7 at a position where the adjacent combustion chamber holes 8 are close to each other.
　次に、上記一対のガスケット基板４，５には、それぞれ各燃焼室孔８を無端状に囲繞する環状のフルビード４ａ、５ａと、これらフルビード４ａ、５ａを無端状に囲繞する第１ハーフビード４ｂ，５ｂと、ガスケット基板４，５の外縁部に沿って形成された第２ハーフビード４ｃ、５ｃとが形成されている。
　なお図１において、上記フルビード４ａ、５ａを示す実線は、該フルビード４ａ、５ａの頂部の稜線を示し、第１、第２ハーフビード４ｂ、５ｂ、４ｃ、５ｃを示す実線はこれらハーフビードにおける中間板６側の基部とシリンダブロック３またはシリンダヘッド２側の基部との中間部分を示している。
　シリンダヘッド２側のガスケット基板４のフルビード４ａは、シリンダヘッド２に向けて突出するとともに、その内周側および外周側の基部が上記シム板７に重合するようになっている。
　一方、シリンダブロック３側のガスケット基板５のフルビード５ａは、シリンダブロック３に向けて突出するとともに、内周側および外周側の基部が中間板６の裏面側より上記シム板７の固定された範囲に重合するようになっている。
　そして本実施例のエンジンの場合、隣接するシリンダボア３ａとが相互に離隔しており、このためガスケット基板４、５におけるフルビード４ａ、５ａとフルビード４ａ、５ａとの間には、平坦部４ｄ、５ｄが形成されるようになっている。 Next, the pair of gasket substrates 4 and 5 are respectively provided with annular full beads 4a and 5a that endlessly surround each combustion chamber hole 8, and first half beads 4b that endlessly surround these full beads 4a and 5a. 5b and second half beads 4c and 5c formed along the outer edges of the gasket substrates 4 and 5 are formed.
In FIG. 1, solid lines indicating the full beads 4a and 5a indicate ridge lines at the tops of the full beads 4a and 5a, and solid lines indicating the first and second half beads 4b, 5b, 4c and 5c are intermediate plates 6 in these half beads. An intermediate portion between the base portion on the side and the base portion on the cylinder block 3 or cylinder head 2 side is shown.
The full bead 4 a of the gasket substrate 4 on the cylinder head 2 side protrudes toward the cylinder head 2, and its inner peripheral side and outer peripheral side bases overlap with the shim plate 7.
On the other hand, the full bead 5a of the gasket substrate 5 on the cylinder block 3 side protrudes toward the cylinder block 3, and the inner peripheral side and the outer peripheral base are fixed to the shim plate 7 from the back side of the intermediate plate 6. It has come to polymerize.
In the case of the engine of the present embodiment, the adjacent cylinder bores 3a are separated from each other. Therefore, the flat portions 4d, 5d are provided between the full beads 4a, 5a and the full beads 4a, 5a in the gasket substrates 4, 5. Is to be formed.
　次に、上記第１ハーフビード４ｂ，５ｂについて説明するが、ここではシリンダヘッド２側のガスケット基板４に設けた第１ハーフビード４ｂについて説明し、同じ構成を有するシリンダブロック３側のガスケット基板５に設けた第１ハーフビード５ｂの説明を省略する。
　まず、上記第１ハーフビード４ｂはガスケット基板４に形成された上記燃焼室孔８を囲繞する全てのフルビード４ａを無端状に囲繞するように形成され、かつ燃焼室孔８と燃焼室孔８とが接近した位置において、第１ハーフビード４ｂは上記中心線Ｃを挟んで離隔するように形成されている。
　また第１ハーフビード４ｂは、上記水孔１０が当該第１ハーフビード４ｂによって囲繞された領域よりも外側に位置するように設けられており、かつシリンダヘッド２およびシリンダブロック３に設けた冷却液通路２ａ、３ｂと重ならないような位置に設けられている。
　本実施例の場合、第１ハーフビード４ｂにおける上記燃焼室孔８と燃焼室孔８との間に位置する部分は、上記中心線Ｃに直行する方向に設けられた２つの水孔１０の間を通過することから、当該部分が他の部分に比べてくびれた形状を有し、当該部分は曲線を組み合わせた滑らかな形状を有している。
　そして上記第１ハーフビード４ｂにおける上記シム板７側の内周縁は中間板６に対して離隔する方向に突出し、外周縁が中間板６側に位置して上記中間板６に当接するようになっている。
　また上記第１ハーフビード４ｂにおける上記シム板７側の内周縁は上記シム板７の外周側の端部と重合しないように形成され、図２に示す第１ハーフビード４ｂがシム板７の外周に沿って形成されている部分では、上記シム板７の外周縁に対して約１ｍｍ離隔した状態を維持するようになっている。 Next, the first half beads 4b and 5b will be described. Here, the first half bead 4b provided on the gasket substrate 4 on the cylinder head 2 side will be described and provided on the gasket substrate 5 on the cylinder block 3 side having the same configuration. The description of the first half bead 5b is omitted.
First, the first half bead 4b is formed so as to endlessly surround all the full beads 4a surrounding the combustion chamber holes 8 formed in the gasket substrate 4, and the combustion chamber holes 8 and the combustion chamber holes 8 are formed. In the approached position, the first half beads 4b are formed so as to be separated with the center line C interposed therebetween.
The first half bead 4b is provided so that the water hole 10 is located outside the region surrounded by the first half bead 4b, and the coolant passage 2a provided in the cylinder head 2 and the cylinder block 3 is provided. 3b are provided at positions that do not overlap with 3b.
In the case of this embodiment, the portion of the first half bead 4b located between the combustion chamber hole 8 and the combustion chamber hole 8 is between the two water holes 10 provided in the direction perpendicular to the center line C. Since it passes, the said part has the shape narrower than the other part, and the said part has the smooth shape which combined the curve.
The inner edge of the first half bead 4b on the shim plate 7 side protrudes away from the intermediate plate 6, and the outer edge is located on the intermediate plate 6 side so as to come into contact with the intermediate plate 6. Yes.
Further, the inner peripheral edge of the first half bead 4b on the shim plate 7 side is formed so as not to overlap with the outer peripheral end of the shim plate 7, and the first half bead 4b shown in FIG. In the formed portion, the state of being separated from the outer peripheral edge of the shim plate 7 by about 1 mm is maintained.
　次に、第２ハーフビード４ｃ、５ｃは、上記燃焼室孔８、フルビード４ａ、５ａ、第１ハーフビード４ｂ、５ｂを囲むとともに、ガスケット基板４，５の外縁部に沿って形成されている。
　詳しくは、図１に示すように上記第１ハーフビード４ｂ，５ｂの周囲に配置された水孔１０を囲繞するように形成され、かつ水孔１０と上記ボルト孔９との間を通過するように形成されている。
　そしてこの第２ハーフビード４ｃ、５ｃは、外周縁が中間板６に対して離隔する方向に突出し、内周縁が中間板６側に位置して上記中間板６に当接するようになっている。
　この第２ハーフビード４ｃ、５ｃを設けることにより、上記水孔１０を流通する冷却液がシリンダヘッド２とシリンダブロック３との間から外部に漏出してしまうのを防止するようになっている。 Next, the second half beads 4c and 5c surround the combustion chamber hole 8, the full beads 4a and 5a, and the first half beads 4b and 5b, and are formed along the outer edges of the gasket substrates 4 and 5.
Specifically, as shown in FIG. 1, it is formed so as to surround the water hole 10 arranged around the first half beads 4b and 5b, and passes between the water hole 10 and the bolt hole 9. Is formed.
The second half beads 4 c and 5 c protrude in a direction in which the outer peripheral edge is separated from the intermediate plate 6, and the inner peripheral edge is located on the intermediate plate 6 side so as to contact the intermediate plate 6.
By providing the second half beads 4c and 5c, the coolant flowing through the water hole 10 is prevented from leaking from between the cylinder head 2 and the cylinder block 3 to the outside.
　上記構成を有するシリンダヘッドガスケット１をシリンダヘッド２とシリンダブロック３とによって挟持すると、上記ガスケット基板４，５のフルビード４ａ、５ａが弾性変形しながら圧縮され、これにより燃焼室孔８からの排気ガスの漏出を防止するようになっている。
　また燃焼室孔８を囲繞するように上記中間板６にはシム板７が固定され、かつフルビード４ａ，５ａがこのシム板７と重合するように形成されていることから、燃焼室孔８の周辺の荷重を大きくすることができ、該燃焼室孔８周辺のシール性能を良好にするようになっている。
　そして、本実施例のシリンダヘッドガスケット１は、複数の燃焼室孔８をそれぞれ囲繞する複数のフルビード４ａ、５ａを、上記第１ハーフビード４ｂ，５ｂによって無端状に囲繞した構成を有している。
　シリンダヘッドガスケット１をシリンダヘッド２とシリンダブロック３とによって挟持すると、上記第１ハーフビード４ｂ、５ｂが弾性変形してシリンダヘッド２とシリンダブロック３に密着し、これにより第１ハーフビード４ｂ、５ｂよりも燃焼室孔８側に形成された領域はその外部より区画されることとなる。 When the cylinder head gasket 1 having the above configuration is sandwiched between the cylinder head 2 and the cylinder block 3, the full beads 4a and 5a of the gasket substrates 4 and 5 are compressed while being elastically deformed, whereby exhaust gas from the combustion chamber hole 8 is compressed. To prevent leakage.
Further, since the shim plate 7 is fixed to the intermediate plate 6 so as to surround the combustion chamber hole 8 and the full beads 4 a and 5 a are formed so as to overlap with the shim plate 7, The surrounding load can be increased, and the sealing performance around the combustion chamber hole 8 is improved.
The cylinder head gasket 1 according to the present embodiment has a configuration in which a plurality of full beads 4a and 5a surrounding a plurality of combustion chamber holes 8 are surrounded endlessly by the first half beads 4b and 5b.
When the cylinder head gasket 1 is sandwiched between the cylinder head 2 and the cylinder block 3, the first half beads 4b and 5b are elastically deformed to come into close contact with the cylinder head 2 and the cylinder block 3, thereby making the first half beads 4b and 5b more tightly coupled. The region formed on the combustion chamber hole 8 side is partitioned from the outside.
　一方、上記水孔１０は、この第１ハーフビード４ｂ，５ｂによって囲繞された領域よりも外側に設けられているため、この水孔１０を介してシリンダヘッド２とシリンダブロック３との間に流入した冷却液は、この第１ハーフビード４ｂ，５ｂによって燃焼室孔８側の領域への流入が阻止されることとなる。
　特に、第１ハーフビード４ｂ、５ｂをシリンダヘッド２およびシリンダブロック３に形成した冷却液通路２ａ、３ｂの開口部と重ならないように設けているため、上記領域への冷却液の流入を阻止することが可能となっている。
　そして上記第１ハーフビード４ｂ，５ｂに囲繞された領域の内部には、隣接するフルビード４ａ、５ａとフルビード４ａ、５ａとの間に形成された平坦部４ｄ、５ｄが位置していることから、この平坦部４ｄ、５ｄへの冷却液の流入が阻止されるようになっている。
　このように上記平坦部４ｄ、５ｄへの冷却液の流入を防止することで、冷却液の蒸発による上記平坦部４ｄ、５ｄに塗布されたコーティングの損傷を防止することが可能となっている。
　つまり、従来のフルビードとフルビードとが離隔したシリンダヘッドガスケットでは、上記平坦部の面圧が低いことから、当該部分に上記水孔から冷却液が入り込みやすい状態となっていた。
　その結果、シリンダボアでの爆発によって燃焼室孔周辺のガスケット基板が加熱され、伝熱により上記平坦部で冷却液が蒸発し、その蒸気によって上記コーティングが損傷され、はく離してしまうという問題があった。 On the other hand, since the water hole 10 is provided outside the region surrounded by the first half beads 4b and 5b, the water hole 10 flows between the cylinder head 2 and the cylinder block 3 through the water hole 10. The coolant is prevented from flowing into the region on the combustion chamber hole 8 side by the first half beads 4b and 5b.
In particular, since the first half beads 4b and 5b are provided so as not to overlap the openings of the coolant passages 2a and 3b formed in the cylinder head 2 and the cylinder block 3, it is possible to prevent the coolant from flowing into the region. Is possible.
And, since the flat portions 4d and 5d formed between the adjacent full beads 4a and 5a and the full beads 4a and 5a are located inside the region surrounded by the first half beads 4b and 5b, this The coolant is prevented from flowing into the flat portions 4d and 5d.
By preventing the coolant from flowing into the flat portions 4d and 5d in this way, it is possible to prevent damage to the coating applied to the flat portions 4d and 5d due to evaporation of the coolant.
That is, in the conventional cylinder head gasket in which the full bead and the full bead are separated, the surface pressure of the flat portion is low, so that the coolant easily enters the portion from the water hole.
As a result, the gasket substrate around the combustion chamber hole is heated by the explosion in the cylinder bore, and the cooling liquid evaporates in the flat part due to heat transfer, and the coating is damaged and peeled off by the vapor. .
　そして、本実施例のシリンダヘッドガスケット１では、上記第１ハーフビード４ｂ，５ｂが上記シム板７よりも外側に設けられて該シム板７と重合しないように設けられている。
　このような構成とすることで、第１ハーフビード４ｂ，５ｂに過大な荷重が作用しないようにすることができ、上記フルビード４ａ、５ａと第１ハーフビード４ｂ，５ｂとに荷重が分散することで燃焼室孔８周辺のシール性が悪化しないようになっている。 In the cylinder head gasket 1 of the present embodiment, the first half beads 4b and 5b are provided outside the shim plate 7 so as not to overlap with the shim plate 7.
By adopting such a configuration, it is possible to prevent an excessive load from acting on the first half beads 4b and 5b, and combustion is achieved by dispersing the load between the full beads 4a and 5a and the first half beads 4b and 5b. The sealing performance around the chamber hole 8 is not deteriorated.
　図４～図６は第２～第４実施例におけるシリンダヘッドガスケット１を示し、それぞれ図１におけるＩＩ－ＩＩ部と同じ位置の断面図を示している。なお、第１実施例と共通する部材については同じ符号を用いて説明するものとし、共通する部分についての説明を省略する。
　図４に示す第２実施例のシリンダヘッドガスケット１は、第１実施例のシリンダヘッドガスケット１に対し、上記第１ハーフビード４ｂ、５ｂおよび第２ハーフビード４ｃ、５ｃの突出方向を反対方向にした構成を有している。
　具体的には、第１ハーフビード４ｂ，５ｂにおけるシム板７側の内周側が中間板６側に突出し、外周側が上記シリンダブロック３やシリンダヘッド２側に突出する構成となっている。
　次に図５に示す第３実施例のシリンダヘッドガスケット１は、シリンダブロック３側のガスケット基板５に設けた第１ハーフビード５ｂおよび第２ハーフビード５ｃの突出方向を第１実施例に対して反対方向に突出させ、さらに上記中間板６に、上記ガスケット基板４，５の第１ハーフビード４ｂ，５ｂと同じ位置に、第３ハーフビード６ａを形成した構成となっている。
　このように中間板６に第３ハーフビード６ａを設けることにより、上記平坦部４ｄ、５ｄへの冷却液の流入をより効果的に阻止することが可能となる。
　図６に示す第４実施例のシリンダヘッドガスケット１は、シリンダブロック３側のガスケット基板５に設けた第１ハーフビード５ｂおよび第２ハーフビード５ｃの突出方向を第１実施例に対して反対方向に突出させ、さらにシリンダブロック３側のガスケット基板５と中間板６との間に、第３ハーフビード１２ａを設けた第２中間板１２を介装した構成となっている。
　このように第２中間板１２を設けて、該第２中間板１２に第１ハーフビード１２ａを形成することにより、上記平坦部４ｄ、５ｄへの冷却液の流入をより効果的に阻止することが可能となる。
　なお、第１ハーフビード４ｂ，５ｂの突出方向や、中間板６や第２中間板１２に第３ハーフビード６ａ、１２ａを設ける構成は、適宜組み合わせることが可能であり、上記第１～第４実施例の構成に限定されるものではない。 FIGS. 4 to 6 show the cylinder head gasket 1 in the second to fourth embodiments, and each show a cross-sectional view at the same position as the II-II portion in FIG. Note that members common to the first embodiment are described using the same reference numerals, and description of common portions is omitted.
The cylinder head gasket 1 of the second embodiment shown in FIG. 4 has a configuration in which the protruding directions of the first half beads 4b and 5b and the second half beads 4c and 5c are opposite to the cylinder head gasket 1 of the first embodiment. have.
Specifically, the inner peripheral side of the first half beads 4b and 5b on the shim plate 7 side protrudes toward the intermediate plate 6, and the outer peripheral side protrudes toward the cylinder block 3 and the cylinder head 2 side.
Next, in the cylinder head gasket 1 of the third embodiment shown in FIG. 5, the projecting directions of the first half beads 5b and the second half beads 5c provided on the gasket substrate 5 on the cylinder block 3 side are opposite to those of the first embodiment. Further, a third half bead 6 a is formed on the intermediate plate 6 at the same position as the first half beads 4 b and 5 b of the gasket substrates 4 and 5.
By providing the third half bead 6a on the intermediate plate 6 in this way, it becomes possible to more effectively prevent the coolant from flowing into the flat portions 4d and 5d.
The cylinder head gasket 1 of the fourth embodiment shown in FIG. 6 projects in the opposite direction to the first embodiment with respect to the first half beads 5b and the second half beads 5c provided on the gasket substrate 5 on the cylinder block 3 side. In addition, a second intermediate plate 12 provided with a third half bead 12a is interposed between the gasket substrate 5 and the intermediate plate 6 on the cylinder block 3 side.
By thus providing the second intermediate plate 12 and forming the first half bead 12a on the second intermediate plate 12, it is possible to more effectively prevent the coolant from flowing into the flat portions 4d and 5d. It becomes possible.
The projecting direction of the first half beads 4b and 5b and the configuration in which the third half beads 6a and 12a are provided on the intermediate plate 6 and the second intermediate plate 12 can be appropriately combined, and the first to fourth embodiments described above. It is not limited to the configuration of
　なお、上記各実施例におけるシム板７は、各燃焼室孔８を囲繞するリング状の独立した部材となっているが、隣接する燃焼室孔８と燃焼室孔８とが接近した位置で相互に連結した１つの部材からなるシム板としてもよい。
　この場合においても、上記第１ハーフビード４ｂ、５ｂを当該シム板と重合しない位置に設けて、第１ハーフビード４ｂ、５ｂに過大な荷重が作用しないようにする必要がある。 The shim plate 7 in each of the above embodiments is an independent ring-shaped member that surrounds each combustion chamber hole 8, but the adjacent combustion chamber holes 8 and the combustion chamber holes 8 are in close proximity to each other. It is good also as a shim board which consists of one member connected to.
Even in this case, it is necessary to provide the first half beads 4b and 5b at positions where they do not overlap with the shim plate so that an excessive load does not act on the first half beads 4b and 5b.
　１　シリンダヘッドガスケット　　　　２　シリンダヘッド
　３　シリンダブロック　　　　　　　　４，５　ガスケット基板
　４ａ，５ａ　フルビード　　　　　　　４ｂ、５ｂ　第１ハーフビード
　４ｃ、５ｃ　第２ハーフビード　　　　６　中間板
　７　シム板 DESCRIPTION OF SYMBOLS 1 Cylinder head gasket 2 Cylinder head 3 Cylinder block 4, 5 Gasket board | substrate 4a, 5a Full bead 4b, 5b 1st half bead 4c, 5c 2nd half bead 6 Intermediate board 7 Shim board

Claims (6)

  1. 　シリンダボアの位置にあわせて形成した複数の燃焼室孔および各燃焼室孔を囲繞するフルビードが形成された一対のガスケット基板と、上記一対のガスケット基板の間に介装された中間板と、上記燃焼室孔を囲繞するとともに上記中間板と一方のガスケット基板との間に介装されたシム板とを備え、
    　上記ガスケット基板および中間板にシリンダブロックに形成された冷却液通路の位置にあわせて水孔を形成するとともに、隣接する上記フルビードとフルビードとを相互に離隔した位置に形成したシリンダヘッドガスケットにおいて、
    　上記シム板を上記フルビードと重合する位置に設け、
    　さらに上記ガスケット基板に上記複数のフルビードを囲繞するとともに上記シム板と重合しない位置に第１ハーフビードを設け、
    　該第１ハーフビードを、上記水孔が上記第１ハーフビードによって囲繞された領域の外側に位置するように設けるとともに、燃焼室孔と燃焼室孔とが接近した位置において、第１ハーフビードを燃焼室孔の中心同士を結んだ中心線を挟んで離隔するように形成したことを特徴とするシリンダヘッドガスケット。     A plurality of combustion chamber holes formed in accordance with the position of the cylinder bore and a pair of gasket substrates formed with a full bead surrounding each combustion chamber hole, an intermediate plate interposed between the pair of gasket substrates, and the combustion A shim plate surrounding the chamber hole and interposed between the intermediate plate and one gasket substrate;
    In the cylinder head gasket in which the water hole is formed in accordance with the position of the coolant passage formed in the cylinder block on the gasket substrate and the intermediate plate, and the adjacent full bead and the full bead are formed at positions separated from each other.
    The shim plate is provided at a position where it overlaps with the full bead,
    Furthermore, a first half bead is provided at a position that surrounds the plurality of full beads on the gasket substrate and does not overlap with the shim plate,
    The first half bead is provided so that the water hole is located outside the region surrounded by the first half bead, and the first half bead is disposed at the position where the combustion chamber hole and the combustion chamber hole are close to each other. A cylinder head gasket characterized by being formed so as to be separated with a center line connecting the centers of each other.
  2. 　上記シム板は複数の燃焼室孔のそれぞれを囲繞するとともに、隣接するシム板とシム板とが相互に離隔した位置に設けられ、さらに各シム板をそれぞれ上記中間板に固定したことを特徴とする請求項１に記載のシリンダヘッドガスケット。 The shim plate surrounds each of the plurality of combustion chamber holes, is provided at a position where adjacent shim plates and shim plates are separated from each other, and each shim plate is fixed to the intermediate plate, respectively. The cylinder head gasket according to claim 1.
  3. 　上記ガスケット基板におけるフルビードは上記中間板に対して離隔する方向に突出し、
    　上記第１ハーフビードは、上記シム板側の内周端が中間板に対して離隔する方向に突出し、外周端が中間板側に突出することを特徴とする請求項１または請求項２のいずれかに記載のシリンダヘッドガスケット。     The full bead in the gasket substrate protrudes in a direction away from the intermediate plate,
    3. The first half bead according to claim 1, wherein the inner peripheral end of the shim plate side protrudes in a direction separating from the intermediate plate, and the outer peripheral end protrudes to the intermediate plate side. The cylinder head gasket described in 1.
  4. 　上記ガスケット基板におけるフルビードは上記中間板に対して離隔する方向に突出し、
    　上記第１ハーフビードは、上記シム板側の内周端が中間板側に突出し、外周端が中間板に対して離隔する方向に突出することを特徴とする請求項１または請求項２のいずれかに記載のシリンダヘッドガスケット。     The full bead in the gasket substrate protrudes in a direction away from the intermediate plate,
    3. The first half bead according to claim 1, wherein an inner peripheral end on the shim plate side protrudes toward the intermediate plate, and an outer peripheral end protrudes in a direction away from the intermediate plate. The cylinder head gasket described in 1.
  5. 　上記ガスケット基板に、上記燃焼室孔、フルビード、第１ハーフビードを囲むとともに該ガスケット基板の外縁部に沿って形成された第２ハーフビードを設けたことを特徴とする請求項１ないし請求項４のいずれかに記載のシリンダヘッドガスケット。 5. The gasket substrate according to claim 1, further comprising a second half bead that surrounds the combustion chamber hole, the full bead, and the first half bead and is formed along an outer edge of the gasket substrate. Cylinder head gasket according to the above.
  6. 　上記中間板に、上記第１ハーフビードに重合する第３ハーフビードを設けたことを特徴とする請求項１ないし請求項５のいずれかに記載のシリンダヘッドガスケット。 6. The cylinder head gasket according to claim 1, wherein the intermediate plate is provided with a third half bead that is superposed on the first half bead.
PCT/JP2011/072840 2010-10-07 2011-10-04 Cylinder head gasket WO2012046718A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
BR112013008115-5A BR112013008115B1 (en) 2010-10-07 2011-10-04 cylinder head gasket
CN201180048025.3A CN103154487B (en) 2010-10-07 2011-10-04 cylinder head gasket

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2010-227228 2010-10-07
JP2010227228A JP5750859B2 (en) 2010-10-07 2010-10-07 Cylinder head gasket

Publications (1)

Publication Number Publication Date
WO2012046718A1 true WO2012046718A1 (en) 2012-04-12

Family

ID=45927714

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2011/072840 WO2012046718A1 (en) 2010-10-07 2011-10-04 Cylinder head gasket

Country Status (4)

Country Link
JP (1) JP5750859B2 (en)
CN (1) CN103154487B (en)
BR (1) BR112013008115B1 (en)
WO (1) WO2012046718A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170191445A1 (en) * 2016-01-05 2017-07-06 Federal-Mogul Corporation Multi-Layer Gasket Assembly

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013214550A (en) 2012-03-30 2013-10-17 Toshiba Corp High-frequency module
US20150226153A1 (en) * 2014-02-13 2015-08-13 Federal Mogul Corporation Cylinder head gasket for high load and motion applications
JP6398147B2 (en) * 2014-02-28 2018-10-03 日本ガスケット株式会社 Cylinder head gasket
WO2016002709A1 (en) * 2014-07-04 2016-01-07 日本ガスケット株式会社 Cylinder head gasket
CN105971764A (en) * 2016-07-26 2016-09-28 力帆实业(集团)股份有限公司 Sealing cushion structure for water-cooled engine cylinder head of motorcycle
JP6453369B2 (en) 2017-02-22 2019-01-16 日本リークレス工業株式会社 Metal gasket
JP2020190224A (en) * 2019-05-21 2020-11-26 マツダ株式会社 Seal member of engine
US11635143B2 (en) * 2019-10-14 2023-04-25 Dana Automotive Systems Group, Llc Multi-layer gasket with improved fatigue resistance
US11585441B2 (en) * 2020-11-20 2023-02-21 Dana Automotive Systems Group, Llc Laser profiled gasket and method for manufacturing said gasket

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3700960B2 (en) * 1998-02-20 2005-09-28 大豊工業株式会社 Cylinder head gasket
JP4127726B2 (en) * 1997-04-11 2008-07-30 三和パッキング工業株式会社 Cylinder head gasket
JP2010139007A (en) * 2008-12-12 2010-06-24 Nippon Gasket Co Ltd Cylinder head gasket

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001248496A (en) * 2000-03-03 2001-09-14 Ket & Ket:Kk Cylinder head gasket for indirect injection diesel engine
DE10101604B4 (en) * 2001-01-16 2005-02-17 Federal-Mogul Sealing Systems Gmbh Metallic cylinder head gasket
WO2008084718A1 (en) * 2007-01-12 2008-07-17 Nippon Gasket Co., Ltd. Metal gasket

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4127726B2 (en) * 1997-04-11 2008-07-30 三和パッキング工業株式会社 Cylinder head gasket
JP3700960B2 (en) * 1998-02-20 2005-09-28 大豊工業株式会社 Cylinder head gasket
JP2010139007A (en) * 2008-12-12 2010-06-24 Nippon Gasket Co Ltd Cylinder head gasket

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170191445A1 (en) * 2016-01-05 2017-07-06 Federal-Mogul Corporation Multi-Layer Gasket Assembly

Also Published As

Publication number Publication date
CN103154487B (en) 2015-11-25
JP5750859B2 (en) 2015-07-22
JP2012082851A (en) 2012-04-26
CN103154487A (en) 2013-06-12
BR112013008115A2 (en) 2018-05-22
BR112013008115B1 (en) 2021-01-12

Similar Documents

Publication Publication Date Title
JP5750859B2 (en) Cylinder head gasket
US8100409B2 (en) Metallic cylinder head gasket
JP5521192B2 (en) Static gasket
KR100793907B1 (en) Cyinder head gasket
KR100446831B1 (en) Head Gasket
US8500131B2 (en) Exhaust manifold gasket
JP5640646B2 (en) Cylinder head gasket
JP6246797B2 (en) Metal gasket
JP2004293596A (en) Metal gasket
US20060197288A1 (en) Metal laminate cylinder head gasket
KR100950000B1 (en) Cylinder head gasket
KR101345689B1 (en) Cylinder head gasket
KR100866369B1 (en) Cylinder Head Gasket
US10113505B2 (en) Gasket and engine with the gasket
JP5077436B2 (en) Cylinder head gasket
US20140062033A1 (en) Cylinder head gasket
KR20010060280A (en) Sealing System For Engines
JP2018071730A (en) gasket
WO2014073413A1 (en) Cylinder head gasket
KR100692513B1 (en) Cylinder head gasket
JPH11159621A (en) Metal-made gasket
JP2009114863A (en) Cylinder head gasket
JPH09112698A (en) Head gasket
JP2012067773A (en) Cylinder head gasket
JP2010065807A (en) Cylinder head gasket

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 201180048025.3

Country of ref document: CN

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 11830650

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 11830650

Country of ref document: EP

Kind code of ref document: A1

REG Reference to national code

Ref country code: BR

Ref legal event code: B01A

Ref document number: 112013008115

Country of ref document: BR

ENP Entry into the national phase

Ref document number: 112013008115

Country of ref document: BR

Kind code of ref document: A2

Effective date: 20130404