JPH0427430B2 - - Google Patents
Info
- Publication number
- JPH0427430B2 JPH0427430B2 JP59238238A JP23823884A JPH0427430B2 JP H0427430 B2 JPH0427430 B2 JP H0427430B2 JP 59238238 A JP59238238 A JP 59238238A JP 23823884 A JP23823884 A JP 23823884A JP H0427430 B2 JPH0427430 B2 JP H0427430B2
- Authority
- JP
- Japan
- Prior art keywords
- heat
- plate
- resistant metal
- head
- insulating gasket
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Lifetime
Links
- 229910052751 metal Inorganic materials 0.000 claims description 24
- 239000002184 metal Substances 0.000 claims description 24
- 239000000843 powder Substances 0.000 claims description 10
- 230000003014 reinforcing effect Effects 0.000 claims description 9
- 238000002485 combustion reaction Methods 0.000 description 10
- 239000000919 ceramic Substances 0.000 description 9
- 230000002093 peripheral effect Effects 0.000 description 9
- 239000000446 fuel Substances 0.000 description 5
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 4
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 229910001220 stainless steel Inorganic materials 0.000 description 4
- 239000010935 stainless steel Substances 0.000 description 4
- 238000007789 sealing Methods 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 239000000567 combustion gas Substances 0.000 description 2
- 229910052878 cordierite Inorganic materials 0.000 description 2
- JSKIRARMQDRGJZ-UHFFFAOYSA-N dimagnesium dioxido-bis[(1-oxido-3-oxo-2,4,6,8,9-pentaoxa-1,3-disila-5,7-dialuminabicyclo[3.3.1]nonan-7-yl)oxy]silane Chemical compound [Mg++].[Mg++].[O-][Si]([O-])(O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2)O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2 JSKIRARMQDRGJZ-UHFFFAOYSA-N 0.000 description 2
- NJLLQSBAHIKGKF-UHFFFAOYSA-N dipotassium dioxido(oxo)titanium Chemical compound [K+].[K+].[O-][Ti]([O-])=O NJLLQSBAHIKGKF-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910001026 inconel Inorganic materials 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 230000000116 mitigating effect Effects 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000007665 sagging Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B77/00—Component parts, details or accessories, not otherwise provided for
- F02B77/11—Thermal or acoustic insulation
-
- 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
- F16J15/10—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing
- F16J15/12—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing with metal reinforcement or covering
- F16J15/121—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing with metal reinforcement or covering with metal reinforcement
- F16J15/122—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing with metal reinforcement or covering with metal reinforcement generally parallel to the surfaces
- F16J15/123—Details relating to the edges of the packing
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Gasket Seals (AREA)
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明はセラミツクスを利用した断熱内燃機関
などの重合せ壁部に介装される、断熱ガスケツト
に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a heat insulating gasket that is interposed in the overlapping wall of a heat insulating internal combustion engine or the like using ceramics.
［従来の技術］
実開昭59−105044号公報などに開示される内燃
機関では、燃焼室を断熱化するために、金属製の
シリンダボデイやシリンダヘツドに、熱衝撃を緩
和するガスケツトを挟んで、セラミツクス製のシ
リンダライナやヘツドライナを結合している。[Prior Art] In the internal combustion engine disclosed in Japanese Utility Model Application Publication No. 59-105044, etc., a gasket for mitigating thermal shock is sandwiched between the metal cylinder body and cylinder head in order to insulate the combustion chamber. , and are combined with ceramic cylinder liners and head liners.
しかし、爆発圧力を直接受けるヘツドライナと
シリンダヘツドとの間に、普通のガスケツトを介
装するだけでは、ヘツドライナが振動し、吸排気
弁との係合位置が変化する恐れがある。シリンダ
ヘツドとヘツドライナとの間は、ヘツドライナか
らシリンダヘツドへの伝熱を阻止し、かつ燃料噴
射ノズルなどの取付穴の周囲を封止する断熱ガス
ケツトを介装する必要がある。 However, simply interposing an ordinary gasket between the head liner and the cylinder head, which are directly exposed to explosion pressure, may cause the head liner to vibrate and change its engagement position with the intake and exhaust valves. A heat insulating gasket must be interposed between the cylinder head and the head liner to prevent heat transfer from the head liner to the cylinder head and to seal around the mounting hole for the fuel injection nozzle and the like.
断熱ピストンも金属製のスカート部とセラミツ
クス製のピストン冠部との間に、断熱性と耐圧縮
性の優れた断熱ガスケツトを介装する必要があ
る。 The heat insulating piston also requires a heat insulating gasket with excellent heat insulation and compression resistance to be interposed between the metal skirt and the ceramic piston crown.
［発明が解決しようとする問題点］
ヘツドライナからシリンダヘツドへの熱流出に
より、シリンダヘツドが高温になると、動弁機構
の潤滑油が劣化し、また、燃焼室へ突出する燃料
噴射ノズルの取付穴の周囲が完全に封止されない
と、燃焼ガスがヘツドライナとシリンダヘツドと
の間や吸排気ポートへ洩れ、シリンダヘツドが加
熱されるばかりでなく、燃焼室の圧力が低下し、
機関の出力が低下する。[Problems to be solved by the invention] When the cylinder head becomes high temperature due to heat leakage from the head liner to the cylinder head, the lubricating oil of the valve mechanism deteriorates, and the mounting hole of the fuel injection nozzle protruding into the combustion chamber deteriorates. If the area around the cylinder is not completely sealed, combustion gas will leak between the head liner and cylinder head or into the intake and exhaust ports, not only heating the cylinder head but also reducing the pressure in the combustion chamber.
Engine output decreases.
本発明の目的は上述の問題に鑑み、製作が容易
で、耐圧縮性と断熱性とシール性に優れた、断熱
ガスケツトを提供することにある。 SUMMARY OF THE INVENTION In view of the above-mentioned problems, an object of the present invention is to provide a heat insulating gasket which is easy to manufacture and has excellent compression resistance, heat insulation and sealing properties.
［問題点を解決するための手段］
上記目的を達成するために、本発明の構成は耐
熱性金属製の下板の縁部を断面Ｃ字形に湾曲し、
かつ耐熱性金属製の上板へ重ね合せて偏平な袋体
を構成し、袋体の内側周縁部に上板と下板に接す
る耐熱性金属製の補強リングを支持し、袋体の内
部に低熱伝導粉末を充填したものである。[Means for Solving the Problems] In order to achieve the above object, the structure of the present invention is such that the edge of the lower plate made of heat-resistant metal is curved into a C-shaped cross section,
A flat bag is constructed by overlapping a heat-resistant metal top plate, and a heat-resistant metal reinforcing ring is supported on the inner peripheral edge of the bag, which is in contact with the top and bottom plates. It is filled with low thermal conductivity powder.
［作用］
耐熱性金属製の上板と下板により形成した袋体
へ充填された低熱伝導粉末は、重合せ壁部の間の
伝熱を抑える。[Function] The low thermal conductivity powder filled into the bag formed by the upper and lower plates made of heat-resistant metal suppresses heat transfer between the overlapping walls.
上板の縁部は断面Ｃ字形に湾曲されて下板へ重
ね合され、自己の弾発力により重合せ部へ弾性的
に係合し、重合せ壁部の間を封止する。 The edge of the upper plate is curved into a C-shaped cross section and overlapped with the lower plate, and elastically engages the overlapping portion by its own elastic force to seal between the overlapping wall portions.
補強リングは袋体の内側周縁部にあつて、上板
と下板の重合せ壁部へ加えられる締結荷重に対し
耐圧縮性を発揮する。 The reinforcing ring is located at the inner peripheral edge of the bag and exhibits compression resistance against the fastening load applied to the overlapping wall of the upper and lower plates.
［発明の実施例］
第３図は本発明による断熱ガスケツトが使用さ
れる断熱内燃機関の正面断面図である。普通の金
属製のシリンダヘツド１に円筒部１ａが形成さ
れ、円筒部１ａにセラミツクス製のカツプ形のヘ
ツドライナ３が上下１対の位置決めリング９を介
して嵌合される。シリンダヘツド１の下面１ｂと
ヘツドライナ３の上面の間に、本発明による断熱
ガスケツト１６が介装される。ヘツドライナ３の
上端壁は吸排気ポート１１を形成され、セラミツ
クス製の吸排気弁７により開閉される。燃焼室の
大部分はセラミツクス製のヘツドライナ３とセラ
ミツクス製のピストン冠部８とにより覆われ、ヘ
ツドライナ３は燃焼室の主要部から離れた部分
で、セラミツクス製のシリンダライナ４へ突き合
される。[Embodiments of the Invention] FIG. 3 is a front sectional view of an adiabatic internal combustion engine in which the insulating gasket according to the present invention is used. A cylinder head 1 made of ordinary metal is formed with a cylindrical portion 1a, and a cup-shaped head liner 3 made of ceramic is fitted into the cylindrical portion 1a via a pair of upper and lower positioning rings 9. A heat insulating gasket 16 according to the present invention is interposed between the lower surface 1b of the cylinder head 1 and the upper surface of the head liner 3. The upper end wall of the head liner 3 is formed with an intake/exhaust port 11, which is opened and closed by an intake/exhaust valve 7 made of ceramics. Most of the combustion chamber is covered by a ceramic head liner 3 and a ceramic piston crown 8, and the head liner 3 butts against a ceramic cylinder liner 4 at a portion away from the main part of the combustion chamber.
実際には、ヘツドライナ３とシリンダライナ４
との熱膨張差による応力を回避するために、両者
の間は微小な〓間を備えられ、ヘツドライナ３の
下端面とシリンダボデイ２の上端面との間にガス
ケツト２２が介装され、図示してないボルトをシ
リンダヘツド１からシリンダボデイ２へ螺合して
締結される。シリンダライナ４はシリンダボデイ
２の円筒部２０へ嵌合される。 Actually, head liner 3 and cylinder liner 4
In order to avoid stress due to the difference in thermal expansion between the head liner 3 and the cylinder body 2, a small gap is provided between the two, and a gasket 22 is interposed between the lower end surface of the head liner 3 and the upper end surface of the cylinder body 2. The cylinder head 1 is screwed into the cylinder body 2 with a bolt that is not attached to the cylinder head 1. The cylinder liner 4 is fitted into the cylindrical portion 20 of the cylinder body 2.
ピストン１９はセラミツクス製のピストン冠部
８と、普通の金属製のスカート部６とから構成さ
れる。ピストン冠部８は上端面に燃料と空気の混
合を促す窪み３９を設けられ、下端周縁部に段部
を備えられる。スカート部６は周壁にピストンリ
ング４１を装着され、上端周縁部に突条２９を形
成される。スカート部６の突条２９はピストン冠
部８の段部へ嵌合される。スカート部６の上面中
心に形成した柱３５は、本発明による断熱ガスケ
ツト１６Ａを介装してピストン冠部８を支持し、
両者を貫通するボルト３１とナツト３３により結
合される。 The piston 19 is composed of a piston crown part 8 made of ceramics and a skirt part 6 made of ordinary metal. The piston crown 8 is provided with a recess 39 on its upper end surface to promote mixing of fuel and air, and a stepped portion on its lower peripheral edge. A piston ring 41 is mounted on the peripheral wall of the skirt portion 6, and a protrusion 29 is formed on the upper peripheral edge. The protrusion 29 of the skirt portion 6 is fitted into the stepped portion of the piston crown portion 8. The pillar 35 formed at the center of the upper surface of the skirt portion 6 supports the piston crown portion 8 with the insulating gasket 16A according to the present invention interposed therebetween.
They are connected by a bolt 31 and a nut 33 passing through them.
第１図に示すように、本発明による断熱ガスケ
ツト１６は、ステンレスなどの耐熱性金属板製の
上板１２と下板１３とから袋体を構成し、袋体の
内側周縁部にインコネルなどの耐熱性金属製の断
面円形の中空の補強リング２１を収容し、袋体の
内部にチタン酸カリウムなどの低熱伝導粉末１４
を充填して構成される。上板１２の周縁部と燃料
噴射ノズル５を挿通する取付穴１０の周縁部と吸
排気ポート１１の周縁部において、上板１２の縁
部１２ａは断面Ｃ字形に湾曲され、下板１３へ重
ね合される。好ましくは、下板１３の周縁部は幾
分内側へ窪ませて、上板１２の縁部１２ａと下板
１３とが連続する平面をなすように構成される。
縁部１２ａは上板１２に限定されるものではな
く、下板１３の縁部を断面Ｃ字形に湾曲して上板
１２へ重ね合せ、袋体を構成してもよい。 As shown in FIG. 1, the insulating gasket 16 according to the present invention has a bag made of an upper plate 12 and a lower plate 13 made of a heat-resistant metal plate such as stainless steel, and a bag made of Inconel or the like on the inner peripheral edge of the bag. A hollow reinforcing ring 21 made of heat-resistant metal with a circular cross section is accommodated, and a low thermal conductive powder 14 such as potassium titanate is placed inside the bag.
It is made up of filling. The edge 12a of the upper plate 12 is curved into a C-shaped cross section at the periphery of the upper plate 12, the periphery of the mounting hole 10 through which the fuel injection nozzle 5 is inserted, and the periphery of the intake/exhaust port 11, and is overlapped with the lower plate 13. will be combined. Preferably, the peripheral edge of the lower plate 13 is slightly recessed inward so that the edge 12a of the upper plate 12 and the lower plate 13 form a continuous plane.
The edge portion 12a is not limited to the upper plate 12, and the edge portion of the lower plate 13 may be curved into a C-shaped cross section and overlapped with the upper plate 12 to form a bag body.
本発明によれば、袋体が上板１２と下板１３に
より形成され、袋体の内部に充填された低熱伝導
粉末１４は、断熱層としての形状を保持する。特
に、断面Ｃ字形に湾曲された縁部１２ａは、中空
の補強リング２１により補強され、シリンダヘツ
ド１をシリンダボデイ２へ締結するヘツドボルト
の締付力を受けて、シリンダライナ４とシリンダ
ヘツド１の重合せ壁部に弾性的に密接し、燃焼室
の燃焼ガスが断熱ガスケツトの装着部から外部へ
洩れるのを封止る。 According to the present invention, the bag is formed by the upper plate 12 and the lower plate 13, and the low thermal conductive powder 14 filled inside the bag maintains its shape as a heat insulating layer. In particular, the edge 12a, which is curved into a C-shaped cross section, is reinforced by a hollow reinforcing ring 21, and receives the tightening force of the head bolt that fastens the cylinder head 1 to the cylinder body 2. It elastically comes into close contact with the overlapping wall portion and seals the combustion gas in the combustion chamber from leaking to the outside from the mounting portion of the heat insulating gasket.
第１図に示す断熱ガスケツト１６を製造するに
は、上板１２として厚さ0.2mmのステンレス鋼板
を用い、上板１２の周縁部と取付穴１０などの縁
部１２ａを板面に対し垂直な円筒形に湾曲して、
上板１２の内側周縁部にインコネルなどの耐熱性
金属製の断面円形の中空の補強リング２１を収容
する。上板１２の内部へチタン酸カリウムなどの
低熱伝導粉末１４を層厚1.1mmに充填する。予め
低熱伝導粉末１４から成形したシートを所要枚数
重ね合せて収容してもよい。低熱伝導粉末１４を
下板１３としての厚さ0.2mmのステンレス鋼板で
覆い、上板１２の縁部１２ａを断面Ｃ字形に湾曲
して下板１３へ重ね合せる。 To manufacture the heat insulating gasket 16 shown in FIG. 1, a stainless steel plate with a thickness of 0.2 mm is used as the top plate 12, and the peripheral edge of the top plate 12 and the edges 12a such as the mounting holes 10 are perpendicular to the plate surface. Curved into a cylindrical shape,
A hollow reinforcing ring 21 having a circular cross section and made of a heat-resistant metal such as Inconel is housed in the inner peripheral edge of the upper plate 12. The inside of the upper plate 12 is filled with a low thermal conductivity powder 14 such as potassium titanate to a layer thickness of 1.1 mm. A required number of sheets formed in advance from low thermal conductivity powder 14 may be stacked and stored. The low thermal conductivity powder 14 is covered with a stainless steel plate with a thickness of 0.2 mm as the lower plate 13, and the edge 12a of the upper plate 12 is curved into a C-shape in cross section and overlapped with the lower plate 13.
上板１２と下板１３はステンレスなどの耐熱性
金属板を用いているが、耐熱性金属板の表面にコ
ージライト、ジルコニアなどをコーテイングすれ
ば、ヘツドライナ３から断熱ガスケツト１６を経
てシリンダヘツド１へ逃げる伝熱量を一層抑止で
きる。また、上板１２と下板１３の外表面にニツ
ケルメツキを施せば、ヘツドライナ３からシリン
ダヘツド１への熱輻射を抑止できる。 The upper plate 12 and the lower plate 13 are made of heat-resistant metal plates such as stainless steel, but if the surface of the heat-resistant metal plates is coated with cordierite, zirconia, etc., the heat-resistant metal plates can be coated with cordierite, zirconia, etc., and the heat-resistant metal plates can be coated from the head liner 3 to the cylinder head 1 via the insulating gasket 16. The amount of heat transfer that escapes can be further suppressed. Further, by applying nickel plating to the outer surfaces of the upper plate 12 and the lower plate 13, heat radiation from the head liner 3 to the cylinder head 1 can be suppressed.
第２図に示す実施例は、上板１２の縁部１２ａ
の内側に複数枚の環状の金属板１５，１７を積層
してなる補強リング２１を挾んだものである。中
間の金属板１７は周方向のビート１７ａを形成さ
れ、耐熱性の接着材により金属板１５へ重合せ結
合される。補強リング２１のビード１７ａは強い
弾発力を発揮し、シリンダヘツド１の締付荷重を
受けて重合せ壁部へ弾性的に係合し、燃料噴射ノ
ズルなどの取付穴１０の周囲を封止する。 In the embodiment shown in FIG.
A reinforcing ring 21 formed by laminating a plurality of annular metal plates 15 and 17 is sandwiched inside the ring. The intermediate metal plate 17 is formed with circumferential beats 17a and is overlappingly bonded to the metal plate 15 using a heat-resistant adhesive. The bead 17a of the reinforcing ring 21 exerts a strong elastic force, receives the tightening load of the cylinder head 1, and elastically engages with the overlapping wall portion, sealing the periphery of the mounting hole 10 for the fuel injection nozzle, etc. do.
なお、上述の実施例では、ヘツドライナ３とシ
リンダヘツド１との間に介装される断熱ガスケツ
ト１６の場合について説明したが、ピストン冠部
８とスカート部６との間に介装される断熱ガスケ
ツト１６Ａにもそのまま使用してピストン冠部８
からスカート部６への伝熱量を抑え、ピストンリ
ング４１の熱負荷を軽減できる。 In addition, in the above-mentioned embodiment, the case where the heat insulating gasket 16 is interposed between the head liner 3 and the cylinder head 1 is explained, but the case where the heat insulating gasket 16 is interposed between the piston crown part 8 and the skirt part 6 is also explained. It can be used as is for 16A, and the piston crown part 8
The amount of heat transferred from the piston ring to the skirt portion 6 can be suppressed, and the heat load on the piston ring 41 can be reduced.
［発明の効果］
本発明によれば、耐熱性金属製の下板の縁部を
断面Ｃ字形に湾曲し、かつ耐熱性金属製の上板へ
重ね合せて形成した偏平な袋体により、低熱伝導
粉末が断熱層として形状を保たれ、重合せ壁部の
間の伝熱を遮断する。[Effects of the Invention] According to the present invention, the flat bag body formed by curving the edge of the heat-resistant metal lower plate into a C-shape in cross section and superimposing it on the heat-resistant metal upper plate allows for low heat resistance. The conductive powder holds its shape as a thermal barrier, blocking heat transfer between the overlapping walls.
上板の断面Ｃ字形に湾曲された縁部は、弾発力
を発揮し、重合せ壁部によく密接し、重合せ壁部
の間を密封する。 The curved edge of the top plate having a C-shaped cross section exerts a resilient force and fits well against the overlapping walls, creating a seal between the overlapping walls.
袋体の内側周縁部に支持され上板と下板に接す
る耐熱性金属製の補強リングは、重合せ壁部の締
結（圧縮）荷重に対し、断熱ガスケツトの周縁部
のへたりを抑え、安定した密封効果を維持する。 A reinforcing ring made of heat-resistant metal that is supported on the inner periphery of the bag and in contact with the upper and lower plates suppresses the sagging of the periphery of the insulating gasket and stabilizes it against the fastening (compression) load of the overlapping walls. maintain the sealing effect.
第１図は本発明の第１の実施例に係る断熱ガス
ケツトの要部を示す正面断面図、第２図は本発明
の第２の実施例に係る断熱ガスケツトの要部を示
す正面断面図、第３図は本発明が適用される断熱
内燃機関の概要を示す正面断面図である。
１：シリンダヘツド、２：シリンダボデイ、
３：ヘツドライナ、４：シリンダライナ、６：ス
カート部、８：ピストン冠部、１０：取付穴、１
２：上板、１３：下板、１２ａ：縁部、１４：低
熱伝導粉末、１６，１６Ａ：断熱ガスケツト。
FIG. 1 is a front sectional view showing the main parts of a heat insulating gasket according to the first embodiment of the present invention, FIG. 2 is a front sectional view showing the main parts of the heat insulating gasket according to the second embodiment of the invention, FIG. 3 is a front sectional view schematically showing an adiabatic internal combustion engine to which the present invention is applied. 1: cylinder head, 2: cylinder body,
3: Head liner, 4: Cylinder liner, 6: Skirt, 8: Piston crown, 10: Mounting hole, 1
2: Upper plate, 13: Lower plate, 12a: Edge, 14: Low thermal conductive powder, 16, 16A: Insulating gasket.
Claims (1)
曲し、かつ耐熱性金属製の上板へ重ね合せて偏平
な袋体を構成し、袋体の内側周縁部に上板と下板
に接する耐熱性金属製の補強リングを支持し、袋
体の内部に低熱伝導粉末を充填したことを特徴と
する、断熱ガスケツト。1 The edge of the lower plate made of heat-resistant metal is curved into a C-shaped cross section, and is overlapped with the upper plate made of heat-resistant metal to form a flat bag body, and the upper plate and the lower plate are formed on the inner periphery of the bag body. An insulating gasket that supports a reinforcing ring made of heat-resistant metal that is in contact with the plate, and is characterized by filling the inside of the bag with low thermal conductivity powder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23823884A JPS61119877A (en) | 1984-11-14 | 1984-11-14 | Heat insulating gasket for heat engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23823884A JPS61119877A (en) | 1984-11-14 | 1984-11-14 | Heat insulating gasket for heat engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61119877A JPS61119877A (en) | 1986-06-07 |
| JPH0427430B2 true JPH0427430B2 (en) | 1992-05-11 |
Family
ID=17027195
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23823884A Granted JPS61119877A (en) | 1984-11-14 | 1984-11-14 | Heat insulating gasket for heat engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61119877A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103807440B (en) * | 2014-03-13 | 2017-06-06 | 茂名重力石化装备股份公司 | A kind of self-energized seal pad for unsymmetric structure sealing |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5130220A (en) * | 1974-09-08 | 1976-03-15 | Tadakazu Kudo | ANZENGARASU |
-
1984
- 1984-11-14 JP JP23823884A patent/JPS61119877A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5130220A (en) * | 1974-09-08 | 1976-03-15 | Tadakazu Kudo | ANZENGARASU |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61119877A (en) | 1986-06-07 |
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