JPS61144241U - - Google Patents
Info
- Publication number
- JPS61144241U JPS61144241U JP2648385U JP2648385U JPS61144241U JP S61144241 U JPS61144241 U JP S61144241U JP 2648385 U JP2648385 U JP 2648385U JP 2648385 U JP2648385 U JP 2648385U JP S61144241 U JPS61144241 U JP S61144241U
- Authority
- JP
- Japan
- Prior art keywords
- piston
- silicon nitride
- cast iron
- top plate
- ring
- 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.)
- Pending
Links
- 229910001018 Cast iron Inorganic materials 0.000 claims description 3
- 239000000919 ceramic Substances 0.000 claims description 3
- 229910052581 Si3N4 Inorganic materials 0.000 claims 3
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims 3
- 229910010293 ceramic material Inorganic materials 0.000 claims 1
- 238000002485 combustion reaction Methods 0.000 claims 1
- 239000002184 metal Substances 0.000 claims 1
- 229910052751 metal Inorganic materials 0.000 claims 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
Landscapes
- Pistons, Piston Rings, And Cylinders (AREA)
- Ceramic Products (AREA)
Description
第１図は本考案のピストンの一例を示す縦断面
図、第２図は第１図におけるセラミツクスとピス
トン本体との接合部の詳細部分断面図、第３図は
従来のピストンの一例を示す縦断面図、第４図は
第３図におけるセラミツクスとピストン本体との
接合部の詳細部分断面図である。
１：鋳鉄製のピストン本体、２：ピストン頂板
、２ａ：リング状上部、３：中間リング、４：ガ
ラス塗布層、５：銀口一。
Fig. 1 is a longitudinal sectional view showing an example of the piston of the present invention, Fig. 2 is a detailed partial sectional view of the joint between the ceramic and the piston body in Fig. 1, and Fig. 3 is a longitudinal sectional view showing an example of the conventional piston. The plan view and FIG. 4 are detailed partial cross-sectional views of the joint between the ceramic and the piston body in FIG. 3. 1: Piston body made of cast iron, 2: Piston top plate, 2a: Ring-shaped upper part, 3: Intermediate ring, 4: Glass coating layer, 5: Silver tip.
Claims (1)
クス製のピストン頂板２が設けられたピストンに
於て、ピストン頂板２のセラミツク材料を窒化ケ
イ素（Ｓｉ３Ｎ４）とし、かつそのリング状部分
２ａの上部外側にて鋳鉄と窒化ケイ素の中間の加
熱膨張率を有する金属からなる中間リング３を介
在させて接合してなることを特徴とする内燃機関
のピストン。 In a piston in which a piston top plate 2 made of ceramic is provided in a recess at the top of a piston body 1 made of cast iron, the ceramic material of the piston top plate 2 is silicon nitride (Si 3 N 4 ), and the ring-shaped portion 2a is made of silicon nitride (Si 3 N 4 ). A piston for an internal combustion engine, characterized in that the piston is joined at the upper outer side with an intermediate ring 3 made of a metal having a thermal expansion coefficient intermediate between that of cast iron and silicon nitride.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2648385U JPS61144241U (en) | 1985-02-27 | 1985-02-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2648385U JPS61144241U (en) | 1985-02-27 | 1985-02-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61144241U true JPS61144241U (en) | 1986-09-05 |
Family
ID=30522532
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2648385U Pending JPS61144241U (en) | 1985-02-27 | 1985-02-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61144241U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57210141A (en) * | 1981-02-07 | 1982-12-23 | Eeii Plc | Piston for engine |
| JPS5922445A (en) * | 1982-07-28 | 1984-02-04 | Fujitsu Ltd | Optical integrated circuit device |
-
1985
- 1985-02-27 JP JP2648385U patent/JPS61144241U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57210141A (en) * | 1981-02-07 | 1982-12-23 | Eeii Plc | Piston for engine |
| JPS5922445A (en) * | 1982-07-28 | 1984-02-04 | Fujitsu Ltd | Optical integrated circuit device |
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