JPH0231361U - - Google Patents
Info
- Publication number
- JPH0231361U JPH0231361U JP10935788U JP10935788U JPH0231361U JP H0231361 U JPH0231361 U JP H0231361U JP 10935788 U JP10935788 U JP 10935788U JP 10935788 U JP10935788 U JP 10935788U JP H0231361 U JPH0231361 U JP H0231361U
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- recess
- combustion chamber
- piston
- diesel engine
- 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
- 238000002485 combustion reaction Methods 0.000 claims description 6
- 238000002347 injection Methods 0.000 claims 3
- 239000007924 injection Substances 0.000 claims 3
- 238000010586 diagram Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
Landscapes
- Combustion Methods Of Internal-Combustion Engines (AREA)
Description
第１図〜第３図は本考案の実施例を示し、第１
図は第１実施例を示すピストンの縦断側面図、第
２図は第２実施例を示す第１図相当図、第３図は
第３実施例を示す第１図相当図、第４図Ａは公知
例を示す支持部材が変形前のピストンの縦断面図
、第４図Ｂは同公知例を示す支持部材が変形後の
ピストンの縦断面図、第５図は従来技術を示す第
１図相当図である。
１……ピストン本体、２……１の上部肉壁、３
……凹部、４……燃焼室部材、５……４の内面、
６……断熱室、７……感温作動部材。
Figures 1 to 3 show embodiments of the present invention;
The figure is a longitudinal sectional side view of the piston showing the first embodiment, FIG. 2 is a view equivalent to FIG. 1 showing the second embodiment, FIG. 3 is a view equivalent to FIG. 1 showing the third embodiment, and FIG. 4A 4B is a vertical sectional view of a piston after the supporting member has been deformed, showing a known example; FIG. 4B is a longitudinal sectional view of a piston after the supporting member has been deformed; FIG. 5 is FIG. This is a corresponding diagram. 1... Piston body, 2... Upper wall of 1, 3
... recess, 4 ... combustion chamber member, 5 ... inner surface of 4,
6...Insulation chamber, 7...Temperature-sensitive operating member.
Claims (1)
上部肉壁２に凹部３を設け、当該凹部３に耐圧・
耐熱性の燃焼室部材４を嵌入固定し、燃焼室部材
４と凹部３との間に断熱室６を形成した直噴式デ
イーゼルエンジンのピストンにおいて、 燃焼室部材４と凹部３とのいずれか一方に感温
作動部材７を付設し、感温作動部材７が設定温度
以上になる高温状態でのみ、感温作動部材７が燃
焼室部材４と凹部３との間を架橋するように作動
して、燃焼室部材４から感温作動部材７を介して
ピストン本体１の上部肉壁２に放熱するように構
成した事を特徴とする直噴式デイーゼルエンジン
のピストン。[Claims for Utility Model Registration] A recess 3 is provided in the upper wall 2 of the piston body 1 of a direct injection diesel engine, and the recess 3 is provided with a pressure-resistant
In a piston of a direct-injection diesel engine in which a heat-resistant combustion chamber member 4 is fitted and fixed to form a heat insulating chamber 6 between the combustion chamber member 4 and the recess 3, one of the combustion chamber member 4 and the recess 3 is provided. A temperature-sensitive actuating member 7 is attached, and the temperature-sensitive actuating member 7 operates so as to bridge between the combustion chamber member 4 and the recess 3 only in a high temperature state where the temperature of the temperature-sensitive actuating member 7 exceeds a set temperature. A piston for a direct-injection diesel engine characterized in that heat is radiated from a combustion chamber member 4 to an upper wall 2 of a piston body 1 via a temperature-sensitive operating member 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10935788U JPH0231361U (en) | 1988-08-19 | 1988-08-19 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10935788U JPH0231361U (en) | 1988-08-19 | 1988-08-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0231361U true JPH0231361U (en) | 1990-02-27 |
Family
ID=31345528
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10935788U Pending JPH0231361U (en) | 1988-08-19 | 1988-08-19 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0231361U (en) |
-
1988
- 1988-08-19 JP JP10935788U patent/JPH0231361U/ja active Pending
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