JPS63105754U - - Google Patents

Info

Publication number
JPS63105754U
JPS63105754U JP20261386U JP20261386U JPS63105754U JP S63105754 U JPS63105754 U JP S63105754U JP 20261386 U JP20261386 U JP 20261386U JP 20261386 U JP20261386 U JP 20261386U JP S63105754 U JPS63105754 U JP S63105754U
Authority
JP
Japan
Prior art keywords
piston
piston head
head surface
annular region
relationship
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.)
Granted
Application number
JP20261386U
Other languages
English (en)
Other versions
JPH0519558Y2 (ja
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 filed Critical
Priority to JP1986202613U priority Critical patent/JPH0519558Y2/ja
Publication of JPS63105754U publication Critical patent/JPS63105754U/ja
Application granted granted Critical
Publication of JPH0519558Y2 publication Critical patent/JPH0519558Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Pistons, Piston Rings, And Cylinders (AREA)
  • Combustion Methods Of Internal-Combustion Engines (AREA)

Description

【図面の簡単な説明】
第1、第2図はピストンを示し、第1図は正面
図、第2図は第1図矢視図、第3図は点火後の
経過時間とエンドガスの圧力との関係を示すグラ
フ、第4図はピストンヘツド面における火炎伝播
の様子を示す説明図、第5図は環状領域の幅とメ
カニカルオクタン価向上量との関係を示すグラフ
、第6図は環状領域の表面粗さとメカニカルオク
タン価向上量との関係を示すグラフである。 1……ピストン、2……ピストンヘツド面、2
a……環状領域。

Claims (1)

    【実用新案登録請求の範囲】
  1. ピストンヘツド面の半径をRとして、該ピスト
    ンヘツド面の、それの外周縁に連なる幅0.4R
    以上の環状領域の表面粗さを6S以下に設定した
    ことを特徴とする内燃機関用ピストン。
JP1986202613U 1986-12-27 1986-12-27 Expired - Lifetime JPH0519558Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1986202613U JPH0519558Y2 (ja) 1986-12-27 1986-12-27

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1986202613U JPH0519558Y2 (ja) 1986-12-27 1986-12-27

Publications (2)

Publication Number Publication Date
JPS63105754U true JPS63105754U (ja) 1988-07-08
JPH0519558Y2 JPH0519558Y2 (ja) 1993-05-24

Family

ID=31167163

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1986202613U Expired - Lifetime JPH0519558Y2 (ja) 1986-12-27 1986-12-27

Country Status (1)

Country Link
JP (1) JPH0519558Y2 (ja)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61110836U (ja) * 1984-12-25 1986-07-14

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61110836U (ja) * 1984-12-25 1986-07-14

Also Published As

Publication number Publication date
JPH0519558Y2 (ja) 1993-05-24

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