JPH01118121U - - Google Patents

Info

Publication number
JPH01118121U
JPH01118121U JP1322788U JP1322788U JPH01118121U JP H01118121 U JPH01118121 U JP H01118121U JP 1322788 U JP1322788 U JP 1322788U JP 1322788 U JP1322788 U JP 1322788U JP H01118121 U JPH01118121 U JP H01118121U
Authority
JP
Japan
Prior art keywords
combustion chamber
swirl chamber
piston
chamber
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
Application number
JP1322788U
Other languages
Japanese (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 JP1322788U priority Critical patent/JPH01118121U/ja
Publication of JPH01118121U publication Critical patent/JPH01118121U/ja
Pending legal-status Critical Current

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  • Combustion Methods Of Internal-Combustion Engines (AREA)

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第1図Aは本考案の一実施例の要部縦断面図、
第1図Bはそのピストンの平面図である。第2図
は本考案の他の実施例のピストンの平面図である
。第3図Aは従来例の要部縦断面図、第3図Bは
そのピストンの平面図である。 3…ピストン、4…シリンダヘツド、5…渦流
室、6…噴孔、8…ピストン頂面、9…主燃焼室
、11…トレンチ部、12…拡散部、13,23
…分散台、17,18…外殻。
FIG. 1A is a vertical cross-sectional view of a main part of an embodiment of the present invention;
FIG. 1B is a plan view of the piston. FIG. 2 is a plan view of a piston according to another embodiment of the present invention. FIG. 3A is a vertical cross-sectional view of a main part of a conventional example, and FIG. 3B is a plan view of the piston. 3...Piston, 4...Cylinder head, 5...Swirl chamber, 6...Nozzle hole, 8...Piston top surface, 9...Main combustion chamber, 11...Trench section, 12...Diffusion section, 13, 23
...Dispersion table, 17, 18... Outer shell.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 主燃焼室の縁部付近に渦流室からの噴孔を開口
させた渦流室式デイーゼル機関の燃焼室を前提と
して、ピストン頂面に、その上方から見て渦流室
から主燃焼室への噴流の中心線上に溝状トレンチ
部を形成し、このトレンチ部から分岐してピスト
ン中心付近の領域から側方に拡がる凹状の拡散部
を形成し、この拡散部をトレンチ部に対して直交
方向に長い略長円形または楕円形に形成したこと
を特徴とする渦流室式デイーゼル機関の燃焼室。
Assuming the combustion chamber of a swirl chamber type diesel engine, in which the jet holes from the swirl chamber are opened near the edge of the main combustion chamber, the jet flow from the swirl chamber to the main combustion chamber is placed on the top surface of the piston when viewed from above. A groove-like trench part is formed on the center line, a concave diffusion part is formed that branches from this trench part and spreads laterally from a region near the center of the piston, and this diffusion part is formed into a long part in a direction orthogonal to the trench part. A combustion chamber of a swirl chamber type diesel engine characterized by having an oval or oval shape.
JP1322788U 1988-02-03 1988-02-03 Pending JPH01118121U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1322788U JPH01118121U (en) 1988-02-03 1988-02-03

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1322788U JPH01118121U (en) 1988-02-03 1988-02-03

Publications (1)

Publication Number Publication Date
JPH01118121U true JPH01118121U (en) 1989-08-09

Family

ID=31223354

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1322788U Pending JPH01118121U (en) 1988-02-03 1988-02-03

Country Status (1)

Country Link
JP (1) JPH01118121U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03234203A (en) * 1990-02-08 1991-10-18 Tanaka Kikinzoku Kogyo Kk Pierced earring

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03234203A (en) * 1990-02-08 1991-10-18 Tanaka Kikinzoku Kogyo Kk Pierced earring

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