JPS6379435U - - Google Patents

Info

Publication number
JPS6379435U
JPS6379435U JP17459186U JP17459186U JPS6379435U JP S6379435 U JPS6379435 U JP S6379435U JP 17459186 U JP17459186 U JP 17459186U JP 17459186 U JP17459186 U JP 17459186U JP S6379435 U JPS6379435 U JP S6379435U
Authority
JP
Japan
Prior art keywords
combustion chamber
side cavity
piston
swirl chamber
nozzle hole
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
JP17459186U
Other languages
Japanese (ja)
Other versions
JP2545357Y2 (en
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 JP1986174591U priority Critical patent/JP2545357Y2/en
Priority to US07/080,508 priority patent/US4785776A/en
Priority to DE3725485A priority patent/DE3725485A1/en
Publication of JPS6379435U publication Critical patent/JPS6379435U/ja
Application granted granted Critical
Publication of JP2545357Y2 publication Critical patent/JP2545357Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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、
同図Ｂはそのピストンの平面図である。第２図Ａ
は本考案の他の実施例の要部縦断面図、同図Ｂは
そのピストンの平面図である。第３図Ａはさらに
他の実施例の要部縦断面図、同図Ｂはそのピスト
ンの平面図である。第４図Ａは従来例の要部縦断
面図、同図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、１２，２０
……大キヤビテイ部、１３，２３……分散台、１
４，２２……側方キヤビテイ部、１８，２５……
外殻、１８Ａ，２５Ａ……ガイド部。 FIG. 1A is a vertical cross-sectional view of a main part of an embodiment of the present invention;
Figure B is a plan view of the piston. Figure 2A
1 is a vertical cross-sectional view of a main part of another embodiment of the present invention, and FIG. 1B is a plan view of the piston. FIG. 3A is a vertical sectional view of a main part of still another embodiment, and FIG. 3B is a plan view of the piston. FIG. 4A is a longitudinal cross-sectional view of a main part of a conventional example, and FIG. 4B is a plan view of the piston. 3...Piston, 4...Cylinder head, 5...
... Vortex chamber, 6 ... Nozzle hole, 8 ... Piston top surface, 9
...Main combustion chamber, 11...Trench part, 12, 20
...Large cavity part, 13,23...Dispersion table, 1
4, 22... Side cavity part, 18, 25...
Outer shell, 18A, 25A...Guide part.

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において
、ピストン頂面に、ピストン中心付近の領域から
略円形に広がる左右の大キヤビテイ部と、噴孔の
下方にあたるトレンチ部から分岐して各大キヤビ
テイ部に連通する左右の側方キヤビテイ部とを形
成し、この側方キヤビテイ部を画成する外殻に、
側方キヤビテイ部を通過する噴流を大キヤビテイ
部で生起される旋回流に対して略接線方向から合
流させるように案内するガイド部を形成したこと
を特徴とする渦流室式デイーゼル機関の燃焼室。 In the combustion chamber of a swirl chamber type diesel engine in which the nozzle hole from the swirl chamber is opened near the edge of the main combustion chamber, large left and right cavities on the top surface of the piston extend approximately circularly from an area near the center of the piston; Forming left and right side cavity parts that branch from the trench part below the nozzle hole and communicating with each large cavity part, and in the outer shell defining these side cavity parts,
A combustion chamber for a swirl chamber type diesel engine, characterized in that a guide part is formed for guiding a jet flow passing through a side cavity part so that it joins the swirling flow generated in a large cavity part in a substantially tangential direction.
JP1986174591U 1986-08-08 1986-11-13 Combustion chamber of a swirl chamber type diesel engine Expired - Lifetime JP2545357Y2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP1986174591U JP2545357Y2 (en) 1986-11-13 1986-11-13 Combustion chamber of a swirl chamber type diesel engine
US07/080,508 US4785776A (en) 1986-08-08 1987-07-24 Diesel engine having shaped flame dispersing recess in piston crown
DE3725485A DE3725485A1 (en) 1986-08-08 1987-07-31 DIESEL ENGINE WITH DEPTH IN THE PISTON BOTTOM FOR THE CONTROLLED SPREADING OF THE FLAME FRONT

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1986174591U JP2545357Y2 (en) 1986-11-13 1986-11-13 Combustion chamber of a swirl chamber type diesel engine

Publications (2)

Publication Number Publication Date
JPS6379435U true JPS6379435U (en) 1988-05-25
JP2545357Y2 JP2545357Y2 (en) 1997-08-25

Family

ID=31113119

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1986174591U Expired - Lifetime JP2545357Y2 (en) 1986-08-08 1986-11-13 Combustion chamber of a swirl chamber type diesel engine

Country Status (1)

Country Link
JP (1) JP2545357Y2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0343618A (en) * 1989-07-10 1991-02-25 Nissan Motor Co Ltd Combustion chamber of vortex chamber diesel engine
JP2015522122A (en) * 2012-07-02 2015-08-03 ピナクル・エンジンズ・インコーポレイテッドＰｉｎｎａｃｌｅ Ｅｎｇｉｎｅｓ， Ｉｎｃ． Variable compression ratio diesel engine

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5230511U (en) * 1975-08-27 1977-03-03
JPS5420204A (en) * 1977-07-18 1979-02-15 Hino Motors Ltd Piston of precombustion chamber type diersel engine

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5230511B2 (en) * 1972-05-11 1977-08-09

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5230511U (en) * 1975-08-27 1977-03-03
JPS5420204A (en) * 1977-07-18 1979-02-15 Hino Motors Ltd Piston of precombustion chamber type diersel engine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0343618A (en) * 1989-07-10 1991-02-25 Nissan Motor Co Ltd Combustion chamber of vortex chamber diesel engine
JP2015522122A (en) * 2012-07-02 2015-08-03 ピナクル・エンジンズ・インコーポレイテッドＰｉｎｎａｃｌｅ Ｅｎｇｉｎｅｓ， Ｉｎｃ． Variable compression ratio diesel engine

Also Published As

Publication number Publication date
JP2545357Y2 (en) 1997-08-25

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