JPS5991420U - Swirl chamber diesel engine - Google Patents

Swirl chamber diesel engine

Info

Publication number
JPS5991420U
JPS5991420U JP18903782U JP18903782U JPS5991420U JP S5991420 U JPS5991420 U JP S5991420U JP 18903782 U JP18903782 U JP 18903782U JP 18903782 U JP18903782 U JP 18903782U JP S5991420 U JPS5991420 U JP S5991420U
Authority
JP
Japan
Prior art keywords
valves
pair
circular parts
diameter
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
JP18903782U
Other languages
Japanese (ja)
Inventor
江藤　幸寛
利明 田中
兼先　伸和
Original Assignee
日産自動車株式会社
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 by 日産自動車株式会社 filed Critical 日産自動車株式会社
Priority to JP18903782U priority Critical patent/JPS5991420U/en
Publication of JPS5991420U publication Critical patent/JPS5991420U/en
Pending legal-status Critical Current

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  • Combustion Methods Of Internal-Combustion Engines (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

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

第１図は従来の渦流室式ディーゼルエンジンを示す概略
縦断面図、第２図は第１図の■−■矢視断面図、第３図
は第２図の■−■矢視断面図、第４図は第１図で示すピ
ストンの平面図、第５図はこの考案に係る渦流室式ディ
ーゼルエンジンの一゛実施例を示す概略縦断面図、第６
図は第５図で示すピストンの平面図である。 １・・・・・・シリンダブロック、２・・・・・・シリ
ンダ孔、３・・・・・・ピストン、４・・・・・・シリ
ンダヘッド、５・・・・・・主燃焼室、６・・・・・・
渦流室、９・・・・・・連絡孔、１０゜１１・・・・・
・吸・排気ポート、１２．１３・・・・・・吸・排気バ
ルブ、１８・・・・・・キャビティ、３１．３２・・・
・・・円状キャビティ部（円状部）、３３・・・・・・
溝状キャビティ部（溝状部）、３４．３５・・・・・・
湾曲面、４１．４２・・・・・・周壁面、４３・・・・
・・側壁面。Fig. 1 is a schematic vertical sectional view showing a conventional swirl chamber type diesel engine, Fig. 2 is a sectional view taken along the ■-■ arrow in Fig. 1, and Fig. 3 is a sectional view taken along the -■ arrow in Fig. 2. 4 is a plan view of the piston shown in FIG. 1, FIG. 5 is a schematic vertical sectional view showing an embodiment of the swirl chamber type diesel engine according to this invention, and FIG. 6 is a plan view of the piston shown in FIG.
The figure is a plan view of the piston shown in FIG. 5. 1... Cylinder block, 2... Cylinder hole, 3... Piston, 4... Cylinder head, 5... Main combustion chamber, 6...
Vortex chamber, 9...Communication hole, 10°11...
・Intake/exhaust port, 12.13... Intake/exhaust valve, 18... Cavity, 31.32...
...Circular cavity part (circular part), 33...
Groove cavity part (groove part), 34.35...
Curved surface, 41.42... Peripheral wall surface, 43...
...Side wall surface.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] シリンダ孔が形成されたシリンダブロックと、シリンダ
孔に摺動自在に嵌合され、頂面に開口するキャビティが
形成されたピストンと、シリンダブロックおよびピスト
ンとで主燃焼室を画成するとともに、主燃焼室に連絡孔
を介して開口する過流室および吸・排気ポートが形成さ
れたシリンダヘッドと、吸・排気ポートをそれぞれ開閉
する吸気バルブおよび排気バルブと、を備えた渦流室式
ディーゼルエンジンにおいて、前記キャビティを、前記
両バルブが突出可能なようにこれらめ両バルブに対向配
置され、両バルブの径よりも大きな径を有する一対の円
状部と、ピストンの大路上死点°　　−位置において一
端が前記連絡孔近傍に位置し他端が円状部の連結部分に
連結する溝状部と、から形成するとともに、該溝状部の
側壁面と一対の円状部の周壁面とを滑らかな曲面で連続
したことを特徴とする渦流室式ディーゼルエンジン。A cylinder block in which a cylinder hole is formed, a piston that is slidably fitted into the cylinder hole and has a cavity opening on the top surface, and the cylinder block and piston define a main combustion chamber. In a swirl chamber type diesel engine equipped with a cylinder head in which an overflow chamber and an intake/exhaust port are formed that open into a combustion chamber through a communication hole, and an intake valve and an exhaust valve that open and close the intake and exhaust ports, respectively. , the cavity is defined by a pair of circular parts which are disposed opposite to the two valves so that the two valves can protrude, and which have a diameter larger than the diameter of both the valves, and a pair of circular parts having a diameter larger than the diameter of both the valves, and a pair of circular parts that are arranged opposite to the two valves so that the two valves can protrude, and a pair of circular parts having a diameter larger than the diameter of both the valves, and a pair of circular parts having a diameter larger than the diameter of both the valves, and a pair of circular parts that are arranged opposite to the two valves so that the two valves can protrude. a groove-like part with one end located near the communication hole and the other end connected to the connecting part of the circular part, and the side wall surface of the groove-like part and the peripheral wall surface of the pair of circular parts are smooth. A swirl chamber type diesel engine characterized by a continuous curved surface.
JP18903782U 1982-12-14 1982-12-14 Swirl chamber diesel engine Pending JPS5991420U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18903782U JPS5991420U (en) 1982-12-14 1982-12-14 Swirl chamber diesel engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18903782U JPS5991420U (en) 1982-12-14 1982-12-14 Swirl chamber diesel engine

Publications (1)

Publication Number Publication Date
JPS5991420U true JPS5991420U (en) 1984-06-21

Family

ID=30407668

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18903782U Pending JPS5991420U (en) 1982-12-14 1982-12-14 Swirl chamber diesel engine

Country Status (1)

Country Link
JP (1) JPS5991420U (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62276212A (en) * 1986-05-23 1987-12-01 Kubota Ltd Swirl chamber-type combustion chamber of diesel engine
JPS62276211A (en) * 1986-05-23 1987-12-01 Kubota Ltd Swirl chamber-type combustion chamber of diesel engine
JPS635110A (en) * 1986-06-26 1988-01-11 Kubota Ltd Whirl chamber type combustion chamber of diesel engine
JPS634329U (en) * 1986-06-26 1988-01-12
JPH02145629U (en) * 1989-05-15 1990-12-11

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS572650U (en) * 1980-06-05 1982-01-08

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS572650U (en) * 1980-06-05 1982-01-08

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62276212A (en) * 1986-05-23 1987-12-01 Kubota Ltd Swirl chamber-type combustion chamber of diesel engine
JPS62276211A (en) * 1986-05-23 1987-12-01 Kubota Ltd Swirl chamber-type combustion chamber of diesel engine
JPS635110A (en) * 1986-06-26 1988-01-11 Kubota Ltd Whirl chamber type combustion chamber of diesel engine
JPS634329U (en) * 1986-06-26 1988-01-12
JPH02145629U (en) * 1989-05-15 1990-12-11

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