JPH0263086B2 - - Google Patents

Info

Publication number
JPH0263086B2
JPH0263086B2 JP58069792A JP6979283A JPH0263086B2 JP H0263086 B2 JPH0263086 B2 JP H0263086B2 JP 58069792 A JP58069792 A JP 58069792A JP 6979283 A JP6979283 A JP 6979283A JP H0263086 B2 JPH0263086 B2 JP H0263086B2
Authority
JP
Japan
Prior art keywords
combustion chamber
chamber
center line
injection valve
main
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.)
Expired - Lifetime
Application number
JP58069792A
Other languages
Japanese (ja)
Other versions
JPS59194029A (en
Inventor
Tatsumi Kawakatsu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yanmar Co Ltd
Original Assignee
Yanmar Diesel Engine Co Ltd
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 Yanmar Diesel Engine Co Ltd filed Critical Yanmar Diesel Engine Co Ltd
Priority to JP58069792A priority Critical patent/JPS59194029A/en
Publication of JPS59194029A publication Critical patent/JPS59194029A/en
Publication of JPH0263086B2 publication Critical patent/JPH0263086B2/ja
Granted legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B19/00—Engines characterised by precombustion chambers
    • F02B19/14—Engines characterised by precombustion chambers with compression ignition
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B3/00—Engines characterised by air compression and subsequent fuel addition
    • F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Combustion Methods Of Internal-Combustion Engines (AREA)
  • Fuel-Injection Apparatus (AREA)

Description

【発明の詳細な説明】 本発明は主として、燃料噴射弁を、その中心線
がシリンダ中心線に対し一定角度傾斜するよう
に、シリンダヘツドに装着するデイーゼル機関の
予燃焼室に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention primarily relates to a pre-combustion chamber for a diesel engine in which a fuel injection valve is mounted on a cylinder head such that its center line is inclined at a constant angle with respect to the cylinder center line.

この種の予燃焼室に関して本願出願人は、燃焼
効率の向上を図つた発明を既に特願昭57−118095
において出願している。即ち第１図に示すよう
に、燃焼室口金１を主燃焼室２側からシリンダヘ
ツド３の口金嵌着用孔４に挿入嵌着することによ
り、主噴口６に連通する切落部分Ｄを小さくでき
るようにし、それにより容積比（総燃焼室容積に
対する予燃焼室８の容積の比）を大きくし、燃焼
効率を向上させるようにしたものである。７は燃
料噴射弁、９，１０は予燃焼室８を構成する前、
後室であつて、後室１０はその略全面が部分球面
状に形成されている。また口金１とシリンダヘツ
ド３との合せ面X1は上記後室１０の球心上にき
ている。 Regarding this type of pre-combustion chamber, the applicant of the present application has already published an invention in Japanese Patent Application No. 57-118095 aimed at improving combustion efficiency.
The application has been filed in . That is, as shown in FIG. 1, by inserting and fitting the combustion chamber mouthpiece 1 into the mouthpiece fitting hole 4 of the cylinder head 3 from the main combustion chamber 2 side, the cutout portion D communicating with the main nozzle port 6 can be made smaller. This increases the volume ratio (ratio of the volume of the pre-combustion chamber 8 to the total combustion chamber volume) and improves combustion efficiency. 7 is a fuel injection valve, 9 and 10 are before forming the pre-combustion chamber 8,
The rear chamber 10, which is a rear chamber, has substantially the entire surface formed in a partially spherical shape. Further, the mating surface X1 between the mouthpiece 1 and the cylinder head 3 is located on the spherical center of the rear chamber 10.

本発明は第１図のような予燃焼室の構造をさら
に改良して、予燃焼室の渦流を強化し、燃焼性能
を向上させようとするものであり、その要旨は、
後室の噴射弁側の部分を半球面状に形成し、後室
の前室側の部分を円筒状に形成し、円筒状部分の
直径に対する予燃焼室の噴射弁中心線方向の長さ
の比が大きくなるようにしたことである。以下図
面により本発明を説明する。 The present invention aims to further improve the structure of the pre-combustion chamber as shown in Fig. 1, strengthen the vortex flow in the pre-combustion chamber, and improve combustion performance.The gist thereof is as follows:
The part of the rear chamber on the side of the injection valve is formed into a hemispherical shape, and the part of the rear chamber on the side of the front chamber is formed into a cylindrical shape. This is to increase the ratio. The present invention will be explained below with reference to the drawings.

第２図において、シリンダヘツド１１には燃料
噴射弁装着用めねじ孔１２と、後室形成用の部分
球面状凹部１３と、口金嵌着用孔１４が形成され
ている。上記めねじ孔１２に燃料噴射弁１５が挿
入螺着され、燃料噴射弁１５は、その中心線O1
がシリンダ中心線O2に対し一定角度α（例えば
30゜）傾斜している。燃焼室口金１６は上下２つ
の部材１６ａ，１６ｂを接合面Ａにおいて溶着し
てなつている。（接合面Ａは噴射弁中心線O1に対
して直角である。口金１６は主燃焼室１９側から
上記嵌着用孔１４に嵌着され、ガスケツト２０を
介してシリンダブロツク２１の端面により脱落不
能に係止されている。口金１６の下端面はシリン
ダヘツド１１の下端面と同一平面状に揃つてい
る。口金１６の内部と上記シリンダヘツド１１の
凹部１３により予燃焼室１８が形成されている。 In FIG. 2, a cylinder head 11 is formed with a female threaded hole 12 for mounting a fuel injection valve, a partially spherical recess 13 for forming a rear chamber, and a hole 14 for fitting a base. A fuel injection valve 15 is inserted and screwed into the female threaded hole 12, and the fuel injection valve 15 has its center line O 1
is at a constant angle α ( e.g.
30°) inclined. The combustion chamber mouthpiece 16 is formed by welding two upper and lower members 16a and 16b at a joint surface A. (The joint surface A is perpendicular to the center line O 1 of the injection valve. The mouthpiece 16 is fitted into the fitting hole 14 from the main combustion chamber 19 side, and is prevented from falling off by the end face of the cylinder block 21 via the gasket 20. The lower end surface of the mouthpiece 16 is flush with the lower end surface of the cylinder head 11. A pre-combustion chamber 18 is formed by the inside of the mouthpiece 16 and the recess 13 of the cylinder head 11. .

予燃焼室１８は前記接合面Ａより主燃焼室１９
側の前室１７と、接合面Ａより噴射弁１５側の後
室２２とを備えている。後室２２の噴射弁１５側
の部分２２ａは半球面状に形成されており、後室
２２の前室１７側の部分２２ｂは円筒状に形成さ
れている。円筒状部分２２ｂの直径と半球面状部
分２２ａの直径は共にD2であり、両部分２２ａ，
２２ｂの周面は互いに滑らかにつながつている。
後室２２の中心線は噴射弁中心線O1と一致して
いる。また後室２２の渦流衝突面２３は噴射弁中
心線O1に対し直角に形成されている。一方前室
１７の中心線O4は噴射弁中心線O1と平行で、か
つシリンダ中心線O2とは反対側（第２図の右下
側）へ偏心している。即ち前室中心線O4を噴射
弁中心線O1に対して偏心させることにより、渦
流衝突面２３を広くし、燃料と空気がよく混り合
うようにしている。 The pre-combustion chamber 18 is connected to the main combustion chamber 19 from the joint surface A.
It includes a front chamber 17 on the side, and a rear chamber 22 on the side of the injection valve 15 from the joint surface A. A portion 22a of the rear chamber 22 on the injection valve 15 side is formed in a hemispherical shape, and a portion 22b of the rear chamber 22 on the front chamber 17 side is formed in a cylindrical shape. The diameter of the cylindrical portion 22b and the diameter of the hemispherical portion 22a are both D2 , and both portions 22a,
The circumferential surfaces of 22b are smoothly connected to each other.
The center line of the rear chamber 22 coincides with the injection valve center line O1 . Further, the vortex collision surface 23 of the rear chamber 22 is formed perpendicular to the injection valve center line O1 . On the other hand, the center line O 4 of the front chamber 17 is parallel to the injection valve center line O 1 and is eccentric to the side opposite to the cylinder center line O 2 (lower right side in FIG. 2). That is, by making the front chamber centerline O 4 eccentric with respect to the injection valve centerline O 1 , the vortex collision surface 23 is widened and fuel and air are mixed well.

ここで第２図に示す予燃焼室１８及び口金１６
と、第１図に示す予燃焼室８及び口金１とを比較
して説明すると、第２図の口金１６の高さH2は
第１図の口金高さH1より大幅に高くなつており、
第１図ではシリンダヘツド３の凹部３ａにより後
室１０の大半部分を形成しているが、第２図では
口金１６により後室２２の大半部分を形成してい
る。第２図の後室２２の直径D2は第１図の後室
１０の直径D1よりも小さく、また第２図の予燃
焼室１８の噴射弁中心線方向の長さL2は、前述
のように後室２２に円筒状部分２２ｂを設けるこ
とと口金１６を高くすることにより、第１図にお
ける予燃焼室長さL1よりも長くなつている。つ
まり第２図における予燃焼室１８の直径D2に対
する長さL2の比（L2／D2）は、第１図における
予燃焼室８の直径D1に対する長さL1の比（L1／
D1）よりも大きくなつている。いい換えれば第
２図の予燃焼室１８は第１図の予燃焼室８より
も、噴射弁中心線方向に細長く形成されている。 Here, the pre-combustion chamber 18 and the mouthpiece 16 shown in FIG.
Comparing and explaining the pre-combustion chamber 8 and the mouthpiece 1 shown in FIG. 1, the height H2 of the mouthpiece 16 in FIG. 2 is significantly higher than the height H1 of the mouthpiece in FIG. ,
In FIG. 1, the recess 3a of the cylinder head 3 forms the majority of the rear chamber 10, while in FIG. 2, the mouthpiece 16 forms the majority of the rear chamber 22. The diameter D 2 of the rear chamber 22 in FIG. 2 is smaller than the diameter D 1 of the rear chamber 10 in FIG. 1 , and the length L 2 of the pre-combustion chamber 18 in FIG. By providing the cylindrical portion 22b in the rear chamber 22 and increasing the height of the mouthpiece 16, the length of the precombustion chamber is longer than the length L1 in FIG. 1. In other words, the ratio (L 2 /D 2 ) of the length L 2 to the diameter D 2 of the pre-combustion chamber 18 in FIG. 2 is the ratio (L 2 /D 2 ) of the length L 1 to the diameter D 1 of the pre-combustion chamber 8 in FIG. 1 /
D1 ). In other words, the pre-combustion chamber 18 in FIG. 2 is formed to be more elongated in the direction of the center line of the injection valve than the pre-combustion chamber 8 in FIG. 1.

次に第２図の−断面を示す第３図におい
て、口金１６の主燃焼室側（第３図の紙面の表
側）には３つの主噴口２５が形成されており、そ
のうち１つは略シリンダ中心線O2に向き、残り
の２つはシリンダ円周方向に向いている。シリン
ダヘツド１１の端面には、各主噴口２５の中心線
O5と同心の部分円筒形状案内溝２６が形成され
ている。２８は吸気孔、２９は排気孔である。各
主噴口２５の前室側端部は、第２図に示すように
噴射弁中心線O1の延長線上に臨んでおり、噴射
燃料の一部が直接に主燃焼室１９に入るようにな
つている。また各溝２６に対応する口金部分に
は、切欠２７が形成されている。 Next, in FIG. 3, which shows the - cross section of FIG. The two are oriented toward the center line O 2 and the remaining two are oriented toward the cylinder circumference. The center line of each main nozzle 25 is marked on the end face of the cylinder head 11.
A partially cylindrical guide groove 26 concentric with O 5 is formed. 28 is an intake hole, and 29 is an exhaust hole. The front chamber side end of each main nozzle 25 faces an extension of the injector center line O1 , as shown in FIG. 2, so that a portion of the injected fuel directly enters the main combustion chamber 19. ing. Furthermore, a notch 27 is formed in the base portion corresponding to each groove 26.

口金１６の材料としては、耐熱鋼を用いる。さ
らに断熱効果を持たせるために、例えばセラミツ
ク（Si3N4）や、あるいは耐熱鋼にセラミツクコ
ーテイングをしたものを利用する。 As the material of the cap 16, heat-resistant steel is used. Furthermore, in order to provide a heat insulating effect, for example, ceramic (Si 3 N 4 ) or heat-resistant steel coated with ceramic is used.

第２図の３０はグロープラグである。このよう
なグロープラグ３０を用いると、極寒時（−25℃
以下）においても始動できるようになる。 30 in FIG. 2 is a glow plug. When such a glow plug 30 is used, it can be used in extreme cold (-25℃).
(below) will also be able to start.

第２図の予燃焼室１８内の矢印は渦流を示して
おり、この渦流は圧縮行程時において主噴口２５
から流入する空気によつて形成されるが、予燃焼
室１８の前記（L2／D2）が大きいことと、円筒
状部分２２ｂを形成していることにより、主噴口
２５から予燃焼室１８内に入る空気の助走路が長
くなることになり、それによりスワール（渦流）
が強くなり、燃焼性能が向上する。 The arrows in the pre-combustion chamber 18 in FIG.
However, due to the large ratio (L 2 /D 2 ) of the pre-combustion chamber 18 and the formation of the cylindrical portion 22b, the air flows from the main nozzle 25 to the pre-combustion chamber 18. The run-up path for the air entering the interior becomes longer, which creates a swirl.
becomes stronger and combustion performance improves.

以上説明したように本発明は、燃料噴射弁１５
をその中心線O1がシリンダ中心線O2に対し一定
角度傾斜するようにシリンダヘツド１１に装着
し、主燃焼室１９側の前室１７及び噴射弁１５側
の後室２２よりなる予燃焼室１８を形成するため
の燃焼室口金１６を、シリンダヘツド１１の口金
嵌着用孔１４に主燃焼室１９側から挿入嵌着し、
後室２２の噴射弁１５側の部分２２ａを半球面状
に形成し、後室２２の前室１７側の部分２２ｂを
円筒状に形成し、さらに予燃焼室１８の最大直径
である円筒状部分直径D2に対する予燃焼室１８
の噴射弁中心線O1方向の長さL2の比（L2／D2）
が大きくなるように構成しているので、次のよう
な利点がある。 As explained above, the present invention provides the fuel injection valve 15
is attached to the cylinder head 11 so that its center line O 1 is inclined at a certain angle with respect to the cylinder center line O 2 , and a pre-combustion chamber consisting of a front chamber 17 on the side of the main combustion chamber 19 and a rear chamber 22 on the side of the injection valve 15 is formed. The combustion chamber mouthpiece 16 for forming the combustion chamber 18 is inserted and fitted into the mouthpiece fitting hole 14 of the cylinder head 11 from the main combustion chamber 19 side,
A portion 22a of the rear chamber 22 on the injection valve 15 side is formed in a hemispherical shape, a portion 22b of the rear chamber 22 on the front chamber 17 side is formed in a cylindrical shape, and a cylindrical portion that is the maximum diameter of the precombustion chamber 18 is formed. Pre-combustion chamber 18 for diameter D 2
The ratio of the length L 2 in one direction of the injector center line O (L 2 /D 2 )
Since it is configured so that the value is large, there are the following advantages.

(1) 噴射弁１５を傾斜させているので、吸、排気
弁等の邪魔にならない位置に噴射弁１５を配置
することができ、噴射弁１５の組込作業が容易
になる。(1) Since the injection valve 15 is tilted, the injection valve 15 can be placed in a position where it does not interfere with intake and exhaust valves, etc., and the work of assembling the injection valve 15 is facilitated.

(2) 口金１６を主燃焼室１９側から孔１４に嵌着
するようにしているので、たとえ案内溝２６を
形成したとしても、案内溝２６の容積を必要最
小限度に小さくすることができる。従つて容積
比、即ち上死点状態における総燃焼室容積に対
する予燃焼室容積の割合を大きく、例えば50％
以上にすることができ、高速回転時の燃焼効率
が向上し、着火ミスもなくなる。(2) Since the cap 16 is fitted into the hole 14 from the main combustion chamber 19 side, even if the guide groove 26 is formed, the volume of the guide groove 26 can be reduced to the necessary minimum. Therefore, the volume ratio, that is, the ratio of the pre-combustion chamber volume to the total combustion chamber volume at top dead center, should be increased, for example, by 50%.
This can improve combustion efficiency during high-speed rotation and eliminate ignition errors.

(3) 後室２２の噴射弁側部分に半球面状部分２２
ａを形成し、後室２２の前室側部分に、上記半
球面状部分２２ａと同一直径で噴射弁中心線方
向に一定距離延びる円筒状部分２２ｂを形成し
ているので、従来第１図のように部分球面状の
後室に直接前室を連通する構造に比べ、予燃焼
室１８の最大直径D2に対する噴射弁中心線方
向の長さL2が大きく取れ、主噴口２５から流
入する空気の助走区間を長く取ることができ
る。(3) A hemispherical portion 22 is provided on the injection valve side portion of the rear chamber 22.
a, and a cylindrical portion 22b having the same diameter as the hemispherical portion 22a and extending a certain distance in the direction of the center line of the injection valve is formed on the front chamber side portion of the rear chamber 22. Compared to a structure in which the front chamber directly communicates with the partially spherical rear chamber, the length L 2 in the direction of the center line of the injector relative to the maximum diameter D 2 of the pre-combustion chamber 18 can be made larger, and the air flowing in from the main injection port 25 can be made larger. This allows for a longer run-up section.

従つてそれによりスワールを強くして燃焼性
能を向上させることができる。 Therefore, it is possible to strengthen the swirl and improve combustion performance.

(4) 口金１６の主燃焼室側には、主燃焼室１９に
開口する主噴口２５を３個形成し、３つの主噴
口２５の内１つはシリンダ中心線O2に向け、
残りの２つはシリンダ円周方向に向け、さらに
シリンダヘツド１１の端面には、各主噴口の中
心線O5と同心の部分円筒状案内溝２６を形成
しているので、予燃焼室内での着火後、予燃焼
室からガスが主燃焼室１９に移動して２次的混
合と燃焼が進行する場合に、予燃焼室からのガ
スは３つの主噴口２５からすみやかに主燃焼室
１９内全域に均一に拡がり、燃焼性能が向上す
る。(4) Three main nozzles 25 that open into the main combustion chamber 19 are formed on the main combustion chamber side of the mouthpiece 16, and one of the three main nozzles 25 faces toward the cylinder center line O 2 .
The remaining two are oriented in the circumferential direction of the cylinder, and a partial cylindrical guide groove 26 is formed on the end face of the cylinder head 11, which is concentric with the center line O5 of each main nozzle. After ignition, when gas moves from the pre-combustion chamber to the main combustion chamber 19 and secondary mixing and combustion progresses, the gas from the pre-combustion chamber quickly flows throughout the main combustion chamber 19 from the three main nozzles 25. spreads evenly, improving combustion performance.

なお本発明における口金１６は、必ずしも第２
図に示すような２分割構造にする必要はなく、例
えばロストワツクスを利用した中子を用い、一体
鋳造することもできる。 Note that the cap 16 in the present invention is not necessarily the second cap.
It is not necessary to have a two-part structure as shown in the figure; for example, it is also possible to use a core made of lost wax and integrally cast it.

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

第１図は従来例を示すデイーゼル機関の縦断面
部分図、第２図は本発明を適用したデイーゼル機
関の縦断面部分図、第３図は第２図の−断面
図である。１１……シリンダヘツド、１４……口
金嵌着用孔、１５……燃料噴射弁、１６……燃焼
室口金、１７……前室、１９……主燃焼室、２２
……後室、２２ａ……半球面状部分、２２ｂ……
円筒状部分。 FIG. 1 is a vertical cross-sectional partial view of a diesel engine showing a conventional example, FIG. 2 is a vertical cross-sectional partial view of a diesel engine to which the present invention is applied, and FIG. 3 is a cross-sectional view taken from FIG. DESCRIPTION OF SYMBOLS 11... Cylinder head, 14... Cap fitting hole, 15... Fuel injection valve, 16... Combustion chamber cap, 17... Front chamber, 19... Main combustion chamber, 22
... Posterior chamber, 22a ... Hemispherical portion, 22b ...
cylindrical part.

Claims (1)

【特許請求の範囲】[Claims] １ 燃料噴射弁１５をその中心線O1がシリンダ
中心線O2に対し一定角度傾斜するようにシリン
ダヘツド１１に装着し、主燃焼室側の前室１７及
び噴射弁側の後室２２よりなる予燃焼室を形成す
るための燃焼室口金１６を、シリンダヘツド１１
の口金嵌着用孔１４に主燃焼室側から挿入嵌着
し、上記後室２２の噴射弁側部分に半球面状部分
２２ａを形成し、後室２２の前室側部分に、上記
半球面状部分２２ａと同一直径で噴射弁中心線方
向に一定距離延びる円筒状部分２２ｂを形成し、
口金１６の主燃焼室側には、主燃焼室１９に開口
する主噴口２５を３個形成し、３つの主噴口２５
の内１つはシリンダ中心線O2に向け、残りの２
つはシリンダ円周方向に向け、さらにシリンダヘ
ツド１１の端面には、各主噴口の中心線O5と同
心の部分円筒状案内溝２６を形成したことを特徴
とするデイーゼル機関の予燃焼室。1. The fuel injection valve 15 is mounted on the cylinder head 11 so that its center line O1 is inclined at a certain angle with respect to the cylinder center line O2 , and consists of a front chamber 17 on the main combustion chamber side and a rear chamber 22 on the injection valve side. A combustion chamber mouthpiece 16 for forming a pre-combustion chamber is attached to the cylinder head 11.
The hemispherical portion 22a is formed in the injection valve side portion of the rear chamber 22, and the hemispherical portion 22a is formed in the front chamber side portion of the rear chamber 22. forming a cylindrical portion 22b having the same diameter as the portion 22a and extending a certain distance in the direction of the center line of the injection valve;
Three main nozzles 25 that open into the main combustion chamber 19 are formed on the main combustion chamber side of the nozzle 16.
One of them points toward the cylinder center line O 2 , and the other two
A pre-combustion chamber for a diesel engine, characterized in that a partial cylindrical guide groove 26 is formed on the end face of the cylinder head 11, one facing in the circumferential direction of the cylinder, and concentric with the center line O5 of each main injection port.
JP58069792A 1983-04-19 1983-04-19 Precombustion chamber for diesel engine Granted JPS59194029A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP58069792A JPS59194029A (en) 1983-04-19 1983-04-19 Precombustion chamber for diesel engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58069792A JPS59194029A (en) 1983-04-19 1983-04-19 Precombustion chamber for diesel engine

Publications (2)

Publication Number Publication Date
JPS59194029A JPS59194029A (en) 1984-11-02
JPH0263086B2 true JPH0263086B2 (en) 1990-12-27

Family

ID=13412944

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58069792A Granted JPS59194029A (en) 1983-04-19 1983-04-19 Precombustion chamber for diesel engine

Country Status (1)

Country Link
JP (1) JPS59194029A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5011847U (en) * 1973-05-30 1975-02-06
JPS5147921U (en) * 1974-10-09 1976-04-09

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5011847U (en) * 1973-05-30 1975-02-06
JPS5147921U (en) * 1974-10-09 1976-04-09

Also Published As

Publication number Publication date
JPS59194029A (en) 1984-11-02

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