JPH087059Y2 - 2-cycle diesel engine - Google Patents
2-cycle diesel engineInfo
- Publication number
- JPH087059Y2 JPH087059Y2 JP14591589U JP14591589U JPH087059Y2 JP H087059 Y2 JPH087059 Y2 JP H087059Y2 JP 14591589 U JP14591589 U JP 14591589U JP 14591589 U JP14591589 U JP 14591589U JP H087059 Y2 JPH087059 Y2 JP H087059Y2
- Authority
- JP
- Japan
- Prior art keywords
- vertical plane
- fresh air
- port
- exhaust
- air supply
- 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
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- Combustion Methods Of Internal-Combustion Engines (AREA)
Description
【考案の詳細な説明】 〔産業上の利用分野〕 本考案は２サイクルディーゼル機関に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a two-stroke diesel engine.
シリンダヘッドに給気弁および排気弁を設けた副室付
２サイクルディーゼル機関において、給気ポートおよび
排気ポートを、給気弁かさ部および排気弁かさ部の中心
を通る中心直線に沿って反対方向に形成し、排気弁側の
給気弁周辺部に排気弁側の給気弁開口からの新気の流入
を抑制するマスク壁を、中心直線を中心として反対方向
にほぼ1/5円周ずつ延びるように形成して中心直線を含
む垂直平面内において新気をループ状に流通せしめ、こ
の垂直平面から離れた領域でかつマスク壁により新気の
流入が阻止される領域のシリンダヘッド内壁面上に副室
の噴口を配置するようにした２サイクルディーゼル機関
が本出願人により既に提案されている（実願平1-9445号
参照）。In a two-cycle diesel engine with a sub chamber in which a cylinder head is provided with an intake valve and an exhaust valve, the intake port and the exhaust port are in opposite directions along a central straight line passing through the centers of the intake valve cap and the exhaust valve cap. A mask wall that suppresses the inflow of fresh air from the intake valve opening on the exhaust valve side is formed around the intake valve on the exhaust valve side in approximately 1/5 circles in opposite directions about the center straight line. On the inner wall surface of the cylinder head in a region apart from this vertical plane and in a region where the fresh air is blocked by the mask wall, is formed so as to extend and allows fresh air to flow in a loop in a vertical plane including the center straight line. The applicant has already proposed a two-cycle diesel engine in which a sub-chamber nozzle is arranged (see Japanese Utility Model Application No. 1-9445).
しかしながら垂直平面から離れた領域でかつマスク壁
により新気の流入が阻止される領域には多量の既燃ガス
が残留したままとなっている。従って副室の噴口をこの
ような領域のシリンダヘッド内壁面上に配置すると圧縮
行程時に多量の既燃ガスが噴口を介して副室内に送り込
まれることとなり、斯くして副室内の新気が不十分とな
るために副室内において良好な着火燃焼を確保できない
という問題を生ずる。However, a large amount of burned gas remains in the region away from the vertical plane and in the region where the inflow of fresh air is blocked by the mask wall. Therefore, if the injection port of the sub chamber is arranged on the inner wall surface of the cylinder head in such an area, a large amount of burned gas is sent into the sub chamber through the injection port during the compression stroke, and thus the fresh air in the sub chamber is not discharged. As a result, sufficient ignition and combustion cannot be ensured in the sub chamber.
上記問題点を解決するために本考案によれば、シリン
ダヘッドに給気弁および排気弁を設けた副室付２サイク
ルディーゼル機関において、給気ポートおよび排気ポー
トを、給気弁かさ部と排気弁かさ部の中心を含む第１の
垂直平面に対して互いに同じ側に延びるように形成し、
排気弁側の給気弁周辺部に排気弁側の給気弁開口からの
新気の流入を抑制する新気流入抑制壁を設け、第１の垂
直平面に対して給気ポートと反対側の新気流入抑制壁端
部と給気弁かさ部の中心とを含む第２の垂直平面と、第
１の垂直平面に対して排気ポート側の排気弁かさ部周辺
に接するように給気弁かさ部の中心から延びる第３の垂
直平面とに囲まれる領域のうち排気弁かさ部が存在しな
い領域内に副室の噴口を配置している。According to the present invention to solve the above problems, in a two-cycle diesel engine with a sub chamber in which a cylinder head is provided with an intake valve and an exhaust valve, the intake port and the exhaust port are provided with an intake valve cap and an exhaust valve. Formed so as to extend on the same side with respect to the first vertical plane including the center of the valve cap,
A fresh air inflow suppression wall that suppresses the inflow of fresh air from the exhaust valve side intake valve opening is provided in the vicinity of the exhaust valve side intake valve, and is located on the side opposite to the intake port with respect to the first vertical plane. A second vertical plane including the end of the fresh air inflow suppression wall and the center of the air supply valve cap, and the air supply valve cap so as to be in contact with the vicinity of the exhaust valve cap on the exhaust port side with respect to the first vertical plane. The injection port of the sub chamber is arranged in a region surrounded by the third vertical plane extending from the center of the portion where the exhaust valve bulkhead does not exist.
新気は、新気流入抑制壁が設けられていない給気弁開
口から流入して副室の噴口に達し、圧縮行程時に新気が
噴口を介して副室内に送り込まれる。The fresh air flows in from the air supply valve opening not provided with the fresh air inflow suppression wall and reaches the injection port of the sub chamber, and the fresh air is sent into the sub chamber through the injection port during the compression stroke.
第１図および第２図を参照すると、１はシリンダブロ
ック、２はシリンダブロック１内で往復動するピスト
ン、３はシリンダヘッド、４はピストン２の平坦な頂面
とシリンダヘッド３の平坦な内壁面3a間に形成された燃
焼室、５は給気弁、６は給気ポート、７は排気弁、８は
排気ポート、９は副室、10はシリンダヘッド３の内壁面
3aと同一平面内に配置された副室９の噴口、11は副室９
内に燃料を噴射するための燃料噴射弁を夫々示す。Referring to FIGS. 1 and 2, 1 is a cylinder block, 2 is a reciprocating piston in the cylinder block 1, 3 is a cylinder head, 4 is a flat top surface of the piston 2 and a flat inner surface of the cylinder head 3. A combustion chamber formed between the wall surfaces 3a, 5 is an air supply valve, 6 is an air supply port, 7 is an exhaust valve, 8 is an exhaust port, 9 is a sub chamber, and 10 is an inner wall surface of the cylinder head 3.
Nozzle of sub chamber 9 arranged in the same plane as 3a, 11 is sub chamber 9
Fuel injection valves for injecting fuel are shown therein, respectively.
第１図に示されるように給気弁５および排気弁７は、
夫々のかさ部の中心OIおよびOEが燃焼室４の中心Ｏに対
して点対称となるように配置される。従って給気弁５か
さ部の中心OIおよび排気弁７かさ部の中心OEは直径Ｄを
含む第１の垂直平面Ａ−Ａ内に位置している。給気ポー
ト６および排気ポート８は直径Ｄを含む垂直平面Ａ−Ａ
に対して90度方向に延びており、この垂直平面Ａ−Ａに
対して互いに同じ側に延びている。As shown in FIG. 1, the intake valve 5 and the exhaust valve 7 are
The centers OI and OE of the respective bulkheads are arranged point-symmetrically with respect to the center O of the combustion chamber 4. Therefore, the center OI of the air supply valve 5 and the center OE of the exhaust valve 7 are located in the first vertical plane AA including the diameter D. The intake port 6 and the exhaust port 8 have a vertical plane A-A including a diameter D.
With respect to the vertical plane AA and extend on the same side as each other.
第２図に示されるようにシリンダヘッド３の内壁面3a
上には凹溝12が形成され、この凹溝12の奥部に給気弁５
に対する弁座13が配置される。従って給気弁５全閉時に
おいては給気弁５は凹溝12内に埋没することになる。給
気弁７側の凹溝12の周壁は給気弁５のかさ部外周線に近
接配置された円筒状に形成され、従ってこの円筒状周壁
は排気弁７側の給気弁５の開口を覆うマスク壁14を形成
する。一方、マスク壁14と反対側の凹溝12の周壁部分15
は燃焼室14内に向けて拡開する円錐状に形成される。こ
の周壁部分15とシリンダヘッド３の内壁面3aとがなす給
気弁リセス角は約45度とされる。第１図に示されるよう
にマスク壁14は垂直平面Ａ−Ａに対し対称に形成されて
いる。このマスク壁14は給気弁４かさ部の中心OIから排
気弁７のかさ部外周線に延びる２つの接線OI−Ｆを越え
て給気弁５のかさ部外周線に沿って延びており、例えば
給気弁５のかさ部外周線に沿ってそのほぼ1/4周に亘っ
て延び、残りのほぼ3/4周は円錐状周壁部分15となって
いる。As shown in FIG. 2, the inner wall surface 3a of the cylinder head 3
A concave groove 12 is formed on the upper side, and the air supply valve 5 is provided at the inner portion of the concave groove 12.
A valve seat 13 for is arranged. Therefore, when the air supply valve 5 is fully closed, the air supply valve 5 is buried in the concave groove 12. The peripheral wall of the concave groove 12 on the air supply valve 7 side is formed in a cylindrical shape that is arranged close to the outer peripheral line of the bulk portion of the air supply valve 5, and therefore this cylindrical peripheral wall forms the opening of the air supply valve 5 on the exhaust valve 7 side. Form a mask wall 14 to cover. On the other hand, the peripheral wall portion 15 of the concave groove 12 on the side opposite to the mask wall 14
Is formed into a conical shape that expands toward the inside of the combustion chamber 14. The inlet valve recess angle formed by the peripheral wall portion 15 and the inner wall surface 3a of the cylinder head 3 is about 45 degrees. As shown in FIG. 1, the mask wall 14 is formed symmetrically with respect to the vertical plane AA. The mask wall 14 extends along the outer periphery of the air supply valve 5 beyond two tangents OI-F extending from the center OI of the outer air supply valve 4 to the outer periphery of the air exhaust valve 7. For example, the air supply valve 5 extends along the outer circumference of the bulge portion over approximately 1/4 of its circumference, and the remaining approximately 3/4 circumference is a conical peripheral wall portion 15.
第１図から第３図を参照すると、給気弁５が開弁する
と給気ポート６内を第１図に矢印Ｎで示す方向に流れて
きた新気が燃焼室４内に流入する。このとき燃焼室４内
に流入する新気は矢印Ｎ方向の速度成分を有するため、
また給気弁５のかさ部外周線に沿ってマスク壁14が形成
されているため、大部分の新気は垂直平面Ａ−Ａに対し
て給気ポート６と反対側の円錐状内周壁15に沿って矢印
Ｓで示すように燃焼室４内に流入することになる。マス
ク壁14は排気弁７側の給気弁５開口からの新気の流入を
抑制する新気流入抑制壁を形成している。次いで新気は
シリンダ内壁面に沿って下降し、次いでピストン２の頂
面に沿ってピストン２の頂面を横切り、次いで再びシリ
ンダ内壁面に沿って上昇するために燃焼室４内には強力
なループ掃気流Ｓが発生せしめられる。燃焼室４内の既
燃ガスはこのループ掃気流Ｓによって順次排気弁７を介
して排気ポート８内に押し出される。Referring to FIGS. 1 to 3, when the air supply valve 5 is opened, the fresh air flowing in the air supply port 6 in the direction indicated by the arrow N in FIG. 1 flows into the combustion chamber 4. At this time, since the fresh air flowing into the combustion chamber 4 has a velocity component in the direction of arrow N,
Further, since the mask wall 14 is formed along the outer circumference of the bulge portion of the air supply valve 5, most of the fresh air is conical inner peripheral wall 15 on the side opposite to the air supply port 6 with respect to the vertical plane AA. Will flow into the combustion chamber 4 as indicated by the arrow S. The mask wall 14 forms a fresh air inflow suppressing wall that suppresses the inflow of fresh air from the opening of the air supply valve 5 on the exhaust valve 7 side. Then, the fresh air descends along the inner wall surface of the cylinder, then crosses the top surface of the piston 2 along the top surface of the piston 2, and then rises again along the inner wall surface of the cylinder. A loop scavenging air S is generated. The burnt gas in the combustion chamber 4 is sequentially pushed out by the loop scavenging air S into the exhaust port 8 via the exhaust valve 7.
ところで前述のように大部分の新気は垂直平面Ａ−Ａ
に対して給気ポート６と反対側の円錐状内周壁15に沿っ
て燃焼室４内に流入する。その結果、新気は第１図に示
すように垂直平面Ａ−Ａをシリンダ軸線に関して回転し
た垂直平面Ｂ−Ｂ内においてループ状に流れることにな
る。ところで第１図に示すように噴口10は、垂直平面Ａ
−Ａに対して給気ポート６と反対側のマスク壁端部14a
と給気弁５かさ部の中心OIを含む第２の垂直平面Ｃ−Ｃ
に対して第１図中の上側、かつ垂直平面Ａ−Ａに対して
第１図中の上側の領域θ1内であって、ほぼ垂直平面Ｂ
−Ｂ内に配置されている。従って圧縮行程が開始される
ころには噴口10下方の燃焼室４の周辺領域には多量の新
気が存在することになる。従って圧縮行程が開始される
と多量の新気が噴口10を介して副室９内に押し込まれる
ことになり、斯くして副室９内に噴射された燃料が良好
に着火燃焼せしめられることになる。By the way, as mentioned above, most of the fresh air is vertical plane AA.
On the other hand, the gas flows into the combustion chamber 4 along the conical inner peripheral wall 15 on the side opposite to the air supply port 6. As a result, the fresh air will flow in a loop in a vertical plane BB rotated about the cylinder axis in the vertical plane AA as shown in FIG. By the way, as shown in FIG.
-A mask wall end 14a on the side opposite to the air supply port 6 with respect to A
And a second vertical plane C-C including the center OI of the air supply valve 5
With respect to the upper side in FIG. 1 and the vertical plane AA within the region θ 1 in the upper side in FIG.
-Located in B. Therefore, when the compression stroke is started, a large amount of fresh air is present in the peripheral region of the combustion chamber 4 below the injection port 10. Therefore, when the compression stroke is started, a large amount of fresh air is pushed into the sub chamber 9 through the injection port 10, and thus the fuel injected into the sub chamber 9 is satisfactorily ignited and burned. Become.
なお噴口10を垂直平面Ｂ−Ｂ内に配置する必要はな
く、第４図において10aまたは10bで示されるように領域
θ1内で垂直平面Ｂ−Ｂから離れた位置に配置してもよ
い。噴口10aのように垂直平面Ｂ−Ｂに対して第４図中
の左側に噴口10aを配置した場合、給気弁５の開口から
燃焼室４内に流入する新気のシリンダ内壁面3aに沿う流
れの近傍に噴口10aが位置するため、噴口10a付近には多
量の新気が存在し第１図から第３図に示す実施例と同様
に副室９内に噴射された燃料が良好に着火燃焼せしめら
れることになる。The injection port 10 does not have to be arranged on the vertical plane BB, but may be arranged at a position apart from the vertical plane BB in the region θ 1 as shown by 10a or 10b in FIG. When the injection port 10a is arranged on the left side in FIG. 4 with respect to the vertical plane B-B like the injection port 10a, it follows the cylinder inner wall surface 3a of fresh air flowing into the combustion chamber 4 through the opening of the intake valve 5. Since the injection port 10a is located in the vicinity of the flow, a large amount of fresh air exists near the injection port 10a, and the fuel injected into the sub-chamber 9 is satisfactorily ignited as in the embodiment shown in FIGS. 1 to 3. It will be burned.
また噴口10bのように垂直平面Ｂ−Ｂに対して第４図
中の右側に噴口10bを配置した場合、給気弁５開口から
流入する新気はマスク壁14によって妨たげられることな
く一部の新気は噴口10bに流れ、さらに排気弁７閉弁後
においては、垂直平面Ｂ−Ｂ内の流れに対して矢印Ｎ方
向の流れが相対的に強まり、これによって排気弁７開弁
期間内におけるより多くの新気が噴口10bに向かうこと
となり、斯くして副室９内に噴射された燃料が良好に着
火燃焼せしめられる。Further, when the injection port 10b is arranged on the right side in FIG. 4 with respect to the vertical plane BB like the injection port 10b, the fresh air flowing from the opening of the air supply valve 5 is partially prevented without being blocked by the mask wall 14. Fresh air flows to the injection port 10b, and after the exhaust valve 7 is closed, the flow in the direction of the arrow N becomes stronger relative to the flow in the vertical plane B-B, which causes the exhaust valve 7 to open. As a result, a larger amount of fresh air in the fuel cell 10 is directed to the injection port 10b, and thus the fuel injected into the sub chamber 9 is satisfactorily ignited and burned.
第５図および第６図には別の実施例を示す。この実施
例において第１図から第３図に示す実施例と同様な構成
要素は同一の符号で示す。Another embodiment is shown in FIGS. 5 and 6. In this embodiment, components similar to those in the embodiment shown in FIGS. 1 to 3 are designated by the same reference numerals.
第５図を参照すると、副室９は給気ポート６と排気ポ
ート８の間に配置され、このため給気弁５および排気弁
７から給気ポート６および排気ポート８は相互に離れる
方向に傾斜して延びている。副室９の噴口10は、垂直平
面Ａ−Ａに対して排気ポート８側の排気弁７かさ部周辺
に接するように給気弁５かさ部中心OIから延びる第３の
垂直平面OI−Ｆに対して第５図中の下側、かつ垂直平面
Ａ−Ａに対して第５図中の下側の領域θ2内であって垂
直平面Ｂ−Ｂ近傍に配置されている。従って圧縮行程が
開始されるころには噴口10下方の燃焼室４の周辺領域に
は多量の新気が存在することになる。従って圧縮行程が
開始されると多量の新気が噴口10を介して副室９内に押
し込まれることになり、斯くして副室９内に噴射された
燃料が良好に着火燃焼せしめられることになる。Referring to FIG. 5, the sub-chamber 9 is disposed between the air supply port 6 and the exhaust port 8, so that the air supply port 5 and the exhaust port 7 are separated from the air supply port 6 and the exhaust port 8 in a direction away from each other. It extends obliquely. The injection port 10 of the sub-chamber 9 is provided on a third vertical plane OI-F extending from the air supply valve 5 central portion OI so as to be in contact with the periphery of the exhaust valve 7 on the exhaust port 8 side with respect to the vertical plane AA. On the other hand, it is arranged on the lower side in FIG. 5 and in the lower area θ 2 in FIG. 5 with respect to the vertical plane AA and in the vicinity of the vertical plane BB. Therefore, when the compression stroke is started, a large amount of fresh air exists in the peripheral region of the combustion chamber 4 below the injection port 10. Therefore, when the compression stroke is started, a large amount of fresh air is pushed into the sub chamber 9 through the injection port 10, and thus the fuel injected into the sub chamber 9 is satisfactorily ignited and burned. Become.
なお前述と同様にこの噴口10を領域θ2内で垂直平面
Ｂ−Ｂから離れた位置に配置してもよい。すなわち、垂
直平面Ｂ−Ｂに対して第５図中の右側に噴口10aを配置
した場合、新気のシリンダ内壁面3aに沿う流れの近傍に
噴口10が位置するため、噴口10付近には多量の新気が存
在し、副室９内に噴射された燃料が良好に着火燃焼せし
められることになる。一方垂直平面Ｂ−Ｂに対して第５
図中の左側に噴口10を配置した場合、給気弁５開口から
流入する新気はマスク壁14によって妨たげられることな
く一部の新気は噴口10に流れ、さらに排気弁７閉弁後に
おいては、垂直平面Ｂ−Ｂ内の流れに対して矢印Ｎ方向
の流れが相対的に強まり、これによって排気弁７開弁期
間内におけるより多くの新気が噴口10に向かうことな
り、斯くして副室９内に噴射された燃料が良好に着火燃
焼せしめられる。Note that, similarly to the above, the injection port 10 may be arranged in the region θ 2 at a position apart from the vertical plane BB. That is, when the injection port 10a is arranged on the right side in FIG. 5 with respect to the vertical plane B-B, the injection port 10 is located in the vicinity of the flow of the fresh air along the cylinder inner wall surface 3a. Therefore, the fresh air is present, and the fuel injected into the sub chamber 9 is satisfactorily ignited and burned. On the other hand, the fifth with respect to the vertical plane B-B
When the injection port 10 is arranged on the left side of the drawing, the fresh air flowing in from the opening of the air supply valve 5 is not obstructed by the mask wall 14 and a part of the fresh air flows to the injection port 10, and after the exhaust valve 7 is closed. , The flow in the direction of the arrow N is relatively strengthened with respect to the flow in the vertical plane BB, so that more fresh air in the opening period of the exhaust valve 7 is directed to the injection port 10, and Thus, the fuel injected into the sub chamber 9 is satisfactorily ignited and burned.
ループ掃気によって燃焼室内の既燃ガスを十分に掃気
しつつ副室内に十分な量の新気を押し込むことができ、
斯くして副室内における良好な着火燃焼を確保すること
ができる。By loop scavenging, it is possible to scaveng the burnt gas in the combustion chamber sufficiently and push a sufficient amount of fresh air into the sub chamber,
Thus, good ignition and combustion in the sub chamber can be secured.
第１図は２サイクルディーゼル機関のシリンダヘッドの
底面図、第２図は第１図のII-II線に沿ってみた２サイ
クルディーゼル機関の側面断面図、第３図は第１図のII
I-III線に沿ってみた２サイクルディーゼル機関の側面
断面図、第４図は２サイクルディーゼル機関の別の実施
例のシリンダヘッドの底面図、第５図は２サイクルディ
ーゼル機関のさらに別の実施例のシリンダヘッドの底面
図、第６図は第５図のVI-VI線に沿ってみた２サイクル
ディーゼル機関の側面断面図である。 ３……シリンダヘッド、５……給気弁、６……給気ポー
ト、７……排気弁、８……排気ポート、９……副室、10
……噴口、14……マスク壁。FIG. 1 is a bottom view of a cylinder head of a two-cycle diesel engine, FIG. 2 is a side sectional view of the two-cycle diesel engine taken along line II-II in FIG. 1, and FIG. 3 is II in FIG.
FIG. 4 is a side sectional view of the two-cycle diesel engine taken along the line I-III, FIG. 4 is a bottom view of a cylinder head of another embodiment of the two-cycle diesel engine, and FIG. 5 is still another embodiment of the two-cycle diesel engine. FIG. 6 is a bottom view of the example cylinder head, and FIG. 6 is a side sectional view of the two-cycle diesel engine taken along line VI-VI in FIG. 3 ... Cylinder head, 5 ... Air supply valve, 6 ... Air supply port, 7 ... Exhaust valve, 8 ... Exhaust port, 9 ... Sub chamber, 10
…… Spout, 14 …… Mask wall.
フロントページの続き (72)考案者 梅花 豊一 愛知県豊田市トヨタ町１番地 トヨタ自動 車株式会社内 (72)考案者 中江 公一 愛知県豊田市トヨタ町１番地 トヨタ自動 車株式会社内 (56)参考文献 実開 平２−122125（ＪＰ，Ｕ) 特公 昭55−43098（ＪＰ，Ｂ２)Front Page Continuation (72) Inventor Toyokazu Umebana 1 Toyota Town, Toyota City, Aichi Prefecture, Toyota Motor Corporation (72) Inventor Koichi Nakae 1 Toyota Town, Toyota City, Aichi Prefecture Toyota Motor Corporation (56 ) References: Kaikaihei 2-122125 (JP, U) JP-B-55-43098 (JP, B2)
Claims (1)
けた副室付２サイクルディーゼル機関において、給気ポ
ートおよび排気ポートを、給気弁かさ部と排気弁かさ部
の中心を含む第１の垂直平面に対して互いに同じ側に延
びるように形成し、排気弁側の給気弁周辺部に排気弁側
の給気弁開口からの新気の流入を抑制する新気流入抑制
壁を設け、前記第１の垂直平面に対して給気ポートと反
対側の新気流入抑制壁端部と給気弁かさ部の中心とを含
む第２の垂直平面と、前記第１の垂直平面に対して排気
ポート側の排気弁かさ部周辺に接するように給気弁かさ
部の中心から延びる第３の垂直平面とに囲まれる領域の
うち排気弁かさ部が存在しない領域内に副室の噴口を配
置した２サイクルディーゼル機関。1. A two-cycle diesel engine with a sub-chamber in which a cylinder head is provided with an intake valve and an exhaust valve, the intake port and the exhaust port including a center of the intake valve cap and an exhaust valve cap. And the fresh air inflow suppressing wall that suppresses the inflow of fresh air from the intake valve opening on the exhaust valve side in the vicinity of the intake valve on the exhaust valve side. A second vertical plane including an end portion of the fresh air inflow suppressing wall on the side opposite to the air supply port with respect to the first vertical plane and a center of the air supply valve cap, and the first vertical plane. The injection port of the sub-chamber in a region surrounded by the third vertical plane extending from the center of the intake valve cap so as to come into contact with the vicinity of the exhaust valve cap on the exhaust port side and in a region where the exhaust valve cap does not exist. A two-cycle diesel engine arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14591589U JPH087059Y2 (en) | 1989-12-20 | 1989-12-20 | 2-cycle diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14591589U JPH087059Y2 (en) | 1989-12-20 | 1989-12-20 | 2-cycle diesel engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0387822U JPH0387822U (en) | 1991-09-06 |
| JPH087059Y2 true JPH087059Y2 (en) | 1996-02-28 |
Family
ID=31692535
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14591589U Expired - Lifetime JPH087059Y2 (en) | 1989-12-20 | 1989-12-20 | 2-cycle diesel engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH087059Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200448305Y1 (en) * | 2008-01-24 | 2010-03-30 | 주식회사 새한하이텍 | Cord reel assembly |
-
1989
- 1989-12-20 JP JP14591589U patent/JPH087059Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0387822U (en) | 1991-09-06 |
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