JPH0630433U - Gas engine torch ignition device - Google Patents
Gas engine torch ignition deviceInfo
- Publication number
- JPH0630433U JPH0630433U JP071047U JP7104792U JPH0630433U JP H0630433 U JPH0630433 U JP H0630433U JP 071047 U JP071047 U JP 071047U JP 7104792 U JP7104792 U JP 7104792U JP H0630433 U JPH0630433 U JP H0630433U
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- Prior art keywords
- ignition
- chamber
- torch ignition
- torch
- sub
- Prior art date
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
- F02P13/00—Sparking plugs structurally combined with other parts of internal-combustion engines
Landscapes
- Ignition Installations For Internal Combustion Engines (AREA)
- Combustion Methods Of Internal-Combustion Engines (AREA)
- Fuel-Injection Apparatus (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
Abstract
(57)【要約】
【目的】 本考案の目的は、トーチ点火副室内での確実
な点火と安定した燃焼を実現して主燃焼室へ強力な火炎
ジェットの噴出を可能とし、希薄燃焼により大気汚染物
質の生成を抑制するとともに、燃焼効率の向上を図り得
るガスエンジンのトーチ点火装置を提供するにある。
【構成】 本考案に係るガスエンジンのトーチ点火装置
は、チェック弁５と点火栓７が装着されるトーチ点火副
室１ｂと、該点火副室と主燃焼室２ａとを連通する口金
通路６ａ及び複数の噴口６ｂ，６ｃが設けられた噴口口
金６とを有してなり、前記口金通路６ａをトーチ点火副
室１ｂの軸線から偏心して設け、複数の噴口６ｂ，６ｃ
を口金通路６ａの軸線に非対称に穿設すると共に、トー
チ点火副室の軸線に対する口金通路の偏心と反対側の副
室内の上部側方に点火栓取付凹部１ｃを形成して点火栓
７を装着する構成としたことを特徴としている。
(57) [Summary] [Purpose] The purpose of the present invention is to realize reliable ignition and stable combustion in the torch ignition sub-chamber, enabling the ejection of a powerful flame jet into the main combustion chamber, and the lean combustion to the atmosphere. (EN) A gas engine torch ignition device capable of suppressing generation of pollutants and improving combustion efficiency. A torch ignition device for a gas engine according to the present invention comprises a torch ignition subchamber 1b in which a check valve 5 and an ignition plug 7 are mounted, a mouth passage 6a for communicating the ignition subchamber with the main combustion chamber 2a, and And a plurality of nozzles 6b and 6c, the nozzle passage 6a is provided eccentrically from the axis of the torch ignition subchamber 1b, and the plurality of nozzles 6b and 6c are provided.
Is asymmetrically drilled in the axis of the mouth passage 6a, and a spark plug mounting recess 1c is formed in the upper side of the sub chamber opposite to the eccentricity of the mouth passage with respect to the axis of the torch ignition sub chamber to attach the spark plug 7. The feature is that it is configured to.
Description
【０００１】[0001]
本考案はガスエンジンのトーチ点火装置に関する。 The present invention relates to a torch ignition device for a gas engine.
【０００２】[0002]
図３，図４，図５を参照して従来例について説明する。図３に従来のトーチ点 火式ガスエンジンの燃焼室周辺の縦断面図を示す。図４は図３におけるトーチ点 火装置周辺の拡大図で、図５は図４におけるＶ−Ｖ断面の平面図である。 燃焼に供される主燃料ガス及び空気は図示しない燃料供給装置と空気供給装置 から燃料空気混合装置を経て主燃料ガスと空気の混合気となって主燃焼室１０２ ａへ導入される。 また、トーチ点火用燃料ガスは図示しない燃料ガス本管より分岐され、ガス通 路１０４を通りチェック弁１０５を介してトーチ点火副室１０１ｂ内の圧力が前 記チェック弁の開弁設定圧（通常約１ｋｇｆ／ｃｍ2 程度）以下に低下する排気 終了から吸気行程の時期にトーチ点火副室１０１ｂ内に導入される。A conventional example will be described with reference to FIGS. 3, 4, and 5. FIG. 3 shows a vertical cross-sectional view around the combustion chamber of a conventional torch ignition type gas engine. 4 is an enlarged view of the vicinity of the torch ignition device in FIG. 3, and FIG. 5 is a plan view of the VV cross section in FIG. The main fuel gas and air used for combustion are introduced into the main combustion chamber 102a as a mixture of main fuel gas and air from a fuel supply device and an air supply device (not shown) through a fuel air mixing device. Further, the fuel gas for torch ignition is branched from a fuel gas main pipe (not shown), and the pressure in the torch ignition sub-chamber 101b passes through the gas passage 104 and the check valve 105 to set the opening pressure of the check valve (normal It is introduced into the torch ignition auxiliary chamber 101b at a time of about 1 kgf / cm 2 or so) the intake stroke from the exhaust ends to decrease below.
【０００３】 エンジンの作動が進み圧縮行程になると、主燃焼室１０２ａ内の混合気の一部 は噴口口金１０６の噴口１０６ｂから噴口通路１０６ａを通りトーチ点火副室１ ０１ｂ内に送出され、該副室内に導入されているトーチ点火用燃料ガスと更に混 合される。 ピストンが上死点近くに達した時期にトーチ点火副室１０１ｂの上部に装着し た点火栓１０７での火花放電によってトーチ点火副室内の混合気に点火する。点 火によって発生した火炎は噴口口金１０６に複数個設けられた噴口１０６ｂから 主燃焼室１０２ａへ噴出して主燃焼室内の混合気に点火し火炎が伝播して燃焼が 進行する。When the engine operation proceeds to the compression stroke, a part of the air-fuel mixture in the main combustion chamber 102a is sent from the nozzle 106b of the nozzle metal 106 through the nozzle passage 106a into the torch ignition subchamber 101b, where It is further mixed with the fuel gas for torch ignition introduced into the room. When the piston reaches near the top dead center, the air-fuel mixture in the torch ignition sub-chamber is ignited by spark discharge from the spark plug 107 mounted on the upper part of the torch ignition sub-chamber 101b. The flame generated by the ignition is ejected from the plurality of nozzles 106b provided in the nozzle 106 into the main combustion chamber 102a, the mixture gas in the main combustion chamber is ignited, the flame propagates, and the combustion proceeds.
【０００４】[0004]
しかしながら、前記した従来技術によるガスエンジンのトーチ点火装置には次 のような問題点があった。 即ち、トーチ点火式ガスエンジンでは主燃焼室に供給される混合気は理論混合 比の約２倍程度の希薄な混合気であり、圧縮行程中にピストンの上昇に伴って主 燃焼室１０２ａ内の希薄な混合気の一部はトーチ点火副室１０１ｂに送出され該 副室内のトーチ点火用燃料ガス（純ガス）と更に混合される。この主燃焼室１０ ２ａからトーチ点火副室１０１ｂへの希薄混合気の送出の際、希薄混合気が流通 する噴口口金１０６の口金通路１０６ａ及び噴口１０６ｂはトーチ点火副室１０ １ｂと同心で且つ対称になっているので、該トーチ点火副室内での混合気の流れ は下方中央部から上方に向って流れ副室上部で左右に分流するが渦流への生長は 殆んど期待できず、主燃焼室から流入した希薄混合気とトーチ点火用燃料ガスの 混合は十分に行われない。 However, the above-mentioned conventional gas engine torch ignition device has the following problems. That is, in the torch ignition type gas engine, the air-fuel mixture supplied to the main combustion chamber is a lean air-fuel mixture having a ratio of about twice the stoichiometric mixture ratio, and the air-fuel mixture in the main combustion chamber 102a in the main combustion chamber 102a increases as the piston moves up during the compression stroke. Part of the lean air-fuel mixture is delivered to the torch ignition sub-chamber 101b and further mixed with the torch ignition fuel gas (pure gas) in the sub-chamber. During delivery of the lean air-fuel mixture from the main combustion chamber 102a to the torch ignition sub-chamber 101b, the nozzle passage 106a and the nozzle opening 106b of the nozzle nozzle 106 through which the lean air-fuel mixture flows are concentric with the torch ignition sub-chamber 101b. As a result, the flow of the air-fuel mixture in the torch ignition sub-chamber flows upward from the center of the torch and splits left and right in the upper part of the sub-chamber. The lean air-fuel mixture flowing from the chamber and the fuel gas for torch ignition are not sufficiently mixed.
【０００５】 このためトーチ点火副室１０１ｂの上部に装着された点火栓１０７先端の電極 部周辺には点火に適した空燃比の混合気の流れが形成されないので点火が不確実 となり、前記トーチ点火副室内での安定した燃焼を維持できない。 従ってトーチ点火副室１０１ｂから通じている噴口１０６ｂから強い点火火炎 を噴出することができず、主燃焼室１０２ａでの燃焼が不完全となり、排気中に 含まれる大気汚染物質の排出量も増加するという問題点が残されていた。For this reason, since the flow of the air-fuel mixture having the air-fuel ratio suitable for ignition is not formed around the electrode portion at the tip of the spark plug 107 mounted on the upper portion of the torch ignition sub-chamber 101b, ignition becomes uncertain, and the torch ignition is performed. Stable combustion in the sub chamber cannot be maintained. Therefore, a strong ignition flame cannot be ejected from the injection port 106b communicating from the torch ignition sub-chamber 101b, the combustion in the main combustion chamber 102a becomes incomplete, and the emission amount of air pollutants contained in the exhaust increases. There was a problem left.
【０００６】 本考案の目的は前記従来例での問題点を解決して、トーチ点火副室における点 火用燃料ガスと希薄混合気との混合を副室内に生成される縦旋回流を制御して促 進すると共に、点火栓の電極部周辺には点火に適した濃度の混合気を導くように して確実な点火の実現を図り、トーチ点火副室内での安定した燃焼による火炎を 噴口口金の噴口から強力な火炎ジェットとして主燃焼室へ噴出させ、希薄混合気 に点火するガスエンジンのトーチ点火装置を提供するにある。An object of the present invention is to solve the problems in the conventional example and to control the vertical swirl flow generated in the sub-chamber by mixing the ignition fuel gas and the lean air-fuel mixture in the torch ignition sub-chamber. In addition to the above, the air-fuel mixture with a concentration suitable for ignition is introduced around the electrode part of the spark plug to achieve reliable ignition, and a flame due to stable combustion in the torch ignition sub-chamber is created. A torch igniter for a gas engine that ignites a lean air-fuel mixture by injecting a strong flame jet into the main combustion chamber from the jet nozzle.
【０００７】[0007]
本考案のガスエンジンのトーチ点火装置は、シリンダヘッド１に形成され点火 用燃料ガスのチェック弁５と点火栓７が装着されるトーチ点火副室１ｂと、該ト ーチ点火副室と主燃焼室２ａを連通する口金通路６ａと複数の噴口６ｂ、６ｃが 設けられた噴口口金６とを有してなり、前記噴口口金の通路部６ａの軸線Ｂ−Ｂ をトーチ点火副室１ｂの軸線Ａ−Ａに対して偏心させると共に、前記通路部先端 の複数の噴口６ｂ、６ｃを通路部の軸線Ｂ−Ｂに対し非対称に穿設し、さらに前 記した副室の軸線Ａ−Ａに対する通路部の軸線Ｂ−Ｂの偏心と反対側のトーチ点 火副室１ｂの上部側方に点火線取付凹部１ｃを形成したことを特徴としている。 The gas engine torch ignition device of the present invention comprises a torch ignition sub-chamber 1b formed in the cylinder head 1 in which a check valve 5 for fuel gas for ignition and a spark plug 7 are mounted, the torch ignition sub-chamber and main combustion chamber. It has a mouthpiece passage 6a communicating with the chamber 2a and a nozzle mouthpiece 6 provided with a plurality of nozzles 6b, 6c. The axis BB of the passage portion 6a of the nozzle mouthpiece is the axis A of the torch ignition subchamber 1b. -A, the plurality of nozzles 6b, 6c at the tip of the passage portion are asymmetrically bored with respect to the axis BB of the passage portion, and the passage portion with respect to the axis AA of the auxiliary chamber described above is provided. The torch point on the side opposite to the eccentricity of the axis line BB is characterized in that the ignition wire mounting recess 1c is formed on the upper side of the sub-chamber 1b.
【０００８】[0008]
ガスエンジンの主燃焼室には極めて希薄な混合気が供給されるので、確実に点 火し安定した燃焼をさせるためには、トーチ点火副室内での安定した燃焼による 火炎を強力な火炎ジェットとして噴口から主燃焼室へ噴出させることがガスエン ジンにおける点火作用の狙いである。 エンジンが吸気行程の時期に点火用燃料ガスがチェック弁５を介してトーチ点 火副室１ｂ内に供給される。 圧縮行程の時期になると主燃焼室２ａ内の希薄混合気の一部が噴口口金６の噴 口６ｂ、６ｃを通り、通路部６ａから前記点火副室内に流入する。この流入の際 、噴口口金の通路部６ａはトーチ点火副室１ｂの軸線に対し偏心しているため、 流入した希薄混合気は側壁面に沿うように上方に流れ縦旋回流が生成され、先に 供給されている点火用燃料ガスとの混合が促進される。 Since an extremely lean air-fuel mixture is supplied to the main combustion chamber of the gas engine, in order to reliably ignite and ensure stable combustion, the flame produced by stable combustion in the torch ignition sub-chamber should be used as a powerful flame jet. Injecting gas from the injection port into the main combustion chamber is the aim of ignition in the gas engine. During the intake stroke of the engine, fuel gas for ignition is supplied into the torch ignition subchamber 1b via the check valve 5. At the time of the compression stroke, part of the lean air-fuel mixture in the main combustion chamber 2a passes through the nozzles 6b and 6c of the nozzle metal 6 and flows into the ignition sub-chamber from the passage 6a. At the time of this inflow, since the passage portion 6a of the injection nozzle is eccentric with respect to the axis of the torch ignition sub-chamber 1b, the inflowing lean air-fuel mixture flows upward along the side wall surface and a vertical swirl flow is generated. Mixing with the supplied fuel gas for ignition is promoted.
【０００９】 なお、点火栓７はトーチ点火副室１ｂ内で前記希薄混合気の縦旋回流の主流の 影響を直接受けることなく、火花放電する電極部周辺には比較的濃度の高い混合 気がとどまるようトーチ点火副室１ｂの上部側方の凹部に装着されるので、点火 時期に至ると確実に点火できる。 点火されたトーチ点火副室内の火炎は縦旋回流により伝播が促進され、強力な 火炎ジェットとなって噴口６ｂ，６ｃから主燃焼室２ａに噴出されるので希薄混 合気に確実に点火し、火炎は主燃焼室内を急速に伝播し安定した良好な燃焼を得 ることができる。The spark plug 7 is not directly affected by the main flow of the vertical swirling flow of the lean air-fuel mixture in the torch ignition subchamber 1b, and a relatively high-concentration air-fuel mixture is generated around the electrode portion where spark discharge occurs. Since the torch ignition subchamber 1b is mounted in a recess on the upper side of the torch ignition sub-chamber 1b so as to remain, ignition can be reliably performed at the ignition timing. Propagation of the ignited flame in the torch ignition sub-chamber is promoted by the vertical swirl flow, and becomes a powerful flame jet that is ejected from the nozzles 6b, 6c to the main combustion chamber 2a, so that the lean mixture is ignited reliably. The flame propagates rapidly in the main combustion chamber, and stable and good combustion can be obtained.
【００１０】[0010]
図１に本考案の実施例に係るガスエンジンのトーチ点火装置の縦断面図で、図 ２は図１におけるII−II断面の平面図である。 次に図１及び図２を参照して本考案のガスエンジンのトーチ点火装置の実施例 について説明する。 図１に見られるように、トーチ点火副室１ｂの上部側方に点火栓取付凹部１ｃ を形成して点火栓７を装着し、噴口口金６の噴口通路６ａは、その軸線Ｂ−Ｂを トーチ点火副室１ｂの軸線Ａ−Ａからｅだけ偏心させ前記点火栓取付凹部１ｃの 反対側に設けられ、噴口口金６先端の複数個の噴口６ｂ，６ｃは噴口口金の通路 部６ａの軸線Ｂ−Ｂに対して非対称に穿設されていることがこの実施例での特徴 である。 FIG. 1 is a vertical cross-sectional view of a gas engine torch ignition device according to an embodiment of the present invention, and FIG. 2 is a plan view of a II-II cross section in FIG. An embodiment of a torch ignition device for a gas engine according to the present invention will be described with reference to FIGS. As shown in FIG. 1, a spark plug attachment recess 1c is formed on the upper side of the torch ignition sub-chamber 1b, and a spark plug 7 is attached to the torch ignition subchamber 1b. The ignition sub-chamber 1b is provided on the opposite side of the spark plug mounting recess 1c from the axis A-A of the axis A-A, and the plurality of nozzles 6b, 6c at the tip of the nozzle cap 6 are the axis B- of the passage 6a of the nozzle. The feature of this embodiment is that the holes are formed asymmetrically with respect to B.
【００１１】 主燃料ガスと空気は図示しない燃料供給装置及び空気供給装置から燃料空気混 合装置を経て主燃料ガスと空気の希薄な混合気となって吸気行程中に図示しない 吸気ポートを経て主燃焼室２ａ内に流入する。 一方トーチ点火用燃料ガスは図示しない燃料ガス本管より分岐され、ガス通路 ４を通りチェック弁５を介してトーチ点火副室１ｂの室内圧がチェック弁５の開 弁圧以下に低下する吸気行程の時期に副室１ｂ内に導入される。 圧縮行程になると主燃焼室２ａ内の希薄混合気はピストン２の上昇によって圧 縮され、混合気の一部は噴口口金６の噴口６ｂ，６ｃから噴口通路６ａを通って トーチ点火副室１ｂ内に送出される。The main fuel gas and air from the fuel supply device and the air supply device (not shown) pass through the fuel-air mixing device to become a lean mixture of the main fuel gas and air, and through the intake port (not shown) during the intake stroke. It flows into the combustion chamber 2a. On the other hand, the fuel gas for torch ignition is branched from a fuel gas main pipe (not shown), and the intake stroke in which the internal pressure of the torch ignition sub-chamber 1b drops below the opening pressure of the check valve 5 through the gas passage 4 and the check valve 5. Is introduced into the sub chamber 1b at the time of. In the compression stroke, the lean air-fuel mixture in the main combustion chamber 2a is compressed by the rise of the piston 2, and a part of the air-fuel mixture passes from the nozzles 6b, 6c of the nozzle metal 6 through the nozzle passage 6a and in the torch ignition auxiliary chamber 1b. Sent to.
【００１２】 前記したように噴口通路６ａの軸線Ｂ−Ｂはトーチ点火副室１ｂの軸線Ａ−Ａ からｅだけ偏心させて設けられ、また噴口通路６ａの下端と主燃焼室２ａとを連 通する噴口６ｂ，６ｃは通路部の軸線Ａ−Ａに対し非対称に穿設されている。複 数個の噴口については口径寸法あるいは噴口数について特に規定しない。また噴 口通路６ａが偏心して設けられているので噴口６ｂと６ｃでは長さが異なるので 噴口通路６ａ内に流入した希薄混合気に流入速度差による乱れが発生する。 このため小さな乱れを含んでトーチ点火副室１ｂ内に流入した希薄混合気は左 側壁面に沿って上昇し、上部から右方向への旋回流となって既に流入しているト ーチ点火用燃料ガスと混合する。この際、トーチ点火副室１ｂの上部側方に設け られた点火栓が装着されている点火栓取付凹部１ｃには縦旋回する希薄混合気の 主流は流入せず、着火用燃料ガスを多く含んだ比較的濃い混合気が存在する状態 となる。As described above, the axis BB of the nozzle passage 6a is provided eccentric from the axis AA of the auxiliary torch ignition chamber 1b by e, and the lower end of the nozzle passage 6a communicates with the main combustion chamber 2a. The injection ports 6b and 6c are formed asymmetrically with respect to the axis AA of the passage. For multiple nozzles, the size or number of nozzles is not specified. Further, since the injection port passage 6a is eccentrically provided, the injection ports 6b and 6c have different lengths, so that a turbulence occurs due to the difference in the inflow speed of the lean mixture flowing into the injection port passage 6a. For this reason, the lean air-fuel mixture that has entered the torch ignition sub-chamber 1b with a small turbulence rises along the left side wall surface and becomes a swirling flow from the upper part to the right direction for torch ignition. Mix with fuel gas. At this time, the main flow of the lean-mixed lean air-fuel mixture does not flow into the spark plug mounting recess 1c in which the spark plug provided on the upper side of the torch ignition sub-chamber 1b is mounted, and contains a large amount of fuel gas for ignition. However, there is a relatively rich mixture.
【００１３】 ピストン２が圧縮行程の終りの上死点近傍に達した時期に点火栓７で火花放電 が行われ混合気に点火されるが、点火栓７の電極部の周囲には点火に適した濃度 の混合気が存在し確実な点火が保証される。 点火された後火炎は縦旋回流によって加速され、急速に伝播して噴口口金６の 噴口６ｂ，６ｃから強力な火炎ジェットとなって主燃焼室２ａ内に噴出し、該主 燃焼室２ａ内の希薄混合気に点火し主燃焼室内全体に火炎が伝播し安定した燃焼 が実現される。When the piston 2 reaches the vicinity of the top dead center at the end of the compression stroke, spark discharge is generated in the spark plug 7 and the mixture is ignited, but the vicinity of the electrode part of the spark plug 7 is suitable for ignition. A certain concentration of air-fuel mixture is present and reliable ignition is guaranteed. The ignited post-flame is accelerated by the vertical swirling flow and rapidly propagates to form a powerful flame jet from the nozzles 6b and 6c of the nozzle cap 6 into the main combustion chamber 2a. The lean mixture is ignited, the flame propagates throughout the main combustion chamber, and stable combustion is achieved.
【００１４】[0014]
本考案のガスエンジンのトーチ点火装置により次のような効果が得られる。 （１）点火栓の放電電極部を希薄混合気の縦旋回流の主流に直接さらすことなく 、電極部の周辺には点火に適した理論混合比に近い濃度の混合気を存在させるこ とが可能となり確実な点火が保証される。 （２）トーチ点火副室内に小さな乱れを含んだ縦旋回流が発生するので、該副室 内での点火用燃料ガスと希薄混合気の混合が促進されると共に、該副室内での点 火後の火炎の伝播も加速され強力な火炎ジェットが主燃焼室２ａに噴出し、主燃 焼室内の希薄混合気の安定した燃焼が可能となる。 （３）希薄燃焼のガスエンジンでは従来点火が不確実であり失火等の問題点が指 摘されていたが上記のようにこの問題点は解決され、希薄燃焼エンジンの長所で あるＮＯx の排出量が少ないことが保たれるほか、ＣＯや未燃ＨＣ等の大気汚染 物質の発生が抑制されるとともに燃焼効率の向上が実現される。The gas engine torch ignition device of the present invention has the following effects. (1) Without directly exposing the discharge electrode part of the spark plug to the main flow of the vertical swirling flow of the lean air-fuel mixture, it is possible to allow the air-fuel mixture to have a concentration close to the theoretical mixing ratio suitable for ignition around the electrode part. Possible and reliable ignition is guaranteed. (2) Since a vertical swirling flow including small turbulence is generated in the torch ignition sub-chamber, mixing of the fuel gas for ignition and the lean air-fuel mixture in the sub-chamber is promoted and the ignition in the sub-chamber is started. The subsequent propagation of the flame is also accelerated, and a powerful flame jet is ejected into the main combustion chamber 2a, enabling stable combustion of the lean air-fuel mixture in the main combustion chamber. (3) Problems such as lean in the combustion gas engine of uncertain conventional ignition misfire has been pointed out, but the problem as described above is resolved, NO x emissions, which is an advantage of lean burn engines The amount is kept small, and the generation of atmospheric pollutants such as CO and unburned HC is suppressed, and the combustion efficiency is improved.
【図１】本考案の第１実施例に係るガスエンジンのトー
チ点火装置周辺の縦断面図。FIG. 1 is a vertical cross-sectional view around a torch ignition device of a gas engine according to a first embodiment of the present invention.
【図２】図１におけるII−II断面の平面図。FIG. 2 is a plan view of a II-II section in FIG.
【図３】従来のトーチ点火式ガスエンジンの燃焼室周辺
の拡大図。FIG. 3 is an enlarged view around a combustion chamber of a conventional torch ignition type gas engine.
【図４】図３におけるトーチ点火装置周辺の縦断面図。FIG. 4 is a vertical cross-sectional view around the torch ignition device in FIG.
【図５】図４におけるＶ−Ｖ断面の平面図。5 is a plan view of the VV cross section in FIG. 4. FIG.
１…シリンダヘッド、１ｂ…トーチ点火副室、１ｃ…点
火栓取付凹部、２…ピストン、２ａ…主燃焼室、４…点
火用燃料ガス通路、５…チェック弁、６…噴口口金、６
ａ…口金通路、６ｂ…噴口、６ｃ…噴口、７…点火栓、
Ａ−Ａ…トーチ点火副室の軸線、Ｂ−Ｂ…口金通路の軸
線、ｅ…軸線Ａ−Ａと軸線Ｂ−Ｂの偏心。DESCRIPTION OF SYMBOLS 1 ... Cylinder head, 1b ... Torch ignition sub-chamber, 1c ... Spark plug attachment recessed part, 2 ... Piston, 2a ... Main combustion chamber, 4 ... Ignition fuel gas passage, 5 ... Check valve, 6 ... Nozzle cap, 6
a ... Mouth passage, 6b ... Jet port, 6c ... Jet port, 7 ... Spark plug,
A-A ... Axis of torch ignition sub-chamber, BB ... Axis of mouthpiece passage, e ... Eccentricity of axis A-A and axis BB.
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.5 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｆ０２Ｍ 61/18 ３２０ Ｃ 9248−3Ｇ Ｆ０２Ｐ 13/00 ３０２ Ｂ ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 5 Identification number Office reference number FI technical display location F02M 61/18 320 C 9248-3G F02P 13/00 302 B
Claims (1)
て、シリンダヘッド（１）に形成され点火用燃料ガスの
チェック弁（５）と点火栓（７）が装着されるトーチ点
火副室（１ｂ）と、該トーチ点火副室と主燃焼室（２
ａ）を連通する口金通路（６ａ）と複数の噴口（６ｂ，
６ｃ）が設けられた噴口口金（６）とを有してなり、前
記噴口口金の通路部（６ａ）の軸線Ｂ−Ｂをトーチ点火
副室（１ｂ）の軸線Ａ−Ａに対して偏心させると共に、
前記通路部先端の複数の噴口（６ｂ，６ｃ）を通路部の
軸線Ｂ−Ｂに対して非対称に穿設し、さらに前記した副
室の軸線Ａ−Ａに対する通路部（６ａ）の軸線Ｂ−Ｂの
偏心と反対側のトーチ点火副室（１ｂ）の上部側方に点
火栓取付凹部（１ｃ）を形成したことを特徴とするガス
エンジンのトーチ点火装置。1. A torch ignition sub-chamber (1b) for a gas engine torch ignition device, comprising a check valve (5) for fuel gas for ignition and a spark plug (7) formed in a cylinder head (1), The torch ignition sub-chamber and the main combustion chamber (2
a) a passageway (6a) communicating with a) and a plurality of nozzles (6b,
6c) is provided with a nozzle mouthpiece (6), and the axis BB of the passage portion (6a) of the nozzle mouthpiece is eccentric with respect to the axis AA of the torch ignition subchamber (1b). With
A plurality of nozzles (6b, 6c) at the tip of the passage part are formed asymmetrically with respect to the axis line BB of the passage part, and further, the axis line B- of the passage part (6a) with respect to the axis line A-A of the sub chamber. A torch ignition device for a gas engine, characterized in that a spark plug mounting recess (1c) is formed on the upper side of a torch ignition sub-chamber (1b) opposite to the eccentricity of B.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP071047U JPH0630433U (en) | 1992-09-18 | 1992-09-18 | Gas engine torch ignition device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP071047U JPH0630433U (en) | 1992-09-18 | 1992-09-18 | Gas engine torch ignition device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0630433U true JPH0630433U (en) | 1994-04-22 |
Family
ID=13449225
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP071047U Pending JPH0630433U (en) | 1992-09-18 | 1992-09-18 | Gas engine torch ignition device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0630433U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007255313A (en) * | 2006-03-23 | 2007-10-04 | Osaka Gas Co Ltd | Indirect injection engine |
| JP2007270782A (en) * | 2006-03-31 | 2007-10-18 | Osaka Gas Co Ltd | Engine |
| JP2010530938A (en) * | 2007-06-23 | 2010-09-16 | エムユーエスアイ エンジンズ リミティッド | Internal combustion engine |
| AT510435B1 (en) * | 2010-11-02 | 2012-04-15 | Ge Jenbacher Gmbh & Co Ohg | reciprocating engine |
| AT510869A1 (en) * | 2010-12-27 | 2012-07-15 | Ge Jenbacher Gmbh & Co Og | Internal combustion engine |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4100029B2 (en) * | 2002-04-12 | 2008-06-11 | 三菱電機株式会社 | Starter |
-
1992
- 1992-09-18 JP JP071047U patent/JPH0630433U/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4100029B2 (en) * | 2002-04-12 | 2008-06-11 | 三菱電機株式会社 | Starter |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007255313A (en) * | 2006-03-23 | 2007-10-04 | Osaka Gas Co Ltd | Indirect injection engine |
| JP2007270782A (en) * | 2006-03-31 | 2007-10-18 | Osaka Gas Co Ltd | Engine |
| JP4698471B2 (en) * | 2006-03-31 | 2011-06-08 | 大阪瓦斯株式会社 | engine |
| JP2010530938A (en) * | 2007-06-23 | 2010-09-16 | エムユーエスアイ エンジンズ リミティッド | Internal combustion engine |
| AT510435B1 (en) * | 2010-11-02 | 2012-04-15 | Ge Jenbacher Gmbh & Co Ohg | reciprocating engine |
| WO2012058700A1 (en) | 2010-11-02 | 2012-05-10 | Ge Jenbacher Gmbh & Co Ohg | Reciprocating piston engine |
| AT510869A1 (en) * | 2010-12-27 | 2012-07-15 | Ge Jenbacher Gmbh & Co Og | Internal combustion engine |
| AT510869B1 (en) * | 2010-12-27 | 2013-04-15 | Ge Jenbacher Gmbh & Co Ohg | Internal combustion engine |
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