JPH065057B2 - Safety device for large chamber gas engine - Google Patents
Safety device for large chamber gas engineInfo
- Publication number
- JPH065057B2 JPH065057B2 JP61254439A JP25443986A JPH065057B2 JP H065057 B2 JPH065057 B2 JP H065057B2 JP 61254439 A JP61254439 A JP 61254439A JP 25443986 A JP25443986 A JP 25443986A JP H065057 B2 JPH065057 B2 JP H065057B2
- Authority
- JP
- Japan
- Prior art keywords
- gas supply
- chamber
- pressure
- gas
- check valve
- 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
Links
- 238000011144 upstream manufacturing Methods 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000004880 explosion Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000005856 abnormality Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
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
- F02B19/10—Engines characterised by precombustion chambers with fuel introduced partly into pre-combustion chamber, and partly into cylinder
- F02B19/1019—Engines characterised by precombustion chambers with fuel introduced partly into pre-combustion chamber, and partly into cylinder with only one pre-combustion chamber
- F02B19/108—Engines characterised by precombustion chambers with fuel introduced partly into pre-combustion chamber, and partly into cylinder with only one pre-combustion chamber with fuel injection at least into pre-combustion chamber, i.e. injector mounted directly in the pre-combustion chamber
-
- 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
- F02B19/12—Engines characterised by precombustion chambers with positive 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
Description
【発明の詳細な説明】 〈産業上の利用分野〉 この発明は、点火用の副室を備えた大形ガス機関の安全
装置に関する。TECHNICAL FIELD The present invention relates to a safety device for a large-sized gas engine having an auxiliary chamber for ignition.
〈従来の技術とその問題点〉 点火用の副室を備えた大形ガス機関は知られているが、
従来の機関においては、副室へのガス供給路はレギュレ
ータから副室にガスを供給するだけの構造となってお
り、失火時のバックファイヤによるガス供給路の破損等
の事故を防止する特別な対策はなさらていなかった。<Prior art and its problems> Although a large-sized gas engine equipped with an auxiliary chamber for ignition is known,
In the conventional engine, the gas supply path to the sub chamber has a structure that only supplies gas from the regulator to the sub chamber, and it is special to prevent accidents such as damage to the gas supply path due to backfire at the time of misfire. No measures were taken.
このため、本発明者らは副室へのガス供給路に逆止弁を
挿入して失火時の事故を防ぐことを着想し、これに適し
た構造の逆止弁について研究した結果、副室へのガス供
給路に設けた逆止弁はその使用環境の性質上膠着状態が
生じやすく、単に逆止弁を設けただけでは安全対策とし
ては不十分であることがわかった。Therefore, the inventors of the present invention have conceived that a check valve is inserted in the gas supply path to the sub chamber to prevent an accident at the time of misfire, and as a result of research on a check valve having a structure suitable for this, the sub chamber It was found that the check valve provided in the gas supply path to the is likely to be stuck due to the nature of the operating environment, and simply providing the check valve is not sufficient as a safety measure.
この発明はこのような問題点に着目し、失火時における
ガス供給路の破損事故や、未燃焼ガスが排気管に充満し
て煙道爆発を起こすような事故を確実に防止することを
目的としてなされたものである。The present invention focuses on such problems and aims to reliably prevent accidents such as damage to the gas supply passage at the time of misfire, and accidents such that unburned gas fills the exhaust pipe and causes a flue explosion. It was made.
〈問題点を解決するための手段〉 上述の目的を達成するために、この発明の副室式大形ガ
ス機関の安全装置は、副室へのガス供給路に逆止弁を備
えた副室式大形ガス機関において、逆止弁よりも上流側
にガス供給路内の圧力を検出する圧力センサを設けると
ともに、排気通路に排気温度を検出する温度センサを設
け、ガス供給路内の圧力があらかじめ設定された値より
も上がった場合か、あるいは排気温度があらかじめ設定
された値よりも下がった場合に、シリンダ及び副室への
ガス供給を停止するようにしている。<Means for Solving the Problems> In order to achieve the above-mentioned object, the safety device of the subchamber type large-sized gas engine of the present invention is a subchamber having a check valve in a gas supply path to the subchamber. In a large-sized gas engine, a pressure sensor is installed upstream of the check valve to detect the pressure in the gas supply passage, and a temperature sensor is installed in the exhaust passage to detect the exhaust temperature. The gas supply to the cylinder and the sub chamber is stopped when the temperature rises above a preset value or when the exhaust temperature falls below a preset value.
〈作用〉 逆止弁が閉じた状態で膠着すると、副室へのガス供給が
できなくなって失火し、開いた状態で膠着すると、点火
ができなくなって失火し、同時に副室を通じてガス供給
路にシリンダ内の高い圧力が加わる。そして、この失火
はシリンダから排出される排気温度が低下することから
温度セサにより検出され、ガス供給路内の圧力上昇は圧
力セサにより検出されるので、逆止弁の膠着が開、閉の
いずれかの状態で発生してもそれが検出され、直ちにシ
リンダ及び副室へのガス供給が遮断されて機関の運転が
停止される。これにより、逆止弁の膠着に起因する失火
時のガス供給路破損や、煙道爆発等の事故は防止され
る。<Action> If the check valve is stuck in the closed state, gas cannot be supplied to the sub-chamber, resulting in misfire, and if stuck in the open state, sticking to the sub-chamber fails to ignite and causes misfire. High pressure in the cylinder is applied. This misfire is detected by the temperature sensor because the temperature of the exhaust gas discharged from the cylinder decreases, and the pressure increase in the gas supply path is detected by the pressure sensor, so that the check valve is stuck or closed. Even if it occurs in such a state, it is detected, and the gas supply to the cylinder and the auxiliary chamber is immediately cut off to stop the operation of the engine. This prevents accidents such as gas supply channel damage and flue explosion at the time of misfire due to sticking of the check valve.
〈実施例〉 次に図示の実施例について説明する。<Example> Next, the illustrated example will be described.
第１図はこの発明の基本的な構成による第１の実施例で
ある。FIG. 1 shows a first embodiment according to the basic construction of the present invention.
図において、１はミキサー、２はスロットル、３は吸気
管、４は吸気弁であり、空気５と、レギュレータ６で調
圧されたガス７とはミキサー１で混合され、吸気管３を
経てシリンダ８内に供給される。また、９は排気弁、１
０は排気管、１１は排気管１０に設けられた熱電対であ
り、シリンダ８内の排気ガスは排気管１０を経て排出さ
れる。In the figure, 1 is a mixer, 2 is a throttle, 3 is an intake pipe, 4 is an intake valve, and air 5 and gas 7 whose pressure is regulated by a regulator 6 are mixed by a mixer 1, and a cylinder is introduced through an intake pipe 3. 8 is supplied. Also, 9 is an exhaust valve, 1
Reference numeral 0 is an exhaust pipe, 11 is a thermocouple provided in the exhaust pipe 10, and the exhaust gas in the cylinder 8 is exhausted through the exhaust pipe 10.
１５はシリンダ８に連通して設けられた副室、１６は点
火プラグ、１７は副室１１へのガス供給路であり、ガス
7aはガス供給路１７を通じて供給される。このガス供給
路１７には、上流から順にフィルタ１８、レギュレータ
１９、電磁弁２０、第１の逆止弁２１、第２の逆止弁２
２が設けられており、第２の逆止弁２２は副室１５の近
くに配置され、第１の逆止弁２１との間には安全弁２３
と圧力スイッチ２４が設けられている。Reference numeral 15 is a sub chamber provided in communication with the cylinder 8, 16 is a spark plug, 17 is a gas supply path to the sub chamber 11,
7a is supplied through the gas supply path 17. A filter 18, a regulator 19, a solenoid valve 20, a first check valve 21, and a second check valve 2 are sequentially provided in the gas supply path 17 from the upstream side.
2 is provided, the second check valve 22 is disposed near the sub chamber 15, and the safety valve 23 is provided between the second check valve 22 and the first check valve 21.
And a pressure switch 24.
２６はリレーボックス、２７は比較器、２８はレギュレ
ータ６とミキサー１の間の管路に設けられた電磁弁であ
り、リレーボックス２６は熱電対１１と圧力スイッチ２
４の出力に応じて電磁弁２０、２８を開閉するように構
成されている。Reference numeral 26 is a relay box, 27 is a comparator, 28 is a solenoid valve provided in the conduit between the regulator 6 and the mixer 1, and the relay box 26 is the thermocouple 11 and the pressure switch 2.
The solenoid valves 20 and 28 are opened and closed according to the output of No. 4.
正常な運転中は、シリンダ８内のピストン３０の上下動
とともに変化する圧力に応じて、第２の逆止弁２２は自
動的に開閉しているが、第２の逆止弁２２が膠着等の原
因によって閉じたままになると、機関は失火して排気温
度が下がり、熱電対１１の出力は低下する。この出力が
あらかじめ設定された比較器２７の値よりも下がると、
これに応じた信号が比較器２７から出され、リレーボッ
クス２６が作動して電磁弁２０、２８を閉じる。このた
めガス７、７ａの供給が遮断されて機関は停止する。During normal operation, the second check valve 22 automatically opens and closes according to the pressure that changes with the vertical movement of the piston 30 in the cylinder 8, but the second check valve 22 is stuck or the like. If the engine is left closed due to the above, the engine will misfire, the exhaust temperature will drop, and the output of the thermocouple 11 will drop. When this output falls below the preset value of the comparator 27,
A signal corresponding to this is output from the comparator 27, and the relay box 26 operates to close the solenoid valves 20 and 28. Therefore, the supply of the gas 7, 7a is cut off and the engine is stopped.
また、第２の逆止弁２２が膠着等の原因によって開いた
ままになると、機関が消失火して排気温度が下がる一
方、シリンダ８内からの逆流で第１の逆止弁２１が閉
じ、高い圧力によって圧力スイッチ２４がオンとなり、
リレーボックス２６が作動して電磁弁２０、５８を閉
じ、機関を停止させる。またこの時にガス供給路１７に
加わる高い圧力により安全弁２３が作動して圧力を逃が
し、ガス供給路１７を破損させるような圧力がかかるこ
とは防止される。Further, if the second check valve 22 remains open due to sticking or the like, the engine extinguishes and the exhaust gas temperature drops, while the backflow from the cylinder 8 closes the first check valve 21. The high pressure turns on the pressure switch 24,
The relay box 26 operates to close the solenoid valves 20 and 58 and stop the engine. Further, at this time, it is prevented that the safety valve 23 operates due to the high pressure applied to the gas supply passage 17 to release the pressure and the pressure that damages the gas supply passage 17 is applied.
上記の実施例はこの発明の基本的な構成の例であるが、
実際には、機関がある程度以上の速度で運転されている
場合が制御の対象となるのであり、第２図以降に実用的
な第２の実施例を示す。第２図はその原理的な系統図、
第３図は６気筒型の機関における応用例であり、上述の
第１の実施例と同じ部分は同じ符号で示し、異なる点の
みを以下に説明する。Although the above embodiment is an example of the basic configuration of the present invention,
Actually, the case where the engine is operated at a speed higher than a certain level is subject to control, and a practical second embodiment is shown in FIG. 2 and subsequent figures. Fig. 2 shows the system diagram of its principle,
FIG. 3 shows an application example in a 6-cylinder type engine. The same parts as those in the first embodiment described above are denoted by the same reference numerals, and only different points will be described below.
この実施例では、ピストン３０の行程に応じて回転する
クランク軸に固定されたパルスギヤ３１と、これに対応
して配置された電磁ピックアップ３２からなる回転セン
サが設られており、この電磁ピックアップ３２と圧力ス
イッチ２４及び熱電対１１の出力が制御部３３に入力さ
れ、これらの入力信号に応じて制御部３３が動作して電
磁弁２０、２８を開閉するように構成されている。また
第３図に示すように、第２の逆止弁２２は各副室１５ご
とにそれぞれ設けられ、また熱電対１１も各シリンダご
とに設けられているが、第１の逆止弁２１、安全弁２３
及び圧力スイッチ２４は共通に設けられている。なお、
異常検出とこれに伴う保護機能をより確実に発揮させる
には、これらの第１の逆止弁２１、安全弁２３及び圧力
スイッチ２４も各シリンダごとに設ける方が望ましい。In this embodiment, a pulse gear 31 fixed to a crankshaft that rotates according to the stroke of the piston 30 and a rotation sensor including an electromagnetic pickup 32 arranged corresponding to the pulse gear 31 are provided. The outputs of the pressure switch 24 and the thermocouple 11 are input to the control unit 33, and the control unit 33 operates according to these input signals to open and close the solenoid valves 20 and 28. Further, as shown in FIG. 3, the second check valve 22 is provided for each sub chamber 15, and the thermocouple 11 is also provided for each cylinder. Safety valve 23
The pressure switch 24 and the pressure switch 24 are commonly provided. In addition,
In order to more reliably perform the abnormality detection and the protection function associated therewith, it is desirable to provide the first check valve 21, the safety valve 23, and the pressure switch 24 for each cylinder.
制御部３３には制御盤３４とリセットスイッチ３５が接
続されており、制御部３３は、各熱電対１１からの信号
をA/D変換して入力し、圧力スイッチ２４とリセットス
イッチ３５のオンオフ信号を入力し、また電磁ピックア
ップ３２からの信号をカウンタを介して入力する入力イ
ンターフェイス３６、各種演算処理を行うCPU３７、演
算に用いられるROM３８とRAM３９、電磁弁２０、２８及
び制御盤３４に設けられている圧力スイッチの状態及び
失火シリンダを示す表示ランプ（図示せず）に対するオ
ンオフ信号を出力する出力インターフェイス４０などか
ら構成されている。A control panel 34 and a reset switch 35 are connected to the control unit 33. The control unit 33 A / D-converts and inputs signals from the thermocouples 11, and turns on / off signals of the pressure switch 24 and the reset switch 35. And an input interface 36 for inputting a signal from the electromagnetic pickup 32 via a counter, a CPU 37 for performing various arithmetic processes, a ROM 38 and RAM 39 used for arithmetic operations, solenoid valves 20, 28, and a control panel 34. The output interface 40 outputs an ON / OFF signal to an indicator lamp (not shown) indicating the state of the pressure switch and the misfire cylinder.
ガス供給路１７の逆止弁２１及び２２、電磁弁２０、安
全弁２３、圧力スイッチ２４にはそれぞれ耐圧１０kg／
cm2以上のものが用いられ、また逆止弁２１及び２２に
は圧力損の少ないものが、電磁弁２０には開弁圧力２kg
／cm2以上のものが、安全弁２３には設定圧力３〜６kg
／cm2のものが、圧力スイッチ２４には設定圧力３〜５k
g／cm2のもの（但し、安全弁２３よりは低い設定値）
が、それぞれ用いられる。Each of the check valves 21 and 22, the solenoid valve 20, the safety valve 23, and the pressure switch 24 in the gas supply path 17 has a pressure resistance of 10 kg /
cm 2 or more is used, the check valves 21 and 22 have little pressure loss, and the solenoid valve 20 has a valve opening pressure of 2 kg.
/ Cm 2 or more, the safety valve 23 has a set pressure of 3 to 6 kg
/ Cm 2 is the pressure switch 24 set pressure 3-5k
g / cm 2 (however, lower setting value than safety valve 23)
Are used respectively.
次に、第５図に示した制御手順のフローチャートを参照
しながら動作を説明する。Next, the operation will be described with reference to the flowchart of the control procedure shown in FIG.
まず、電磁ピックアップ３２からの信号をカウントして
機関の回転速度を検出し、１００rpm以上であればルー
チン(1)に進み、１００rpm以上でなければ電気弁２０、
２８のオンオフを見て、オフであればルーチン＝(2)に
進み、オンであればターンする（第５時(a)）。First, the signal from the electromagnetic pickup 32 is counted to detect the rotation speed of the engine, and if it is 100 rpm or more, the routine (1) proceeds. If it is not 100 rpm or more, the electric valve 20,
Looking at 28 on / off, if it is off, the routine proceeds to (2), and if it is on, it turns (fifth time (a)).
ルーチン(1)では、各シリンダの排気温度を読込み、こ
れらが３００℃を越えている否かを見て、すべて３００
℃を越えている圧力スイッチ２４のオンオフの状態を読
込み、オフであればリターンし、オンであれば圧力スイ
ッチ２４のランプを点灯し、電磁弁２０、２８を閉じて
ルーチン(2)に進む。また、いずれかのシリンダの廃棄
温度が３００℃以下であれば、そのシリンダのランプを
点灯し、電磁弁２０、２８を閉じる。更に圧力スイッチ
２４のオンオフの状態を読込み、オンであれば圧力スイ
ッチ２４のランプを点灯し、またオフであればそのまま
でルーチン(2)に進む（第５図(b)）。In routine (1), read the exhaust gas temperature of each cylinder, check if these are over 300 ℃, and check all 300
The on / off state of the pressure switch 24 exceeding the temperature is read, and if it is off, the process returns. If it is on, the lamp of the pressure switch 24 is turned on, the solenoid valves 20 and 28 are closed, and the routine proceeds to routine (2). If the discarding temperature of any of the cylinders is 300 ° C. or lower, the lamp of that cylinder is turned on and the solenoid valves 20 and 28 are closed. Further, the on / off state of the pressure switch 24 is read, and if it is on, the lamp of the pressure switch 24 is turned on, and if it is off, the routine proceeds to the routine (2) (Fig. 5 (b)).
ルーチン(2)では、リセットスイッチ３５を読込み、オ
ンであれば電磁弁２０、２８を開いて運転を再開できる
状態とし、各ランプを消灯してリターンし、オフであれ
ばそのままリターンする（第５図(c)）。In the routine (2), the reset switch 35 is read, and if it is on, the solenoid valves 20 and 28 can be opened to restart the operation, each lamp is turned off and the routine returns, and if it is off, the routine directly returns. (Figure (c)).
以上のような動作により、膠着等による逆止弁２２の動
作不良が検出され、失火時におけるガス供給路１７の破
損や煙道爆発のような事故が防止されるのである。By the above-described operation, malfunction of the check valve 22 due to sticking or the like is detected, and accidents such as damage to the gas supply passage 17 and flue explosion at the time of misfire are prevented.
〈発明の効果〉 上述の実施例から明らかなように、この発明の副室式大
形ガス機関の安全装置は、副室へのガス供給路に逆止弁
を備えた副室式大形ガス機関において、逆止弁よりも上
流側のガス供給路内の圧力と、排気温度とを検出し、ガ
ス供給路内の圧力が設定値よりも上がるか、排気温度が
設定値よりも下がった場合に、シリンダ及び副室へのガ
ス供給を停止するようにしたものである。<Effects of the Invention> As is clear from the above-described embodiments, the safety device for the sub-chamber large-sized gas engine of the present invention is a sub-chamber large-sized gas provided with a check valve in the gas supply path to the sub-chamber. In the engine, when the pressure in the gas supply path upstream of the check valve and the exhaust temperature are detected, and the pressure in the gas supply path rises above the set value or the exhaust temperature falls below the set value. In addition, the gas supply to the cylinder and the sub chamber is stopped.
従って、使用環境から膠着状態が生じやすいガス供給路
の逆止弁に開閉動作の不調が生じても、開状態と閉状態
のいずれの場合でもこれを確実に検出し、直ちにガス供
給を遮断して機関の運転を停止することができ、失火時
のバックファイヤによるガス供給路の破損や、未燃焼の
混合気が排気管路に充満することによる煙道爆発のよう
な事故を防止することが可能となるのである。Therefore, even if the check valve in the gas supply path is prone to sticking due to the operating environment, the check valve in the open or closed state can be reliably detected and the gas supply can be immediately shut off, regardless of whether the check valve is open or closed. It is possible to prevent the engine from operating and prevent accidents such as damage to the gas supply path due to backfire at the time of misfire and flue explosion due to unburned air-fuel mixture filling the exhaust pipe. It will be possible.
第１図はこの発明の基本的な構成による第１の実施例の
系統図、第２図乃至第５図は第２の実施例を示すもので
あり、第２図は基本的な構成を示す系統図、第３図は応
用例の概略平面図、第４図は制御部のブロック図、第５
図(a)〜(c)は制御のフローチャートである。 １０…排気管、１１…熱電対、１５…副室、１７…ガス
供給路、２０…電磁弁、２２…逆止弁、２４…圧力スイ
ッチ、２６…リレーボックス、２７…比較器、２８…電
磁弁、３２…電磁ピックアップ、３３…制御部。FIG. 1 is a system diagram of a first embodiment according to the basic structure of the present invention, FIGS. 2 to 5 show a second embodiment, and FIG. 2 shows the basic structure. System diagram, FIG. 3 is a schematic plan view of an application example, FIG. 4 is a block diagram of a control unit, and FIG.
Figures (a) to (c) are flowcharts of control. 10 ... Exhaust pipe, 11 ... Thermocouple, 15 ... Sub chamber, 17 ... Gas supply path, 20 ... Solenoid valve, 22 ... Check valve, 24 ... Pressure switch, 26 ... Relay box, 27 ... Comparator, 28 ... Electromagnetic Valve, 32 ... Electromagnetic pickup, 33 ... Control part.
Claims (2)
式大形ガス機関において、 上記逆止弁よりも上流側に設けられてガス供給路内の圧
力を検出する圧力センサと、 排気通路に配置されて排気温度を検出する温度センサ
と、 上記圧力センサにより検出されたガス供給路内の圧力が
あらかじめ設定された値よりも上がった場合か、あるい
は上記温度センサにより検出された排気温度があらかじ
め設定された値よりも下がった場合に、シリンダ及び副
室へのガス供給を停止するガス遮断手段、 とを備えたことを特徴とする副室式大形ガス機関の安全
装置。1. A large-sized sub-chamber type gas engine having a check valve in a gas supply path to the sub chamber, the pressure being provided upstream of the check valve to detect the pressure in the gas supply path. A sensor, a temperature sensor that is arranged in the exhaust passage to detect the exhaust temperature, and if the pressure in the gas supply passage detected by the pressure sensor rises above a preset value or is detected by the temperature sensor. Safety of a large-chamber gas engine with a sub-chamber, characterized in that it has gas shut-off means for stopping the gas supply to the cylinder and the sub-chamber when the exhaust gas temperature falls below a preset value. apparatus.
が１００rpm以上の時に排気温度が３００℃以下になる
と、シリンダ及び副室へのガス供給を停止するようにし
た特許請求の範囲第１項記載の副室式大形ガス機関の安
全装置。2. An engine speed detecting means is provided, and when the engine speed is 100 rpm or more and the exhaust temperature becomes 300 ° C. or less, the gas supply to the cylinder and the auxiliary chamber is stopped. The safety device for the large-sized sub-chamber type gas engine according to item 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61254439A JPH065057B2 (en) | 1986-10-24 | 1986-10-24 | Safety device for large chamber gas engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61254439A JPH065057B2 (en) | 1986-10-24 | 1986-10-24 | Safety device for large chamber gas engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63109275A JPS63109275A (en) | 1988-05-13 |
| JPH065057B2 true JPH065057B2 (en) | 1994-01-19 |
Family
ID=17265013
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61254439A Expired - Lifetime JPH065057B2 (en) | 1986-10-24 | 1986-10-24 | Safety device for large chamber gas engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH065057B2 (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001037230A (en) * | 1999-07-15 | 2001-02-09 | Toshiba Corp | Mutli-point pressurization type spherical plane seat for semiconductor stack and bolt |
| JP4796531B2 (en) * | 2007-03-30 | 2011-10-19 | 大阪瓦斯株式会社 | engine |
| BRPI0921690A2 (en) * | 2008-12-26 | 2016-02-16 | Mitsubishi Heavy Ind Ltd | gas engine with spark plug and hole cooling holes |
| WO2010074273A1 (en) * | 2008-12-26 | 2010-07-01 | 三菱重工業株式会社 | Gas engine |
| JP5655697B2 (en) * | 2011-05-12 | 2015-01-21 | 株式会社豊田自動織機 | Sub-chamber gas engine |
| JP2014141952A (en) * | 2013-01-25 | 2014-08-07 | Denso Corp | Internal combustion engine fuel injection device |
| JP2014141950A (en) * | 2013-01-25 | 2014-08-07 | Denso Corp | Internal combustion engine fuel injection device |
| JP6069062B2 (en) * | 2013-03-22 | 2017-01-25 | 川崎重工業株式会社 | Fuel supply control device for sub-chamber gas engine |
-
1986
- 1986-10-24 JP JP61254439A patent/JPH065057B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63109275A (en) | 1988-05-13 |
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