JPS63109275A - Safety device of auxiliary chamber type large scale gas engine - Google Patents
Safety device of auxiliary chamber type large scale gas engineInfo
- Publication number
- JPS63109275A JPS63109275A JP61254439A JP25443986A JPS63109275A JP S63109275 A JPS63109275 A JP S63109275A JP 61254439 A JP61254439 A JP 61254439A JP 25443986 A JP25443986 A JP 25443986A JP S63109275 A JPS63109275 A JP S63109275A
- Authority
- JP
- Japan
- Prior art keywords
- gas supply
- check valve
- pressure
- supply path
- 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.)
- Granted
Links
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 6
- 230000002265 prevention Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 4
- 238000004880 explosion Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000007257 malfunction Effects 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 1
- 238000004891 communication 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
- 238000005516 engineering process Methods 0.000 description 1
- 239000000446 fuel Substances 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
Abstract
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。DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a safety device for a large gas engine equipped with 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
、失火時のパ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れていなかった。<Conventional technology and its problems> Large gas engines equipped with an auxiliary chamber for ignition are known, but
In conventional engines, the gas supply path to the auxiliary chamber is structured to simply supply gas from the regulator to the auxiliary chamber, and a special system is installed to prevent accidents such as damage to the gas supply path due to packfire in the event of a misfire. No countermeasures 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
生しやすく、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。For this reason, the present inventors came up with the idea of inserting a check valve in the gas supply path to the subchamber to prevent misfire accidents, and as a result of researching a check valve with a structure suitable for this purpose, they found that Due to the nature of the environment in which the check valve is installed in the gas supply path, a stalemate is likely to occur, and it has been found that simply installing a check valve is insufficient 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。This invention focuses on these problems, and aims to reliably prevent accidents such as damage to the gas supply path in the event of a misfire, or accidents such as unburned gas filling the exhaust pipe and causing a flue explosion. It has been done.
〈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 for a pre-chamber type large gas engine of the present invention includes a pre-chamber equipped with a check valve in a gas supply path to the pre-chamber. In large-scale gas engines, a pressure sensor is installed upstream of the check valve to detect the pressure in the gas supply path, and a temperature sensor is installed in the exhaust path to detect the exhaust temperature. Gas supply to the cylinder and subchamber is stopped when the temperature rises above a preset value or when the exhaust temperature falls below a preset value.
く作用〉
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がら
温度センサにより検出され、ガス供給路内の圧力上昇は
圧力センサにより検出されるので、逆止弁の膠着が開、
閉のいずれ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。If the check valve is stuck in the closed state, gas cannot be supplied to the auxiliary chamber, causing a misfire. If the check valve is stuck in the open state, ignition cannot be ignited, resulting in a misfire, and at the same time, the gas supply path is blocked through the auxiliary chamber, resulting in a misfire. High pressure inside the cylinder is applied. This misfire is detected by a temperature sensor because the temperature of the exhaust gas discharged from the cylinder decreases, and a pressure sensor detects an increase in the pressure in the gas supply path, so the check valve becomes stuck and opens.
If it occurs in either closed state, it will be detected, and the gas supply to the cylinder and subchamber will be immediately cut off to stop engine operation. This prevents accidents such as damage to the gas supply path and flue explosion in the event of a misfire caused by a stuck 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 embodiment 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 of the basic configuration 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に設けられた熱雷対であ
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, and 4 is an intake valve. Air 5 and gas 7 whose pressure is regulated by a regulator 6 are mixed in the mixer 1, passed through the intake pipe 3, and are sent to the cylinder. 8. Also, 9 is an exhaust valve, 1
0 is an exhaust pipe, 11 is a thermal lightning pair provided in the exhaust pipe 10, and the exhaust gas in the cylinder 8 is discharged 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
２２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２
３と圧力スイッチ２４が設けられている。15 is an auxiliary chamber provided in communication with the cylinder 8, 16 is a spark plug, 17 is a gas supply path to the auxiliary chamber 11, and the gas 7a is supplied through the gas supply path 17. This gas supply path 17 is provided with a filter 18, a regulator 19, a solenoid valve 20, a first check valve 21, and a second check valve 22 in this order from upstream. A safety valve 2 is disposed near the subchamber 15 and is connected to the first check valve 21.
3 and a pressure switch 24 are provided.
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ｌ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。26 is a relay box, 27 is a comparator, 28 is a solenoid valve installed in the pipeline between regulator 6 and mixer l, and relay box 26 is connected to thermocouple 11 and pressure switch 2.
The electromagnetic valve 20.28 is configured to open and close in accordance with the output of the solenoid valve 20.28.
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。During normal operation, the second check valve 22 automatically opens and closes in response to the pressure that changes with the vertical movement of the piston 30 in the cylinder 8. However, if the second check valve 22 is stuck, etc. If it remains closed due to this reason, 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 corresponding signal is output from the comparator 27, which activates the relay box 26 to close the solenoid valve 20.28.
このためガス７．７ａの供給が遮断されて機関は停止す
る。Therefore, the supply of gas 7.7a is cut off and the engine stops.
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２０．２８を閉じ、機関
を停止させる。Furthermore, if the second check valve 22 remains open due to a stalemate or other cause, the engine will misfire and the exhaust temperature will drop, while
The backflow from within the cylinder 8 closes the first check valve 21, and the high pressure turns on the pressure switch 24, which activates the relay box 26 to close the solenoid valve 20.28 and stop the engine.
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, at this time, the high pressure applied to the gas supply path 17 causes the safety valve 23 to operate and release the pressure, thereby preventing pressure that would damage the gas supply path 17 from being 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図以降は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 this invention,
In reality, control is applied when the engine is operating at a speed above a certain level, and a practical second embodiment is shown from FIG. 2 onwards. Figure 2 is the basic system diagram.
FIG. 3 and subsequent figures show an example of application to a six-cylinder engine, and the same parts as in the first embodiment described above are indicated by the same reference numerals, and only the different points will be explained 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ア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
サが設けられており、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２
３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 rotation sensor is provided, which includes a pulse gear 31 fixed to a crankshaft that rotates in accordance with the stroke of a piston 30, and an electromagnetic pickup 32 disposed correspondingly. The outputs of the pressure switch 24 and thermocouple 11 are input to the control section 33, and the control section 33 is configured to operate in response to these input signals to open and close the electromagnetic valves 20.28. Further, as shown in FIG. 3, the second check valve 22
The thermocouple 11 is also provided for each cylinder, but the first check valve 21, the safety valve 2
3 and the pressure switch 24 are provided in common. Note that, in order to more reliably perform abnormality detection and the accompanying protection function, it is preferable that the first check valve 21, the safety valve 23, and the pressure switch 24 are also provided 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２
０．２８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 , and the control unit 33 inputs A/D converting signals from each thermocouple 11 and outputs on/off signals for the pressure switch 24 and reset switch 35 . an input interface 36 that inputs signals from the electromagnetic pickup 32 via a counter, and a CPU 37 that performs various calculation processes.
, ROM38 and RAM39 used for calculation, solenoid valve 2
0.28 and an indicator lamp (not shown) that indicates the status of the pressure switch provided on the control panel 34 and the misfire cylinder.
It is composed of an output interface 40 that outputs on/off signals for the input terminal and the like.
ガス供給路１７の逆止弁２１及び２２、電磁弁２ｏ、安
全弁２３、圧力スイッチ２４にはそれぞれ耐圧１０’ｋ
ｇ／ｃＪ以上のものが用いられ、また逆止弁２１及び２
２には圧力損の少ないものが、電磁弁２０には開弁圧力
２ｋｇ／ｃｘ１以上のものが、安全弁２３には設定圧力
３〜６ ｋｇ／、ｆｆｌのものが、圧カスイツチ２４に
は設定圧力３〜５ ｋｇ／ｃＪのもの（但し、安全弁２
３よりは低い設定値）が、それぞれ用いられる。The check valves 21 and 22, the solenoid valve 2o, the safety valve 23, and the pressure switch 24 of the gas supply path 17 each have a pressure resistance of 10'K.
g/cJ or more, and the check valves 21 and 2
2 has a low pressure loss, the solenoid valve 20 has a valve opening pressure of 2 kg/cx1 or more, the safety valve 23 has a set pressure of 3 to 6 kg/ffl, and the pressure switch 24 has a set pressure 3 to 5 kg/cJ (However, safety valve 2
A setting value lower than 3) is 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 explained 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、ＩＱＯｒｐｍ以上であればル
ーチン（１）に進み、１００ｒｐｍ以上でなければ電磁
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、オンであればリターンする（第５図（ａ
））。First, the engine rotation speed is detected by counting the signal from the electromagnetic pickup 32, and if it is above IQOrpm, proceed to routine (1), and if it is not above 100 rpm, check whether the solenoid valve 20.28 is on or off, and if it is off. If it is, proceed to routine (2), and if it is on, return (Fig. 5 (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℃を超えているか否かを見て、すべて３
００ ”Ｃを超えていれば圧力スイッチ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２０．２
８を閉じてルーチン（２）に進む。また、いずれかのシ
リンダの排気温度が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
圧カスイッチ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 temperature of each cylinder,
Check whether these are over 300℃ and check if they are all 3
00"C, reads the on/off state of the pressure switch 24, returns if it is off, turns on the lamp of the pressure switch 24, and turns on the solenoid valve 20.2 if it is on.
8 and proceed to routine (2). Further, if the exhaust gas temperature of any cylinder is 300° C. or lower, the lamp of that cylinder is turned on and the solenoid valve 20.28 is closed. Furthermore, the on/off state of the pressure switch 24 is read, and if it is on, the lamp of the pressure switch 24 is lit, and if it is off, the process continues to 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 routine (2), the reset switch 35 is read,
If it is on, the solenoid valve 20.28 is opened to make it possible to restart the operation, and each lamp is turned off and the return is made. If it is off, the return is made as is (FIG. 5(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。Through the above-described operations, malfunction of the check valve 22 due to stalemate or the like is detected, and accidents such as damage to the gas supply path 17 and flue explosion in the event of a 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 a pre-chamber type large gas engine of the present invention is a pre-chamber type large gas engine equipped with a check valve in the gas supply path to the pre-chamber type. In an engine, the pressure in the gas supply path upstream of the check valve and the exhaust temperature are detected, and if 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 subchamber 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
のパ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 a check valve in a gas supply path that is prone to a stalemate due to the usage environment has a malfunction in its opening/closing operation, this can be reliably detected in both open and closed states, and the gas supply can be immediately shut off. This prevents accidents such as damage to the gas supply line due to a packfire in the event of a misfire, or a flue explosion due to unburned air-fuel mixture filling the exhaust pipe. It becomes 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 the control section, Fig. 5
Figures (a) to (C) are control flowcharts. DESCRIPTION OF SYMBOLS 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... Solenoid valve, 32
...Electromagnetic pickup, 33...control unit.
Claims (2)
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) In a large auxiliary chamber type gas engine equipped with a check valve in the gas supply path to the auxiliary chamber, a pressure sensor is provided upstream of the check valve to detect the pressure in the gas supply path. , a temperature sensor placed in the exhaust passage to detect the exhaust temperature, and a pressure sensor in the gas supply passage detected by the pressure sensor that rises above a preset value, or a temperature sensor detected by the temperature sensor. A safety device for a large pre-chamber type gas engine, comprising: gas cutoff means for stopping gas supply to the cylinder and the pre-chamber when the exhaust temperature falls below a preset value.
０ｒｐｍ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) Equipped with means for detecting the engine speed, and when the engine speed is 10
If the exhaust temperature becomes below 300℃ when the engine speed is above 0rpm,
A safety device for a large pre-chamber type gas engine according to claim 1, wherein gas supply to the cylinder and the pre-chamber is stopped.
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 true JPS63109275A (en) | 1988-05-13 |
| JPH065057B2 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) |
Cited By (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 |
| JP2008248850A (en) * | 2007-03-30 | 2008-10-16 | Osaka Gas Co Ltd | Engine |
| WO2010074273A1 (en) * | 2008-12-26 | 2010-07-01 | 三菱重工業株式会社 | Gas engine |
| JP2010169086A (en) * | 2008-12-26 | 2010-08-05 | Mitsubishi Heavy Ind Ltd | Gas engine with bore cool hole having spark plug |
| JP2012237249A (en) * | 2011-05-12 | 2012-12-06 | Toyota Industries Corp | Sub-chamber type gas engine |
| WO2014115511A1 (en) * | 2013-01-25 | 2014-07-31 | 株式会社デンソー | Fuel injection device of internal combustion engine |
| WO2014115510A1 (en) * | 2013-01-25 | 2014-07-31 | 株式会社デンソー | Fuel injection device for internal combustion engine |
| CN104508275A (en) * | 2013-03-22 | 2015-04-08 | 川崎重工业株式会社 | Fuel supply controlling device for prechamber gas engines |
-
1986
- 1986-10-24 JP JP61254439A patent/JPH065057B2/en not_active Expired - Lifetime
Cited By (12)
| 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 |
| JP2008248850A (en) * | 2007-03-30 | 2008-10-16 | Osaka Gas Co Ltd | Engine |
| WO2010074273A1 (en) * | 2008-12-26 | 2010-07-01 | 三菱重工業株式会社 | Gas engine |
| JP2010169086A (en) * | 2008-12-26 | 2010-08-05 | Mitsubishi Heavy Ind Ltd | Gas engine with bore cool hole having spark plug |
| JP5200115B2 (en) * | 2008-12-26 | 2013-05-15 | 三菱重工業株式会社 | Gas engine |
| US8757127B2 (en) | 2008-12-26 | 2014-06-24 | Mitsubishi Heavey Industries, Ltd. | Gas engine with spark plug and bore-cooling holes |
| US8826883B2 (en) | 2008-12-26 | 2014-09-09 | Mitsubishi Heavy Industries, Ltd. | Gas engine |
| EP2372135A4 (en) * | 2008-12-26 | 2015-10-14 | Mitsubishi Heavy Ind Ltd | GAS ENGINE |
| JP2012237249A (en) * | 2011-05-12 | 2012-12-06 | Toyota Industries Corp | Sub-chamber type gas engine |
| WO2014115511A1 (en) * | 2013-01-25 | 2014-07-31 | 株式会社デンソー | Fuel injection device of internal combustion engine |
| WO2014115510A1 (en) * | 2013-01-25 | 2014-07-31 | 株式会社デンソー | Fuel injection device for internal combustion engine |
| CN104508275A (en) * | 2013-03-22 | 2015-04-08 | 川崎重工业株式会社 | Fuel supply controlling device for prechamber gas engines |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH065057B2 (en) | 1994-01-19 |
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