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JPH0262697B2 - - Google Patents
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JPH0262697B2 - - Google Patents

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Publication number
JPH0262697B2
JPH0262697B2 JP59107524A JP10752484A JPH0262697B2 JP H0262697 B2 JPH0262697 B2 JP H0262697B2 JP 59107524 A JP59107524 A JP 59107524A JP 10752484 A JP10752484 A JP 10752484A JP H0262697 B2 JPH0262697 B2 JP H0262697B2
Authority
JP
Japan
Prior art keywords
gas
lpg
fuel
engine
pressure
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
JP59107524A
Other languages
Japanese (ja)
Other versions
JPS60252152A (en
Inventor
Mitsuyoshi Mori
Fumio Nakano
Shoji Arao
Yoshiharu Ito
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yanmar Co Ltd
Toho Gas Co Ltd
Original Assignee
Yanmar Diesel Engine Co Ltd
Toho Gas Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Yanmar Diesel Engine Co Ltd, Toho Gas Co Ltd filed Critical Yanmar Diesel Engine Co Ltd
Priority to JP59107524A priority Critical patent/JPS60252152A/en
Publication of JPS60252152A publication Critical patent/JPS60252152A/en
Publication of JPH0262697B2 publication Critical patent/JPH0262697B2/ja
Granted legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02DCONTROLLING COMBUSTION ENGINES
    • F02D19/00Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
    • F02D19/06Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
    • F02D19/0602Control of components of the fuel supply system
    • F02D19/0613Switch-over from one fuel to another
    • F02D19/0615Switch-over from one fuel to another being initiated by automatic means, e.g. based on engine or vehicle operating conditions
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02DCONTROLLING COMBUSTION ENGINES
    • F02D19/00Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
    • F02D19/02Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with gaseous fuels
    • F02D19/021Control of components of the fuel supply system
    • F02D19/023Control of components of the fuel supply system to adjust the fuel mass or volume flow
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02DCONTROLLING COMBUSTION ENGINES
    • F02D19/00Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
    • F02D19/06Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
    • F02D19/0639Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed characterised by the type of fuels
    • F02D19/0642Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed characterised by the type of fuels at least one fuel being gaseous, the other fuels being gaseous or liquid at standard conditions
    • F02D19/0647Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed characterised by the type of fuels at least one fuel being gaseous, the other fuels being gaseous or liquid at standard conditions the gaseous fuel being liquefied petroleum gas [LPG], liquefied natural gas [LNG], compressed natural gas [CNG] or dimethyl ether [DME]
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02DCONTROLLING COMBUSTION ENGINES
    • F02D19/00Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
    • F02D19/06Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
    • F02D19/0663Details on the fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
    • F02D19/0673Valves; Pressure or flow regulators; Mixers
    • F02D19/0678Pressure or flow regulators therefor; Fuel metering valves therefor
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M21/00Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
    • F02M21/02Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
    • F02M21/0203Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels characterised by the type of gaseous fuel
    • F02M21/0209Hydrocarbon fuels, e.g. methane or acetylene
    • F02M21/0212Hydrocarbon fuels, e.g. methane or acetylene comprising at least 3 C-Atoms, e.g. liquefied petroleum gas [LPG], propane or butane
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M21/00Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
    • F02M21/02Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
    • F02M21/0203Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels characterised by the type of gaseous fuel
    • F02M21/0215Mixtures of gaseous fuels; Natural gas; Biogas; Mine gas; Landfill gas
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/10Internal combustion engine [ICE] based vehicles
    • Y02T10/30Use of alternative fuels, e.g. biofuels

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は発熱量の異なる燃料ガスを切替えて使
用するガス機関の燃料切替運転方法に関するもの
である。
DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a fuel switching operation method for a gas engine that switches between fuel gases having different calorific values.

〔従来技術〕[Prior art]

例えば都市ガスを常用燃料とし、非常時には液
化石油ガス(以下、本発明ではLPGと略称する)
を燃料とするような発熱量の燃料ガスを切替えて
使用するようなガス機関において、供給圧が高
く、かつ発熱量の低い都市ガスから供給圧が低
く、かつ発熱量の高いLPGに切替える時には、
ガス圧低下によるガスの供給不足により、第1図
の機関回転数と時間との関係線図に示すごとく、
燃料切替時に機関回転数の低下及び機関停止能の
問題が発生する。
For example, city gas is used as a regular fuel, and in case of emergency, liquefied petroleum gas (hereinafter abbreviated as LPG in the present invention)
When switching from city gas, which has a high supply pressure and low calorific value, to LPG, which has a low supply pressure and a high calorific value, in a gas engine that uses fuel gas with a high calorific value such as LPG,
Due to the lack of gas supply due to the drop in gas pressure, as shown in the relationship diagram between engine speed and time in Figure 1,
When switching fuels, problems occur such as a drop in engine speed and the ability to stop the engine.

これは都市ガスからLPGへの切替時のガス機
関の過渡応答性が悪いからであり、切替時にはそ
の負荷軽減措置が必要となり、従来その機関負荷
を低下後に切替運転を行なうため、そのための制
御系統が複雑になるという問題があつた。
This is because the transient response of the gas engine is poor when switching from city gas to LPG, and load reduction measures are required at the time of switching. Conventionally, the control system for this purpose is required to perform switching operation after reducing the engine load. The problem was that it became complicated.

〔発明の目的〕[Purpose of the invention]

そこで、本発明は前記従来の問題点を解消し、
発熱量の異なる熱料ガスを切替えて使用するガス
機関のいかなる運転状態でも何等問題なくその燃
料ガスの切替運転を可能とする方法を提供するこ
とを目的としたものである。
Therefore, the present invention solves the above-mentioned conventional problems,
It is an object of the present invention to provide a method that enables switching operation of fuel gases without any problems in any operating state of a gas engine that switches between heating gases having different calorific values.

〔発明の構成〕[Structure of the invention]

即ち、本発明のガス機関の燃料切替運転方法
は、供給圧の異なる燃料ガスを切替えて使用する
ガス機関において、供給圧の高い燃料ガスと供給
圧の低い燃料ガスとを、高圧用レギユレータと低
圧用ガバナーを夫々介してミキサーで合流させ、
供給圧の高い燃料ガスから供給圧の低い燃料ガス
への切替時、あるいはその直前に供給圧の低い燃
料ガスのガバナーのコントロール弁を開放して燃
料ガスの希薄化を防止することを特徴としたもの
である。
That is, the fuel switching operation method for a gas engine of the present invention is such that, in a gas engine that switches between fuel gases having different supply pressures, fuel gas with a high supply pressure and fuel gas with a low supply pressure are switched between a high-pressure regulator and a low-pressure regulator. They are combined in a mixer through respective governors,
It is characterized by opening the control valve of the governor of the fuel gas with low supply pressure when switching from the fuel gas with high supply pressure to the fuel gas with low supply pressure, or just before that, to prevent dilution of the fuel gas. It is something.

〔実施例〕〔Example〕

以下図面を参照して本発明のガス機関の燃料切
替運転方法について説明するが、第2図は本発明
の実施例1における供給圧の高い燃料ガスである
都市ガスTGと、供給圧の低い燃料ガスである
LPGとを切替えて使用するガス機関の燃料ガス
切替運転用の配管図であり、1は空気Aと燃料ガ
スとのミキサーであり、このミキサーで混合され
たミツクスガスMGはこのガス機関Eの燃焼室に
送給されるようになつている。
The fuel switching operation method for a gas engine according to the present invention will be described below with reference to the drawings. Figure 2 shows city gas TG, which is a fuel gas with a high supply pressure, and fuel gas with a low supply pressure in Embodiment 1 of the present invention. gas
This is a piping diagram for fuel gas switching operation of a gas engine that switches between LPG and LPG. 1 is a mixer for air A and fuel gas, and the mix gas MG mixed in this mixer is transferred to the combustion chamber of gas engine E. It is beginning to be sent to

ここで、LPGは約200mmAqの気相の状態で
LPG用遮断弁4及びLPG用ガバナー3またはレ
ギユレータを有するLPG用供給管8から空燃比
調整用バルブ2経由ミキサー1に送られ、一方、
高圧の都市ガスTGは都市ガス用遮断弁6及び都
市ガス用レギユレータ5を有する都市ガス供給管
9からミキサー1に送られるようになつている。
Here, LPG is in a gas phase state of approximately 200 mmAq.
It is sent from an LPG supply pipe 8 having an LPG cutoff valve 4 and an LPG governor 3 or a regulator to the mixer 1 via an air-fuel ratio adjustment valve 2;
High-pressure city gas TG is sent to the mixer 1 from a city gas supply pipe 9 having a city gas shutoff valve 6 and a city gas regulator 5.

上記LPGガバナー3としては、従来一般に大
気圧用のゼロガバナーまたは負圧ガガバナーを使
用しているが、本実施例1ではこのLPG用ガバ
ナー3に電磁ソレノイド7を取付けて燃料ガスを
都市ガスからLPGへの切替時、あるいはその直
前にLPG用バナー3のコントロールバルブを上
記電磁ソレノイド7で開放し、高圧の都市ガス
TGから低圧のLPGへの切替時の燃料ガスの希薄
化を防止している。
Conventionally, a zero governor or a negative pressure governor for atmospheric pressure is generally used as the LPG governor 3, but in this embodiment 1, an electromagnetic solenoid 7 is attached to this LPG governor 3 to convert fuel gas from city gas to LPG. When or just before switching to LPG, the control valve of LPG banner 3 is opened using the electromagnetic solenoid 7, and the high-pressure city gas is switched on.
This prevents dilution of fuel gas when switching from TG to low-pressure LPG.

なお、上記実施例1では、LPG用ガバナー3
のコントロールバルブを開放するために電磁ソレ
ノイド7を使用しているが、電磁ソレノイド7の
代りに機械的な手段を用いても良く、また、本実
施例1ではLPGを気相としているが、LPGガバ
ナー3としてベーパライザーを兼ねたコンバータ
を使用した場合でも本発明を同様に適用できる。
In addition, in the above-mentioned Example 1, the LPG governor 3
Although the electromagnetic solenoid 7 is used to open the control valve of the electromagnetic solenoid 7, mechanical means may be used instead of the electromagnetic solenoid 7.Also, although LPG is used in the gas phase in this embodiment 1, LPG The present invention can be similarly applied even when a converter that also serves as a vaporizer is used as the governor 3.

ここで、上記の都市ガスTGをLPGに切替する
時の都市ガス用遮断弁6、LPG用遮断弁4の各
電磁ソレノイド及びLPG用ガバナー3の電磁ソ
レノイド7の開閉と時間との関係及び燃料供給圧
と時間との関係を第3図の線図に示している。
Here, the relationship between the opening and closing of the electromagnetic solenoids of the city gas cutoff valve 6, the LPG cutoff valve 4, and the electromagnetic solenoid 7 of the LPG governor 3 and time when switching the city gas TG to LPG, and the fuel supply. The relationship between pressure and time is shown in the diagram of FIG.

また、本発明を適用したガス機関の燃料切替時
の過渡応答性を第4図の機関回転数と時間との関
係線図で示しており、第1図の従来例に比べてそ
の過渡応答性が著しく改善される。
In addition, the transient response during fuel switching of the gas engine to which the present invention is applied is shown in the relationship diagram between the engine speed and time in Figure 4, and the transient response is compared to the conventional example in Figure 1. is significantly improved.

次に、第5図は本発明の実施例2におけるガス
機関の燃料ガス切替運転用の配管図であり、第2
図の実施例1と同様に都市ガスTG及びLPGを切
替えて使用するものであり、第2図と同じ部品は
同じ部品番号で示している。
Next, FIG. 5 is a piping diagram for fuel gas switching operation of a gas engine in Embodiment 2 of the present invention.
As in Embodiment 1 shown in the figure, city gas TG and LPG are used selectively, and the same parts as in Fig. 2 are indicated by the same part numbers.

そこで、この実施例2ではLPG用供給管8を
2系統とし、一方にはLPG用遮断弁1,4′及び
正圧ガバナーであるLPG用ガバナー3を設け、
他方にはもう1個のLPG用遮断弁2,10及び
負圧ガバナーであるLPG用ガバナー11を設け
ており、都市ガスTGとの切替時には正圧ガバナ
ーであるLPG用ガバナー3を使用し、その数秒
後には正圧のLPG用ガバナー3から負圧のLPG
ガバナー11への切替を行なう。
Therefore, in this embodiment 2, there are two LPG supply pipes 8, and one is provided with LPG shutoff valves 1 and 4' and an LPG governor 3 which is a positive pressure governor.
On the other hand, another LPG shutoff valve 2, 10 and an LPG governor 11, which is a negative pressure governor, are installed.When switching to city gas TG, the LPG governor 3, which is a positive pressure governor, is used. After a few seconds, the positive pressure LPG governor 3 will change to the negative pressure LPG.
Switching to governor 11 is performed.

ここで、本実施例2における都市ガスTGの
LPGへの切替時の都市ガス用遮断弁6、LPG用
遮断弁1,4′、LPG用遮断弁2,10の各電磁
ソレノイドの開閉と時間との関係及び燃料供給圧
と時間との関係を第6図に示しており、また本実
施例2のガス機関の燃料切替時の過渡応答性を第
7図の機関回転数と時間との関係線図で示してい
るが、第1図の従来に比べてその過渡応答性が改
善されていることが判る。
Here, the city gas TG in Example 2 is
The relationship between opening and closing of each electromagnetic solenoid of city gas cutoff valve 6, LPG cutoff valves 1 and 4', and LPG cutoff valves 2 and 10 and time and the relationship between fuel supply pressure and time when switching to LPG. FIG. 6 shows the transient response during fuel switching of the gas engine according to the second embodiment, which is shown in FIG. 7 as a relationship diagram between engine speed and time. It can be seen that the transient response is improved compared to .

なお、上記の各実施例1または2におけるガス
機関の燃料切替運転方法において、供給圧の高い
都市ガスTGから供給圧の低いLPGに切替時にお
ける都市ガス用遮断弁6、LPG用遮断弁4,4′及
び2,10、電磁ソレノイド7のシーケンスを第
8図に示し、第8図の信号回路図を第9図に示し
ている。
In addition, in the fuel switching operation method of a gas engine in each of the above embodiments 1 or 2, when switching from city gas TG with a high supply pressure to LPG with a low supply pressure, the city gas cutoff valve 6, the LPG cutoff valve 4, 4' and 2, 10, and the sequence of the electromagnetic solenoid 7 are shown in FIG. 8, and the signal circuit diagram of FIG. 8 is shown in FIG.

〔発明の効果〕〔Effect of the invention〕

従つて、本発明を適用すれば、ガス機関におい
て供給圧の高い都市ガスから供給圧の低いLPG
に切替える時、ガス圧低下によるガスの供給不足
により機関回転数の低下及び機関停止を防止で
き、そのガス機関のいかなる運転状態でも何等問
題なく機関運転を可能とし、常用または非常用兼
用ガス機関の提供を可能にするという効果があ
る。
Therefore, by applying the present invention, it is possible to convert city gas, which has a high supply pressure, to LPG, which has a low supply pressure, in a gas engine.
When switching to the gas engine, it is possible to prevent the engine rotation speed from decreasing and the engine from stopping due to insufficient gas supply due to a drop in gas pressure, and the engine can be operated without any problems in any operating state of the gas engine. This has the effect of making it possible to provide

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

第1図は従来のガス機関の燃料ガスに切替時に
おける機関回転数と時間との関係線図、第2図は
本発明の実施例1におけるガス機関の燃料ガス切
替運転用の配管図、第3図は第2図のガス機関の
各電磁ソレノイドの開閉と時間との関係及び燃料
供給圧と時間との関係を示す線図、第4図は第2
図のガス機関の機関回転数と時間との関係線図、
第5図は本発明の実施例2におけるガス機関の燃
料ガス切替運転用の配管図、第6図は第5図のガ
ス機関の各電磁ソレノイドの開閉と時間との関係
及び燃料供給圧と時間との関係を示す線図、第7
図は第5図のガス機関の機関回転数と時間の関係
線図、第8図は上記各実施例1及び2におけるガ
ス機関の燃料ガス切替運転用のシーケンス、第9
図は第8図の信号回路図である。 3……LPG用ガバナー、4……LPG用遮断弁、
4′……LPG用遮断弁(1)、5……都市ガス用レギ
ユレータ、6……都市ガス用遮断弁、7……電磁
ソレノイド、8……LPG用供給管、9……都市
ガス用供給管、10……LPG用遮断弁(2)、11
……LPG用ガバナー、E……ガス機関。
FIG. 1 is a diagram showing the relationship between engine speed and time when switching to fuel gas in a conventional gas engine, FIG. 2 is a piping diagram for fuel gas switching operation of a gas engine in Embodiment 1 of the present invention, and FIG. Figure 3 is a diagram showing the relationship between opening and closing of each electromagnetic solenoid of the gas engine in Figure 2 and time, and the relationship between fuel supply pressure and time.
The relationship diagram between the engine speed and time of the gas engine shown in the figure,
FIG. 5 is a piping diagram for fuel gas switching operation of a gas engine in Embodiment 2 of the present invention, and FIG. 6 is a relationship between opening/closing and time of each electromagnetic solenoid of the gas engine in FIG. 5, and fuel supply pressure and time. Diagram showing the relationship between
The figure is a relationship diagram between the engine rotation speed and time of the gas engine in Figure 5, Figure 8 is the sequence for fuel gas switching operation of the gas engine in each of the above embodiments 1 and 2, and Figure 9 is a diagram showing the relationship between the engine speed and time of the gas engine.
The figure is a signal circuit diagram of FIG. 3... LPG governor, 4... LPG shutoff valve,
4'... LPG cutoff valve (1), 5... City gas regulator, 6... City gas cutoff valve, 7... Electromagnetic solenoid, 8... LPG supply pipe, 9... City gas supply Pipe, 10... LPG shutoff valve (2), 11
... LPG governor, E... gas engine.

Claims (1)

【特許請求の範囲】[Claims] 1 供給圧の異なる燃料ガスを切替えて使用する
ガス機関において、供給圧の高い燃料ガスと供給
圧の低い燃料ガスとを、高圧用レギユレータと低
圧用ガバナーを夫々介してミキサーで合流させ、
供給圧の高い燃料ガスから供給圧の低い燃料ガス
への切替時、あるいはその直前にミキサー内の燃
料ガスの希薄化を防止するように、供給圧の低い
燃料ガスのガバナーのコントロール弁を開放する
ことを特徴とするガス機関の燃料切替運転方法。
1. In a gas engine that switches between fuel gases with different supply pressures, a fuel gas with a high supply pressure and a fuel gas with a low supply pressure are combined in a mixer through a high pressure regulator and a low pressure governor, respectively,
When or just before switching from a fuel gas with a high supply pressure to a fuel gas with a low supply pressure, open the control valve of the governor of the fuel gas with a low supply pressure to prevent dilution of the fuel gas in the mixer. A fuel switching operation method for a gas engine characterized by the following.
JP59107524A 1984-05-29 1984-05-29 Selective operating method of fuel for gas engine Granted JPS60252152A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP59107524A JPS60252152A (en) 1984-05-29 1984-05-29 Selective operating method of fuel for gas engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59107524A JPS60252152A (en) 1984-05-29 1984-05-29 Selective operating method of fuel for gas engine

Publications (2)

Publication Number Publication Date
JPS60252152A JPS60252152A (en) 1985-12-12
JPH0262697B2 true JPH0262697B2 (en) 1990-12-26

Family

ID=14461374

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59107524A Granted JPS60252152A (en) 1984-05-29 1984-05-29 Selective operating method of fuel for gas engine

Country Status (1)

Country Link
JP (1) JPS60252152A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6385259A (en) * 1986-09-29 1988-04-15 Yanmar Diesel Engine Co Ltd Low pressure distributing type ignition device for medium and large type gas engine
JPH05156974A (en) * 1991-12-06 1993-06-22 Kubota Corp Fuel supply device for both regular and emergency generators
DE29714887U1 (en) * 1997-08-20 1997-10-09 Motoren-Werke Mannheim Ag, 68167 Mannheim Gas engine
JP4506613B2 (en) * 2004-11-12 2010-07-21 マツダ株式会社 Powertrain control device
JP5422039B1 (en) * 2012-12-27 2014-02-19 株式会社フジテック Engine fuel supply device and engine generator using the same
JP6057795B2 (en) * 2013-03-19 2017-01-11 大阪瓦斯株式会社 Mixture supply system
PL233486B1 (en) * 2017-10-30 2019-10-31 Univ Przyrodniczy W Lublinie Dual-fuel supply system for compression-ignition internal combustion engines with a mixture of diesel oil and LPG or CNG

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5793650A (en) * 1980-12-02 1982-06-10 Niigata Eng Co Ltd Automatic operating device of fuel supply unit
US4357004A (en) * 1981-07-06 1982-11-02 Union Carbide Corporation Apparatus for refining molten metal

Also Published As

Publication number Publication date
JPS60252152A (en) 1985-12-12

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