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JPS59162337A - Diesel engine by fuel of low temperature boiling point - Google Patents

Diesel engine by fuel of low temperature boiling point

Info

Publication number
JPS59162337A
JPS59162337A JP58037063A JP3706383A JPS59162337A JP S59162337 A JPS59162337 A JP S59162337A JP 58037063 A JP58037063 A JP 58037063A JP 3706383 A JP3706383 A JP 3706383A JP S59162337 A JPS59162337 A JP S59162337A
Authority
JP
Japan
Prior art keywords
fuel
boiling point
lpg
diesel
temperature boiling
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
Application number
JP58037063A
Other languages
Japanese (ja)
Other versions
JPH024773B2 (en
Inventor
Mitsuyoshi Mori
森　光良
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
Original Assignee
Yanmar Diesel Engine 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 filed Critical Yanmar Diesel Engine Co Ltd
Priority to JP58037063A priority Critical patent/JPS59162337A/en
Publication of JPS59162337A publication Critical patent/JPS59162337A/en
Publication of JPH024773B2 publication Critical patent/JPH024773B2/ja
Granted legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
    • F02D19/06—Controlling 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
    • F02D19/08—Controlling 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 simultaneously using pluralities of fuels
    • F02D19/10—Controlling 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 simultaneously using pluralities of fuels peculiar to compression-ignition engines in which the main fuel is gaseous
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
    • F02D19/06—Controlling 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
    • F02D19/0639—Controlling 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
    • F02D19/0642—Controlling 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
    • F02D19/0647—Controlling 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]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
    • F02D19/06—Controlling 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
    • F02D19/0663—Details on the fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
    • F02D19/0686—Injectors
    • F02D19/0689—Injectors for in-cylinder direct injection
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
    • F02D19/06—Controlling 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
    • F02D19/0663—Details on the fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
    • F02D19/0686—Injectors
    • F02D19/0694—Injectors operating with a plurality of fuels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
    • F02D19/06—Controlling 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
    • F02D19/08—Controlling 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 simultaneously using pluralities of fuels
    • F02D19/081—Adjusting the fuel composition or mixing ratio; Transitioning from one fuel to the other
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
    • F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
    • F02M21/0218—Details on the gaseous fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
    • F02M21/0287—Details on the gaseous fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers characterised by the transition from liquid to gaseous phase ; Injection in liquid phase; Cooling and low temperature storage
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D2200/00—Input parameters for engine control
    • F02D2200/02—Input parameters for engine control the parameters being related to the engine
    • F02D2200/06—Fuel or fuel supply system parameters
    • F02D2200/0606—Fuel temperature
    • 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
    • Y02T10/30—Use of alternative fuels, e.g. biofuels

Landscapes

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

Abstract

PURPOSE:To prevent a bubble from being generated in a fuel passage so as to enable injection to be performed, by directly injecting mixed fuel, between fuel of liquefied petroleum gas (LPG), alcohol, naphtha, etc. having a boiling point of low temperature and Diesel fuel, under a state as left in a high pressure liquid phase into a cylinder using a fuel pump and a nozzle. CONSTITUTION:Liquefied petroleum gas (LPG) fuel in an LPG tank 10 is fed under a state as left in a liquid phase to a static mixer 16 through a fuel pipe 10b maintained under the condition at a pressure higher than the vapor pressure of the LPG fuel, while fuel in a Diesel fuel tank 11 is fed to the static mixer 16 through a booster pump 20 and the fuel pipe 10b. The fuel uniformly mixed by the static mixer 16 is directly injected into the cylinder of a Diesel engine 1 through a fuel injection ported pump 17 and an injection nozzle 7.

Description

【発明の詳細な説明】 本発明は、低温度沸点燃料ディーセル機関に関し、殊に
、ＬＰＧ　、ＮＧＬ、ナフサ等低沸点の液相燃料とディ
ーゼル燃料とを併用する低温度沸点燃料使用のディーゼ
ル機関に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a diesel engine using a low-temperature boiling point fuel, and more particularly to a diesel engine using a low-temperature boiling point fuel that uses a combination of a low-boiling point liquid phase fuel such as LPG, NGL, or naphtha, and diesel fuel. .

従来より石油工場、石油化学工場の廃ガスあるいは、油
井からの回収ガス等を圧縮化した液化石油ガス（ＬＰＧ
）が自動車用機関のガソリンの代りに広く用いられるに
至っている。Liquefied petroleum gas (LPG) has been produced by compressing waste gas from oil factories, petrochemical factories, or gas recovered from oil wells.
) has come to be widely used in place of gasoline in automobile engines.

ところが、このＬＰＧ機関では、混合気を圧縮するので
、圧縮化を上けると、異常燃焼（自己着火、急速燃焼）
を発生し、このため、圧縮比を低く（５〜７程度）する
ことにより、機関効率が悪い。又、異常燃焼を避けるた
め過給に対しては不可能となり、したがって、出力が小
さい。そのため、圧縮行程でガス燃料を噴出する方法も
考えられるか、燃料ガスを圧縮する仕事が大きくなり、
かつ、装置が大きく実用的に成り立たたない。However, since this LPG engine compresses the air-fuel mixture, increasing the compression may cause abnormal combustion (self-ignition, rapid combustion).
Therefore, by lowering the compression ratio (approximately 5 to 7), the efficiency of the engine is poor. Furthermore, supercharging is not possible to avoid abnormal combustion, and therefore the output is small. Therefore, a method of ejecting gas fuel during the compression stroke may be considered, or the work of compressing the fuel gas will be large.
Moreover, the device is too large to be practical.

一方、燃料ガスとディーセル燃料とを併用した複燃料テ
ィーゼ゛ル機関として、着火用液体燃料として小量の軽
油又は重油を用い、噴射ポンプとノズルを用いてシリン
ダ内に直接噴射し、圧縮行程の終りに予め吸入混合した
ＬＰＧのガス燃料に着火を行うようにしたものが提案さ
れている。この場合も、燃料ガスの比容積が大きいので
、一定のシリンダ容積で吸入できる空気の容積がその分
だけ減少してしまい、したがって、出力が液体燃料を用
いた場合に比へ著しく減少する欠点がある。On the other hand, as a dual-fuel teaser engine that uses both fuel gas and diesel fuel, a small amount of light oil or heavy oil is used as the liquid fuel for ignition, and it is directly injected into the cylinder using an injection pump and nozzle, and the compression stroke is A system has been proposed in which the LPG gas fuel that has been sucked and mixed in advance is ignited at the end. In this case as well, since the specific volume of the fuel gas is large, the volume of air that can be taken in with a constant cylinder volume decreases by that amount, and therefore, there is a disadvantage that the output is significantly reduced compared to when liquid fuel is used. be.

ところで、昨今、国際競争力の低下に伴い、石油化学の
エチレン原料用のナフサ需要が跪退し、ナフサをディー
ゼル機関用燃料として使用するニーズが高まっている。Incidentally, in recent years, with the decline in international competitiveness, the demand for naphtha as a raw material for ethylene in petrochemicals has declined, and the need for using naphtha as fuel for diesel engines has increased.

又周知のように、ＬＰＧは沸点が特に低く（プロパンは
一４０℃、ブタンは一〇、５℃）、次いでメタノールは
６４°Ｃ，ＮＧＬ（天然ガソリン）及び軽質ナフサは３
０°Ｃ〜１４０℃の順に沸点が高くなっている。As is well known, LPG has a particularly low boiling point (propane has a boiling point of -40°C, butane has a boiling point of 10.5°C), methanol has a boiling point of 64°C, and NGL (natural gasoline) and light naphtha have a boiling point of 3°C.
The boiling point increases in the order of 0°C to 140°C.

然るに、これら燃料をディーゼル機関用燃料として液相
のまま使用すると、燃料噴射ポンプの燃料吸込み側等の
圧力減少部分に気泡を生じ易く、しかも、通常使用され
ているディーゼル燃料と混合させると、その混合後に気
泡が生じて、ペーパーロックの発生を誘発する欠点があ
る。However, if these fuels are used in their liquid phase as fuel for diesel engines, they tend to form bubbles in pressure reduction areas such as the fuel suction side of fuel injection pumps, and when mixed with commonly used diesel fuel, There is a drawback that air bubbles are generated after mixing, which induces the formation of paper locks.

そこで本発明は、これらの欠点に鑑み創作されたもので
、ＬＰＧ、アルコール及びナフサ等を高圧液相のままで
、燃料ポンプとノズルを用いたシリンダ内に直接噴射し
、前記従来の出力に関する問題点を回避しつつ、燃料系
統に気泡が生じないようにするとともに、ナフサをもデ
ィーゼル機関燃料として使用できる低温度沸点燃料ディ
ーゼル機関を提供することにある。Therefore, the present invention was created in view of these drawbacks, and it directly injects LPG, alcohol, naphtha, etc. in a high-pressure liquid phase into a cylinder using a fuel pump and a nozzle, thereby solving the problems related to the conventional output. It is an object of the present invention to provide a low-temperature boiling point fuel diesel engine in which bubbles are not generated in the fuel system while avoiding the above problems, and naphtha can also be used as diesel engine fuel.

本発明の構成を実施例にもとづき詳細に説明するに、第
１図は本発明の実施例に係る一部概念断面図、第２図は
低沸点燃料としてＬＰＧを使用した場合の他の実施例に
係る一部概念断面図、第３図は液相の低温度沸点燃料と
ディーゼル燃料等の２種類の液体を混合する混合装置の
系統図を示す。The structure of the present invention will be explained in detail based on embodiments. Fig. 1 is a partially conceptual sectional view of the embodiment of the present invention, and Fig. 2 is another embodiment in which LPG is used as the low boiling point fuel. FIG. 3 shows a system diagram of a mixing device for mixing two types of liquids, such as liquid-phase low-temperature boiling point fuel and diesel fuel.

図中符号１は非常用発電機等と直結した竪形中形ティー
セル機関を示し、１はシリンダー、２はピストンで、そ
の頂部に燃焼室６を有し、本機関は直噴形燃焼方式を採
用している。４はシリンダヘッドで吸・排気孔５，６を
設けている。７は噴射ノズルで通常のボンシュ式噴射ノ
ズルを用いている。１６はスタティックミキサー、１７
は燃料吸入口１７ａを有するポンシュ形燃料噴射ポンプ
である。Reference numeral 1 in the figure indicates a vertical medium-sized tea cell engine that is directly connected to an emergency generator, etc., 1 is a cylinder, 2 is a piston, and has a combustion chamber 6 at the top.This engine uses a direct injection combustion method. We are hiring. 4 is a cylinder head provided with intake and exhaust holes 5 and 6. 7 is an injection nozzle, and a normal Bonsch type injection nozzle is used. 16 is a static mixer, 17
is a ponche type fuel injection pump having a fuel inlet 17a.

第１図に示す実施例において、符号１０はＬＰＧタンク
、１１はディーゼル燃料タンクでその内部に軽油が大気
圧下で貯蔵されている。又、符号１０ｂはＬ　ｌ）　Ｇ
タンク側の液相のＬＰＧ燃料をその蒸気圧より高圧状態
に維持する燃料管である。In the embodiment shown in FIG. 1, reference numeral 10 is an LPG tank, and 11 is a diesel fuel tank, in which light oil is stored under atmospheric pressure. Also, the code 10b is L l) G
This is a fuel pipe that maintains the liquid phase LPG fuel on the tank side at a higher pressure than its vapor pressure.

第３図の燃料混合装置の系統図において、符号１２は第
１ポンプ、１３は第２ポンプ、１４はその中間にある無
段変速機、１５は直流モータ、１６ｇ１％テインクミキ
サーで該ミキサー１６はスクリュー片を重ねて流体の分
割・混合を繰返すことによって均一に混合させる機能を
有する。In the system diagram of the fuel mixing device shown in FIG. 3, numeral 12 is the first pump, 13 is the second pump, 14 is the continuously variable transmission in the middle, 15 is the DC motor, and the mixer 16 is a 16g 1% ink mixer. has the function of uniformly mixing the fluid by repeatedly dividing and mixing the fluid by overlapping the screw pieces.

第１図の実施例においては、機関始動時に、テイーゼル
燃料（軽油）を主体（全混合燃料の５０％ａ、上）とし
て機関に供給すべく、第３図に図示の第１ポンプ１２の
みを回転させる。機関起動後は、第１ポンプ１２の回転
を低速化し、第２ポンプ１３を高速化して、液相のＬＰ
Ｇ燃料を主体（全混合燃料の９０％以上）として機関に
供給する。In the embodiment shown in FIG. 1, only the first pump 12 shown in FIG. Rotate. After the engine is started, the rotation speed of the first pump 12 is reduced and the speed of the second pump 13 is increased to pump the liquid phase LP.
G fuel is mainly supplied to the engine (more than 90% of the total mixed fuel).

混合された燃料のうち、＝’ＬＰＧ燃料は低セタン価の
ため自己種火し難いので、ディーゼル燃料が自己種火し
て発火源となり、次いで液相のＬＰＧ燃料が急激に気化
して燃焼する。又、噴射ノズル７よりの燃料噴射は、通
常のディーゼル機関と同様、空気のみを圧縮しく圧縮比
１２）、その適切な時期に行うので、圧縮行程中の自己
着火による異常燃焼は生じない。Among the mixed fuels, LPG fuel is difficult to self-ignite due to its low cetane number, so diesel fuel self-ignites and becomes an ignition source, and then liquid phase LPG fuel rapidly vaporizes and burns. . Further, since the fuel injection from the injection nozzle 7 is performed at an appropriate time with a compression ratio of 12) that only compresses air, as in a normal diesel engine, abnormal combustion due to self-ignition during the compression stroke does not occur.

なお、図示しないが過給機を付設することにより、通常
のディーゼル機関と同様高出力化することもできる。Note that, although not shown, by attaching a supercharger, the output can be increased like a normal diesel engine.

符号２０は、第１ポンプ１２の入口側圧力を第２ポンプ
の入口側圧力と同圧に昇圧させるためのポンプである。Reference numeral 20 denotes a pump for increasing the pressure on the inlet side of the first pump 12 to the same pressure as the pressure on the inlet side of the second pump.

次に第２図に示す他の実施例につき説明すると、符号８
は点火プラグで、これの代りにグロープラグ（電気火花
点火２００ｍＪ、以上の高エネルギー相当のもの）を使
用することもできる。その電源は機関駆動発電機自体よ
り供給することもできる。Next, another embodiment shown in FIG. 2 will be explained.
is an ignition plug, and a glow plug (equivalent to electric spark ignition of 200 mJ or higher energy) can also be used instead. The power source can also be provided by the engine drive generator itself.

１０ａは低沸点燃料として液相のＬＰＧを貯蔵するタン
クで、その底部からは液相のＬＰＧが、燃料ポンプ１７
の燃料吸入口１７ａに、ＬＰＧの蒸気圧より高圧状態に
維持する燃料管１０ｂを介して供給される。１０Ｃは低
沸点燃料の液相のＬＰＧに潤滑油を若干量高圧混入する
ためのパイプである。その混合手段は第３図の混合装置
の構成と同様である。10a is a tank for storing liquid phase LPG as a low boiling point fuel, and liquid phase LPG is pumped from the bottom of the tank to the fuel pump 17.
The fuel is supplied to the fuel intake port 17a of the LPG via a fuel pipe 10b that maintains the pressure at a higher pressure than the vapor pressure of LPG. 10C is a pipe for mixing a small amount of lubricating oil under high pressure into liquid phase LPG, which is a low boiling point fuel. The mixing means is similar in construction to the mixing device shown in FIG.

なお、第１図、第２図の各実施例において吸気自体予熱
して圧縮時の空気温度を上げることもよい。In addition, in each of the embodiments shown in FIGS. 1 and 2, it is also possible to preheat the intake air itself to raise the air temperature during compression.

以上要するに本発明は、ＬＰＧ、アルコール。In summary, the present invention relates to LPG and alcohol.

ナフサ等の低温度沸点燃料とディーゼル燃料とを可変混
合手段でもって混合し、該混合燃料の蒸気圧より高圧に
維持する手段でもって燃料タンクから液相状態のまま燃
料噴射ポンプに供給するようにし、該混合燃料を燃料噴
射ノズルから圧縮行程終了時期の機関シリンダー内に直
接噴射するようにした低温度沸点燃料ディーゼル機関で
あるから、次の効果を奏する。A low-temperature boiling point fuel such as naphtha and diesel fuel are mixed by a variable mixing means, and are supplied from a fuel tank in a liquid phase to a fuel injection pump by means of maintaining the pressure at a higher pressure than the vapor pressure of the mixed fuel. Since this is a low temperature boiling point fuel diesel engine in which the mixed fuel is directly injected from the fuel injection nozzle into the engine cylinder at the end of the compression stroke, the following effects are achieved.

■低温度沸点燃料とディーゼル燃料とを混合すれば、低
温度沸点燃料であるため、気泡が生じ易いが、燃料噴射
ポンプの燃料吸入口が低沸点燃料の蒸気圧より常Ｂｖａ
圧としているため、燃料噴射ポンプから噴射ノズルにか
けての燃料通路に気泡が生じることがなく、したがって
、ノズルから燃料切れなく、安定した噴射が行われる。■If you mix low-temperature boiling point fuel and diesel fuel, bubbles will easily form because they are low-temperature boiling point fuels, but the fuel inlet of the fuel injection pump will always have a Bva higher than the vapor pressure of the low-boiling point fuel.
Since the pressure is maintained, bubbles do not form in the fuel passage from the fuel injection pump to the injection nozzle, and therefore, stable injection is performed without running out of fuel from the nozzle.

■液相状態の低温度沸点燃料が噴霧される機関シリンダ
燃焼室に、点火栓又はグロープラグ等の加熱手段を配設
することにより、低温度沸点燃料の気化速度を増大させ
着火遅れ防止によるディーゼルノックの発生をなくすこ
とができる。■By installing a heating means such as a spark plug or glow plug in the combustion chamber of the engine cylinder where the low-temperature boiling point fuel in the liquid phase is sprayed, the vaporization rate of the low-temperature boiling point fuel is increased and the ignition delay is prevented. It is possible to eliminate the occurrence of knocking.

■液相状態の低温度沸点燃料とディーゼル燃料を可変混
合手段で混合することにより、低温度沸点の液相状燃料
の看Ｘか困難であっても、ディーゼル燃料を最先に着火
させることにより、始動性を良好にすることができる。■ By mixing low-temperature boiling point fuel in liquid phase with diesel fuel using a variable mixing means, diesel fuel can be ignited first even if it is difficult to use low-temperature boiling point liquid phase fuel. , it is possible to improve starting performance.

■価格が安価な、又は余剰きみの低温度沸点石油液相状
燃料（ナフサ）をディーゼル燃料と混合した燃料とする
ので、安価な機関運転ができる。■ Low-temperature boiling point petroleum liquid phase fuel (naphtha), which is inexpensive or available in surplus, is used as a fuel mixed with diesel fuel, so the engine can be operated at a low cost.

■液相の燃料を噴射ノズルでシリンダ内に供給するので
、通常のディーゼル機関と同様、高圧縮が可能となり、
高出力とすることができる。■As liquid phase fuel is supplied into the cylinder through an injection nozzle, high compression is possible, just like in a normal diesel engine.
It can have high output.

■通常のディーゼル機関を特に改造することなく、ブレ
ンダー装置、点火装置（いずれもディーゼル機関の他の
目１（Ｕで慣らされた技術）を転用し付加しているので
、限存の機関にも容易に用いることができる。■The blender device and ignition device (both of which are the other features of the diesel engine (techniques used in the U) are repurposed and added without any special modifications to the normal diesel engine, so it can be used even in limited engines. Easy to use.

■なお、本ディーゼル機関を発電機直結型の回転数出力
ともに変動しない原動源とすれは、異常燃焼などに完全
に避けることができる。■In addition, if this diesel engine is a power source that is directly connected to a generator and does not fluctuate in rotational speed and output, abnormal combustion can be completely avoided.

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

第１図は本発明の第１の実施例の系統図、第２図は他の
実施例の系統図、第３図はブレンデング・システム系統
図を示す。 １・・・シリンダ、７・・・噴射ノズル、８・・・クロ
ーブラグ、１０・・・Ｌ　ｌ）　Ｇタンク、１１・・・
テイーゼル浦タンク、１７・・・噴射ポンプ 代理人　弁理士　岡　部　吉　彦FIG. 1 shows a system diagram of a first embodiment of the present invention, FIG. 2 shows a system diagram of another embodiment, and FIG. 3 shows a blending system system diagram. 1...Cylinder, 7...Injection nozzle, 8...Claw lug, 10...L l) G tank, 11...
Teiselura Tank, 17... Injection pump agent Patent attorney Yoshihiko Okabe

Claims (1)

【特許請求の範囲】 （１１Ｌ　Ｐ　Ｇ　、アルコール、ナフサ等の低温度沸
点燃料とディーゼル燃料とを可変混合手段で混合し、該
混合燃料の蒸気圧より高圧に維持する手段でもって燃料
タンクから液相状態のまま燃料噴射ポンプに供給するよ
うにし、該混合燃料を燃料噴射ノズルから圧縮行程終了
時期の機関シリンダー内に直接噴射するようにした低温
度沸点燃料ディーゼル機関 （２）液相状態の低温度沸点燃料が気化する機関シリン
ダー内燃焼室に、点火栓又はグロープラグ等の加熱手段
を配設した特許請求の範囲第１項記載の低温度沸点燃料
ディーゼル機関。[Scope of Claims] (11L P G , alcohol, naphtha, or other low-temperature boiling point fuel is mixed with diesel fuel using variable mixing means, and liquid is removed from the fuel tank by means of maintaining the pressure higher than the vapor pressure of the mixed fuel. A low-temperature boiling point fuel diesel engine (2) in which the mixed fuel is supplied to a fuel injection pump in a liquid phase state, and the mixed fuel is directly injected from a fuel injection nozzle into an engine cylinder at the end of the compression stroke. A low temperature boiling point fuel diesel engine according to claim 1, wherein a heating means such as a spark plug or a glow plug is provided in a combustion chamber in an engine cylinder where the temperature boiling point fuel is vaporized.
JP58037063A 1983-03-07 1983-03-07 Diesel engine by fuel of low temperature boiling point Granted JPS59162337A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP58037063A JPS59162337A (en) 1983-03-07 1983-03-07 Diesel engine by fuel of low temperature boiling point

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58037063A JPS59162337A (en) 1983-03-07 1983-03-07 Diesel engine by fuel of low temperature boiling point

Publications (2)

Publication Number Publication Date
JPS59162337A true JPS59162337A (en) 1984-09-13
JPH024773B2 JPH024773B2 (en) 1990-01-30

Family

ID=12487092

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58037063A Granted JPS59162337A (en) 1983-03-07 1983-03-07 Diesel engine by fuel of low temperature boiling point

Country Status (1)

Country Link
JP (1) JPS59162337A (en)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62121854A (en) * 1985-11-20 1987-06-03 Mitsui Eng & Shipbuild Co Ltd Fuel for dual-fuel diesel engine
JPH03189361A (en) * 1989-12-18 1991-08-19 Kenichiro Kameo Exhaust gas purifying system for diesel engine
EP1781926A2 (en) * 2004-05-07 2007-05-09 Statoil ASA Gas engine
DE102007051677A1 (en) 2007-10-26 2009-04-30 Karlheinrich Winkelmann Fuel e.g. petrol, mixture controlled production and conveying method for e.g. Otto-engine, involves supplying fuel mixture in fuel mixture tank into high pressure fuel device, pressure rail, fuel injection valve, fuel loop and control unit
EP2069627A1 (en) * 2006-09-25 2009-06-17 DGC Industries PTY LTD A dual fuel system
WO2009094996A2 (en) * 2008-01-30 2009-08-06 Evolv-Ram Gmbh Method and device for operating an internal combustion engine with a liquid fuel mixture
ITCE20100009A1 (en) * 2010-07-16 2012-01-17 Ottavio Pennacchia LPG-DIESEL MIXTURE SUPPLY PLANTS FOR DIESEL ENGINES FOR ROAD TRACTION, NAVAL PROPULSION OR ENERGY PRODUCTION
US20120145126A1 (en) * 2009-04-20 2012-06-14 Dgc Industries Pty Ltd Dual Fuel Supply System for an Indirect-Injection System of a Diesel Engine
NL2006542C2 (en) * 2011-04-05 2012-10-08 Vialle Alternative Fuel Systems Bv DIESEL ENGINE FOR LPG-DIESEL-MIXTURE.
US20130055987A1 (en) * 2011-09-02 2013-03-07 Man Diesel & Turbo Se Internal combustion reciprocating piston engine and method of operating the same
JP2013096251A (en) * 2011-10-28 2013-05-20 Isuzu Motors Ltd System for preventing abnormal combustion of diesel engine
JP2013096250A (en) * 2011-10-28 2013-05-20 Isuzu Motors Ltd System for preventing abnormal combustion of diesel engine
JP2013096248A (en) * 2011-10-28 2013-05-20 Isuzu Motors Ltd System for preventing abnormal combustion of diesel engine
WO2013087264A1 (en) * 2011-12-16 2013-06-20 Robert Bosch Gmbh Fuel system
EP2156043A4 (en) * 2007-05-23 2015-08-26 Interlocking Buildings Pty Ltd A method of manufacturing and installation of high pressure liquid lpg fuel supply and dual or mixed fuel supply systems
WO2015128130A1 (en) * 2014-02-26 2015-09-03 Robert Bosch Gmbh Injection system for injecting a fuel mixture and method therefor

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Publication number Priority date Publication date Assignee Title
JPS5142807A (en) * 1974-10-05 1976-04-12 Hino Motors Ltd CHOKUSETSUFUNSHASHIKIDEIIZERUKIKAN
JPS57144237U (en) * 1981-03-07 1982-09-10
JPS6023481U (en) * 1983-07-27 1985-02-18 株式会社小松製作所 dump truck

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5142807A (en) * 1974-10-05 1976-04-12 Hino Motors Ltd CHOKUSETSUFUNSHASHIKIDEIIZERUKIKAN
JPS57144237U (en) * 1981-03-07 1982-09-10
JPS6023481U (en) * 1983-07-27 1985-02-18 株式会社小松製作所 dump truck

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62121854A (en) * 1985-11-20 1987-06-03 Mitsui Eng & Shipbuild Co Ltd Fuel for dual-fuel diesel engine
JPH03189361A (en) * 1989-12-18 1991-08-19 Kenichiro Kameo Exhaust gas purifying system for diesel engine
EP1781926A2 (en) * 2004-05-07 2007-05-09 Statoil ASA Gas engine
US8220439B2 (en) 2006-09-25 2012-07-17 DGC Industries Pty. Ltd. Dual fuel system
EP2069627A1 (en) * 2006-09-25 2009-06-17 DGC Industries PTY LTD A dual fuel system
EP2069627A4 (en) * 2006-09-25 2009-10-21 Dgc Ind Pty Ltd A dual fuel system
EP2156043A4 (en) * 2007-05-23 2015-08-26 Interlocking Buildings Pty Ltd A method of manufacturing and installation of high pressure liquid lpg fuel supply and dual or mixed fuel supply systems
DE102007051677A1 (en) 2007-10-26 2009-04-30 Karlheinrich Winkelmann Fuel e.g. petrol, mixture controlled production and conveying method for e.g. Otto-engine, involves supplying fuel mixture in fuel mixture tank into high pressure fuel device, pressure rail, fuel injection valve, fuel loop and control unit
WO2009094996A3 (en) * 2008-01-30 2009-10-15 Evolv-Ram Gmbh Method and device for operating an internal combustion engine with a liquid fuel mixture
WO2009094996A2 (en) * 2008-01-30 2009-08-06 Evolv-Ram Gmbh Method and device for operating an internal combustion engine with a liquid fuel mixture
US20120145126A1 (en) * 2009-04-20 2012-06-14 Dgc Industries Pty Ltd Dual Fuel Supply System for an Indirect-Injection System of a Diesel Engine
US9765707B2 (en) * 2009-04-20 2017-09-19 Dgc Industries Pty Ltd Dual fuel supply system for an indirect-injection system of a diesel engine
ITCE20100009A1 (en) * 2010-07-16 2012-01-17 Ottavio Pennacchia LPG-DIESEL MIXTURE SUPPLY PLANTS FOR DIESEL ENGINES FOR ROAD TRACTION, NAVAL PROPULSION OR ENERGY PRODUCTION
WO2012138222A1 (en) * 2011-04-05 2012-10-11 Vialle Alternative Fuel Systems B.V. Diesel engine for a lpg-diesel mixture
US8905006B2 (en) 2011-04-05 2014-12-09 Vialle Alternative Fuel Systems B.V. Diesel engine for a LPG-diesel mixture
NL2006542C2 (en) * 2011-04-05 2012-10-08 Vialle Alternative Fuel Systems Bv DIESEL ENGINE FOR LPG-DIESEL-MIXTURE.
AT511872A1 (en) * 2011-09-02 2013-03-15 Man Diesel & Turbo Se Reciprocating internal combustion engine and method for operating a reciprocating internal combustion engine
CN102979634A (en) * 2011-09-02 2013-03-20 曼柴油机和涡轮机欧洲股份公司 Internal combustion reciprocating piston engine and method of operating the same
US20130055987A1 (en) * 2011-09-02 2013-03-07 Man Diesel & Turbo Se Internal combustion reciprocating piston engine and method of operating the same
JP2013096251A (en) * 2011-10-28 2013-05-20 Isuzu Motors Ltd System for preventing abnormal combustion of diesel engine
JP2013096250A (en) * 2011-10-28 2013-05-20 Isuzu Motors Ltd System for preventing abnormal combustion of diesel engine
JP2013096248A (en) * 2011-10-28 2013-05-20 Isuzu Motors Ltd System for preventing abnormal combustion of diesel engine
WO2013087264A1 (en) * 2011-12-16 2013-06-20 Robert Bosch Gmbh Fuel system
WO2015128130A1 (en) * 2014-02-26 2015-09-03 Robert Bosch Gmbh Injection system for injecting a fuel mixture and method therefor

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