JP2002349372A - Combustion method for diesel engine - Google Patents
Combustion method for diesel engineInfo
- Publication number
- JP2002349372A JP2002349372A JP2001200032A JP2001200032A JP2002349372A JP 2002349372 A JP2002349372 A JP 2002349372A JP 2001200032 A JP2001200032 A JP 2001200032A JP 2001200032 A JP2001200032 A JP 2001200032A JP 2002349372 A JP2002349372 A JP 2002349372A
- Authority
- JP
- Japan
- Prior art keywords
- fuel
- diesel engine
- combustion
- injection nozzle
- 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.)
- Pending
Links
Landscapes
- Output Control And Ontrol Of Special Type Engine (AREA)
Abstract
Description
【０００１】[0001]
【発明が属する技術分野】本発明はディーゼルエンジン
の燃焼方法に係わり、特にエンジンから燃料タンクに送
られるリターン燃料を閉鎖することによりエンジンに供
給された軽油燃料が完全燃焼し易い燃料に変換するディ
ーゼルエンジンの燃焼方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a diesel engine combustion method, and more particularly to a diesel engine in which light oil fuel supplied to an engine is converted into a fuel easily burnable by closing return fuel sent from the engine to a fuel tank. The present invention relates to an engine combustion method.
【０００２】[0002]
【従来の技術及び発明の解決すべき課題】ディーゼルエ
ンジンの燃費向上および排気ガス中の有害成分低下を目
的として、従来燃焼システムやエンジンのシリンダーま
わりの構造自体の改善、又は排ガスの触媒処理等の方策
が試みられているが、いずれもエンジン製作コストの増
大や改善効率の点に問題があり実用的に充分な解決を与
えるものではなかった。2. Description of the Related Art For the purpose of improving fuel efficiency and reducing harmful components in exhaust gas of a diesel engine, the conventional combustion system and the structure itself around the cylinder of the engine have been improved, or the exhaust gas has been catalyzed. Although some measures have been tried, none of them has a problem in terms of increase in engine production cost and improvement efficiency, and has not been able to provide a practically sufficient solution.
【０００３】これらディーゼルエンジンの燃焼室に供給
される軽油燃料を一部気体燃料として燃焼させるために
完全燃焼となり燃費の向上、及び排ガス中の有害成分減
少を図る燃焼方法を提供することが本発明の課題であ
る。[0003] It is an object of the present invention to provide a combustion method in which light oil fuel supplied to the combustion chambers of these diesel engines is partially burned as gaseous fuel, resulting in complete combustion, thereby improving fuel efficiency and reducing harmful components in exhaust gas. It is an issue of.
【０００４】軽油燃料タンクからエンジンまでの配管中
で軽油燃料を加熱した燃焼方法が研究されているが、軽
油燃料が膨脹してエンジンに必要な燃料が安定して供給
されないためエンジンの馬力が不足するために燃費が悪
くなり排気ガスも増大した。[0004] A combustion method in which light oil fuel is heated in a pipe from a light oil fuel tank to an engine has been studied, but the horsepower of the engine is insufficient because the light oil fuel expands and the necessary fuel for the engine is not supplied stably. As a result, fuel efficiency deteriorated and exhaust gas increased.
【０００５】本発明者はディーゼルエンジンの軽油燃料
が燃焼室に入る時点で加熱され一部気体軽油燃料として
燃焼させるために燃焼効率が改善され、馬力特に燃費が
著しく向上されると共に、排ガス中のＨＣ、ＣＯ２等有
害成分が低下することを発見して本発明を完成するに至
った。The inventor of the present invention has found that the combustion efficiency is improved because the diesel fuel of a diesel engine is heated at the point when it enters the combustion chamber and partially burns as gaseous diesel fuel, so that the horsepower, especially fuel efficiency, is significantly improved, and the exhaust gas The inventors have found that harmful components such as HC and CO 2 are reduced, and have completed the present invention.
【０００６】[0006]
【課題を解決するための手段】前記本願発明の課題はデ
ィーゼルエンジンの燃焼方法において、リターン燃料を
閉鎖することにより噴射ノズルはエンジンの燃焼熱で自
然と高温に加熱される。噴射ノズルを通過する液体軽油
燃料は、高温に加熱された噴射ノズルの熱で一部気体軽
油燃料となりエンジンの燃焼室で瞬時に完全燃焼するこ
とを特徴とする燃焼方法によって解決される。SUMMARY OF THE INVENTION An object of the present invention is to provide a method for burning a diesel engine, in which the injection nozzle is naturally heated to a high temperature by the combustion heat of the engine by closing the return fuel. The liquid gas oil fuel that passes through the injection nozzle is partially solved by the heat of the injection nozzle heated to a high temperature, becomes a gas gas oil fuel, and is completely instantaneously burned in the combustion chamber of the engine.
【０００７】後述する実施例に示すように、リターン燃
料を閉鎖することにより走行距離（ｋｍ／Ｌ）は驚くべ
き改善効果を示しており、燃費の著しい向上が認められ
ると共に、燃料の完全燃焼により排ガス濃度が著しく低
下し、燃料の供給、エンジンの燃焼及び安全性等につい
ては何等の支障もみられなかった。[0007] As shown in the embodiments described below, the mileage (km / L) shows a remarkable improvement effect by closing the return fuel, and a remarkable improvement in fuel economy is recognized. The exhaust gas concentration was remarkably reduced, and there was no problem with fuel supply, engine combustion, safety, and the like.
【０００８】本発明において液体軽油燃料のみでは顕著
な燃焼改善効果は明らかではなかったが、気体軽油燃料
と液体軽油燃料をミックスした状態では完全燃焼となる
ため、燃費の向上及び排ガス濃度の低下が可能となっ
た。[0008] In the present invention, a remarkable combustion improvement effect was not evident only with liquid gas oil fuel, but complete combustion occurs in a state where gas gas oil fuel and liquid gas oil fuel are mixed, so that fuel efficiency is improved and exhaust gas concentration is reduced. It has become possible.
【０００９】本発明において、液体軽油燃料と気体軽油
燃料をミックスして使用するため、ＨＣやＣＯが著しく
軽減され燃費も大幅に向上するものと考えられる。In the present invention, since a mixture of liquid gas oil fuel and gas gas oil fuel is used, it is considered that HC and CO are remarkably reduced and fuel efficiency is greatly improved.
【００１０】[0010]
【実施例】図１は本発明を適用したディーゼルエンジン
における燃料供給系統の概要を示す説明図である。図示
の通常のディーゼルエンジンにおける燃料供給系統にお
いて、噴射ポンプ４からエンジンの燃焼熱で加熱された
噴射ノズル６を経由してエンジンの燃焼室に入る時点で
軽油燃料が気体燃料と液体燃料にミックスされた状態と
なり、減圧下に気化および空気と混合されて所定の空／
燃比の混合気となり、燃焼用シリンダーに供給されて爆
発燃焼に用いられる。FIG. 1 is an explanatory view showing an outline of a fuel supply system in a diesel engine to which the present invention is applied. In the fuel supply system of the normal diesel engine shown in the drawing, light oil fuel is mixed into gaseous fuel and liquid fuel at the time when the fuel enters the combustion chamber of the engine from the injection pump 4 via the injection nozzle 6 heated by the combustion heat of the engine. And is mixed with air under reduced pressure to form a predetermined empty /
It becomes a fuel-fuel mixture and is supplied to a combustion cylinder for explosive combustion.
【００１１】通常のディーゼルエンジンでは燃料タンク
１から噴射ノズル６に送られた軽油燃料のうち、大半の
燃料はリターン燃料として再び燃料タンク１にリターン
燃料として戻される。リターン燃料が常に流れている状
態では噴射ノズルから噴射される軽油燃料は加熱されな
い。In a normal diesel engine, most of the light oil fuel sent from the fuel tank 1 to the injection nozzle 6 is returned to the fuel tank 1 as return fuel again as return fuel. When the return fuel is always flowing, the light oil fuel injected from the injection nozzle is not heated.
【００１２】本発明においては噴射ノズル６から燃料タ
ンク１に戻るリターン燃料をバルブ８で閉鎖すること
で、噴射ノズルが高温となり液体と気体とがミックスさ
れた状態の軽油を噴射することが実用上好ましい。In the present invention, by closing the return fuel returning from the injection nozzle 6 to the fuel tank 1 with the valve 8, it is practically possible to inject the light oil in which the temperature of the injection nozzle becomes high and the liquid and gas are mixed. preferable.
【００１３】[0013]
【試験例】図１に示す装置を用いて以下の条件下で通常
のディーゼルエンジン自動車とリターン燃料を閉鎖した
ディーゼルエンジン自動車を走行させて、軽油燃料の消
費量を測定した。結果を表１に示す。 試験条件 車種 ：トヨタタウンエース 排気量 ：２０００ｃｃディーゼルエンジン 試験日 ：平成１３年５月１日Test Example Using a device shown in FIG. 1, a normal diesel engine vehicle and a diesel engine vehicle with return fuel closed were run under the following conditions, and the consumption of light oil fuel was measured. Table 1 shows the results. Test conditions Vehicle type: Toyota Town Ace Displacement: 2000cc diesel engine Test date: May 1, 2001
【００１４】[0014]
【表１】 [Table 1]
【００１５】[0015]
【表２】 [Table 2]
【００１６】[0016]
【表３】 [Table 3]
【００１７】[0017]
【発明の結果】本発明によれば軽油を燃料とする自動車
のエンジンにおける燃焼が改善され、馬力及び燃費を著
しく向上し、かつ排ガス中のＨＣ、ＣＯ２等の有害成分
の排出量も低減した。According to the present invention, combustion in an automobile engine using light oil as fuel is improved, horsepower and fuel consumption are remarkably improved, and emissions of harmful components such as HC and CO 2 in exhaust gas are reduced. .
【図１】本発明を既存の自動車の内燃機関に適用する際
の概要を示す説明図である。FIG. 1 is an explanatory diagram showing an outline when the present invention is applied to an internal combustion engine of an existing automobile.
１、燃料タンク ２、燃料
／水分離器 ３、燃料フィルター ４、噴射
ポンプ ５、リターン燃料管 ６、噴射
ノズル ７、液体と気体とがミックスされた軽油燃料 ８、リタ
ーン燃料調整バルブ1, fuel tank 2, fuel / water separator 3, fuel filter 4, injection pump 5, return fuel pipe 6, injection nozzle 7, light oil fuel mixed with liquid and gas 8, return fuel adjustment valve
Claims (1)
エンジンから燃料タンクに戻る燃料を完全に閉鎖して燃
焼させることを特徴とするディーゼルエンジンの燃焼方
法及び装置。1. A method and apparatus for burning a diesel engine, wherein the fuel returning from the engine to a fuel tank is completely closed and burned.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001200032A JP2002349372A (en) | 2001-05-29 | 2001-05-29 | Combustion method for diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001200032A JP2002349372A (en) | 2001-05-29 | 2001-05-29 | Combustion method for diesel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2002349372A true JP2002349372A (en) | 2002-12-04 |
Family
ID=19037227
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001200032A Pending JP2002349372A (en) | 2001-05-29 | 2001-05-29 | Combustion method for diesel engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2002349372A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100691426B1 (en) | 2005-04-13 | 2007-03-09 | 한국과학기술원 | Various 3-dimensional laser plane beam generator using an inverse conic prism |
-
2001
- 2001-05-29 JP JP2001200032A patent/JP2002349372A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100691426B1 (en) | 2005-04-13 | 2007-03-09 | 한국과학기술원 | Various 3-dimensional laser plane beam generator using an inverse conic prism |
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