JPH068729U - Low pollution diesel engine with glow plug for constant ignition - Google Patents
Low pollution diesel engine with glow plug for constant ignitionInfo
- Publication number
- JPH068729U JPH068729U JP4748192U JP4748192U JPH068729U JP H068729 U JPH068729 U JP H068729U JP 4748192 U JP4748192 U JP 4748192U JP 4748192 U JP4748192 U JP 4748192U JP H068729 U JPH068729 U JP H068729U
- Authority
- JP
- Japan
- Prior art keywords
- diesel engine
- glow plug
- ignition
- constant ignition
- low pollution
- 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
- Ignition Installations For Internal Combustion Engines (AREA)
- Combustion Methods Of Internal-Combustion Engines (AREA)
Abstract
(57)【要約】
【目的】 ディーゼルエンジンの排出するＮＯｘ（窒素
酸化物）を減少させる。
【構成】 ディーゼルエンジンの燃焼室Ａに常時点火の
グロープラグ４を備える。
(57) [Summary] [Purpose] To reduce NOx (nitrogen oxide) emitted from diesel engines. [Structure] A glow plug 4 for constant ignition is provided in a combustion chamber A of a diesel engine.
Description
【０００１】[0001]
本考案は、自動車および産業用に使用されているディーゼルエンジンに関する ものである。 The present invention relates to a diesel engine used for automobiles and industries.
【０００２】[0002]
従来、ディーゼルエンジンは圧縮比を２２前後にして燃焼室に取り入れた空気 を軽油の着火温度以上に上昇させ、軽油を燃焼室に噴射して燃焼し動力を得てい る。 Conventionally, a diesel engine has a compression ratio of around 22 and raises the air taken into the combustion chamber to a temperature above the ignition temperature of light oil, and injects the light oil into the combustion chamber for combustion to obtain power.
【０００３】[0003]
現在のディーゼルエンジンの排出するＮＯｘは、軽油燃焼時の温度と圧力が高 いためガソリンエンジンのそれより多く、大気汚染の原因であるとして社会問題 を引き起こしている。 本考案はこの問題点に鑑みてなされたものであり、その目的とするところは、 排出するＮＯｘが少ないディーゼルエンジンを提供しようとするものである。 The current NOx emitted from diesel engines is higher than that of gasoline engines due to the high temperature and pressure during light oil combustion, which causes social problems as a cause of air pollution. The present invention has been made in view of this problem, and an object thereof is to provide a diesel engine that emits less NOx.
【０００４】[0004]
上記目的を達成するために、本考案におけるディーゼルエンジンは従来エンジ ンの始動時のみ使用していたグロープラグを常時点火して軽油着火に必要な温度 を確保する一方、圧縮比を低くして軽油燃焼時の圧力を下げ、ＮＯｘの発生を抑 制しようとするものである。 In order to achieve the above object, the diesel engine of the present invention always ignites the glow plug that was used only when the engine was started to secure the temperature required for light oil ignition, while lowering the compression ratio to reduce diesel oil. It is intended to reduce the pressure during combustion to suppress the generation of NOx.
【０００５】[0005]
ディーゼルエンジンは圧縮比を高くして燃焼室に取り入れたの空気の温度を軽 油の着火温度以上に上げているが、本考案では燃焼室Ａに常時点火のグロープラ グ４を備えることにより圧縮比を低くしてもグロープラグ付近で軽油の着火温度 を確保でき、正常の燃焼を行なうことができる。 In the diesel engine, the compression ratio is increased to raise the temperature of the air taken into the combustion chamber to the ignition temperature of the diesel oil or higher. However, in the present invention, the combustion chamber A is provided with the glow plug 4 for constant ignition so that the compression ratio is increased. Even if the temperature is lowered, the ignition temperature of the light oil can be secured near the glow plug and normal combustion can be performed.
【０００６】[0006]
現在のディーゼルエンジンの圧縮比は２２前後であるが、燃焼室Ａに常時点火 のグロープラグ４を備え、圧縮比を１６にしたエンジンでは圧縮比２２のエンジ ンに比べてＮＯｘの発生が４０〜５０％減少する。 The current diesel engine has a compression ratio of around 22, but an engine with a constant ignition glow plug 4 in the combustion chamber A and a compression ratio of 16 produces 40 to 40% more NOx than an engine with a compression ratio of 22. 50% reduction.
【０００７】[0007]
本考案は、上述のようにディーゼルエンジンによるＮＯｘの発生を大幅に減少 させることができ、今日社会問題化している大気汚染の改善に貢献することがで きる。 The present invention can significantly reduce the generation of NOx by a diesel engine as described above, and can contribute to the improvement of air pollution, which is becoming a social problem today.
【０００８】 また、圧縮比を低くすることによりエンジンの高速回転が可能になり、重量も 軽くコンパクトにでき、コストダウンも達成できる。さらにディーゼルエンジン 特有のノッキング音も減少しスムースな回転が得られる。Further, by reducing the compression ratio, the engine can be rotated at high speed, the weight can be reduced, the size can be reduced, and the cost can be reduced. In addition, the knocking noise peculiar to diesel engines is reduced, and smooth rotation is obtained.
【図１】常時点火のグロープラグを備えた燃焼室の要部
断面図である。FIG. 1 is a sectional view of an essential part of a combustion chamber provided with a glow plug for constant ignition.
【符合の説明】 Ａ 燃焼室 １ シリンダーブロック ２ シリンダーヘッド ３ ピストン ４ グロープラグ ５ 噴射ノズル ６ 吸気弁 ７ 排気弁[Explanation of symbols] A Combustion chamber 1 Cylinder block 2 Cylinder head 3 Piston 4 Glow plug 5 Injection nozzle 6 Intake valve 7 Exhaust valve
Claims (1)
（４）を備えて軽油の着火温度を確保する一方、圧縮比
を低くして軽油燃焼時のＮＯｘ（窒素酸化物）の発生を
抑制するディーゼルエンジン。1. A glow plug (4) for constant ignition is provided in a combustion chamber (A) to secure an ignition temperature of light oil, while a compression ratio is lowered to prevent generation of NOx (nitrogen oxide) during light oil combustion. Diesel engine to suppress.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4748192U JPH068729U (en) | 1992-05-29 | 1992-05-29 | Low pollution diesel engine with glow plug for constant ignition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4748192U JPH068729U (en) | 1992-05-29 | 1992-05-29 | Low pollution diesel engine with glow plug for constant ignition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH068729U true JPH068729U (en) | 1994-02-04 |
Family
ID=12776326
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4748192U Pending JPH068729U (en) | 1992-05-29 | 1992-05-29 | Low pollution diesel engine with glow plug for constant ignition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH068729U (en) |
-
1992
- 1992-05-29 JP JP4748192U patent/JPH068729U/en active Pending
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