JPS6036722A - Air injection apparatus for diesel engine - Google Patents
Air injection apparatus for diesel engineInfo
- Publication number
- JPS6036722A JPS6036722A JP14499883A JP14499883A JPS6036722A JP S6036722 A JPS6036722 A JP S6036722A JP 14499883 A JP14499883 A JP 14499883A JP 14499883 A JP14499883 A JP 14499883A JP S6036722 A JPS6036722 A JP S6036722A
- Authority
- JP
- Japan
- Prior art keywords
- air
- piston
- combustion
- chamber
- air chamber
- 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
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
- F02B21/00—Engines characterised by air-storage chambers
- F02B21/02—Chamber shapes or constructions
-
- 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
- F02B3/00—Engines characterised by air compression and subsequent fuel addition
- F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Combustion Methods Of Internal-Combustion Engines (AREA)
Abstract
Description
【発明の詳細な説明】
本発明はディーゼル機関の空気噴射装置に関するもので
あり、更に醒−シ<はディーゼル機関の燃焼パターンを
良好にしてその機関の燃費を向−1−させる装置に関す
るものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an air injection device for a diesel engine, and more particularly to a device for improving the combustion pattern of a diesel engine and improving the fuel efficiency of the engine. be.
現状のディーゼル1瓜関の性能は燃焼面から見ると燃焼
期間の後半から末期にかけて燃焼速度が遅くなっている
。Looking at the performance of the current diesel engine 1, the combustion speed slows down from the latter half to the end of the combustion period.
これは燃焼性能から言って非常に好ましからざる欠点で
あり、この燃焼速度の低下は主として燃料噴射終了後の
燃焼域のガス運動の急速な減衰により燃料と周囲空気の
積極的な混合が行われ難くなることに起因しているもの
と考えられる。This is a very unfavorable drawback in terms of combustion performance, and the decrease in combustion rate is mainly due to the rapid attenuation of gas movement in the combustion zone after fuel injection ends, making it difficult to actively mix the fuel and surrounding air. This is thought to be due to the fact that
そごで、燃料噴射終了後も引き続いて活発なガス運動が
行われるように燃焼室内のガスを撹乱することはディー
セル機関の燃焼改善には有。Therefore, it is possible to improve combustion in diesel engines by disturbing the gas in the combustion chamber so that active gas movement continues even after fuel injection ends.
益と考えられる。It is considered a benefit.
そこで、本発明は前記従来のディーゼル機関の燃料と周
囲空気との混合を積極的に行なわせ(2)
ることにより、燃焼期間の後半ζこおける燃焼速度の低
士を解消し、ディーゼル機関の燃焼改善による燃費の面
子をはかることを目的としてなされたものである。Therefore, the present invention eliminates the low combustion rate in the latter half of the combustion period by actively mixing the fuel in the conventional diesel engine with the surrounding air (2), thereby improving the efficiency of the diesel engine. This was done with the aim of improving fuel efficiency by improving combustion.
すなわち、第1の発明のディーゼル機関の空気噴射装置
は、ディーゼル(基間の燃焼室と、上空気室及びト空気
室とがガス通路によりそれぞれ連通ずる空気室を設ける
と共に、該空気室を上空気室と上空気室とに仕切りなが
ら」二下に往復する空気室ピストンを設け、更に空気室
ピストンと一体に」二下に往復動し、かつ、適宜な押し
下げ力を有するばね機構で押圧されている駆動ピストン
を設けたことを特徴とする。That is, the air injection device for a diesel engine according to the first aspect of the present invention provides an air chamber in which a combustion chamber in a diesel engine, an upper air chamber, and a lower air chamber communicate with each other via a gas passage, and An air chamber piston is provided which reciprocates downwardly while partitioning the air chamber and an upper air chamber, and furthermore, the air chamber piston reciprocates downwardly integrally with the air chamber piston and is pressed by a spring mechanism having an appropriate downward force. It is characterized by being equipped with a driving piston.
第2の発明のディーゼル機関の空気噴射装置は、ディー
ゼル機関のシリンダカバーにガス通路により燃焼室と連
通ずる空気室を設け、該空気室にこの空気室と前記燃焼
室とを仕切りながら上下に往復する空気室ピストンを設
げ、更に空気室ピストンと一体に上下に往復動し、かつ
、適宜な押し下げ力を有するばね機構で押圧され(3)
ている駆動ピストンを設けたごとを特徴とする。An air injection device for a diesel engine according to a second aspect of the invention includes an air chamber that is provided in a cylinder cover of a diesel engine and communicates with a combustion chamber through a gas passage, and that reciprocates up and down while partitioning the air chamber and the combustion chamber. The present invention is characterized in that it is provided with an air chamber piston that moves up and down integrally with the air chamber piston, and is further provided with a driving piston that is pressed by a spring mechanism having an appropriate pressing force (3).
以−ト、図面を参照して本発明の2つの実施例について
それぞれを説明する。Two embodiments of the present invention will now be described with reference to the drawings.
第1図は本発明の第1の実施例を示す要部縦断面図であ
り、燃焼室5はディーゼル機関のシリンダーカバー1、
シリンダーライナー2、ピストン3およびJ?A Il
ブ1′4により囲まれている。FIG. 1 is a longitudinal sectional view of a main part showing a first embodiment of the present invention, in which a combustion chamber 5 includes a cylinder cover 1 of a diesel engine,
Cylinder liner 2, piston 3 and J? A Il
1'4.
次に、空気噴射装置f?sは燃焼室5と2本のガス通路
6及び7でつ2<かっており、また、この空気噴射装置
8 LSIその最−1一部にばね機構9、中段に駆動ピ
ストン10、最下部に空気室11を有し°ζいる。Next, the air injection device f? s is connected to a combustion chamber 5 and two gas passages 6 and 7, and this air injection device 8 LSI has a spring mechanism 9 in the first part, a drive piston 10 in the middle, and an air injector in the bottom part. It has a chamber 11.
この空気室11(J駆動ピストン10と一体に上−1・
に往復動する空気室ピストン12により上空気室11A
と]空気室11Bとに仕切られ、上空気室11Aはガス
通路6を介し、そして上空気室11Bはガス通路7を介
してそれぞれ燃焼室5と連通しており、これら上空気室
11A、上空気室11B内のガス圧は燃焼室5内のガス
圧とほぼ等と7くなっている。This air chamber 11 (upper-1, integrally with the J drive piston 10)
The upper air chamber 11A is caused by the air chamber piston 12 reciprocating to
The upper air chamber 11A communicates with the combustion chamber 5 via the gas passage 6, and the upper air chamber 11B communicates with the combustion chamber 5 via the gas passage 7. The gas pressure in the air chamber 11B is approximately equal to the gas pressure in the combustion chamber 5, which is 7.
(4)
また、空気室ピストン12と一体に上下に往復動する駆
動ビスi・ン10の上部に連結された端板13は適宜な
押下げ力を有するばね機構9により下方に押圧されてい
る。このばね機構9む:l枠体19内に設置されており
、圧縮ばね9dを備えている。(4) Furthermore, the end plate 13 connected to the upper part of the drive screw 10 that reciprocates up and down together with the air chamber piston 12 is pressed downward by a spring mechanism 9 having an appropriate pressing force. . This spring mechanism 9 is installed within the frame 19 and includes a compression spring 9d.
」−記端板13と駆動ピストンlO及び空気室ピストン
12からなる一体往IM運動部は空気室ll内の圧力が
低い間は、上部のばね機構9により下方に押しつけられ
ており、この時点での」一方へのガス漏れに対するシー
ルは、駆動ピストン10の最下部と、シリンダー14の
着座面との間で行なわれており、そして、この時点での
駆動ピストン10のガス圧受圧部の直径はdである。The integral forward IM movement unit consisting of the end plate 13, the driving piston 1O, and the air chamber piston 12 is pressed downward by the upper spring mechanism 9 while the pressure in the air chamber 11 is low, and at this point A seal against gas leakage to one side is provided between the lowest part of the drive piston 10 and the seating surface of the cylinder 14, and the diameter of the gas pressure receiving part of the drive piston 10 at this point is It is d.
その後、燃焼室5内の圧力上昇と共に、上・上空気室1
1A、IIBのガス圧も上昇し、そのため、駆動ピスト
ン10を上方に押し上げる力が強(なる。After that, as the pressure inside the combustion chamber 5 increases, the upper air chamber 1
The gas pressures of 1A and IIB also rise, and therefore the force pushing up the drive piston 10 becomes strong.
この力がばね機構9の押圧力に打ち勝った段(5)
階で、駆動ピストン10が浮上し、その瞬間からガス圧
受圧面積がその断面全体となるため、ばね機構9の押圧
力をはるかに陵駕する上方への駆動力を受けるごとにな
り、駆動ピストンは急速に」二昇する。At step (5), when this force overcomes the pressing force of the spring mechanism 9, the driving piston 10 floats up, and from that moment on, the gas pressure receiving area becomes the entire cross section, so the pressing force of the spring mechanism 9 is far exceeded. Each time it receives an upward driving force, the driving piston rises rapidly.
この時、空気室ピストン12も一緒に上昇するから上空
気室11Aの空気はガス通路6を通って燃焼室5へ排出
され、この排出空気により燃焼室5内のガスが撹乱され
る。At this time, since the air chamber piston 12 also rises, the air in the upper air chamber 11A is discharged into the combustion chamber 5 through the gas passage 6, and the gas in the combustion chamber 5 is disturbed by this discharged air.
一方、上空気室1113へはガス通路7を通って燃焼室
5がら空気が吸入される。On the other hand, air is drawn into the upper air chamber 1113 from the combustion chamber 5 through the gas passage 7.
ここで、駆動ピストン10の上昇距離は駆動ピストン1
0のに端がシリンダー14の上部着座面に着座すること
により制限されると同時に、ガス漏れに対するシールは
着座後はこの部分においてなされる。Here, the rising distance of the driving piston 10 is the driving piston 1
The end of the cylinder 14 is restricted by seating on the upper seating surface of the cylinder 14, while a seal against gas leakage is provided in this area after seating.
時間の経過と共に、ディーゼル機関の燃焼室5内のガス
圧が低下すると、上・上空気室11A、IIBのガス圧
も低下し、駆動ピストンIOはばね機構9の押圧力に押
されて下方に移動(6)
し、シリンダー14の下部着座面に着座して最初の状態
に復帰する。As time passes, the gas pressure in the combustion chamber 5 of the diesel engine decreases, the gas pressure in the upper air chambers 11A and IIB also decreases, and the drive piston IO is pushed downward by the pressing force of the spring mechanism 9. (6) and is seated on the lower seating surface of the cylinder 14, returning to the initial state.
第2図は本発明の第2の実施例を示す要部婚断面図であ
り、第1の実施例と同し部品には同し符号を付した。FIG. 2 is a cross-sectional view of essential parts showing a second embodiment of the present invention, in which the same parts as in the first embodiment are given the same reference numerals.
この第2の実施例は上記空気噴射装置8をシリンダーカ
バー1内に設置した点に特徴がある。This second embodiment is characterized in that the air injection device 8 is installed inside the cylinder cover 1.
その他は第1の実施例と殆ど相違はない。In other respects, there is almost no difference from the first embodiment.
すなわち、空気噴射装置8はシリンダーカバー1内に設
置されており、その最上部にばね機構9、中段に駆動ピ
ストン10、最下部に空気室11を有している。That is, the air injection device 8 is installed in the cylinder cover 1, and has a spring mechanism 9 at the top, a drive piston 10 at the middle stage, and an air chamber 11 at the bottom.
この空気室11はシリンダーカバー1内に設けられてお
り、駆動ピストン10と一体に」二下に往復動する空気
室ピストン12により燃焼室5と仕切られている。そし
てガス通路6を介して燃焼室5内と連通しており、燃焼
室5内のガス圧とほぼ等しくなっている。This air chamber 11 is provided within the cylinder cover 1 and is partitioned from the combustion chamber 5 by an air chamber piston 12 that reciprocates downwardly together with the drive piston 10. It communicates with the inside of the combustion chamber 5 via the gas passage 6, and is approximately equal to the gas pressure inside the combustion chamber 5.
このガス通路6の先端部16は環状を成し、多数の開口
17を有している。また、この先端(7)
部16は燃料弁4と同心状に設置される。The tip 16 of the gas passage 6 is annular and has a large number of openings 17. Further, this tip (7) portion 16 is installed concentrically with the fuel valve 4.
また、上記駆動ピストン10はシリンダーカバー1内に
設けたシリンダー14内に設置される。Further, the driving piston 10 is installed within a cylinder 14 provided within the cylinder cover 1.
而して、端板13と駆動ピストン10及び空気室ピスト
ン12からなる一体往復運動部は空気室11内の圧力が
低い間は、上部のばね機構9により下方に押しつけられ
ており、この時点での上方へのガス漏れに対するシール
は、駆動ピストン10の最下部と、シリンダー14の着
座面との間で行なわれており、そして、この時点での駆
動ピストン10のガス圧受圧部の直径はdである。The integral reciprocating unit consisting of the end plate 13, drive piston 10, and air chamber piston 12 is pressed downward by the upper spring mechanism 9 while the pressure inside the air chamber 11 is low; A seal against upward gas leakage is provided between the lowest part of the drive piston 10 and the seating surface of the cylinder 14, and the diameter of the gas pressure receiving part of the drive piston 10 at this point is d. It is.
その後、燃焼室5内の圧力上昇と共に、空気室11のガ
ス圧も一ヒ昇し、そのため、駆動ピストンlOを上方に
押し上げる力が強くなる。Thereafter, as the pressure in the combustion chamber 5 rises, the gas pressure in the air chamber 11 also rises, and as a result, the force pushing the drive piston IO upward becomes stronger.
この力がばね機構9の押圧力に打ち勝った段階で、駆動
ピストン10が浮上し、その瞬間からガス圧受圧面積が
その断面全体となるため、ばね機構9の押圧力をはるか
に陵駕する上方へ(8)
の駆動力を受けることになり、急速に上昇する。At the stage when this force overcomes the pressing force of the spring mechanism 9, the driving piston 10 floats up, and from that moment on, the gas pressure receiving area becomes the entire cross section. It will receive the driving force of (8) and rise rapidly.
この時、空気室ピストン12も一緒に上昇するから空気
室11の空気はガス通路6を通って燃焼室5へ排出され
、この排出空気により燃焼室5内のガスが更に撹乱され
る。At this time, since the air chamber piston 12 also rises, the air in the air chamber 11 is discharged into the combustion chamber 5 through the gas passage 6, and the gas in the combustion chamber 5 is further disturbed by this discharged air.
ここで、駆動ピストン10の上昇距離は駆動ピストン1
0の上端がシリンダー14の上部着座面に着座すること
により制限されると同時に、ガス漏れに対するシールは
着座後はこの部分においてなされる。Here, the rising distance of the driving piston 10 is the driving piston 1
The upper end of the cylinder 14 is restricted by seating on the upper seating surface of the cylinder 14, while a seal against gas leakage is provided at this portion after seating.
時間の経過と共に、ディーゼル機関の燃焼室5内のガス
圧が低下すると、空気室11のガス圧も低下し、駆動ピ
ストン10はばね機構9の押圧力に押されて下方に移動
し、シリンダー14の下部着座面に着座して最初の状態
に復帰する。As time passes, as the gas pressure in the combustion chamber 5 of the diesel engine decreases, the gas pressure in the air chamber 11 also decreases, and the drive piston 10 is pushed by the pressing force of the spring mechanism 9 and moves downward, causing the cylinder 14 to move downward. The robot will sit on the lower seating surface of the machine and return to its initial state.
第1の方法及び第2の方法において、駆動ピストン10
トシリンダ−14の間には逆止弁を介して弱い油圧がか
かつており、両者の間の潤滑及び駆動ピストンが移動中
のガスシールはこ(9)
の油によって行われる。In the first method and the second method, the drive piston 10
A weak hydraulic pressure is maintained between the two cylinders 14 via a check valve, and the oil in this cylinder 9 provides lubrication between the two and seals the gas while the driving piston is moving.
上記ばね機構9としては第3図に示ずばね機構9を使用
することもできる。As the spring mechanism 9, a spring mechanism 9 not shown in FIG. 3 may also be used.
このばね機構9は枠体19内に設けた左右一対のリンク
9bの枢軸9Cにばね9dを架橋した構造であり、空気
噴射装置8の端板13が上昇した時に破線で示すように
リンク9bが屈曲すると共に、ばね9dが延びるように
なっている。This spring mechanism 9 has a structure in which a spring 9d is bridged with a pivot shaft 9C of a pair of left and right links 9b provided in a frame 19, and when the end plate 13 of the air injection device 8 is raised, the link 9b is moved as shown by the broken line. As it bends, the spring 9d extends.
上記のように、本発明はディーゼル機関に空気室11を
有する空気噴射装置8を設置し、この空気室11内に燃
焼室5内の圧力上昇時において圧縮空気を貯蔵し、燃焼
工程の後半において、その圧縮空気を燃焼室5内に噴出
するから燃焼工程の後半において燃焼室5内の空気と噴
霧燃料とを積極的に混合することができる。As described above, the present invention installs an air injection device 8 having an air chamber 11 in a diesel engine, stores compressed air in this air chamber 11 when the pressure in the combustion chamber 5 increases, and stores compressed air in the latter half of the combustion process. Since the compressed air is injected into the combustion chamber 5, the air in the combustion chamber 5 and the sprayed fuel can be actively mixed in the latter half of the combustion process.
その結果、短時間に燃焼が行われるので、そのディーゼ
ル機関の燃焼パターンは改善され、燃費が向上するよう
になる。As a result, combustion occurs in a short period of time, which improves the combustion pattern of the diesel engine and improves fuel efficiency.
(10)
第1図及び第2図は本発明に係るディーゼル1里関の空
気噴射装置の要部縦断面図、第3図はばね1幾構の他の
例を示す縦断面図である。
5 ・・燃焼室、6.7・・・ガス通路、8・・・空気
噴射装置、9・・・ばね機構、10・・駆動ピストン、
11・・・空気室、]、IA・・・上空気室、]、]、
B・・・上空気室、12・・・空気室ビスI−ン。
代理人 弁理士 小 川 信 −
弁理士 野 口 賢 照
弁理士 斉 下 和 彦
(1])(10) FIGS. 1 and 2 are longitudinal sectional views of essential parts of an air injection device for a diesel engine according to the present invention, and FIG. 3 is a longitudinal sectional view showing another example of the structure of the spring 1. 5... Combustion chamber, 6.7... Gas passage, 8... Air injection device, 9... Spring mechanism, 10... Drive piston,
11...Air chamber,], IA...Upper air chamber,], ],
B...Upper air chamber, 12...Air chamber screw I-n. Agent: Patent attorney Makoto Ogawa − Patent attorney: Ken Noguchi Patent attorney: Kazuhiko Saishita (1)
Claims (1)
とがガス3m路によりそれぞれ連通ずる空気室を設ける
と共に、該空気室を上空気室と下空気室とに仕切りなが
ら上下に往復する空気室ピストンを設け、更に空気室ピ
ストンと一体に上下に往復動し、かつ、適宜な押し下げ
力を有するばね機構で押圧されている駆動ピストンを設
けたディーゼル機関の空気噴射装置。 2、ディーゼル機関のシリンダカバーにガス通路により
燃焼室と連通ずる空気室を設け、該空気室にこの空気室
と前記燃焼室とを仕切りながら上下に往復する空気室ピ
ストンを設け、更に空気室ピストンと一体に上下に往復
動し、かつ、適宜な押し下げ力を有するばね機構で押圧
されている駆動ピストンを設けたディーゼル機関の空気
噴射装置。 (1)[Claims] 1. An air chamber is provided in which the combustion chamber of a diesel engine, an upper air chamber, and a lower air chamber communicate with each other through a 3 m gas path, and the air chamber is connected to the upper air chamber and the lower air chamber. Air injection for a diesel engine that is equipped with an air chamber piston that reciprocates up and down while partitioning, and a drive piston that reciprocates up and down together with the air chamber piston and is pressed by a spring mechanism with an appropriate downward force. Device. 2. An air chamber is provided in the cylinder cover of a diesel engine that communicates with the combustion chamber through a gas passage, and an air chamber piston that reciprocates up and down while partitioning this air chamber and the combustion chamber is provided in the air chamber, and the air chamber piston An air injection device for a diesel engine equipped with a driving piston that reciprocates up and down integrally with the engine and is pressed by a spring mechanism with an appropriate downward force. (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14499883A JPS6036722A (en) | 1983-08-10 | 1983-08-10 | Air injection apparatus for diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14499883A JPS6036722A (en) | 1983-08-10 | 1983-08-10 | Air injection apparatus for diesel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6036722A true JPS6036722A (en) | 1985-02-25 |
Family
ID=15375088
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14499883A Pending JPS6036722A (en) | 1983-08-10 | 1983-08-10 | Air injection apparatus for diesel engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6036722A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1988009430A1 (en) * | 1987-05-18 | 1988-12-01 | Takeshi Okuma | Combustion promoter for internal combustion engines |
| WO1990001620A1 (en) * | 1988-08-11 | 1990-02-22 | Takeshi Ohukuma | Combustion promoter operating unit |
-
1983
- 1983-08-10 JP JP14499883A patent/JPS6036722A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1988009430A1 (en) * | 1987-05-18 | 1988-12-01 | Takeshi Okuma | Combustion promoter for internal combustion engines |
| US5156685A (en) * | 1987-05-18 | 1992-10-20 | Takeshi Okuma | Combustion promoter for internal combustion engines |
| WO1990001620A1 (en) * | 1988-08-11 | 1990-02-22 | Takeshi Ohukuma | Combustion promoter operating unit |
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