JPH02552B2 - - Google Patents
Info
- Publication number
- JPH02552B2 JPH02552B2 JP55085625A JP8562580A JPH02552B2 JP H02552 B2 JPH02552 B2 JP H02552B2 JP 55085625 A JP55085625 A JP 55085625A JP 8562580 A JP8562580 A JP 8562580A JP H02552 B2 JPH02552 B2 JP H02552B2
- Authority
- JP
- Japan
- Prior art keywords
- fuel injection
- fuel
- mixing chamber
- air
- bench lily
- 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
Links
- 239000000446 fuel Substances 0.000 claims description 39
- 238000002347 injection Methods 0.000 claims description 29
- 239000007924 injection Substances 0.000 claims description 29
- 241000234435 Lilium Species 0.000 claims description 15
- 239000000203 mixture Substances 0.000 claims description 4
- 238000002485 combustion reaction Methods 0.000 claims description 2
- 238000000889 atomisation Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 230000008901 benefit Effects 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007634 remodeling Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Landscapes
- Fuel-Injection Apparatus (AREA)
Description
【発明の詳細な説明】
従来の電子制御燃料噴射装置は、エンジンに吸
入される空気量を測定し、該空気量に対する最適
の空燃比になるように予め所定圧力に調整された
燃料を噴射弁からエンジンの各気筒の吸気ポート
に噴射している。しかし各気筒に噴射弁が設られ
ているため高価になるので、該噴射弁を減らすこ
とが大きな課題になつている。DETAILED DESCRIPTION OF THE INVENTION A conventional electronically controlled fuel injection device measures the amount of air taken into an engine, and injects fuel that has been adjusted to a predetermined pressure in advance to achieve the optimum air-fuel ratio for the amount of air into the injection valve. The fuel is injected into the intake ports of each cylinder of the engine. However, since each cylinder is provided with an injection valve, it is expensive, and reducing the number of injection valves has become a major issue.
本発明は、上記のように噴射弁の数を減らして
安価にするとともに、混合気の霧化性能を改良し
て出力増加と運転性の向上を目的としたもので、
本発明によれば、少くとも１つの補助ベンチユリ
と、該補助ベンチユリに開口する燃料噴射口と、
該燃料噴射口に連通する空気通路の中間位置に設
けた混合室と、該混合室内に燃料を噴射する燃料
噴射弁とを単一の組立体として構成し；該組立体
を絞り弁を有する空気吸入管の側壁から突出して
設けた、電子制御燃料噴射装置付内燃機関の混合
気供給装置が提供される。 The present invention aims to reduce the number of injection valves to reduce the cost as described above, and to improve the atomization performance of the air-fuel mixture to increase output and improve drivability.
According to the present invention, at least one auxiliary bench lily, a fuel injection port opening in the auxiliary bench lily,
A mixing chamber provided at an intermediate position of an air passage communicating with the fuel injection port and a fuel injection valve for injecting fuel into the mixing chamber are configured as a single assembly; A mixture supply device for an internal combustion engine with an electronically controlled fuel injection device is provided, the device protruding from a side wall of an intake pipe.
燃料は補助ベンチユリに開口する燃料噴射口に
連通する空気通路の中間位置に設けた混合室内に
噴射されるから、燃料の霧化は充分に行われ、出
力の増加と運転性の向上が達成される。さらに、
これら補助ベンチユリと、燃料噴射口と、空気通
路と、混合室と、燃料噴射弁とが単一の組立体と
して構成されており、該組立体が絞り弁を有する
空気吸入管の側壁から突出して設けられているか
ら、組立体を単体として組立、調整、試験、空気
吸入管への取付などを行うことが可能であり、ざ
らに、既存の空気吸入管への取付も著しく容易で
あるから、改造などの場合にも応用することがで
きる。第１〜３図により本発明の一実施例の構造
および作用効果を説明すると、つぎのとおりであ
る。 Since the fuel is injected into the mixing chamber located in the middle of the air passage that communicates with the fuel injection port opening in the auxiliary bench lily, sufficient atomization of the fuel is achieved, resulting in increased output and improved drivability. Ru. moreover,
The auxiliary bench lily, the fuel injection port, the air passage, the mixing chamber, and the fuel injection valve are constructed as a single assembly, and the assembly projects from the side wall of the air intake pipe having the throttle valve. Because it is provided, it is possible to assemble, adjust, test, and install the assembly as a single unit to the air intake pipe, and it is also extremely easy to install it to the existing air intake pipe. It can also be applied in cases such as remodeling. The structure and effects of one embodiment of the present invention will be explained below with reference to FIGS. 1 to 3.
吸気系に絞り弁を有するエンジンにおいて、ベ
ンチユリ２上流部の空気吸入筒３内に設けた補助
ベンチユリ４と該補助ベンチユリ４に開口させた
燃料噴射口５を有する燃料噴射弁６および混合室
７と該室７をベンチユリ４の上方吸入空気に連通
させる吸気通路８を設けた構造であつて、９は燃
料噴射弁６の針弁、１０はノズル孔、１１は燃料
噴射弁６内のスプリング、１２は該弁６取付用Ｏ
リングを示す。本発明の重要な特徴として、これ
ら補助ベンチユリ４、燃料噴射口５、燃料噴射弁
６、混合室７、吸気通路８、が一体の組立体を構
成して空気吸入筒３の側壁に固定されている点が
ある。 In an engine having a throttle valve in the intake system, an auxiliary bench lily 4 provided in an air intake cylinder 3 upstream of a bench lily 2, a fuel injection valve 6 having a fuel injection port 5 opened in the auxiliary bench lily 4, and a mixing chamber 7. The structure includes an intake passage 8 that communicates the chamber 7 with the upper intake air of the bench lily 4, in which 9 is a needle valve of the fuel injection valve 6, 10 is a nozzle hole, 11 is a spring inside the fuel injection valve 6, and 12 is O for installing the valve 6.
Showing the ring. An important feature of the present invention is that the auxiliary bench lily 4, the fuel injection port 5, the fuel injection valve 6, the mixing chamber 7, and the intake passage 8 constitute an integrated assembly and are fixed to the side wall of the air intake cylinder 3. There is a point.
つぎに作用効果を記す。まず燃料噴射弁６の針
弁９を開くと、ノズル孔１０から混合室７内に燃
料が噴射される。補助ベンチユリ４内の空気流速
が早いため、燃料噴射口５に負圧を生じ、吸入通
路８から混合室７内に空気が吸入される。従つて
混合室７内では燃料と空気がよく混合し、かつ霧
化が促進され（一次混合〔霧化〕）、燃料噴射口５
から補助ベンチユリ４内に高速度で噴射される
（二次混合〔霧化〕）。該燃料はベンチユリ２内で
さらに加速され、急速に図示してない気筒内に到
達するため、上記、一次、二次混合の効果で燃料
の霧化、安定化がはかれるとともに混合気が均一
となつて、各気筒に平均的に供給される。よつて
燃料噴射弁の数を少なくすることができる。（こ
の種に近いものは、従来公知であるが、部品の配
置位置、性能等の点から、本発明のごとき顕著な
効果を奏しなかつた。）
また急加速時の追随性向上、燃料供給を止めた
場合に混合室７内に燃料が残らない等利点をも合
せ有する。 Next, the effects are described. First, when the needle valve 9 of the fuel injection valve 6 is opened, fuel is injected into the mixing chamber 7 from the nozzle hole 10. Since the air flow rate inside the auxiliary bench lily 4 is high, a negative pressure is generated at the fuel injection port 5, and air is sucked into the mixing chamber 7 from the suction passage 8. Therefore, the fuel and air are well mixed in the mixing chamber 7, and atomization is promoted (primary mixing [atomization]).
and is injected at high speed into the auxiliary bench lily 4 (secondary mixing [atomization]). The fuel is further accelerated in the bench lily 2 and quickly reaches the cylinder (not shown), so that the above-mentioned primary and secondary mixing effects atomize and stabilize the fuel and make the mixture uniform. and is supplied to each cylinder on average. Therefore, the number of fuel injection valves can be reduced. (Although devices similar to this type have been known in the past, they have not achieved the remarkable effects of the present invention in terms of component placement, performance, etc.) Additionally, they have improved followability during sudden acceleration and improved fuel supply. It also has the advantage that no fuel remains in the mixing chamber 7 when it is stopped.
なお、第４，５図は、上記混合室７から放射状
に燃料噴射口５を設けた別の一実施例図で、図中
の符号は第１〜３図に示した実施例の場合と同じ
であり、作用効果も変りない。 Furthermore, Figures 4 and 5 are diagrams of another embodiment in which fuel injection ports 5 are provided radially from the mixing chamber 7, and the reference numerals in the figures are the same as in the embodiment shown in Figures 1 to 3. Therefore, the action and effect remain the same.
よつて本発明は産業上、社会上、益するところ
大である。 Therefore, the present invention has great industrial and social benefits.
第１図は、空気吸入筒を含めた本発明の一実施
例の縦断面図、第２図イ図は、本発明の混合室付
近の縦断拡大図、同ロ図は、吸気通路の斜視図、
第３図は、第１図のＡ−Ａ断面図、第４図は、本
発明の別の一実施例の一部截断縦断面図、第５図
は、第４図のＢ−Ｂ断面図を示す。
なお、３……空気吸入筒、４……補助ベンチユ
リ、５……燃料噴射口、６……燃料噴射弁、７…
…混合室、８……吸気通路、９……針弁、１０…
…ノズル孔。
FIG. 1 is a vertical cross-sectional view of an embodiment of the present invention including an air intake pipe, FIG. 2 A is an enlarged vertical cross-sectional view of the vicinity of the mixing chamber of the present invention, and FIG. ,
3 is a cross-sectional view taken along the line A-A in FIG. 1, FIG. 4 is a partially cut-away vertical cross-sectional view of another embodiment of the present invention, and FIG. 5 is a cross-sectional view taken along the line B-B in FIG. 4. shows. In addition, 3... air intake cylinder, 4... auxiliary bench lily, 5... fuel injection port, 6... fuel injection valve, 7...
...mixing chamber, 8...intake passage, 9...needle valve, 10...
...Nozzle hole.
Claims (1)
ベンチユリに開口する燃料噴射口５と、該燃料噴
射口に連通する空気通路８の中間位置に設けた混
合室７と、該混合室内に燃料を噴射する燃料噴射
弁６とを単一の組立体として構成し、該組立体を
絞り弁１を有する空気吸入管の側壁から突出して
設けた、ことを特徴とする電子制御燃料噴射装置
付内燃機関の混合気供給装置。1 At least one auxiliary bench lily 4, a fuel injection port 5 opening to the auxiliary bench lily, a mixing chamber 7 provided at an intermediate position between the air passage 8 communicating with the fuel injection port, and fuel injected into the mixing chamber. An internal combustion engine with an electronically controlled fuel injection device, characterized in that the fuel injection valve 6 and the fuel injection valve 6 are constructed as a single assembly, and the assembly is provided protruding from a side wall of an air intake pipe having a throttle valve 1. Mixture supply device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8562580A JPS5710765A (en) | 1980-06-24 | 1980-06-24 | Mixed gas supply device for combustion engine equipped with electronically controlled injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8562580A JPS5710765A (en) | 1980-06-24 | 1980-06-24 | Mixed gas supply device for combustion engine equipped with electronically controlled injector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5710765A JPS5710765A (en) | 1982-01-20 |
| JPH02552B2 true JPH02552B2 (en) | 1990-01-08 |
Family
ID=13864013
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8562580A Granted JPS5710765A (en) | 1980-06-24 | 1980-06-24 | Mixed gas supply device for combustion engine equipped with electronically controlled injector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5710765A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6155913U (en) * | 1984-09-14 | 1986-04-15 | ||
| JPS61144268U (en) * | 1985-02-27 | 1986-09-05 |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53118628A (en) * | 1977-03-25 | 1978-10-17 | Nippon Carbureter | Carburetor |
| JPS559877B2 (en) * | 1975-10-29 | 1980-03-12 | ||
| JPS569653A (en) * | 1979-07-06 | 1981-01-31 | Honda Motor Co Ltd | Fuel feeder for engine |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS559877U (en) * | 1978-07-07 | 1980-01-22 |
-
1980
- 1980-06-24 JP JP8562580A patent/JPS5710765A/en active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS559877B2 (en) * | 1975-10-29 | 1980-03-12 | ||
| JPS53118628A (en) * | 1977-03-25 | 1978-10-17 | Nippon Carbureter | Carburetor |
| JPS569653A (en) * | 1979-07-06 | 1981-01-31 | Honda Motor Co Ltd | Fuel feeder for engine |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5710765A (en) | 1982-01-20 |
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