JPS61108859U - - Google Patents
Info
- Publication number
- JPS61108859U JPS61108859U JP19298284U JP19298284U JPS61108859U JP S61108859 U JPS61108859 U JP S61108859U JP 19298284 U JP19298284 U JP 19298284U JP 19298284 U JP19298284 U JP 19298284U JP S61108859 U JPS61108859 U JP S61108859U
- Authority
- JP
- Japan
- Prior art keywords
- intake
- throttle valve
- passage
- upstream
- valve
- 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
- 239000000446 fuel Substances 0.000 claims description 4
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 238000011144 upstream manufacturing Methods 0.000 claims 4
- 238000002485 combustion reaction Methods 0.000 claims 1
- 238000005259 measurement Methods 0.000 description 4
Landscapes
- Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
Description
第１図は本考案の一実施例を示す縦断面図、第
２図は第１図のＡ―Ａ断面図、第３図Ａは同上実
施例における吸気流量計測特性を示すグラフ、第
３図Ｂは同じく排気中に占めるＣＯ＋ＣＯ２＋Ｈ
Ｃ濃度の測定結果を示すグラフ、第４図は従来の
混合気供給装置を示す縦断面図、第５図Ａは同上
装置における吸気流量計測特性を示すグラフ、第
５図Ｂは同じく排気中に占めるＣＯ＋ＣＯ２＋Ｈ
Ｃ濃度の測定結果を示すグラフである。
１……吸気通路、２……吸気絞り弁、４……燃
料噴射弁、４ａ……噴孔、６……分流通路、７…
…熱線式流量計、８……スロツトルシヤフト、２
１……バイパス通路、２１ａ……開口。
FIG. 1 is a longitudinal sectional view showing an embodiment of the present invention, FIG. 2 is a sectional view taken along line A-A in FIG. 1, and FIG. B is CO+CO 2 +H that also occupies the exhaust gas
A graph showing the measurement results of the C concentration, Fig. 4 is a vertical cross-sectional view showing a conventional air-fuel mixture supply device, Fig. 5 A is a graph showing the intake flow rate measurement characteristics of the same device, and Fig. 5 B is a graph showing the measurement characteristics of the intake flow rate in the same device. Occupies CO + CO 2 + H
It is a graph showing the measurement results of C concentration. 1...Intake passage, 2...Intake throttle valve, 4...Fuel injection valve, 4a...Nozzle hole, 6...Diversion passage, 7...
...Hot wire flow meter, 8...Throttle shaft, 2
1... Bypass passage, 21a... Opening.
Claims (1)
式の吸気絞り弁上流に燃料噴射弁を有し、前記絞
り弁上流近傍にその下流端が開口する吸気分流通
路を設けると共に、該分流通路を通過する空気流
量を計測する装置を設けた混合気供給装置におい
て、 機関アイドリング運転時に前記吸気絞り弁をバ
イパスして吸気を供給するバイパス通路の吸気絞
り弁上流側開口を、前記スロツトルシヤフト端部
の吸気上流であつて前記吸気絞り弁と前記燃料噴
射弁の噴孔との間の位置の吸気通路壁に設けたこ
とを特徴とする内燃機関の混合気供給装置。[Scope of Claim for Utility Model Registration] A butterfly-type intake throttle valve whose rotation axis is a throttle shaft has a fuel injection valve upstream thereof, and an intake distribution passage whose downstream end is open near the upstream side of the throttle valve is provided. In addition, in the mixture supply device equipped with a device for measuring the air flow rate passing through the branch passage, an opening on the upstream side of the intake throttle valve of the bypass passage that bypasses the intake throttle valve and supplies intake air during engine idling operation is provided. . A mixture supply device for an internal combustion engine, characterized in that it is provided on an intake passage wall at a position upstream of the intake of the end of the throttle shaft and between the intake throttle valve and the nozzle hole of the fuel injection valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19298284U JPS61108859U (en) | 1984-12-21 | 1984-12-21 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19298284U JPS61108859U (en) | 1984-12-21 | 1984-12-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61108859U true JPS61108859U (en) | 1986-07-10 |
Family
ID=30750399
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19298284U Pending JPS61108859U (en) | 1984-12-21 | 1984-12-21 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61108859U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02245451A (en) * | 1989-03-17 | 1990-10-01 | Hitachi Ltd | Throttle device |
-
1984
- 1984-12-21 JP JP19298284U patent/JPS61108859U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02245451A (en) * | 1989-03-17 | 1990-10-01 | Hitachi Ltd | Throttle device |
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