JPS6322378U - - Google Patents
Info
- Publication number
- JPS6322378U JPS6322378U JP11586886U JP11586886U JPS6322378U JP S6322378 U JPS6322378 U JP S6322378U JP 11586886 U JP11586886 U JP 11586886U JP 11586886 U JP11586886 U JP 11586886U JP S6322378 U JPS6322378 U JP S6322378U
- Authority
- JP
- Japan
- Prior art keywords
- intake
- fuel
- valve
- pressure control
- pressure
- 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 15
- 238000002347 injection Methods 0.000 claims description 7
- 239000007924 injection Substances 0.000 claims description 7
- 238000011144 upstream manufacturing Methods 0.000 claims 3
- 230000007423 decrease Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Description
第１図はこの考案の電子制御式燃料噴射エンジ
ンの燃料圧力制御装置を示した全体の概要説明図
、第２図は吸気圧の動作説明図、第３図は従来例
を示した第１図と同様の概要説明図である。
主要な図面符号の説明 １…吸気通路、７…ス
ロツトル弁、９…燃料噴射弁、１１…開閉弁、２
７…圧力制御弁、３５…圧力室、４９…吸気圧制
御弁。
Fig. 1 is an overall schematic explanatory diagram showing the fuel pressure control device of the electronically controlled fuel injection engine of this invention, Fig. 2 is an explanatory diagram of the operation of intake pressure, and Fig. 3 is Fig. 1 showing a conventional example. It is a schematic explanatory diagram similar to . Explanation of main drawing symbols 1...Intake passage, 7...Throttle valve, 9...Fuel injection valve, 11...Opening/closing valve, 2
7...Pressure control valve, 35...Pressure chamber, 49...Intake pressure control valve.
Claims (1)
弁の上流側の吸気通路内に設けられ吸入空気流量
に応じて前記吸気通路の断面積を増減する開閉弁
と、吸気圧力に応じて燃料の戻し量を制御しなが
ら前記燃料噴射弁への燃料圧力を略一定に保つ圧
力制御弁とを備えてなる電子制御式燃料噴射エン
ジンの燃料圧力制御装置において、前記圧力制御
弁の圧力室側に、前記開閉体の上流側吸気圧力と
下流側吸気圧力との差圧に応じて前記上流側及び
下流側吸気圧力、又はいずれか一方の吸気圧力を
選択して送り込みを図る吸気圧制御弁を設けたこ
とを特徴とする電子制御式燃料噴射エンジンの燃
料圧力制御装置。 An on-off valve is provided in the intake passage on the intake downstream side of the throttle valve and upstream of the fuel injection valve, and increases or decreases the cross-sectional area of the intake passage according to the intake air flow rate, and the valve returns fuel according to the intake pressure. In a fuel pressure control device for an electronically controlled fuel injection engine, the fuel pressure control device includes a pressure control valve that keeps the fuel pressure to the fuel injection valve substantially constant while controlling the amount of fuel, the fuel pressure control device for an electronically controlled fuel injection engine comprising: An intake pressure control valve is provided that selects and feeds the upstream and downstream intake pressures, or either one of the intake pressures, depending on the differential pressure between the upstream intake pressure and the downstream intake pressure of the opening/closing body. A fuel pressure control device for an electronically controlled fuel injection engine, characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11586886U JPS6322378U (en) | 1986-07-30 | 1986-07-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11586886U JPS6322378U (en) | 1986-07-30 | 1986-07-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6322378U true JPS6322378U (en) | 1988-02-15 |
Family
ID=30999927
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11586886U Pending JPS6322378U (en) | 1986-07-30 | 1986-07-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6322378U (en) |
-
1986
- 1986-07-30 JP JP11586886U patent/JPS6322378U/ja active Pending