JPS61192561U - - Google Patents
Info
- Publication number
- JPS61192561U JPS61192561U JP7643485U JP7643485U JPS61192561U JP S61192561 U JPS61192561 U JP S61192561U JP 7643485 U JP7643485 U JP 7643485U JP 7643485 U JP7643485 U JP 7643485U JP S61192561 U JPS61192561 U JP S61192561U
- Authority
- JP
- Japan
- Prior art keywords
- fuel
- chamber
- pressure
- intake air
- piston
- 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 23
- 238000002347 injection Methods 0.000 claims description 4
- 239000007924 injection Substances 0.000 claims description 4
- 239000002828 fuel tank Substances 0.000 claims description 2
- 238000001514 detection method Methods 0.000 claims 3
- 238000010586 diagram Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Landscapes
- Fuel-Injection Apparatus (AREA)
Description
第１図は本考案の一実施例である燃料調圧装置
の縦断面図、第２図は本考案を実施した燃料供給
装置の系統図である。
１…燃料タンク、２…燃料ポンプ、３…燃料ダ
ンパ、４…燃料フイルタ、５…燃料調圧器、６…
燃料供給通路、７…吸気通路、８…噴射弁、９…
燃料室、１０…ダイヤフラム室、１１…バネ、１
２…バルブ、１３…燃料戻し通路、１４…スロツ
トルチヤンバ、１５…エンジン室、１６…ピスト
ン室、１７…ピストン、１８…燃料圧力室、１９
…バネ室、２０…バネ、２１…円周溝、２２ａ，
２２ｂ，…空気通路、２３…負圧制御室、２４…
ダイヤフラム。
FIG. 1 is a vertical sectional view of a fuel pressure regulating device which is an embodiment of the present invention, and FIG. 2 is a system diagram of a fuel supply device implementing the present invention. DESCRIPTION OF SYMBOLS 1...Fuel tank, 2...Fuel pump, 3...Fuel damper, 4...Fuel filter, 5...Fuel pressure regulator, 6...
Fuel supply passage, 7... Intake passage, 8... Injection valve, 9...
Fuel chamber, 10...Diaphragm chamber, 11...Spring, 1
2... Valve, 13... Fuel return passage, 14... Throttle chamber, 15... Engine chamber, 16... Piston chamber, 17... Piston, 18... Fuel pressure chamber, 19
...Spring chamber, 20...Spring, 21...Circumferential groove, 22a,
22b,...air passage, 23...negative pressure control chamber, 24...
diaphragm.
Claims (1)
検出信号に基づいてエンジンの運転条件を設定し
設定に合つた制御信号を出力する制御部と、前記
制御信号により燃料を噴射するインジエクタ、燃
料ポンプからインジエクタに供給される燃料の圧
力が設定値を越えたとき燃料の圧力を燃料タンク
に戻しインジエクタに供給する燃料圧力を一定に
する調圧器を含む電子制御燃料噴射装置において
、前記調圧器は１枚のダイヤフラムにより燃料室
と負圧制御室に分離され、ダイヤフラム室はスロ
ツトルチヤンバにより分離された吸入空気路のエ
ンジン室側と吸入空気路入口側とに連通し、前記
燃料室の、圧力変化を検出する手段を備え、前記
圧力室の圧力変化によりダイヤフラム室と吸入空
気路を連通する２つの通路の吸入空気路入口側通
路の開口面積を変化させる構造をもつことを特徴
とする電子燃料噴射装置２、前記圧力検出部は往
復移動可能なピストンを有し、ピストンにより２
分された端室を包含し、２つの端室の一方は前記
燃料調圧器の燃料室に通じ端室にバネを設置し、
燃料室圧力によりピストンが移動する構造となつ
ており、前記負圧制御室と吸入空気路入口と連通
する通路が前記ピストン室と交差するよう設置さ
れ、ピストンの移動により、通路面積が変化する
構造となつていることを特徴とする実用新案登録
請求の範囲第１項記載の電子燃料噴射装置。 A control section that sets engine operating conditions based on detection signals from a group of sensors that detect various operating conditions of the engine and outputs control signals that match the settings, an injector that injects fuel based on the control signals, and a fuel pump to an injector. In an electronically controlled fuel injection system including a pressure regulator that returns the fuel pressure to the fuel tank and keeps the fuel pressure supplied to the injector constant when the pressure of the fuel supplied to the injector exceeds a set value, the pressure regulator is a single plate. The diaphragm separates the fuel chamber and the negative pressure control chamber, and the diaphragm chamber communicates with the engine room side and the intake air path inlet side of the intake air passage, which are separated by the throttle chamber, and controls pressure changes in the fuel chamber. An electronic fuel injection device comprising a detection means and having a structure that changes the opening area of the intake air passage inlet side passage of two passages communicating the diaphragm chamber and the intake air passage according to a pressure change in the pressure chamber. 2. The pressure detection section has a piston that can reciprocate, and the piston allows
comprising divided end chambers, one of the two end chambers communicating with the fuel chamber of the fuel pressure regulator and installing a spring in the end chamber;
A structure in which a piston moves according to fuel chamber pressure, a passage communicating with the negative pressure control chamber and an inlet of the intake air passage is installed to intersect with the piston chamber, and the area of the passage changes as the piston moves. An electronic fuel injection device according to claim 1, which is a utility model.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7643485U JPS61192561U (en) | 1985-05-24 | 1985-05-24 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7643485U JPS61192561U (en) | 1985-05-24 | 1985-05-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61192561U true JPS61192561U (en) | 1986-11-29 |
Family
ID=30618570
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7643485U Pending JPS61192561U (en) | 1985-05-24 | 1985-05-24 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61192561U (en) |
-
1985
- 1985-05-24 JP JP7643485U patent/JPS61192561U/ja active Pending
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