JPS5846855U - fuel supply device - Google Patents
fuel supply deviceInfo
- Publication number
- JPS5846855U JPS5846855U JP14323481U JP14323481U JPS5846855U JP S5846855 U JPS5846855 U JP S5846855U JP 14323481 U JP14323481 U JP 14323481U JP 14323481 U JP14323481 U JP 14323481U JP S5846855 U JPS5846855 U JP S5846855U
- Authority
- JP
- Japan
- Prior art keywords
- fuel
- chamber
- diaphragm
- regulator
- venturi
- 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
Landscapes
- Control Of The Air-Fuel Ratio Of Carburetors (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
図はこの考案による実施例を示し、第１図は燃料供給装
置の全体縦断面図、第２図は負圧通路の可変絞りの縦断
面図である。
６・・・燃料開閉弁、７ａ・・・ロッド状弁子、８・・
・燃料室、９・・・圧力室、１２ａ、 １２ｂ、 ２
２−・・絞り、１４・・・燃料圧力レギュレータ。The figures show an embodiment of this invention, with FIG. 1 being a longitudinal cross-sectional view of the entire fuel supply device, and FIG. 2 being a longitudinal cross-sectional view of the variable throttle of the negative pressure passage. 6... Fuel on/off valve, 7a... Rod-shaped valve, 8...
・Fuel chamber, 9...Pressure chamber, 12a, 12b, 2
2--throttle, 14--fuel pressure regulator.
Claims (1)
心部にスモール働ベンチュリを備えり吸気通路と、ダイ
ヤフ）ムで仕切られた燃料室および圧力室からなり前記
スモール・ベンチュリに開口した吐出口と連通ずる燃料
開閉弁と、この燃料開閉弁に加圧燃料を送る燃料ポンプ
と、ダイヤフラムで仕切られたレギュレータ燃料室およ
びレギュレータ圧力室からなり加圧燃料の圧力を調整す
る燃料圧力レギュレータとを有する内燃機関の燃料供給
装置であって、前記圧力室はそれぞれ途中に絞りを備え
た通路＆とよって吸気通路入口およびベンチュリ部と連
通し、かつダイヤプラムを燃料室側へ常時押す圧縮スプ
リングが内挿され、前記燃料室は基部をダイヤフラム中
央に取り付けられ自由端部によって燃料出口を開閉する
ロッド状弁子を備え、この燃料室と前記燃料ポンプを連
通ずる燃料通路の途中には１個以上の絞りを備え、前記
レギュレータ燃料室は前記燃料ポンプと連通する燃料調
整口とダイヤフラムに取り付けられた弁子で開閉される
燃料流出口を備え、前記レギュレータ圧力室は吸気通路
入口と連通ずる空気口を備えかつダイヤフラムをレギュ
レータ燃料室側へ常時押す圧縮スプリングが内挿され、
前記圧力室か −ら吸気通路入口およびベンチュリ
部に連通ずる各通路の途中に設けられた前記絞りと前記
燃料室から燃料ポンプに連通ずる燃料通路の途中に設け
られた前記絞りとのうち、少なくとも１個は制御可能な
可変絞りとしたことを特徴とする燃料供給装置。There is a venturi section upstream of the throttle valve, and the center of the venturi section is equipped with a small working venturi, which consists of an intake passage, a fuel chamber and a pressure chamber separated by a diaphragm, and communicates with the discharge port opened in the small venturi. An internal combustion engine that has a fuel on-off valve that communicates with the fuel, a fuel pump that sends pressurized fuel to the fuel on-off valve, and a fuel pressure regulator that adjusts the pressure of the pressurized fuel and consists of a regulator fuel chamber and a regulator pressure chamber that are separated by a diaphragm. In the fuel supply device, each of the pressure chambers communicates with the intake passage inlet and the venturi portion through passages each having a throttle in the middle, and a compression spring is inserted that constantly pushes the diaphragm toward the fuel chamber, The fuel chamber includes a rod-shaped valve whose base is attached to the center of the diaphragm and whose free end opens and closes the fuel outlet, and one or more throttles are provided in the middle of a fuel passage communicating the fuel chamber and the fuel pump. , the regulator fuel chamber includes a fuel adjustment port communicating with the fuel pump and a fuel outlet opened and closed by a valve attached to a diaphragm, and the regulator pressure chamber includes an air port communicating with the intake passage inlet and a diaphragm. A compression spring is inserted that constantly pushes the regulator toward the fuel chamber.
At least one of the throttles provided in the middle of each passage communicating from the pressure chamber to the intake passage inlet and the venturi portion, and the throttle provided in the middle of the fuel passage communicating from the fuel chamber to the fuel pump. One is a fuel supply device characterized by having a controllable variable throttle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14323481U JPS5846855U (en) | 1981-09-26 | 1981-09-26 | fuel supply device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14323481U JPS5846855U (en) | 1981-09-26 | 1981-09-26 | fuel supply device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5846855U true JPS5846855U (en) | 1983-03-29 |
Family
ID=29936227
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14323481U Pending JPS5846855U (en) | 1981-09-26 | 1981-09-26 | fuel supply device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5846855U (en) |
-
1981
- 1981-09-26 JP JP14323481U patent/JPS5846855U/en active Pending
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