JPS61147366U - - Google Patents
Info
- Publication number
- JPS61147366U JPS61147366U JP3063785U JP3063785U JPS61147366U JP S61147366 U JPS61147366 U JP S61147366U JP 3063785 U JP3063785 U JP 3063785U JP 3063785 U JP3063785 U JP 3063785U JP S61147366 U JPS61147366 U JP S61147366U
- Authority
- JP
- Japan
- Prior art keywords
- fuel
- return passage
- injection valve
- passage
- fuel return
- 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 27
- 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
- 238000002485 combustion reaction Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Fuel-Injection Apparatus (AREA)
Description
第１図はこの考案の第１実施例の概略構成図、
第２図はこの例の切換弁の断面図である。第３図
はこの考案の第２実施例の概略構成図、第４図は
この例の流量制御弁の断面図である。第５図は従
来装置の概略構成図である。
１……吸気絞り弁、２……吸気通路、３……燃
料噴射弁、４……燃料入り口通路、５……燃料出
口通路、６……燃料タンク、７……燃料供給通路
、８……燃料ポンプ、９……第１燃料戻り通路、
１０……燃料レギユレータ、１１……弁体、１２
……ダイヤフラム、１３……大気室、１４……調
圧室、１６……燃料出口部、１７……ダイヤフラ
ムスプリング、２０……第２燃料戻り通路、２１
……第２燃料出口部、２２……切換弁、２５……
燃料入り口通路、２６……燃料出口通路、２７…
…弁、２８……バルブスプリング、２９……ソレ
ノイド、３０……コア、３５……電源、３６……
イグニツシヨンスイツチ、３７……常開スイツチ
、４０……切換弁、４１……流量制御弁、４２…
…弁、４３……小孔、４５……常開スイツチ、４
６……常開スイツチ。
FIG. 1 is a schematic diagram of the first embodiment of this invention;
FIG. 2 is a sectional view of the switching valve of this example. FIG. 3 is a schematic diagram of a second embodiment of this invention, and FIG. 4 is a sectional view of the flow control valve of this example. FIG. 5 is a schematic configuration diagram of a conventional device. DESCRIPTION OF SYMBOLS 1... Intake throttle valve, 2... Intake passage, 3... Fuel injection valve, 4... Fuel inlet passage, 5... Fuel outlet passage, 6... Fuel tank, 7... Fuel supply passage, 8... Fuel pump, 9...first fuel return passage,
10... Fuel regulator, 11... Valve body, 12
...Diaphragm, 13...Atmospheric chamber, 14...Pressure adjustment chamber, 16...Fuel outlet section, 17...Diaphragm spring, 20...Second fuel return passage, 21
...Second fuel outlet section, 22...Switching valve, 25...
Fuel inlet passage, 26...Fuel outlet passage, 27...
... Valve, 28 ... Valve spring, 29 ... Solenoid, 30 ... Core, 35 ... Power supply, 36 ...
Ignition switch, 37... Normally open switch, 40... Selector valve, 41... Flow rate control valve, 42...
...Valve, 43...Small hole, 45...Never-open switch, 4
6... Always open switch.
Claims (1)
弁からの余剰燃料を燃料タンクに戻す燃料戻り通
路と、この燃料戻り通路に介装され噴射弁に作用
する燃料圧力を所定値に調圧する燃料レギユレー
タとを備える内燃機関の燃料供給装置において、
燃料レギユレータの調圧室に燃料圧力に応じて連
通開閉する第１の燃料戻り通路と、同じく調圧室
に常時開口する第２の燃料戻り通路と、この第２
燃料戻り通路を高温雰囲気下での再始動時にのみ
一時的に開く切換手段とを設けたことを特徴とす
る内燃機関の燃料供給装置。 A fuel supply passage that supplies fuel to the injection valve, a fuel return passage that returns excess fuel from the injection valve to the fuel tank, and a fuel interposed in this fuel return passage that regulates the fuel pressure acting on the injection valve to a predetermined value. A fuel supply device for an internal combustion engine comprising a regulator,
A first fuel return passage that opens and closes in communication with the pressure regulation chamber of the fuel regulator depending on the fuel pressure, a second fuel return passage that is also always open to the pressure regulation chamber, and this second fuel return passage.
1. A fuel supply device for an internal combustion engine, comprising a switching means for temporarily opening a fuel return passage only when restarting in a high temperature atmosphere.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3063785U JPS61147366U (en) | 1985-03-04 | 1985-03-04 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3063785U JPS61147366U (en) | 1985-03-04 | 1985-03-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61147366U true JPS61147366U (en) | 1986-09-11 |
Family
ID=30530515
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3063785U Pending JPS61147366U (en) | 1985-03-04 | 1985-03-04 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61147366U (en) |
-
1985
- 1985-03-04 JP JP3063785U patent/JPS61147366U/ja active Pending
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