JPS62135860U - - Google Patents
Info
- Publication number
- JPS62135860U JPS62135860U JP2427686U JP2427686U JPS62135860U JP S62135860 U JPS62135860 U JP S62135860U JP 2427686 U JP2427686 U JP 2427686U JP 2427686 U JP2427686 U JP 2427686U JP S62135860 U JPS62135860 U JP S62135860U
- Authority
- JP
- Japan
- Prior art keywords
- fuel
- valve
- starting
- passage
- fuel passage
- 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 25
- 241000234435 Lilium Species 0.000 claims description 2
- 239000006200 vaporizer Substances 0.000 claims description 2
- 238000011144 upstream manufacturing Methods 0.000 claims 5
- 230000006837 decompression Effects 0.000 claims 3
- 230000001105 regulatory effect Effects 0.000 claims 3
- 238000002485 combustion reaction Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Output Control And Ontrol Of Special Type Engine (AREA)
Description
第１図はこの考案の実施例の全体縦断面図、第
２図および第３図は吸気管負圧が小および大のと
きにおける第１図負圧式始動燃料切換弁の状態を
それぞれ示す詳細図、第４図は始動時の空燃比と
吸気管負圧の関係を示す説明図、第５図は従来例
の全体縦断面図である。
３…ベーパライザ、５…一次減圧室、６…二次
減圧弁、７…二次減圧室、８…主燃料通路、９…
キヤブレタ、１０…ベンチユリ部、１１…ノズル
、１３…緩速燃料供給弁、１４…緩速燃料通路、
１５…スロツトル・バルブ、１８，３３…始動ポ
ート、１９…始動燃料通路、２０…始動電磁弁、
３１，３２…燃料通路、３４…負圧式燃料切換弁
。
Fig. 1 is an overall longitudinal sectional view of an embodiment of this invention, and Figs. 2 and 3 are detailed views showing the states of the negative pressure starting fuel switching valve shown in Fig. 1 when the intake pipe negative pressure is small and large, respectively. , FIG. 4 is an explanatory diagram showing the relationship between the air-fuel ratio and the intake pipe negative pressure at the time of starting, and FIG. 5 is an overall vertical sectional view of the conventional example. 3... Vaporizer, 5... Primary pressure reducing chamber, 6... Secondary pressure reducing valve, 7... Secondary pressure reducing chamber, 8... Main fuel passage, 9...
carburetor, 10... bench lily part, 11... nozzle, 13... slow speed fuel supply valve, 14... slow speed fuel passage,
15...Throttle valve, 18, 33...Starting port, 19...Starting fuel passage, 20...Starting solenoid valve,
31, 32...Fuel passage, 34...Negative pressure type fuel switching valve.
Claims (1)
圧化するベーパライザと、前記二次減圧室から主
燃料通路を介してベンチユリ部開口に供給された
気体燃料と吸入空気とを混合するキヤブレタと、
前記キヤブレタに設けられて前記主燃料通路の面
積を制御する燃料流量調整弁と、前記一次減圧室
に設けられて吸気管負圧で作動する緩速燃料供給
弁と、前記緩速燃料供給弁から前記燃料流量調整
弁の上流側に連通する緩速燃料通路とからなる燃
料供給装置であつて、前記燃料流量調整弁の上流
側から分岐した始動燃料通路を設け、前記始動燃
料通路にスタータ作動時のみ通路を開く始動電磁
弁を設け、前記始動電磁弁の下流側の始動燃料通
路を分岐させて吸気通路路のスロツトル・バルブ
に近接した上流側の開口と下流側の開口にそれぞ
れ連通させ、前記分岐部には低温始動時は下流開
口に、低温時以外は上流側開口に連通させる負圧
式燃料切換弁を設けたことを特徴とするＬＰガス
内燃機関の燃料供給装置。 a vaporizer that vaporizes liquefied fuel in a primary decompression chamber and lowers the pressure in a secondary decompression chamber; and a carburetor that mixes intake air with gaseous fuel supplied from the secondary decompression chamber to the opening of the bench lily portion through the main fuel passage. ,
a fuel flow rate adjustment valve provided in the carburetor to control the area of the main fuel passage; a slow fuel supply valve provided in the primary pressure reduction chamber and operated by negative pressure in the intake pipe; A fuel supply device comprising a slow fuel passage communicating with the upstream side of the fuel flow rate regulating valve, wherein a starting fuel passage is provided that branches from the upstream side of the fuel flow regulating valve, and the starting fuel passage is provided with a slow fuel passage that communicates with the upstream side of the fuel flow regulating valve. A starting solenoid valve is provided which only opens a passage, and the starting fuel passage on the downstream side of the starting solenoid valve is branched to communicate with an upstream opening close to the throttle valve and an opening on the downstream side of the intake passageway, respectively. 1. A fuel supply device for an LP gas internal combustion engine, characterized in that a negative pressure type fuel switching valve is provided in the branch portion to communicate with a downstream opening during cold start and communicate with an upstream opening during times other than low temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2427686U JPS62135860U (en) | 1986-02-20 | 1986-02-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2427686U JPS62135860U (en) | 1986-02-20 | 1986-02-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62135860U true JPS62135860U (en) | 1987-08-26 |
Family
ID=30823358
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2427686U Pending JPS62135860U (en) | 1986-02-20 | 1986-02-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62135860U (en) |
-
1986
- 1986-02-20 JP JP2427686U patent/JPS62135860U/ja active Pending
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