JPH0237268U - - Google Patents
Info
- Publication number
- JPH0237268U JPH0237268U JP11561588U JP11561588U JPH0237268U JP H0237268 U JPH0237268 U JP H0237268U JP 11561588 U JP11561588 U JP 11561588U JP 11561588 U JP11561588 U JP 11561588U JP H0237268 U JPH0237268 U JP H0237268U
- Authority
- JP
- Japan
- Prior art keywords
- fuel
- negative pressure
- control section
- starter valve
- air
- 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 14
- 239000007858 starting material Substances 0.000 claims description 5
- 238000002347 injection Methods 0.000 claims description 4
- 239000007924 injection Substances 0.000 claims description 4
- 239000000498 cooling water Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims 1
- 238000011144 upstream manufacturing Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Fuel-Injection Apparatus (AREA)
Description
第１図は本考案による燃料噴射装置の第一実施
例を示す概略断面図、第２図は第一実施例のクラ
ンキング時における負圧Ｐ１と冷却水温の関係を
示す図、第３図は同じくクランキング時における
空燃比と冷却水温の関係を示す図、第４図は本考
案による燃料噴射装置の第二実施例を示す概略断
面図、第５図及び第６図は夫々第二実施例につい
ての第２図及び第３図と同様な図、第７図は先行
技術による燃料噴射装置を示す概略断面図である
。
６……スロツトルバルブ、８……スロー系燃料
制御部、９……メイン系燃料制御部、２４……負
圧通路、２５……スタータバルブ、３１……作動
負圧通路、３１ａ，３１ｂ……分岐作動負圧通路
、３４……第一バイパス通路、３６……第二バイ
パス通路、３６ａ……室、３８……バイパスエア
バルブ、４１……コントロールバルブ、４２……
バイメタル、４６……第三バイパス通路、４７…
…ＩＳＣバルブ。
Fig. 1 is a schematic sectional view showing a first embodiment of the fuel injection device according to the present invention, Fig. 2 is a diagram showing the relationship between negative pressure P1 and cooling water temperature during cranking of the first embodiment, and Fig. 3 4 is a schematic sectional view showing the second embodiment of the fuel injection device according to the present invention, and FIGS. 5 and 6 are diagrams showing the relationship between the air-fuel ratio and the cooling water temperature during cranking, respectively. FIG. 7, a diagram similar to FIGS. 2 and 3 for the example, is a schematic cross-sectional view of a fuel injection device according to the prior art. 6... Throttle valve, 8... Slow system fuel control section, 9... Main system fuel control section, 24... Negative pressure passage, 25... Starter valve, 31... Operating negative pressure passage, 31a, 31b... ...Branch operation negative pressure passage, 34...First bypass passage, 36...Second bypass passage, 36a...Chamber, 38...Bypass air valve, 41...Control valve, 42...
Bimetal, 46...Third bypass passage, 47...
...ISC valve.
Claims (1)
しめるスロー系燃料制御部と、大量の空気流量に
応じて大量の燃料量を吐出せしめるメイン系燃料
制御部とを備えた燃料噴射装置において、 負圧制御によるアイドルスピードコントロール
部と、一端が該アイドルスピードコントロール部
に接続されると共に他端が前記両燃料制御部の少
なくとも一方に連通していて前記アイドルスピー
ドコントロール部の制御負圧を印加する負圧通路
と、該負圧通路を開閉し得るスタータバルブと、
最小開度位置にあるスロツトルバルブの上流と下
流とに開口を有していて該開口の負圧に応じて前
記スタータバルブの開閉を制御するスタータバル
ブ作動手段とを備えていて、クランキング時にス
タータバルブを開弁せしめて冷却水温に応じた空
燃比の濃混合気をエンジンに供給するようにした
ことを特徴とする始動機構。[Scope of Claim for Utility Model Registration] A slow system fuel control section that discharges a small amount of fuel in response to a small amount of air flow, and a main system fuel control section that discharges a large amount of fuel in response to a large amount of air flow. A fuel injection device comprising: an idle speed control section by negative pressure control; and one end connected to the idle speed control section and the other end communicated with at least one of the two fuel control sections. a negative pressure passage that applies a controlled negative pressure; a starter valve that can open and close the negative pressure passage;
starter valve operating means having openings upstream and downstream of the throttle valve at the minimum opening position and controlling the opening and closing of the starter valve according to the negative pressure of the openings; A starting mechanism characterized in that a starter valve is opened to supply an air-fuel mixture with a rich air-fuel ratio according to cooling water temperature to an engine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11561588U JPH0237268U (en) | 1988-09-02 | 1988-09-02 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11561588U JPH0237268U (en) | 1988-09-02 | 1988-09-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0237268U true JPH0237268U (en) | 1990-03-12 |
Family
ID=31357437
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11561588U Pending JPH0237268U (en) | 1988-09-02 | 1988-09-02 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0237268U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS521237A (en) * | 1975-05-15 | 1977-01-07 | Tecalemit Ltd | Fuel injection system for internal combustion engine |
-
1988
- 1988-09-02 JP JP11561588U patent/JPH0237268U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS521237A (en) * | 1975-05-15 | 1977-01-07 | Tecalemit Ltd | Fuel injection system for internal combustion engine |
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