JPH0240980U - - Google Patents
Info
- Publication number
- JPH0240980U JPH0240980U JP12028688U JP12028688U JPH0240980U JP H0240980 U JPH0240980 U JP H0240980U JP 12028688 U JP12028688 U JP 12028688U JP 12028688 U JP12028688 U JP 12028688U JP H0240980 U JPH0240980 U JP H0240980U
- Authority
- JP
- Japan
- Prior art keywords
- fuel
- air
- control valve
- constant
- jet
- 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 20
- 239000000203 mixture Substances 0.000 claims 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 241000234435 Lilium Species 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Landscapes
- Fuel-Injection Apparatus (AREA)
Description
第１図は本考案による燃料供給装置の一実施例
の概略断面図、第２図は上記実施例における燃圧
差又は負圧と燃料噴射量との関係を示す特性曲線
図である。
１……吸気通路、２……エアクリーナ接続部、
３……ベンチユリ部、４……マニホールド、５…
…エアバルブ、６……負圧アクチユエータ、７…
…圧力制御バルブ、８……大気圧取入れ口、９…
…ニードルジエツト、１０……ニードル、１１…
…エアジエツト、１２……空気流量検出器、１３
……スロツトルバルブ、１５……燃料タンク、１
６……燃料ポンプ、１７……定流量制御弁、１８
……燃料制御バルブ、１９……燃圧レギユレータ
、２０……上流室、２０ａ……噴射弁、２１……
ノズル、２２……下流室、２３……第１ダイアフ
ラム、２４……メーンジエツト、２５……負圧室
、２６……大気圧室、２７……第２ダイアフラム
、２８……連結棒、２９……スプリング、３０…
…アジヤストスクリユ。
FIG. 1 is a schematic sectional view of an embodiment of a fuel supply device according to the present invention, and FIG. 2 is a characteristic curve diagram showing the relationship between fuel pressure difference or negative pressure and fuel injection amount in the above embodiment. 1...Intake passage, 2...Air cleaner connection part,
3... Bench lily section, 4... Manifold, 5...
...Air valve, 6...Negative pressure actuator, 7...
...Pressure control valve, 8...Atmospheric pressure intake, 9...
...Needle jet, 10...Needle, 11...
...Air jet, 12...Air flow rate detector, 13
... Throttle valve, 15 ... Fuel tank, 1
6...Fuel pump, 17...Constant flow control valve, 18
... Fuel control valve, 19 ... Fuel pressure regulator, 20 ... Upstream chamber, 20a ... Injection valve, 21 ...
Nozzle, 22... downstream chamber, 23... first diaphragm, 24... main jet, 25... negative pressure chamber, 26... atmospheric pressure chamber, 27... second diaphragm, 28... connecting rod, 29... Spring, 30...
…Asiast Skriyu.
Claims (1)
ジエツトとレギユレータを介して該燃料供給源に
燃料を戻す第１流路と、前記定流量制御弁とメー
ンジエツトとの間で前記第１流路を分岐せしめて
燃料をマニホールド内に噴射せしめる第２流路と
、ベンチユリ部に設けた空気流量検出器で検出し
た負圧と前記とメーンジエツトの前後における燃
圧差とをバランスさせるように燃料噴射量を計量
して混合気の空燃比を一定に維持する燃料制御バ
ルブとを備えた一系統圧力バランス式の燃料供給
装置において、前記空気流量検出器が、空気流量
に応じて開度が決まるエアバルブと、該エアバル
ブの下流側に設けられた負圧取入れ用のニードル
ジエツトと、該ニードルジエツト内に挿通され且
つ前記エアバルブに連動して進退せしめられるニ
ードルと、大気圧取入れ口とから構成されている
ことを特徴とする燃料供給装置。 a first flow path for returning fuel from a fuel supply source to the fuel supply source via a pump, a constant flow control valve, a main jet, and a regulator; and branching the first flow path between the constant flow control valve and the main jet. The amount of fuel to be injected is measured so as to balance the negative pressure detected by the air flow rate detector installed in the second flow path that injects fuel into the manifold and the fuel pressure difference before and after the main jet. In a single-system pressure-balanced fuel supply device that includes a fuel control valve that maintains a constant air-fuel ratio of the air-fuel mixture, the air flow rate detector is connected to an air valve whose opening degree is determined according to the air flow rate, and a fuel control valve that maintains a constant air-fuel ratio of the air-fuel mixture. It is characterized by being composed of a needle jet provided on the downstream side for intake of negative pressure, a needle inserted into the needle jet and moved forward and backward in conjunction with the air valve, and an atmospheric pressure intake port. Fuel supply device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12028688U JPH0240980U (en) | 1988-09-13 | 1988-09-13 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12028688U JPH0240980U (en) | 1988-09-13 | 1988-09-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0240980U true JPH0240980U (en) | 1990-03-20 |
Family
ID=31366257
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12028688U Pending JPH0240980U (en) | 1988-09-13 | 1988-09-13 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0240980U (en) |
-
1988
- 1988-09-13 JP JP12028688U patent/JPH0240980U/ja active Pending
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