JPH0387956U - - Google Patents
Info
- Publication number
- JPH0387956U JPH0387956U JP14854189U JP14854189U JPH0387956U JP H0387956 U JPH0387956 U JP H0387956U JP 14854189 U JP14854189 U JP 14854189U JP 14854189 U JP14854189 U JP 14854189U JP H0387956 U JPH0387956 U JP H0387956U
- Authority
- JP
- Japan
- Prior art keywords
- air vent
- carburetor
- air
- engine
- 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 5
- 239000007858 starting material Substances 0.000 claims description 3
- 239000006200 vaporizer Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims 2
- 238000002485 combustion reaction Methods 0.000 claims 1
- 238000009423 ventilation Methods 0.000 description 1
Landscapes
- Supplying Secondary Fuel Or The Like To Fuel, Air Or Fuel-Air Mixtures (AREA)
Description
第1図は本考案による気化器のエアベント装置
の一実施例の模式的側面図、第2図は第1図中の
線−から見た部分正面図、第3図は第1図中
の気化器の縦断面図、第4図は第3図中の線−
に沿つた断面図、第5図は第1図中の切換え弁
の縦断面図、第6図は第1図中のキヤニスターの
縦断面図、第7図は本考案による気化器のエアベ
ント装置の他の実施例の模式的側面図、第8図は
本考案によるエアベント装置を有するエンジンを
搭載した自動2輪車の左側面図である。
13……エンジン、18……空気取入れ口、1
9……吸入ダクト(空気流路)、20……エアク
リーナ(空気流路)、21……気化器、22……
吸気通路、24……エレメント(フイルタ)、2
6……クリーンサイド、27……燃料溜め、33
……ベント通路、34……インナーベント通路、
35……切換え弁、36……ダイアフラム、39
……アウターベント通路、42……切換え室、4
3……弁体、49……インナーベント通路の先端
開口、50……空気流路、51……ベンチユリー
部、55……スターター通路、56……プランジ
ヤー(スターター機構)、60……キヤニスター
、70……燃料溜めの上部空間。
FIG. 1 is a schematic side view of an embodiment of the air vent device for a vaporizer according to the present invention, FIG. 2 is a partial front view taken from the line - in FIG. 1, and FIG. A vertical cross-sectional view of the vessel, Figure 4 shows the line - in Figure 3.
5 is a longitudinal sectional view of the switching valve in FIG. 1, FIG. 6 is a longitudinal sectional view of the canister in FIG. 1, and FIG. 7 is a longitudinal sectional view of the air vent device for a carburetor according to the present invention. A schematic side view of another embodiment, FIG. 8 is a left side view of a two-wheeled motor vehicle equipped with an engine having an air vent device according to the present invention. 13...Engine, 18...Air intake, 1
9... Suction duct (air flow path), 20... Air cleaner (air flow path), 21... Carburizer, 22...
Intake passage, 24...Element (filter), 2
6...Clean side, 27...Fuel reservoir, 33
...Vent passage, 34...Inner vent passage,
35...Switching valve, 36...Diaphragm, 39
...Outer vent passage, 42...Switching room, 4
3... Valve body, 49... End opening of inner vent passage, 50... Air flow path, 51... Ventilation part, 55... Starter passage, 56... Plunger (starter mechanism), 60... Canister, 70 ...The space above the fuel reservoir.
Claims (1)
給し、気化器で作成した混合気を燃焼室へ充填す
る車両用エンジンの気化器のエアベント装置にお
いて、気化器の燃料溜め上部空間からのエアベン
ト通路が切換え弁を介して大気または空気流路内
のいずれかに連通可能であり、前記切換え弁をエ
ンジン吸気負圧に感応して動作させることにより
、エンジン停止中は前記エアベント通路を大気に
連通させ、エンジン運転中は該エアベント通路を
空気流路内に連通させることを特徴とする気化器
のエアベント装置。 (2) 前記エアベント通路の前記空気流路へ連通
する部分を、空気取入れ口近傍で前方へ向けて開
口させることにより、前記燃料溜め上部空間に走
行風圧を導入して圧力上昇を図ることを特徴とす
る請求項1に記載の気化器のエアベント装置。 (3) 前記エアベント通路の前記大気へ連通する
部分に蒸散ガス吸着用のキヤニスターを取付ける
ことを特徴とする請求項1に記載の気化器のエア
ベント装置。 (4) 前記気化器に、前記燃料溜めからベンチユ
リー部へ低温始動用の混合気を供給するスタータ
ー機構が設けられていることを特徴とする請求項
1に記載の気化器のエアベント装置。[Scope of Claim for Utility Model Registration] (1) Air vent device for a vehicle engine carburetor that supercharges outside air into an air flow path using the wind pressure of the vehicle and fills the combustion chamber with the mixture created by the carburetor. The air vent passage from the upper space of the fuel reservoir of the carburetor can communicate with either the atmosphere or the inside of the air flow path via a switching valve, and the switching valve is operated in response to engine intake negative pressure. An air vent device for a carburetor, characterized in that when the engine is stopped, the air vent passage is communicated with the atmosphere, and when the engine is running, the air vent passage is communicated with the inside of the air flow passage. (2) A portion of the air vent passage that communicates with the air flow path is opened toward the front in the vicinity of the air intake port, thereby introducing traveling wind pressure into the upper space of the fuel reservoir to increase the pressure. The air vent device for a vaporizer according to claim 1. (3) The air vent device for a vaporizer according to claim 1, wherein a canister for adsorbing evaporated gas is attached to a portion of the air vent passage communicating with the atmosphere. (4) The air vent device for a carburetor according to claim 1, wherein the carburetor is provided with a starter mechanism that supplies a mixture for low-temperature starting from the fuel reservoir to the ventilate section.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14854189U JPH0387956U (en) | 1989-12-22 | 1989-12-22 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14854189U JPH0387956U (en) | 1989-12-22 | 1989-12-22 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0387956U true JPH0387956U (en) | 1991-09-09 |
Family
ID=31694986
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14854189U Pending JPH0387956U (en) | 1989-12-22 | 1989-12-22 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0387956U (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0704616A2 (en) | 1994-09-28 | 1996-04-03 | Honda Giken Kogyo Kabushiki Kaisha | Air vent apparatus for carburetor |
JPH0986463A (en) * | 1995-09-27 | 1997-03-31 | Yamaha Motor Co Ltd | Motorcycle |
JP2015132203A (en) * | 2014-01-14 | 2015-07-23 | 本田技研工業株式会社 | Saddle ride vehicle carburetor air vent pipe arrangement structure |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5419458U (en) * | 1977-07-12 | 1979-02-07 | ||
JPS5765841A (en) * | 1980-10-09 | 1982-04-21 | Aisan Ind Co Ltd | Carburetter |
JPS6151140A (en) * | 1984-08-21 | 1986-03-13 | Fuji Photo Film Co Ltd | Heat developable photosensitive material |
-
1989
- 1989-12-22 JP JP14854189U patent/JPH0387956U/ja active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5419458U (en) * | 1977-07-12 | 1979-02-07 | ||
JPS5765841A (en) * | 1980-10-09 | 1982-04-21 | Aisan Ind Co Ltd | Carburetter |
JPS6151140A (en) * | 1984-08-21 | 1986-03-13 | Fuji Photo Film Co Ltd | Heat developable photosensitive material |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0704616A2 (en) | 1994-09-28 | 1996-04-03 | Honda Giken Kogyo Kabushiki Kaisha | Air vent apparatus for carburetor |
JPH0986463A (en) * | 1995-09-27 | 1997-03-31 | Yamaha Motor Co Ltd | Motorcycle |
JP2015132203A (en) * | 2014-01-14 | 2015-07-23 | 本田技研工業株式会社 | Saddle ride vehicle carburetor air vent pipe arrangement structure |
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