JPS58128456A - Evaporated fuel collecting device of internal- combustion engine - Google Patents
Evaporated fuel collecting device of internal- combustion engineInfo
- Publication number
- JPS58128456A JPS58128456A JP948482A JP948482A JPS58128456A JP S58128456 A JPS58128456 A JP S58128456A JP 948482 A JP948482 A JP 948482A JP 948482 A JP948482 A JP 948482A JP S58128456 A JPS58128456 A JP S58128456A
- Authority
- JP
- Japan
- Prior art keywords
- bellows
- fuel
- chamber
- evaporated
- engine
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M25/00—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture
- F02M25/08—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture adding fuel vapours drawn from engine fuel reservoir
- F02M25/0854—Details of the absorption canister
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M25/00—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture
- F02M25/08—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture adding fuel vapours drawn from engine fuel reservoir
- F02M2025/0881—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture adding fuel vapours drawn from engine fuel reservoir with means to heat or cool the canister
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Supplying Secondary Fuel Or The Like To Fuel, Air Or Fuel-Air Mixtures (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は、内燃機関において燃料タンク等から蒸発して
来る燃料ガスを活性炭等の吸着部材なしに捕集し得る燃
料捕集装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a fuel collection device capable of collecting fuel gas evaporated from a fuel tank or the like in an internal combustion engine without using an adsorption member such as activated carbon.
従来、燃料タンク内で発生した蒸発燃料ガスは活性炭等
を充填した容器としての蒸発ガス吸着装置（例えばキャ
ニスタ）によって吸着し、機関の運転中に吸気管負圧に
よりキャニスタよ）取多出し機関内に再導入している。Conventionally, evaporative fuel gas generated in a fuel tank is adsorbed by an evaporative gas adsorption device (for example, a canister), which is a container filled with activated carbon, etc., and taken out from the canister by negative pressure in the intake pipe during engine operation. It has been reintroduced.
しかしながら、キャニスタ内の活性炭等の吸着能力の低
下が生ずるとスが大気中に放出されることとなり、大気
汚染の恐れに加え燃料の損失となる・
従って、本発明は内燃機関に活性炭等の９＆着部材を使
用することなく蒸発燃料ガスの捕集金することができる
蒸発燃料捕集装置の構成を提供することにある。However, if the adsorption capacity of activated carbon, etc. in the canister decreases, sulfur will be released into the atmosphere, resulting in air pollution and fuel loss. It is an object of the present invention to provide a configuration of an evaporated fuel collection device that can collect evaporated fuel gas without using a deposition member.
この目的を達成するため本発明にあっては、過剰蒸発ガ
スの発生量に応じて容積の変化する蒸発燃料ｉ！を有し
比容器を設け、その室をチェッ・り弁を介してエンジン
の吸気管に接続している。In order to achieve this object, the present invention provides an evaporative fuel i! whose volume changes depending on the amount of excess evaporative gas generated. The engine is equipped with a ratio chamber, and its chamber is connected to the engine's intake pipe via a check valve.
以下図面によって本発明を説明すると、第１図において
１０はエンジン本体、１２は吸気管、１４は燃料タンク
である・
１６は蒸発燃料容器であシ、下端で閉じた筒状をなし、
上端に蓋１８が取付けられる。蓋１８の中央部にカップ
状のアダプタ２２が嵌合固着され、その下端はＩｔ１８
より容器１６の底部に向けて突出している。ベローズ２
４が容器１６内に配置され、そのベローズ２４の端縁部
２４′は容器１６とれる、ベローズ２４の内側には蒸発
ガス室２６がその外側には大気室２８が形成される。ば
れ３０が蒸発ガス室２６に設けられベローズ２４が拡開
膨張する如き付勢力を発揮している。アダプタ２２に蒸
気導入管３４が取付けられ、その蒸気導入管３４は一端
で燃料タンク１４の燃料液面よシ上方の空間に開口し、
他端で蒸発ガス室２６に開口している。蒸気導入管３４
０途中に冷却フィン３５が配置される。アダプタ２２に
更に蒸気排出管３８が壜付けられ、その蒸気排出管３８
は一端はスロットル弁３９よｐ下流のエンジン吸気管１
２に接続され、他端は蒸発ガス室２６に開口する。蒸気
排出管３８の途中には蒸発ガス室２６から吸気管１２の
側に向う流れのみ許容するチェック弁４０が配置される
。The present invention will be explained below with reference to the drawings. In Fig. 1, 10 is an engine body, 12 is an intake pipe, and 14 is a fuel tank. 16 is an evaporative fuel container, which has a cylindrical shape closed at the lower end.
A lid 18 is attached to the upper end. A cup-shaped adapter 22 is fitted and fixed in the center of the lid 18, and its lower end is connected to the It18
It protrudes more toward the bottom of the container 16. Bellows 2
4 is disposed in the container 16, and the end edge 24' of the bellows 24 is attached to the container 16. An evaporative gas chamber 26 is formed inside the bellows 24, and an atmospheric chamber 28 is formed outside the bellows 24. A baffle 30 is provided in the evaporative gas chamber 26 and exerts an urging force that causes the bellows 24 to expand and expand. A steam introduction pipe 34 is attached to the adapter 22, and one end of the steam introduction pipe 34 opens into a space above the fuel level of the fuel tank 14.
It opens into the evaporative gas chamber 26 at the other end. Steam introduction pipe 34
A cooling fin 35 is disposed midway. A steam exhaust pipe 38 is further attached to the adapter 22, and the steam exhaust pipe 38
One end is the engine intake pipe 1 downstream from the throttle valve 39.
2, and the other end opens to the evaporative gas chamber 26. A check valve 40 is arranged in the middle of the steam exhaust pipe 38 to allow only flow from the evaporative gas chamber 26 toward the intake pipe 12 side.
大気室２８は流量制御素子４２を介して大気と連通ずる
。この流量制御素子４２は並列に設けたチェ、り弁４４
及び絞）４６、並びに空気フィルタ４８より成る。チェ
ック弁４４は空気フィルタ４８から大気！！２８の偶に
向う流れのみ許容する向きに配置されている。Atmospheric chamber 28 communicates with the atmosphere via flow control element 42 . This flow rate control element 42 is connected to a check valve 44 provided in parallel.
and aperture) 46, and an air filter 48. The check valve 44 is exposed to the atmosphere from the air filter 48! ! It is arranged in an orientation that only allows flow in the 28-way direction.
以下本発明の作動を述べると、燃料タンク１４よシ蒸発
した燃料ガスは蒸気導入管３４を介し蒸発ガス室２６に
流入する。エンジン停止時についていえば、吸気管１２
は略大気圧下に在りチェ。The operation of the present invention will now be described. Fuel gas evaporated from the fuel tank 14 flows into the evaporative gas chamber 26 via the steam introduction pipe 34. Regarding when the engine is stopped, the intake pipe 12
is under approximately atmospheric pressure.
り弁４０は閉に保持されてｂるので、上記し九蒸発燃料
の流入によシベローズ２４は膨張し呈２６の容積は増大
し、一方大気室２８の空気はチェ。Since the exhaust valve 40 is held closed, the Siberose 24 expands due to the inflow of the vaporized fuel described above, and the volume of the chamber 26 increases, while the air in the atmospheric chamber 28 is filled with air.
り弁４６及びフィルタ４８を介して放出されるのでその
１ｉ１２８の容積は減少する。ばね３（ｌかかるベロー
ズ２４の膨張を助成するが、絞り４６によって空気の流
出速度が押えられるので、ベローズ２４の膨張速度は適
正に規正される。かくして、エンジンの停止中に生じた
蒸発燃料ガスを宸２６に捕集することがで返る。尚、冷
却フィン３５は蒸気導入管３４より蒸発ガス室２６に流
入する蒸発ガスの冷却を行い、その一部を液化する。そ
の結果、室２６に液体の形で燃料を捕集することかでき
大量の蒸気発生に対処することができる。The volume of 1i 128 decreases as it is discharged through valve 46 and filter 48. The spring 3 (l) assists the expansion of the bellows 24, but the outflow speed of the air is suppressed by the throttle 46, so that the expansion speed of the bellows 24 is appropriately regulated. The cooling fins 35 cool the evaporative gas flowing into the evaporative gas chamber 26 from the steam introduction pipe 34 and liquefy a part of it. Fuel can be collected in liquid form and large amounts of vapor generation can be handled.
エンジンの運転時は吸気管１２内は負圧となるので、チ
ェック弁４０は開となり蒸発ガス＊２６の燃料は蒸気排
出管３８より吸気管１２に導入される。そのため、宸２
６の容積は減少し、ばね３０に抗してペロー−ｅ２４は
収縮し、一方大気重２８の容積は増大する。大気室２８
の容積の増大時はチェック弁４４は開であるため、絞シ
４６による流速規制は行われないが、ばね３０の働きで
ベローズ２４の収縮速度は適正なものとなる。尚、ベロ
ーズ２４の収縮における極限は図の２点鎖線で示す如く
アダプタ２２Ｋｍ接する位置である。When the engine is operating, the pressure inside the intake pipe 12 is negative, so the check valve 40 is opened and the fuel in the form of evaporative gas *26 is introduced into the intake pipe 12 through the steam exhaust pipe 38. Therefore, 宸2
The volume of 6 decreases and the Perot-e 24 contracts against the spring 30, while the volume of atmospheric weight 28 increases. Atmospheric chamber 28
Since the check valve 44 is open when the volume of the bellows 24 increases, the flow rate is not restricted by the restrictor 46, but the contraction speed of the bellows 24 becomes appropriate due to the action of the spring 30. Incidentally, the limit of contraction of the bellows 24 is at a position where it contacts the adapter 22 km as shown by the two-dot chain line in the figure.
第２図は放熱フィン３５の代９に熱電冷却器４０１に蒸
発ガス導入管３４に設けたものである。In FIG. 2, a thermoelectric cooler 401 is provided in place 9 of the radiation fins 35 on the evaporative gas introduction pipe 34.
熱電冷却器４０の低温部４２は管３４に接触するよう設
けられ、高温部４４は大気と接触し、これらはパワテリ
Ｂによシ通電される・放熱フィンの場合より高い冷却能
力が得られることからより大量の蒸発ガス捕集能力を発
揮することができる。The low-temperature part 42 of the thermoelectric cooler 40 is provided so as to be in contact with the tube 34, and the high-temperature part 44 is in contact with the atmosphere, and these are energized by the power battery B. Higher cooling capacity can be obtained than in the case of heat radiation fins. It is possible to exhibit a larger amount of evaporative gas collection ability.
以上述べたように本発明によればベローズ等の収縮、！
＃脹千手段採用することにより、活性炭を使用すること
なく蒸発燃料の補集を行うむとが可能となる。As described above, according to the present invention, the bellows etc. contract!
# By adopting the evaporation method, it becomes possible to collect evaporated fuel without using activated carbon.
第１図は本発明の合体概略図、第２図は冷却装置の変形
を示す部分図。
１２・・・吸気管、１６・・・容器、２４・・・ぺｏ
−ス、２６・・・蒸発ガス室、４０・・・チェック弁。
特許出願人
トヨタ自動車工業株式会社
特許出願代塩入
弁理士 青 木 朗
弁理士 西舘和之
弁理士 中山恭介
弁理士 山 口 昭 之FIG. 1 is a schematic diagram of the combination of the present invention, and FIG. 2 is a partial diagram showing a modification of the cooling device. 12... Intake pipe, 16... Container, 24... Peo
-S, 26... Evaporative gas chamber, 40... Check valve. Patent applicant Toyota Motor Corporation Patent application agent Akira Shioiri Patent attorney Akira Aoki Patent attorney Kazuyuki Nishidate Patent attorney Kyosuke Nakayama Patent attorney Akira Yamaguchi
Claims (1)
燃料を受けとる蒸発ガスＩｉｔ形成し、該蒸発ガス室は
チェック弁を介して内燃機関の吸気系に接続され、可動
性手段の反対側には大気圧が作用している内燃機関の蒸
発燃料捕集装置。A flexible means is provided in the container and on one side of the flexible means receives the evaporative fuel and forms an evaporative gas Iit, the evaporative gas chamber is connected to the intake system of the internal combustion engine via a check valve, On the other side is the internal combustion engine's evaporative fuel collection device, which is exposed to atmospheric pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP948482A JPS58128456A (en) | 1982-01-26 | 1982-01-26 | Evaporated fuel collecting device of internal- combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP948482A JPS58128456A (en) | 1982-01-26 | 1982-01-26 | Evaporated fuel collecting device of internal- combustion engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58128456A true JPS58128456A (en) | 1983-08-01 |
Family
ID=11721510
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP948482A Pending JPS58128456A (en) | 1982-01-26 | 1982-01-26 | Evaporated fuel collecting device of internal- combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58128456A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5427076A (en) * | 1993-10-22 | 1995-06-27 | Honda Giken Kogyo Kabushiki Kaisha | Evaporative fuel-processing system for internal combustion engines for vehicles |
| US6736115B1 (en) * | 2003-02-28 | 2004-05-18 | Visteon Global Technologies, Inc. | Air induction system comprising thermal pump for hydrocarbon vapor control |
| CN107143441A (en) * | 2017-06-29 | 2017-09-08 | 浙江吉利汽车研究院有限公司 | A kind of vehicle fuel evaporation control system |
| JP2021516185A (en) * | 2018-02-28 | 2021-07-01 | カウテックス テクストロン ゲゼルシャフト ミット ベシュレンクテル ハフツング ウント コンパニー コマンディートゲゼルシャフト | Motor vehicle tank with volume element |
-
1982
- 1982-01-26 JP JP948482A patent/JPS58128456A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5427076A (en) * | 1993-10-22 | 1995-06-27 | Honda Giken Kogyo Kabushiki Kaisha | Evaporative fuel-processing system for internal combustion engines for vehicles |
| US6736115B1 (en) * | 2003-02-28 | 2004-05-18 | Visteon Global Technologies, Inc. | Air induction system comprising thermal pump for hydrocarbon vapor control |
| CN107143441A (en) * | 2017-06-29 | 2017-09-08 | 浙江吉利汽车研究院有限公司 | A kind of vehicle fuel evaporation control system |
| JP2021516185A (en) * | 2018-02-28 | 2021-07-01 | カウテックス テクストロン ゲゼルシャフト ミット ベシュレンクテル ハフツング ウント コンパニー コマンディートゲゼルシャフト | Motor vehicle tank with volume element |
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