JPS5924263B2 - Carburetor in internal combustion engine - Google Patents
Carburetor in internal combustion engineInfo
- Publication number
- JPS5924263B2 JPS5924263B2 JP57170420A JP17042082A JPS5924263B2 JP S5924263 B2 JPS5924263 B2 JP S5924263B2 JP 57170420 A JP57170420 A JP 57170420A JP 17042082 A JP17042082 A JP 17042082A JP S5924263 B2 JPS5924263 B2 JP S5924263B2
- Authority
- JP
- Japan
- Prior art keywords
- activated carbon
- adsorption
- gasoline
- engine
- vapor
- 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.)
- Expired
Links
- 238000002485 combustion reaction Methods 0.000 title claims description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 47
- 239000000446 fuel Substances 0.000 claims description 26
- 239000000835 fiber Substances 0.000 claims description 12
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 8
- 239000003463 adsorbent Substances 0.000 claims description 8
- 230000002265 prevention Effects 0.000 claims description 5
- 238000009792 diffusion process Methods 0.000 claims description 4
- 238000001179 sorption measurement Methods 0.000 description 22
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical class C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 15
- 239000011521 glass Substances 0.000 description 6
- 238000003795 desorption Methods 0.000 description 5
- 239000007789 gas Substances 0.000 description 5
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 4
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- 229920003043 Cellulose fiber Polymers 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 229920006395 saturated elastomer Polymers 0.000 description 3
- 238000010998 test method Methods 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 2
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000004917 carbon fiber Substances 0.000 description 2
- MNNHAPBLZZVQHP-UHFFFAOYSA-N diammonium hydrogen phosphate Chemical compound [NH4+].[NH4+].OP([O-])([O-])=O MNNHAPBLZZVQHP-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- 230000004580 weight loss Effects 0.000 description 2
- 239000004254 Ammonium phosphate Substances 0.000 description 1
- 235000013162 Cocos nucifera Nutrition 0.000 description 1
- 244000060011 Cocos nucifera Species 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 229920001407 Modal (textile) Polymers 0.000 description 1
- 229920000297 Rayon Polymers 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- DZHMRSPXDUUJER-UHFFFAOYSA-N [amino(hydroxy)methylidene]azanium;dihydrogen phosphate Chemical compound NC(N)=O.OP(O)(O)=O DZHMRSPXDUUJER-UHFFFAOYSA-N 0.000 description 1
- SSBRSHIQIANGKS-UHFFFAOYSA-N [amino(hydroxy)methylidene]azanium;hydrogen sulfate Chemical compound NC(N)=O.OS(O)(=O)=O SSBRSHIQIANGKS-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 229910000148 ammonium phosphate Inorganic materials 0.000 description 1
- 235000019289 ammonium phosphates Nutrition 0.000 description 1
- 239000010425 asbestos Substances 0.000 description 1
- -1 boric acid Chemical class 0.000 description 1
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 1
- 239000004327 boric acid Substances 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- UBAZGMLMVVQSCD-UHFFFAOYSA-N carbon dioxide;molecular oxygen Chemical compound O=O.O=C=O UBAZGMLMVVQSCD-UHFFFAOYSA-N 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000012784 inorganic fiber Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000002964 rayon Substances 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- HPGGPRDJHPYFRM-UHFFFAOYSA-J tin(iv) chloride Chemical compound Cl[Sn](Cl)(Cl)Cl HPGGPRDJHPYFRM-UHFFFAOYSA-J 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Separation Of Gases By Adsorption (AREA)
Description
【発明の詳細な説明】
本発明は内燃機関のキャフルータ一部から蒸発する燃料
が大気中に放散するのを防止するためのキャブレータ−
の構造に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a carburetor for preventing fuel evaporated from a part of a carburetor of an internal combustion engine from dissipating into the atmosphere.
Regarding the structure of
近年、交通、運輸の発達に伴い輸送量、交通量が増大し
、各種自動車、航空機、モーターボート等に用いられる
ガソリン機関、各種船舶、発電、ポンプ、建設機械等に
用い′られるディーゼル機関等から排出される排気ガス
、蒸発燃料蒸気が人体や生物に対して与える悪影響が問
題になり、上記排気ガス、蒸発燃料蒸気の排出を規制す
ることが検討されている。In recent years, the amount of transportation has increased with the development of transportation, and emissions from gasoline engines used in various automobiles, aircraft, motor boats, etc., diesel engines used in various ships, power generation, pumps, construction machinery, etc. The negative effects of the exhaust gases and evaporated fuel vapors on the human body and living things have become a problem, and efforts are being made to regulate the emissions of the exhaust gases and evaporated fuel vapors.
したがってこれら有毒ガスの放散を防止するだめの対策
及び研究が急がれている。Therefore, measures and research to prevent the release of these toxic gases are urgently needed.
燃料蒸気の放散防止法としては、燃料蒸気をブローバイ
ガスとともに処理する方法、活性炭粉末を使用して燃料
蒸気を吸着する方法が知られているが、これらの方法で
は、燃料蒸気の放散を確実に防止するにはなお不充分で
あり、吸着効果を向上させるだめに活性炭層を増加すれ
ば圧力損失が大きくなって運転時の空気吸込に支障をき
たす。Known methods for preventing fuel vapor dissipation include treating fuel vapor with blow-by gas and adsorbing fuel vapor using activated carbon powder. However, it is still insufficient to prevent this, and if the number of activated carbon layers is increased to improve the adsorption effect, pressure loss will increase, which will impede air suction during operation.
本発明者らは、前述のような欠点を解消するために鋭意
研究の結果、本発明のキャブレータ−の構造に到達した
。The inventors of the present invention have conducted intensive research to solve the above-mentioned drawbacks, and as a result, have arrived at the structure of the carburetor of the present invention.
すなわち、本発明は燃料蒸気を吸着する吸着材を内蔵し
、エンジン停止中は蒸発する燃料を該吸着材で吸着させ
、運転中は該吸着材から脱着させ脱着燃料をエンジン部
へ送りこむ機構を有してなる燃料蒸気放散防止装置を近
傍に取付けたキャブレータ−において、前記吸着材が活
性炭素繊維を主材とするウェッブ、トウのような繊維集
合体であることを特徴とするものである。That is, the present invention has a built-in adsorbent that adsorbs fuel vapor, and has a mechanism that adsorbs evaporated fuel with the adsorbent while the engine is stopped, and desorbs it from the adsorbent while the engine is running, and sends the desorbed fuel to the engine section. This carburetor is provided with a fuel vapor diffusion prevention device installed nearby, characterized in that the adsorbent is a fiber aggregate such as a web or tow mainly composed of activated carbon fibers.
本発明によれば、従来の活性炭の場合、即ちエンジン停
止中は蒸発する燃料を活性炭で吸着させ運転中は該活性
炭から脱着させ脱着燃料蒸気をエンジン部へ送りこむ構
造を有してなる燃料蒸気放散防止機構（エアフィルター
）を近傍に装着したキャブレータ−を採用する場合に比
べて表面積がはるかに人きいために燃料蒸気、ことにガ
ソリン蒸気の吸着速度がきわめて速く、燃料蒸気を吸着
層を通して短時間に吸着させる場合にきわめて有利であ
る、また、この活性炭素繊維は表面積が大きいために脱
着速度も速く、吸着と脱着をくり返しながら行なう吸着
法によるガソリン蒸気の放散防止装置に使用すると非常
に好都合である。According to the present invention, in the case of conventional activated carbon, fuel vapor dissipation has a structure in which evaporated fuel is adsorbed by the activated carbon when the engine is stopped, and desorbed from the activated carbon while the engine is running, and the desorbed fuel vapor is sent to the engine part. Compared to the case of using a carburetor with a prevention mechanism (air filter) installed nearby, the surface area is much larger, so the adsorption speed of fuel vapor, especially gasoline vapor, is extremely fast, allowing fuel vapor to pass through the adsorption layer in a short time. Furthermore, because this activated carbon fiber has a large surface area, its desorption rate is fast, making it very convenient to use in devices for preventing the dispersion of gasoline vapor using an adsorption method that repeatedly performs adsorption and desorption. be.
更に上記活性炭素繊維は燃料蒸気の平衡吸着後に新しい
空気で脱着したときの燃料蒸気の残存量（吸着保持量）
との差が活性炭より人きぐ、これもまた燃料蒸気の放散
防止装置に使用して有利な点である。Furthermore, the activated carbon fiber has a residual amount of fuel vapor (adsorption/retention amount) when it is desorbed with fresh air after equilibrium adsorption of fuel vapor.
The difference between activated carbon and activated carbon is greater than that of activated carbon, which is also an advantage when used in fuel vapor diffusion prevention devices.
更に活性炭素繊維層を用いれば、繊維層の両側の圧力損
失が小さいだめに、運転時の空気吸込が容易に行なわれ
、かつ新しい空気による一旦吸着した燃料蒸気の脱着が
容易である。Furthermore, if an activated carbon fiber layer is used, since the pressure loss on both sides of the fiber layer is small, air can be easily sucked during operation, and fuel vapor once adsorbed can be easily desorbed by fresh air.
また活性炭素繊維は活性炭に比べて粉体化しがたく、取
扱いが容易であるという利点もある。Activated carbon fibers also have the advantage that they are less likely to turn into powder than activated carbon and are easier to handle.
本発明に係るキャブレータ−に装備せる活性炭Ｍ維はレ
ーヨン、綿のようなセルロース系のものであり、これは
燃料蒸気の吸着力が大きく好オしい。The activated carbon M fibers used in the carburetor of the present invention are cellulose-based fibers such as rayon and cotton, which are preferred because they have a large adsorption power for fuel vapor.
特にリン酸、リン酸アンモニウム、縮合リン酸、リン酸
尿素縮合物、テトラキスヒドロキシメチルホスホニウム
化合物のようなリン含有化合物、硫酸、硫酸アンモ−ラ
ム、硫酸−尿素縮合物のような硫酸系化合物、塩酸、ホ
ウ酸のような酸類、塩化アルミニウム、塩化錫のような
塩類でセルロース系繊維を前処理し、次いで炭化したも
のが特に吸着力が大きくて更に好ましい。In particular, phosphorus-containing compounds such as phosphoric acid, ammonium phosphate, condensed phosphoric acid, phosphate-urea condensates, tetrakishydroxymethylphosphonium compounds, sulfuric acid, sulfuric acid-based compounds such as ammorum sulfate, sulfuric acid-urea condensates, and hydrochloric acid. It is more preferable to pre-treat the cellulose fibers with acids such as boric acid, or salts such as aluminum chloride or tin chloride, and then carbonize them, as these have particularly high adsorption power.
上記炭素繊維は、例えば次のようにして製造される。The above-mentioned carbon fiber is manufactured, for example, as follows.
すなわち、セルロース系繊維に上記前処理剤（６０重量
％以下の濃度が好ましい）を含浸させたのち、２５０〜
４００℃の温度で加熱処理し、元のセルロース系繊維の
乾燥重量に対して５０％以上の減損率になるように炭化
し、その後、酸素、炭酸ガス、水蒸気等の気体中で３５
０’Ｃ以上に加熱して、上記減損率を６５〜９５％、炭
素含有率を６０重量％以上にすることにより製造する。That is, after impregnating cellulose fibers with the above pretreatment agent (preferably at a concentration of 60% by weight or less),
Heat-treated at a temperature of 400°C, carbonized to a loss rate of 50% or more based on the dry weight of the original cellulose fiber, and then carbonized in a gas such as oxygen, carbon dioxide, or water vapor for 35 minutes.
It is produced by heating to 0'C or more to make the loss rate 65 to 95% and the carbon content 60% by weight or more.
この活性炭素繊維は布帛、不織布等のウェッブあるいは
トウ等の通気性の繊維集合体として使用する。The activated carbon fibers are used as breathable fiber aggregates such as webs such as fabrics and nonwoven fabrics, or tows.
またこれらの繊維集合体には活性炭素繊維以外に天然繊
維、合成繊維を混用してもよく、更に補強材として無機
系の繊維、例えば石綿繊維、金属繊維を混用してもよい
。In addition to activated carbon fibers, natural fibers and synthetic fibers may be used in combination with these fiber aggregates, and inorganic fibers such as asbestos fibers and metal fibers may also be used as reinforcing materials.
上記炭素繊維は前述のような効果がいっそうすぐれてい
るばかりでなく、活性炭に比べて燃料蒸気の吸着量の温
度依存性が少なく、このことは運転中および運転後にか
なりの高温にさらされる燃料蒸気の放散防止装置の適用
にはきわめて有利である。The above-mentioned carbon fiber not only has the above-mentioned effects even better, but also has less temperature dependence in the adsorption amount of fuel vapor than activated carbon, which means that the amount of adsorption of fuel vapor is less dependent on temperature during and after operation. It is extremely advantageous for the application of a radiation prevention device.
本発明の活性炭素繊維集合体は前述のようなすぐれた諸
行性を有するので、特にガソリン機関のキャブレータ−
近傍に取付けてエンジン停止中は蒸発するガソリン蒸気
を吸着させ、運転中は上記繊維集合体を通して空気を吸
込ませることによって、いったん吸着したガソリンを脱
着して最終的に燃焼室に送りこむことによってガソリン
蒸気が大気中に放散するのを防止するのにきわめて有効
である。Since the activated carbon fiber aggregate of the present invention has excellent handling properties as described above, it is particularly suitable for use in carburetors of gasoline engines.
When the engine is installed nearby, it adsorbs the evaporating gasoline vapor when the engine is stopped, and when the engine is running, air is sucked in through the fiber aggregate, and the adsorbed gasoline is desorbed and finally sent to the combustion chamber, thereby generating gasoline vapor. It is extremely effective in preventing the release of into the atmosphere.
次に実施例について説明する。Next, an example will be described.
なお実施例中に用いたガソリン吸着試験法は次のとおり
である。The gasoline adsorption test method used in the examples is as follows.
ガソリン吸着試験法：ＪＩＳＫ１４１２に示されている
粒状活性炭のベンゼン吸着力の試験方法に準じて行なっ
た。Gasoline adsorption test method: This was carried out in accordance with the test method for the benzene adsorption power of granular activated carbon shown in JIS K1412.
第１図には試験装置を示す。１は恒温水槽で、２の水は
２０°Ｃに調節されている。Figure 1 shows the test equipment. 1 is a constant temperature water tank, and the water in 2 is adjusted to 20°C.
３，４及び５はそれぞれひんを示し、びん３には６のレ
ギュラーガソリンをほぼ４入れる。3, 4, and 5 each indicate the number of hours, and bottle 3 holds approximately 4 of 6 regular gasoline.
７及び８は細いガラス管を示し、一定量の空気を矢印で
示した如く吹込む。7 and 8 indicate thin glass tubes into which a certain amount of air is blown as indicated by the arrows.
びん３で生成したガソリン蒸気飽和空気は９の蛇管など
で温度調節され、空びん４を経て混合びん５にてガラス
管Ｉからの空気によって適当に希釈され、Ｕ字管１０に
充填された試料１１を通過して試料に吸着される。Gasoline vapor saturated air generated in bottle 3 is temperature-controlled with a flexible pipe 9, passes through empty bottle 4, is diluted appropriately in mixing bottle 5 with air from glass tube I, and is then filled into a U-shaped tube 10 as a sample. 11 and is adsorbed by the sample.
なおＵ字管１０の試料１１の径は約１６關、その長さは
約２００ｍｍである。The diameter of the sample 11 of the U-shaped tube 10 is about 16 mm, and the length is about 200 mm.
実施例
■、５ｄのポリノジック繊維よりなるフェルトを１００
重量％リン酸水素ニアンモニウムの溶液に３０分間浸漬
した後、５０℃で充分乾燥した。Example ■: 100 felts made of 5d polynosic fibers
After being immersed in a solution of % by weight ammonium hydrogen phosphate for 30 minutes, it was thoroughly dried at 50°C.
次にこのフェルトを２５０°Ｃに保った空気浴中に入れ
て、３℃／分の昇温速度で温度が３１０℃に到達するま
で昇温加熱した。Next, this felt was placed in an air bath maintained at 250°C and heated at a heating rate of 3°C/min until the temperature reached 310°C.
原料フェルトの乾燥重量に対する上記処理後の重量減損
率は５９％であった。The weight loss rate after the above treatment with respect to the dry weight of the raw felt was 59%.
さらに上記浴中の雰囲気を３５容量係の炭酸ガスを含有
する窒素におきかえ、３１０°Ｃから５°Ｃ／分の昇温
速度で温度が６００°Ｃに達するまで昇温加熱した。Furthermore, the atmosphere in the bath was changed to nitrogen containing 35 volumes of carbon dioxide gas, and the bath was heated from 310°C at a heating rate of 5°C/min until the temperature reached 600°C.
こうして得られた活性炭素繊維のフェルトはリン含有率
０．５重量％、炭素含有率７５５重量％上記の重量減損
率８２％であった。The activated carbon fiber felt thus obtained had a phosphorus content of 0.5% by weight, a carbon content of 755% by weight, and a weight loss rate of 82%.
上記活性炭素繊維を使用して、まずその吸着速度及び吸
着量を測定した。Using the above activated carbon fiber, the adsorption rate and adsorption amount were first measured.
第１図において、秤量したＵ字管１０に図の如く、約１
０ｇの試料を精秤して充填し、ガラス管８より一定流速
の空気（２，３６Ｘ １０−３ｇ／５ｅｃ）を送り込ん
でびん３でガソリンをバブリングさせながらその飽和蒸
気を作り、ガラス管７よりは空気を送らずに直接２０℃
に於けるガソリンの飽和蒸気を試料に吸着させた。In Fig. 1, the weighed U-shaped tube 10 has approximately 1
Precisely weigh and fill 0g of the sample, send air at a constant flow rate (2,36X 10-3g/5ec) through the glass tube 8, bubble gasoline in the bottle 3 to create saturated vapor, and then pour it through the glass tube 7. is directly heated to 20℃ without blowing air.
The sample was adsorbed with saturated gasoline vapor.
一定時間毎にＵ字管１０をばずしてその重量を測り、単
位重量当りの試料へのガソリン蒸気の吸着量を求めた。The U-shaped tube 10 was removed at regular intervals and its weight was measured to determine the amount of gasoline vapor adsorbed on the sample per unit weight.
結果を第２図に示す。The results are shown in Figure 2.
Ａは活性炭素繊維、Ｂは活性炭（ヤシガラ破砕炭）を用
いた場合におけるガソリン蒸気の吸着量の時間的変化で
ある。A is the change over time in the adsorption amount of gasoline vapor when activated carbon fiber is used, and B is activated carbon (crushed coconut shell charcoal).
第２図から活性炭素繊維のガソリン吸着速度及び吸着量
が著しく大きいことが確認される。From FIG. 2, it is confirmed that the activated carbon fiber has a significantly high gasoline adsorption rate and adsorption amount.
次に上記活性炭素繊維のガソリン蒸気脱着速度を測定し
た。Next, the gasoline vapor desorption rate of the activated carbon fiber was measured.
ガソリン蒸気を飽和するまで吸着した上記活性炭素繊維
及び活性炭の試料を上記Ｕ字管に充填し、ガラス管８よ
り新鮮な空気を一定流速（２，３６Ｘ １０ ’、ｐ／
５ｅｃ）で吹込みながら、一定時間毎にＵ字管１０をは
ずしてその重量をばかり、単位重量当りの試料中に残存
するガソリン蒸気の量を求めた。The above-mentioned activated carbon fiber and activated carbon samples adsorbed to saturation with gasoline vapor were filled into the above-mentioned U-shaped tube, and fresh air was introduced through the glass tube 8 at a constant flow rate (2.36 x 10', p/
While blowing at a rate of 5 ec), the U-tube 10 was removed and weighed at regular intervals to determine the amount of gasoline vapor remaining in the sample per unit weight.
結果を第３図に示す。Ａ、 Ｂはそれぞれ本発明の活性
炭素繊維及び活性炭の場合である。The results are shown in Figure 3. A and B are cases of activated carbon fiber and activated carbon of the present invention, respectively.
第３図より、活性炭素繊維からのガソリン蒸気の脱着速
度は活性炭に比較して著しく大きいことが確認された。From FIG. 3, it was confirmed that the desorption rate of gasoline vapor from activated carbon fibers was significantly higher than that from activated carbon.
以上のことから、本発明の活性炭素繊維は内燃機関のキ
ャブレータ一部からのガソリン蒸気の放散防止のだめの
素材として極めて優秀であることがわかる。From the above, it can be seen that the activated carbon fiber of the present invention is extremely excellent as a material for preventing the diffusion of gasoline vapor from a portion of the carburetor of an internal combustion engine.
第１図はカッリン蒸気の吸着試験に用いた装置の説明図
、第２図は単位重量当りの試料へのガソリン蒸気の吸着
速度を示すグラフ、第３図はガソリン蒸気で吸着平衡に
到達した試料の脱着速度を示すグラフである。
１・・・恒温槽、２・・・水、３・・・ガソリンびん、
４・・・空びん、５・・・混合ひん、６・・・レギュラ
ー・ガソリン、７，８・・・ガラス管、９・・・蛇管、
１０・・・Ｕ字管、１１・・・試料、Ａ・・・活性炭素
繊維の場合の曲線、Ｂ・・・活性炭の場合の曲線。Figure 1 is an explanatory diagram of the equipment used for the adsorption test of Kallin vapor, Figure 2 is a graph showing the adsorption rate of gasoline vapor on the sample per unit weight, and Figure 3 is a sample that has reached adsorption equilibrium with gasoline vapor. 2 is a graph showing the desorption rate of . 1... Constant temperature bath, 2... Water, 3... Gasoline bottle,
4...Empty bottle, 5...Mixing bottle, 6...Regular gasoline, 7, 8...Glass tube, 9...Snap tube,
10... U-shaped tube, 11... Sample, A... Curve in case of activated carbon fiber, B... Curve in case of activated carbon.
Claims (1)
中は蒸発する燃料を該吸着材で吸着させ、運転中は該吸
着材から脱着させ脱着燃料蒸気をエンジン部へ送りこむ
機構を有してなる燃料蒸気放散防止装置を近傍に取付け
たキャブレータ−において、前記吸着材が活性炭素繊維
を主材とするウェッブ、トウのような繊維集合体から構
成さｆてなることを特徴とする内燃機関におけるキャブ
レータ−８1. It has a built-in adsorbent that adsorbs fuel vapor, and has a mechanism that adsorbs evaporated fuel with the adsorbent when the engine is stopped, and desorbs it from the adsorbent while the engine is running, and sends the desorbed fuel vapor to the engine section. A carburetor for an internal combustion engine in which a fuel vapor diffusion prevention device is installed nearby, wherein the adsorbent is composed of a fiber aggregate such as a web or tow mainly composed of activated carbon fibers. -8
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57170420A JPS5924263B2 (en) | 1982-09-28 | 1982-09-28 | Carburetor in internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57170420A JPS5924263B2 (en) | 1982-09-28 | 1982-09-28 | Carburetor in internal combustion engine |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8975573A Division JPS5712415B2 (en) | 1973-08-09 | 1973-08-09 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5891360A JPS5891360A (en) | 1983-05-31 |
| JPS5924263B2 true JPS5924263B2 (en) | 1984-06-08 |
Family
ID=15904588
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57170420A Expired JPS5924263B2 (en) | 1982-09-28 | 1982-09-28 | Carburetor in internal combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5924263B2 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6568328B1 (en) * | 2018-06-19 | 2019-08-28 | 日本製紙株式会社 | Activated carbon fiber sheet for automobile canister |
| TWI750772B (en) * | 2019-08-21 | 2021-12-21 | 日商日本製紙股份有限公司 | Activated carbon fiber sheet for motor vehicle canister |
| TWI742804B (en) | 2019-08-21 | 2021-10-11 | 日商日本製紙股份有限公司 | Activated carbon fiber sheet for motor vehicle canister |
| JP2023069542A (en) * | 2021-11-05 | 2023-05-18 | 大阪ガスケミカル株式会社 | canister |
| JP2023069543A (en) * | 2021-11-05 | 2023-05-18 | 大阪ガスケミカル株式会社 | canister |
-
1982
- 1982-09-28 JP JP57170420A patent/JPS5924263B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5891360A (en) | 1983-05-31 |
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