JPS6210459Y2 - - Google Patents
Info
- Publication number
- JPS6210459Y2 JPS6210459Y2 JP1982021384U JP2138482U JPS6210459Y2 JP S6210459 Y2 JPS6210459 Y2 JP S6210459Y2 JP 1982021384 U JP1982021384 U JP 1982021384U JP 2138482 U JP2138482 U JP 2138482U JP S6210459 Y2 JPS6210459 Y2 JP S6210459Y2
- Authority
- JP
- Japan
- Prior art keywords
- adsorbent bed
- fuel
- adsorbent
- lid member
- processing device
- 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
- 239000000446 fuel Substances 0.000 claims description 30
- 239000003463 adsorbent Substances 0.000 claims description 25
- 238000001914 filtration Methods 0.000 claims description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 16
- 239000000428 dust Substances 0.000 description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- 229920003002 synthetic resin Polymers 0.000 description 6
- 239000000057 synthetic resin Substances 0.000 description 6
- 239000002828 fuel tank Substances 0.000 description 4
- 238000010926 purge Methods 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000005192 partition Methods 0.000 description 3
- 210000000078 claw Anatomy 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 238000003915 air pollution Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Supplying Secondary Fuel Or The Like To Fuel, Air Or Fuel-Air Mixtures (AREA)
Description
【考案の詳細な説明】
産業上の利用分野
本考案は、自動二輪車等の車両において、燃料
タンク、気化器のフロート室等より蒸発する蒸発
燃料を活性炭の如き吸着剤に一時的に吸着させ、
エンジンの稼動時には、前記吸着燃料をエンジン
の吸気系の還元させ、蒸発燃料の大気放散による
大気汚染を防止するとともに燃料の有効利用を図
るための蒸発燃料処理装置の吸着剤床に関するも
のである。[Detailed Description of the Invention] Industrial Application Field The present invention uses an adsorbent such as activated carbon to temporarily adsorb evaporated fuel that evaporates from a fuel tank, a float chamber of a carburetor, etc. in a vehicle such as a motorcycle.
The present invention relates to an adsorbent bed of an evaporative fuel processing device that reduces the adsorbed fuel to the engine intake system during operation of the engine, prevents air pollution due to evaporative fuel dissipation into the atmosphere, and effectively utilizes the fuel.
従来技術および考案が解決しようとする問題点
蒸発燃料処理装置の吸着剤床において、吸着剤
に吸入された燃料を脱離させて稼動エンジンに吸
入させる際に、埃、水等の異物を吸着剤に付着さ
せないようにする必要があつた。Problems to be solved by the prior art and the invention In the adsorbent bed of the evaporative fuel processing device, when the fuel sucked into the adsorbent is desorbed and sucked into the operating engine, foreign substances such as dust and water are removed from the adsorbent. It was necessary to prevent it from adhering to the surface.
この要求に適合しうる蒸発燃料処理装置の吸着
剤床として、実開昭51−94313号公報に示された
ものがあつた。 An adsorbent bed for an evaporated fuel processing apparatus that can meet this requirement is disclosed in Japanese Utility Model Application Publication No. 51-94313.
前記公報の吸着剤床では、ケースの上方に大気
開口を形成するとともにケースの下部を吸気系に
連通したため、雨水や洗車水等がこの大気開口よ
りケース内に浸入することがあるとともに、エン
ジン停止時に燃料系中に燃料とともに混在して凝
縮した水分が吸気系に落下して始動性が低下する
惧れがあつた。 In the adsorbent bed of the above publication, an atmospheric opening is formed above the case and the lower part of the case is connected to the intake system, so rainwater, car wash water, etc. may enter the case through this atmospheric opening, and the engine may stop. At times, there was a risk that moisture mixed with the fuel in the fuel system and condensed would fall into the intake system, reducing startability.
問題点を解決するための手段および作用
本考案はこのような難点を克服した蒸発燃料処
理装置の吸着剤床の改良に係り、中心線を上下方
向または斜方向に指向させた筒体内に吸着剤を収
納してなる蒸発燃料処理装置の吸着剤床におい
て、該筒体の上端を管体を介して燃料系および吸
気系に連通し、該筒体の下端に多孔部材よりなる
底板を固着し、蓋部材内に空気濾過部材を着脱自
在に内装した蓋部材を前記底板に嵌脱自在に嵌合
し、該蓋部材に大気開口とドレン排出口とを設け
ることにより、エンジンの停止時では、燃料系で
蒸発した蒸発燃料を筒体上端から筒体内に導入し
て吸着剤に吸着させ、吸着剤で吸着できなかつた
液化燃料や、蒸発燃料中に混合した水分等を筒体
の下端蓋部材のドレン排出口より円滑に排出させ
ることができ、またエンジン稼動時では、筒体の
下端蓋部材の大気開口により空気を吸入させ、こ
の蓋部材内の空気濾過部材にて埃等を除去した
後、吸着剤中を通過させて吸気剤中の燃料を離脱
させ、この燃料と混合した空気を筒体上端より吸
気系に供給させることができる。Means and Effects for Solving the Problems The present invention relates to an improvement of the adsorbent bed of an evaporative fuel processing device that overcomes the above-mentioned difficulties. In the adsorbent bed of the evaporative fuel processing device containing the cylindrical body, the upper end of the cylindrical body is connected to the fuel system and the intake system via the pipe body, and a bottom plate made of a porous member is fixed to the lower end of the cylindrical body, By removably fitting a lid member with an air filtration member inside the lid member removably to the bottom plate, and providing an atmospheric opening and a drain outlet in the lid member, when the engine is stopped, fuel can be removed. The evaporated fuel in the system is introduced into the cylinder from the upper end of the cylinder and adsorbed by the adsorbent, and the liquefied fuel that could not be adsorbed by the adsorbent and the moisture mixed in the evaporated fuel are removed from the bottom cover member of the cylinder. It can be drained smoothly from the drain outlet, and when the engine is running, air is sucked in through the atmospheric opening in the lower end lid member of the cylinder, and after removing dust etc. with the air filtering member in this lid member, The fuel in the intake agent is separated by passing through the adsorbent, and the air mixed with the fuel can be supplied to the intake system from the upper end of the cylinder.
実施例
以下本考案を自動二輪車に適用した図面に図示
された一実施例について説明する。Embodiment Hereinafter, an embodiment illustrated in the drawings in which the present invention is applied to a motorcycle will be described.
１は蒸発燃料処理装置の吸着剤床で、同吸着剤
床１の中空円筒状ケーシング３内には、吸着剤た
る活性炭２が内蔵され、同活性炭２を封入するよ
うに同ケーシング３の両端に多数の小孔を備えた
保持部材４，５が軸方向へ摺動自在に嵌合されて
いる。 Reference numeral 1 designates an adsorbent bed of an evaporative fuel processing device. Activated carbon 2, which is an adsorbent, is built into a hollow cylindrical casing 3 of the adsorbent bed 1, and the activated carbon 2 is placed at both ends of the casing 3 to enclose the activated carbon 2. Holding members 4 and 5 provided with a large number of small holes are fitted to be slidable in the axial direction.
しかして前記保持部材４，５が軸方向へ摺動自
在に嵌合されている。 Thus, the holding members 4 and 5 are fitted so as to be slidable in the axial direction.
しかして前記保持部材４，５の内面には、比較
的目の粗いフイルター６が添接されている。 A relatively coarse filter 6 is attached to the inner surface of the holding members 4, 5.
また前記中空円筒状ケーシング３の上端に上方
端板７がかしめ付けされている。 Further, an upper end plate 7 is caulked to the upper end of the hollow cylindrical casing 3.
さらに前記下方保持部材５の外面と下方端板８
の内面との間に圧縮コイルスプリング１６９介装
され、同下方端板８は中空円筒状ケーシング３の
下端にかしめ付けされており、中空円筒状ケーシ
ング３および保持部材４，５で囲まれた活性炭２
は、圧縮コイルスプリング９のばね力により略一
定の圧力に圧縮され、振動、衝撃等により活性炭
２が破砕されても、活性炭２の相互間に隙間が生
じないようになつている。 Furthermore, the outer surface of the lower holding member 5 and the lower end plate 8
A compression coil spring 169 is interposed between the lower end plate 8 and the inner surface of the hollow cylindrical casing 3, and the lower end plate 8 is caulked to the lower end of the hollow cylindrical casing 3. 2
are compressed to a substantially constant pressure by the spring force of the compression coil spring 9, so that even if the activated carbon 2 is crushed by vibration, impact, etc., no gaps will be created between the activated carbons 2.
さらにまた前記上方端板７および上方保持部材
４の中心を貫通して仕切円筒１０が設けられ、同
仕切円筒１０の底部および端板７にそれぞれチヤ
ージジヨイント１１およびパージジヨイント１２
が一体に嵌着されている。 Furthermore, a partition cylinder 10 is provided passing through the center of the upper end plate 7 and the upper holding member 4, and a charge joint 11 and a purge joint 12 are provided at the bottom of the partition cylinder 10 and the end plate 7, respectively.
are fitted together.
また前記下方端板８に多数の小孔１３が形成さ
れるとともに、同端板８の中心に嵌合孔１４が形
成されている。 Further, a large number of small holes 13 are formed in the lower end plate 8, and a fitting hole 14 is formed in the center of the end plate 8.
させら前記下方端板８の外面に前記フイルター
６よりもやや目の粗いスポンジゴムの如きフイル
ター１５が添接され、同フイルター１５を外方か
ら支持する合成樹脂製キヤツプ１６の傘状係止爪
１７が前記フイルター１５を貫通して端板８の嵌
合孔１４に係止されるようになつている。 A filter 15 made of sponge rubber, which is slightly coarser than the filter 6, is attached to the outer surface of the lower end plate 8, and an umbrella-shaped locking claw of a synthetic resin cap 16 supports the filter 15 from the outside. 17 passes through the filter 15 and is engaged with the fitting hole 14 of the end plate 8.
しかして合成樹脂製キヤツプ１６は円錐形状に
形成され、その頂端斜面にドレンジヨイント１８
が付設されるとともに、同キヤツプ１６の斜面に
空気吸入ジヨイント１９が付設されており、同ジ
ヨイント１８，１９にドレンパイプ２０および空
気吸入パイプ２１がそれぞれ接続されるようにな
つている。 Thus, the synthetic resin cap 16 is formed into a conical shape, and a drain joint 18 is formed on the sloped top end thereof.
An air suction joint 19 is attached to the slope of the cap 16, and a drain pipe 20 and an air suction pipe 21 are connected to the joints 18 and 19, respectively.
またチヤージジヨイント１１はチヤージライン
２２を介して燃料タンク２４内の気液セパレータ
（図示されず）に接続され、パージジヨイント１
２はパージライン２３を介してエンジン２５の吸
気管（図示されず）に接続されている。 The charge joint 11 is also connected to a gas-liquid separator (not shown) in the fuel tank 24 via a charge line 22.
2 is connected to an intake pipe (not shown) of an engine 25 via a purge line 23.
さらに前記ドレンパイプ２０は下方へ指向され
て、その下端はクランクケース２６の後方に開口
され、前記空気吸入パイプ２１は上方へ指向させ
て車体中央部のシート２８の下側に位置して水、
埃の少ない個所に開口される。 Further, the drain pipe 20 is oriented downward and its lower end is opened to the rear of the crankcase 26, and the air intake pipe 21 is oriented upward and is located below the seat 28 in the center of the vehicle body.
Open in a place with less dust.
図示の実施例は前記したように構成されている
ので、エンジン停止時においては、燃料タンク２
４内の燃料が蒸発した蒸発燃料はチヤージライン
２２を介して吸着剤床１に導入されて、同吸着剤
床１内の活性炭２に吸着される。 Since the illustrated embodiment is configured as described above, when the engine is stopped, the fuel tank 2
The evaporated fuel from the evaporated fuel in the adsorbent bed 1 is introduced into the adsorbent bed 1 through the charge line 22, and is adsorbed onto the activated carbon 2 in the adsorbent bed 1.
そして液化燃料や、蒸発燃料中に混合した水分
等は、ドレンパイプ２０を介して車外に排出され
る。 The liquefied fuel and the moisture mixed in the evaporated fuel are discharged to the outside of the vehicle via the drain pipe 20.
この場合ドレンパイプ２０の下端はクランクケ
ース２６の後方に開口されているため、前記液化
燃料や水分は車体に付着することはない。 In this case, since the lower end of the drain pipe 20 is opened to the rear of the crankcase 26, the liquefied fuel and moisture will not adhere to the vehicle body.
また自動二輪車の走行中に伴なつて埃が舞上が
り、または路面上の水しぶきを立てた場合には、
空気吸入パイプ２１の上端は車体中央部のシート
２８の下側に開口されているため、これらの埃や
水しぶきは空気吸入パイプ２１を介して合成樹脂
製キヤツプ１６内に浸入し難い。 In addition, if dust is thrown up or water is splashed on the road surface while the motorcycle is running,
Since the upper end of the air suction pipe 21 is opened below the seat 28 in the center of the vehicle body, it is difficult for these dust and water to enter the synthetic resin cap 16 through the air suction pipe 21.
さらにこれや埃や水しぶきが合成樹脂製キヤツ
プ１６内に浸入しても、下方端板８の外面にフイ
ルター１５が添接され、しかも保持部材５の内面
にフイルター１５よりも目の小さなフイルター６
が添接されているため、これらのフイルター１
５，６によつて補集され活性炭２に付着され難
く、吸着剤床１の耐久性が向上し、コストの面で
有利となる。 Furthermore, even if this, dust, or water spray enters the synthetic resin cap 16, a filter 15 is attached to the outer surface of the lower end plate 8, and a filter 6 with smaller mesh than the filter 15 is attached to the inner surface of the holding member 5.
are attached, these filters 1
5 and 6 and is difficult to adhere to the activated carbon 2, the durability of the adsorbent bed 1 is improved and it is advantageous in terms of cost.
さらにまた前記埃や水しぶきの大部分はフイル
ター１５にて補集されるため、合成樹脂製キヤツ
プ１６を外してフイルター１５を交換しあるいは
フイルター１５を清浄すれば、吸入空気抵抗の増
大を阻止できる。 Furthermore, most of the dust and water spray is collected by the filter 15, so if the synthetic resin cap 16 is removed and the filter 15 is replaced or cleaned, an increase in intake air resistance can be prevented.
考案の効果
このように本考案においては、エンジン停止時
では、蒸発燃料中に混合した水分が吸気系に流入
することを未然に阻止して始動性の低下を防ぐこ
とができ、しかも雨水や洗車水が筒体にかかり、
また埃の多い場所を走行しても、その周面から外
側下方へ落下させ、外部からの水や埃の筒体内へ
の浸入を確実に阻止でき、吸着性能の劣化を未然
に防止できるとともに耐久性を大巾に向上するこ
とができ、また筒体の下端から蓋部材を外して蓋
部材内の空気濾過部材の交換を簡単に行うことが
できる。Effects of the invention In this way, when the engine is stopped, the moisture mixed in the evaporated fuel can be prevented from flowing into the intake system, thereby preventing deterioration in starting performance. Water splashes onto the barrel,
In addition, even when driving in a dusty area, water and dust can be dropped from the outside downward from the circumference, reliably preventing water and dust from entering the cylinder from the outside, preventing deterioration of suction performance, and increasing durability. Furthermore, the air filtration member inside the lid member can be easily replaced by removing the lid member from the lower end of the cylindrical body.
第１図は本考案に係る蒸発燃料処理装置の吸着
剤床の一実施例を備えた自動二輪車の側面図、第
２図は同実施例の縦断側面図である。
１……吸着剤床、２……活性炭、３……中空円
筒状ケーシング、４，５……保持部材、６……フ
イルター、７，８……端板、９……圧縮コイルス
プリング、１０……仕切円筒、１１……チヤージ
ジヨイント、１２……パージジヨイント、１３…
…小孔、１４……嵌合孔、１５……フイルター、
１６……合成樹脂製キヤツプ、１７……傘状係止
爪、１８……ドレンジヨイント、１９……空気吸
入ジヨイント、２０……ドレンパイプ、２１……
空気吸入パイプ、２２……チヤージライン、２３
……パージライン、２４……燃料タンク、２５…
…エンジン、２６……クランクケース、２７……
後輪タイヤ、２８……シート。
FIG. 1 is a side view of a motorcycle equipped with an embodiment of an adsorbent bed of an evaporative fuel processing device according to the present invention, and FIG. 2 is a longitudinal sectional side view of the same embodiment. DESCRIPTION OF SYMBOLS 1... Adsorbent bed, 2... Activated carbon, 3... Hollow cylindrical casing, 4, 5... Holding member, 6... Filter, 7, 8... End plate, 9... Compression coil spring, 10... ...Partition cylinder, 11...Charge joint, 12...Purge joint, 13...
...small hole, 14...fitting hole, 15...filter,
16...Synthetic resin cap, 17...Umbrella-shaped locking claw, 18...Drain joint, 19...Air suction joint, 20...Drain pipe, 21...
Air intake pipe, 22...Charge line, 23
...Purge line, 24...Fuel tank, 25...
...Engine, 26...Crankcase, 27...
Rear tire, 28...seat.
Claims (1)
体内に吸着剤を収納してなる蒸発燃料処理装置の
吸着剤床において、該筒体の上端を管体を介して
燃料系および吸気系に連通し、該筒体の下端に多
孔部材よりなる底板を固着し、蓋部材内に空気濾
過部材を着脱自在に内装した蓋部材を前記底板に
嵌脱自在に嵌合し、該蓋部材に大気開口とドレン
排出口とを設けたことを特徴とする蒸発燃料処理
装置の吸着剤床。 In an adsorbent bed of an evaporative fuel processing device in which an adsorbent is housed in a cylinder whose center line is oriented vertically or diagonally, the upper end of the cylinder is connected to the fuel system and the intake system via a pipe. A bottom plate made of a porous member is fixed to the lower end of the cylindrical body, a lid member having an air filtration member removably installed inside the lid member is removably fitted to the bottom plate, and an atmospheric opening is provided in the lid member. An adsorbent bed for an evaporated fuel processing device, characterized in that the adsorbent bed is provided with a drain outlet and a drain outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2138482U JPS58124654U (en) | 1982-02-19 | 1982-02-19 | Adsorbent bed of evaporative fuel treatment equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2138482U JPS58124654U (en) | 1982-02-19 | 1982-02-19 | Adsorbent bed of evaporative fuel treatment equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58124654U JPS58124654U (en) | 1983-08-24 |
| JPS6210459Y2 true JPS6210459Y2 (en) | 1987-03-11 |
Family
ID=30033502
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2138482U Granted JPS58124654U (en) | 1982-02-19 | 1982-02-19 | Adsorbent bed of evaporative fuel treatment equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58124654U (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58151423U (en) * | 1982-04-05 | 1983-10-11 | トヨタ自動車株式会社 | Activated carbon container for adsorbing fuel evaporative gas |
| KR20040037402A (en) * | 2002-10-28 | 2004-05-07 | 현대자동차주식회사 | canister for a vehicle |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5194313U (en) * | 1975-01-25 | 1976-07-29 |
-
1982
- 1982-02-19 JP JP2138482U patent/JPS58124654U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58124654U (en) | 1983-08-24 |
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