JP2530336B2 - Air intake device for motorcycles - Google Patents
Air intake device for motorcyclesInfo
- Publication number
- JP2530336B2 JP2530336B2 JP62162463A JP16246387A JP2530336B2 JP 2530336 B2 JP2530336 B2 JP 2530336B2 JP 62162463 A JP62162463 A JP 62162463A JP 16246387 A JP16246387 A JP 16246387A JP 2530336 B2 JP2530336 B2 JP 2530336B2
- Authority
- JP
- Japan
- Prior art keywords
- air
- air cleaner
- air intake
- intake device
- main frame
- 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 - Fee Related
Links
- 239000002828 fuel tank Substances 0.000 claims description 9
- 238000007599 discharging Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
Landscapes
- Automatic Cycles, And Cycles In General (AREA)
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明は、エアクリーナ及び燃料タンクをタンクカバ
ーにて被うタイプの自動二輪車の空気取入れ装置に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air intake device for a motorcycle of a type in which an air cleaner and a fuel tank are covered with a tank cover.
（従来の技術） 特に、シリンダ部を車体の前後に配した直列Ｖ型エン
ジンを搭載した自動二輪車にあっては、エンジンの後方
シリンダ部が前方シリンダ部のかげりとなって該後方シ
リンダ部に走行風が当たりにくくなり、冷却上の問題を
生ずることに鑑み、車体前方に空気流入口を有し、エン
ジンの後方シリンダ部に空気流出口を有する空気通路を
設けて該空気通路を流れる空気によって後方シリンダ部
を冷却する提案がなされている（特開昭55−5424号公報
参照）。(Prior Art) In particular, in a motorcycle equipped with an in-line V-type engine in which cylinder parts are arranged in front of and behind the vehicle body, the rear cylinder part of the engine becomes a shadow of the front cylinder part and travels to the rear cylinder part. In view of the difficulty of hitting the wind and causing a cooling problem, an air passage having an air inlet in the front of the vehicle body and an air outlet having an air outlet in the rear cylinder portion of the engine is provided, and the air flowing in the air passage causes the air to flow backward. A proposal has been made to cool the cylinder portion (see Japanese Patent Laid-Open No. 55-5424).
一方、エアクリーナ及び燃料タンクをタンクカバーに
て被うタイプの自動二輪車にあっては、エアクリーナへ
新気を供給するとともに、エンジンからの熱の上昇を遮
断する目的で、その一端が車体前方部に開口し、他端が
エアクリーナの前部下側周辺に開口する吸気ダクトを設
ける提案がなされている（特願昭61−208264号明細書参
照）。On the other hand, in motorcycles where the air cleaner and the fuel tank are covered with a tank cover, one end of the motorcycle is located at the front of the vehicle body in order to supply fresh air to the air cleaner and block the rise of heat from the engine. It has been proposed to provide an air intake duct that is open and the other end is open around the lower front part of the air cleaner (see Japanese Patent Application No. 61-208264).
（発明が解決しようとする問題点） しかしながら、上記吸気ダクトを設けるものにあって
は、吸気ダクトからタンクカバー内に流入した空気をタ
ンクカバー外へ有効に排出する手段が特に設けられてい
なかったため、その本来の目的を十分には達成すること
ができなった。(Problems to be Solved by the Invention) However, in the case where the intake duct is provided, a means for effectively discharging the air flowing into the tank cover from the intake duct to the outside of the tank cover is not particularly provided. , I could not achieve its original purpose.
本発明は上記事情に鑑みてなされたもので、その目的
とする処は、エアクリーナへの新規の流入効率を向上さ
せるとともに、エンジン熱の上昇を効果的に遮断するこ
とができる自動二輪車の空気取入れ装置を提供するにあ
る。The present invention has been made in view of the above circumstances, and an object of the present invention is to improve the efficiency of new inflow into an air cleaner and to effectively prevent an increase in engine heat from being introduced into a motorcycle. To provide the equipment.
（問題点を解決するための手段） 上記目的を達成すべく本発明は、ヘッドパイプから公
報へ延出する二股状のメインフレームにて囲まれる空間
内の前後にエアクリーナ、燃料タンクをそれぞれ配し、
これらエアクリーナ及び燃料タンクをタンクカバーにて
被う自動二輪車の空気取入れ装置において、一端が車体
前方に開口し、他端が前記エアクリーナの前部下側周辺
に開口する吸気ダクトを設けるとともに、一端が前方に
開口し、他端が車体左右方向外側へ開口する排気ダクト
を前記メインフレームの後半部内側に設けたことを特徴
とする。(Means for Solving the Problems) In order to achieve the above-mentioned object, the present invention has an air cleaner and a fuel tank arranged in front of and behind a space surrounded by a bifurcated main frame extending from a head pipe to a gazette. ,
In an air intake device for a motorcycle in which the air cleaner and the fuel tank are covered with a tank cover, an intake duct having one end opening toward the front of the vehicle body and the other end opening toward the lower front portion of the air cleaner is provided, and one end is forward. An exhaust duct having an opening at the other end and an opening at the other end to the outside in the left-right direction of the vehicle body is provided inside the latter half of the main frame.
（作用） 而して、吸気ダクトからメインフレーム及びタンクカ
バーにて囲まれる空間内に導入される新気は、同空間内
に配されたエアクリーナの下部壁に沿って流れ、排気ダ
クトに沿って抵抗なく円滑に車体左右方向外側へ排出さ
れるため、エアクリーナへの新気の流入効率が高められ
るとともに、流れる新気のエアカーテン効率によってエ
ンジン熱の上昇が効果的に遮断されてエアクリーナの加
熱が防がれるため、エンジン条件が変化しても安定した
エンジンの出力特性が得られる。(Operation) Thus, the fresh air introduced from the intake duct into the space surrounded by the main frame and the tank cover flows along the lower wall of the air cleaner arranged in the space and along the exhaust duct. Since the air is smoothly discharged to the outside in the left-right direction of the vehicle without resistance, the efficiency of inflow of fresh air into the air cleaner is increased, and the rise of engine heat is effectively blocked by the air curtain efficiency of the fresh air flowing, thus heating the air cleaner. Since this is prevented, stable output characteristics of the engine can be obtained even if the engine conditions change.
（実施例） 以下に本発明の一実施例を添付図面に基づいて説明す
る。(Embodiment) An embodiment of the present invention will be described below with reference to the accompanying drawings.
第１図は本発明に係る空気取入れ装置を備える自動二
輪車要部の側面図、第２図は同自動二輪車要部の一部破
断平面図、第３図は第１図のIII−III線断面図である。FIG. 1 is a side view of a main part of a motorcycle equipped with an air intake device according to the present invention, FIG. 2 is a partially cutaway plan view of the main part of the motorcycle, and FIG. 3 is a sectional view taken along line III-III of FIG. It is a figure.
図において１はヘッドパイプであり、該ヘッドパイプ
１に回動自在に挿通する不図示のステムシャフトにはフ
ロントフォーク２の上部が結着されており、同フロント
フォーク２の下部には前輪３が回転自在に軸承されてい
る。In the figure, reference numeral 1 denotes a head pipe. An upper portion of a front fork 2 is attached to a stem shaft (not shown) that is rotatably inserted in the head pipe 1, and a front wheel 3 is attached to a lower portion of the front fork 2. It is rotatably supported.
又上記ヘッドパイプ１からは幅広のメインフレーム４
が後方へ二股状を成して延出しており、該メインフレー
ム４にて囲まれる空間内の前後にはエアクリーナ５、燃
料タンク６がそれぞれ配されており、これらエアクリー
ナ５及び燃料タンク６はタンクカバー７によって被われ
ている。そして、このタンクカバー７の後方にはシート
８が配設されている。Also, a wide main frame 4 from the head pipe 1
Extends in a bifurcated shape rearward, and an air cleaner 5 and a fuel tank 6 are arranged in the front and rear of a space surrounded by the main frame 4, and the air cleaner 5 and the fuel tank 6 are tanks. Covered by a cover 7. A seat 8 is arranged behind the tank cover 7.
一方、車体の略中央であって、且つ前記エアクリーナ
５の下方にはエンジン９が搭載されており、該エンジン
９とエアクリーナ５とを結ぶ吸気管10の途中にはキャブ
レタ11が介設されている。そして、車体の前部はフロン
トカウル12にて被われている。On the other hand, an engine 9 is mounted at a substantially central portion of the vehicle body and below the air cleaner 5, and a carburetor 11 is provided in the middle of an intake pipe 10 connecting the engine 9 and the air cleaner 5. . The front part of the vehicle body is covered with a front cowl 12.
ところで、上記フロントカウル12とメインフレーム４
との間には左右２本の吸気ダクト13,13が介設されてい
るが、各吸気ダクト13の前端は車体前方のフロントカウ
ル12表面に開口しており、後端はメインフレーム４内に
配されたエアクリーナ５の前部下側周辺に開口してい
る。又、二股状に分岐するメインフレーム４の後半部の
左右それぞれの内側には、樹脂にてチャンネル状に一体
成形された排気ダクト14,14がビス15…にて取り付けら
れている（第３図参照）。そして、各排気ダクト14の前
端はベルマウス状に成形されてメインフレーム４とタン
クカバー７にて囲まれる空間に開口しており、後端は車
体の左右に形成される三角状の空間Ｓに開口している。
而して、以上の吸気ダクト13,13、排気ダクト14,14等が
本発明に係る空気取入れ装置を構成している。By the way, the front cowl 12 and the main frame 4
Two left and right intake ducts 13, 13 are provided between and, but the front end of each intake duct 13 is open to the front cowl 12 surface in front of the vehicle body, and the rear end is inside the main frame 4. An opening is formed in the vicinity of the lower front portion of the arranged air cleaner 5. Further, exhaust ducts 14, 14 integrally formed in a channel shape with resin are attached by screws 15 on the inside of each of the left and right sides of the rear half of the main frame 4 which branches in a bifurcated shape (see FIG. 3). reference). The front end of each exhaust duct 14 is formed in a bell mouth shape and opens in the space surrounded by the main frame 4 and the tank cover 7, and the rear end thereof is a triangular space S formed on the left and right of the vehicle body. It is open.
Thus, the intake ducts 13, 13 and the exhaust ducts 14, 14 described above constitute the air intake device according to the present invention.
次に空気取入れ装置の作用を説明する。 Next, the operation of the air intake device will be described.
自動二輪車の走行に伴い新気が吸入ダクト13,13の前
端開口部から吸引されるが、この吸引された新気は各吸
入ダクト13を経てメインフレーム４とタンクカバー７に
て囲まれる空間内に導入され、同空間内に配されたエア
クリーナ５の下部壁に沿って流れ、更に排気ダクト14,1
4に沿って抵抗なく円滑に車体左右方向外側へ排出され
るため、エアクリーナ５への新気の流入効率が高められ
る。又、エンジン９からの熱の上昇は、エアクリーナ５
の下部壁に沿って流れる新気のエアカーテン効果によっ
て有効に遮断されるため、エアクリーナ５の加熱が防が
れ、エンジン９の運転条件が変化しても該エンジン９の
安定した出力特性が得られる。As the motorcycle travels, fresh air is sucked from the front end openings of the suction ducts 13 and 13. The sucked fresh air is passed through the suction ducts 13 and is surrounded by the main frame 4 and the tank cover 7. Is introduced into the air cleaner 5 and flows along the lower wall of the air cleaner 5 arranged in the same space.
Since the air is smoothly discharged to the outside in the left-right direction of the vehicle body along the line 4 without any resistance, the efficiency of inflow of fresh air into the air cleaner 5 is improved. Also, the rise of heat from the engine 9 is caused by the air cleaner 5
Since the fresh air flowing along the lower wall of the engine effectively blocks the air, the heating of the air cleaner 5 is prevented, and stable output characteristics of the engine 9 are obtained even if the operating conditions of the engine 9 change. To be
（発明の効果） 以上の説明で明らかな如く本発明によれば、新気をエ
アクリーナまで導入する吸気ダクトの他に、該新気を車
体左右方向外側へ排出するための排気ダクトを設けたた
め、新気がエアクリーナの下部壁に沿って円滑に流れ、
エアクリーナへの新気の流入効率が高められるととも
に、エンジン熱の上昇を効果的に遮断することができる
という効果が得られる。(Effects of the Invention) According to the present invention as apparent from the above description, in addition to the intake duct for introducing fresh air to the air cleaner, the exhaust duct for discharging the fresh air to the outside in the left-right direction of the vehicle body is provided. Fresh air smoothly flows along the lower wall of the air cleaner,
The efficiency of inflowing fresh air into the air cleaner is improved, and the effect of effectively blocking the rise in engine heat is obtained.
第１図は本発明に係る空気取入れ装置を備える自動二輪
車要部の側面図、第２図は同自動二輪車要部の一部破断
平面図、第３図は第１図のIII−III線断面図である。 １……ヘッドパイプ、４……メインフレーム、５……エ
アクリーナ、６……燃料タンク、７……タンクカバー、
13……吸気ダクト、14……排気ダクト。FIG. 1 is a side view of a main part of a motorcycle equipped with an air intake device according to the present invention, FIG. 2 is a partially cutaway plan view of the main part of the motorcycle, and FIG. 3 is a sectional view taken along line III-III of FIG. It is a figure. 1 ... Head pipe, 4 ... Main frame, 5 ... Air cleaner, 6 ... Fuel tank, 7 ... Tank cover,
13 ... Intake duct, 14 ... Exhaust duct.
Claims (1)
メインフレームにて囲まれる空間内の前後にエアクリー
ナ、燃料タンクをそれぞれ配し、これらエアクリーナ及
び燃料タンクをタンクカバーにて被う自動二輪車の空気
取入れ装置において、一端が車体前方に開口し、他端が
前記エアクリーナの前部下側周辺に開口する吸気ダクト
を設けるとともに、一端が前方に開口し、他端が車体左
右方向外側へ開口する排気ダクトを前記メインフレーム
の後半部内側に設けたことを特徴とする自動二輪車の空
気取入れ装置。1. A motorcycle in which an air cleaner and a fuel tank are arranged in front and rear of a space surrounded by a forked main frame extending rearward from a head pipe, and the air cleaner and the fuel tank are covered with a tank cover. In the air intake device, an air intake duct is provided, one end of which is open to the front of the vehicle body and the other end of which is open to the lower front part of the air cleaner, and one end is opened to the front and the other end is opened to the outside in the left-right direction of the vehicle. An air intake device for a motorcycle, wherein an exhaust duct is provided inside the latter half of the main frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62162463A JP2530336B2 (en) | 1987-07-01 | 1987-07-01 | Air intake device for motorcycles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62162463A JP2530336B2 (en) | 1987-07-01 | 1987-07-01 | Air intake device for motorcycles |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS648352A JPS648352A (en) | 1989-01-12 |
| JP2530336B2 true JP2530336B2 (en) | 1996-09-04 |
Family
ID=15755096
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62162463A Expired - Fee Related JP2530336B2 (en) | 1987-07-01 | 1987-07-01 | Air intake device for motorcycles |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2530336B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01164694A (en) * | 1987-12-21 | 1989-06-28 | Honda Motor Co Ltd | Air cleaner device for motorcycle |
| JP3770174B2 (en) * | 2002-02-15 | 2006-04-26 | 株式会社豊田自動織機 | Electromagnetic drive for weft insertion control in looms |
-
1987
- 1987-07-01 JP JP62162463A patent/JP2530336B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPS648352A (en) | 1989-01-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |