JPH0228077A - Intake air introducing device for motorcycle - Google Patents
Intake air introducing device for motorcycleInfo
- Publication number
- JPH0228077A JPH0228077A JP63177435A JP17743588A JPH0228077A JP H0228077 A JPH0228077 A JP H0228077A JP 63177435 A JP63177435 A JP 63177435A JP 17743588 A JP17743588 A JP 17743588A JP H0228077 A JPH0228077 A JP H0228077A
- Authority
- JP
- Japan
- Prior art keywords
- intake
- head pipe
- air
- box
- intake air
- 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.)
- Granted
Links
- 238000002485 combustion reaction Methods 0.000 claims abstract description 9
- 239000002828 fuel tank Substances 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Automatic Cycles, And Cycles In General (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
この発明は、自動二輪車の吸気導入装置に係り、詳しく
は、構造が簡単で吸気効率を向上させる自動二輪車の吸
気導入装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to an intake air introduction device for a motorcycle, and more particularly to an intake air introduction device for a motorcycle that has a simple structure and improves intake efficiency.
［従来の技術］
自動二輪車には吸気導入装置が備えられ、内燃機関の吸
気系に吸気導入ダクトから空気を導入して、吸気効率を
向上させるようにするものがあこの吸気導入装置として
、例えば特願昭６１−２０８２６４号明細書に示される
ように、例えば車体前面を覆うカウリングの先端に吸気
取入口を設け、この吸気取入口と吸気ボックスとを吸気
導入ダクトで接続するものがある。[Prior Art] Motorcycles are equipped with an intake air introduction device, and the intake air introduction device introduces air into the intake system of an internal combustion engine from an intake air introduction duct to improve intake efficiency. As shown in Japanese Patent Application No. 61-208264, for example, there is a vehicle in which an intake port is provided at the tip of a cowling that covers the front of the vehicle body, and this intake port and an intake box are connected by an intake introduction duct.
［発明が解決しようとする課Ｎ］
ところが、カウリングの先端に気取入口を設けると、こ
こから吸気ボックスに接続される吸気導入ダクトの距離
が長くなって、空気抵抗が大きくなる。また、吸気導入
ダクトが外部に出ており、外観を損なうと共に、吸気導
入ダクトが邪魔となり好ましくない。[Problem N to be solved by the invention] However, when the air intake port is provided at the tip of the cowling, the distance of the air intake duct connected from the air intake port to the intake box becomes long, and air resistance becomes large. Moreover, the intake air introduction duct protrudes outside, which is not desirable as it spoils the appearance and becomes an obstruction.
こめ発明はこのような実状に鑑みてなされたもので、構
造が簡単で、しかも吸気抵抗を少なくする自動二輪車の
吸気導入装置を提供することを目的としている。The present invention was made in view of the above-mentioned circumstances, and it is an object of the present invention to provide an intake air introduction device for a motorcycle that has a simple structure and reduces intake resistance.
［課題を解決するための手段］
前記課題を解決するために、この発明は内燃機関の吸気
系に空気を導入する自動二輪車の吸気導入装置において
、前記吸気系の吸気ボックスをヘッドパイプの後方に配
置し、前記へラドバイブの下方に吸気取入口を有し、か
つこのへラドバイブの後方を通る吸気導入ダクトを前記
吸気ボックスに接続したことを特徴としている。[Means for Solving the Problems] In order to solve the above problems, the present invention provides an air intake introduction device for a motorcycle that introduces air into the intake system of an internal combustion engine, in which the intake box of the intake system is placed behind the head pipe. The invention is characterized in that the air intake box has an air intake port below the Hera Vib, and an air intake introduction duct passing behind the Hera Vib is connected to the air intake box.
Ｃ作用コ
この発明では、ヘッドパイプの下方に吸気取入口を有し
、かつこのへラドバイブの後方を通る吸気導入ダクトを
吸気ボックスに接続しているから、吸気取入口から吸気
ボックスに至る吸気導入ダクトを短くすることができる
。このため、空気抵抗が少なくなりで、吸気ボックスに
効率良く空気を供給することが可能となると共に、吸気
導入ダクトが外部から見えない位置に配置され、かつ構
造が簡単である。C Effect: This invention has an intake port below the head pipe, and connects the intake introduction duct that runs behind the head pipe to the intake box, so the intake air is introduced from the intake port to the intake box. The duct can be shortened. Therefore, air resistance is reduced, making it possible to efficiently supply air to the intake box, and the intake introduction duct is arranged at a position where it cannot be seen from the outside, and the structure is simple.
［実施例］
次に、添付図面と共にこの発明の実施例を詳細に説明す
る。[Example] Next, an example of the present invention will be described in detail with reference to the accompanying drawings.
第１図乃至′ｓ４図はこの発明を適用した自動二輪車の
一実施例を示す図である。Figures 1 to 4 are views showing an embodiment of a motorcycle to which the present invention is applied.
図中符号１は自動二輪車であり、フレーム２のヘッドパ
イプ３にはフロントフォーク４を介して前輪５が支持さ
れ、ヘッドパイプ３から後方に延びる左右のメインフレ
ーム６には燃料タンク７が載置されると共に、内燃機関
８が懸架されている。この内燃機関８の吸気系である吸
気ボックス９と気化器１０は、燃料タンク７の下方に凹
部に配置されている。Reference numeral 1 in the figure indicates a motorcycle, in which a front wheel 5 is supported by a head pipe 3 of a frame 2 via a front fork 4, and a fuel tank 7 is mounted on left and right main frames 6 extending rearward from the head pipe 3. At the same time, the internal combustion engine 8 is suspended. An intake box 9 and a carburetor 10, which are an intake system of this internal combustion engine 8, are arranged in a recessed portion below the fuel tank 7.
メインフレーム６の後端のブラケット１１にはシートフ
レーム１２が後方に向けて取付けられ、このシートフレ
ーム１２にシート１３が設けられ、ブラケット１１の下
部にはリヤアーム１４を介して後輪１５が支持されてい
る。A seat frame 12 is attached to the bracket 11 at the rear end of the main frame 6 facing rearward, a seat 13 is provided on the seat frame 12, and a rear wheel 15 is supported at the bottom of the bracket 11 via a rear arm 14. ing.
内燃機関８の前方にはラジェータ１６が設けられ、ヘッ
ドパイプ３の前方から内燃機関８の側方にかけてカウリ
ング１７で覆われている。A radiator 16 is provided in front of the internal combustion engine 8 , and is covered with a cowling 17 from the front of the head pipe 3 to the side of the internal combustion engine 8 .
このカウリング１７の前側中央部には大台な開口部１７
ａが形成されており、走行風を導入してラジェータ１６
や内燃機関８を冷却するようになっている。A large opening 17 is provided in the front center of this cowling 17.
A is formed, and the radiator 16 introduces the running wind.
and the internal combustion engine 8.
前記吸気系の吸気ボックス９はヘッドパイプ３から延び
る左右のメインフレーム６の間で、ヘッドパイプ３の後
方に近接して配置されている。この吸気ボックス９には
ヘッドパイプ３の下方に吸気取入口１８ａを有し、かつ
このへラドバイブ３の後方を通る吸気導入ダクト１８が
接続されている。この吸気導入ダクト１８の吸気取入口
１８ａはラジェータ１６の上方に位置し、この吸気取入
口１８ａの上方にはカウリング１７の前端にかけて吸気
導入板１９が取付けられているにの吸気導入板１９には
左右のフロントフォーク４が貫通され、フロントフォー
ク４が回動を許容する部分に切欠１９ａが形成されてい
る。The intake box 9 of the intake system is arranged close to the rear of the head pipe 3 between the left and right main frames 6 extending from the head pipe 3. The intake box 9 has an intake port 18a below the head pipe 3, and is connected to an intake introduction duct 18 that passes behind the vibrator 3. The intake port 18a of the intake duct 18 is located above the radiator 16, and an intake introduction plate 19 is attached above the intake port 18a to the front end of the cowling 17. A notch 19a is formed in a portion through which the left and right front forks 4 are penetrated and allows the front fork 4 to rotate.
また、吸気導入ダクト１８の吸気ボックス９との接続部
ｔａｂは第４図に示すように、気化器１０の吸気通路１
０ａと平行になフており、吸気ボックス９を矢印方向へ
８動することによフて吸気管の長さを変更することがで
きる。In addition, the connection part tab of the intake air introduction duct 18 with the intake box 9 is connected to the intake passage 1 of the carburetor 10, as shown in FIG.
The length of the intake pipe can be changed by moving the intake box 9 eight times in the direction of the arrow.
従りて、自動二輪車１が走行すると、走行風が前方から
カウリング１７の開口部１フａに入ると、ラジェータ１
６を冷却すると共に、吸気導入板１９を介して吸気取入
口１８ａに導かれる。この空気は吸気導入ダクト１８を
介して吸気ボックス９に導入される。Therefore, when the motorcycle 1 runs, when the running wind enters the opening 1a of the cowling 17 from the front, the radiator 1
6 is cooled and guided to the intake air intake port 18a via the intake air introduction plate 19. This air is introduced into the intake box 9 via the intake air introduction duct 18.
この吸気導入ダクト１８の吸気取入口１８ａをヘッドパ
イプ３の下方に配置し、この吸気導入ダクト１８をヘッ
ドパイプ３の後方を通過させて吸気ボックス９に接続さ
れており、これにより吸気取入口１８ａが吸気ボックス
９の近くなり、吸気導入ダクト１８を短縮することがで
きる。このため、吸気導入ダクト１８の空気抵抗が軽減
でき、吸気ボックス９に多量の空気を供給することが可
能となる。The air intake port 18a of this air intake introduction duct 18 is arranged below the head pipe 3, and the air intake air introduction duct 18 is connected to the air intake box 9 by passing behind the head pipe 3, so that the air intake port 18a is closer to the intake box 9, and the intake introduction duct 18 can be shortened. Therefore, the air resistance of the intake air introduction duct 18 can be reduced, and a large amount of air can be supplied to the intake box 9.
また、吸気導入ダクト１８の吸気取入口１８ａはカウリ
ング１フの開口部１７ａの中央部で、ラジェータ１６の
上方であるため、この位置は走行時に外気が導入されや
すい部分である。Furthermore, since the air intake port 18a of the air intake duct 18 is in the center of the opening 17a of the cowling 1f and above the radiator 16, this position is a part where outside air is easily introduced during driving.
さらに、吸気導入ダクト１８は左右のメインフレーム６
の間を通過させて配置されているから、車体の内部に収
納され、外部から吸気導入ダクト１８が隠れ体裁が良い
と共に邪魔にならない。Furthermore, the intake air introduction duct 18 is connected to the left and right main frames 6.
Since it is arranged so as to pass between the two, it is housed inside the vehicle body, and the intake introduction duct 18 is well hidden from the outside and does not get in the way.
第５図及び第６図は吸気導入装置の３４２実施例を示す
図である。この実施例の吸気導入装置は第１実施例にお
ける吸気導入ダクト１８に加えて、この吸気導入ダクト
１８の左右側方にそれぞれ補助吸気導入ダクト２０を設
け、この吸気取入口２０ａを吸気取入口１８ａから略フ
ロントフォーク４の直径分だけ隔てて設けたものであり
、吸気ボックス９側の接続部２０ｂは集合して接続され
る。また、吸気導入板２１は幅広に形成され、同様な切
欠２１ａが形成されている。FIGS. 5 and 6 are diagrams showing 342 embodiments of the intake air introduction device. In addition to the intake air introduction duct 18 in the first embodiment, the intake air introduction device of this embodiment is provided with auxiliary intake air introduction ducts 20 on the left and right sides of this intake air introduction duct 18, and this air intake port 20a is connected to the intake air intake port 18a. The connecting portions 20b on the side of the intake box 9 are connected together. Further, the intake air introduction plate 21 is formed wide and has a similar notch 21a formed therein.
［発明の効果コ
以上説明したように、この発明は吸気系の吸気ボックス
をヘッドパイプの後方に配置し、ヘッドパイプの下方に
吸気取入口を有し、かつこのヘッドパイプの後方を通る
吸気導入ダクトを吸気ボックスに接続したから、吸気導
入ダクトを短縮することができ、このため空気抵抗が少
なくなって、吸気ボックスに効率良く空気を供給するこ
とが可能となると共に、吸気導入ダクトが外部から見え
ない位置に配置され、かつ構造が簡単である。[Effects of the Invention] As explained above, the present invention has the intake box of the intake system located behind the head pipe, has an intake port below the head pipe, and has an intake box that passes through the rear of the head pipe. Since the duct is connected to the intake box, the intake introduction duct can be shortened, reducing air resistance and making it possible to efficiently supply air to the intake box. It is placed in an invisible position and has a simple structure.
第１図はこの発明の吸気導入装置を備えた自動二輪車の
側面図、第２図はその正面図、３１Ｅ３図はその平面図
、第４図は要部を示す側面図、第５図は他の実施例を示
す正面図、第６図はその平面図である。
図中符号１は自動二輪車、２はフレーム、３はヘッドパ
イプ、６はメインフレーム、９は吸気ボックス、１８．
２０は吸気導入ダクトに、１８ａ、２０ａは吸気取入口
、１９．２１は吸気導入板である。
特 許 １）願 人 ヤマハ発動機株式会社第
因
第
図
第
図
第
図Fig. 1 is a side view of a motorcycle equipped with an air intake introduction device of the present invention, Fig. 2 is a front view thereof, Fig. 31E3 is a plan view thereof, Fig. 4 is a side view showing the main parts, and Fig. 5 is another view. FIG. 6 is a front view showing an embodiment of the present invention, and FIG. 6 is a plan view thereof. In the figure, 1 is a motorcycle, 2 is a frame, 3 is a head pipe, 6 is a main frame, 9 is an intake box, 18.
20 is an intake air introduction duct, 18a and 20a are intake ports, and 19.21 is an intake air introduction plate. Patent 1) Applicant: Yamaha Motor Co., Ltd.
Claims (1)
入装置において、前記吸気系の吸気ボックスをヘッドパ
イプの後方に配置し、前記ヘッドパイプの下方に吸気取
入口を有し、かつこのヘッドパイプの後方を通る吸気導
入ダクトを前記吸気ボックスに接続した自動二輪車の吸
気導入装置。In an air intake introduction device for a motorcycle that introduces air into an intake system of an internal combustion engine, an intake box of the intake system is arranged behind a head pipe, an intake port is provided below the head pipe, and the head pipe An intake air introduction device for a motorcycle, which connects an intake air introduction duct passing behind the intake box to the intake box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63177435A JP2819291B2 (en) | 1988-07-15 | 1988-07-15 | Motorcycle intake air intake system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63177435A JP2819291B2 (en) | 1988-07-15 | 1988-07-15 | Motorcycle intake air intake system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0228077A true JPH0228077A (en) | 1990-01-30 |
| JP2819291B2 JP2819291B2 (en) | 1998-10-30 |
Family
ID=16030895
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63177435A Expired - Fee Related JP2819291B2 (en) | 1988-07-15 | 1988-07-15 | Motorcycle intake air intake system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2819291B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5306085A (en) * | 1991-12-03 | 1994-04-26 | Mitsubishi Pencil Kabushiki Kaisha | Multiplex writing implement with eraser |
| US5890825A (en) * | 1994-07-22 | 1999-04-06 | Kotobuki & Co., Ltd. | Composite writing instrument |
| US7407179B2 (en) * | 2005-03-31 | 2008-08-05 | Honda Motor Co., Ltd. | Saddle-ride type vehicle |
| WO2019059257A1 (en) * | 2017-09-21 | 2019-03-28 | 本田技研工業株式会社 | Saddle-riding type vehicle |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61117082U (en) * | 1985-01-08 | 1986-07-24 | ||
| JPS61145091U (en) * | 1985-03-01 | 1986-09-06 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2523721Y2 (en) | 1988-04-26 | 1997-01-29 | 本田技研工業株式会社 | Motorcycle engine intake system |
-
1988
- 1988-07-15 JP JP63177435A patent/JP2819291B2/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61117082U (en) * | 1985-01-08 | 1986-07-24 | ||
| JPS61145091U (en) * | 1985-03-01 | 1986-09-06 |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5306085A (en) * | 1991-12-03 | 1994-04-26 | Mitsubishi Pencil Kabushiki Kaisha | Multiplex writing implement with eraser |
| US5890825A (en) * | 1994-07-22 | 1999-04-06 | Kotobuki & Co., Ltd. | Composite writing instrument |
| US7407179B2 (en) * | 2005-03-31 | 2008-08-05 | Honda Motor Co., Ltd. | Saddle-ride type vehicle |
| WO2019059257A1 (en) * | 2017-09-21 | 2019-03-28 | 本田技研工業株式会社 | Saddle-riding type vehicle |
| JPWO2019059257A1 (en) * | 2017-09-21 | 2020-07-30 | 本田技研工業株式会社 | Saddle type vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2819291B2 (en) | 1998-10-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100593075C (en) | Exhaust system for motorcycle | |
| JPH05112271A (en) | Air duct of motorcycle | |
| JP2015098220A (en) | Intake duct device of motor cycle | |
| JP3841258B2 (en) | Engine with injector soundproof cover | |
| JPH0228077A (en) | Intake air introducing device for motorcycle | |
| JP4028691B2 (en) | Motorcycle cowling structure | |
| US8042521B2 (en) | Engine unit and vehicle provided with the same | |
| JP4180728B2 (en) | Motorcycle leg shield | |
| JP3836224B2 (en) | Motorcycle cowling device | |
| JP3552498B2 (en) | Motorcycle electrical component mounting structure | |
| JP3511296B2 (en) | Cooling air introduction structure for motorcycles | |
| JPH09209861A (en) | Intake device for internal combustion engine | |
| JPH06221238A (en) | Intake device for motorcycle | |
| JP4383002B2 (en) | Rear fender structure of motorcycle | |
| JP3727641B2 (en) | Motorcycle exhaust system | |
| JP3120997B2 (en) | Engine intake system layout structure for motorcycles | |
| JP2002002573A (en) | Intake device of engine for motorcycle | |
| JPH0646789Y2 (en) | Motorcycle | |
| JPH043917Y2 (en) | ||
| JP2668783B2 (en) | Motorcycle | |
| JPH0343116Y2 (en) | ||
| JPS62265083A (en) | Cowling device for motorcycle | |
| JPH01275288A (en) | Motorcycle | |
| JPH01111590A (en) | Air introducing device for motorcycle | |
| WO2011129316A1 (en) | Fuel injection device for engine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| LAPS | Cancellation because of no payment of annual fees |