JPH0474232B2 - - Google Patents
Info
- Publication number
- JPH0474232B2 JPH0474232B2 JP59271452A JP27145284A JPH0474232B2 JP H0474232 B2 JPH0474232 B2 JP H0474232B2 JP 59271452 A JP59271452 A JP 59271452A JP 27145284 A JP27145284 A JP 27145284A JP H0474232 B2 JPH0474232 B2 JP H0474232B2
- Authority
- JP
- Japan
- Prior art keywords
- tank
- air
- main frame
- bottom wall
- fuel tank
- 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 - Lifetime
Links
- 238000001914 filtration Methods 0.000 claims description 26
- 239000002828 fuel tank Substances 0.000 claims description 25
- 239000006096 absorbing agent Substances 0.000 claims description 13
- 230000035939 shock Effects 0.000 claims description 13
- 239000000446 fuel Substances 0.000 claims description 3
- 210000003127 knee Anatomy 0.000 description 4
- 230000007423 decrease Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000006200 vaporizer Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011499 joint compound Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K13/00—Arrangement in connection with combustion air intake or gas exhaust of propulsion units
- B60K13/02—Arrangement in connection with combustion air intake or gas exhaust of propulsion units concerning intake
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- 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、前後車輪間に位置するエンジンの上
方に単一の主フレームを備え、該主フレームを跨
つて断面逆Ｕ字状燃料タンクが配設された自動二
輪車における吸気装置に関するものである。[Detailed Description of the Invention] Industrial Application Field The present invention comprises a single main frame above the engine located between the front and rear wheels, and a fuel tank having an inverted U-shaped cross section is disposed astride the main frame. The present invention relates to an intake device for a motorcycle.
従来技術
前後車輪間に位置したエンジンの上方に単一の
主フレームを備え、該主フレームを跨つて断面逆
Ｕ字状燃料タンクを配設した従来の自動二輪車に
おいて、エンジンと燃料タンクとを接近させるた
めに、燃料タンクの前部下方に左右１対の空気清
浄器ケースを主フレームの左右に振り分けて配設
したものがあつた（特開昭59−137216号公報参
照）。Prior Art In a conventional motorcycle, which has a single main frame above the engine located between the front and rear wheels, and a fuel tank with an inverted U-shaped cross section straddling the main frame, the engine and fuel tank are placed close to each other. In order to do this, a pair of left and right air purifier cases were placed below the front of the fuel tank, distributed between the left and right sides of the main frame (see Japanese Patent Laid-Open No. 137216/1983).
解決しようとする課題
前記した自動二輪車においては、燃料タンクの
前部下方に空気清浄器を配置したため、前方から
飛来する雨水や前輪で跳上げられた泥水や土砂等
の異物から濾過要素を保護しなければならないの
で、空気清浄器ケースを別途に必要として吸気装
置が大形化してしまい、また該空気清浄器ケース
の後部から吸入して濾過要素を通過した外気を主
フレーム内に導き、この主フレームの下方開口か
ら気化器に外気を供給するようになつているた
め、吸気通路が複雑化して吸気抵抗が増大し、さ
らに主フレームに吸気通路を構成するために設け
られた開口によつて主フレームの強度、剛性の低
下が逸れずしかも吸気装置のレアウトに大きな制
約があつた。Problems to be Solved In the above-mentioned motorcycle, the air purifier is placed below the front of the fuel tank, which protects the filtration element from rainwater flying from the front and foreign matter such as muddy water and dirt thrown up by the front wheels. Therefore, an air purifier case is required separately, which increases the size of the intake device.Also, the outside air that has been sucked in from the rear of the air purifier case and passed through the filter element is guided into the main frame. Since outside air is supplied to the carburetor from the lower opening of the frame, the intake passage becomes complicated and intake resistance increases.Furthermore, the opening provided in the main frame to form the intake passage increases the The strength and rigidity of the frame continued to decline, and there were significant restrictions on the layout of the intake system.
また前記自動二輪車において、後部外壁面には
エンジンで加熱された空気が当り、ニーグリツプ
が熱くなる。 Furthermore, in the motorcycle, air heated by the engine hits the rear outer wall surface, causing the knee grip to become hot.
課題を解決するための手段および作用効果
本発明は、前記難点を克服した自動二輪車の吸
気装置の改良に係り、前後車輪間に位置するエン
ジンの上方に単一の主フレームを備え、燃料タン
ク内の燃料充填室間の横断面形状が厚肉逆Ｕ字状
となるように、逆Ｕ字状横断面状のタンク底壁の
下縁と、該タンク底壁より大きな逆Ｕ字状横断面
状のタンク頂壁の下縁とを相互に一体に接合して
なる燃料タンクが前記主フレームを跨つて配設さ
れた自動二輪車において、後車輪を支持する後部
緩衝器の上端が前記主フレームの後端に取付けら
れ、空気清浄器は、濾過要素外方の空気を濾過し
該濾過要素内の清浄空気をエンジンの吸気部に導
入する外方濾過型空気清浄器であつて、前記主フ
レームより上方でかつ前記タンク底壁後部の下面
より下方に位置した濾過要素と、前記後部緩衝器
より後方でかつ前記タンク底壁後部の下面より下
方に位置して前記濾過要素の内部空間に連通する
空気槽とよりなり、前記燃料タンクのタンク底壁
に挟まれたエンジンのシリンダの吸気部と前記空
気槽とを連通する２本の連結管は、前記後部緩衝
器を挟んで左右に振り分けられて配設されるとと
もに円滑湾曲形状に形成されたことを特徴とする
ものである。Means and Effects for Solving the Problems The present invention relates to an improvement of an intake system for a motorcycle that overcomes the above-mentioned difficulties, and includes a single main frame above the engine located between the front and rear wheels, and a fuel tank inside the fuel tank. The lower edge of the tank bottom wall with the inverted U-shaped cross section and the inverted U-shaped cross section larger than the tank bottom wall so that the cross-sectional shape between the fuel filling chambers is thick-walled and inverted U-shaped. In a motorcycle in which a fuel tank formed by integrally joining the lower edges of the top walls of the tank is disposed astride the main frame, the upper end of the rear shock absorber supporting the rear wheel is located behind the main frame. The air purifier is an external filtration type air purifier that filters the air outside the filtration element and introduces the clean air inside the filtration element into the intake part of the engine. a filtration element located below the lower surface of the rear part of the tank bottom wall; and an air tank located behind the rear shock absorber and below the lower surface of the rear part of the tank bottom wall and communicating with the internal space of the filtration element. Therefore, the two connecting pipes that communicate the air tank with the intake part of the engine cylinder sandwiched between the tank bottom wall of the fuel tank are distributed to the left and right with the rear shock absorber in between. It is characterized by being formed into a smoothly curved shape.
本発明では、空気清浄器は、濾過要素外方の空
気を濾過し該濾過要素内の清浄空気をエンジンの
吸気部に導入する外方濾過型空気清浄器であつ
て、前記濾過要素は、主フレームより上方でかつ
逆Ｕ字状横断面状のタンク底壁後部の下面より下
方に配置されているため、該濾過要素の少なくと
も一部は該タンク底壁後部で覆われ、濾過要素を
囲む特別な空気清浄器ケーシングを必要とせず、
空気清浄器の構造が簡単となつて、軽量化とコス
トダウンを図ることができる。 In the present invention, the air purifier is an external filtration type air purifier that filters the air outside the filtration element and introduces the clean air inside the filtration element into the intake part of the engine, and the filtration element is mainly The filtration element is disposed above the frame and below the lower surface of the rear part of the tank bottom wall having an inverted U-shaped cross section, so that at least a portion of the filtration element is covered by the rear part of the tank bottom wall, and a special Does not require a special air purifier casing,
The structure of the air purifier is simplified, making it possible to reduce weight and cost.
また本発明においては、後車輪を支持する後部
緩衝器の上端を前記主フレームの後端に取付け、
前記濾過要素の内部空間に連通する空気槽を前記
後部緩衝器より後方でかつ前記タンク底壁後部の
下面より下方に配置し、前記燃料タンクのタンク
底壁に挟まれたエンジンのシリンダの吸気部と前
記空気槽とを２本の連結管で連通し、該２本の連
結管を前記後部緩衝器を挟んで左右に振り分けた
ため、前記燃料タンクのタンク頂壁後部の外面で
形成されている巾狭のニーグリツプ部内で、車巾
中央に位置した主フレームと後部緩衝器とに干渉
されずに主フレームより上方の濾過要素の内部空
間に連通しかつ後部緩衝器の後方の空気槽と主フ
レームより下方のエンジンのシリンダの吸気部と
を連結管で接続連通して、吸気装置をコンパクト
に形成でき、その結果、エンジンと燃料タンクと
を確実に接近させて、車体を小型化することがで
きる。 Further, in the present invention, the upper end of the rear shock absorber that supports the rear wheels is attached to the rear end of the main frame,
An air tank communicating with the internal space of the filter element is arranged behind the rear shock absorber and below the lower surface of the rear part of the tank bottom wall, and an intake part of the cylinder of the engine is sandwiched between the tank bottom wall of the fuel tank. and the air tank are connected through two connecting pipes, and the two connecting pipes are distributed to the left and right with the rear shock absorber in between, so that the width formed by the outer surface of the rear part of the tank top wall of the fuel tank is The narrow knee grip part communicates with the internal space of the filtration element above the main frame without being interfered with by the main frame located at the center of the vehicle width and the rear shock absorber, and from the air tank behind the rear shock absorber and the main frame. The intake device can be formed compactly by connecting and communicating with the intake part of the cylinder of the lower engine through a connecting pipe, and as a result, the engine and the fuel tank can be reliably brought close together, and the vehicle body can be downsized.
さらに本発明では、前記したように吸気装置を
コンパクトに形成しても、主フレームに吸気通路
を構成するための開口を設ける必要がないので、
主フレームの強度、剛性の低下を避けることがで
き、しかも、濾過要素を狭いケースに収納するこ
となく、逆Ｕ字状横断面形状の燃料タンク底壁後
部の下面の比較的余裕のある空間内に濾過要素を
配置し、吸気通路の横断面積を急激に変化させず
に、滑らかな湾曲形状の連結管内に吸入空気を通
過させたため、吸気抵抗を低くして、吸気効率
を、高い水準に維持することができる。 Furthermore, in the present invention, even if the intake device is formed compactly as described above, there is no need to provide an opening for configuring the intake passage in the main frame.
It is possible to avoid a decrease in the strength and rigidity of the main frame, and also to store the filtration element in a relatively spacious space under the rear of the bottom wall of the fuel tank, which has an inverted U-shaped cross section. A filter element is placed in the intake passageway, allowing intake air to pass through the smoothly curved connecting pipe without abruptly changing the cross-sectional area of the intake passage.This reduces intake resistance and maintains intake efficiency at a high level. can do.
さらにまた本発明においては、燃料タンクのタ
ンク頂壁後部の外面で形成されているニーグリツ
プ部の内方近傍に濾過要素を配置したため、該濾
過要素に吸入される空気でもつて前記ニーグリツ
プ部を低温に保持することができる。 Furthermore, in the present invention, since the filtering element is disposed near the inside of the knee grip formed on the outer surface of the rear part of the tank top wall of the fuel tank, the air sucked into the filtering element can also keep the knee grip at a low temperature. can be retained.
実施例
以下、第１図ないし第６図に図示した本発明の
一実施例について説明する。Embodiment Hereinafter, an embodiment of the present invention illustrated in FIGS. 1 to 6 will be described.
第１図は、不整地走行用自動二輪車１０を示し
ており、エンジンＥが、前車輪FW、後車輪RW
間に配設され、かつエンジンＥの頭部を側方から
覆う程度に大きな燃料タンク２０が、主フレーム
１２を跨いで配設されている。主フレーム１２の
後端部には、左右一対のセンター・ピラー１４が
連なり、かつ車体幅方向中央に位置する後部緩衝
器１６の上端が連結されている（第１図、第２図
参照）。 FIG. 1 shows a motorcycle 10 for traveling on rough terrain, in which an engine E is operated for the front wheel FW and the rear wheel RW.
A fuel tank 20, which is large enough to cover the head of the engine E from the side, is disposed in between and straddles the main frame 12. A pair of left and right center pillars 14 are connected to the rear end of the main frame 12, and the upper end of a rear shock absorber 16 located at the center in the vehicle width direction is connected (see FIGS. 1 and 2).
前記燃料タンク２０は、その後部頂壁２２に、
左右１対の窓２４，２４を有しており、それ故、
その部分には、燃料貯溜室が形成されておらず、
前部から頂壁２２が伸長しているだけであつて、
底壁は存在しない。（第３図参照）。 The fuel tank 20 has, on its rear top wall 22,
It has a pair of left and right windows 24, 24, and therefore,
No fuel storage chamber is formed in that part,
Only the top wall 22 extends from the front part,
There is no bottom wall. (See Figure 3).
また、燃料タンク２０は、その前部に突設され
た左右１対の係止突起２６，２６を、車体フレー
ム側の左右１対のＵ字形支持片（図示せず）に係
合させるとともに後端の鍔２８部を螺子をもつて
車体フレームに固定することによつて、不動に固
定される。座席Ｓは、その前端部が伸長して、窓
２４，２４の一部を覆つている。 Further, the fuel tank 20 has a pair of left and right locking protrusions 26, 26 protruding from the front portion of the fuel tank 20, which are engaged with a pair of left and right U-shaped support pieces (not shown) on the vehicle body frame side. It is immovably fixed by fixing the end flange 28 to the vehicle body frame with screws. The front end of the seat S extends to partially cover the windows 24, 24.
そして、左右の窓２４，２４に臨んで、頂壁２
２内に１対の空気浄器の濾過要素３０，３０がそ
れぞれ配設されている。濾過要素３０，３０は、
その後壁３４部にて後記空気槽５０に固定（螺子
３５による）された遮蔽板たる遮熱板３２および
空気槽５０によつて支持され、かつそのいずれも
空気槽５０に連通している。遮熱板３２は、後壁
３４の他に、前部突片３６，３６に揺動自在に支
持され、その中間部にゴム製抑え部片４０を備え
た左右１対の針金製押圧ばね３８とを有してお
り、空気槽５０の前壁５２に形成された１対の開
口に嵌合固着された環状金具と一体の突部片５
３，５３に揺動自在に支持された針金製コ字状止
め金５３Ａ，５３Ａを、押圧ばね３８の弾発力に
抗して、該押圧ばね３８の屈曲形状の先端部に係
止させることにより、濾過要素３０は、抑え部片
４０にて抑えられ不動に固定される。（第４図な
いし第６図参照）。 Then, facing the left and right windows 24, 24, the top wall 2
A pair of air purifier filtration elements 30, 30 are disposed within the air purifier 2, respectively. The filter elements 30, 30 are
Thereafter, it is supported by a heat shield plate 32, which is a shielding plate, fixed to an air tank 50 (by screws 35), which will be described later, at the wall 34 portion, and an air tank 50, both of which communicate with the air tank 50. In addition to the rear wall 34, the heat shield plate 32 is swingably supported by the front projecting pieces 36, 36, and has a pair of left and right wire pressing springs 38 with a rubber restraining piece 40 in the middle thereof. and a protrusion piece 5 integrated with an annular metal fitting that is fitted and fixed to a pair of openings formed in the front wall 52 of the air tank 50.
3 and 53 in a manner that allows the wire U-shaped stoppers 53A and 53A to be latched to the bent tip portions of the pressure springs 38 against the elastic force of the pressure springs 38. As a result, the filter element 30 is held down by the holding piece 40 and fixed immovably. (See Figures 4 to 6).
また、該遮熱板３２は、濾過要素３０，３０を
下から覆い、窓２４，２４を上方から覆うカバー
２５および頂壁２２と協働して空気洗浄器箱を画
成する。なお、カバー２５は樹脂製であつて、中
央部に２条の平行な屈曲自在部２５ａが形成され
ており、各屈曲自在部２５ａに沿つてカバー２５
を傾動させると各窓２４が開放される様な構成に
なされている。 The heat shield 32 also cooperates with the cover 25 and the top wall 22, which cover the filter elements 30, 30 from below and cover the windows 24, 24 from above, to define an air purifier box. Note that the cover 25 is made of resin, and has two parallel bendable parts 25a formed in the center, and the cover 25 is formed along each bendable part 25a.
The structure is such that each window 24 is opened when the window is tilted.
さらに車体側方から見てほぼ三角形状になさ
れ、その前壁５２に前記１対の濾過要素３０，３
０が螺着固定された空気槽５０が、主フレーム１
２の後端に隣接して車体フレーム側部材に固定さ
れている。空気槽５０の底壁５４には、左右１対
の固定金具５６が取着されており、この固定金具
５６部および前記突部片５３と一体の固定片５３
Ｂ部において、空気槽５０が、車体フレーム側部
材に固定されるのである。 Further, it has a substantially triangular shape when viewed from the side of the vehicle body, and the pair of filter elements 30, 3 are attached to the front wall 52 of the triangular shape when viewed from the side of the vehicle body.
The air tank 50 to which 0 is screwed and fixed is attached to the main frame 1.
2, and is fixed to the vehicle body frame side member adjacent to the rear end of the vehicle body frame. A pair of left and right fixing fittings 56 are attached to the bottom wall 54 of the air tank 50, and the fixing fittings 56 and the fixing piece 53 integral with the protrusion piece 53 are attached to the bottom wall 54 of the air tank 50.
At part B, the air tank 50 is fixed to the vehicle body frame side member.
前記底壁５４に形成された左右１対の開口に
は、ゴム製Ｌ字状連結管６０，６０の一端部が連
通、嵌着されており、主フレーム１２に連なる後
部緩衝器１６がそれ等の間に位置する。該連結管
６０，６０の他端部は、エンジンＥの吸気ポート
に連なる左右１対の気化器７０に連通、接続され
ている。このように、連結管６０および空気槽５
０によつて気化器７０に連結された濾過要素３０
は、気化器７０の上方に位置している（第２図、
第４図、第５図参照）
本実施例においては、前記のように主フレーム
１２よりも上位に位置して、１対の濾過要素３０
を配設したため、従来の濾過要素に比して大きな
吸気表面積を得ることができ、吸入空気抵抗を低
減化し得るとともにその表面積を従来の濾過要素
と同等にするならば、濾過要素の占有空間が少な
くなり、空間利用効率が向上する。 One end portions of rubber L-shaped connecting pipes 60, 60 are communicated with and fitted into a pair of left and right openings formed in the bottom wall 54, and the rear shock absorber 16 connected to the main frame 12 is connected to the left and right openings. located between. The other ends of the connecting pipes 60, 60 are communicated with and connected to a pair of left and right carburetors 70 connected to the intake port of the engine E. In this way, the connecting pipe 60 and the air tank 5
filtration element 30 connected to vaporizer 70 by
is located above the carburetor 70 (Fig. 2,
(See FIGS. 4 and 5) In this embodiment, as described above, a pair of filter elements 30 are located above the main frame 12.
, it is possible to obtain a larger intake surface area compared to conventional filtration elements, reduce intake air resistance, and if the surface area is made equal to that of conventional filtration elements, the space occupied by the filtration element will be reduced. This reduces space usage efficiency.
また、吸気通路中に空気槽５０を配設すること
により、上下に位置する濾過要素３０と気化器７
０を無理なく連結することができ、空気清浄器を
気化器の後方に配設する従来方式に比して車両設
計の自由度が向上する。 In addition, by disposing the air tank 50 in the intake passage, the filter element 30 and the vaporizer 7 located above and below
0 can be connected without difficulty, and the degree of freedom in vehicle design is improved compared to the conventional system in which the air purifier is disposed behind the carburetor.
さらに、濾過要素３０が収納された燃料タンク
２０の後部空間に対し、燃料タンク２０の底壁と
遮熱板３２の間から空気が進入するようになされ
ており、その位置は、後車輪RWから大きく離隔
し、前車輪FWとの間にエンジンＦの頭部が存在
して遮蔽体になる位置であるから、前後車輪によ
つて跳ね上げられた泥、埃、水等の到達し難く、
空気進入用開口が大きくしても濾過要素３０が汚
染され難い。しかも、空気進入用開口が大きくな
れば、その分だけ進入空気の流速が小さくなる理
屈であるから、この点においても、濾過要素３０
が汚れ難く、整備の手間を省くことができる。 Further, air enters the rear space of the fuel tank 20 in which the filtration element 30 is housed from between the bottom wall of the fuel tank 20 and the heat shield plate 32, and its position is from the rear wheel RW. Since the head of the engine F is located far apart from the front wheels FW and serves as a shield, it is difficult for mud, dust, water, etc. thrown up by the front and rear wheels to reach the front wheels.
Even if the air entry opening is made larger, the filter element 30 is less likely to be contaminated. Moreover, the theory is that the larger the air inlet opening, the smaller the flow velocity of the incoming air.
It is hard to get dirty and can save you the trouble of maintenance.
第１図は本考案の一実施例に係る吸気洗清器を
備えた自動二輪車の側面図、第２図はその要部概
略拡大図、第３図は該自動二輪車に搭載した燃料
タンクの裏面図、第４図は該自動二輪車における
吸気装置の要部側面図、第５図、第６図はそれぞ
れ第４図におけるＶ−Ｖ線、−線要部矢視図
である。
１０……自動二輪車、１２……主フレーム、１
４……センター・ピラ、１６……後部緩衝器、２
０……燃料タンク、２２……頂壁、２４……窓、
２５……カバー、２６……係止突起、２８……
鍔、３０……濾過要素、３２……遮熱板、３４…
…後壁，３５……螺子、３６……突片、３８……
押圧ばね、４０……抑え部片、５０……空気槽、
５２……前壁、５４……底壁、５６……固定金
具、６０……連結管、７０……気化器。
Fig. 1 is a side view of a motorcycle equipped with an intake air cleaner according to an embodiment of the present invention, Fig. 2 is a schematic enlarged view of its main parts, and Fig. 3 is the back side of a fuel tank mounted on the motorcycle. FIG. 4 is a side view of a main part of the intake device in the motorcycle, and FIGS. 5 and 6 are views taken along the V-V line and the - line arrow in FIG. 4, respectively. 10...Motorcycle, 12...Main frame, 1
4... Center pillar, 16... Rear shock absorber, 2
0...Fuel tank, 22...Top wall, 24...Window,
25... Cover, 26... Locking protrusion, 28...
Tsuba, 30... Filter element, 32... Heat shield plate, 34...
...Rear wall, 35...Screw, 36...Protrusion, 38...
Pressing spring, 40... holding piece, 50... air tank,
52...front wall, 54...bottom wall, 56...fixing metal fittings, 60...connecting pipe, 70...carburizer.
Claims (1)
の主フレームを備え、燃料タンク内の燃料充填空
間の横断面形状が厚肉逆Ｕ字状となるように、逆
Ｕ字状横断面状のタンク底壁の下縁と、該タンク
底壁より大きな逆Ｕ字状横断面状のタンク頂壁の
下縁とを相互に一体に接合してなる燃料タンクが
前記主フレームを跨つて配設された自動二輪車に
おいて、 後車輪を支持する後部緩衝器の上端が前記主フ
レームの後端に取付けられ、空気清浄器は、濾過
要素外方の空気を濾過し該濾過要素内の清浄空気
をエンジンの吸気部に導入する外方濾過型空気清
浄器であつて、前記主フレームより上方でかつ前
記タンク底壁後部の下面より下方に位置した濾過
要素と、前記後部緩衝器より後方でかつ前記タン
ク底壁後部の下面より下方に位置して前記濾過要
素の内部空間に連通する空気槽とよりなり、前記
燃料タンクのタンク底壁に狭まれたエンジンのシ
リンダの吸気部と前記空気槽とを連通する２本の
連結管は、前記後部緩衝器を挟んで左右の振り分
けられて配設されるとともに円滑湾曲形状に形成
されたことを特徴とする自動二輪車の吸気装置。[Scope of Claims] 1. A single main frame above the engine located between the front and rear wheels, and an inverted U frame so that the cross-sectional shape of the fuel filling space in the fuel tank has a thick inverted U shape. The fuel tank is formed by integrally joining the lower edge of the tank bottom wall with a letter-shaped cross section and the lower edge of the tank top wall with an inverted U-shaped cross section larger than the tank bottom wall, and the fuel tank is formed by the main frame. In a motorcycle installed across the main frame, the upper end of the rear shock absorber that supports the rear wheel is attached to the rear end of the main frame, and the air cleaner filters the air outside the filtration element and inside the filtration element. An external filtration type air cleaner that introduces clean air into the intake section of the engine, the filter element being located above the main frame and below the lower surface of the rear part of the tank bottom wall, and an air tank located at the rear and below the lower surface of the rear part of the tank bottom wall and communicating with the internal space of the filtration element; An air intake device for a motorcycle, characterized in that the two connecting pipes communicating with the air tank are disposed on left and right sides with the rear shock absorber in between, and are formed into a smoothly curved shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59271452A JPS61150826A (en) | 1984-12-22 | 1984-12-22 | Air cleaner of motorcycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59271452A JPS61150826A (en) | 1984-12-22 | 1984-12-22 | Air cleaner of motorcycle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61150826A JPS61150826A (en) | 1986-07-09 |
| JPH0474232B2 true JPH0474232B2 (en) | 1992-11-25 |
Family
ID=17500220
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59271452A Granted JPS61150826A (en) | 1984-12-22 | 1984-12-22 | Air cleaner of motorcycle |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61150826A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0741855B2 (en) * | 1984-12-24 | 1995-05-10 | ヤマハ発動機株式会社 | Intake device for motorcycles |
| JP3059177B2 (en) * | 1988-11-09 | 2000-07-04 | ヤマハ発動機株式会社 | Air cleaner for saddle-ride type vehicles such as motorcycles |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59137216A (en) * | 1983-01-25 | 1984-08-07 | Yamaha Motor Co Ltd | Motorcycle |
-
1984
- 1984-12-22 JP JP59271452A patent/JPS61150826A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59137216A (en) * | 1983-01-25 | 1984-08-07 | Yamaha Motor Co Ltd | Motorcycle |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61150826A (en) | 1986-07-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4484651A (en) | Air intake system for motorized cycles | |
| JP3889214B2 (en) | Vehicle fuel supply system | |
| JP3569809B2 (en) | Motorcycle air cleaner | |
| JP4145379B2 (en) | Scooter type vehicle intake system | |
| JPH0474232B2 (en) | ||
| WO2003001048A1 (en) | Air cleaner structure of motorcycle | |
| KR960003692B1 (en) | Air intake apparatus of motor cycle | |
| JPS6358149B2 (en) | ||
| JP3470388B2 (en) | Motorcycle air cleaner | |
| CN103967659B (en) | Air filter of internal combustion engine for saddle type vehicle | |
| JPS647118Y2 (en) | ||
| JP3393689B2 (en) | Suction type vehicle intake system | |
| JPS6219504Y2 (en) | ||
| JPS60121119A (en) | Air cleaner for motorcycle | |
| JPS6224786Y2 (en) | ||
| JPH03193583A (en) | Intake system for vehicle | |
| JPH0420713Y2 (en) | ||
| JPS6345428Y2 (en) | ||
| JPS6224787Y2 (en) | ||
| JPH0335150B2 (en) | ||
| JPH01275288A (en) | Motorcycle | |
| JPH0478781A (en) | Installation structure of motorcycle components | |
| JP2529019Y2 (en) | Motorcycle | |
| JP2003056420A (en) | Air cleaner | |
| JP6691567B2 (en) | Air cleaner device for saddle type vehicle |