JPH04201686A - Air cleaner device for motorcycle - Google Patents

Air cleaner device for motorcycle

Info

Publication number
JPH04201686A
JPH04201686A JP2330165A JP33016590A JPH04201686A JP H04201686 A JPH04201686 A JP H04201686A JP 2330165 A JP2330165 A JP 2330165A JP 33016590 A JP33016590 A JP 33016590A JP H04201686 A JPH04201686 A JP H04201686A
Authority
JP
Japan
Prior art keywords
air
body frame
air cleaner
cleaners
vehicle body
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
Application number
JP2330165A
Other languages
Japanese (ja)
Other versions
JP3006877B2 (en
Inventor
Toyoyuki Yamamoto
山本 豊之
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yamaha Motor Co Ltd
Original Assignee
Yamaha Motor Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Yamaha Motor Co Ltd filed Critical Yamaha Motor Co Ltd
Priority to JP2330165A priority Critical patent/JP3006877B2/en
Publication of JPH04201686A publication Critical patent/JPH04201686A/en
Application granted granted Critical
Publication of JP3006877B2 publication Critical patent/JP3006877B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

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  • Automatic Cycles, And Cycles In General (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)

Abstract

PURPOSE:To enable the capacity of air cleaners to be easily enlarged, and unify air intake conditions for each cleaner by providing the air cleaners near the center of body frame width and at both right and left sides of a body frame, and making each air intake of the inner and outer air cleaners open to the inside or outside of the body frame. CONSTITUTION:An inner air cleaner 42 is positioned near the center of width of a body frame 10, while an outer air cleaner 44 is positioned at both right and left sides of the body frame 10. The air inlets 52 and 70 of both air cleaners 42 and 44 are open to the neighborhood of space inside the body frame 10. Consequently, both air cleaners 42 and 44 take in the air having approximately equal temperature, and air intake conditions for both cylinders 36a and 36b can thereby be unified. Also, both air cleaners 42 and 44 can be easily enlarged in capacity, due to separation into inner and outer arrangement.

Description

【発明の詳細な説明】 (産業上の利用分野) 本発明は、複数の気筒を有するエンジンに複数のエアク
リーナから空気を供給するようにした自動二輪車のエア
クリーナ装置に関するものである。
DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an air cleaner device for a motorcycle, which supplies air from a plurality of air cleaners to an engine having a plurality of cylinders.

(従来技術) 各気筒の吸気行程が一部で重なるエンジンや不等間隔爆
発を行うエンジンでは、各気筒の吸気系に干渉が発生し
、吸気効率が低下することがある。そこで各気筒のエア
クリーナを独立させてこの吸気の干渉を防ぐものが提案
された。例えば、特開平1−208559号、実開昭6
3−21760号には、1つの箱状のエアクリーナ内部
を仕切壁によって2つの独立した部屋に分割したものが
提案されている。また実開昭61−203889号には
、左右一対の同形状のエアクリーナをカウリングに形成
したものが提案されている。
(Prior Art) In an engine in which the intake strokes of each cylinder partially overlap or in an engine that performs explosions at irregular intervals, interference may occur in the intake system of each cylinder, resulting in a decrease in intake efficiency. Therefore, it was proposed to have independent air cleaners for each cylinder to prevent this intake air interference. For example, JP-A No. 1-208559, JP-A No. 6
No. 3-21760 proposes a box-shaped air cleaner in which the interior is divided into two independent rooms by a partition wall. Further, Japanese Utility Model Application No. 61-203889 proposes a cowling in which a pair of left and right air cleaners of the same shape are formed.

しかしこれら既提案のものはいずれもエアクリーナの大
容量化の点において制限があった。すなわち内部を仕切
壁で仕切る前者の場合に、大容量化するとエアクリーナ
の箱が極端に太き(なりその収容スペースを確保する点
で不利になるからであり、また左右のカウリング内面に
分ける後者の場合には、カウリングの左・右側内側に大
きなほぼ等しいスペースを確保するのが困難であるから
である。
However, all of these existing proposals have limitations in increasing the capacity of the air cleaner. In other words, in the former case where the interior is divided by a partition wall, increasing the capacity would make the air cleaner box extremely thick (which would be disadvantageous in terms of securing space for it); This is because in some cases, it is difficult to secure large, approximately equal spaces inside the left and right sides of the cowling.

(発明が解決しようとする課題) 本発明が解決しようとする課題は、複数のエアクリーナ
に分ける場合に、その大容量化をし易くし、また分割し
た各エアクリーナによる吸気条件°  をできるだけ揃
えるようにすることである。
(Problem to be Solved by the Invention) The problem to be solved by the present invention is to make it easier to increase the capacity when dividing the air cleaner into multiple air cleaners, and to make the intake conditions of each divided air cleaner as uniform as possible. It is to be.

(発明の構成) 本発明によればこの課題は、複数気筒のエンジンを車体
中央付近に搭載した自動二輪車において、車体フレーム
幅の中央付近に配設された内側エアクリーナと、車体フ
レームの左右側面に配設された外側エアクリーナとを備
え、前記内・外側エアクリーナの各空気取入口を共に車
体フレームの内側あるいは外側に開口させたことを特徴
とする自動二輪車のエアクリーナ装置により達成される
(Structure of the Invention) According to the present invention, this problem is solved in a motorcycle in which a multi-cylinder engine is mounted near the center of the vehicle body. The present invention is achieved by an air cleaner device for a motorcycle, characterized in that the air cleaner device includes an outer air cleaner provided therein, and each of the air intake ports of the inner and outer air cleaners are both opened to the inside or outside of the vehicle body frame.

(実施例) 第1図は本発明の一実施例の平面図、第2図は同じく側
面図、第3図はその要部の一部断面側面図、第4図は同
じく後面図である。
(Embodiment) Fig. 1 is a plan view of an embodiment of the present invention, Fig. 2 is a side view thereof, Fig. 3 is a partially sectional side view of the main part thereof, and Fig. 4 is a rear view thereof.

車体フレームlOはステアリング・ヘッドバイブ12か
ら斜下後方へのびる左右一対のサイドメンバ14.14
(第4図参照)を有する。これらのサイドメンバ14は
断面が縦長の箱状となっている。16は前フオーク、1
8は前輪、20はハンドルバーである。第2図で22は
リヤアームであり、その後端に後輪24が保持されてい
る。このリヤアーム22は運転シート26の下方に位置
する1本のクツションユニット(図示せず)により弾性
的に支持されている。
The vehicle body frame IO includes a pair of left and right side members 14.14 extending obliquely downward and rearward from the steering head vibration 12.
(See Figure 4). These side members 14 have a vertically elongated box-like cross section. 16 is the front fork, 1
8 is a front wheel, and 20 is a handlebar. In FIG. 2, 22 is a rear arm, and a rear wheel 24 is held at its rear end. This rear arm 22 is elastically supported by one cushion unit (not shown) located below the driver's seat 26.

28は燃料タンクであり、前記サイドメンバ14.14
の上方に跨がるように配設されている。この燃料タンク
28の内底板30は第3.4図に示すように上方へ陥没
し、ここに空間32が下に向って開くように形成される
28 is a fuel tank, and the side member 14.14
It is arranged so that it straddles above. The inner bottom plate 30 of the fuel tank 28 is depressed upward as shown in FIG. 3.4, and a space 32 is formed therein so as to open downward.

34は2サイクル2気筒V型エンジンである。34 is a two-stroke, two-cylinder, V-type engine.

このエンジン34は2つの気筒36a、36bに挟まれ
るV型の谷が前方を指向するように搭載されている。下
の気筒36aの排気はエンジン34下方を通り右側のマ
フラ38aに導かれる(第1図)。上の気筒36aの排
気は同様に左側のマフラ38bに導かれる。
This engine 34 is mounted so that a V-shaped valley between two cylinders 36a and 36b faces forward. The exhaust gas from the lower cylinder 36a passes below the engine 34 and is led to the right muffler 38a (FIG. 1). The exhaust gas from the upper cylinder 36a is similarly led to the left muffler 38b.

40はカウリングであり、サイドメンバー14およびエ
ンリン34の両側方から前輪10の上方のヘッドパイプ
付近を覆っている。
A cowling 40 covers the vicinity of the head pipe above the front wheel 10 from both sides of the side member 14 and the engine ring 34.

42は内側エアクリーナであり、車体フレームの幅の中
央付近に位置する。すなわち前記燃料タンク28の内底
板30の空間32内に収容されている。また44は外側
エアクリーナであり車体フレーム10の右側面、すなわ
ち右側のカウリング40内面に近接して収容されている
42 is an inner air cleaner located near the center of the width of the vehicle body frame. That is, it is accommodated in the space 32 of the inner bottom plate 30 of the fuel tank 28. Reference numeral 44 denotes an outer air cleaner, which is housed close to the right side of the vehicle body frame 10, that is, the inner surface of the right cowling 40.

内側エアクリーナ42には、第3図に示すように上下割
りのケース間に挟んだエレメント46により上下空気室
48.50が画成されている。そして上空気室48に開
口する空気取入口52はケースの上面から空間32内の
後方を指向している。従ってこの空気取入口52から上
空気室48に入った空気は、エレメント46を通って上
空気室50に入り、さらにダクト54、気化器56を通
り上の気筒36bの後方に開口する吸気口に導かれる。
As shown in FIG. 3, the inner air cleaner 42 has upper and lower air chambers 48 and 50 defined by an element 46 sandwiched between upper and lower cases. The air intake port 52 that opens into the upper air chamber 48 is oriented toward the rear within the space 32 from the top surface of the case. Therefore, the air that enters the upper air chamber 48 from the air intake port 52 passes through the element 46, enters the upper air chamber 50, and then passes through the duct 54 and the carburetor 56 to the intake port opening to the rear of the upper cylinder 36b. be guided.

外側エアクリーナ44は、カウリング40の内面に沿っ
て前後に長く形成され、その左右割りのケース内にはケ
ース割り面間に保持されたエレメント58によって空気
室60.62が画成される。右空気室60は、左空気室
62を貫通するバイブロ4と、右側のサイドメンバー1
4の車体内側をほぼ垂直に通るダクト66とによって前
記燃料タンク28の空間32内に連通される。ここにバ
イブロ4は右側の前記サイドメンバー14の下方を通り
、ダクト66の下端に接続されている。
The outer air cleaner 44 is formed long in the front and back along the inner surface of the cowling 40, and an air chamber 60.62 is defined within the left and right case by an element 58 held between the case split surfaces. The right air chamber 60 has a vibro 4 passing through the left air chamber 62 and a right side member 1.
The fuel tank 28 is communicated with the space 32 of the fuel tank 28 by a duct 66 that runs substantially vertically inside the vehicle body. Here, the vibro 4 passes below the right side member 14 and is connected to the lower end of the duct 66.

またダクト66の上部は、内側エアクリーナ42のケー
スの右縁に形成した切欠部68を通って内底板30の下
面に臨み、ここに空気取入ロア0が開口する。外側エア
クリーナ44の右空気室62はダクト72、気化器74
を介して、下の気筒36aの上方に開口する吸気口に連
通している。
Further, the upper part of the duct 66 passes through a notch 68 formed on the right edge of the case of the inner air cleaner 42 and faces the lower surface of the inner bottom plate 30, where the air intake lower 0 opens. The right air chamber 62 of the outer air cleaner 44 has a duct 72 and a carburetor 74.
The lower cylinder 36a is connected to an intake port opening upwardly through the lower cylinder 36a.

この結果両エアクリーナ42.44の空気取入口52.
70は共に車体フレーム10の内側の空間32内に近接
して開口する。このため両エアクリーナ42.44には
ほぼ等しい温度の空気が吸入されることになり、両気筒
36a、bの吸気条件を均一化できる。また両エアクリ
ーナ42.44は車体フレームlOの内側と外側とに分
けたのでそれぞれを大容積化し易い。
As a result, air intake ports 52. of both air cleaners 42.44.
70 both open close to the space 32 inside the vehicle body frame 10. Therefore, air of approximately the same temperature is taken into both air cleaners 42, 44, and the air intake conditions of both cylinders 36a and 36b can be made uniform. Further, since both air cleaners 42 and 44 are divided into an inner side and an outer side of the vehicle body frame 10, it is easy to increase the volume of each air cleaner.

なお第1.2図において、80はカウリング40の左内
面に設けたダクトである。このダクト80の前端は前輪
18の左側上方から前方を指向して開口し、その後端は
燃料タンク28の空間32内に開口する。このダクト8
0は走行風を空間32に導くが、特にレース等でエアク
リーナ42.44を取外して走行する場合に、両気化器
56.74に導く空気温度を均一化する作用を持つ。す
なわちエアクリーナ42.44を取外した場合には、上
の気筒36bの後方は走行風が入りにくいので気化器5
6の吸入空気温度が気化器74の吸気温度よりも高くな
るが、ここにダクト80で走行風を導くことにより両吸
気温度を均一化するものである。
In addition, in FIG. 1.2, 80 is a duct provided on the left inner surface of the cowling 40. The front end of this duct 80 opens toward the front from above the left side of the front wheel 18, and the rear end opens into the space 32 of the fuel tank 28. This duct 8
0 guides running wind into the space 32, and has the effect of equalizing the temperature of the air introduced to both carburetors 56, 74, especially when running with the air cleaner 42, 44 removed during a race or the like. In other words, when the air cleaners 42 and 44 are removed, the rear of the upper cylinder 36b is difficult for air to enter, so the carburetor 5
Although the intake air temperature of No. 6 becomes higher than the intake air temperature of the carburetor 74, the temperature of both intake airs is made equal by guiding the running air through the duct 80.

以上の実施例は両エアクリーナ42.44の空気取入口
52.70を共に車体フレーム10の内側に開口させた
ものである。
In the above embodiment, the air intake ports 52, 70 of both air cleaners 42, 44 are both opened inside the vehicle body frame 10.

第5図を第6図は他の実施例の平面図と側面図である。FIGS. 5 and 6 are a plan view and a side view of another embodiment.

この実施例は内・外側エアクリーナ42A、44Aの空
気取入口52A、70Aを車体フレーム10の外側すな
わち右側に開口させたものである。これらの図で54A
は内側エアクリーナ42Aのダクトであり、そのケース
の上面から燃料タンク28の右下縁の下方に延び、ここ
から外側に向って開口する。また66Aは外側エアクリ
ーナ44Aのダクトであり、その後部から後下方へ突出
して下方に開口する。
In this embodiment, the air intake ports 52A and 70A of the inner and outer air cleaners 42A and 44A are opened on the outside of the vehicle body frame 10, that is, on the right side. 54A in these diagrams
is a duct of the inner air cleaner 42A, which extends from the upper surface of the case to below the lower right edge of the fuel tank 28 and opens outward from there. Further, 66A is a duct of the outer air cleaner 44A, which protrudes rearward and downward from the rear portion thereof and opens downward.

この実施例によればカウリング40の右内側の互いに接
近する位置から空気を各エアクリーナ42A、44Aに
吸入できるから、吸気温度が均一化する。
According to this embodiment, air can be drawn into each air cleaner 42A, 44A from positions close to each other on the right inner side of the cowling 40, so that the temperature of the intake air is made uniform.

(発明の効果) 本発明は以上のように、エアクリーナを車体フレームの
内側と外側とに分けたので、それぞれのエアクリーナの
大容量化がし易くなる。また両エアクリーナは車体フレ
ームの内側と外側とのいずれか同一の側から空気を吸入
するので、吸気温度が均一化し、各気筒、の吸気条件を
揃えることかできる。
(Effects of the Invention) As described above, the present invention separates the air cleaner into the inside and outside of the vehicle body frame, making it easier to increase the capacity of each air cleaner. Furthermore, since both air cleaners suck air from the same side, either the inside or the outside of the vehicle body frame, the intake air temperature becomes uniform and the intake conditions for each cylinder can be made the same.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本発明の一実施例の平面図、第2図は同じく側
面図、第3図はその要部の一部断面側面図、第4図は同
じく後面図である。 署 また第5図と第6図は他の実施例の平面図と側面図であ
る。 10・・・車体フレーム、 34・・・エンジン、 42.42A・・・内側エアクリーナ、44.44A・
・・外側エアクリーナ、52.62A、70.70A・
・・空気取入口。 特許出願人 ヤマハ発動機株式会社
FIG. 1 is a plan view of an embodiment of the present invention, FIG. 2 is a side view, FIG. 3 is a partially sectional side view of the main part, and FIG. 4 is a rear view. FIGS. 5 and 6 are a plan view and a side view of another embodiment. 10...Vehicle frame, 34...Engine, 42.42A...Inner air cleaner, 44.44A.
・・Outside air cleaner, 52.62A, 70.70A・
・Air intake. Patent applicant Yamaha Motor Co., Ltd.

Claims (1)

【特許請求の範囲】 複数気筒のエンジンを車体中央付近に搭載した自動二輪
車において、 車体フレーム幅の中央付近に配設された内側エアクリー
ナと、車体フレームの左右側面に配設された外側エアク
リーナとを備え、前記内・外側エアクリーナの各空気取
入口を共に車体フレームの内側あるいは外側に開口させ
たことを特徴とする自動二輪車のエアクリーナ装置。
[Claims] In a motorcycle with a multi-cylinder engine mounted near the center of the vehicle body, an inner air cleaner disposed near the center of the width of the vehicle body frame and an outer air cleaner disposed on the left and right sides of the vehicle body frame are provided. An air cleaner device for a motorcycle, characterized in that each of the air intake ports of the inner and outer air cleaners are both opened inside or outside of a vehicle body frame.
JP2330165A 1990-11-30 1990-11-30 Motorcycle air cleaner device Expired - Fee Related JP3006877B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2330165A JP3006877B2 (en) 1990-11-30 1990-11-30 Motorcycle air cleaner device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2330165A JP3006877B2 (en) 1990-11-30 1990-11-30 Motorcycle air cleaner device

Publications (2)

Publication Number Publication Date
JPH04201686A true JPH04201686A (en) 1992-07-22
JP3006877B2 JP3006877B2 (en) 2000-02-07

Family

ID=18229547

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2330165A Expired - Fee Related JP3006877B2 (en) 1990-11-30 1990-11-30 Motorcycle air cleaner device

Country Status (1)

Country Link
JP (1) JP3006877B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5560446A (en) * 1994-10-06 1996-10-01 Kawasaki Jukogyo Kabushiki Kaisha Motorcycle

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5560446A (en) * 1994-10-06 1996-10-01 Kawasaki Jukogyo Kabushiki Kaisha Motorcycle

Also Published As

Publication number Publication date
JP3006877B2 (en) 2000-02-07

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