JPH06272554A - Secondary air device of motorcycle - Google Patents

Secondary air device of motorcycle

Info

Publication number
JPH06272554A
JPH06272554A JP6412893A JP6412893A JPH06272554A JP H06272554 A JPH06272554 A JP H06272554A JP 6412893 A JP6412893 A JP 6412893A JP 6412893 A JP6412893 A JP 6412893A JP H06272554 A JPH06272554 A JP H06272554A
Authority
JP
Japan
Prior art keywords
switching valve
air cleaner
secondary air
engine
hose
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
JP6412893A
Other languages
Japanese (ja)
Other versions
JP3237285B2 (en
Inventor
Tetsuo Nojima
徹男 野嶋
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.)
Suzuki Motor Corp
Original Assignee
Suzuki Motor Corp
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 Suzuki Motor Corp filed Critical Suzuki Motor Corp
Priority to JP06412893A priority Critical patent/JP3237285B2/en
Publication of JPH06272554A publication Critical patent/JPH06272554A/en
Application granted granted Critical
Publication of JP3237285B2 publication Critical patent/JP3237285B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • Exhaust Gas After Treatment (AREA)

Abstract

PURPOSE:To provide the secondary air device of a motorcycle which can prevent oscillation without mounting any special device and can maintain a specific function by providing an air cleaner exclusively used for secondary air, for not giving any variation in engine performance, and holding a switching valve by a piping hose. CONSTITUTION:An air cleaner 1 and right and left lead valves 12 are fixed to a bracket 13, and a switching valve 4 for opening/closing passages between the air cleaner 1 and right and left lead valves 12, is elastically held by hoses 3, 11 for connecting the air cleaner 1 to the switching valve 4, and connecting the right and left lead valves 12 to the switching valve 4 respectively.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】この発明は、排気ガス中の未燃成
分を浄化する自動二輪車の二次空気装置に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a secondary air device for a motorcycle, which purifies unburned components in exhaust gas.

【0002】[0002]

【従来の技術】自動車のエンジンなどでは、エンジンの
排気マニホールドに二次空気を注入し、排気系に触媒体
を取付け、二次空気を注入した排気ガスを触媒体に通
し、酸化反応を起させて再燃焼させ、排気ガス中の未燃
成分を浄化するようにしている。自動車の場合には、エ
ンジンルーム内にエンジンを装着してあって、エンジン
ルームにゆとりがあるので、二次空気装置の装着に困る
ことも少い。
2. Description of the Related Art In an automobile engine or the like, secondary air is injected into the exhaust manifold of the engine, a catalyst is attached to the exhaust system, and the exhaust gas injected with the secondary air is passed through the catalyst to cause an oxidation reaction. It is burned again to purify unburned components in the exhaust gas. In the case of automobiles, the engine is installed in the engine room, and there is plenty of room in the engine room, so it is less difficult to install the secondary air device.

【0003】自動二輪車の場合は、エンジンが露出して
見えている。そして、二次空気装置の装着スペースも少
い。それで、エンジンのエアークリーナーから二次空気
を分けて用いている。又、二次空気の制御バルブをエン
ジンのシリンダーヘッドなどに取付けている。例えば、
特開昭59−110825号公報参照。
In the case of a motorcycle, the engine appears to be exposed. And the installation space of the secondary air device is also small. Therefore, the secondary air is used separately from the engine air cleaner. Also, a secondary air control valve is attached to the cylinder head of the engine. For example,
See JP-A-59-110825.

【0004】[0004]

【発明が解決しようとする課題】エアークリーナーをエ
ンジンの吸気と二次空気を共用すると、エンジンの性能
に若干ではあるが影響を与える。又、制御バルブは、振
動の影響を受け易く、エンジンや車体に取付けるのに、
防振装置をしなければならず、複雑になる。
When the air cleaner shares the intake air of the engine and the secondary air, it slightly affects the performance of the engine. Also, the control valve is easily affected by vibration,
A vibration isolation device must be provided, which is complicated.

【0005】かかる点に鑑み、この発明は、二次空気専
用のエアークリーナーを設けて、エンジン性能に変化を
与えないようにすると共に、スイッチングバルブを配管
ホースで保持して、特別な装置を施すことなく防振でき
て、所定の機能を保つことができる自動二輪車の二次空
気装置を得ることを目的とする。
In view of the above point, the present invention provides an air cleaner dedicated to the secondary air so as not to change the engine performance, and holds the switching valve with the piping hose to provide a special device. An object of the present invention is to obtain a secondary air device for a motorcycle that can be isolated from vibrations and maintain a predetermined function.

【0006】[0006]

【課題を解決するための手段】上記目的を達成するため
に、この発明の自動二輪車の二次空気装置は、エアーク
リーナーと左右のリードバルブをブラケットに締着し、
エアークリーナーと左右のリードバルブ間を開閉するス
イッチングバルブをエアークリーナーとスイッチングバ
ルブ及び左右のリードバルブとスイッチングバルブを連
結するホースで弾性保持させるようにしたことにある。
In order to achieve the above object, a secondary air device for a motorcycle according to the present invention has an air cleaner and left and right reed valves fastened to a bracket,
The switching valve that opens and closes between the air cleaner and the left and right reed valves is elastically held by the hose that connects the air cleaner and the switching valve and the left and right reed valves and the switching valve.

【0007】二次空気装置のエアークリーナーは、エン
ジンの吸気用のエアークリーナーとは別個に設けてある
ので、エンジンの性能に影響を与えないようにできる。
又、スイッチングバルブはエアークリーナーとスイッチ
ングバルブ及びスイッチングバルブと左右のリードバル
ブを連結するホースのゴムの弾力で弾性保持するように
してあるので、エンジン振動や走行中の車体の振動を受
けることを少くできて、振動による誤作動を防ぐことが
できる。そして、スイッチングバルブの取付けには、特
別に部品を用いることなく安価にできる。
Since the air cleaner of the secondary air device is provided separately from the air cleaner for intake of the engine, the performance of the engine can be prevented from being affected.
Also, the switching valve is elastically held by the elastic force of the rubber of the hose connecting the air cleaner and the switching valve, and the switching valve and the left and right reed valves, so it is less likely to be subject to engine vibration and vibration of the vehicle body during running. It is possible to prevent malfunction due to vibration. Further, the switching valve can be attached inexpensively without using any special parts.

【0008】[0008]

【実施例】以下、本発明の実施例を図1乃至図12によ
って説明する。エアークリーナー1は、二次空気専用の
もので、上下に分けて合成樹脂で成形したものを最中状
に合せるようにしてあって、合せ面に多孔質のスポンジ
板などのフィルター板を挟むようにしてある。エアーク
リーナー1には、上側に吸入口2が設けてあり、下側の
出口はホース3でスイッチングバルブ4に連結する。ス
イッチングバルブ4は図6に示すように、上部の負圧室
5に負圧が加ると弁6がバネ7に抗して開くようにして
あり、負圧室5は細いホース8でエンジン9の吸気マニ
ホールド10に連結し、吸気マニホールド10内の一定
負圧以上で開くようにしてある。スイッチングバルブ4
の出口はホース11で左右のリードバルブ12に連結す
る。
Embodiments of the present invention will be described below with reference to FIGS. The air cleaner 1 is for secondary air only, and it is made by molding synthetic resin into upper and lower parts so that it fits in the middle, and a filter plate such as a porous sponge plate is sandwiched between the mating surfaces. is there. The air cleaner 1 is provided with an intake port 2 on the upper side, and the lower outlet is connected to a switching valve 4 by a hose 3. As shown in FIG. 6, the switching valve 4 is designed so that when negative pressure is applied to the upper negative pressure chamber 5, the valve 6 opens against the spring 7, and the negative pressure chamber 5 uses a thin hose 8 for the engine 9 The intake manifold 10 is connected to the intake manifold 10 to open at a predetermined negative pressure or higher. Switching valve 4
The outlet of is connected to the left and right reed valves 12 by a hose 11.

【0009】エアークリーナー1は、ブラケット13の
中央に締着し、左右のリードバルブ12は、ブラケット
13の左右に締着する。ブラケット13は、前端を、フ
レーム14の前端のヘッドパイプ15の後側の左右のメ
インチューブ16の間の取付けプレート17に締着す
る。ブラケット13には、ネジ孔18が前後に二列設け
てあって、取付けプレート17に取付けるとき場所を選
択できるようにしてある。取付けプレート17側の孔を
二列にしても同効である。スイッチングバルブ4は、連
結するホース3と左右のリードバルブ12に連結するホ
ース11によって、弾性ホース3,11で保持し、振動
の影響が少いように防振させてある。左右のリードバル
ブ12には、図9乃至図11に示すように、各々、二つ
の出口が設けてあり、四気筒のエンジン9の各シリンダ
ーの排気孔19にホース20と二次空気パイプ21によ
って連結する。二次空気パイプ21は、排気孔19の熱
に耐えるようにパイプ材にしてある。各排気孔19に連
結する排気管の後側のマフラ内には触媒体を取付ける。
The air cleaner 1 is fastened to the center of the bracket 13, and the left and right reed valves 12 are fastened to the left and right of the bracket 13. The bracket 13 has its front end fastened to a mounting plate 17 between the left and right main tubes 16 on the rear side of the head pipe 15 at the front end of the frame 14. The bracket 13 is provided with two rows of screw holes 18 at the front and the rear so that when mounting on the mounting plate 17, the location can be selected. Even if the holes on the mounting plate 17 side are arranged in two rows, the same effect can be obtained. The switching valve 4 is held by the elastic hoses 3 and 11 by the hose 3 connected to it and the hoses 11 connected to the left and right reed valves 12, and is vibration-isolated so that the influence of vibration is small. As shown in FIGS. 9 to 11, each of the left and right reed valves 12 is provided with two outlets, and a hose 20 and a secondary air pipe 21 are provided in an exhaust hole 19 of each cylinder of the four-cylinder engine 9. Link. The secondary air pipe 21 is made of a pipe material so as to withstand the heat of the exhaust hole 19. A catalyst body is mounted in the muffler on the rear side of the exhaust pipe connected to each exhaust hole 19.

【0010】エンジン9の吸気マニホールド10内が設
定以上の負圧になると、スイッチングバルブ4の負圧室
内の負圧で弁6が持上げられて開き、エアークリーナー
1で埃を取除いた二次空気が、ホース3、スイッチング
バルブ4を経てホース11からリードバルブ12に流れ
る。そして、排気孔19内の、間欠的に急激に流れる排
気ガスの脈動によって、負圧になったとき、リードバル
ブ12が開いて、ホース20と二次空気パイプ21から
排気孔19に二次空気が供給される。これによって、排
気ガスに酸素が補給され、マフラ内の触媒体に触れて酸
化反応して再燃焼し、排気ガス中の燃料の未燃成分が浄
化される。
When the negative pressure in the intake manifold 10 of the engine 9 exceeds a preset value, the valve 6 is lifted and opened by the negative pressure in the negative pressure chamber of the switching valve 4, and the secondary air from which dust has been removed by the air cleaner 1. Flows from the hose 11 to the reed valve 12 via the hose 3 and the switching valve 4. Then, when negative pressure is generated due to the pulsation of the exhaust gas that rapidly and intermittently flows in the exhaust hole 19, the reed valve 12 opens and the secondary air flows from the hose 20 and the secondary air pipe 21 to the exhaust hole 19. Is supplied. As a result, the exhaust gas is supplemented with oxygen, comes into contact with the catalytic body in the muffler, undergoes an oxidation reaction, and re-combusts, and the unburned components of the fuel in the exhaust gas are purified.

【0011】[0011]

【発明の効果】以上説明したように、この発明は上述の
ように構成したので、エアークリーナー1は、二次空気
用専用で、エンジン9の吸気用のエアークリーナーと別
個であり、エンジン性能に影響を与えることがない。
又、スイッチングバルブ4は、エアークリーナー1とス
イッチングバルブ4を連結するホース3とスイッチング
バルブ4と左右のリードバルブ12を連結するホース1
1の三本のゴム製のホース3,11で保持してあるの
で、防振できて、エンジン9やフレーム14の振動を受
けることを少くできて誤作動を防ぐことができる。そし
て、スイッチングバルブ4の取付けに特別に部品を用い
る必要がなく、安価にできる。
As described above, since the present invention is configured as described above, the air cleaner 1 is dedicated to the secondary air and is separate from the air cleaner for intake of the engine 9, and the engine performance is improved. It has no effect.
The switching valve 4 includes a hose 3 connecting the air cleaner 1 and the switching valve 4, a hose 1 connecting the switching valve 4 and the left and right reed valves 12.
Since it is held by the three rubber hoses 3 and 11 of 1, the vibration can be prevented, the vibration of the engine 9 and the frame 14 can be lessened, and the malfunction can be prevented. Further, it is not necessary to use a special component for mounting the switching valve 4, and the cost can be reduced.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明の実施例を示す要部側面図である。FIG. 1 is a side view of an essential part showing an embodiment of the present invention.

【図2】本発明の実施例を示す要部平面図である。FIG. 2 is a plan view of an essential part showing an embodiment of the present invention.

【図3】本発明の実施例を示すエンジン全体の側面図で
ある。
FIG. 3 is a side view of the entire engine showing an embodiment of the present invention.

【図4】本発明の実施例を示すエンジン全体の平面図で
ある。
FIG. 4 is a plan view of the entire engine showing an embodiment of the present invention.

【図5】本発明の実施例を示す二次空気装置主要部の側
面図である。
FIG. 5 is a side view of a main part of a secondary air device showing an embodiment of the present invention.

【図6】本発明の実施例を示すスイッチングバルブの縦
断面図である。
FIG. 6 is a vertical sectional view of a switching valve showing an embodiment of the present invention.

【図7】本発明の実施例を示すブラケットの側面図であ
る。
FIG. 7 is a side view of a bracket showing an embodiment of the present invention.

【図8】本発明の実施例を示すブラケットの底面図であ
る。
FIG. 8 is a bottom view of the bracket showing the embodiment of the present invention.

【図9】本発明の実施例を示すリードバルブの平面図で
ある。
FIG. 9 is a plan view of a reed valve showing an embodiment of the present invention.

【図10】本発明の実施例を示すリードバルブの縦断側
面図である。
FIG. 10 is a vertical sectional side view of a reed valve showing an embodiment of the present invention.

【図11】本発明の実施例を示すリードバルブの底面図
である。
FIG. 11 is a bottom view of the reed valve showing the embodiment of the present invention.

【図12】本発明の実施例を示す自動二輪車全体の側面
図である。
FIG. 12 is a side view of the entire motorcycle showing an embodiment of the present invention.

【符号の説明】[Explanation of symbols]

1 エアークリーナー 3 ホース 4 スイッチングバルブ 11 ホース 12 リードバルブ 13 ブラケット 1 Air Cleaner 3 Hose 4 Switching Valve 11 Hose 12 Reed Valve 13 Bracket

─────────────────────────────────────────────────────
─────────────────────────────────────────────────── ───

【手続補正書】[Procedure amendment]

【提出日】平成5年4月23日[Submission date] April 23, 1993

【手続補正1】[Procedure Amendment 1]

【補正対象書類名】図面[Document name to be corrected] Drawing

【補正対象項目名】図1[Name of item to be corrected] Figure 1

【補正方法】変更[Correction method] Change

【補正内容】[Correction content]

【図1】 [Figure 1]

【手続補正2】[Procedure Amendment 2]

【補正対象書類名】図面[Document name to be corrected] Drawing

【補正対象項目名】図2[Name of item to be corrected] Figure 2

【補正方法】変更[Correction method] Change

【補正内容】[Correction content]

【図2】 [Fig. 2]

【手続補正3】[Procedure 3]

【補正対象書類名】図面[Document name to be corrected] Drawing

【補正対象項目名】図5[Name of item to be corrected] Figure 5

【補正方法】変更[Correction method] Change

【補正内容】[Correction content]

【図5】 [Figure 5]

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 エアークリーナーと左右のリードバルブ
をブラケットに締着し、エアークリーナーと左右のリー
ドバルブ間を開閉するスイッチングバルブをエアークリ
ーナーとスイッチングバルブ及び左右のリードバルブと
スイッチングバルブを連結するホースで弾性保持させる
ようにしたことを特徴とする自動二輪車の二次空気装
置。
1. A hose connecting an air cleaner and a left / right reed valve to a bracket, and connecting a switching valve for opening / closing between the air cleaner and the left / right reed valve, the air cleaner and the switching valve, and the left and right reed valves and the switching valve. A secondary air device for a motorcycle, characterized in that it is elastically held by.
JP06412893A 1993-03-23 1993-03-23 Secondary air supply for exhaust gas purification of motorcycles Expired - Lifetime JP3237285B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP06412893A JP3237285B2 (en) 1993-03-23 1993-03-23 Secondary air supply for exhaust gas purification of motorcycles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP06412893A JP3237285B2 (en) 1993-03-23 1993-03-23 Secondary air supply for exhaust gas purification of motorcycles

Publications (2)

Publication Number Publication Date
JPH06272554A true JPH06272554A (en) 1994-09-27
JP3237285B2 JP3237285B2 (en) 2001-12-10

Family

ID=13249131

Family Applications (1)

Application Number Title Priority Date Filing Date
JP06412893A Expired - Lifetime JP3237285B2 (en) 1993-03-23 1993-03-23 Secondary air supply for exhaust gas purification of motorcycles

Country Status (1)

Country Link
JP (1) JP3237285B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008190505A (en) * 2007-02-07 2008-08-21 Honda Motor Co Ltd Catalyst arrangement structure of motorcycle
US9316138B2 (en) 2014-03-05 2016-04-19 Honda Motor Co., Ltd. Saddle type vehicle

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6782363B2 (en) * 2017-08-30 2020-11-11 本田技研工業株式会社 Engine exhaust purification device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008190505A (en) * 2007-02-07 2008-08-21 Honda Motor Co Ltd Catalyst arrangement structure of motorcycle
US9316138B2 (en) 2014-03-05 2016-04-19 Honda Motor Co., Ltd. Saddle type vehicle

Also Published As

Publication number Publication date
JP3237285B2 (en) 2001-12-10

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