JPH041186B2 - - Google Patents
Info
- Publication number
- JPH041186B2 JPH041186B2 JP20287083A JP20287083A JPH041186B2 JP H041186 B2 JPH041186 B2 JP H041186B2 JP 20287083 A JP20287083 A JP 20287083A JP 20287083 A JP20287083 A JP 20287083A JP H041186 B2 JPH041186 B2 JP H041186B2
- Authority
- JP
- Japan
- Prior art keywords
- intake
- internal combustion
- combustion engine
- box
- cylinder
- 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
- 238000002485 combustion reaction Methods 0.000 claims description 17
- 230000000694 effects Effects 0.000 description 3
- 239000000446 fuel Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/10—Air intakes; Induction systems
- F02M35/10006—Air intakes; Induction systems characterised by the position of elements of the air intake system in direction of the air intake flow, i.e. between ambient air inlet and supply to the combustion chamber
- F02M35/10026—Plenum chambers
- F02M35/10039—Intake ducts situated partly within or on the plenum chamber housing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/10—Air intakes; Induction systems
- F02M35/10006—Air intakes; Induction systems characterised by the position of elements of the air intake system in direction of the air intake flow, i.e. between ambient air inlet and supply to the combustion chamber
- F02M35/10026—Plenum chambers
- F02M35/10045—Multiple plenum chambers; Plenum chambers having inner separation walls
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/10—Air intakes; Induction systems
- F02M35/104—Intake manifolds
- F02M35/116—Intake manifolds for engines with cylinders in V-arrangement or arranged oppositely relative to the main shaft
- F02M35/1165—Boxer or pancake engines
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Characterised By The Charging Evacuation (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Description
【発明の詳細な説明】
〔発明の技術分野〕
この発明は、自動二輪車や乗用車など高性能な
小型車両用の内燃機関に関するもので、特にＶ形
あるいは水平対向形など、クランク室を挟んで両
側に気筒が配された内燃機関の吸気装置に関す
る。[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to an internal combustion engine for high-performance small vehicles such as motorcycles and passenger cars. This invention relates to an intake system for an internal combustion engine in which cylinders are arranged.
一般に内燃機関の性能を向上させようとすると
き、吸気の慣性効果を利用することが多いが、そ
の場合各吸気通路の長さは正確を期す必要がある
ので、各気筒の吸気通路は可及的に簡潔な配管に
する必要がある。
Generally, when trying to improve the performance of an internal combustion engine, the inertia effect of the intake air is often utilized, but in this case, the length of each intake passage must be accurate, so the intake passage of each cylinder can be as short as possible. The piping needs to be simple and simple.
従来、クランク室を挟んで両側に気筒が配され
るＶ形あるいは水平対向形の機関においては、前
記吸気箱を各シリンダ列のシリンダヘツド近傍に
設けているので、充分長い吸気通路をとることが
困難であつた。また、それを解消すべくシリンダ
の側方に吸気箱を設置することも行われているが
（例えば実開昭56−34032号公報）、各気筒の吸気
管の長さが著しく不ぞろいとなり、所要の性能を
発揮するのが困難であつた。 Conventionally, in V-type or horizontally opposed engines in which cylinders are arranged on both sides of a crank chamber, the intake box is provided near the cylinder head of each cylinder row, so it is not possible to have a sufficiently long intake passage. It was difficult. In addition, in order to solve this problem, an intake box is installed on the side of the cylinder (for example, Japanese Utility Model Publication No. 56-34032), but the length of the intake pipe of each cylinder is significantly uneven, and the required It was difficult to demonstrate its performance.
この発明はこの不具合を解消することを目的と
するもので、クランク軸を挟んで両側へ伸びる左
右の気筒によつて構成された左右一対のシリンダ
列の上方に、互いに対向する側面どうしが吸気管
で連結されかつ大気に通じる大気口が設けられた
左右の吸気箱を各シリンダ列と対応させて配置
し、前期吸気管の一端を一方の吸気管に連通させ
ると共に、他端を他方の吸気箱に設けられた吸気
路に連通させてなり、この吸気路は吸気箱に一体
に形成され、この吸気箱と同側のシリンダヘツド
の吸気口に向かつて屈曲されてこの吸気口に連通
されていることを特徴とするものである。
The purpose of this invention is to solve this problem, and the intake pipes are arranged above a pair of left and right cylinder rows, which are made up of left and right cylinders extending to both sides with the crankshaft in between. The left and right intake boxes, which are connected to each other and are provided with air ports that communicate with the atmosphere, are arranged in correspondence with each cylinder row, with one end of the front intake pipe communicating with one intake pipe, and the other end communicating with the other intake box. The intake passage is formed integrally with the intake box, and is bent toward the intake port of the cylinder head on the same side as the intake box, and communicates with the intake port. It is characterized by this.
図示の実施例によつて、この発明を説明する。
図中、１は自動二輪車であり、前輪２と後輪３と
の間に歯車変速機を含むエンジン４を懸架してい
る。５はエンジン４に連なるエアクリーナ、６は
エンジン４と後輪３とを連結する駆動チエーンで
ある。
The invention will be explained by means of illustrated embodiments.
In the figure, 1 is a motorcycle, and an engine 4 including a gear transmission is suspended between front wheels 2 and rear wheels 3. 5 is an air cleaner connected to the engine 4, and 6 is a drive chain connecting the engine 4 and the rear wheels 3.
エンジン４は第２図、第３図で示すように、水
平対向形の６気筒形であり、クランク軸（図示せ
ず）を軸支するクランク箱７を挟んで両端に伸び
る３個づつの気筒８，８を有する。各気筒８は右
シリンダ列Ｒと左シリンダ列Ｌとを形成し、クラ
ンク箱７の側面に配置したシリンダ９とシリンダ
ヘツド１０とからなつている。１１は燃焼室であ
り、シリンダ９とシリンダヘツド１０およびピス
トン１２によつて形成される。燃焼室１１には吸
気弁（図示せず）を介して吸気ポート１１ａが接
続されており、吸気ポート１１ａはシリンダヘツ
ド１０の上面に開口している。 As shown in FIGS. 2 and 3, the engine 4 is of a horizontally opposed six-cylinder type, with three cylinders extending at both ends across a crank box 7 that pivotally supports a crankshaft (not shown). It has 8,8. Each cylinder 8 forms a right cylinder row R and a left cylinder row L, and is composed of a cylinder 9 and a cylinder head 10 arranged on the side surface of the crank box 7. A combustion chamber 11 is formed by a cylinder 9, a cylinder head 10, and a piston 12. An intake port 11a is connected to the combustion chamber 11 via an intake valve (not shown), and the intake port 11a opens on the upper surface of the cylinder head 10.
シリンダヘツド１０の上面には各シリンダ列毎
に吸気箱１４が設けられている。各吸気箱１４に
は前記吸気ポート１１ａに接続され、吸気箱１４
を貫いて他側へ伸びる約90°に屈曲した３個の吸
気路１４ａが設けてある。吸気路１４ａの他端は
吸気箱１４に嵌挿された吸気管１５に接続され、
その吸気管１５を通して他側の吸気箱１４内に突
入して開口している。吸気管１５の上流端を形成
するエアフアンネル１４ｂから燃焼室１１に至る
長さは、エンジンの特性に合わせて、最大出力速
度、あるいは出力トルクの低い速度域に設定され
るのが普通である。１６は吸気箱１４内を大気中
に開放する集合吸気管であり、そこにはエンジン
出力制御用の蝶形絞り弁１７が設けられている。
１８は吸気箱１４に設けられた電磁作動形の燃料
噴射弁であり、クランク軸が所定のクランク角に
至つたとき、吸気路１４ａ内に向けて燃料を噴射
する。 An intake box 14 is provided on the upper surface of the cylinder head 10 for each cylinder row. Each intake box 14 is connected to the intake port 11a, and the intake box 14 is connected to the intake port 11a.
There are three intake passages 14a bent at approximately 90 degrees that extend through the air to the other side. The other end of the intake path 14a is connected to an intake pipe 15 fitted into the intake box 14,
Through the intake pipe 15, it protrudes into the intake box 14 on the other side and opens. The length from the air funnel 14b forming the upstream end of the intake pipe 15 to the combustion chamber 11 is usually set at a maximum output speed or a speed range with low output torque, depending on the characteristics of the engine. Reference numeral 16 denotes a collective intake pipe that opens the inside of the intake box 14 to the atmosphere, and a butterfly-shaped throttle valve 17 for controlling engine output is provided therein.
Reference numeral 18 denotes an electromagnetically actuated fuel injection valve provided in the intake box 14, which injects fuel into the intake passage 14a when the crankshaft reaches a predetermined crank angle.
次に、このエンジンの作動を説明する。エンジ
ン４が始動すると、エアクリーナ５から大気が吸
入され、絞り弁１７によつて吸気量を調節されて
右シリンダ列Ｒと左シリンダ列Ｌに設けられた各
吸気箱１４に分流する。各吸気箱１４にはエアフ
アンネル１４ｂが形成されており、そこには他方
のシリンダ列の燃焼室１１に通じる吸気管１５が
挿通されている。吸気流はこゝで更に各気筒毎に
分流し、吸気管１５、吸気箱１４を貫いて伸びる
吸気路１４ａを燃焼室１１へ流入する。 Next, the operation of this engine will be explained. When the engine 4 starts, atmospheric air is sucked in from the air cleaner 5, the intake air amount is adjusted by the throttle valve 17, and the air is divided into the intake boxes 14 provided in the right cylinder row R and the left cylinder row L. Each intake box 14 is formed with an air funnel 14b, into which an intake pipe 15 communicating with the combustion chamber 11 of the other cylinder row is inserted. The intake air flow is further divided for each cylinder and flows into the combustion chamber 11 through an intake passage 14a extending through the intake pipe 15 and the intake box 14.
この発明に係る内燃機関の吸気装置は、以上の
ように、クランク軸を挟んで両側へ伸びる左右の
気筒によつて構成された左右一対のシリンダ列の
上方に、互いに対向する側面どうしが吸気管で連
結されかつ大気に通じる大気口が設けられた左右
の吸気箱を各シリンダ列と対応させて配置し、前
期吸気管の一端を一方の吸気管に連通させると共
に、他端を他方の吸気箱に設けられた吸気路に連
通させてなり、この吸気路は吸気箱に一体に形成
され、この吸気箱と同側のシリンダヘツドの吸気
口に向かつて屈曲されてこの吸気口に連通されて
いるものであり、吸気箱を吸気通路の折曲げに利
用したから、左右のシリンダ列に設けた吸気箱間
にエンジンの要求特性に沿つた比較的長い吸気通
路を形成し得る。また、吸気箱内に吸気通路を屈
曲させる吸気路を形成したから、それらを各別に
設ける場合に比して吸気通路を構成する部品点数
を削除することが出来る。更に、各シリンダヘツ
ド間に橋架される吸気通路は、各吸気箱の箱体を
貫いて吸気ポートに接続されており、左右のシリ
ンダ列の吸気通路を整然と並列配置することが可
能となり、組立が容易で、且つ外形を小型化する
ことが出来る。
As described above, in the intake system for an internal combustion engine according to the present invention, the intake pipes are arranged above a pair of left and right cylinder rows formed by left and right cylinders extending to both sides of the crankshaft. The left and right intake boxes, which are connected to each other and are provided with air ports that communicate with the atmosphere, are arranged in correspondence with each cylinder row, with one end of the front intake pipe communicating with one intake pipe, and the other end communicating with the other intake box. The intake passage is formed integrally with the intake box, and is bent toward the intake port of the cylinder head on the same side as the intake box, and communicates with the intake port. Since the intake box is used to bend the intake passage, a relatively long intake passage that meets the required characteristics of the engine can be formed between the intake boxes provided in the left and right cylinder rows. Furthermore, since the intake passage is formed in the intake box by bending the intake passage, the number of parts constituting the intake passage can be reduced compared to the case where each intake passage is provided separately. Furthermore, the intake passages bridged between each cylinder head pass through the box body of each intake box and are connected to the intake ports, making it possible to arrange the intake passages of the left and right cylinder rows neatly in parallel, making assembly easier. It is easy and the external size can be reduced.
なお、この実施例のように、吸気箱と吸気路と
を一体的に形成する他、エアフアンネルをも一体
化すれば、吸気系の構造を一層簡略化することが
できる。また、水平対向形のエンジンに適用すれ
ば、燃焼室に連なる吸気通路の長さを比較的長く
設定することが出来る効果もある。 Note that, as in this embodiment, in addition to integrally forming the intake box and the intake path, if the air funnel is also integrated, the structure of the intake system can be further simplified. Furthermore, if applied to a horizontally opposed engine, there is an effect that the length of the intake passage connected to the combustion chamber can be set relatively long.
図面はこの発明の一実施例を示すもので、第１
図は自動二輪車の側面図、第２図はエンジンの要
部の平面図、第３図は側面図、第４図は第２図中
の−断面図、第５図は第３図中の−断面
を拡大して示す要部の拡大断面図である。
７……クランク箱、Ｒ……右シリンダ列、Ｌ…
…左シリンダ列、１１ａ……吸気ポート、１４…
…吸気箱、１４ａ……吸気路、１５……吸気管。
The drawings show one embodiment of the invention.
The figure is a side view of the motorcycle, Fig. 2 is a plan view of the main parts of the engine, Fig. 3 is a side view, Fig. 4 is a sectional view of Fig. 2, and Fig. 5 is a - of Fig. 3. FIG. 2 is an enlarged cross-sectional view of a main part showing an enlarged cross-section. 7...Crank box, R...Right cylinder row, L...
...Left cylinder row, 11a...Intake port, 14...
...Intake box, 14a...Intake path, 15...Intake pipe.
Claims (1)
によつて構成された左右一対のシリンダ列の上方
に、互いに対向する側面どうしが吸気管で連結さ
れかつ大気に通じる大気口が設けられた左右の吸
気箱を各シリンダ列と対応させて配置し、前記吸
気管の一端を一方の吸気箱に連通させると共に、
他端を他方の吸気箱に設けられた吸気路に連通さ
せてなり、この吸気路は吸気箱に一体に形成さ
れ、この吸気箱と同側のシリンダヘツドの吸気口
に向かつて屈曲されてこの吸気口に連通されてい
ることを特徴とする内燃機関の吸気装置。 ２ 内燃機関はＶ形に配置されたシリンダ列を有
するＶ形機関である特許請求の範囲第１項記載の
内燃機関の吸気装置。 ３ 内燃機関は水平に配置された左右一対のシリ
ンダ列を有する水平対向形である特許請求の範囲
第１項記載の内燃機関の吸気装置。 ４ 内燃機関は水平に配置された左右一対のシリ
ンダ列を有し、そのシリンダヘツドに形成された
吸気口は鉛直上方に向けて開口している特許請求
の範囲第１項記載の内燃機関の吸気装置。[Scope of Claims] 1. Above a pair of left and right cylinder rows formed by left and right cylinders extending to both sides with the crankshaft in between, the opposing sides are connected to each other by an intake pipe and an atmospheric air port is connected to the atmosphere. The left and right intake boxes provided with are arranged in correspondence with each cylinder row, and one end of the intake pipe is communicated with one of the intake boxes,
The other end is connected to an intake passage provided in the other intake box, and this intake passage is formed integrally with the intake box, and is bent toward the intake port of the cylinder head on the same side as this intake box. An intake device for an internal combustion engine, characterized in that the intake device communicates with an intake port. 2. An intake system for an internal combustion engine according to claim 1, wherein the internal combustion engine is a V-shaped engine having cylinder rows arranged in a V-shape. 3. An intake system for an internal combustion engine according to claim 1, wherein the internal combustion engine is a horizontally opposed type having a pair of left and right cylinder rows arranged horizontally. 4. The intake air of the internal combustion engine according to claim 1, wherein the internal combustion engine has a pair of horizontally arranged left and right cylinder rows, and the intake port formed in the cylinder head opens vertically upward. Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58202870A JPS6095179A (en) | 1983-10-31 | 1983-10-31 | Intake device of internal-combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58202870A JPS6095179A (en) | 1983-10-31 | 1983-10-31 | Intake device of internal-combustion engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6095179A JPS6095179A (en) | 1985-05-28 |
| JPH041186B2 true JPH041186B2 (en) | 1992-01-10 |
Family
ID=16464555
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58202870A Granted JPS6095179A (en) | 1983-10-31 | 1983-10-31 | Intake device of internal-combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6095179A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20160067401A1 (en) | 2013-03-14 | 2016-03-10 | Stryker Corporation | Medical/surgical lavage unit with a handpiece having a barrel that can be pivoted relative to the handgrp |
-
1983
- 1983-10-31 JP JP58202870A patent/JPS6095179A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6095179A (en) | 1985-05-28 |
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