JPS60113059A - Intake-air device in v-type engine - Google Patents
Intake-air device in v-type engineInfo
- Publication number
- JPS60113059A JPS60113059A JP58222806A JP22280683A JPS60113059A JP S60113059 A JPS60113059 A JP S60113059A JP 58222806 A JP58222806 A JP 58222806A JP 22280683 A JP22280683 A JP 22280683A JP S60113059 A JPS60113059 A JP S60113059A
- Authority
- JP
- Japan
- Prior art keywords
- intake
- air
- cylinder
- type engine
- inlet pipe
- 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.)
- Pending
Links
- 239000000446 fuel Substances 0.000 abstract description 4
- 239000000203 mixture Substances 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000006200 vaporizer Substances 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
- F02M13/00—Arrangements of two or more separate carburettors; Carburettors using more than one fuel
- F02M13/02—Separate carburettors
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B75/00—Other engines
- F02B75/16—Engines characterised by number of cylinders, e.g. single-cylinder engines
- F02B75/18—Multi-cylinder engines
- F02B75/22—Multi-cylinder engines with cylinders in V, fan, or star arrangement
-
- 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
- F02M35/16—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines characterised by use in vehicles
- F02M35/162—Motorcycles; All-terrain vehicles, e.g. quads, snowmobiles; Small vehicles, e.g. forklifts
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)
Abstract
Description
【発明の詳細な説明】
本発明は■型エンジンの吸気装置に関し、特にエアクリ
ーナに連通した吸気チャンバーを介しエアーを気化器に
吸入させるようにした吸気装置の改良に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an intake system for a Type 1 engine, and more particularly to an improvement in the intake system in which air is sucked into a carburetor through an intake chamber communicating with an air cleaner.
第１図は従来の■型エンジンの吸気装置を示す要部破断
面図で、特に自動二輪車に搭載した■型エンジン１につ
いて示している。FIG. 1 is a cutaway sectional view of a main part showing an intake system of a conventional ■-type engine, and particularly shows a ■-type engine 1 mounted on a motorcycle.
この■型エンジン１はクランク軸を車体２の進行方向（
矢印Ａ）に対し横方向に配置した横置■型４気筒エンジ
ンで、車体２の前方と後方とにそれぞれＶ字形状に配置
されたシリンダプロ・ツク３゜４間には、各気筒ごとに
配置された気化器５が配設され、さらにそれらの気化器
５の上方に吸気子ヤンバー６が配置されている。前記気
化器５の各インレットポート５ａには、インレ・ントパ
イプ７が連結され、該パイプは吸気チャンノく一６内に
開口されている。なお、第１図で符号８は、前記吸気チ
ャンバー６に連通したエアクリーナ、３ａ。This ■ type engine 1 has a crankshaft in the traveling direction of the vehicle body 2 (
It is a horizontal type 4-cylinder engine arranged laterally to arrow A), and each cylinder has a cylinder pro-tsuku 3 and 4 arranged in a V-shape at the front and rear of the vehicle body 2, respectively. The carburetors 5 are disposed, and an intake element yambar 6 is disposed above the carburetors 5. An inlet pipe 7 is connected to each inlet port 5a of the carburetor 5, and the pipe opens into an intake channel 6. In FIG. 1, reference numeral 8 denotes an air cleaner 3a that communicates with the intake chamber 6.
４ａは各シリンダブロック３，４に形成されたインレッ
トポートである。4a is an inlet port formed in each cylinder block 3,4.
ところで、上述した従来の吸気装置によると、エアクリ
ーナ８から吸引したエアーを吸気チャンバー６内で集合
し、そこから各気化器５によって吸引させる構成のため
、吸気チャンバー６の容積が小さいと、吸気チャンバー
６内で吸気干渉が発生し易すく、この吸気干渉が発生す
ると、各気筒間の空燃比が乱れて■型エンジン１の出力
低下を招来する。By the way, according to the conventional intake device described above, since the air sucked from the air cleaner 8 is collected in the intake chamber 6 and is sucked from there by each vaporizer 5, if the volume of the intake chamber 6 is small, the intake chamber Intake interference is likely to occur in the engine 6, and when this intake interference occurs, the air-fuel ratio between each cylinder is disturbed, resulting in a decrease in the output of the type engine 1.
一方、上述した吸気チャンバー６内で発生する吸気干渉
を防止するためには、吸気チャンバー６の容積を大きく
すればよいが、吸気チャンバー６の上方には車体フレー
ム２のタンクレール２ａ（第１図）が位置しているため
、この吸気チャンバー６の容積を大きくすることは出来
なかった。On the other hand, in order to prevent the intake air interference occurring within the intake chamber 6 as described above, the volume of the intake chamber 6 may be increased. ), it was not possible to increase the volume of this intake chamber 6.
また、■型エンジン１の各気筒位置（＃１．＃２゜＄３
．＃４）を示す第２図の概念図のように、燃焼順序が＃
１→＃４→＃３→＃２→＃１で、その間のクランク位相
角度が＃１→＃４で２７８、＃４→＃３で８２、＃３→
＃２で２７８、＃２→＃１で８２の場合、＃１→＃４と
＃３→＃２の時はクランク位相角度が比較的大きいので
、各気筒とも吸気干渉を受けにくいが、＃４→＃３と＃
２→＃１の時はクランク位相角度が小さいので特に車体
２の後方をこ位置する気筒＃１．＃３が吸気、干渉を受
けやすい。In addition, each cylinder position of type engine 1 (#1.#2゜＄3
．． #4) As shown in the conceptual diagram in Figure 2, the combustion order is #4).
1 → #4 → #3 → #2 → #1, the crank phase angle between them is 278 for #1 → #4, 82 for #4 → #3, and 82 for #3 →
In the case of 278 for #2 and 82 for #2 → #1, the crank phase angle is relatively large when #1 → #4 and #3 → #2, so each cylinder is less susceptible to intake interference, but #4 →#3 and #
2→#1, the crank phase angle is small, so especially cylinder #1, which is located at the rear of the vehicle body 2. #3 is susceptible to intake and interference.
本発明は上述した従来の問題点に鑑み、吸気チャンバー
内に発生する吸気干渉を可及的に防止し、吸引されたエ
アーを均等に分配し得るようにした■型エンジンの吸気
装置を提供することを目的とするもので、その特徴とす
るところは、吸気チャンバー内に配置したインレットパ
イプのウチ、吸気干渉を受けやすい気筒に連通したイン
レットパイプの吸気口を吸気チャンバー内に流入するエ
アーの流れに対向するように延設し、もって吸気チャン
バー内に流入するエアーのうち、その一部を強制的に吸
気干渉を受けやすい気筒に連通したインレットパイブ内
に案内させるようにしたものである。In view of the above-mentioned conventional problems, the present invention provides an intake system for a Type 2 engine that prevents intake interference occurring in the intake chamber as much as possible and evenly distributes sucked air. The main feature of this system is that the air flow that flows into the intake chamber through the intake port of the inlet pipe located in the intake chamber, which is connected to the cylinder that is susceptible to intake interference. The air intake chamber is arranged so as to face the intake chamber, so that a portion of the air flowing into the intake chamber is forcibly guided into an inlet pipe that communicates with a cylinder that is susceptible to intake interference.
以下、本発明に係る吸気装置の一実施例を詳述する。Hereinafter, one embodiment of the intake device according to the present invention will be described in detail.
第３図は本発明の吸気装置を示すＶ型エンジン１の要部
破断面図で、第１図と同一部分を同一符号で示Ｌ７てい
る。FIG. 3 is a cross-sectional view of essential parts of the V-type engine 1 showing the intake system of the present invention, and the same parts as in FIG. 1 are designated by the same reference numerals L7.
この■型エンジン１では、吸気チャンバー６内に配置さ
れたインレットパイプのうち、吸気干渉の影響を受けや
すい気筒に連通ずるインレットパイプ１０は、その吸気
口１０ａがエアクリーナ８から吸気チャンバー６内に吸
引されるエアーＢ、Ｃの流れに対向するように延設され
ている。したがって、吸気チャンバー６内に吸引される
エア−Ｂ。In this ■-type engine 1, among the inlet pipes arranged in the intake chamber 6, the inlet pipe 10 that communicates with the cylinder that is susceptible to intake air interference has its intake port 10a sucking air into the intake chamber 6 from the air cleaner 8. It extends so as to face the flow of air B and air C. Therefore, air-B is drawn into the intake chamber 6.
Ｃのうちその一部（矢印Ｃ）は、優先的に吸気口１０ａ
を介しインレットパイプ１０内Ｃご案内されることとな
り、このため吸気干渉によってエアの供給量が不足する
気筒ヘインレットパイプ１０によって積極的にエアーが
分配されることとなる。A part of C (arrow C) is preferentially connected to the intake port 10a.
As a result, air is actively distributed by the cylinder inlet pipe 10 where the air supply amount is insufficient due to intake air interference.
なお、上記実施例では、本発明の吸気装置を横１４Ｖ型
４気筒エンジン１に適用した場合について述べたが、勿
論本発明は上記実施例に限定されることなく、Ｖ型エン
ジンで、かつ７字型状に配置したシリンタブロック間に
吸気チャンバーを介して気化器を配置するようにした構
成であれば、気筒数、あるいは横置、縦置等の■型エン
ジンの型式にかかわらず、いかなる■型エンジンに適用
しても良い。In the above embodiment, a case has been described in which the intake system of the present invention is applied to a horizontal 14V type 4-cylinder engine 1, but the present invention is of course not limited to the above embodiment, and is applicable to a V type engine and a 7-cylinder engine. If the configuration is such that the carburetor is placed between cylinder blocks arranged in a letter shape, it can be used regardless of the number of cylinders or the model of the ■-type engine, such as horizontal or vertical installation. ■It may be applied to type engines.
本発明は上述したようｌこ、吸気チャンバー内に配置さ
れたインレットパイプの形状を変えることによって、吸
気干渉によりエアーの供給量が不足する■型エンジンの
各気筒へ積極的にエアーが供給されるので、各気筒ごと
に吸引される混合気の空燃比を均一にしてエンジンの出
力を向上させることが出来る。As described above, the present invention enables air to be actively supplied to each cylinder of a type engine where the amount of air supplied is insufficient due to intake interference by changing the shape of the inlet pipe arranged in the intake chamber. Therefore, it is possible to equalize the air-fuel ratio of the air-fuel mixture sucked into each cylinder and improve the output of the engine.
第１図は従来の吸気装置を示す■型エンジンの要部破断
面図、第２図は■型エンジンの各気筒の配置位置示す概
念図、第３図は本発明の吸気装置を示す■型エンジンの
要部破断面図である。
１・・■型エンジン、３，４・・・シリンダブロック、
５・・・気化器、６・・・吸気チャンバー、７，１０・
・・インテークパイプ、８・・・エアクリーナ、＃１．
＃２゜＃３ 、 ＃４・・・気筒。Fig. 1 is a cutaway cross-sectional view of the main parts of a ■-type engine showing a conventional intake system, Fig. 2 is a conceptual diagram showing the arrangement position of each cylinder of a ■-type engine, and Fig. 3 is a ■-type engine showing the intake system of the present invention. FIG. 2 is a cutaway cross-sectional view of the main parts of the engine. 1... ■type engine, 3, 4... cylinder block,
5... Carburizer, 6... Intake chamber, 7,10.
...Intake pipe, 8...Air cleaner, #1.
#2゜#3, #4...Cylinder.
Claims (1)
吸気チャンバーとを配置すると々もに、この吸気チャン
バー内に前記気化器のインレットパイプをそれぞれ臨ま
せ、エアクリーナから取入れたエアーを一旦吸気チャン
バーに導びき、そのエアーを吸気子ヤンバーから各気化
器へ分配するようにしたＶ型エンジンの吸気装置におい
て、前記インレットパイプのうち、前記吸気チャンバー
内で吸気干渉を受けやすい気筒のインレットパイプの吸
気口を、前記吸気チャンバー内に流入するエアーの流れ
に対向するように延設したことを特徴とする■型エンジ
ンの吸気装置。A carburetor and an intake chamber are arranged between the cylinder blocks arranged in a figure 7 shape, and the inlet pipes of the carburetors are respectively faced into the intake chamber, so that the air taken in from the air cleaner is temporarily transferred to the intake chamber. In an intake system for a V-type engine, in which the air is guided to the air and distributed from an intake element to each carburetor, the intake air in the inlet pipe of a cylinder that is susceptible to intake air interference within the intake chamber, among the inlet pipes. 2. An intake device for a type engine, characterized in that an opening extends to face the flow of air flowing into the intake chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58222806A JPS60113059A (en) | 1983-11-25 | 1983-11-25 | Intake-air device in v-type engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58222806A JPS60113059A (en) | 1983-11-25 | 1983-11-25 | Intake-air device in v-type engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60113059A true JPS60113059A (en) | 1985-06-19 |
Family
ID=16788184
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58222806A Pending JPS60113059A (en) | 1983-11-25 | 1983-11-25 | Intake-air device in v-type engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60113059A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU645102B2 (en) * | 1990-07-03 | 1994-01-06 | Tsugio Nagata | Method of and device for providing compressed air and water pumping device using air thus compressed |
-
1983
- 1983-11-25 JP JP58222806A patent/JPS60113059A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU645102B2 (en) * | 1990-07-03 | 1994-01-06 | Tsugio Nagata | Method of and device for providing compressed air and water pumping device using air thus compressed |
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