JPS63201318A - Supercharging type four-cycle engine - Google Patents
Supercharging type four-cycle engineInfo
- Publication number
- JPS63201318A JPS63201318A JP3427587A JP3427587A JPS63201318A JP S63201318 A JPS63201318 A JP S63201318A JP 3427587 A JP3427587 A JP 3427587A JP 3427587 A JP3427587 A JP 3427587A JP S63201318 A JPS63201318 A JP S63201318A
- Authority
- JP
- Japan
- Prior art keywords
- stroke
- intake
- cylinder
- pistons
- intake air
- 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
- 238000002485 combustion reaction Methods 0.000 claims abstract description 12
- 230000006835 compression Effects 0.000 abstract description 5
- 238000007906 compression Methods 0.000 abstract description 5
- 235000014676 Phragmites communis Nutrition 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
Classifications
-
- 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
- F02B75/02—Engines characterised by their cycles, e.g. six-stroke
- F02B2075/022—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle
- F02B2075/025—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle two
-
- 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
- F02B75/02—Engines characterised by their cycles, e.g. six-stroke
- F02B2075/022—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle
- F02B2075/027—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle four
Landscapes
- Supercharger (AREA)
Abstract
Description
【発明の詳細な説明】
囚 産業上の利用分野
この発明は、２気筒によるクランク室過給式４サイクル
エンジンに関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application This invention relates to a two-cylinder crank chamber supercharged four-stroke engine.
ω） 従来の技術
従来、４サイクルエンジンに過給を行うものと伺
して、圧諸機を外設して過給を行うターボチャージャー
やスーパーチャージャーなどが知られる。ω) Conventional technology Conventionally, turbochargers and superchargers, which supercharge a 4-cycle engine by installing external pressure devices, are known.
また、単気筒の４サイクルエンジンにおいて、圧縮行程
と排気行程におけるピストン上昇時の負圧を利用して吸
気をクランク室に吸入し、これを吸気行程におけるピス
トン下降時に燃焼室内に圧送する過給式４サイクルエン
ジンは知られる。In addition, in a single-cylinder four-stroke engine, a supercharging system uses negative pressure when the piston rises during the compression and exhaust strokes to draw intake air into the crank chamber, and then pumps it into the combustion chamber when the piston descends during the intake stroke. Four-stroke engines are known.
（Ｑ 発明が解決しようとする問題点
しかし、これら圧縮機を外設したものでは構造も複雑で
あり場所もとった。(Q. Problems that the invention aims to solve) However, these systems with external compressors had complicated structures and took up a lot of space.
また、単気筒の過給式４サイクルエンジンにおいては、
圧縮行程と排気行程でクランク室に吸気を吸入している
が、排気行程では圧縮行程で吸入した吸気がクランク室
内にあるためほとんど吸入できず、実質上は１行程容積
分会どの吸気しか吸入できず燃焼室に送り込むことがで
きなかった。In addition, in a single-cylinder supercharged 4-stroke engine,
Intake air is sucked into the crank chamber during the compression stroke and exhaust stroke, but in the exhaust stroke, the intake air taken in during the compression stroke is inside the crank chamber, so almost no intake can be taken in, and in reality, only a portion of the intake air can be taken in per stroke volume. It was not possible to feed it into the combustion chamber.
従って、過給というよりは吸気抵抗を軽減する程度のも
のでしかなかったため、大巾な出力の向上は期待できな
かった。Therefore, rather than supercharging, it only served to reduce intake resistance, and no significant improvement in output could be expected.
ρ）問題を解決するための手段
従来のものがもつ以上のような問題を解決するために、
この発明は次のような構成にした。ρ) Means for solving problems In order to solve problems such as those that conventional methods have,
This invention has the following configuration.
２個以上の偶数で複数のシリンダーを持つ多気筒４サイ
クルエンジンにおいて、２個のシリンダーを１対とし、
この２個のシリンダーにおいて、ピストンは上死点及び
下死点を共にするものとし行程においては相互するもの
とし、クランク室を共有のものとし、このクランク室に
吸入バルブを介して連なる吸入通路を設け、このクラン
ク室より各シリンダーに吸気バルブを介して燃焼室に連
なる吸気通路を設けたことを特徴とする。In a multi-cylinder 4-cycle engine that has a plurality of cylinders with an even number of 2 or more, two cylinders are considered as a pair,
In these two cylinders, the pistons have the same top dead center and bottom dead center and are mutually connected during the stroke, and the crank chamber is shared, and an intake passage is connected to this crank chamber via an intake valve. The engine is characterized in that an intake passage is provided which connects the crank chamber to the combustion chamber via an intake valve in each cylinder.
■ 作用及び実施例
本発明の作用及び実施例を、図面を参照しながら説明す
る。■ Effects and Examples Effects and Examples of the present invention will be explained with reference to the drawings.
（第１実施例）
第１図は本発明を水平対向２気筒エンジンに実施したも
のであり、第２図はこの実施例における各シリンダーの
行程及びクランク室の状態を表にしたものである。(First Embodiment) FIG. 1 shows the present invention implemented in a horizontally opposed two-cylinder engine, and FIG. 2 shows a table showing the strokes of each cylinder and the state of the crank chamber in this embodiment.
図面で（１）は気化器、（２）は吸入通路、（３）は吸
入バルブ、（４）はクランク室、（５）及び（６）は吸
気通路、（７）及び（８）は燃焼室、（９）及びαＱは
吸気バルブ、ａυ及び（１２）は排気バルブ、０３及び
０４）は排気通路、（ｔ５）及びＯｅはピストン、 （
１７）及び０ｇＪはシリンダー、Ｈ及び■はコネクティ
ングロッド、（２Ｂはクランクシャフトを示す。In the drawing, (1) is the carburetor, (2) is the intake passage, (3) is the intake valve, (4) is the crank chamber, (5) and (6) are the intake passages, and (7) and (8) are the combustion units. chamber, (9) and αQ are intake valves, aυ and (12) are exhaust valves, 03 and 04) are exhaust passages, (t5) and Oe are pistons, (
17) and 0gJ are cylinders, H and ■ are connecting rods, (2B is a crankshaft.
この発明によれば、１対とした２個のシリンダーａη及
び０秒において、ピストン（１５及び０６）は上死点及
び下死点を共にするものとし、行程においては相互する
ものとし、クランク室（４）を共有のものとし、このク
ランク室（４）に気化器（１）よシ吸入バルブ（３）を
介して連なる吸入通路（２）を設け、このクランク室（
４）より各シリンダーαη及び０印に吸気バルブ（９）
及びα１を介して燃焼室（力及び（８）に連なる吸気通
路（５）及び（６）を設けるものとしている。According to this invention, in the pair of two cylinders aη and 0 seconds, the pistons (15 and 06) have the same top dead center and bottom dead center, and are mutually located in the stroke, and the crank chamber (4) is shared, and this crank chamber (4) is provided with an intake passage (2) that is connected to the carburetor (1) via an intake valve (3).
4) Intake valve (9) at each cylinder αη and 0 mark
Intake passages (5) and (6) are provided which are connected to the combustion chamber (force and (8)) via α1 and α1.
従って、ピストン（１９及び（＋６１上昇時、吸入バル
ブ（３）が開き、吸気はピスト７０句及びＯｅの２個の
ピストン上昇時の負圧によって、吸入通路（２）を通り
クランク室（４）内に吸入される。Therefore, when the pistons (19 and (+61) rise, the intake valve (3) opens, and the intake air passes through the intake passage (2) and into the crank chamber (4) due to the negative pressure when the two pistons (piston 70 and Oe) rise. inhaled into the body.
この時、片方のシリンダーαＤは排気行程を行いもう片
方のシリンダー（１樟は圧縮行程を行っている。At this time, one cylinder αD is undergoing an exhaust stroke and the other cylinder (1st cylinder is undergoing a compression stroke).
よって、この時クランク室（４）内には２行程容積分の
吸気が吸入される。Therefore, at this time, two stroke volumes of intake air are drawn into the crank chamber (4).
次に、ピストン（１５１及び（１６）下降時、吸入バル
ブ（３）が閉じ、クランク室（４）内に吸入した吸気は
ピストン（１つ及ヒＱ６）の２個のピストンによって圧
縮される。Next, when the pistons (151 and (16) descend), the intake valve (3) closes and the intake air sucked into the crank chamber (4) is compressed by the two pistons (one and one Q6).
この時、片方のシリンダー（１７）は吸気行程を行いも
う片方のシリンダー０８は膨張行程を行っている。At this time, one cylinder (17) is performing an intake stroke and the other cylinder 08 is performing an expansion stroke.
従って、クランク室（４）で圧縮された吸気は吸気通路
（５）を通り片方のシリンダーＱＤの燃焼室（７）内に
圧送される。Therefore, the intake air compressed in the crank chamber (4) is forced into the combustion chamber (7) of one cylinder QD through the intake passage (5).
なお、この行程においてピストンＱＳ及びＯｅの２つの
ピストンによって圧縮された２行程容積分の吸気が１つ
の燃焼室（７）内に圧送される。In this stroke, two stroke volumes of intake air compressed by the two pistons QS and Oe are forced into one combustion chamber (7).
この発明に係る過給式４サイクルエンジンではこの行程
が２つのシリンダーαη及び（Ｉｓにおいて相互に繰り
返されるため、大巾な過給効果を得ることができる。In the supercharged four-stroke engine according to the present invention, this stroke is repeated in the two cylinders αη and (Is), so a wide supercharging effect can be obtained.
（第２実施例）
第６図及び第４図は本発明を直列２気筒エンジンに実施
したものであシ、構成及び作用は第１実施例と同じであ
る。(Second Embodiment) FIGS. 6 and 4 show the present invention implemented in an in-line two-cylinder engine, and the structure and operation are the same as in the first embodiment.
なお、吸入バルブ（３）には、クランク室の負圧に応動
して開くリードバルブ、穴を設けたシャフトを回転させ
て吸入通路（２）を開閉するシャフトロータリーバルブ
、切り欠きを設けた円板を回転させて吸入通路（２）を
開閉するディスクロータリーバルブ、ピストンによって
吸入通路（２）を開閉するピストンバルブなどを使用す
ることができる。The intake valve (3) includes a reed valve that opens in response to negative pressure in the crank chamber, a shaft rotary valve that opens and closes the intake passage (2) by rotating a shaft with a hole, and a circular valve with a notch. A disc rotary valve that opens and closes the suction passage (2) by rotating a plate, a piston valve that opens and closes the suction passage (2) using a piston, etc. can be used.
（Ｂ 発明の効果
本発明に係る過給式４サイクルエンジンでは、２個のピ
ストンにより吸入し圧縮された２行程容積分の吸気を１
つの燃焼室に圧送するため大巾な過給効果を得ることが
でき、大巾に出力が向上する効果を有する。(B Effect of the Invention In the supercharged four-stroke engine according to the present invention, two stroke volumes of intake air taken in and compressed by two pistons are
Since the fuel is fed under pressure to two combustion chambers, a wide range of supercharging effects can be obtained, which has the effect of greatly increasing output.
また、外股の過給機に比べ構造が非常に簡単であシ過給
機を設けるための場所も必要としない。In addition, the structure is very simple compared to an external supercharger, and no space is required for installing the supercharger.
第１図は本発明の第１実施例の断面図、第２図は第１実
施例における各シリンダーの行程及びクランク室の状態
を示す表、第３図は本発明の第２実施例の側断面図、第
４図は第３図のＡ−Ａ線裁断面図である。
（２）・・・吸入通路 （３）・・・吸入バルブ （４
）・・・クランク室 （５）及び（６）・・・吸気通路
（力及び（８）・・・燃焼室（９）及び（１■・・・
吸気バルブ ａ９及びαｅ・・・ピストンαｎ及び（Ｉ
Ｆｊ・・・シリンダー
特許出願人 高 月 龍 三
笥２図
躬３図
△」Fig. 1 is a sectional view of the first embodiment of the present invention, Fig. 2 is a table showing the stroke of each cylinder and the state of the crank chamber in the first embodiment, and Fig. 3 is a side view of the second embodiment of the invention. The cross-sectional view, FIG. 4, is a cross-sectional view taken along the line A--A in FIG. 3. (2)...Suction passage (3)...Suction valve (4
)...Crank chamber (5) and (6)...Intake passage (force and (8)...Combustion chamber (9) and (1)...
Intake valve a9 and αe...Piston αn and (I
Fj... Cylinder patent applicant Ryu Takatsuki Miyan 2 drawing 3 △"
Claims (1)
クルエンジンにおいて、２個のシリンダーを１対とし、
この２個のシリンダーにおいて、ピストンは上死点及び
下死点を共にするものとし行程においては相互するもの
とし、クランク室を共有のものとし、このクランク室に
吸入バルブを介して連なる吸入通路を設け、このクラン
ク室より各シリンダーに吸気バルブを介して燃焼室に連
なる吸気通路を設けたことを特徴とする過給式４サイク
ルエンジン。In a multi-cylinder 4-cycle engine that has a plurality of cylinders with an even number of 2 or more, two cylinders are considered as a pair,
In these two cylinders, the pistons have the same top dead center and bottom dead center and are mutually connected during the stroke, and the crank chamber is shared, and an intake passage is connected to this crank chamber via an intake valve. A supercharged four-stroke engine characterized in that an intake passage is provided in each cylinder from the crank chamber to the combustion chamber via an intake valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3427587A JPS63201318A (en) | 1987-02-16 | 1987-02-16 | Supercharging type four-cycle engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3427587A JPS63201318A (en) | 1987-02-16 | 1987-02-16 | Supercharging type four-cycle engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63201318A true JPS63201318A (en) | 1988-08-19 |
Family
ID=12409609
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3427587A Pending JPS63201318A (en) | 1987-02-16 | 1987-02-16 | Supercharging type four-cycle engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63201318A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4226925A1 (en) * | 1992-08-14 | 1994-02-17 | Aco Auto Hobby Freizeitbedarf | Four-stroke IC engine with gas-tight crankcase - has feed line for each cylinder head fitted with second throttle element |
-
1987
- 1987-02-16 JP JP3427587A patent/JPS63201318A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4226925A1 (en) * | 1992-08-14 | 1994-02-17 | Aco Auto Hobby Freizeitbedarf | Four-stroke IC engine with gas-tight crankcase - has feed line for each cylinder head fitted with second throttle element |
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