JPS5977034A - Supercharging system internal-combustion engine - Google Patents
Supercharging system internal-combustion engineInfo
- Publication number
- JPS5977034A JPS5977034A JP18655082A JP18655082A JPS5977034A JP S5977034 A JPS5977034 A JP S5977034A JP 18655082 A JP18655082 A JP 18655082A JP 18655082 A JP18655082 A JP 18655082A JP S5977034 A JPS5977034 A JP S5977034A
- Authority
- JP
- Japan
- Prior art keywords
- cylinders
- crankcase
- cylinder
- pistons
- stroke
- 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
Links
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
- F02B75/06—Engines with means for equalising torque
-
- 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
-
- 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
- F02B75/24—Multi-cylinder engines with cylinders arranged oppositely relative to main shaft and of "flat" type
- F02B75/243—Multi-cylinder engines with cylinders arranged oppositely relative to main shaft and of "flat" type with only one crankshaft of the "boxer" type, e.g. all connecting rods attached to separate crankshaft bearings
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Supercharger (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は、4サイクルの内燃機関において、そのクラン
クケースを、各気筒に対する吸入空気の圧縮過給室に構
成した過給式内燃機関に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a four-stroke internal combustion engine in which the crankcase is configured as a compression and charging chamber for intake air for each cylinder.
ピストン式内燃機関においてクランク軸を収容したクラ
ンクケースの容積は、ピストンの往復動によって大きく
なったシ小さくなったシするように増減するから、この
容積の増減を利用して4サイクル機関における吸入空気
を圧縮することによって過給を行なうことは、先行技術
としての特公昭50−378048 C特開昭48−7
116号〕公報等によって提案されている。In a piston-type internal combustion engine, the volume of the crankcase that houses the crankshaft increases and decreases due to the reciprocating motion of the piston, so this increase and decrease in volume is used to control the intake air in a 4-cycle engine. Supercharging by compressing the
No. 116], etc.
ところが、この先行技術の4サイクル内燃機関は、点火
順序を360°ずらせた2つの気筒を一本のり−):7
り軸に対してその軸方向に列状に配設する一方、固気筒
におけるピストンを同方向に同時に往復動させることに
より、両ビストシの上昇時にクランクケース内に逆止弁
を介して吸込んだ吸入空気を、両じストシの下降時に、
おいて一方の気筒に圧縮して供給するようにしたもので
あって、2つの気筒におけるピストンが同方向に同時に
往復動するから、その往復動に対する運動慣性が著しく
不釣合で、機関に大きな振動を発生することになり、こ
の運動慣性の不釣合による振動を消去するには大きなバ
ランスウェイトを設けたり、バランス軸を設けたシしな
ければならないから、機関の重量が重く且つ機関が著し
く大型化するのであった。However, this prior art four-stroke internal combustion engine uses two cylinders with ignition orders shifted by 360 degrees into one cylinder.
By simultaneously reciprocating the pistons in the solid cylinder in the same direction, the suction that is drawn into the crankcase through the check valve when both cylinders are raised is When the air is lowered,
Since the pistons in both cylinders reciprocate in the same direction at the same time, the kinetic inertia against the reciprocating motion is significantly unbalanced, causing large vibrations in the engine. In order to eliminate the vibration caused by the unbalance of the kinetic inertia, it is necessary to install a large balance weight or a balance shaft, which increases the weight of the engine and significantly increases the size of the engine. there were.
本発明は、前記した先行技術のように2つの気筒をペア
とし、固気筒におけるヒストンの往復動に伴うクランク
ケース容積の増減によって、固気筒に対1−て交互に過
給を行なうようにした4サイクル内燃機関において、固
気筒を、クランクヒシ位置を1800ずらせた水平対向
型に配設して、固気筒の間にクランク軸を収容するクラ
ンクケースを設け、固気筒のヒストンが前記クランクケ
ースに向って互に接近したのち互に離れるように往復動
するように構成することによシ、ヒストンの往復動によ
る運動慣性の不釣合を少なくして、機関の小型・軽量化
を図ると共に機関に対する吸入効率及び過給効率の向上
と図ったものであ3・。。In the present invention, as in the prior art described above, two cylinders are paired, and supercharging is alternately performed for each solid cylinder by increasing and decreasing the crankcase volume due to the reciprocating movement of histones in the solid cylinder. In a four-stroke internal combustion engine, the solid cylinders are arranged in a horizontally opposed manner with the crankshaft positions shifted by 1800 degrees, and a crankcase for accommodating the crankshaft is provided between the solid cylinders, and the histones of the solid cylinders are directed toward the crankcase. By configuring the histones to reciprocate so that they approach each other and then move away from each other, the unbalance of kinetic inertia caused by the reciprocating motion of the histones is reduced, making the engine smaller and lighter, and increasing the suction efficiency for the engine. This is aimed at improving supercharging efficiency.3. .
次に本発明の一例を図面について説明すると、図におい
て(11F21はクランクケース(3)の左右両側に水
平対向に設けた気筒を示し、該固気筒(1) (2)は
、そ九ぞれシリ?7り(4,)(4,)、該シリ、17
タ内を往復動するヒストニア(51)(5,)、吸気弁
(7,)(7,)付き吸気ポート(61)C6,)、及
び排気弁(9K)(9,)付き排気ボート(81)(8
,)を備え、固気筒(11+21におけるヒストン(5
,)(52)を、前記クランクケース(3)内に固気筒
の軸線と直角方向に軸支したクランク軸(101におけ
るクランクピーJ(11□Mllz)に対してコネクチ
シジQ ’!Jド(12□)(12,)を介して連結す
るにおいて、両クランクピーJ(121)(122)を
180°ずらせて、固気筒fil (2)におけるごス
ト:J(5t)(5g)が互に接近したのち互に離れる
ように往復動するように構成すると共に、左側の1g1
気筒(1)が爆発行程のとき右側の第2気筒(2)が吸
気行程で、41iIJ1気筒(11が排気行程のとき第
2気筒(2)が圧縮行程で、第1気筒(1)が吸気行程
のとき第2気筒(2)が爆発行程であり、そして第1気
筒(1)が圧縮行程のとき第2気筒(2)が排気行程で
あるように構成する。Next, an example of the present invention will be explained with reference to the drawings. Siri?7ri(4,)(4,), said Siri, 17
Histonia (51) (5,) reciprocating in the tank, intake port (61) C6,) with intake valve (7,) (7,), and exhaust boat (81) with exhaust valve (9K) (9,). )(8
), and histones (5
, ) (52) is pivotally supported in the crankcase (3) in a direction perpendicular to the axis of the solid cylinder (101). □) When connecting via (12,), both crank pins J (121) and (122) are shifted by 180°, and the thrusts of solid cylinder fil (2): J (5t) (5g) are close to each other. After that, it is configured to reciprocate away from each other, and the left side 1g1
When cylinder (1) is on the explosion stroke, the second cylinder on the right side (2) is on the intake stroke, and when cylinder 11 is on the exhaust stroke, the second cylinder (2) is on the compression stroke, and the first cylinder (1) is on the intake stroke. The second cylinder (2) is configured to be in the explosion stroke during the stroke, and the second cylinder (2) is in the exhaust stroke when the first cylinder (1) is in the compression stroke.
そして、前記りうンクケース(3)を吸気導管(13,
)(1,3,)を介して固気筒fil (21における
吸気ホードC61)(62)に連通ずる一方、りうyク
ケース(3)にはエアクリーナOaからの吸気通路05
)を接続し、該吸気通路α9には気化器α0等の燃料供
給手段と気化器(1ωからクランクケース(3)の方向
にのみ開くようにした逆止弁αηを設けて成るものであ
る。Then, connect the re-unk case (3) to the intake conduit (13,
) (1, 3,) to the solid cylinder fil (21), while the air intake passage 05 from the air cleaner Oa is connected to the rear case (3).
), and the intake passage α9 is provided with fuel supply means such as a carburetor α0 and a check valve αη that opens only from the carburetor (1ω to the crankcase (3)).
この構成において、左側の第1気筒(1)が排気行程の
とき右側の@2気筒(2)は圧縮行程で固気筒のごスト
ニア(51)(5,〕は互に離れるように運動して、ク
ランクケース(3)の内容積が増大するから、クランク
ケース(3)内にはエアクリーナ(神からの空気が気化
器叫及び逆止弁αηを介して吸入され、次に第1気m
(1)が吸入行程で@2気筒(2)が爆発行程のとき固
気筒のヒストニア(5,)(5,)が互に接近するよう
に運動してクランクケース(3)の内容積が縮少するこ
とにょシ、先にクランクケース(3)内に吸込まれた吸
入空気を第1気筒(1)に圧送する。また、第1気筒(
1)が圧縮行程で第2気筒(2)が排気行程のときり5
−4クケース(3)内に空気を吸入し、次いで第1気筒
が爆発行程で第2気筒が吸気行程のとき、クランクケー
ス(3)内の吸入空気を第2気筒に圧送する作用を繰り
返すのであり、この場合、クランクケース(3)の内容
積の増加量は、一つの1jLft1における行程容積の
2倍で、これと略同じ量の空気を吸込んだのち己れを一
つの気筒に圧送するから、固気筒に対する吸入空気は圧
縮された状態になって、過給が行なわれるのである。In this configuration, when the first cylinder (1) on the left side is in the exhaust stroke, the second cylinder (2) on the right side is in the compression stroke, and the solid cylinders (51) (5,) move away from each other. , since the internal volume of the crankcase (3) increases, air from the air cleaner (air cleaner) is sucked into the crankcase (3) via the carburetor and the check valve αη, and then the first air
When (1) is in the suction stroke and @2 cylinder (2) is in the explosion stroke, the histonia (5,) (5,) of the solid cylinder move closer to each other and the internal volume of the crankcase (3) is reduced. After a short while, the intake air that was previously drawn into the crankcase (3) is forced into the first cylinder (1). Also, the first cylinder (
5 when 1) is in the compression stroke and the second cylinder (2) is in the exhaust stroke.
-4 The action of sucking air into the crankcase (3) and then force-feeding the intake air in the crankcase (3) to the second cylinder when the first cylinder is in the explosion stroke and the second cylinder is in the intake stroke is repeated. Yes, in this case, the increase in the internal volume of the crankcase (3) is twice the stroke volume in one 1jLft1, and after sucking in approximately the same amount of air, it pumps itself into one cylinder. The intake air to the solid cylinder is compressed and supercharging is performed.
そして、固気筒(1) [2)におけるじストシ(5m
)(5,)は、固気筒(11:2+をクランクケース(
3)に対して水平対向状に配設−したことによシ、水平
の一直線上を互に接近したのち互に離れるように往復動
して、一方のヒストンにおける運動慣性は、これと逆の
方向に運動する他方のごストシの運動慣性に釣合って、
両方の運動慣性が互に打消し合うことになるから、両ピ
ストンの往復動に関する運動慣性の一次の不釣合は発生
しなくなり、ヒストンの往復動に関する一次慣性不釣合
を消去するためのバラシスウェイト又はバラシス軸を廃
止することができるのであシ、また、固気筒は((2)
をクランクケース(3)に対して水平対向状に配設した
こ2によシ、クランクケース(3)は固気筒に対して兼
用になし、りうyクケース(3)のクランク軸方向の中
寸法(1)I/′i、前記した先行技術のように2つの
気筒をクランクケースに対してクランク軸方向に並設す
る場合よシも短かくなって、両気筒におけるピストンが
下死点にあるときのクランクケース内容積、つまシ、吸
入始め及び圧縮線り時の隙間体積は、先行技術の場合よ
シも小さくなるから、クランクケースでの吸入空気の圧
縮比を大きくできるのである。Then, the same stroke (5 m
) (5,) is a solid cylinder (11:2+) with a crankcase (
3), the kinetic inertia of one histone is the same as that of the opposite histone. In balance with the kinetic inertia of the other body moving in the direction,
Since both kinetic inertias cancel each other out, the first-order unbalance of kinetic inertia regarding the reciprocating motion of both pistons no longer occurs, and a balance weight or balasis is used to eliminate the first-order inertial unbalance regarding the reciprocating motion of the histones. Since the shaft can be abolished, the solid cylinder is also ((2)
The crankcase (3) is arranged horizontally opposite to the crankcase (3), and the crankcase (3) is also used for the solid cylinder, and the middle dimension of the rear case (3) in the crankshaft direction is (1) I/'i is shorter than when two cylinders are arranged side by side in the crankshaft direction with respect to the crankcase as in the prior art described above, and the pistons in both cylinders are at bottom dead center. At this time, the internal volume of the crankcase, the volume of the gap at the beginning of suction, and at the time of compression line are smaller than in the prior art, so the compression ratio of the intake air in the crankcase can be increased.
なお、前記実施例はエアクリーナa(からクランクケー
ス(3)への吸気通路(5)中に気化器(161等の燃
料供給手段を設けた場合であったが、燃料供給手段を前
記吸気通路α0に設けることに代えて、クランクケース
(3)から両気筒fil +21への吸気導管(13,
X132)中に設けても良いのであシ、また、クランク
ケース(3)に対して水平対向状に配設した両気筒fl
) +21を一ペアとし、・これを−木のクランク軸の
軸方向に複数ペア配設することによって、4気筒又は6
気筒等の偶数多気筒機関にすることが容易にできるので
ある。In the above embodiment, a fuel supply means such as a carburetor (161) was provided in the intake passage (5) from the air cleaner a (to the crankcase (3)), but the fuel supply means was provided in the intake passage α0. Instead of providing an intake pipe (13,
In addition, both cylinders fl arranged horizontally opposite to the crankcase (3) may be provided in the
) +21 as one pair, ・By arranging multiple pairs in the axial direction of the -wooden crankshaft, 4 cylinders or 6 cylinders
This makes it easy to create an engine with an even number of cylinders.
以上の通シ木発明は、2つの気筒を有するクランクケー
スに吸入した空気を、両気筒に対して交互に圧送するよ
うにした4サイクル内燃機関において、前記両気筒を前
記クランクケースの左右両側面に水平対向状に配設する
一方、両気筒におけるピストンをクランクケース内のク
ランク軸に、両ピストンが互に接近したのち互に離れる
ように往復動するようにクランクじシ位置を180°ず
らせて連結して成るもので、両気筒におけるじストシの
往復動による運動慣性の不釣合が少なく、クランク軸に
おけるバラシスウェイトをこの分だけ小さくしたり、バ
ランス軸を廃止したりすることができるから、機関を著
しく小型・軽量化できるのであシ、1−かもクランクケ
ースでの吸入空気の圧縮比が高くて、機関に対する吸入
効率及び過給効率を著しく向上できる効果を有する。The above invention provides a four-stroke internal combustion engine in which air taken into a crankcase having two cylinders is alternately pumped to both cylinders. The pistons in both cylinders are arranged horizontally opposite each other, and the crankshaft positions are shifted by 180 degrees so that the pistons in both cylinders move reciprocally toward the crankshaft in the crankcase, so that the pistons approach each other and then move away from each other. Because they are connected, there is less unbalance of kinetic inertia due to the reciprocating movement of the same cylinders in both cylinders, and the balance weight on the crankshaft can be reduced by this amount, or the balance shaft can be eliminated, so the engine Since the engine can be significantly reduced in size and weight, the compression ratio of the intake air in the crankcase is also high, which has the effect of significantly improving the intake efficiency and supercharging efficiency for the engine.
図面は本発明の実施例を示し、第1図は縦断正面図、第
2図は第1図の■−■視断面断面図る。
+1) +2)・・・気筒、(3)・・・クランクケー
ス、(5,)(52)・・・じストシ、flol−°°
クラシク軸、(ll、)l(112〕・・・クランクビ
シ、041・・・エアクリーナ、+151・・・吸気通
路。
特許出願人 タイハツ工業株式会社The drawings show an embodiment of the present invention, and FIG. 1 is a vertical front view, and FIG. 2 is a sectional view taken along the line 1--2 of FIG. +1) +2)... Cylinder, (3)... Crankcase, (5,) (52)... Same position, flol-°°
Classic shaft, (ll,)l (112)... crankbishi, 041... air cleaner, +151... intake passage. Patent applicant: Taihatsu Kogyo Co., Ltd.
Claims (1)
した空気を、固気筒に対して交互に圧送するようにした
4サイクル内燃機関において、前記固気筒を前記クラン
クケースの左右両側面に水平対向状に配設する一方、固
気筒におけるヒストニアをクランクケース内のクランク
軸に、両ピストンが互に接近したのち互に離れるように
往復動するようにクラシクヒシ位置を180°ずらせて
連結したことを特徴とする過給式内燃機関。(1) In a four-stroke internal combustion engine in which air taken into a crankcase having two cylinders is alternately pumped to the solid cylinders, the solid cylinders are horizontally opposed to each other on both left and right sides of the crankcase. On the other hand, the histonia in the solid cylinder is connected to the crankshaft in the crankcase with the position of the histonia shifted by 180 degrees so that both pistons move closer to each other and then move away from each other. A supercharged internal combustion engine.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18655082A JPS5977034A (en) | 1982-10-22 | 1982-10-22 | Supercharging system internal-combustion engine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18655082A JPS5977034A (en) | 1982-10-22 | 1982-10-22 | Supercharging system internal-combustion engine |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5977034A true JPS5977034A (en) | 1984-05-02 |
JPH0123652B2 JPH0123652B2 (en) | 1989-05-08 |
Family
ID=16190469
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP18655082A Granted JPS5977034A (en) | 1982-10-22 | 1982-10-22 | Supercharging system internal-combustion engine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5977034A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6153420A (en) * | 1984-08-23 | 1986-03-17 | Naoharu Yamada | Device for forcibly sending mixture in multiple cylinder 4 cycle internal-combustion engine for model |
JPS63195331A (en) * | 1987-02-07 | 1988-08-12 | Mitsuo Shinozaki | Horizontally operating engine |
JPH04209932A (en) * | 1990-12-12 | 1992-07-31 | Saitou Seisakusho:Yugen | Supercharge four-cycle model engine |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4836505A (en) * | 1971-09-16 | 1973-05-30 | ||
JPS56606A (en) * | 1979-06-15 | 1981-01-07 | Mitsubishi Electric Corp | Ultrasonic welding position detecting unit |
-
1982
- 1982-10-22 JP JP18655082A patent/JPS5977034A/en active Granted
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4836505A (en) * | 1971-09-16 | 1973-05-30 | ||
JPS56606A (en) * | 1979-06-15 | 1981-01-07 | Mitsubishi Electric Corp | Ultrasonic welding position detecting unit |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6153420A (en) * | 1984-08-23 | 1986-03-17 | Naoharu Yamada | Device for forcibly sending mixture in multiple cylinder 4 cycle internal-combustion engine for model |
JPS63195331A (en) * | 1987-02-07 | 1988-08-12 | Mitsuo Shinozaki | Horizontally operating engine |
JPH04209932A (en) * | 1990-12-12 | 1992-07-31 | Saitou Seisakusho:Yugen | Supercharge four-cycle model engine |
Also Published As
Publication number | Publication date |
---|---|
JPH0123652B2 (en) | 1989-05-08 |
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