JP2000328945A - Lead air control device for stratified scavenging two cycle engine - Google Patents
Lead air control device for stratified scavenging two cycle engineInfo
- Publication number
- JP2000328945A JP2000328945A JP11141285A JP14128599A JP2000328945A JP 2000328945 A JP2000328945 A JP 2000328945A JP 11141285 A JP11141285 A JP 11141285A JP 14128599 A JP14128599 A JP 14128599A JP 2000328945 A JP2000328945 A JP 2000328945A
- Authority
- JP
- Japan
- Prior art keywords
- air
- air control
- scavenging
- control valve
- carburetor
- 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
- 230000002000 scavenging effect Effects 0.000 title claims abstract description 38
- 239000012212 insulator Substances 0.000 claims abstract description 13
- 238000009413 insulation Methods 0.000 claims description 5
- 239000000446 fuel Substances 0.000 description 10
- 239000000203 mixture Substances 0.000 description 8
- 239000006200 vaporizer Substances 0.000 description 8
- 235000014676 Phragmites communis Nutrition 0.000 description 2
- 239000000567 combustion gas Substances 0.000 description 2
- 239000013585 weight reducing agent Substances 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 238000004904 shortening Methods 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Landscapes
- Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、層状掃気２サイク
ルエンジンの、掃気用の先導空気の量を制御する先導空
気制御装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a leading air control device for controlling the amount of leading air for scavenging in a stratified scavenging two-cycle engine.
【０００２】[0002]
【従来の技術】掃気用の先導空気の量を制御する空気制
御弁を有する層状掃気２サイクルエンジンの構成につい
ては、例えば特開平９−２６８９１７号公報に開示され
たものがある。同公報によれば、図４に示すように、空
気清浄器２６ｂと気化器２４ｂとの間に空気制御弁３３
ｂを挾着し、空気清浄器２６ｂと、空気制御弁３３ｂ
と、気化器２４ｂとを一体的に断熱を目的とするインシ
ュレータ３０ｂを介装して機関本体に取り付けた構成と
している。空気制御弁３３ｂは空気清浄器２６ｂにより
浄化された空気の量を制御しており、制御された空気は
接続管４０ｂを経由してシリンダ３内の掃気流路２１に
先導空気として導入される。2. Description of the Related Art The configuration of a stratified scavenging two-stroke engine having an air control valve for controlling the amount of leading air for scavenging is disclosed, for example, in Japanese Patent Application Laid-Open No. 9-268917. According to the publication, as shown in FIG. 4, an air control valve 33 is provided between the air purifier 26b and the vaporizer 24b.
b, the air purifier 26b and the air control valve 33b
And the carburetor 24b are integrally attached to the engine body with an insulator 30b for heat insulation interposed therebetween. The air control valve 33b controls the amount of air purified by the air purifier 26b, and the controlled air is introduced as leading air into the scavenging flow passage 21 in the cylinder 3 via the connection pipe 40b.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、上記特
開平９−２６８９１７号公報に開示された構成において
は、空気制御弁３３ｂを空気清浄器２６ｂと気化器２４
ｂとの間に挾着しているので、エンジン全体の全長が長
くなり、場積が大きくなる。したがって、このエンジン
を搭載した携帯用作業機（携帯用草刈機等）が大型にな
ると共に重くなり、取扱い上不利であるという問題があ
る。However, in the structure disclosed in Japanese Patent Application Laid-Open No. 9-268917, the air control valve 33b is connected to the air purifier 26b and the vaporizer 24.
b, the overall length of the entire engine is increased, and the area is increased. Therefore, there is a problem that a portable work machine (portable mower or the like) equipped with this engine becomes large and heavy, which is disadvantageous in handling.
【０００４】本発明は、上記の問題点に着目し、エンジ
ン全体の全長を短くし、コンパクトで軽量化が可能な層
状掃気２サイクルエンジンの先導空気制御装置を提供す
ることを目的としている。An object of the present invention is to provide a leading air control device for a stratified scavenging two-stroke engine that can reduce the overall length of the entire engine, and reduce the size and weight of the engine, focusing on the above problems.
【０００５】[0005]
【課題を解決するための手段、作用及び効果】上記の目
的を達成するために、本発明に係る層状掃気２サイクル
エンジンの先導空気制御装置の第１発明は、エンジンの
吸気ポートと気化器との間に断熱を目的としたインシュ
レータを挾着し、絞り弁を有する気化器と、掃気用の先
導空気の量を制御する空気制御弁とを別々に構成した層
状掃気２サイクルエンジンにおいて、前記空気制御弁を
インシュレータに設けた構成としている。In order to achieve the above object, a first invention of a leading air control apparatus for a stratified scavenging two-stroke engine according to the present invention comprises an engine intake port, a carburetor, A stratified scavenging two-stroke engine, in which an insulator for heat insulation is interposed therebetween and a carburetor having a throttle valve and an air control valve for controlling the amount of leading air for scavenging are separately provided, The control valve is provided on the insulator.
【０００６】上記構成によれば、吸気ポートと気化器と
の間に断熱のために挾着されたインシュレータに空気制
御弁を設けた構成としたため、限定されたスペース内で
容易に空気制御弁を取り付けることが可能となり、エン
ジン全体の全長を短くすることができ、コンパクトで、
軽量化が可能となる。[0006] According to the above configuration, the air control valve is provided on the insulator sandwiched between the intake port and the carburetor for heat insulation, so that the air control valve can be easily installed in a limited space. It is possible to install it, shortening the overall length of the entire engine, compact,
Weight reduction becomes possible.
【０００７】第２発明は、絞り弁を有する気化器と、掃
気用の先導空気の量を制御する空気制御弁とを別々に構
成し、気化器の吸入空気と先導空気とを清浄にするエア
クリーナを有する層状掃気２サイクルエンジンにおい
て、空気制御弁をエアクリーナに設けた構成としてい
る。A second aspect of the present invention is an air cleaner for separately cleaning a carburetor having a throttle valve and an air control valve for controlling the amount of leading air for scavenging, and for purifying intake air and leading air of the carburetor. In the stratified scavenging two-cycle engine having the structure, the air control valve is provided in the air cleaner.
【０００８】上記構成によれば、空気制御弁をエアクリ
ーナに設けた構成としたため、限定されたスペース内で
容易に空気制御弁を取り付けることが可能となり、エン
ジン全体の全長を短くすることができ、コンパクトで、
軽量化が可能となる。According to the above configuration, since the air control valve is provided in the air cleaner, the air control valve can be easily mounted in a limited space, and the overall length of the engine can be shortened. Compact,
Weight reduction becomes possible.
【０００９】[0009]
【発明の実施の形態】以下に、本発明に係る層状掃気２
サイクルエンジンの空気制御装置の実施形態について、
図１〜図３を参照して詳述する。BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, a layered scavenging device 2 according to the present invention will be described.
Regarding the embodiment of the air control device of the cycle engine,
This will be described in detail with reference to FIGS.
【００１０】図１は、第１実施形態の先導空気制御装置
１を有する層状掃気２サイクルエンジンの正面断面図で
ある。クランクケース２の上部に取着されたシリンダ３
にはピストン４が摺動自在に嵌入されており、クランク
ケース２に回転自在に取着されたクランクシャフト５と
ピストン４とはコネクティングロッド６により連結され
ている。シリンダ３の頂部には点火栓７が取着されてい
る。シリンダ３の内壁面に開口する排気ポート１０に接
続する排気通路１１にはマフラ１２が取着されている。
又、シリンダ３の内壁面の、排気ポート１０のやや下方
には掃気ポート２０が開口しており、掃気ポート２０
と、シリンダ３の下部及びクランクケース２で囲まれて
形成されるクランク室８とは掃気流路２１により接続さ
れている。掃気流路２１には、掃気用の先導空気を導入
する接続管４０がリードバルブ（図示せず）を介して接
続されている。シリンダ３の内壁面の下部にはクランク
室８に接続する吸気ポート２２が開口し、第１吸気通路
２３に接続している。本エンジンは、排気ポート６、掃
気ポート２０及び吸気ポート２２をピストン４の上下動
により開閉するピストンバルブ型エンジンである。吸気
ポート２２には断熱を目的とするインシュレータ３０を
介して気化器２４が取着され、気化器２４の吸気側はエ
アクリーナ２６に接続している。気化器２４にはバタフ
ライ型の絞り弁２５が設けられている。インシュレータ
３０には、気化器２４と第１吸気通路２３とを接続する
第２吸気通路３１と、先導空気用の空気通路３２とが設
けられている。空気通路３２の一側はエアクリーナ２６
に接続され、他側は掃気ポート２０と接続管４０により
接続されている。空気通路３２内には先導空気の量を制
御するバタフライ型の空気制御弁３３が設けられ、空気
制御弁３３と気化器２４の絞り弁２５とは図示しないリ
ンク装置により連結されて連動するようになっていて、
先導空気制御装置１を構成している。FIG. 1 is a front sectional view of a stratified scavenging two-cycle engine having a leading air control device 1 according to a first embodiment. Cylinder 3 mounted on top of crankcase 2
A piston 4 is slidably fitted into the crankcase 2, and a crankshaft 5 rotatably attached to the crankcase 2 and the piston 4 are connected by a connecting rod 6. A spark plug 7 is attached to the top of the cylinder 3. A muffler 12 is attached to an exhaust passage 11 connected to an exhaust port 10 opened on the inner wall surface of the cylinder 3.
A scavenging port 20 is opened slightly below the exhaust port 10 on the inner wall surface of the cylinder 3.
And a crank chamber 8 formed by being surrounded by a lower portion of the cylinder 3 and the crankcase 2 are connected by a scavenging flow passage 21. A connection pipe 40 for introducing scavenging leading air is connected to the scavenging flow path 21 via a reed valve (not shown). An intake port 22 connected to the crank chamber 8 opens at a lower portion of the inner wall surface of the cylinder 3 and is connected to a first intake passage 23. This engine is a piston valve type engine that opens and closes an exhaust port 6, a scavenging port 20, and an intake port 22 by vertically moving a piston 4. A carburetor 24 is attached to the intake port 22 via an insulator 30 for heat insulation, and the intake side of the carburetor 24 is connected to an air cleaner 26. The vaporizer 24 is provided with a butterfly type throttle valve 25. The insulator 30 is provided with a second intake passage 31 that connects the carburetor 24 and the first intake passage 23, and an air passage 32 for leading air. One side of the air passage 32 is an air cleaner 26.
The other side is connected to the scavenging port 20 by a connection pipe 40. A butterfly-type air control valve 33 for controlling the amount of leading air is provided in the air passage 32, and the air control valve 33 and the throttle valve 25 of the carburetor 24 are connected by a link device (not shown) so as to be linked with each other. It has become
The leading air control device 1 is configured.
【００１１】次に、作動について説明する。図１に示す
ピストン上死点位置においては混合気はシリンダ３の上
部で圧縮され、点火栓７により着火されると混合気は爆
発してピストン４を下方に押し下げる。この時点では掃
気ポート２０及び掃気流路２１にはエアクリーナ１５に
より浄化された先導空気が充満しており、クランク室８
には気化器２４により、燃料と、エアクリーナ２６によ
り浄化された空気とが混合された混合気が充満してい
る。ピストン４が下降すると先ず吸気ポート１２が閉
じ、クランク室８内の混合気は圧縮される。次に、排気
ポート１０が開いて燃焼ガスは排気通路１１を通り、マ
フラ１２を介して外部に排出される。続いて掃気ポート
２０が開き、圧縮されたクランク室８の圧力により先導
空気がシリンダ３内に流入し、残った燃焼ガスを排気ポ
ート１０から排出する。その後、クランク室８内の混合
気はシリンダ３内に流入するが、このときにはピストン
４は上昇して排気ポート１０は閉じられているため、混
合気が外部に排出されることはなく、排気ガスに含まれ
る炭化水素ＨＣの量は少なく、燃料の浪費も少ない。気
化器２４を通過する混合気の量は絞り弁２５により制御
され、空気通路３２を通過する先導空気の量は、空気制
御弁３３により制御され、絞り弁２５と空気制御弁３３
とは連動しているため、常に混合気の量と先導空気量と
のバランスが保たれ、最適な燃焼が行われる。Next, the operation will be described. At the piston top dead center position shown in FIG. 1, the air-fuel mixture is compressed at the upper part of the cylinder 3, and when ignited by the spark plug 7, the air-fuel mixture explodes and pushes the piston 4 downward. At this time, the scavenging port 20 and the scavenging passage 21 are filled with the leading air purified by the air cleaner 15, and the crank chamber 8
Is filled with an air-fuel mixture obtained by mixing a fuel and air purified by an air cleaner 26 by a carburetor 24. When the piston 4 descends, the intake port 12 is closed first, and the air-fuel mixture in the crank chamber 8 is compressed. Next, the exhaust port 10 is opened, and the combustion gas passes through the exhaust passage 11 and is discharged outside through the muffler 12. Subsequently, the scavenging port 20 is opened, leading air flows into the cylinder 3 by the compressed pressure of the crank chamber 8, and the remaining combustion gas is exhausted from the exhaust port 10. Thereafter, the air-fuel mixture in the crank chamber 8 flows into the cylinder 3. At this time, since the piston 4 is raised and the exhaust port 10 is closed, the air-fuel mixture is not discharged to the outside. Contains a small amount of hydrocarbon HC and consumes little fuel. The amount of air-fuel mixture passing through the vaporizer 24 is controlled by a throttle valve 25, and the amount of leading air passing through the air passage 32 is controlled by an air control valve 33. The throttle valve 25 and the air control valve 33
Are linked, the balance between the amount of air-fuel mixture and the amount of leading air is always maintained, and optimal combustion is performed.
【００１２】本実施形態に係る空気制御装置１は、上述
のようにインシュレータ３０内の先導空気用の空気通路
３２内に空気制御弁３３を設ける構成としたため、限定
したスペース内で場積をとらずに空気制御弁３３を設け
ることが可能となり、図１に示すエンジン全体の全長Ｌ
を短くすることができ、軽量でコンパクトな層状掃気２
サイクルエンジンを得ることができる。また、従来空気
清浄器と気化器との間に設けられていた一構成部品とし
ての空気制御弁を不要とするので、部品点数が少なく、
かつ気化器は一般品をそのまま利用できるので、コスト
を安くすることができる。尚、本実施形態に係るエンジ
ンの吸気方式はピストンバルブであるが、本発明はリー
ドバルブ又はロータリーバルブであっても適用可能であ
る。The air control device 1 according to the present embodiment has a configuration in which the air control valve 33 is provided in the air passage 32 for leading air in the insulator 30 as described above. It is possible to provide the air control valve 33 without using the entire length L of the entire engine shown in FIG.
And compact, layered scavenging 2
You can get a cycle engine. In addition, the need for an air control valve as one component that was conventionally provided between the air purifier and the vaporizer is eliminated, so the number of parts is small,
In addition, since a general product can be used as the vaporizer, the cost can be reduced. Although the intake system of the engine according to the present embodiment is a piston valve, the present invention can be applied to a reed valve or a rotary valve.
【００１３】図２は、第２実施形態の先導空気制御装置
１ａを有する層状掃気２サイクルエンジンの正面断面図
である。第１実施形態と同一構成要素には同一符号を付
して説明は省略し、異なる部分についてのみ説明する。
気化器２４は第２吸気通路３１を有するインシュレータ
３０ａを介して、シリンダ３に設けられた第１吸気通路
２３に接続しており、気化器２４の吸気側はエアクリー
ナ２６ａに接続している。エアクリーナ２６ａには空気
孔２７が設けられ、空気孔２７と掃気ポート２０とは接
続管４０ａにより接続されている。図３は図２のＡ−Ａ
矢視図であり、図２及び図３に示すようにエアクリーナ
２６ａの空気孔２７部にはプレート型の空気制御弁３３
ａが設けられている。空気制御弁３３ａは、一端部に固
設された軸３４を回動させることにより細い２点鎖線に
示すように回動して空気孔２７の開口面積を増減し、先
導空気量を制御する。気化器２４の絞り弁２５と空気制
御弁３３ａの軸３４とは図示しないリンク装置により連
結されて連動するようになっていて、先導空気制御装置
１ａを構成している。FIG. 2 is a front sectional view of a stratified scavenging two-cycle engine having a leading air control device 1a according to a second embodiment. The same components as those in the first embodiment are denoted by the same reference numerals, and description thereof will be omitted. Only different portions will be described.
The carburetor 24 is connected to a first intake passage 23 provided in the cylinder 3 via an insulator 30a having a second intake passage 31, and the intake side of the carburetor 24 is connected to an air cleaner 26a. The air cleaner 26a is provided with an air hole 27, and the air hole 27 and the scavenging port 20 are connected by a connection pipe 40a. FIG. 3 is AA of FIG.
2 and 3, a plate-type air control valve 33 is provided in the air hole 27 of the air cleaner 26a.
a is provided. The air control valve 33a rotates as shown by a thin two-dot chain line by rotating a shaft 34 fixed at one end to increase or decrease the opening area of the air hole 27 and control the amount of leading air. The throttle valve 25 of the carburetor 24 and the shaft 34 of the air control valve 33a are connected and linked by a link device (not shown), and constitute a leading air control device 1a.
【００１４】本実施形態に係る空気制御装置１ａは、上
述のようにエアクリーナ２６ａ内に空気制御弁３３ａを
設ける構成としたため、限定したスペース内で場積をと
らずに空気制御弁３３ａを設けることが可能となる。よ
って、図２に示すエンジン全体の全長Ｌを短くすること
ができ、軽量でコンパクトな層状掃気２サイクルエンジ
ンを得ることができる。また、従来空気清浄器と気化器
との間に設けられていた一構成部品としての空気制御弁
を不要とするので、部品点数が少なく、かつ気化器は一
般品をそのまま利用できるので、コストを安くすること
ができる。Since the air control device 1a according to the present embodiment has a configuration in which the air control valve 33a is provided in the air cleaner 26a as described above, the air control valve 33a can be provided without taking up space in a limited space. Becomes possible. Therefore, the overall length L of the entire engine shown in FIG. 2 can be reduced, and a lightweight and compact stratified scavenging two-cycle engine can be obtained. In addition, the need for an air control valve as one component, which has conventionally been provided between the air purifier and the vaporizer, is eliminated, so that the number of parts is small and the general vaporizer can be used as it is, thus reducing costs. Can be cheaper.
【図１】本発明の第１実施形態の先導空気制御装置を有
する層状掃気２サイクルエンジンの正面断面図である。FIG. 1 is a front sectional view of a stratified scavenging two-stroke engine having a leading air control device according to a first embodiment of the present invention.
【図２】本発明の第２実施形態の先導空気制御装置を有
する層状掃気２サイクルエンジンの正面断面図である。FIG. 2 is a front sectional view of a stratified scavenging two-cycle engine having a leading air control device according to a second embodiment of the present invention.
【図３】図２のＡ−Ａ断面図である。FIG. 3 is a sectional view taken along line AA of FIG. 2;
【図４】従来の先導空気制御装置を有する層状掃気２サ
イクルエンジンの正面断面図である。FIG. 4 is a front sectional view of a stratified scavenging two-cycle engine having a conventional leading air control device.
１，１ａ：先導空気制御装置、３：シリンダ、４：ピス
トン、１０：排気ポート、２０：掃気ポート、２２：吸
気ポート、２４：気化器、２５：絞り弁、２６，２６
ａ：エアクリーナ、２７：空気孔、３０，３０ａ：イン
シュレータ、３１：第２吸気通路、３２：空気通路、３
３，３３ａ：空気制御弁、３４：軸、４０，４０ａ：接
続管。1, 1a: leading air control device, 3: cylinder, 4: piston, 10: exhaust port, 20: scavenging port, 22: intake port, 24: carburetor, 25: throttle valve, 26, 26
a: air cleaner, 27: air hole, 30 and 30a: insulator, 31: second intake passage, 32: air passage, 3
3, 33a: air control valve, 34: shaft, 40, 40a: connecting pipe.
Claims (2)
間に断熱を目的としたインシュレータを挾着し、絞り弁
(25)を有する気化器と、掃気用の先導空気の量を制御す
る空気制御弁とを別々に構成した層状掃気２サイクルエ
ンジンにおいて、 前記空気制御弁(33)をインシュレータ(30)に設けたこと
を特徴とする層状掃気２サイクルエンジンの先導空気制
御装置。An insulator for heat insulation is sandwiched between an intake port (22) of the engine and a carburetor, and a throttle valve is provided.
(25) In a stratified scavenging two-cycle engine in which a carburetor having (25) and an air control valve for controlling an amount of leading air for scavenging are separately configured, the air control valve (33) is provided in an insulator (30). A leading air control device for a stratified scavenging two-stroke engine.
先導空気の量を制御する空気制御弁とを別々に構成し、
気化器の吸入空気と先導空気とを清浄にするエアクリー
ナを有する層状掃気２サイクルエンジンにおいて、 前記空気制御弁(33a) をエアクリーナ(26a) に設けたこ
とを特徴とする層状掃気２サイクルエンジンの先導空気
制御装置。2. A carburetor having a throttle valve (25) and an air control valve for controlling an amount of leading air for scavenging are separately formed,
A stratified scavenging two-cycle engine having an air cleaner for purifying intake air and leading air of a carburetor, wherein the air control valve (33a) is provided in an air cleaner (26a). Air control device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11141285A JP2000328945A (en) | 1999-05-21 | 1999-05-21 | Lead air control device for stratified scavenging two cycle engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11141285A JP2000328945A (en) | 1999-05-21 | 1999-05-21 | Lead air control device for stratified scavenging two cycle engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2000328945A true JP2000328945A (en) | 2000-11-28 |
Family
ID=15288343
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11141285A Pending JP2000328945A (en) | 1999-05-21 | 1999-05-21 | Lead air control device for stratified scavenging two cycle engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2000328945A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6668770B2 (en) | 2000-01-14 | 2003-12-30 | Aktiebolaget Electrolux | Two-stroke interal combustion engine |
| US6668771B2 (en) | 2000-01-14 | 2003-12-30 | Aktiebolaget Electrolux | Two-stroke internal combustion engine |
| US6712029B1 (en) | 1999-01-19 | 2004-03-30 | Lars Andersson | Cylinder for an internal combustion engine |
| US6718917B2 (en) | 2000-04-27 | 2004-04-13 | Aktiebolaget Electrolux | Two-stroke internal combustion engine |
| US6877723B2 (en) | 2000-01-14 | 2005-04-12 | Aktiebolaget Electrolux | Valve for control of additional air for a two-stroke engine |
| EP1674696A1 (en) | 2004-12-27 | 2006-06-28 | Komatsu Zenoah Co. | Rotary valve |
| US7082910B2 (en) | 1999-01-19 | 2006-08-01 | Aktiebolaget Electrolux | Two-stroke internal combustion engine |
| US7128031B2 (en) | 2002-12-20 | 2006-10-31 | Komatsu Zenoah Co. | Lead air control apparatus of stratified scavenging two-cycle engine |
| US7146941B2 (en) | 2004-12-22 | 2006-12-12 | Komatsu Zenoah Co. | Rotary valve |
| CN100436802C (en) * | 2003-09-02 | 2008-11-26 | 安德烈亚斯.斯蒂尔两合公司 | Elastic connecting pipe |
| DE10222346B4 (en) * | 2002-05-21 | 2013-10-17 | Andreas Stihl Ag & Co. | Hard connection channel |
-
1999
- 1999-05-21 JP JP11141285A patent/JP2000328945A/en active Pending
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6712029B1 (en) | 1999-01-19 | 2004-03-30 | Lars Andersson | Cylinder for an internal combustion engine |
| US7025021B1 (en) | 1999-01-19 | 2006-04-11 | Aktiebolaget Electrolux | Two-stroke internal combustion engine |
| US7082910B2 (en) | 1999-01-19 | 2006-08-01 | Aktiebolaget Electrolux | Two-stroke internal combustion engine |
| US6668771B2 (en) | 2000-01-14 | 2003-12-30 | Aktiebolaget Electrolux | Two-stroke internal combustion engine |
| US6877723B2 (en) | 2000-01-14 | 2005-04-12 | Aktiebolaget Electrolux | Valve for control of additional air for a two-stroke engine |
| US6668770B2 (en) | 2000-01-14 | 2003-12-30 | Aktiebolaget Electrolux | Two-stroke interal combustion engine |
| US6718917B2 (en) | 2000-04-27 | 2004-04-13 | Aktiebolaget Electrolux | Two-stroke internal combustion engine |
| DE10222346B4 (en) * | 2002-05-21 | 2013-10-17 | Andreas Stihl Ag & Co. | Hard connection channel |
| EP1574683A4 (en) * | 2002-12-20 | 2010-06-30 | Husqvarna Zenoah Co Ltd | Lead air control device of stratified scavenging two-cycle engine |
| US7128031B2 (en) | 2002-12-20 | 2006-10-31 | Komatsu Zenoah Co. | Lead air control apparatus of stratified scavenging two-cycle engine |
| CN100436802C (en) * | 2003-09-02 | 2008-11-26 | 安德烈亚斯.斯蒂尔两合公司 | Elastic connecting pipe |
| US7146941B2 (en) | 2004-12-22 | 2006-12-12 | Komatsu Zenoah Co. | Rotary valve |
| EP1674696A1 (en) | 2004-12-27 | 2006-06-28 | Komatsu Zenoah Co. | Rotary valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP3024072B2 (en) | Stratified scavenging two-cycle engine | |
| JP3934198B2 (en) | Two-stroke internal combustion engine carburetor | |
| JP3616339B2 (en) | 2-cycle internal combustion engine | |
| JPS638286B2 (en) | ||
| JP3768590B2 (en) | Two-stroke internal combustion engine carburetor | |
| JP2000328945A (en) | Lead air control device for stratified scavenging two cycle engine | |
| JP2002129963A (en) | Two-stroke internal combustion engine | |
| WO2007132716A1 (en) | Laminar-scavenging two-cycle engine | |
| JPH09268917A (en) | Carburettor for 2-cycle internal combustion engine | |
| JP2000320338A (en) | Two-stroke internal combustion engine | |
| CN103069144B (en) | Air supply device for two-stroke combustion engine | |
| JPH01115795A (en) | Suction system for motorcycle | |
| JP4301631B2 (en) | Stratified scavenging two-cycle engine | |
| JP3974957B2 (en) | Two-stroke engine carburetor | |
| JPH09242546A (en) | Crankcase precompression type spark ignition type two-stroke internal combustion engine | |
| JP2001329844A (en) | 2 cycle engine | |
| JPH0721873Y2 (en) | 2-cycle engine | |
| JP2872760B2 (en) | Exhaust system for two-cycle engine | |
| JPH0721869Y2 (en) | Two-stroke engine scavenging passage variable mechanism | |
| JP3622019B2 (en) | Internal combustion engine | |
| JPH03164524A (en) | Crank chamber structure for two-cycle internal combustion engine | |
| JPH02102318A (en) | Scavenging passage of two-cycle engine | |
| JP4288032B2 (en) | 2-cycle engine | |
| JP2501553Y2 (en) | Supercharged two-cycle engine | |
| JP2001355450A (en) | Stratified scavenging two-stroke internal combustion engine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20060228 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20060307 |
|
| A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 20060704 |