JPS58206866A - Suction pipe for engine - Google Patents
Suction pipe for engineInfo
- Publication number
- JPS58206866A JPS58206866A JP57090915A JP9091582A JPS58206866A JP S58206866 A JPS58206866 A JP S58206866A JP 57090915 A JP57090915 A JP 57090915A JP 9091582 A JP9091582 A JP 9091582A JP S58206866 A JPS58206866 A JP S58206866A
- Authority
- JP
- Japan
- Prior art keywords
- engine
- pipe
- suction
- air
- fuel mixture
- 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
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
- F02M35/104—Intake manifolds
- F02M35/112—Intake manifolds for engines with cylinders all in one line
-
- 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
- F02M35/10072—Intake runners
-
- 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
- F02M35/10091—Air intakes; Induction systems characterised by details of intake ducts: shapes; connections; arrangements
- F02M35/10118—Air intakes; Induction systems characterised by details of intake ducts: shapes; connections; arrangements with variable cross-sections of intake ducts along their length; Venturis; Diffusers
-
- 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
- F02M35/10091—Air intakes; Induction systems characterised by details of intake ducts: shapes; connections; arrangements
- F02M35/10137—Flexible ducts, e.g. bellows or hoses
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust Silencers (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Abstract
Description
【発明の詳細な説明】 管に関するものである。[Detailed description of the invention] It is related to pipes.
エンジンの無負竹筒たは低負荷運転時には吸気路の絞り
弁開度が小さく混合気の流量が少ないので,その下流の
吸気管内を流れる混合気は低速度である。従って,混合
気が絞り斧を通過してエンジンのシリンダ入口に達する
までにかなりの時間を委し,エンジンが高速運転されて
いるとき(比べて混合気供給の応答性が劣るので,フィ
ードバック制御方式で混合気を制御してもエンジン運転
状態に即応して適切な混合気を鋭敏に供給することがで
きない。When the engine is running with no load or under low load, the opening of the throttle valve in the intake passage is small and the flow rate of the air-fuel mixture is low, so the air-fuel mixture flowing downstream in the intake pipe has a low velocity. Therefore, it takes a considerable amount of time for the mixture to pass through the throttle ax and reach the engine cylinder inlet, and when the engine is running at high speed (compared to Even if the air-fuel mixture is controlled by the engine, it is not possible to promptly supply an appropriate air-fuel mixture in response to engine operating conditions.
本発明は無負荷または低負荷運転時V(も混合気を鋭敏
に供給できる吸気管な提供−[ることを目的として発明
されたもので,吸気管の少なくとも一部を弾性体で作り
,内外の圧力差により有効断面積が変化するようにした
ことを特徴とするものである。The present invention was invented for the purpose of providing an intake pipe that can supply air-fuel mixture sharply even during no-load or low-load operation. It is characterized in that the effective cross-sectional area changes depending on the pressure difference.
以下本発明の実施例を図面に就いて読切する。Embodiments of the present invention will be explained below with reference to the drawings.
第1図において,lは絞り升2を有する吸気路.3は本
発明に係る吸気管.4はエンジン.5は排気管を示し.
吸気路1とエンジン4の各シリンダの入口との間に設け
られた吸気管3は少なくとも一部が合成ゴムのような弾
性材料′ζ脳形成されて居り、^い吸入管負圧が発生し
内外の圧力差が大きくなったとき圧動されて同図二点鎖
線3Aで示したように有効断面積を縮小fシ)ようt、
F fcつている。In FIG. 1, l is an intake passage having a throttle square 2. 3 is an intake pipe according to the present invention. 4 is the engine. 5 indicates the exhaust pipe.
The intake pipe 3 provided between the intake passage 1 and the inlet of each cylinder of the engine 4 is at least partially made of an elastic material such as synthetic rubber, and a large negative pressure is generated in the intake pipe. When the pressure difference between the inside and outside becomes large, it is compressed and the effective cross-sectional area is reduced as shown by the two-dot chain line 3A in the figure.
F fc is on.
第2mは@気路1 &C接続するフランジ5とシリンダ
の入口vc接続するフランジ6とを金員で作り、入口部
7からシリンダ数に応じた技部8に至る全部を弾性体で
形成すると共に曲がり部および分岐部に圧dR防止用の
金属製の県9,10を内PJt設置し、更に内部の適所
にもCi2 VA Nの円弧杉の圧aμ)j 11:、
材11を内蔵固定したものである。The 2nd m is @ air passage 1 The flange 5 that connects &C and the flange 6 that connects the cylinder inlet vc are made of metal, and everything from the inlet part 7 to the part 8 corresponding to the number of cylinders is made of an elastic material. Metal prefectures 9 and 10 for preventing pressure dR are installed at bends and branching parts, and furthermore, pressure of circular cedar of Ci2 VA N is installed at appropriate places inside.
The material 11 is fixed inside.
弾性体で形成されている部分はエンジンの1山常運転時
における吸入管負圧では殆んど圧縮されないが、無負荷
または低負荷運転時の高い吸入管負圧で圧縮されるよう
に材質、肉厚更に形状を選定するもので、圧潰防止材1
1を有するときは第3図工点鎖@3Bで示すようにその
直径と等しい径まで圧縮される。The part made of elastic material is hardly compressed by the suction pipe negative pressure during normal engine operation, but the material is made so that it can be compressed by the high suction pipe negative pressure during no-load or low-load operation. The thickness and shape are selected, and crush prevention material 1
1, it is compressed to a diameter equal to that diameter, as shown by the work point chain @3B in Figure 3.
$4同は人口部およびこれに近い枝部の吸入管部分3a
を金属で作り、入口部から遠い技部3bを弾性体で作っ
たもので、枝部3bが圧縮されることによって混合気は
近くのシリンダと同程度の時間で遠くのシリンダへ供給
される。$4 The same is the intake pipe part 3a of the artificial part and the branch part close to this.
is made of metal, and the branch part 3b far from the inlet part is made of an elastic material. By compressing the branch part 3b, the air-fuel mixture is supplied to the distant cylinder in about the same time as to the nearby cylinder.
艷に9図示説明しないが曲がり部1分岐部およびフラン
ジのみを金属で作り他の部分な弾性体で作ることもある
。また、薄肉の沌礪を波形に成形して弾性を与えたもの
で弾性体を構成することもある。Although not shown in the drawings, only the bending part, the branching part, and the flange may be made of metal, and the other parts may be made of elastic material. In addition, an elastic body may be formed by forming a thin wall into a corrugated shape to give it elasticity.
以−Eのように2本発明は吸気管の少なくとも一部をI
s性体で作ったので、高い吸入管負圧が発生したとき圧
縮されて有効断面積が減少し、しかも負圧が高いほど大
きく圧縮されるのでイ°の中を流れる混合気の流速が増
し。As shown in E-E, the present invention provides at least a portion of the intake pipe with I.
Since it is made of S-type material, when high suction pipe negative pressure is generated, it will be compressed and the effective cross-sectional area will decrease.Moreover, the higher the negative pressure, the more it will be compressed, so the flow speed of the air-fuel mixture flowing through the pipe will increase. .
混合気は短時間でエンジンに供給されるのである。従つ
゛(、エンジンの負荷条件にらじて吸気管の有効Kv面
槓が天化し、無負荷またはIlk負荷負荷1峙転も混合
気をエンジン運転状態IcρLl応し′C或敏に供給で
とるものである。The mixture is supplied to the engine in a short time. Therefore, the effective Kv surface of the intake pipe changes depending on the engine load condition, and even when there is no load or Ilk load, the air-fuel mixture is quickly supplied depending on the engine operating condition IcρLl. It is something.
第1図は本発明の吸気管を員えたエンジン系りM前面略
図、第2図は本5巻明の実施列を示゛4−一部切截した
半面図、第3因は拡大離断面図、第4図は本竜明の鴨な
る実施例の平面区である。
3・・・・・・吸入管、4・・・・・・1ンジン、3b
・・・・・・枝部、7・・・・・・入口部、8・・・・
・・枝部。
代理人 野 沢 睦 秋Fig. 1 is a schematic front view of the engine system M including the intake pipe of the present invention, Fig. 2 shows the implementation row of the fifth volume of this book. Figures 4 and 4 are plan views of this embodiment of Ryumei's duck. 3...Suction pipe, 4...1 engine, 3b
... Branch, 7 ... Entrance, 8 ...
・Branch. Agent Mutsumi Nozawa Aki
Claims (1)
り有効断面積が変化するように構成されているエンジン
の吸気管。An engine intake pipe, at least a part of which is made of an elastic material, and is configured so that its effective cross-sectional area changes due to the difference in internal and external IE forces.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP57090915A JPS58206866A (en) | 1982-05-28 | 1982-05-28 | Suction pipe for engine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP57090915A JPS58206866A (en) | 1982-05-28 | 1982-05-28 | Suction pipe for engine |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS58206866A true JPS58206866A (en) | 1983-12-02 |
Family
ID=14011710
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP57090915A Pending JPS58206866A (en) | 1982-05-28 | 1982-05-28 | Suction pipe for engine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS58206866A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59103953A (en) * | 1982-12-03 | 1984-06-15 | Honda Motor Co Ltd | Air cleaner device |
-
1982
- 1982-05-28 JP JP57090915A patent/JPS58206866A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59103953A (en) * | 1982-12-03 | 1984-06-15 | Honda Motor Co Ltd | Air cleaner device |
JPH0239628B2 (en) * | 1982-12-03 | 1990-09-06 | Honda Motor Co Ltd |
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