JPS5990719A - Intake device for engine - Google Patents

Intake device for engine

Info

Publication number
JPS5990719A
JPS5990719A JP57201613A JP20161382A JPS5990719A JP S5990719 A JPS5990719 A JP S5990719A JP 57201613 A JP57201613 A JP 57201613A JP 20161382 A JP20161382 A JP 20161382A JP S5990719 A JPS5990719 A JP S5990719A
Authority
JP
Japan
Prior art keywords
intake
load
valve
engine
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.)
Granted
Application number
JP57201613A
Other languages
Japanese (ja)
Other versions
JPH0323727B2 (en
Inventor
Hiroyuki Oda
博之 小田
Yasuyuki Morita
泰之 森田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mazda Motor Corp
Original Assignee
Mazda Motor Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mazda Motor Corp filed Critical Mazda Motor Corp
Priority to JP57201613A priority Critical patent/JPS5990719A/en
Publication of JPS5990719A publication Critical patent/JPS5990719A/en
Publication of JPH0323727B2 publication Critical patent/JPH0323727B2/ja
Granted legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10Air intakes; Induction systems
    • F02M35/104Intake manifolds
    • F02M35/108Intake manifolds with primary and secondary intake passages
    • F02M35/1085Intake manifolds with primary and secondary intake passages the combustion chamber having multiple intake valves
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B31/00Modifying induction systems for imparting a rotation to the charge in the cylinder
    • F02B31/08Modifying induction systems for imparting a rotation to the charge in the cylinder having multiple air inlets
    • F02B31/085Modifying induction systems for imparting a rotation to the charge in the cylinder having multiple air inlets having two inlet valves
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10Air intakes; Induction systems
    • F02M35/10006Air 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
    • F02M35/10078Connections of intake systems to the engine
    • F02M35/10085Connections of intake systems to the engine having a connecting piece, e.g. a flange, between the engine and the air intake being foreseen with a throttle valve, fuel injector, mixture ducts or the like
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10Air intakes; Induction systems
    • F02M35/10209Fluid connections to the air intake system; their arrangement of pipes, valves or the like
    • F02M35/10216Fuel injectors; Fuel pipes or rails; Fuel pumps or pressure regulators
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/10Internal combustion engine [ICE] based vehicles
    • Y02T10/12Improving ICE efficiencies

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)

Abstract

PURPOSE:To prevent an intake valve from being overheated and to improve a combustion characteristic in an entire operating range, by providing an intake passage communicating to a high load intake port with a valve for injecting a fuel towards the bevel part of intake valve, and by allowing a small volume of air to flow to the intake passage during operation at a reduced load. CONSTITUTION:The titled device comprises a combustion chamber 5 having an intake port 6 for a reduced load and an intake port 7 for an increased load respectively defined therein, the intake port 6 being adapted to supply an intake air during operations at an increased and a reduced loads and the intake port 7 adapted to supply the intake air during operation at an increased load. These intake ports 6 and 7 are provided with special-purpose intake valves 8 and 9 respectively. In this case, an injection valve 25 for injecting a fuel towards the bevel part 9a of intake valve 9 is provided at an intake passage 12 communicating to the intake port 7 for the increased load. A switch valve 20 adapted to pivote around a shaft 21 is provided at the intake passage 12. While the switch valve 20 is controlled by the reciprocal movement of rod 13a of diaphragm device 23, a notch 20a is formed partially at the switch valve 20, and thereby allowing a small volume of air to flow into the intake passage 12 during operation at a reduced load.

Description

【発明の詳細な説明】 この発明は、エンジンの吸気装置に関するものである。[Detailed description of the invention] The present invention relates to an intake system for an engine.

一般にエンジンの吸気装置は燃焼室に吸入空気を供給す
るためのものであり、このエンジンの吸気装置として、
従来、特開昭54−84127号公報に示されるように
、低負荷用及び高負荷用の2つの吸気ポートを夫々燃焼
室に開設し、吸入空気量の少ないエンジンの低負荷時に
は低負荷用吸気ポートのみから吸入空気を供給して該吸
入空気の流速を速め、吸気スワールを発生させて燃焼性
を改善し、吸入空気量の多いエンジンの高負荷時には低
負荷用吸気ポートに加えて高負荷用吸気ポートからも吸
入空気を供給して吸気抵抗を低減し、充填効率を高めて
所望のエンジン出力が得られるようにしたものがある。
Generally, an engine's intake system is for supplying intake air to the combustion chamber.
Conventionally, as shown in Japanese Unexamined Patent Publication No. 54-84127, two intake ports for low load and high load were opened in the combustion chamber, respectively, and when the engine had a low intake air amount and the engine was under low load, the low load intake port was opened. By supplying intake air only from the port, the flow velocity of the intake air is increased, and an intake swirl is generated to improve combustion performance.When an engine with a large amount of intake air is under high load, it can be used in addition to the intake port for low load use. Some engines also supply intake air from the intake port to reduce intake resistance and increase charging efficiency to obtain the desired engine output.

しかしながらこのような独立した2系統の吸気ポートを
有する従来の吸気装置では、エンジンの低負荷時におい
ては、高負荷用吸気ポートに空気が流れiよいことから
、該高負荷用吸気ポートを開閉する高負荷用吸気弁が冷
却されず、高温となって耐久性が悪化するという問題が
あった。
However, in a conventional intake system having two independent systems of intake ports, when the engine load is low, air flows easily to the high-load intake port, so the high-load intake port is opened and closed. There was a problem in that the high-load intake valves were not cooled, resulting in high temperatures and poor durability.

本発明は、かかる従来の問題点に鑑みてなされたもので
、低負荷用及び高負荷用の2つの吸気ポ−トを夫々燃焼
室に開設したエンジンの吸気装置において、高負荷用吸
気ポートに連なる高負荷用吸気通路に高負荷用吸気弁の
傘部に向けて燃料を噴射するよう燃料噴射弁を設けると
ともに、低負荷時に」二記lVj負荷用吸気通路に少量
の空気を流すようにすることにより、噴射燃料によって
高負荷用吸気弁を冷却しその過熱を防止するようにした
エンジンの吸気装置を提供せんとするものである。
The present invention has been made in view of such conventional problems, and is an engine intake system in which two intake ports, one for low load and one for high load, are provided in the combustion chamber. A fuel injection valve is provided in the continuous high-load intake passage to inject fuel toward the umbrella of the high-load intake valve, and a small amount of air is allowed to flow into the load intake passage during low loads. Accordingly, it is an object of the present invention to provide an intake system for an engine in which a high-load intake valve is cooled by injected fuel to prevent the intake valve from overheating.

以下本発明の一実施例を図について詳細に説明する。An embodiment of the present invention will be described in detail below with reference to the drawings.

第1図及び第2図は本発明の一実施例によるエンジンの
吸気装置を示す。図において、1はエンジンであり、該
エンジン1内には燃焼室5が形成され、該エンジン1の
シリンダヘッド2には低負荷用及び高負荷用の吸気ポー
)6.7が夫々燃焼人空気を吸入させるような形状に形
成されている。
1 and 2 show an engine intake system according to an embodiment of the present invention. In the figure, 1 is an engine, a combustion chamber 5 is formed in the engine 1, and the cylinder head 2 of the engine 1 has intake ports 6 and 7 for low load and high load, respectively. It is shaped in such a way that it allows you to inhale it.

また上記両吸気ボート6.7の開口5a、7aにはそれ
を開閉する低負荷用及び高負荷用の吸気弁8.9が各々
配設されている。またシリンダヘッド2の外壁には吸気
通路lOが取付けられ、該吸気通路10の下流には上記
低負荷用及び副負荷用の吸気ポート6.7に連通して低
負荷用吸気通路11及び高負荷用吸気通路12が分岐形
成されている。また吸気通路10の上流側にはスロット
ル弁13及びエアフローメータ14が設けられている。
In addition, low-load and high-load intake valves 8.9 for opening and closing the openings 5a and 7a of both intake boats 6.7 are respectively provided. Further, an intake passage 10 is attached to the outer wall of the cylinder head 2, and downstream of the intake passage 10, it communicates with the above-mentioned low-load and sub-load intake ports 6.7, and connects the low-load intake passage 11 and the high-load intake port 6. The air intake passage 12 is formed into branches. Further, a throttle valve 13 and an air flow meter 14 are provided on the upstream side of the intake passage 10.

また上記シリンダヘッド2には2つの排気ポート15.
16が燃焼室5に開口して設けられ、該両排気ポート1
5.16の開口15a 、 16aにはそれを開閉する
排気弁17.18がそれぞれ配設され、又シリンダヘッ
ド2の外壁には上記両排気ポート15.16と連通して
排気通路19が取付けられている。
The cylinder head 2 also has two exhaust ports 15.
16 is provided to open into the combustion chamber 5, and both exhaust ports 1
Exhaust valves 17.18 for opening and closing the openings 15a and 16a of the cylinder head 2 are respectively provided in the openings 15a and 16a, and an exhaust passage 19 is installed on the outer wall of the cylinder head 2 in communication with both the exhaust ports 15.16. ing.

また上記高負荷用吸気通路12には軸21の回りに回動
する開閉弁20が配設され、該開閉弁20はダイヤフラ
ム装置23のロッド23aの往復動によって開閉される
ようになっている。このダイヤフラム装置23の圧力室
としての第1室23Cには排圧導入通路24を介して排
気通路19の排気ガスの圧力が導入されるようになって
おり、又その大気室としての第2室23dにはばね部材
23eが配設されている。
Further, an on-off valve 20 that rotates around a shaft 21 is provided in the high-load intake passage 12, and the on-off valve 20 is opened and closed by the reciprocating movement of a rod 23a of a diaphragm device 23. The pressure of the exhaust gas in the exhaust passage 19 is introduced into the first chamber 23C as a pressure chamber of this diaphragm device 23 through the exhaust pressure introduction passage 24, and the second chamber as an atmospheric chamber is introduced into the first chamber 23C as a pressure chamber. A spring member 23e is disposed at 23d.

そして上記高負荷用吸気通路12には燃料噴射弁25が
上記高負荷用吸気弁9の傘部9aに向けて燃料を噴射す
るよう配設され、又上記開閉弁20には切り欠き20a
が形成されており、該開閉弁20は低負荷時に上記1鋳
負荷用吸気通路12に少量の空気を流す制御装置1代と
して機能する。また図中、26はエアフローメータ14
の出力を受け、吸入空気量に応じた燃料噴射パルスを作
成してそれを燃料噴射弁25に加える噴射情制御回路で
ある。
A fuel injection valve 25 is disposed in the high-load intake passage 12 so as to inject fuel toward the umbrella portion 9a of the high-load intake valve 9, and a notch 20a is provided in the on-off valve 20.
is formed, and the on-off valve 20 functions as a control device 1 that allows a small amount of air to flow into the intake passage 12 for the 1-casting load at low loads. Also, in the figure, 26 is the air flow meter 14.
This is an injection information control circuit that receives the output from the fuel injection valve 25, creates a fuel injection pulse according to the amount of intake air, and applies it to the fuel injection valve 25.

次に動作について説明する。Next, the operation will be explained.

エンジン1が作動すると、吸気通路10にはエンジン1
の負圧によってスロットル弁13のifに応じた量の空
気が吸入される。その際エアフローメータ14は吸入さ
れた空気の量を検出しており、噴射脅制御回路26はエ
アフローメータ14の出力を受けて吸入空気量に応じた
燃料噴射パルスを作成し、それを所定のタイミングで燃
料噴射弁25に加える。そしてエンジン1の低負荷時に
は、吸入空気量は少なく、排気通路19の排気ガス量も
少ないことから、ダイヤフラム装置23の第1室23C
に導入される排気ガスの圧力は小さく、ダイヤフラム2
3bはばね部4JU’ 23 eのばね力によって第1
図上方に押し上げられており、開閉弁20は高負荷用吸
気通路12を閉じている。
When the engine 1 operates, the engine 1
An amount of air corresponding to if of the throttle valve 13 is sucked in by the negative pressure. At this time, the air flow meter 14 detects the amount of intake air, and the injection threat control circuit 26 receives the output of the air flow meter 14, creates a fuel injection pulse according to the amount of intake air, and sends it at a predetermined timing. is added to the fuel injection valve 25. When the engine 1 is under low load, the amount of intake air is small and the amount of exhaust gas in the exhaust passage 19 is also small, so the first chamber 23C of the diaphragm device 23
The pressure of the exhaust gas introduced into the diaphragm 2 is small.
3b is the first one by the spring force of the spring part 4JU' 23e.
The on-off valve 20 closes the high-load intake passage 12 as it is pushed upward in the figure.

このような状態において上記吸気通路10に吸入された
空気はその大部分が低負荷用吸気通路11を流れ、速い
流速でもって燃焼室5内に吸入され、該燃焼室5内には
吸気スワール(第2図の矢印A参照)が発生する。一方
、高負荷用吸気通路12には第1図に矢印Bで示すよう
に開閉弁20の切り欠き20aを介して少量の空気が流
れており、上記燃料噴射弁25が燃料を噴射すると、該
噴射燃料は上記少、量の空気とともに燃焼室5に吸入さ
れ、上記吸気スワールの作用によって燃焼室5内の空気
と良く混合され、こうした状態で点火燃焼が行なわれる
In such a state, most of the air taken into the intake passage 10 flows through the low-load intake passage 11 and is taken into the combustion chamber 5 at a high flow velocity, and an intake swirl ( (see arrow A in FIG. 2) occurs. On the other hand, a small amount of air flows into the high-load intake passage 12 through the notch 20a of the on-off valve 20, as shown by arrow B in FIG. The injected fuel is drawn into the combustion chamber 5 together with the small amount of air, and mixed well with the air in the combustion chamber 5 by the action of the intake air swirl, and ignition combustion is performed in this state.

このようにエンジン1の低負荷時には一1燃料を高負荷
用吸気弁9の傘部9aに向けて噴射させているので、該
吸気弁9は燃料がこれに当って蒸発する際に冷却され、
従って従来装置のように高負荷用吸気弁が過熱すること
はない。また低負荷用吸気通路11のみから吸入空気を
速い流速でもって供給しているので、燃料は良好に霧化
・混合され、しかも燃料が吸気弁9に当って蒸発するた
め、燃料の気化・霧化はより一層促進され、燃焼性は大
きく向上するものである。
In this way, when the load of the engine 1 is low, the fuel is injected toward the umbrella part 9a of the high-load intake valve 9, so that the intake valve 9 is cooled when the fuel hits it and evaporates.
Therefore, unlike the conventional device, the high-load intake valve does not overheat. In addition, since the intake air is supplied at a high flow rate only from the low-load intake passage 11, the fuel is well atomized and mixed.Furthermore, since the fuel hits the intake valve 9 and evaporates, the fuel is vaporized and misted. oxidation is further promoted, and flammability is greatly improved.

次にエンジン1が高負荷運転状態になると、吸入空気遺
は増大し、排気ガス量も増大することから、ダイヤフラ
ム装+w 23の第1室23Cに導入される排気ガスの
圧力は大きくなり、ダイヤフラム23bは第1図下方に
移動変形して開閉弁20を開く。すると吸気通路10内
に吸入された空気は低負荷用及び高負荷用の両吸気通路
11.12を流れ、低負荷用吸気通路11内に吸入され
た空気はそのまま燃焼室5内に吸入され、一方高負荷用
吸気通路12内に吸入された空気は燃料噴射弁25から
の燃料とともに燃焼室5内に吸入される。
Next, when the engine 1 enters a high-load operating state, the amount of intake air increases and the amount of exhaust gas also increases, so the pressure of the exhaust gas introduced into the first chamber 23C of the diaphragm +w 23 increases, 23b is moved and deformed downward in FIG. 1 to open the on-off valve 20. Then, the air sucked into the intake passage 10 flows through both the low-load and high-load intake passages 11.12, and the air sucked into the low-load intake passage 11 is sucked into the combustion chamber 5 as it is. On the other hand, the air taken into the high-load intake passage 12 is taken into the combustion chamber 5 together with the fuel from the fuel injection valve 25.

そしてこの燃焼室5日では上記両吸気通路11゜12か
ら吸入された空気と高負荷用吸気通路12から吸入され
た燃料とが混合され、点火燃焼が行なわれる。
In the combustion chamber 5, the air taken in from both intake passages 11 and 12 and the fuel taken in from the high-load intake passage 12 are mixed, and ignition combustion takes place.

このようにエンジン1の高負荷時には、低負荷用及び高
負荷用の両吸気通路11.12から吸入空気を供給して
いるので、吸気抵抗は小さく、充填効率は増大して所望
のエンジン出力が得られるものである。またこの高負荷
時においても燃料は高負荷用吸気弁9の熱によってその
気化・チ化が促進されるものである。
In this way, when the engine 1 is under high load, intake air is supplied from both the low-load and high-load intake passages 11.12, so the intake resistance is small, the charging efficiency is increased, and the desired engine output is achieved. That's what you get. Further, even during this high load state, the vaporization and oxidation of the fuel is promoted by the heat of the high load intake valve 9.

なお上記実施例では開閉弁に切り火きを設けて低負荷時
に高負荷用吸気通路に少量:の空気を流すようにしたが
、これは低負荷時に開閉弁を少し開くようにしてもよい
。またエンジン負荷に応じた高負荷用吸気通路の開閉制
御は開閉弁ではなく、高負荷用吸気弁によって行なうよ
うにしてもよく、この場合は低負荷時に高負荷用吸気弁
のリフ)fflを小さくするか、あるいはその開弁時間
を短くすればよい。
In the above embodiment, a spark is provided in the on-off valve to allow a small amount of air to flow into the high-load intake passage when the load is low, but the on-off valve may be opened slightly when the load is low. Furthermore, the opening/closing control of the high-load intake passage according to the engine load may be performed by a high-load intake valve instead of an on-off valve. Alternatively, the valve opening time may be shortened.

また上記実施例では吸気通路の下流を低負荷用及び高負
荷用の吸気通路に分岐したエンジンの吸気装置について
説明したが、本発明は低負荷用及び高負荷用の2つの吸
気通路を別個に形成したエンジンの吸気装置についても
同様に適用できる。
Furthermore, in the above embodiment, an engine intake system was described in which the downstream side of the intake passage was branched into intake passages for low load and high load, but the present invention separates the two intake passages for low load and high load. The same can be applied to the intake device of the formed engine.

以上のように本発明によれば、低負荷用及び高負荷用の
2つの吸気ボートを夫々燃焼室に開設したエンジンの吸
気装置において、高負荷用吸気ボート匿連なる高負荷用
吸気通路に高負荷用吸気弁の傘部に向けて燃料を噴射す
るよう燃料噴射弁を設けるとともに、低負荷時に上記高
負荷用吸気通路に少量の空気を流すようにしたので、エ
ンジンの低負荷時における高負荷用吸気弁の過熱を防止
して該吸気弁の耐久性を向上でき、しかも全運転領域に
わたって燃料の気化・霧化を促進でき、燃焼性を改善で
きる効果がある。
As described above, according to the present invention, in an engine intake system in which two intake boats, one for low load and one for high load, are provided in the combustion chamber, the intake boat for high load is connected to the intake passage for high load. A fuel injection valve is provided to inject fuel toward the umbrella of the engine intake valve, and a small amount of air is allowed to flow into the high-load intake passage during low engine loads. This has the effect of preventing overheating of the intake valve, improving the durability of the intake valve, promoting vaporization and atomization of fuel over the entire operating range, and improving combustibility.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本発明の一実施例による吸気装置を備えたエン
ジンの概略構成図、f42図は上記装置を備えたエンジ
ンの底面図である。 1・・・エンジン、5・・・燃焼室、6・・・低負荷用
吸気ポート、7・・・面負荷用吸気ポート、8・・・低
負荷用吸気弁、9・・・高負荷用吸気弁、9a・・・傘
部、12・・・高負荷用吸気通路、13・・・開閉弁(
制御装置)、25・・・燃料噴射弁。 特許出願人  東洋工業株式会社 代理人 弁理士    早   願   W  −第1
図 第2図 1ら     ’16
FIG. 1 is a schematic configuration diagram of an engine equipped with an intake device according to an embodiment of the present invention, and FIG. f42 is a bottom view of the engine equipped with the above device. 1... Engine, 5... Combustion chamber, 6... Intake port for low load, 7... Intake port for surface load, 8... Intake valve for low load, 9... For high load Intake valve, 9a... Umbrella part, 12... Intake passage for high load, 13... Opening/closing valve (
control device), 25... fuel injection valve. Patent Applicant Toyo Kogyo Co., Ltd. Agent Patent Attorney Early Application W - 1st
Figure 2 Figure 1 et al '16

Claims (1)

【特許請求の範囲】[Claims] (1)  エンジンの低負荷時及び高負荷時にわたって
吸入空気を供給する低負荷用吸気ポートとエンジンの高
負荷時に吸入空気を供給する高負荷用吸気ポートとを燃
すε室に夫々開設し、該両吸気ポートに低負荷用吸気弁
及び高負荷用吸気弁を各々配設してなるエンジンの吸気
装置において、上記高負荷用吸気ポートに連なる高負荷
用吸気通路に上記高負荷用吸気弁の傘部に向けて燃料を
噴射するよう燃料噴射弁を配設するとともに、低負荷時
に上記高負荷用吸気通路に少量の吸入空気を流す制御装
置を設けたことを特徴とするエンジンの吸気装置。
(1) A low-load intake port that supplies intake air during low engine load and high engine load, and a high-load intake port that supplies intake air during high engine load are established in the combustion ε chamber, respectively. In an engine intake system in which both intake ports are provided with a low-load intake valve and a high-load intake valve, the high-load intake passage connected to the high-load intake port is provided with an umbrella for the high-load intake valve. 1. An intake system for an engine, comprising: a fuel injection valve disposed to inject fuel toward the engine; and a control device configured to flow a small amount of intake air into the high-load intake passage during low-load conditions.
JP57201613A 1982-11-16 1982-11-16 Intake device for engine Granted JPS5990719A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57201613A JPS5990719A (en) 1982-11-16 1982-11-16 Intake device for engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57201613A JPS5990719A (en) 1982-11-16 1982-11-16 Intake device for engine

Publications (2)

Publication Number Publication Date
JPS5990719A true JPS5990719A (en) 1984-05-25
JPH0323727B2 JPH0323727B2 (en) 1991-03-29

Family

ID=16443958

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57201613A Granted JPS5990719A (en) 1982-11-16 1982-11-16 Intake device for engine

Country Status (1)

Country Link
JP (1) JPS5990719A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60122250A (en) * 1983-12-05 1985-06-29 Toyota Motor Corp Double suction valve engine
JPS61122362U (en) * 1985-01-18 1986-08-01
JPS62110535U (en) * 1985-12-27 1987-07-14
JPS62173523U (en) * 1986-04-18 1987-11-04

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02148197A (en) * 1988-11-29 1990-06-07 Nippon Telegr & Teleph Corp <Ntt> Device for testing lighting of escape guiding lamp
JPH0427374A (en) * 1990-05-23 1992-01-30 T Hasegawa Co Ltd Prevention of deterioration of flavor of food and drink
JPH0638723A (en) * 1992-07-21 1994-02-15 T Hasegawa Co Ltd Preventing agent for deterioration of flavor of food and drink and its utilization
JPH07135938A (en) * 1993-11-19 1995-05-30 Sanei Gen F F I Inc Preventing agent for deterioration in flavor for beverage
JPH0823939A (en) * 1994-07-14 1996-01-30 Sanei Gen F F I Inc Preventing agent for flavor of beverage from deteriorating and prevention of flavor of beverage from deteriorating
JPH09221667A (en) * 1996-02-14 1997-08-26 T Hasegawa Co Ltd Antioxidant composition
JPH10248501A (en) * 1997-03-17 1998-09-22 Sanei Gen F F I Inc Method for masking astringency
WO2001006866A1 (en) * 1999-07-23 2001-02-01 University Of Kentucky Research Foundation Soy products having improved odor and flavor and methods related thereto
JP2004111347A (en) * 2002-07-25 2004-04-08 Matsushita Electric Works Ltd Apparatus and system for automatically inspecting guiding light
JP2015164422A (en) * 2001-06-13 2015-09-17 ジボダン エス エー Taste modifiers comprising chlorogenic acid

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02148197A (en) * 1988-11-29 1990-06-07 Nippon Telegr & Teleph Corp <Ntt> Device for testing lighting of escape guiding lamp
JPH0427374A (en) * 1990-05-23 1992-01-30 T Hasegawa Co Ltd Prevention of deterioration of flavor of food and drink
JPH0638723A (en) * 1992-07-21 1994-02-15 T Hasegawa Co Ltd Preventing agent for deterioration of flavor of food and drink and its utilization
JPH07135938A (en) * 1993-11-19 1995-05-30 Sanei Gen F F I Inc Preventing agent for deterioration in flavor for beverage
JPH0823939A (en) * 1994-07-14 1996-01-30 Sanei Gen F F I Inc Preventing agent for flavor of beverage from deteriorating and prevention of flavor of beverage from deteriorating
JPH09221667A (en) * 1996-02-14 1997-08-26 T Hasegawa Co Ltd Antioxidant composition
JPH10248501A (en) * 1997-03-17 1998-09-22 Sanei Gen F F I Inc Method for masking astringency
WO2001006866A1 (en) * 1999-07-23 2001-02-01 University Of Kentucky Research Foundation Soy products having improved odor and flavor and methods related thereto
JP2015164422A (en) * 2001-06-13 2015-09-17 ジボダン エス エー Taste modifiers comprising chlorogenic acid
JP2004111347A (en) * 2002-07-25 2004-04-08 Matsushita Electric Works Ltd Apparatus and system for automatically inspecting guiding light

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60122250A (en) * 1983-12-05 1985-06-29 Toyota Motor Corp Double suction valve engine
JPH0647955B2 (en) * 1983-12-05 1994-06-22 トヨタ自動車株式会社 Double intake valve engine
JPS61122362U (en) * 1985-01-18 1986-08-01
JPS62110535U (en) * 1985-12-27 1987-07-14
JPH0433383Y2 (en) * 1985-12-27 1992-08-11
JPS62173523U (en) * 1986-04-18 1987-11-04

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