JPS5820924A - Intake device for engine with supercharger - Google Patents
Intake device for engine with superchargerInfo
- Publication number
- JPS5820924A JPS5820924A JP56117972A JP11797281A JPS5820924A JP S5820924 A JPS5820924 A JP S5820924A JP 56117972 A JP56117972 A JP 56117972A JP 11797281 A JP11797281 A JP 11797281A JP S5820924 A JPS5820924 A JP S5820924A
- Authority
- JP
- Japan
- Prior art keywords
- intake passage
- air
- supercharger
- engine
- heat exchanger
- 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
- F02B29/00—Engines characterised by provision for charging or scavenging not provided for in groups F02B25/00, F02B27/00 or F02B33/00 - F02B39/00; Details thereof
-
- 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
Abstract
Description
【発明の詳細な説明】
本発明は過給機付二／ジｙの改良に関する。従来よシ、
主吸気通路に加えて補助吸気通路を設け、主吸気通路か
らの自然吸気に加えて、エンシンの出力軸あるいは排気
がヌによｐ駆動される過給機によって加圧した空気若し
くは混合気を過給気として補助的に補助吸気通路から燃
焼室内に供給すること罠よシ、ヱンジｙに対する充填効
率を向上させ、エンシンの出力性能の向上を図るように
したエンシンの過給装置は公知である。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a supercharged twin/engine y. Traditionally,
In addition to the main intake passage, an auxiliary intake passage is provided, and in addition to the natural intake from the main intake passage, the engine's output shaft or exhaust gas is supplied with air or mixture pressurized by a turbocharger driven by the engine. Engine supercharging devices are known that are designed to improve the engine output performance by supplying supplementary air as supply air into the combustion chamber from the auxiliary intake passage, thereby improving the charging efficiency of the engine.
しかし、過給機は外部空気を断熱圧縮して過給気として
吐出するので過給気のＩＬ変は高温となり主吸気通路か
らの混合気と二ｙジνの作動室（燃焼室）内において混
合されるときに局部的に高温領域が発生し、ノツ中ｙダ
會起ζじやすい状態罠なっていた。ま友高源になれば気
体の体積は膨張するので充填効率にも限界があった。However, since the turbocharger adiabatically compresses external air and discharges it as supercharged air, the IL change of the supercharged air becomes high temperature, and the mixture from the main intake passage and the working chamber (combustion chamber) of During mixing, a high temperature region was generated locally, creating a situation where it was easy to cause an outbreak. Since the volume of the gas expands when it comes to Mayu Takagen, there is a limit to the filling efficiency.
従来、過給気を冷却するものとしては過給気通路にクー
ラーを装着したものが知られている（たとえば特開＠Ｓ
／−７−１ｏｆ ）が、この種のものは冷却―置が大型
であるととも忙高価である欠点があった。Conventionally, as a device for cooling supercharging air, it is known that a cooler is installed in the supercharging air passage (for example, JP-A-S
However, this type of cooling system had the disadvantage that the cooling equipment was large and expensive.
従って、本発明は、小型で安価な熱交換器により過給気
を冷却してノッキングを防止するとともに、より充填効
率の高い出力性能の向上し九過給機付の工／ジン吸気装
置を提供することを目的とする。Therefore, the present invention provides an engine/engine air intake system with a supercharger that uses a small and inexpensive heat exchanger to cool the supercharged air to prevent knocking, and has improved output performance with higher charging efficiency. The purpose is to
その構成は、主吸気通路と過給機を介設した補助吸気通
路とを有する過給機付エンジンにおいて、主吸気通路を
流通する吸気と、過給機下流の補助吸気通路内ｔ＃１通
する過給気を熱交換させる熱交換器を過給機下流におい
て、前記両吸気通路内に形成し光ことを轡黴とする。The configuration is that in a supercharged engine that has a main intake passage and an auxiliary intake passage with a supercharger interposed therein, intake air flowing through the main intake passage and t#1 flowing in the auxiliary intake passage downstream of the supercharger are A heat exchanger for exchanging heat with the supercharged air is formed in both intake passages downstream of the supercharger to convert light into mold.
本発明の上記構成によれば、過給気は主吸気通路を流通
する吸気との熱交換によ〕温度が低下し、そのＩＩ＆が
大きくなるため、過給効果を高めることができる。さら
に、主吸気通路を通る吸気と過給気との間の温度差が少
くなるため、工ンゾ／の燃焼室に吸入される吸気温度が
均一化され、局部的な高温域がなくな）、ノッキングが
防止される。According to the above configuration of the present invention, the temperature of the supercharging air is lowered by heat exchange with the intake air flowing through the main intake passage, and its II& becomes larger, so that the supercharging effect can be enhanced. Furthermore, since the temperature difference between the intake air passing through the main intake passage and the supercharging air is reduced, the temperature of the intake air sucked into the combustion chamber of the engine is equalized, eliminating localized high temperature areas. , knocking is prevented.
本発明においては、主吸気通路を通る吸気轄、空気と燃
料との混合気とすることが好ましく、その場合忙は、混
合気中の燃料の一部は、過給気から熱を奪って気化する
ため、工ンゾｙの燃焼状態は大巾に改養され、燃費を向
上させることができる。In the present invention, it is preferable that a mixture of air and fuel be formed through the intake passage through the main intake passage. Therefore, the combustion state of ginzo y is greatly improved, and fuel efficiency can be improved.
さらに本発明の他の態様においては、補助吸気通路の一
部を主吸気通路に通して、該補助吸気通路に放熱フィン
を形成し、この放熱フィンｋｆａ科を吹きつけるように
燃料噴射弁を設けてもよい。Furthermore, in another aspect of the present invention, a part of the auxiliary intake passage is passed through the main intake passage, a heat radiating fin is formed in the auxiliary intake passage, and a fuel injection valve is provided so as to spray the heat radiating fin. It's okay.
以下、実施例に従い本発明を異体的に説明する。Hereinafter, the present invention will be explained in a different manner according to Examples.
第１図を参照すれば、エンジンＥは、シ９ｙ〆ｌとシリ
ンダ１内を往復動するビスＭ／２を有し ゛ている
。シリンダｌの上部には燃焼室３が形成され、を九シリ
ンダＩＫは皺燃焼１１に開口する吸気４−ト４、補助吸
気−一部５、排気−一部６が形成されてｂる。吸気−−
）４には吸気弁７、補助吸気ポート５罠は補助弁８、排
気−−）６には排気弁、がそれぞれ−ヶ会すされる。吸
気ｌ−８゛は主吸気通路１０に＠続され、補助吸気／−
）５は補＠吸気通路１１Ｋｇ続されている。これら主吸
気通路ｌＯ及び補助吸気通路１１は、共にエアクリーナ
１２を有する吸気路１３に接続される。Referring to FIG. 1, the engine E has a cylinder 9y and a screw M/2 that reciprocates within the cylinder 1. A combustion chamber 3 is formed in the upper part of the cylinder I, and the nine cylinders IK are formed with an intake 4, an auxiliary intake part 5, and an exhaust part 6 opening into the wrinkle combustion 11. Intake---
)4 has an intake valve 7, an auxiliary intake port 5 trap has an auxiliary valve 8, and an exhaust valve has an exhaust valve ()6. The intake l-8' is connected to the main intake passage 10, and the auxiliary intake/-
) 5 is connected to the auxiliary @ intake passage 11Kg. Both the main intake passage IO and the auxiliary intake passage 11 are connected to an intake passage 13 having an air cleaner 12.
主吸気通路１０１ＣＦｉスロツトルバルブ１４が配置サ
レ、該スロットルパルプ１４の下ｆＬ＠にハ燃料噴射弁
１５が設けられる。吸気路１３には、空気流量検出装置
すなわちエアフローメータ１６畠が配置され、鋏空気流
量検出装置の出力は實イクロコンビ轟−夕から成る制御
回路１６ｔ）Ｋ与えられ、諌制御−路１６ａ）は、吸気
路１３ｔ−通る吸入空気量及び工／ジ／の運転条件に適
応した燃料供給量を演算し、制御信号を燃料噴射弁１５
に与えて所要量の燃料を主吸気通路１０に噴射する。さ
らに、燃料噴射弁１５の付近の主吸気通路内は、２重管
式熱交換器構造の外管を成す外管部１Ｇ−が形成されて
いる。補助吸気通路１１には、ベーンタイプのエア４ノ
ブよ）成る過給機１７が配置され、該過給機１７の下流
側で、過給コノトロールバルブ１８との間には過給リリ
ーフパルプ１９が設けられ、仁の過給リリーフパルプ１
９からリリーフされへ空気は＋７９−フ通路２０′ｆｔ
通して過給機の上流の補助吸気通路１１に戻されるよう
罠なっている゛。さらに該過給コア）１ｍ−ルノぐルデ
の下［Ｋは２重管式熱交換器構造の内管を成す内管部Ｉ
Ｉｍが設けられている。この内管部１１畠は放熱フィ
：／ｌｌｂ付であることが好ましい０本例においては、
燃料噴射弁１５は、液状燃料を放熱フィン１１ｂＫｖＫ
’１つけるように配置されている。熱交換器内では過給
気は高温側流体として作用し、主吸気通路内の空気及び
燃料の混合気は低温情流体として作用する。熱交換−の
内管部はフイ／付であるので一括伝熱係数を大きくする
ことができ、熱交換が効果的に行なわれる。１！らに、
本例のように燃料噴射弁１５からの燃ｆＩＩ４が液状で
内管ｌｌＫ接触する場合にはいわゆる沸騰伝熱となるの
でさらに＠括伝熱係数は大きくなる。従って、熱交換が
有効九行なわれ、低温側流体でＴｏ４上記混合気と高温
側流体である過給気との温度差は接近して燃焼室３内の
温度分布が均一化し、局部的な高温域がなくなるのでノ
ッキングが起こりにくくなる。The main intake passage 101CFi has a throttle valve 14 arranged therein, and a fuel injection valve 15 is provided below the throttle valve 14. An air flow rate detection device, ie, an air flow meter 16, is disposed in the intake passage 13, and the output of the air flow rate detection device is fed to a control circuit 16t)K consisting of an actual microcombination controller, and a control circuit 16a) is The amount of intake air passing through the intake passage 13t and the fuel supply amount adapted to the operating conditions of the engine/engine are calculated, and a control signal is sent to the fuel injection valve 15.
The required amount of fuel is injected into the main intake passage 10. Further, in the main intake passage near the fuel injection valve 15, an outer tube portion 1G-, which constitutes an outer tube of a double-tube heat exchanger structure, is formed. A supercharger 17 consisting of a vane type air 4 knob is disposed in the auxiliary intake passage 11, and a supercharge relief pulp 19 is disposed downstream of the supercharger 17 and between the supercharge control valve 18. is provided, and supercharged relief pulp 1
Air is relieved from 9 to +79-f passage 20'ft.
The air is trapped so that it is returned to the auxiliary intake passage 11 upstream of the supercharger through the air. Furthermore, the supercharging core) 1 m below Renogurude [K is the inner tube part I that forms the inner tube of the double tube heat exchanger structure
Im is provided. In this example, it is preferable that this inner tube part 11 is equipped with a heat dissipation fan.
The fuel injection valve 15 transfers the liquid fuel to the radiation fins 11bKvK.
'It is arranged so that 1 is attached. In the heat exchanger, the supercharged air acts as a high-temperature fluid, and the mixture of air and fuel in the main intake passage acts as a low-temperature fluid. Since the inner tube part of the heat exchanger is equipped with a fin, the collective heat transfer coefficient can be increased, and heat exchange can be carried out effectively. 1! Furthermore,
When the fuel fII4 from the fuel injection valve 15 is in a liquid state and comes into contact with the inner pipe llK as in this example, so-called boiling heat transfer occurs, and the heat transfer coefficient further increases. Therefore, heat exchange is carried out effectively, and the temperature difference between the To4 air-fuel mixture as the low-temperature side fluid and the supercharged air as the high-temperature side fluid becomes close, and the temperature distribution in the combustion chamber 3 becomes uniform, resulting in localized high temperatures. Since the area is eliminated, knocking becomes less likely to occur.
また燃料の一部は、高温側流体すなわち過給気より蒸発
潜熱１＋け取って気化するので、燃焼状態が良好になり
、燃費を低減化できる。またこのことは、過給気側から
見れば燃料に蒸発潜熱を与えることになるので過給気の
温度が降下するに伴い燃焼室３内の温度も全体として降
下する。従って、ノッキングの防止に寄与することとな
る。さらに、混合気の温度の低下忙より、充填効率を上
げることができ、出力の向上を図ることができる。In addition, a portion of the fuel vaporizes by absorbing 1+ latent heat of vaporization from the high-temperature fluid, that is, the supercharged air, so that the combustion state is improved and fuel consumption can be reduced. Moreover, this means that latent heat of vaporization is imparted to the fuel when viewed from the supercharged air side, so as the temperature of the supercharged air decreases, the temperature within the combustion chamber 3 as a whole also decreases. Therefore, it contributes to the prevention of knocking. Furthermore, as the temperature of the air-fuel mixture decreases, the charging efficiency can be increased and the output can be improved.
なお第２図に示すように本発明は気化器式エンジｙＴＫ
−も同様に適用することができる。第１図に対応する部
分は同一の符号で示し、その詳細な説明は省略する。こ
の場合、主吸気通路１０内には気化器３０が設けられる
。また、熱交換器は高温側流体すなわち過給気が外管内
を流通し、低温側流体すなわち混合気が内管内を流通す
る構造となっている。As shown in Fig. 2, the present invention is a carburetor type engine yTK.
- can be similarly applied. Portions corresponding to those in FIG. 1 are designated by the same reference numerals, and detailed explanation thereof will be omitted. In this case, a carburetor 30 is provided within the main intake passage 10. Further, the heat exchanger has a structure in which a high-temperature side fluid, ie, supercharged air, flows through an outer tube, and a low-temperature side fluid, ie, an air-fuel mixture, flows through an inner tube.
第７図は本発明に係る燃料噴射式エンジンの過給装置を
示すエンジンの概略図、第２図は本発明に係る気舒雫一
式エンジンの過給装置を示すエンジンの概略図である。
搏号の説明
ｌ・・・シリング、２・・・ピストン、３−・・燃焼室
、４・・・吸気／−）、５・・・補助吸気４−ト、６・
・・排気４−ト、７・・・吸気弁、８・・・補助弁、９
・・・排気弁、ｌＯ・・・主吸気通路、１１・・・補助
吸気通路、１０ｍ・・・熱交換器外管部、１１畠・・・
熱交換器内管部、１４・・・ス四ットル弁、１７・・・
過給機、１８・・・過給コントロールパルプ、１９・・
・過給リリーフパルプ。
特許出願人 東洋工業株式会社FIG. 7 is a schematic diagram of an engine showing a supercharging device for a fuel-injected engine according to the present invention, and FIG. 2 is a schematic diagram of an engine showing a supercharging device for a single-air droplet engine according to the present invention. Description of the number l... Schilling, 2... Piston, 3-... Combustion chamber, 4... Intake/-), 5... Auxiliary intake 4-t, 6...
... Exhaust 4-t, 7... Intake valve, 8... Auxiliary valve, 9
...Exhaust valve, lO...Main intake passage, 11...Auxiliary intake passage, 10m...Heat exchanger outer pipe section, 11 Hata...
Heat exchanger inner pipe section, 14...Seattle valve, 17...
Supercharger, 18...Supercharging control pulp, 19...
・Supercharged relief pulp. Patent applicant: Toyo Kogyo Co., Ltd.
Claims (1)
する過給機付エンジンにおいて、主吸気通路を流通する
吸気と、過給機下流の補助吸気通路内を流通する過給気
を熱交換させる熱交換器を、過給機下流において、前記
両級気通路に形成したことを特徴とする過給機付工７ゾ
ｙの吸気装置。 ユ 前記熱交換器における主吸気通路を流通する吸気を
燃料と空気との混合気としたことを特徴とする前記第１
項記載の過給機付エンジンの吸気装置。[Claims] / In a supercharged engine having a main intake passage and an auxiliary intake passage with a supercharger interposed therebetween, the intake air flowing through the main intake passage and the auxiliary intake passage downstream of the supercharger 7. An air intake system with a supercharger, characterized in that a heat exchanger for exchanging heat with the supercharged air flowing through the supercharged air is formed in the both class air passages downstream of the supercharger. (Y) The first method characterized in that the intake air flowing through the main intake passage in the heat exchanger is a mixture of fuel and air.
Intake system for a supercharged engine as described in .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56117972A JPS5840005B2 (en) | 1981-07-28 | 1981-07-28 | Intake system for supercharged engines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56117972A JPS5840005B2 (en) | 1981-07-28 | 1981-07-28 | Intake system for supercharged engines |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5820924A true JPS5820924A (en) | 1983-02-07 |
| JPS5840005B2 JPS5840005B2 (en) | 1983-09-02 |
Family
ID=14724827
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56117972A Expired JPS5840005B2 (en) | 1981-07-28 | 1981-07-28 | Intake system for supercharged engines |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5840005B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4856368A (en) * | 1987-06-26 | 1989-08-15 | Kanzaki Kokyukoki Mfg. Co. Ltd. | HST (hydrostatic transmission) containing axle drive apparatus |
| US4922787A (en) * | 1987-06-26 | 1990-05-08 | Kanzaki Kokyukoki Mfg. Co. Ltd. | HST (hydrostatic transmission) housing axle driving apparatus |
| US5040649A (en) * | 1988-06-03 | 1991-08-20 | Kanzaki Kokyukoki Mfg. Co., Ltd. | HST type axle driving apparatus with brake and transmission interlock |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6273808U (en) * | 1985-10-25 | 1987-05-12 |
-
1981
- 1981-07-28 JP JP56117972A patent/JPS5840005B2/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4856368A (en) * | 1987-06-26 | 1989-08-15 | Kanzaki Kokyukoki Mfg. Co. Ltd. | HST (hydrostatic transmission) containing axle drive apparatus |
| US4922787A (en) * | 1987-06-26 | 1990-05-08 | Kanzaki Kokyukoki Mfg. Co. Ltd. | HST (hydrostatic transmission) housing axle driving apparatus |
| US4942780A (en) * | 1987-06-26 | 1990-07-24 | Kanzaki Kokyukoki Mfg., Co., Ltd. | HST(hydrostatic transmission) housing axle driving apparatus |
| US5040649A (en) * | 1988-06-03 | 1991-08-20 | Kanzaki Kokyukoki Mfg. Co., Ltd. | HST type axle driving apparatus with brake and transmission interlock |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5840005B2 (en) | 1983-09-02 |
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