JPS59138721A - Suction port - Google Patents
Suction portInfo
- Publication number
- JPS59138721A JPS59138721A JP58012898A JP1289883A JPS59138721A JP S59138721 A JPS59138721 A JP S59138721A JP 58012898 A JP58012898 A JP 58012898A JP 1289883 A JP1289883 A JP 1289883A JP S59138721 A JPS59138721 A JP S59138721A
- Authority
- JP
- Japan
- Prior art keywords
- swirl ratio
- port
- low
- engine
- ratio port
- 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
- 239000000446 fuel Substances 0.000 abstract description 5
- 239000000779 smoke Substances 0.000 abstract description 5
- 230000003213 activating effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002265 prevention Effects 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
- F02B31/00—Modifying induction systems for imparting a rotation to the charge in the cylinder
- F02B31/08—Modifying induction systems for imparting a rotation to the charge in the cylinder having multiple air inlets
-
- 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
- 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)
Abstract
Description
【発明の詳細な説明】
本発明はエンジンの吸気ポートにおける吸気のスワール
に係り、低高速回転特別に夫々に適したスワールを得る
ために吸気ポートを切替えることに関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to the swirl of intake air at the intake port of an engine, and relates to switching the intake port in order to obtain a swirl particularly suited to low and high speed rotations.
ここにいうスワールとは吸気ポート内に於ける吸気の回
転をいい、スワール比とはエンジン回転数に対する吸気
の回転数の比をいう。Swirl here refers to the rotation of the intake air within the intake port, and the swirl ratio refers to the ratio of the rotational speed of the intake air to the engine rotational speed.
一定の吸気ポートでエンジン回転数を変化させるとスワ
ール比は略回転数に比例するといわれている。その関係
を図示したものが第１図である。It is said that when the engine speed is changed at a constant intake port, the swirl ratio is approximately proportional to the speed. FIG. 1 illustrates this relationship.
又スワール比とエンジン性能の燃費及び煙量の多少を見
ると低回転においてはスワール比が大きい程燃費が小さ
く煙も少く良結果が得られ、エンジンの高回転時にはス
ワール比が大きい程燃費が大きく煙量も多く結果は不良
であるその関係を図示したものが第２図及び第３図であ
る。Also, looking at the swirl ratio and the amount of fuel consumption and smoke amount of engine performance, at low engine speeds, the higher the swirl ratio, the lower the fuel consumption and less smoke, giving better results, and at high engine speeds, the higher the swirl ratio, the higher the fuel consumption. Figures 2 and 3 illustrate the relationship in which the amount of smoke is large and the results are poor.
上記の事項を換言すれば、一定形の吸気ポートを備える
従来の自動車エンジンが低速回転から高速回転まで広範
囲な速度で駆動している状況ではエンジン性能の悪い部
分をも使わざるを得ないことである。In other words, when a conventional automobile engine with a fixed intake port is operated at a wide range of speeds from low to high speeds, it is necessary to use parts of the engine with poor performance. be.
然し、エンジンが低回転時の低スワール比又は筒回転時
の高スワール比の状態即ち悪い性能で駆動されている時
、もし夫々スワール比を高く又は低く変更することが出
来れば、エンジンは常に良好な性能のもとに駆動される
筈である。本発明はこのスワール比全変更するエンジン
回転数することを目的とするものである。However, when the engine is running at low swirl ratio at low rpm or high swirl ratio at cylinder rotation, i.e. with bad performance, if the swirl ratio can be changed higher or lower respectively, the engine will always be good. It should be driven with excellent performance. The object of the present invention is to completely change the swirl ratio and the engine speed.
従来１シリンダに対しては１吸気ポートであったが本発
明に於ては２個の吸気ポートを並べ備えるもので、一方
は従来よｐ高スワール比吸気ポートとし、他方はこれに
隣接する入口よｐ入シ上記のものに合流するポートであ
って、従来のものより低スワール比を持つ様に作成され
る。各ポート入口には弁板を設けその時の回転数に応じ
て一方を開き他方を閉じるか、又は１個の弁板を移動さ
せていずれか一方を閉じる方法を取るものとする。Conventionally, there was one intake port for one cylinder, but in the present invention, two intake ports are arranged side by side, one being the high p swirl ratio intake port as in the past, and the other being the inlet port adjacent to it. This is a port that joins the above one, and is made to have a lower swirl ratio than conventional ones. A valve plate is provided at each port inlet, and one valve plate is opened and the other is closed depending on the rotational speed at that time, or one valve plate is moved to close one of the valve plates.
該弁板の切替はエンジンの回転数が一定値に達した時油
圧シリンダ、電磁升或いはエヤチャンバ等を作動させて
行い、その電流で運転台の・ぐイロットランプを点滅さ
せると更に便利である。It is more convenient to switch the valve plate by activating a hydraulic cylinder, electromagnetic chamber, air chamber, etc. when the engine speed reaches a certain value, and using the current to flash the pilot lamp on the driver's cab.
次に実施例を図面について説明する。第４図は従来の吸
気ポートの平面説明図であシ、第５図は本発明の吸気ポ
ートの平面説明図で、第６図はその側面説明図である。Next, embodiments will be described with reference to the drawings. FIG. 4 is an explanatory plan view of a conventional intake port, FIG. 5 is an explanatory plan view of the intake port of the present invention, and FIG. 6 is an explanatory side view thereof.
１は低スワール比ポート、２は高スワール比ポートで両
ポートは入口が夫々１ａ及２ａで隣接しているが、シリ
ンダヘッド内では合流し、パルプステム３の回９を旋回
する。1 is a low swirl ratio port, and 2 is a high swirl ratio port. Both ports have inlets 1a and 2a adjacent to each other, respectively, but merge in the cylinder head and swirl around 9 of the pulp stem 3.
ポート入口１． ａ 、 ２ ａには１枚の弁板４がい
づれかのポート入ロヲ遮断する様にスライド自在に取付
けられている。エンジンの全弁板４は水平な１本の弁連
結棒５に固定され、弁連結棒５窃一端はオイルシリンダ
６のピストンに連結されている。Port entrance 1. A valve plate 4 is slidably attached to a and 2a so as to block entry to either port. All valve plates 4 of the engine are fixed to one horizontal valve connecting rod 5, and one end of the valve connecting rod 5 is connected to a piston of an oil cylinder 6.
オイルシリンダ６の油圧はオイルポンプ７よシ送られる
。オイルポンプ７のモーターは電源８に配線されるがそ
のスイッチ９はチェンジレノぐ−１１に取付けられ、高
速に入れられた時に同時に入る様に構成される。更に電
源配線の１部を運転席・ぞネルのパイロントランプに結
線する。The oil pressure in the oil cylinder 6 is sent to the oil pump 7. The motor of the oil pump 7 is wired to a power source 8, and its switch 9 is attached to a change lever 11 so that it is turned on at the same time when the oil pump is turned on at high speed. Furthermore, connect part of the power supply wiring to the pylon lamp of the driver's seat/zone.
上記の如き構成に於てその作動を説明すると車輛がスタ
ートしてエンノンが低回転の間は各シリンダの低スワー
ル比ポート入口１ａを閉じることにより、高スワール比
ポート２を使用してエンジン性能の良い範囲を使用し、
高速レバー１１を入れると同時にオイルポンプ６゛が作
動して、全シリンダの弁板４を移動して、高スワール比
ポートの入口２ａを遮断し、吸気は低スワール比ポート
１を通過する様になり、高速時にもエンジン性能の良い
範囲を使用することができる。尚この時は運転席／４’
ネルにパイロットランプ１０が点灯して運転者に低スワ
ール、比ポート１ｆ：使用している゛ことを知らせる。To explain the operation in the above configuration, when the vehicle is started and the ennon is at low rotation speed, the low swirl ratio port inlet 1a of each cylinder is closed, and the high swirl ratio port 2 is used to improve engine performance. Use a good range,
At the same time as the high-speed lever 11 is turned on, the oil pump 6' is activated, and the valve plates 4 of all cylinders are moved to block the inlet 2a of the high swirl ratio port, so that the intake air passes through the low swirl ratio port 1. This allows the engine to use a good range of performance even at high speeds. At this time, the driver's seat/4'
The pilot lamp 10 lights up on the channel to inform the driver that low swirl and ratio port 1f are in use.
尚スイッチ９を高速チェンジレバー１１に取付ける代り
にエンジン回転数が一定以上になると自動的に切替えら
れる様にする方が更にエンジンの性能を高く使用するこ
とができる。Incidentally, instead of attaching the switch 9 to the high-speed change lever 11, the performance of the engine can be further improved if the switch is automatically switched when the engine speed exceeds a certain level.
上記の如く本発明によれば殆んど常時の走行ＶＣ防止に
も大きく薔与するものである。As described above, the present invention greatly contributes to the prevention of running VC almost all the time.
第１図はスワール比とエンジン回転数の関係を示す図で
あり、第２図、第３図は夫々エンジンの低回転数高回転
数の時のスワール比とエンジン性能（燃費と煙量）との
関係傾向を示す図で、第４図は従来吸気ポートの平面説
明図、第５図は本発明Ｖこよる吸気ポートの平面説明図
、第６図はその側面図と弁板の作動を示す図である。
１ 低スワール比ポ〜１・、２：゛高スワール比ポート
、１ａ：低スワール比ポート人口、２ａ：尚スワール比
ポート入口、３：バルブ、４：弁板、５：弁連結棒、６
：オイルシリンダ、７：油ポンプ、９：スイッチ、１０
ニパイロソトランプ。
特許出願人 日野自動車工業株式会社出願代理人
弁理士伊東 峻
第１図
第２゜ 第３図Figure 1 shows the relationship between swirl ratio and engine speed, and Figures 2 and 3 show the relationship between swirl ratio and engine performance (fuel efficiency and smoke amount) at low and high engine speeds, respectively. FIG. 4 is a plan view of a conventional intake port, FIG. 5 is a plan view of an intake port according to the present invention, and FIG. 6 is a side view thereof and the operation of the valve plate. It is a diagram. 1 Low swirl ratio port ~ 1・, 2: High swirl ratio port, 1a: Low swirl ratio port population, 2a: Still swirl ratio port inlet, 3: Valve, 4: Valve plate, 5: Valve connecting rod, 6
:Oil cylinder, 7:Oil pump, 9:Switch, 10
Nipairoso Trump. Patent applicant Hino Motors Co., Ltd. Application agent
Patent Attorney Shun ItoFigure 1Figure 2゜Figure 3
Claims (1)
比ポートと低スヮーノ込ボートの２個宛を備え低回転時
に高スワール比ポートを、高回転時え には低スワール比２、ポートを切替え使用することを特
徴とする吸気ポート。[Claims] The intake ports for each cylinder of the engine are two ports, a high swirl ratio port and a low swirl port. An intake port characterized by switching between ports.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58012898A JPS59138721A (en) | 1983-01-31 | 1983-01-31 | Suction port |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58012898A JPS59138721A (en) | 1983-01-31 | 1983-01-31 | Suction port |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59138721A true JPS59138721A (en) | 1984-08-09 |
Family
ID=11818199
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58012898A Pending JPS59138721A (en) | 1983-01-31 | 1983-01-31 | Suction port |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59138721A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2741669A1 (en) * | 1995-11-24 | 1997-05-30 | Renault | I.C. engine charge intake |
-
1983
- 1983-01-31 JP JP58012898A patent/JPS59138721A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2741669A1 (en) * | 1995-11-24 | 1997-05-30 | Renault | I.C. engine charge intake |
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