JPS6193228A - Idle mechanism for engine using slide valve - Google Patents

Idle mechanism for engine using slide valve

Info

Publication number
JPS6193228A
JPS6193228A JP59213974A JP21397484A JPS6193228A JP S6193228 A JPS6193228 A JP S6193228A JP 59213974 A JP59213974 A JP 59213974A JP 21397484 A JP21397484 A JP 21397484A JP S6193228 A JPS6193228 A JP S6193228A
Authority
JP
Japan
Prior art keywords
idle
slide valve
intake manifold
suction
valve
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
Application number
JP59213974A
Other languages
Japanese (ja)
Inventor
Hirohiko Iwamoto
裕彦 岩本
Takashi Fujimoto
隆 藤本
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.)
Mitsubishi Motors Corp
Original Assignee
Mitsubishi Motors 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 Mitsubishi Motors Corp filed Critical Mitsubishi Motors Corp
Priority to JP59213974A priority Critical patent/JPS6193228A/en
Publication of JPS6193228A publication Critical patent/JPS6193228A/en
Pending legal-status Critical Current

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
    • F02M35/10006—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
    • F02M35/10078—Connections of intake systems to the engine
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
    • F02D9/08—Throttle valves specially adapted therefor; Arrangements of such valves in conduits
    • F02D9/12—Throttle valves specially adapted therefor; Arrangements of such valves in conduits having slidably-mounted valve members; having valve members movable longitudinally of conduit
    • F02D9/14—Throttle valves specially adapted therefor; Arrangements of such valves in conduits having slidably-mounted valve members; having valve members movable longitudinally of conduit the members being slidable transversely of conduit
    • 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
    • F02M35/108—Intake manifolds with primary and secondary intake passages
    • F02M35/1085—Intake manifolds with primary and secondary intake passages the combustion chamber having multiple intake valves
    • 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

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

PURPOSE:To stabilize suction air in time of idling, by opening or closing a suction manifold with a slide valve, while installing an idle suction passage in a way of bypassing the slide valve. CONSTITUTION:Suction air out of a surge tank 7 is fed to each cylinder through a suction manifold 6. At each suction manifold 6, there is provided with a slide valve 9, and with the slide motion of which, a suction air quantity is controlled. Bypassing this slide valve 9, idling air is fed to an idle suction port 10a from an idle suction manifold 10. An idle adjusting valve 11 is set up at the upstream of the idle suction manifold whereby the air quantity is controlled for adjustment manually or automatically. With this constitution, unstableness in an idle due to defective sealability in the slide valve is well reduced.

Description

【発明の詳細な説明】 この発明は、スロットルバルブとしてスライドバルブを
用いたエンジンのアイドル機構に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an engine idle mechanism using a slide valve as a throttle valve.

スライドバルブによって吸気量を加減する形式のエンジ
ンは、構造が比較的単純であって、トルクの立上がりが
早いという特性を有している。しかし、１枚のバルブで
複数の気筒の吸気マニホールドを開閉するため、アイド
ル時における吸気量にばらつきが生じる。すなわち、ア
イドル時において、スライドバルブは各気筒に均等な吸
気量を配分すべく吸気マニホールドを開いていなければ
ならないのであるが、シール性があまり良くないことと
、加工精度のばらつきによって、吸気量にばらつきが出
る。特に吸気量の少ないアイドル時の吸気量のばらつき
は、エンジンに大きな影響を与える。これの対策として
は、加工精度を上げることであるが、多生産エンジンと
するにはコスト高となる欠点である。従って、スライド
バルブを用いたエンジンは、アイドル回転を考慮しなく
て済むモータースポーツ用に用いられているのが現状で
あり、実用量産エンジンとしては実用化されていない。Engines in which the amount of intake air is controlled by a slide valve have a relatively simple structure and are characterized by a rapid build-up of torque. However, since a single valve opens and closes the intake manifolds of multiple cylinders, variations occur in the amount of intake air during idling. In other words, when idling, the slide valve must open the intake manifold in order to evenly distribute the amount of intake air to each cylinder, but due to poor sealing performance and variations in processing accuracy, the amount of intake air is There will be variations. In particular, variations in the intake air amount during idling, when the intake air amount is small, have a large effect on the engine. A countermeasure to this problem is to increase the machining accuracy, but this is a disadvantage of high costs for high-volume engines. Therefore, engines using slide valves are currently used for motor sports where there is no need to take idle rotation into account, and have not been put to practical use as mass-produced engines.

本発明は、安定したアイドル回転が得られる。According to the present invention, stable idle rotation can be obtained.

スライドバルブを用いたエンジンのアイドル機構の提供
を目的とする。The purpose is to provide an engine idle mechanism using a slide valve.

本発明は、スライドバルブのシール性を克服するための
、当該バルブによるアイドル吸気をなくして、このバル
ブを迂回して設けたアイドル吸気マニホールドによって
アイドル調整を行なう構成に特徴がある。The present invention is characterized by a configuration in which, in order to overcome the sealing performance of the slide valve, idle intake by the valve is eliminated and idle adjustment is performed by an idle intake manifold provided around the valve.

以下１図示の実施例によって本発明の詳細な説明する。The present invention will be described in detail below with reference to one illustrated embodiment.

第１図及び第２図において、符号１は燃焼室を示してい
る。燃焼室１には排気ポート２，２と吸気ボート３ａ、
　３ｂがそれぞれ設けられている。各ボートには、それ
ぞれ排気弁４、吸気弁５が設けられている。各吸気ボー
ト３ａ、　３ｂは、吸気マニホールド６を介してサージ
タンク７に連通されている。In FIGS. 1 and 2, reference numeral 1 indicates a combustion chamber. The combustion chamber 1 includes exhaust ports 2, 2 and an intake boat 3a,
3b are provided respectively. Each boat is provided with an exhaust valve 4 and an intake valve 5, respectively. Each intake boat 3a, 3b is communicated with a surge tank 7 via an intake manifold 6.

吸気マニホールド６は、シリンダヘッド８のガイド部８
ａに摺動自在に支持されたスライドバルブ９によって開
閉される。スライドバルブ９は、図示されない機構を介
してアクセルペダルに連結されていて、該ペダルの踏込
量（詳細は後述する）に連動して摺動する。スライドバ
ルブ９は、細長い板状体であって、吸気マニホールド６
を全閉できる広さの開口部９ａを有している。また、ス
ライドバルブ９には、図示されない手段によって、吸気
マニホールド６を閉じる向きの移動習性が与えられてい
て、アクセルペダル（図示せず）が踏み込まれていない
アイドル時には、マニホールド６を全閉するようになっ
ている。この場合、スライドバルブ９による吸気マニホ
ールド６の完全な閉塞は実用上困難であるが、僅かな洩
れによる、後述するアイドル時の各気筒間の吸気量ばら
つきは極少となり、許容範囲に充分収まるものである。The intake manifold 6 is connected to the guide portion 8 of the cylinder head 8.
It is opened and closed by a slide valve 9 slidably supported by a. The slide valve 9 is connected to an accelerator pedal via a mechanism not shown, and slides in conjunction with the amount of depression of the pedal (details will be described later). The slide valve 9 is an elongated plate-like body, and is connected to the intake manifold 6.
It has an opening 9a large enough to completely close the opening. Furthermore, the slide valve 9 is given a movement behavior in the direction of closing the intake manifold 6 by a means not shown, so that the manifold 6 is fully closed during idle time when the accelerator pedal (not shown) is not depressed. It has become. In this case, it is practically difficult to completely block the intake manifold 6 with the slide valve 9, but the variation in intake air amount between cylinders at idle, which will be described later, due to slight leakage will be extremely small and well within the allowable range. be.

矢印ａで示す吸気の流れ方向において、スライドバルブ
９の下流の吸気マニホールド６には、アイドル吸気ポー
ト１０ａが開口している。このアイドル吸気ポート１０
ａには、アイドル吸気マニホールド１０の一端が接続さ
れている。このマニホールド１０は、スライドバルブ９
を迂回していて、その他端をサージタンク７に接続され
ている。アイドル吸気マニホールド１０は各気筒へ延び
ていて、その最上流にはアイドル調整バルブ１１が配設
されている。このアイドル調整バルブ１１は、アイドル
吸気マニホールド１０の通気面積を可変してアイドル吸
気量を調整するものであって、形式としてはバタフライ
バルブやりニヤソレノイドバルブ等の適宜のものが選択
されている。アイドル吸気ポート１０ａは、アイドル時
のスワール発生のために、吸気ボート３ａがわに偏位し
て配設されている。An idle intake port 10a is open in the intake manifold 6 downstream of the slide valve 9 in the intake air flow direction indicated by arrow a. This idle intake port 10
One end of the idle intake manifold 10 is connected to a. This manifold 10 has a slide valve 9
The other end is connected to the surge tank 7. The idle intake manifold 10 extends to each cylinder, and an idle adjustment valve 11 is disposed at the most upstream side thereof. The idle adjustment valve 11 adjusts the idle intake air amount by varying the ventilation area of the idle intake manifold 10, and is selected from an appropriate type such as a butterfly valve or a near solenoid valve. The idle intake port 10a is disposed offset to the side of the intake boat 3a in order to generate swirl during idle.

以上のように構成された実施例の作用を説明する。The operation of the embodiment configured as above will be explained.

第２図はアクセルペダルが踏み込まれていない状態、い
わゆるアイドル状態を示していて、スライドバルブ９は
、各気筒の吸気マニホールド６を全閉している。このと
き、アイドル吸気マニホールド１０は、サージタンク７
と吸気ボート３ａ、　３ｂ側の吸気マニホールド６を連
通しているので、燃焼に伴う吸気はこのマニホールド１
０を介して供給される。アイドル時の吸気量は、アイド
ル調整バルブ１１の調整による通気面積の変更により最
適のものに設定される。このアイドル調整は手動或いは
自動的に行なう。FIG. 2 shows a state in which the accelerator pedal is not depressed, a so-called idling state, and the slide valve 9 fully closes the intake manifold 6 of each cylinder. At this time, the idle intake manifold 10 is connected to the surge tank 7.
and the intake manifold 6 on the intake boats 3a and 3b side, the intake air accompanying combustion flows through this manifold 1.
0. The amount of intake air during idling is set to an optimal value by changing the ventilation area by adjusting the idle adjustment valve 11. This idle adjustment is performed manually or automatically.

エンジンのアイドル時には、吸気マニホールド６を全閉
してしまうので、スライドバルブ９の加工精度が多少低
くても、このアイドル回転はアイドル吸気マニホールド
１０の通気面積で制御されるから、各気筒間におけるア
イドル回転のばらつきがなくなりその安定性が格段に向
上する。従って、スライドバルブを用いたエンジンの量
産化が可能となり、スロットルレスポンスのよいエンジ
ンを実用化できる。When the engine is idling, the intake manifold 6 is fully closed, so even if the machining accuracy of the slide valve 9 is somewhat low, this idle rotation is controlled by the ventilation area of the idle intake manifold 10, so the idle rotation between each cylinder is controlled by the ventilation area of the idle intake manifold 10. This eliminates variations in rotation and greatly improves stability. Therefore, mass production of engines using slide valves is possible, and engines with good throttle response can be put to practical use.

次に、アクセルペダルを踏み込むと、スライドバルブ９
は第３図に示すように移動して、その間口９ａを吸気マ
ニホールド６内に位置させて吸気量を増大させる。吸気
マニホールド６の通気面積は。Next, when you step on the accelerator pedal, slide valve 9
moves as shown in FIG. 3 to position the opening 9a within the intake manifold 6 to increase the amount of intake air. What is the ventilation area of intake manifold 6?

これの一方の側から次第に拡大されるので、複合吸気弁
を備えたエンジンの低速回転、すなわち吸気量が少ない
場合のスワール発生に効果的である。Since it is gradually expanded from one side, it is effective in generating swirl when an engine equipped with a composite intake valve rotates at low speed, that is, when the amount of intake air is small.

また、アイドル時におけるスライドバルブ９のシール性
を高めると共に、アクセルオン時のもたつきをなくすた
め、アクセルペダル踏込量とスライドバブルブ開度には
、初期域に不感帯を設定する。すなわち、第４図に符号
Ａで示すように、アクセルペダルを僅かに踏み込んだだ
けでは、吸気マニホールド９の通気面積は「零」である
ように、換言すると、同マニホールド９が全閉の状態を
保つようになっている。この不感帯が最小に抑えられる
ことはいうまでもない。Furthermore, in order to improve the sealing performance of the slide valve 9 during idling and eliminate sluggishness when the accelerator is turned on, a dead band is set in the initial range of the accelerator pedal depression amount and the slide valve opening. In other words, as shown by the symbol A in FIG. 4, when the accelerator pedal is only slightly depressed, the ventilation area of the intake manifold 9 is "zero." In other words, the manifold 9 is in a fully closed state. It is designed to be kept. Needless to say, this dead zone can be minimized.

【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を示す概略構成図。 第２図は同上のアイドル状態を示す平面図、第３図は同
上のアクセルオンの状態を示す平面図、第４図はアクセ
ルペダル踏込量と吸気マニホールドの通気面積の関係を
示す線図である。 １・・・燃焼室、　３ａ、３ｂ・・・吸気ボート、６・
・・吸気マニホールド、７・・・サージタンク、９・・
・スライドバルブ、１０・・・アイドル吸気マニホール
ド６条（図 俤２図 梯　乙 一込量 ００ｚFIG. 1 is a schematic configuration diagram showing an embodiment of the present invention. Fig. 2 is a plan view showing the idle state of the above, Fig. 3 is a plan view showing the accelerator on state of the above, and Fig. 4 is a diagram showing the relationship between the accelerator pedal depression amount and the ventilation area of the intake manifold. . 1... Combustion chamber, 3a, 3b... Intake boat, 6.
...Intake manifold, 7...Surge tank, 9...
・Slide valve, 10... Idle intake manifold 6 rows (Fig.

Claims (1)

【特許請求の範囲】 吸気マニホールドをスライドバルブによって開閉する形
式のエンジンにおいて、 吸気マニホールドを全閉可能に設けられたスライドバル
ブと、 吸気の流れ方向において、その一端をスライドバルブの
下流の吸気マニホールドに開口させ、その他端をスライ
ドバルブの上流の吸気マニホールドに開口させていて、
上記スライドバルブを迂回して配設されたアイドル吸気
マニホールドと、このアイドル吸気マニホールドに設け
られていて、この通気面積を可変するアイドル調整バル
ブとを具備したことを特徴とするアイドル機構。[Claims] In an engine in which an intake manifold is opened and closed by a slide valve, there is provided a slide valve that is provided to fully close the intake manifold, and one end of which is connected to the intake manifold downstream of the slide valve in the flow direction of intake air. with the other end open into the intake manifold upstream of the slide valve,
An idle mechanism comprising: an idle intake manifold arranged to bypass the slide valve; and an idle adjustment valve provided on the idle intake manifold to vary the ventilation area.
JP59213974A 1984-10-12 1984-10-12 Idle mechanism for engine using slide valve Pending JPS6193228A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP59213974A JPS6193228A (en) 1984-10-12 1984-10-12 Idle mechanism for engine using slide valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59213974A JPS6193228A (en) 1984-10-12 1984-10-12 Idle mechanism for engine using slide valve

Publications (1)

Publication Number Publication Date
JPS6193228A true JPS6193228A (en) 1986-05-12

Family

ID=16648145

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59213974A Pending JPS6193228A (en) 1984-10-12 1984-10-12 Idle mechanism for engine using slide valve

Country Status (1)

Country Link
JP (1) JPS6193228A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2731045A1 (en) * 1995-02-24 1996-08-30 Renault IC. engine feed control system
FR2774125A1 (en) * 1998-01-29 1999-07-30 Peugeot Internal combustion engine cylinder head air inlet duct controller
EP0930431A3 (en) * 1998-01-14 2000-05-03 Yamaha Hatsudoki Kabushiki Kaisha Intake system for an internal combustion engine with at least two cylinders
US6446599B1 (en) * 1998-10-28 2002-09-10 Sanshin Kogyo Kabushiki Kaisha Idle speed control for engine
US6543429B2 (en) 2000-07-14 2003-04-08 Sanshin Kogyo Kabushiki Kaisha Air induction system for engine
US6739313B2 (en) 2000-10-11 2004-05-25 Yamaha Marine Kabushiki Kaisha Air induction system for multi-cylinder engine

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2731045A1 (en) * 1995-02-24 1996-08-30 Renault IC. engine feed control system
EP0930431A3 (en) * 1998-01-14 2000-05-03 Yamaha Hatsudoki Kabushiki Kaisha Intake system for an internal combustion engine with at least two cylinders
FR2774125A1 (en) * 1998-01-29 1999-07-30 Peugeot Internal combustion engine cylinder head air inlet duct controller
WO1999039091A1 (en) * 1998-01-29 1999-08-05 Automobiles Peugeot Device for controlling the opening and closing of at least an internal combustion engine cylinder head air conduit
US6446599B1 (en) * 1998-10-28 2002-09-10 Sanshin Kogyo Kabushiki Kaisha Idle speed control for engine
US6543429B2 (en) 2000-07-14 2003-04-08 Sanshin Kogyo Kabushiki Kaisha Air induction system for engine
US6739313B2 (en) 2000-10-11 2004-05-25 Yamaha Marine Kabushiki Kaisha Air induction system for multi-cylinder engine

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