JPS6154935B2 - - Google Patents
Info
- Publication number
- JPS6154935B2 JPS6154935B2 JP14315882A JP14315882A JPS6154935B2 JP S6154935 B2 JPS6154935 B2 JP S6154935B2 JP 14315882 A JP14315882 A JP 14315882A JP 14315882 A JP14315882 A JP 14315882A JP S6154935 B2 JPS6154935 B2 JP S6154935B2
- Authority
- JP
- Japan
- Prior art keywords
- throttle valve
- negative pressure
- intake
- carburetor
- intake negative
- 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.)
- Expired
Links
Classifications
-
- 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
- F02D9/02—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits concerning induction conduits
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)
Description
【発明の詳細な説明】
本発明は、自動車用の内燃機関において、その
気化器のスロツトル弁を大きく開いたときにおけ
る最大トルクを増減調節できるようにした装置に
関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device that can increase or decrease the maximum torque when the throttle valve of a carburetor of an internal combustion engine for an automobile is wide open.
気化器式の内燃機関における気化器は、そのス
ロツトル弁を大きく開いたときに高出力が得られ
るようにスロツトル弁の開につれて空燃比を濃く
するように設定しているから、その燃料消費量
は、スロツトル弁を大きく開く頻度が高いほど及
びスロツトル弁を大きく開いている時間が長いほ
ど、増大することは周知の通りであり、また、自
動車の市街地走行は、発進と停止の繰り返しで、
スロツトル弁を大きく開く頻度が高い。 The carburetor in a carburetor-type internal combustion engine is set to increase the air-fuel ratio as the throttle valve opens so that high output can be obtained when the throttle valve is wide open, so the fuel consumption is It is well known that the higher the frequency of opening the throttle valve, and the longer the time the throttle valve is opened, the greater the increase.
The throttle valve is opened wide frequently.
一方、自動車用内燃機関は、高速走行及び登坂
走行時に大きなトルクを必要とするため、スロツ
トル弁の全開又は全開に近いときに大きなトルク
が出るように設計するが、市街地走行では加速運
転の距離及び時間が短かいので大きなトルクが必
要でないにもかゝわらず、発進や加速時にスロツ
トル弁を大きく開く頻度が多いから、燃料を無駄
に消費するのであつた。 On the other hand, internal combustion engines for automobiles require large torque when driving at high speeds and climbing hills, so they are designed to produce large torque when the throttle valve is fully open or close to fully opening. Even though the time is short and large torque is not required, the throttle valve is frequently opened wide when starting or accelerating, which wastes fuel.
本発明は、このような自動車用内燃機関におい
て、スロツトル弁を大きく開いたときの最大トル
クが、一定値を越えないように抑制したり、この
抑制を解除したりするように切換え調節操作でき
るようにして、高速走行及び登坂走行時に必要な
高トルクを減ずることなく、市街地走行時におけ
る燃料の無駄消費を節約できるようにしたもので
あつて、その要旨とする所は、機関の吸気通路中
に設けたスロツトル弁付き気化器の下流に、スロ
ツトル弁より下流の吸気負圧が大気圧に近いある
値より大気圧側に小さくなつたとき閉じるように
した第２絞り弁を設け、該第２絞り弁には、吸気
負圧にかゝわらず当該第２絞り弁を開位置に保持
し、その保持を解除するようにした切換操作手段
を設けたことにある。 The present invention provides an internal combustion engine for automobiles that can be operated to control the maximum torque so that it does not exceed a certain value when the throttle valve is wide open, or to cancel this suppression. This makes it possible to reduce wasted fuel consumption when driving in urban areas without reducing the high torque required when driving at high speeds and climbing hills. A second throttle valve is provided downstream of the carburetor with a throttle valve, which closes when the intake negative pressure downstream of the throttle valve becomes smaller than a certain value close to atmospheric pressure on the atmospheric pressure side. The valve is provided with a switching operation means that holds the second throttle valve in the open position regardless of the intake negative pressure and releases the holding.
以下本発明を実施例の図面について説明する
に、図においてＡは第１気筒A1、第２気筒A2及
び第３気筒A3を有する内燃機関、１は一本の集
合管２と、該集合管２から前記各気筒における吸
気ポート３，４，５に向つて分岐する吸気管６，
７，８とを有する吸気マニホールドを各々示し、
該吸気マニホールド１の集合管２の上流には、ア
クセルペダル（図示せず）によつて開閉操作され
るスロツトル弁９を備えた気化器１０が接続され
ている。 The present invention will be described below with reference to drawings of embodiments. In the drawings, A is an internal combustion engine having a first cylinder A 1 , a second cylinder A 2 and a third cylinder A 3 , 1 is a collecting pipe 2, and an intake pipe 6 that branches from the collecting pipe 2 toward the intake ports 3, 4, and 5 in each of the cylinders;
7 and 8 respectively,
A carburetor 10 equipped with a throttle valve 9 that is opened and closed by an accelerator pedal (not shown) is connected upstream of the collecting pipe 2 of the intake manifold 1.
前記吸気マニホールド１における集合管２内に
は、弁軸３０の回転によつて開閉作動するバタフ
ライ式の第２絞り弁１１を設け、弁軸３０に固着
したレバー１２に第２絞り弁１１を閉方向に付勢
するばね１３を係着する。この場合、第２絞り弁
１１の閉位置は、全閉から適宜開いた位置におい
てレバー１２がストツパー１４に接当することに
より全閉から適宜開いた位置に規定され、また、
第２絞り弁１１の全開位置はレバー１２がストツ
パー１５に接当する位置に規定されている。前記
レバー１２を自動車の運転席の近くに設けた切換
操作用ノブ１６に、当該ノブ１６を矢印Ｂ方向に
引くと第２絞り弁１１が全開となるようにワイヤ
ー１７を介して連結し、ノブ１６はこれを引いた
位置で凹所１８に係合する係止片１９にて係脱自
在に係止するようにする。 A butterfly-type second throttle valve 11 is provided in the collecting pipe 2 of the intake manifold 1 and is opened and closed by the rotation of the valve shaft 30, and the second throttle valve 11 is closed by a lever 12 fixed to the valve shaft 30. A spring 13 is engaged to bias the direction. In this case, the closed position of the second throttle valve 11 is defined by the lever 12 coming into contact with the stopper 14 at a position appropriately opened from fully closed, and
The fully open position of the second throttle valve 11 is defined as the position where the lever 12 contacts the stopper 15. The lever 12 is connected to a switching knob 16 provided near the driver's seat of the automobile via a wire 17 so that when the knob 16 is pulled in the direction of arrow B, the second throttle valve 11 is fully opened. 16 is removably locked by a locking piece 19 that engages with the recess 18 in the pulled position.
２０は吸気マニホールド１にブラケツト２１に
て取付けたダイヤフラム機構で、このダイヤフラ
ム機構２０はロツド２２付きダイヤフラム２３を
内蔵し、該ダイヤフラム２３にて区成したダイヤ
フラム室２４内には、ダイヤフラム２３をロツド
２２の突出方向に付勢するばね２５を設けると共
に吸気マニホールド１内の吸気負圧を負圧通路２
６を介して導入することにより、吸気負圧が大気
寄りのある値（例えば−70〜−100mmHg）より真
空側に大きいときロツド２２が引込むように後退
し、前記ある値より大気側に小さくなるとロツド
２２が突出するように構成し、このダイヤフラム
機構２０におけるロツド２２を、前記第２絞り弁
１１の弁軸１０に固着の連結片２７に穿設した長
溝孔２８に、ロツド２２の後退によつて第２絞り
弁１１が開き、ロツド２２の突出によつて第２絞
り弁１１が閉じるように連結して成るものであ
る。 Reference numeral 20 denotes a diaphragm mechanism attached to the intake manifold 1 with a bracket 21. This diaphragm mechanism 20 has a built-in diaphragm 23 with a rod 22 attached thereto. A spring 25 is provided to bias the intake manifold 1 in the protruding direction, and the intake negative pressure in the intake manifold 1 is transferred to the negative pressure passage 2.
6, when the intake negative pressure is larger toward the vacuum side than a certain value closer to the atmosphere (for example, -70 to -100 mmHg), the rod 22 is retracted, and when it is lower than the above-mentioned certain value toward the atmosphere, the rod 22 is moved back. The rod 22 of the diaphragm mechanism 20 is inserted into a long groove hole 28 formed in a connecting piece 27 fixed to the valve shaft 10 of the second throttle valve 11 by retreating the rod 22. The second throttle valve 11 opens and the rod 22 protrudes to close the second throttle valve 11.
この構成において切換操作用ノブ１６を矢印Ｂ
方向に引いた状態では、第２絞り弁１１は全開と
なり、且つこの全開位置が保持されるので、気化
器１０のスロツトル弁９を大きく開くことによつ
て吸気負圧がダイヤフラム機構２０の設定値より
大気圧側に小さくなつても、第２絞り弁１１は閉
じることはない。切換操作用ノブ１６を押込んだ
状態にすると、手動による第２絞り弁１１の強制
的な開保持は解除されることになる。この状態
で、気化器１０のスロツトル弁９の開度が小さ
く、吸気負圧がダイヤフラム機構２０の設定値よ
りも真空側に大きいときにはこの負圧によつてロ
ツド２２がばね２５に抗して後退しているので、
第２絞り弁１１は開のまゝで、各気筒A1，A2，
A3への吸気混合気の流量を絞ることはないが、
スロツトル弁９を大きく開くことによつて吸気負
圧がダイヤフラム機構２０の設定値より大気圧側
に小さくなると、ロツド２２がばね２５にて突出
することにより、第２絞り弁１１がばね１３にて
閉じて、各気筒A1，A2，A3への吸気混合気の流
量が絞り制御されるから、スロツトル弁９を大き
く開いた運転域でのトルクがある値を越えること
がないように抑制されると共に、燃料の消費量が
低減するのである。 In this configuration, the switching operation knob 16 is
When pulled in the direction, the second throttle valve 11 is fully open and this fully open position is maintained, so by widening the throttle valve 9 of the carburetor 10, the intake negative pressure reaches the set value of the diaphragm mechanism 20. Even if the pressure decreases to the atmospheric pressure side, the second throttle valve 11 will not close. When the switching knob 16 is pushed in, the manual forced open holding of the second throttle valve 11 is released. In this state, when the opening degree of the throttle valve 9 of the carburetor 10 is small and the intake negative pressure is larger on the vacuum side than the set value of the diaphragm mechanism 20, the rod 22 moves back against the spring 25 due to this negative pressure. Because I am doing
The second throttle valve 11 remains open, and each cylinder A 1 , A 2 ,
Although it does not throttle the intake air mixture flow to A3 ,
When the intake negative pressure becomes smaller than the set value of the diaphragm mechanism 20 to the atmospheric pressure side by opening the throttle valve 9 wide, the rod 22 is protruded by the spring 25, and the second throttle valve 11 is moved by the spring 13. When the valve is closed, the flow rate of the intake air-fuel mixture to each cylinder A 1 , A 2 , and A 3 is throttled and controlled, so that the torque is suppressed from exceeding a certain value in the operating range where the throttle valve 9 is wide open. At the same time, fuel consumption is reduced.
従つて、市街地走行時には、切換操作用ノブ１
６による第２絞り弁１１の全開保持を解除するよ
うに切換操作することにより、市街地走行時にス
ロツトル弁の大きく開く頻度が多くなることによ
る燃料の無駄な消費を防止できる一方、高速走行
及び登坂走行時には、ノブ１６によつて第２絞り
弁１１を全開保持に切換操作することにより、ス
ロツトル弁開時におけるトルクの抑制が解除にな
つて大きなトルクを得ることができるのである。 Therefore, when driving in the city, the switching operation knob 1
By performing a switching operation to release the fully open holding of the second throttle valve 11 by 6, it is possible to prevent wasteful consumption of fuel due to the increased frequency of wide opening of the throttle valve during city driving, while also preventing high-speed driving and hill-climbing. Sometimes, by operating the knob 16 to switch the second throttle valve 11 to hold it fully open, the suppression of torque when the throttle valve is open is released, and a large torque can be obtained.
なお、第２絞り弁を吸気負圧に応じて開閉する
手段としては、前記実施例のダイヤフラム機構に
限らず、電気式等他の手段を用いても良く、ま
た、第２絞り弁を吸気負圧にかゝわらず全開位置
に保持するようにした切換操作手段も、電気式等
他の手段にすることが可能であることはいうまで
もない。 Note that the means for opening and closing the second throttle valve according to the intake negative pressure is not limited to the diaphragm mechanism of the above embodiment, but other means such as an electric type may also be used. It goes without saying that the switching operation means that maintains the fully open position regardless of the pressure may also be replaced by other means such as an electric type.
以上の通り本発明は、機関の吸気通路中に設け
たスロツトル弁付き気化器の下流に、スロツトル
弁より下流の吸気負圧が大気圧に近いある値より
大気圧側に小さくなつたとき閉じるようにした第
２絞り弁を設け、該第２絞り弁には、吸気負圧に
かゝわらず当該第２絞り弁を開位置に保持し、そ
の保持を解除するようにした切換操作手段を設け
たことを特徴とするもので、スロツトル弁を大き
く開いたときの最大トルクを、切換操作手段によ
つて、一定値以下に抑制したりこの抑制を解除し
たりすることが任意にできるから、高速走行及び
登坂走行に際しての高トルクを損うことなく、高
トルクを必要としない市街地走行等での燃料消費
量を節約できる効果を有する。 As described above, the present invention provides a carburetor with a throttle valve installed in the intake passage of an engine that closes when the intake negative pressure downstream of the throttle valve becomes smaller than a certain value close to atmospheric pressure on the atmospheric pressure side. A second throttle valve is provided, and the second throttle valve is provided with a switching operation means for holding the second throttle valve in the open position and releasing the holding regardless of the intake negative pressure. It is characterized by the fact that the maximum torque when the throttle valve is wide open can be suppressed to below a certain value or released from this suppression at will by means of a switching operation means, so that high-speed operation can be achieved. It has the effect of saving fuel consumption when driving around town, etc., where high torque is not required, without sacrificing high torque when driving or climbing hills.
図面は本発明の実施例を示し、第１図は平面
図、第２図は一部切欠側面図、第３図は要部拡大
図である。
Ａ……内燃機関、A1，A2，A3……気筒、１…
…吸気マニホールド、１０……気化器、９……ス
ロツトル弁、１１……第２絞り弁、２０……ダイ
ヤフラム機構、１６……切換操作用ノブ。
The drawings show an embodiment of the present invention, and FIG. 1 is a plan view, FIG. 2 is a partially cutaway side view, and FIG. 3 is an enlarged view of a main part. A...Internal combustion engine, A1 , A2 , A3 ...Cylinder, 1...
...Intake manifold, 10...Carburizer, 9...Throttle valve, 11...Second throttle valve, 20...Diaphragm mechanism, 16...Knob for switching operation.
Claims (1)
気化器の下流に、スロツトル弁より下流の吸気負
圧が大気圧に近いある値より大気圧側に小さくな
つたとき閉じるようにした第２絞り弁を設け、該
第２絞り弁には、吸気負圧にかゝわらず当該第２
絞り弁を開位置に保持し、その保持を解除するよ
うにした切換操作手段を設けたことを特徴とする
自動車用内燃機関のトルク調節装置。1. A second throttle valve installed downstream of the carburetor with a throttle valve installed in the intake passage of the engine, which closes when the intake negative pressure downstream of the throttle valve becomes smaller than a certain value close to atmospheric pressure on the atmospheric pressure side. is provided, and the second throttle valve is provided with the second throttle valve regardless of the intake negative pressure.
A torque adjustment device for an internal combustion engine for an automobile, characterized in that a switching operation means is provided for holding a throttle valve in an open position and releasing the holding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14315882A JPS5932637A (en) | 1982-08-18 | 1982-08-18 | Torque controlling apparatus for internal combustion engine for automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14315882A JPS5932637A (en) | 1982-08-18 | 1982-08-18 | Torque controlling apparatus for internal combustion engine for automobile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5932637A JPS5932637A (en) | 1984-02-22 |
| JPS6154935B2 true JPS6154935B2 (en) | 1986-11-25 |
Family
ID=15332264
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14315882A Granted JPS5932637A (en) | 1982-08-18 | 1982-08-18 | Torque controlling apparatus for internal combustion engine for automobile |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5932637A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100361407B1 (en) * | 1994-07-07 | 2003-02-19 | 가부시끼가이샤 오노모리 뎃꾜쇼 | Textile treatment device |
-
1982
- 1982-08-18 JP JP14315882A patent/JPS5932637A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5932637A (en) | 1984-02-22 |
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