JPS633380Y2 - - Google Patents
Info
- Publication number
- JPS633380Y2 JPS633380Y2 JP1981095090U JP9509081U JPS633380Y2 JP S633380 Y2 JPS633380 Y2 JP S633380Y2 JP 1981095090 U JP1981095090 U JP 1981095090U JP 9509081 U JP9509081 U JP 9509081U JP S633380 Y2 JPS633380 Y2 JP S633380Y2
- Authority
- JP
- Japan
- Prior art keywords
- exhaust
- bypass passage
- cylinder
- fuel
- combustion device
- 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
- 238000002485 combustion reaction Methods 0.000 claims description 36
- 230000004044 response Effects 0.000 claims description 8
- 239000000567 combustion gas Substances 0.000 claims description 3
- 239000000446 fuel Substances 0.000 description 24
- 239000007789 gas Substances 0.000 description 7
- 238000002347 injection Methods 0.000 description 6
- 239000007924 injection Substances 0.000 description 6
- 230000004043 responsiveness Effects 0.000 description 5
- 238000010420 art technique Methods 0.000 description 2
- 230000000994 depressogenic effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
Landscapes
- Supercharger (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
Description
【考案の詳細な説明】
本考案は排気ターボ過給機付内燃機関の応答性
改善装置に関するものであり、特に上記内燃機関
を搭載した車両の発進時における過給機の応答遅
れを改善する装置に関するものである。[Detailed description of the invention] The present invention relates to a device for improving the response of an internal combustion engine equipped with an exhaust turbo supercharger, and in particular, a device that improves the response delay of the supercharger when starting a vehicle equipped with the above-mentioned internal combustion engine. It is related to.
従来、車両用に広く使用されている排気ターボ
過給機付の内燃機関においては、極低速運転時の
ブーストが低いという欠点があり、そのため低速
トルクが小さいことと、加速時の排気ターボ過給
機の応答遅れのために、発進時の機動性が劣るの
が現状である。 Conventionally, internal combustion engines with exhaust turbo superchargers that have been widely used in vehicles have the disadvantage of low boost during extremely low-speed operation, resulting in low low-speed torque and exhaust turbo supercharging during acceleration. Currently, maneuverability during takeoff is poor due to the aircraft's response delay.
そこで、排気マニホルドの排気管収束部に燃焼
装置を設け、無負荷アイドリング時で次の負荷投
入に備えるために過給圧力を高く保つたままの状
態を維持したい時には、気筒からの排気量が所定
量以下の時に前記燃料噴射装置を作動させるよう
にした特開昭53−34010号公報の発明がある。ま
た別の先行技術として、前記燃料噴射装置を作動
させる時には、気筒に供給している燃料を遮断す
るようにした実開昭56−55732号公報の考案があ
る。 Therefore, a combustion device is installed at the exhaust pipe convergence part of the exhaust manifold, and when it is desired to maintain a high boost pressure during no-load idling in preparation for the next load application, the exhaust volume from the cylinders is reduced to the required level. There is an invention disclosed in Japanese Unexamined Patent Publication No. 53-34010 in which the fuel injection device is operated when the amount of fuel is below a fixed amount. Another prior art technique is disclosed in Japanese Utility Model Application Laid-Open No. 56-55732, in which the fuel supplied to the cylinder is cut off when the fuel injection device is operated.
これらの先行技術は、機関の低速運転時にも過
給機を高速回転させて、次の負荷投入する際の過
給機の追随性を改善してはいるが、前記燃料噴射
装置は常時排気ガス中に置かれているためにガス
中のカーボン等が付着して作動に影響するという
問題があつた。 These prior art techniques improve the ability of the supercharger to follow the next load by rotating the supercharger at high speed even when the engine is running at low speed, but the fuel injection device does not always produce exhaust gas. Because it was placed inside the gas, there was a problem that carbon, etc. in the gas could adhere to it and affect its operation.
そこで本考案は、上記排気ターボの過給機を装
備した内燃機関を搭載した車両の発進時の応答性
を改善するための燃焼装置が排気ガスによる悪影
響を改善した装置を提供することを目的としてい
る。 Therefore, the purpose of the present invention is to provide a combustion device that improves the negative effects of exhaust gas, in order to improve the responsiveness when starting a vehicle equipped with an internal combustion engine equipped with an exhaust turbo supercharger. There is.
上記目的を達成するための本考案の排気ターボ
過給機付内燃機関の応答性改善装置の構成は、少
なくとも一つの気筒の排気通路からタービン入口
に通ずるバイパス路を分岐し、該バイパス路内に
燃焼ガスを排出する燃焼装置を設け、前記排気通
路とバイパス路とを切換える切換弁と、燃料供給
を前記気筒と前記燃焼装置とに切換える切換弁と
を設け、車速が零、且つクラツチ・オフ時に前記
各切換弁を前記燃焼装置側に切換える制御装置を
設けたことを特徴とするものである。 The configuration of the response improvement device for an internal combustion engine with an exhaust turbo supercharger according to the present invention for achieving the above object includes branching a bypass passage leading from the exhaust passage of at least one cylinder to the turbine inlet, and adding a bypass passage into the bypass passage. A combustion device for discharging combustion gas is provided, a switching valve for switching between the exhaust passage and the bypass passage, and a switching valve for switching fuel supply between the cylinder and the combustion device, and when the vehicle speed is zero and the clutch is off. The present invention is characterized in that a control device is provided for switching each of the switching valves to the combustion device side.
以下図面を参照して本考案の詳細を説明する
が、第１図は本考案の実施例１における排気ター
ボ過給機１を装備した内燃機関２の概略配置平面
図であり、この内燃機関２の各気筒３ａ，３ｂ，
３ｃ，３ｄ，３ｅ，３ｆからの排気ガスＥは、排
気通路４経由過給機１のタービン１ａの入口側に
導入され、タービン１ａを駆動した後外部に排出
されるが、このタービン１ａと同軸上に設けられ
たコンプレツサー１ｂの回転により加圧された空
気Ａは、吸気管５経由上記３ａから３ｆに示す各
気筒に導入される。 The details of the present invention will be explained below with reference to the drawings. FIG. 1 is a schematic layout plan view of an internal combustion engine 2 equipped with an exhaust turbo supercharger 1 in Embodiment 1 of the present invention. Each cylinder 3a, 3b,
Exhaust gas E from 3c, 3d, 3e, and 3f is introduced into the inlet side of the turbine 1a of the supercharger 1 via the exhaust passage 4, drives the turbine 1a, and is then discharged to the outside. Air A pressurized by the rotation of the compressor 1b provided above is introduced into each cylinder shown in 3a to 3f above via the intake pipe 5.
一方、これら各気筒３ａから３ｆの図示されて
いない燃料噴射弁には、それぞれ燃料噴射ポンプ
６のプランジヤ６ａ，６ｂ，６ｃ，６ｄ，６ｅ，
６ｆより燃料Ｆが圧送されるようになつている
が、本考案ではこのうちの１気筒以上の気筒、例
えば本実施例１では気筒３ａへの燃料Ｆをカツト
可能とする燃料遮断弁７が噴射系中に設けられ、
燃料Ｆのカツト中は、その燃料噴射ポンプ６ａか
らの燃料Ｆを燃料フイードポンプ８の上流側へ戻
すようにしている。また、燃料Ｆがカツトされる
気筒３ａの図示されていない排気ポートから排気
通路４への排気通路４1を遮断可能とする排気遮
断弁９を設けると共に、その通路の排気遮断弁９
の上流側からタービン１ａの入口側に連通可能な
バイパス路１０を設け、そのバイパス路１０への
入口にバイパス路遮断弁１１を設け、上記排気遮
断弁９及びバイパス路遮断弁１１を交互に開閉す
るソレノイド１２を設けている。前記排気遮断弁
９とバイパス路遮断弁１１とによつて排気通路４
とバイパス通路との切換弁Ｐを構成する。 On the other hand, the fuel injection valves (not shown) of each of the cylinders 3a to 3f include plungers 6a, 6b, 6c, 6d, 6e, and
Although the fuel F is pressure-fed from 6f, in the present invention, the fuel cutoff valve 7 that can cut off the fuel F to one or more of these cylinders, for example, the cylinder 3a in this embodiment 1, is used for injection. installed in the system,
While the fuel F is being cut, the fuel F from the fuel injection pump 6a is returned to the upstream side of the fuel feed pump 8. Further, an exhaust cutoff valve 9 is provided that can shut off the exhaust passage 41 from the exhaust port (not shown) of the cylinder 3a where the fuel F is cut to the exhaust passage 4, and an exhaust cutoff valve 9 for that passage is provided.
A bypass passage 10 that can communicate from the upstream side of the turbine 1a to the inlet side of the turbine 1a is provided, a bypass passage cutoff valve 11 is provided at the entrance to the bypass passage 10, and the exhaust cutoff valve 9 and the bypass passage cutoff valve 11 are alternately opened and closed. A solenoid 12 is provided. The exhaust passage 4 is controlled by the exhaust cutoff valve 9 and the bypass passage cutoff valve 11.
It constitutes a switching valve P between the bypass passage and the bypass passage.
更に、このバイパス路１０内には、燃料フイー
ドポンプ８の下流側から遮断弁１３及び燃料圧送
ポンプ１６を介して燃料Ｆが供給される燃焼装置
１４及び点火用のイグナイタ１５が内蔵されてい
る。前記燃料遮断弁７と遮断弁１３とによつて、
気筒３ａと燃焼装置１４との切換弁Ｑを構成す
る。 Furthermore, a combustion device 14 to which fuel F is supplied from the downstream side of the fuel feed pump 8 via a cutoff valve 13 and a fuel pressure pump 16, and an igniter 15 for ignition are built in the bypass passage 10. By the fuel cutoff valve 7 and the cutoff valve 13,
A switching valve Q between the cylinder 3a and the combustion device 14 is configured.
本実施例１の制御装置２０は、電気回路によつ
て構成しており、第２図に示すようにこの内燃機
関２を搭載した車両のクラツチを踏んだ状態でク
ラツチスイツチ１７がオンになり、更に、車速ス
イツチ１８が車速零の時にオンになつて、この回
路に通電され、燃料遮断弁７が閉じて、気筒３ａ
には燃料Ｆがカツトされると共に、遮断弁１３が
開き、燃料圧送ポンプ１６及びイグナイタ１５が
作動するので、燃焼装置である燃焼装置１４が点
火してバイパス路１０内の燃焼装置が作動し、更
に同時に、ソレノイド１２が励磁されて排気遮断
弁９を閉じ、バイパス路遮断弁１１を開くので、
気筒３ａはエアコンプレツサーとして作動して、
その空気Ａが燃焼装置１４に供給され燃焼が行な
われ、その燃焼ガスはタービン１ａの駆動を補助
することになる。 The control device 20 of the first embodiment is configured by an electric circuit, and as shown in FIG. 2, when the clutch of a vehicle equipped with the internal combustion engine 2 is depressed, the clutch switch 17 is turned on. Further, the vehicle speed switch 18 is turned on when the vehicle speed is zero, energizing this circuit, closing the fuel cutoff valve 7, and shutting down the cylinder 3a.
When the fuel F is cut off, the shutoff valve 13 is opened and the fuel pressure pump 16 and igniter 15 are activated, so the combustion device 14, which is a combustion device, is ignited and the combustion device in the bypass passage 10 is activated. Furthermore, at the same time, the solenoid 12 is energized to close the exhaust cutoff valve 9 and open the bypass path cutoff valve 11.
Cylinder 3a operates as an air compressor,
The air A is supplied to the combustion device 14 to perform combustion, and the combustion gas assists in driving the turbine 1a.
即ち、その車両がこれから発進しようとする場
合、車速零の信号及びフアスト、またはセコンド
ギヤの切換のためクラツチを踏み込むクラツチ・
オフの信号が入ると、燃焼装置１４等の燃焼装置
が作動して、タービン１ａの駆動を助け過給機の
発進時の応答を改善するのが本考案であり、車両
の発進後クラツチがつながればクラツチスイツチ
１７がオフになり、この内燃機関２は全気筒運転
の通常の過給状態で運転される。 In other words, when the vehicle is about to start, the clutch must be depressed to signal a zero vehicle speed and shift to FAST or second gear.
When the off signal is input, the combustion device 14 or other combustion device is activated to help drive the turbine 1a and improve the response of the supercharger when starting.The clutch is engaged after the vehicle starts. The clutch switch 17 is turned off, and the internal combustion engine 2 is operated in a normal supercharging state with all cylinders operating.
なお、上記制御装置は、第２図の実施例１にお
ける制御用回路の構成に限定されるものではな
く、どのような構成の制御装置を使用しても良
い。 The above control device is not limited to the configuration of the control circuit in the first embodiment shown in FIG. 2, and any configuration of the control device may be used.
従つて、本考案の応答性改善装置では、排気タ
ーボ過給機付内燃機関において、過給機の応答性
を特に要求される時、即ち、これから発進しよう
としいるクラツチ・オフの短い期間に、燃焼装置
によりその過給機が早期に回転を上昇するので、
その応答性が充分改善され、低速トルクが上昇
し、その内燃機関を搭載した車両の発進性をよく
し、しかも、通常の内燃機関の作動時には、前記
燃焼装置に排気ガスが作用しないので、長期間安
定して該燃焼装置を作動させることができるとい
う効果が得られる。 Therefore, the responsiveness improving device of the present invention improves the responsiveness of the turbocharger in an internal combustion engine with an exhaust turbo supercharger, when the responsiveness of the supercharger is particularly required, that is, during the short clutch-off period when the engine is about to start. Because the combustion device causes the supercharger to increase its rotation early,
Its responsiveness has been sufficiently improved, low-speed torque has increased, and the starting performance of vehicles equipped with this internal combustion engine has been improved.Furthermore, when the internal combustion engine is operating normally, exhaust gas does not act on the combustion device, so it can last for a long time. The effect is that the combustion device can be stably operated for a period of time.
第１図は本考案の実施例における過給機付内燃
機関の応答性改善装置の概略配置平面図、第２図
は第１図の応答性改善装置の制御装置用回路図で
ある。
１……過給機、１ａ……タービン、１ｂ……コ
ンプレツサー、２……内燃機関、３ａ，３ｂ，３
ｃ，３ｄ，３ｅ，３ｆ……気筒、４……排気通
路、４1……排気ガス通路、７……燃料遮断弁、
１０……バイパス通路、１４……燃焼装置、１５
……イグナイタ、１７……クラツチスイツチ、１
８……車速スイツチ、２０……制御装置、Ｆ……
燃料。
FIG. 1 is a schematic layout plan view of a response improvement device for a supercharged internal combustion engine according to an embodiment of the present invention, and FIG. 2 is a circuit diagram for a control device of the response improvement device shown in FIG. 1...Supercharger, 1a...Turbine, 1b...Compressor, 2...Internal combustion engine, 3a, 3b, 3
c, 3d, 3e, 3f...Cylinder, 4...Exhaust passage, 4 1 ...Exhaust gas passage, 7...Fuel cutoff valve,
10... Bypass passage, 14... Combustion device, 15
...Igniter, 17...Clutch switch, 1
8... Vehicle speed switch, 20... Control device, F...
fuel.
Claims (1)
入口に通ずるバイパス路を分岐し、該バイパス路
内に燃焼ガスを排出する燃焼装置を設け、前記排
気通路とバイパス路とを切換える切換弁と、燃料
供給を前記気筒と前記燃焼装置とに切換える切換
弁とを設け、車速が零、且つクラツチ・オフ時に
前記各切換弁を前記燃焼装置側に切換える制御装
置を設けたことを特徴とする排気ターボ過給機付
内燃機関の応答性改善装置。 A combustion device is provided which branches a bypass passage leading to a turbine inlet from an exhaust passage of at least one cylinder and discharges combustion gas into the bypass passage, and a switching valve is provided to switch between the exhaust passage and the bypass passage, and a combustion device is provided which branches a bypass passage leading to a turbine inlet from the exhaust passage of at least one cylinder. With an exhaust turbo supercharger, comprising a switching valve that switches between a cylinder and the combustion device, and a control device that switches each switching valve to the combustion device when the vehicle speed is zero and the clutch is off. Internal combustion engine response improvement device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9509081U JPS582332U (en) | 1981-06-29 | 1981-06-29 | Responsiveness improvement device for internal combustion engine with exhaust turbocharger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9509081U JPS582332U (en) | 1981-06-29 | 1981-06-29 | Responsiveness improvement device for internal combustion engine with exhaust turbocharger |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS582332U JPS582332U (en) | 1983-01-08 |
| JPS633380Y2 true JPS633380Y2 (en) | 1988-01-27 |
Family
ID=29890007
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9509081U Granted JPS582332U (en) | 1981-06-29 | 1981-06-29 | Responsiveness improvement device for internal combustion engine with exhaust turbocharger |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS582332U (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59190205U (en) * | 1983-06-06 | 1984-12-17 | スタンレー電気株式会社 | blood pressure measuring device |
| JP5387984B2 (en) * | 2010-01-26 | 2014-01-15 | トヨタ自動車株式会社 | Internal combustion engine |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5334010A (en) * | 1976-09-13 | 1978-03-30 | Mitsubishi Heavy Ind Ltd | Exhaust gas turbo supercharged engine |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5655732U (en) * | 1979-10-05 | 1981-05-14 |
-
1981
- 1981-06-29 JP JP9509081U patent/JPS582332U/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5334010A (en) * | 1976-09-13 | 1978-03-30 | Mitsubishi Heavy Ind Ltd | Exhaust gas turbo supercharged engine |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS582332U (en) | 1983-01-08 |
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