JPS6019910A - Engine provided with turbo-supercharger - Google Patents

Engine provided with turbo-supercharger

Info

Publication number
JPS6019910A
JPS6019910A JP58128386A JP12838683A JPS6019910A JP S6019910 A JPS6019910 A JP S6019910A JP 58128386 A JP58128386 A JP 58128386A JP 12838683 A JP12838683 A JP 12838683A JP S6019910 A JPS6019910 A JP S6019910A
Authority
JP
Japan
Prior art keywords
engine
turbine
temperature
exhaust gas
passage
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
JP58128386A
Other languages
Japanese (ja)
Inventor
Haruo Okimoto
沖本　晴男
Ikuo Matsuda
松田　郁夫
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.)
Mazda Motor Corp
Original Assignee
Mazda Motor 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 Mazda Motor Corp filed Critical Mazda Motor Corp
Priority to JP58128386A priority Critical patent/JPS6019910A/en
Publication of JPS6019910A publication Critical patent/JPS6019910A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/0807—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents
    • F01N3/0871—Regulation of absorbents or adsorbents, e.g. purging
    • F01N3/0878—Bypassing absorbents or adsorbents
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/009—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having two or more separate purifying devices arranged in series
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
    • F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
    • F01N3/031—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters having means for by-passing filters, e.g. when clogged or during cold engine start
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
    • F01N3/20—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
    • F01N3/20—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
    • F01N3/2006—Periodically heating or cooling catalytic reactors, e.g. at cold starting or overheating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
    • F01N3/20—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
    • F01N3/2053—By-passing catalytic reactors, e.g. to prevent overheating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
    • F01N3/28—Construction of catalytic reactors
    • F01N3/2882—Catalytic reactors combined or associated with other devices, e.g. exhaust silencers or other exhaust purification devices
    • 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
    • F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
    • F02B37/12—Control of the pumps
    • F02B37/18—Control of the pumps by bypassing exhaust from the inlet to the outlet of turbine or to the atmosphere
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2250/00—Combinations of different methods of purification
    • F01N2250/02—Combinations of different methods of purification filtering and catalytic conversion
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2250/00—Combinations of different methods of purification
    • F01N2250/12—Combinations of different methods of purification absorption or adsorption, and catalytic conversion
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2410/00—By-passing, at least partially, exhaust from inlet to outlet of apparatus, to atmosphere or to other device
    • F01N2410/12—By-passing, at least partially, exhaust from inlet to outlet of apparatus, to atmosphere or to other device in case of absorption, adsorption or desorption of exhaust gas constituents
    • 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

PURPOSE:To aim at rapidly raising the temperature of a catalyst converter and as well at preventing the same from deteriorating, by disposing a member for absorbing and removing detrimental metal within exhaust gas, in an exhaust passage in parallel with a bypass passage. CONSTITUTION:Since a selector valve 11 takes a second position P2 when an engine is cold, exhaust gas flows through a bypass valve 10 to raise the temperature of a catalyst converter 9. Meanwhile, the selector valve 11 takes a first position P1 when the engine is in conditions other than the cold condition, and therefore, exhaust gas flows through a turbine 7 and an absorbing member 8. Accordingly, supercharging is carried out, and deterimental metal is absorbed in the abosorbing member 8 and therefore, removed.

Description

【発明の詳細な説明】 （産業上の利用分野） 本発明は、ターボ過給機付エンジンに関するものである
。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a turbocharged engine.

（従来技術） 従来、ターボ過給機付エンジンにおいて、触媒コンバー
タを設ける場合、ターボ過給機のタービンの熱容量が大
きいため、エンジン冷機時にＭ媒コンバータが所定の活
性温度に達するまでかなりの時間を要するという問題点
がある。そこで、エンジン冷機時には、ターボ過給機の
タービンをバイパスして排気ガスが触媒コンバータに至
り、それによって触媒が有効に機能する所定の活性温度
まで早期に昇温させることは知られている。(Prior art) Conventionally, when a catalytic converter is installed in a turbocharged engine, because the heat capacity of the turbocharger turbine is large, it takes a considerable amount of time for the M-mode converter to reach a predetermined activation temperature when the engine is cold. There is a problem in that it is necessary. Therefore, it is known that when the engine is cold, the exhaust gas bypasses the turbine of the turbocharger and reaches the catalytic converter, thereby quickly raising the temperature to a predetermined activation temperature at which the catalyst functions effectively.

りの触媒表面に付着して、触媒コンバークが有効な機能
を発揮しないことから、そのような有害金属を効果的に
吸着除去できる吸着部材（デボジ。If these harmful metals adhere to the surface of the catalyst, the catalytic converter will not function effectively.

トフィルタ）を設けることが知られている。It is known to provide a filter.

しかしながら、このような吸着部材は、熱容量が大きい
ため、前述したターボ過給機料エンジンに設ける場合に
は、取付位置が問題となる。However, since such an adsorption member has a large heat capacity, when it is provided in the above-mentioned turbocharged engine, the mounting position becomes a problem.

因に、先行技術としては、ターボ過給機料エンジンにお
いて、ターボ過給機のタービンの上流と下流とを連通ず
るバイパス通路と、同バイパス通路に設けられたバイパ
ス弁と、吸気圧力の」１昇およびエンジン冷態を検出し
てバイパス弁を開作動する作動機態を備えたものがある
（例えば、実開昭６乙−７６グ一？！？号参照）。Incidentally, as a prior art, in a turbocharged engine, there is a bypass passage that communicates the upstream and downstream of the turbine of the turbocharger, a bypass valve provided in the bypass passage, and a valve that controls the intake pressure. There are some that are equipped with an operating mode that opens the bypass valve by detecting engine rise and engine cooling condition (see, for example, Utility Model Publication No. 6-76 Gu-1?!?).

（発明の目的） 本発明はかかる点に鑑みてなされたもので、触媒コンバ
ータの早期昇温を図ることができ、しかも触媒コンバー
タの劣化を防止することができるターボ過給機付エンジ
ンを提供することを目的とする。(Object of the Invention) The present invention has been made in view of the above points, and an object of the present invention is to provide an engine with a turbo supercharger that can quickly raise the temperature of a catalytic converter and can prevent deterioration of the catalytic converter. The purpose is to

（発明の構成） 本発明は、排気通路にターボ過給機のタービンと触媒コ
ンバータとが順に介設され、該タービンの上流と下流と
を接続するバイパス通路が設けられ、エンジン冷機時に
前記タービンをバイパスさせるようにしたエンジンの改
良に係るものである。(Structure of the Invention) According to the present invention, a turbine of a turbocharger and a catalytic converter are sequentially installed in an exhaust passage, a bypass passage is provided to connect upstream and downstream of the turbine, and the turbine is connected when the engine is cold. This relates to an improvement of an engine that has a bypass.

本発明は、上述した目的を達成するために、上記バイパ
ス通路と並列関係にある前記排気通路に、排気ガス中の
有害金属を吸着除去する吸着部材を配設したことを特徴
とするもので、エンジン冷機時に吸着部材による影響を
受けることなく、触媒コンバータを所定の活性温度まで
早期に昇温することができるものである。In order to achieve the above-mentioned object, the present invention is characterized in that an adsorption member for adsorbing and removing harmful metals in exhaust gas is disposed in the exhaust passage in parallel with the bypass passage, It is possible to quickly raise the temperature of the catalytic converter to a predetermined activation temperature without being affected by the adsorption member when the engine is cold.

（実施例） 第１図に示すエンジン１において、２はターボ過給機で
、燃焼室乙に通ずる吸気通路４にコンプレッサ５が、排
気通路６に前記コンプレッサ５に直結したタービン７が
それぞれ配設されている。(Example) In the engine 1 shown in FIG. 1, 2 is a turbo supercharger, a compressor 5 is disposed in the intake passage 4 leading to the combustion chamber B, and a turbine 7 directly connected to the compressor 5 is disposed in the exhaust passage 6. has been done.

また、タービン７下流の排気通路乙には、有害金属を吸
着除去する吸着部材８と、排気ガス中の未燃成分を除去
する触媒コンバータ９とが順に介設されている。Further, in the exhaust passage B downstream of the turbine 7, an adsorption member 8 that adsorbs and removes harmful metals and a catalytic converter 9 that removes unburned components from the exhaust gas are installed in this order.

１０はバイパス通路で、前記タービン７の上流と吸着部
材８の下流とを接続している。このバイパス通路１０の
下流端である排気通路６との合流部分には、切換弁１１
が配設されている。この切換弁１１は、バイパス通路１
０の連通を遮断する第１位置Ｐ１と、排気通路乙の連通
を遮断する第２位置Ｐ２とを取るもので、アクチュエー
タ１２によって切換えられる。アクチュエータ１２は、
触媒コンバータ９に設けた触媒温度センサ１ろまたはエ
ンジン１に設けた水温センサ１４よりの信号に応じてコ
ントロールユニット１５にて制御される。A bypass passage 10 connects the upstream side of the turbine 7 and the downstream side of the adsorption member 8. A switching valve 11 is provided at the downstream end of the bypass passage 10 where it joins the exhaust passage 6.
is installed. This switching valve 11 is connected to the bypass passage 1
This position is switched by the actuator 12, and has a first position P1 where communication with the exhaust passage B is cut off and a second position P2 where communication with the exhaust passage B is cut off. The actuator 12 is
It is controlled by a control unit 15 in response to a signal from a catalyst temperature sensor 1 provided in the catalytic converter 9 or a water temperature sensor 14 provided in the engine 1.

すなわち、触媒温度Ｔｃが設定温度Ｔｃ０よりも低いと
き、またはエンジン冷却水温度Ｔｗが設定温度ＴＷ。That is, when the catalyst temperature Tc is lower than the set temperature Tc0, or the engine coolant temperature Tw is the set temperature TW.

よりも低いときは切換弁１１が第１位置Ｐ１となる一方
、その他の場合は切換弁１１が第２位置Ｐ２となるよう
に制御される。When it is lower than , the switching valve 11 is controlled to be in the first position P1, while in other cases, the switching valve 11 is controlled to be in the second position P2.

また、前記タービン７の上流と下流とが、アクチュエー
タ２５にて開閉作動せしめられる開閉弁１６を有する別
のバイパス通路１７にて接続されている。アクチュエー
タ２５は、コンプレッサ５下流の吸気通路４に設けた吸
気圧センサ１８によりの信号に応じてコントロールユニ
ット１５にて制御される。すなわち、過給圧が大きくな
り吸気圧Ｐ工が設定圧Ｐ工。よりも大きくなるときには
、開閉弁１６が開かれる一方、吸気圧Ｐ工が設定圧Ｐ工
。Further, the upstream and downstream sides of the turbine 7 are connected through another bypass passage 17 having an on-off valve 16 that is opened and closed by an actuator 25 . The actuator 25 is controlled by the control unit 15 in response to a signal from an intake pressure sensor 18 provided in the intake passage 4 downstream of the compressor 5. In other words, the boost pressure increases and the intake pressure P changes to the set pressure P. When the pressure becomes larger than , the on-off valve 16 is opened, and the intake pressure P reaches the set pressure P.

よりも小さくなるときには、開閉弁１６は閉じられる。When the value becomes smaller than , the on-off valve 16 is closed.

１９はコンプレッサ５上流の吸気道ｄ４に設けられた絞
り弁、２０．２１は吸気弁２２および排気弁２３にて開
閉される吸気ポートおよび排気弁、２４はピストンであ
る。19 is a throttle valve provided in the intake path d4 upstream of the compressor 5; 20 and 21 are intake ports and exhaust valves that are opened and closed by the intake valve 22 and the exhaust valve 23; and 24 is a piston.

上記のように構成すれば、触媒温度センサ１６により検
出された触媒温度ＴＣが設定温度Ｔｃｏよりも低いか、
あるいは水温センサ１４により検出されたエンジン冷却
水温度Ｔｗが設定温度”Ｗｏよりも低いエンジン冷機時
には、コントロールユニ、ト１５によってアクチュエー
タ１２が作動せしめられ、切換弁１１が第２位置Ｐ２と
なるので、排気ガスはバイパス通路１０を通じて流れ、
触媒コンバータ９を昇温することになる。すなわち、ｊ
ｕｌ気カスが、熱容量の大きいタービン７および吸着部
月８を経ることなく、触媒コンバータ９に至るので、該
触媒コンバータ９を、所定の活性１１情度まで早期に昇
温することができる。With the above configuration, whether the catalyst temperature TC detected by the catalyst temperature sensor 16 is lower than the set temperature Tco,
Alternatively, when the engine cooling water temperature Tw detected by the water temperature sensor 14 is lower than the set temperature "Wo", the actuator 12 is operated by the control unit 15, and the switching valve 11 is set to the second position P2. The exhaust gas flows through the bypass passage 10,
This will raise the temperature of the catalytic converter 9. That is, j
Since the sludge reaches the catalytic converter 9 without passing through the turbine 7 and the adsorption part 8, which have a large heat capacity, the temperature of the catalytic converter 9 can be quickly raised to a predetermined activity level.

一方、エンジン冷機時以外には、切換弁１１が第１位置
Ｐ１となるので、排気ガスは、タービン７および吸着部
材８を経て流れる。したがって、過給が行われるととも
に、有害金属が吸ｊテ１部利８にて吸着除去される。こ
の有害金属の吸着部材８による吸着除去は、エンジン冷
機時を除く大半の運転領域（過給圧を下げるためにバイ
パス通路１７を開く場合も含む）で行なわれることにな
るので、触媒コンバータ９の劣化を効果的に防止するこ
とができる。On the other hand, since the switching valve 11 is in the first position P1 when the engine is not cold, the exhaust gas flows through the turbine 7 and the adsorption member 8. Therefore, supercharging is carried out, and harmful metals are adsorbed and removed at the intake port 8. This adsorption removal of harmful metals by the adsorption member 8 is carried out in most operating ranges except when the engine is cold (including when the bypass passage 17 is opened to lower the supercharging pressure). Deterioration can be effectively prevented.

上記実施例では、過給圧が高くなりすぎるのを防止する
ために、バイパス通路１６を設けているが、第２図に示
すようにバイパス通路１６を省略して、もう７つのバイ
パス通路１０にその機能を持たせるようにしてもよい。In the above embodiment, the bypass passage 16 is provided in order to prevent the supercharging pressure from becoming too high, but as shown in FIG. It may be provided with that function.

（発明の効果） 本発明は上記のように構成したから、エンジン冷機時に
触媒コンバータの早期昇温を図ることができ、それによ
ってエンジン冷機時にも触媒機能を有効に発揮できると
ともに、大半の運転領域で排気ガスが吸着部材を流れる
ので、触媒コンバータの劣化も防止できる。(Effects of the Invention) Since the present invention is configured as described above, it is possible to raise the temperature of the catalytic converter early when the engine is cold, thereby effectively exerting the catalytic function even when the engine is cold, and in most driving ranges. Since the exhaust gas flows through the adsorption member, deterioration of the catalytic converter can also be prevented.

【図面の簡単な説明】[Brief explanation of the drawing]

図面は本発明の実施態様を例示するもので、第７図はタ
ーボ過給機付エンジンの全体構成図、第２図は変形例の
全体構成図である。The drawings illustrate embodiments of the present invention, and FIG. 7 is an overall configuration diagram of a turbocharged engine, and FIG. 2 is an overall configuration diagram of a modified example.

Claims (1)

【特許請求の範囲】[Claims] （１）排気通路にターボ過給機のタービンと触媒コンバ
ータとが順に介設され、該タービンの上流と下流とを接
続するバイパス通路が設けられ、エンジン冷機時に前記
タービンをバイパスさせるようにしたエンジンにおいて
、前記バイパス通路と並列関係にある前記排気通路に、
排気ガス中の有害金属を吸着除去する吸着部材を配設し
たことを特徴とするターボ過給機付エンジン。(1) An engine in which a turbine of a turbocharger and a catalytic converter are sequentially installed in an exhaust passage, a bypass passage is provided to connect upstream and downstream of the turbine, and the turbine is bypassed when the engine is cold. In the exhaust passage in parallel with the bypass passage,
A turbocharged engine characterized by being equipped with an adsorption member that adsorbs and removes harmful metals from exhaust gas.
JP58128386A 1983-07-13 1983-07-13 Engine provided with turbo-supercharger Pending JPS6019910A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP58128386A JPS6019910A (en) 1983-07-13 1983-07-13 Engine provided with turbo-supercharger

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58128386A JPS6019910A (en) 1983-07-13 1983-07-13 Engine provided with turbo-supercharger

Publications (1)

Publication Number Publication Date
JPS6019910A true JPS6019910A (en) 1985-02-01

Family

ID=14983528

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58128386A Pending JPS6019910A (en) 1983-07-13 1983-07-13 Engine provided with turbo-supercharger

Country Status (1)

Country Link
JP (1) JPS6019910A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5297532A (en) * 1991-10-16 1994-03-29 Honda Giken Kogyo Kabushiki Kaisha Supercharging pressure control system for supercharged internal combustion engines
EP0861973A1 (en) * 1997-02-26 1998-09-02 Toyota Jidosha Kabushiki Kaisha Exhaust gas purifying device for engine
FR2861132A1 (en) * 2003-10-17 2005-04-22 Renault Sa Thermal engine with turbocompressor and means of reducing start-up time for exhaust catalyst from cold starting includes pipe which can bypass turbocompressor turbine
US20110131978A1 (en) * 2008-12-26 2011-06-09 Toyota Jidosha Kabushiki Kaisha Exhaust gas purifying apparatus for supercharger-equipped internal combustion engine
US20110271673A1 (en) * 2010-05-04 2011-11-10 Alpraaz Ab Exhaust system for a combustion engine
US20180058287A1 (en) * 2016-08-30 2018-03-01 Ford Global Technologies, Llc Engine exhaust system control

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5297532A (en) * 1991-10-16 1994-03-29 Honda Giken Kogyo Kabushiki Kaisha Supercharging pressure control system for supercharged internal combustion engines
EP0861973A1 (en) * 1997-02-26 1998-09-02 Toyota Jidosha Kabushiki Kaisha Exhaust gas purifying device for engine
US5934072A (en) * 1997-02-26 1999-08-10 Toyota Jidosha Kabushiki Kaisha Exhaust gas purifying device for engine
FR2861132A1 (en) * 2003-10-17 2005-04-22 Renault Sa Thermal engine with turbocompressor and means of reducing start-up time for exhaust catalyst from cold starting includes pipe which can bypass turbocompressor turbine
US20110131978A1 (en) * 2008-12-26 2011-06-09 Toyota Jidosha Kabushiki Kaisha Exhaust gas purifying apparatus for supercharger-equipped internal combustion engine
US8516814B2 (en) * 2008-12-26 2013-08-27 Toyota Jidosha Kabushiki Kaisha Exhaust gas purifying apparatus for a turbocharged internal combustion engine
US20110271673A1 (en) * 2010-05-04 2011-11-10 Alpraaz Ab Exhaust system for a combustion engine
US20180058287A1 (en) * 2016-08-30 2018-03-01 Ford Global Technologies, Llc Engine exhaust system control
US10287941B2 (en) * 2016-08-30 2019-05-14 Ford Global Technologies, Llc Engine exhaust system control

Similar Documents

Publication Publication Date Title
KR100511699B1 (en) Exhaust emission control device
EP1420159B1 (en) EGR system for internal combustion engine provided with a turbo-charger
EP1270885A3 (en) Device for purifying exhaust gas of diesel engines
JP4103720B2 (en) ENGINE EXHAUST PURIFYING APPARATUS AND PARTICLE DEPOSITION STATE JUDGMENT METHOD
RU2390642C2 (en) Device and method to purify ice exhaust gases
JP3090536B2 (en) Exhaust system for turbocharged engine
WO2006064835A1 (en) Exhaust gas purification device and control device for diesel engine
JPH07259654A (en) Exhaust gas circulating device of diesel engine
JPS6019910A (en) Engine provided with turbo-supercharger
JP3923276B2 (en) Engine exhaust treatment method and apparatus
JPH1068315A (en) Emission control device for internal combustion engine
JPS6179814A (en) Fine particle exhaust disposing device for internal combustion engine
JPH11125148A (en) Exhaust gas recirculation device
JPH1047112A (en) Exhaust emission control device for internal combustion engine
JPH0417710A (en) Purifying device of engine exhaust gas
JP2008151006A (en) Control device of turbocharger
JP3246151B2 (en) Diesel engine exhaust purification system
JPS63309725A (en) Exhaust gas treatment device for internal combustion engine with exhaust turbosupercharger
JPH0544448A (en) Exhaust gas purifying device for diesel engine
JPH034735Y2 (en)
JP2004092413A (en) Exhaust aftertreatment system
JP7472846B2 (en) Engine System
JPS6233939Y2 (en)
JPS62255511A (en) Particulate removing device for turbocharged engine
JPH1162722A (en) Cool egr device for turbo supercharge type engine