JPS61200315A - Exhaust emission control device for alcohol fuel internal-combustion engine - Google Patents

Exhaust emission control device for alcohol fuel internal-combustion engine

Info

Publication number
JPS61200315A
JPS61200315A JP60041533A JP4153385A JPS61200315A JP S61200315 A JPS61200315 A JP S61200315A JP 60041533 A JP60041533 A JP 60041533A JP 4153385 A JP4153385 A JP 4153385A JP S61200315 A JPS61200315 A JP S61200315A
Authority
JP
Japan
Prior art keywords
catalyst
combustion engine
catalyzer
internal combustion
exhaust
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
JP60041533A
Other languages
Japanese (ja)
Inventor
Shakko Jo
徐　錫洪
Hando Jo
徐　判道
Satoshi Kato
聡 加藤
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.)
NIPPON CLEAN ENGINE RES
Original Assignee
NIPPON CLEAN ENGINE RES
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 NIPPON CLEAN ENGINE RES filed Critical NIPPON CLEAN ENGINE RES
Priority to JP60041533A priority Critical patent/JPS61200315A/en
Publication of JPS61200315A publication Critical patent/JPS61200315A/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
    • F01N3/10—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
    • F01N3/2013—Periodically heating or cooling catalytic reactors, e.g. at cold starting or overheating using electric or magnetic heating means
    • 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
    • F01N3/2006—Periodically heating or cooling catalytic reactors, e.g. at cold starting or overheating
    • F01N3/204—Periodically heating or cooling catalytic reactors, e.g. at cold starting or overheating using an exhaust gas igniter, e.g. a spark or glow plug, without introducing fuel into exhaust duct
    • 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 make a catalyzer into reaction so speedily after engine starting as well as to make exhaust emission control by the catalyzer performable to the full, by installing a heating or preheating device for the catalyzer in and around an exhaust inlet part of the catalyzer, etc. CONSTITUTION:A catalyzer 2 is being held inside a catalyzer casing 1, and exhaust 4 out of an alcohol internal-combustion engine is controlled for its emission. At the above-mentioned, in an around an exhaust inlet of the catalyzer 2, there is provided with a heating or preheating device 3 through which the catalyzer 2 is heated of preheated. According to this method, simultaneously with engine starting or in advance of it, the catalyzer 2 is heated or preheated whereby the catalyzer 2 is made into reaction after engine starting, thus exhaust emission control is yet more perfectly performable.

Description

【発明の詳細な説明】 本発明はアルコール燃料内燃機関の排気浄化触媒装置、
アルコール燃料内燃機関、アルコール燃料内燃機関を動
力とする車輌および作業機械に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention provides an exhaust purification catalyst device for an alcohol-fueled internal combustion engine;
This invention relates to alcohol-fueled internal combustion engines, vehicles and working machines powered by alcohol-fueled internal combustion engines.

本特許の発明者達は既にアルコール燃料内燃機関の排気
浄化触媒等について昭和６０年１月２１日付特許出願番
号６０−００８７７３号発明の名称：アルコール燃料内
燃機関を申請中であるが、本発明は前記発明装置の性能
向上と利便性を向上することを目的とする。The inventors of this patent have already applied for Patent Application No. 60-008773 dated January 21, 1985 titled "Alcohol Fuel Internal Combustion Engine" regarding the exhaust purification catalyst etc. of alcohol fuel internal combustion engine. It is an object of the present invention to improve the performance and convenience of the invention device.

前記申請中の発明により、アルコール燃料内燃機関の排
気浄化は該触媒の反応中にはほぼ完全になされるとみて
よいが、機関始動後から触媒がその反応温度に達するま
での間は排気は十分浄化されないで排出される。しかし
１アルデハイドは微社でも毒性が強いので、アルデハイ
ドを多く含むアルコール燃料内燃機関の場合には未浄化
ｖ電気の排出は極力避けなければならない。According to the pending invention, it can be considered that exhaust gas purification of an alcohol-fueled internal combustion engine is almost completely completed during the reaction of the catalyst, but the exhaust gas is not sufficiently purified from the time the engine is started until the catalyst reaches its reaction temperature. It is discharged without being purified. However, 1-aldehyde is highly toxic even in small quantities, so in the case of an alcohol-fueled internal combustion engine containing a large amount of aldehyde, the discharge of unpurified v-electricity must be avoided as much as possible.

本発明は機関の始動と同時またはこれに先立って排気浄
化触媒を加熱または予熱することによって、機関の始動
後進やかにまたは直ちに該触媒が反応を開始し、排気の
浄化がより完全になされるようにしたことにその特徴が
ある。The present invention heats or preheats the exhaust gas purification catalyst at the same time as or prior to engine startup, so that the catalyst starts reacting immediately or immediately after engine startup, and exhaust gas is more completely purified. Its characteristic lies in the fact that it is made in this way.

このように本発明の構成はアルコール燃料内燃機関の排
気浄化触媒の排気入口近傍または該触媒の途中に加熱ま
たは予熱装置を配置すること、またこれらの加熱または
予熱装置を機関始動と同時またはその以前に作動させ、
機関の始動と同時に該触媒が速やかに反応するかまたは
直ちに反応するような温度に加熱するような制御を行な
うことよりなり、さらにこれらの触媒加熱または予熱装
置を装着したアルコール燃料内燃機関およびこれら内燃
機関を装す１＃シた車輌と作業機械に適用するものであ
る。As described above, the configuration of the present invention is to dispose a heating or preheating device near the exhaust inlet of the exhaust purification catalyst of an alcohol fuel internal combustion engine or in the middle of the catalyst, and to install the heating or preheating device at the same time as or before engine startup. operate it,
The catalyst is controlled to be heated to a temperature at which the catalyst reacts quickly or reacts immediately at the same time as the engine is started, and furthermore, alcohol fuel internal combustion engines equipped with catalyst heating or preheating devices and these internal combustion This applies to 1# engine-equipped vehicles and working machines.

次に本発明の実施例を図によって説明する。Next, embodiments of the present invention will be described with reference to the drawings.

図１は触媒ケーシング（１）の中に触媒（２）が保持さ
れており、アルコール燃料内燃機関の排気（４）は該触
媒において浄化される。該触媒の排気入口近傍に配置さ
れた加熱または予熱装置（バーナ、電気ヒータなど）（
３）によって触媒は加熱または予熱される。図２は２個
の触媒（２）の間に電気ヒータ（５）を配ｔｉｌ　した
例である。このように触媒を加熱または予熱することに
よって機関始動後の触媒反応までの時間を短縮または零
にできる。In FIG. 1, a catalyst (2) is held in a catalyst casing (1), and the exhaust gas (4) of an alcohol-fueled internal combustion engine is purified in the catalyst. A heating or preheating device (burner, electric heater, etc.) located near the exhaust inlet of the catalyst (
3) the catalyst is heated or preheated. FIG. 2 shows an example in which an electric heater (5) is placed between two catalysts (2). By heating or preheating the catalyst in this manner, the time required for the catalytic reaction after engine startup can be shortened or eliminated.

図３および図４は各々図１および図２に温度センサー（
６）を取付けた場合であって、この温度によって機関の
始動を行なうとか加熱または予熱装置のオン・オフの制
御を行なう。Figures 3 and 4 show the temperature sensor (
6) is installed, and this temperature is used to start the engine or control the on/off of the heating or preheating device.

一般にアルコール燃料内燃機関の排気に含まれるアルデ
ハイドの割合は吸気混合気の空燃比に主として支配され
るものであるが、混合燃料を使用する場合には燃料中の
アルコールの割合に比例して多くなる。本発明は機関の
種類（４サイクル、２サイクル、またはロータリ）、着
火方式（圧縮着火、火花着火）、燃料のアルコールの種
類によって制限を受けるものではないことは勿論のこと
アルコールと他の燃料との混合燃料の場合にも当然適用
されるものであり、これによってアルコール燃料内燃機
関の排気浄化は大巾に改善された。Generally, the proportion of aldehydes contained in the exhaust from alcohol-fueled internal combustion engines is mainly controlled by the air-fuel ratio of the intake mixture, but when mixed fuel is used, the proportion of aldehydes increases in proportion to the proportion of alcohol in the fuel. . It goes without saying that the present invention is not limited by the type of engine (four-stroke, two-stroke, or rotary), the ignition method (compression ignition, spark ignition), or the type of alcohol in the fuel. This naturally applies to mixed fuels as well, and this has greatly improved the exhaust purification of alcohol-fueled internal combustion engines.

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

図１．２．３、および４は本発明の実施例を示すもので
、図中において、（１）・・・排気浄化触媒ケーシング
、（２）・・・排気浄化触媒、（３）・・・加熱または
予熱装＋１．（４）・・・アルコール燃料内燃機関の排
気、（５）・・・ヒータ用枢気コード、（６）・・・温
度センサーである。 図１Figures 1.2.3 and 4 show examples of the present invention. In the figures, (1)...exhaust purification catalyst casing, (2)...exhaust purification catalyst, (3)...・Heating or preheating equipment +1. (4)...Exhaust gas of alcohol fuel internal combustion engine, (5)...Central cord for heater, (6)...Temperature sensor. Figure 1

Claims (5)

【特許請求の範囲】[Claims] （１）排気浄化触媒装置を取付けたアルコール燃料内燃
機関において触媒の排気入口部近傍、または触媒の途中
に該触媒の加熱装置または予熱装置を設けた排気浄化装
置。(1) An exhaust purification device in which an alcohol fuel internal combustion engine equipped with an exhaust purification catalyst device is provided with a heating device or a preheating device for the catalyst near the exhaust inlet of the catalyst or in the middle of the catalyst. （２）排気浄化触媒の排気入口部近傍、または触媒の途
中に該触媒の加熱装置または予熱装置を設置した排気浄
化装置を有するアルコール燃料内燃機関。(2) An alcohol fuel internal combustion engine having an exhaust purification device in which a heating device or a preheating device for the catalyst is installed near the exhaust inlet of the exhaust purification catalyst or in the middle of the catalyst. （３）前項「特許請求の範囲（２）」の内燃機関を装着
した車輌および作業機械。(3) Vehicles and working machines equipped with the internal combustion engine set forth in the preceding paragraph "Claim (2)." （４）前項「特許請求の範囲（１）、（２）、および（
３）」において、該加熱装置または予熱装置を該内燃機
関の始動と同時に作動させて該触媒の反応開始までの時
間を短縮したもの。(4) The preceding paragraph “Claims (1), (2), and (
3), in which the heating device or preheating device is operated simultaneously with the start of the internal combustion engine to shorten the time until the reaction of the catalyst starts. （５）前項「特許請求の範囲（１）、（２）、および（
３）」において該加熱装置または予熱装置を該内燃機関
の運転に先行して作動させて該触媒を加熱または予熱し
、該内燃機関の始動と同時に該触媒が速やかに反応を開
始するようにした制御方法。(5) The preceding paragraph “Claims (1), (2), and (
3), the heating device or preheating device is operated prior to operation of the internal combustion engine to heat or preheat the catalyst, so that the catalyst immediately starts a reaction at the same time as the internal combustion engine is started. Control method.
JP60041533A 1985-03-02 1985-03-02 Exhaust emission control device for alcohol fuel internal-combustion engine Pending JPS61200315A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP60041533A JPS61200315A (en) 1985-03-02 1985-03-02 Exhaust emission control device for alcohol fuel internal-combustion engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP60041533A JPS61200315A (en) 1985-03-02 1985-03-02 Exhaust emission control device for alcohol fuel internal-combustion engine

Publications (1)

Publication Number Publication Date
JPS61200315A true JPS61200315A (en) 1986-09-04

Family

ID=12611048

Family Applications (1)

Application Number Title Priority Date Filing Date
JP60041533A Pending JPS61200315A (en) 1985-03-02 1985-03-02 Exhaust emission control device for alcohol fuel internal-combustion engine

Country Status (1)

Country Link
JP (1) JPS61200315A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63128220U (en) * 1987-02-17 1988-08-22
JPH0327821U (en) * 1989-06-20 1991-03-20

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63128220U (en) * 1987-02-17 1988-08-22
JPH0327821U (en) * 1989-06-20 1991-03-20

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