JPH0571425A - Exhaust gas recirculaiton device for diesel engine - Google Patents
Exhaust gas recirculaiton device for diesel engineInfo
- Publication number
- JPH0571425A JPH0571425A JP3259856A JP25985691A JPH0571425A JP H0571425 A JPH0571425 A JP H0571425A JP 3259856 A JP3259856 A JP 3259856A JP 25985691 A JP25985691 A JP 25985691A JP H0571425 A JPH0571425 A JP H0571425A
- Authority
- JP
- Japan
- Prior art keywords
- gas
- diesel engine
- engine
- exhaust
- exhaust gas
- 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.)
- Granted
Links
- 238000002485 combustion reaction Methods 0.000 claims abstract description 8
- 230000003134 recirculating effect Effects 0.000 claims abstract 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 18
- 238000010521 absorption reaction Methods 0.000 claims description 16
- 239000000498 cooling water Substances 0.000 claims description 11
- 238000010438 heat treatment Methods 0.000 claims description 3
- 239000008236 heating water Substances 0.000 claims 1
- 239000007789 gas Substances 0.000 abstract description 100
- 239000004071 soot Substances 0.000 abstract description 8
- 239000000567 combustion gas Substances 0.000 abstract description 6
- 239000003054 catalyst Substances 0.000 abstract description 5
- 230000003647 oxidation Effects 0.000 abstract description 5
- 238000007254 oxidation reaction Methods 0.000 abstract description 5
- 238000011144 upstream manufacturing Methods 0.000 abstract description 3
- 230000008878 coupling Effects 0.000 abstract 1
- 238000010168 coupling process Methods 0.000 abstract 1
- 238000005859 coupling reaction Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 238000001816 cooling Methods 0.000 description 7
- 238000010992 reflux Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 239000002826 coolant Substances 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 229930195733 hydrocarbon Natural products 0.000 description 3
- 150000002430 hydrocarbons Chemical class 0.000 description 3
- 238000007599 discharging Methods 0.000 description 2
- 239000002737 fuel gas Substances 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- 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
- F02B3/00—Engines characterised by air compression and subsequent fuel addition
- F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition
-
- 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
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
-
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/27—Relating to heating, ventilation or air conditioning [HVAC] technologies
- Y02A30/274—Relating to heating, ventilation or air conditioning [HVAC] technologies using waste energy, e.g. from internal combustion engine
Landscapes
- Exhaust-Gas Circulating Devices (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は、ディーゼル機関の排
気ガス還流装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a diesel engine exhaust gas recirculation system.
【０００２】[0002]
【従来の技術】ディーゼル機関において、排気ガスを吸
気側に還流させることによって、ＮＯｘを低減できるこ
とが知られている。2. Description of the Related Art In a diesel engine, it is known that NOx can be reduced by returning exhaust gas to the intake side.
【０００３】すなわち、その機関の排気通路の排気ガス
をＥＧＲガス還流回路によって吸気側に還流させ、これ
によって排ガスの一部を吸気と混合させて、機関へ供給
させることで、大気中に排出されるＮＯｘを低減するも
のである。That is, the exhaust gas in the exhaust passage of the engine is recirculated to the intake side by the EGR gas recirculation circuit, whereby a part of the exhaust gas is mixed with the intake air and supplied to the engine to be discharged into the atmosphere. The amount of NOx generated is reduced.
【０００４】このようなＥＧＲ装置において、ＥＧＲガ
ス還流回路に流入した排気ガス中には煤塵や未燃炭化水
素など、機関に対して悪影響を与える物質を含んでお
り、従来においてはこれらを取り除くため、ＥＧＲガス
還流回路中にスートトラップや酸化触媒層を設けている
（例えば実開平１−１６６２５４公報参照）。In such an EGR device, the exhaust gas flowing into the EGR gas recirculation circuit contains substances that adversely affect the engine, such as soot dust and unburned hydrocarbons. A soot trap and an oxidation catalyst layer are provided in the EGR gas recirculation circuit (for example, see Japanese Utility Model Laid-Open No. 1-166254).
【０００５】更に、高温の排ガスを吸気側に混合させる
ため、吸気温度が上昇して機関の効率が低下するのを防
止する必要から、ＥＧＲガス還流回路中にクーラーを設
けている（同公報参照）。Further, since the high temperature exhaust gas is mixed into the intake side, it is necessary to prevent the intake temperature from rising and the efficiency of the engine from decreasing, so that a cooler is provided in the EGR gas recirculation circuit (see the same publication). ).
【０００６】[0006]
【発明が解決しようとする課題】従来一般に使用されて
いるＥＧＲ装置は、ディーゼル機関それ自体の排ガスを
還流させるものであり、そのため、上記のように、煤塵
を除去するスートトラップや、未燃炭化水素を除去する
酸化触媒層など、複雑な排気エミッション除去装置が必
要となる欠点があった。The EGR device generally used conventionally recirculates the exhaust gas of the diesel engine itself. Therefore, as described above, the soot trap for removing the dust and the unburned carbonization are not used. There is a drawback that a complicated exhaust emission removal device such as an oxidation catalyst layer for removing hydrogen is required.
【０００７】また、還流ガスを冷却して還流効率を確保
するために、上記のように排ガスクーラーを設けている
が、そのための冷却媒体の冷却装置が特別に必要となる
欠点もあった。Further, the exhaust gas cooler is provided as described above in order to cool the reflux gas to ensure the reflux efficiency, but there is a drawback that a cooling device for the cooling medium for that purpose is specially required.
【０００８】この発明は、このような従来の欠点を解消
して、ディーゼル機関それ自体の排気ガスでなくても不
活性ガスさえ入れてやればよいことに着目して、ＥＧＲ
ガスとして使用する排ガスの処理装置が不要で、或いは
更に、ＥＧＲガスを冷却する冷却装置の冷却媒体を冷却
する特別の装置を不要にすることを目的とする。The present invention solves the above-mentioned drawbacks of the prior art and pays attention to the fact that it is sufficient to add an inert gas instead of the exhaust gas of the diesel engine itself.
It is an object of the present invention to eliminate the need for a treatment device for exhaust gas used as a gas, or further for a special device for cooling a cooling medium of a cooling device for cooling EGR gas.
【０００９】[0009]
【課題を解決するための手段】上記の課題を解決するた
め、この発明では、ディーゼル機関と直結したガス機
関、もしくは、ガス焚き吸収式冷凍機、または、ボイラ
ーの排ガスをＥＧＲ還流ガスとして利用するＥＧＲガス
還流回路を設けるものである。更に、吸収式冷凍機によ
って得られる冷水または温水吸収冷凍機に使用するボイ
ラーの温水を、ＥＧＲガスや吸気用インタークーラーの
冷却水として利用する。In order to solve the above problems, according to the present invention, the exhaust gas of a gas engine directly connected to a diesel engine, a gas-fired absorption refrigerating machine, or a boiler is used as EGR recirculation gas. An EGR gas recirculation circuit is provided. Further, the cold water obtained by the absorption refrigerator or the hot water of the boiler used for the hot water absorption refrigerator is used as the cooling water for the EGR gas and the intake intercooler.
【００１０】[0010]
【作用】炭化水素や煤塵のほとんどない燃料ガスの排ガ
スを使用するので、スートトラップや酸化触媒等の排気
処理が不要である。Since the exhaust gas of the fuel gas containing almost no hydrocarbon or soot is used, it is not necessary to exhaust the soot trap or the oxidation catalyst.
【００１１】また、ＥＧＲガス還流回路や吸気用インタ
ークーラーの冷却水を冷却する特別の冷却装置が不要と
なる。Further, a special cooling device for cooling the cooling water for the EGR gas recirculation circuit and the intake intercooler is not required.
【００１２】[0012]
〈図１の回路の説明〉図において、１はディーゼル機
関、２は、そのディーゼル機関の吸気マニホールド、３
は、排気マニホールドである。４は、排気タービン過給
機であって、そのタービン５が排気マニホールド３と排
気管６との接続部に取り付けられ、ブロワー７が吸気マ
ニホールド２と吸気管８との接続部に取り付けられてい
る。９は、吸気管８の吸入口に取り付けたエアクリーナ
である。また、吸気マニホールド２の途中にはインタク
ーラー１０が介装されている。排気管６の途中には、そ
の排気ガスとの熱交換によって、温水器その他の装置に
使用するための熱を取り出す排気エコノマイザ１１が取
り付けられている。<Description of Circuit in FIG. 1> In the figure, 1 is a diesel engine, 2 is an intake manifold of the diesel engine, 3
Is an exhaust manifold. Reference numeral 4 denotes an exhaust turbine supercharger, a turbine 5 of which is attached to a connecting portion between the exhaust manifold 3 and the exhaust pipe 6, and a blower 7 is attached to a connecting portion between the intake manifold 2 and the intake pipe 8. .. An air cleaner 9 is attached to the intake port of the intake pipe 8. An intercooler 10 is provided in the middle of the intake manifold 2. In the middle of the exhaust pipe 6, an exhaust economizer 11 is attached which takes out heat for use in a water heater and other devices by exchanging heat with the exhaust gas.
【００１３】他方、１２は、ディーゼル機関１よりも小
容量のガス機関、１３は、そのガス機関にガスを供給す
るガス供給管、１４は、そのガス供給管１３の途中に設
けたガス遮断弁、１５は、ガス供給装置を示している。
１６は、空気供給装置であって、前記ガス供給管１３内
のガスと混合して、ガス機関１２に送るようにしてい
る。１７は、ガスの燃焼ガスを排出するガス排気管で、
その途中に、ＥＧＲガス還流回路１８を構成するＥＧＲ
ガス管１９の入口が接続されている。このＥＧＲガス管
１９の出口側が、前記過給機４のブロワー７上流の吸気
管８へ接続されて、ガス機関１２の燃焼ガスをＥＧＲガ
スとして、ディーゼル機関１の吸気側へ還流させるよう
にしている。また、ＥＧＲガス管１９の入口よりも上流
のガス排気管１７に、その燃焼ガスを、所定のＥＧＲ率
を確保できる温度にまで冷却するＥＧＲガスクーラー２
０を設けている。更に、同じく入口よりも下流の燃焼ガ
ス排気管１７中に、ＥＧＲガス管１９側への還流量を調
節する背圧制御弁２１を設けている。On the other hand, 12 is a gas engine having a smaller capacity than the diesel engine 1, 13 is a gas supply pipe for supplying gas to the gas engine, and 14 is a gas cutoff valve provided in the middle of the gas supply pipe 13. , 15 have shown the gas supply apparatus.
Reference numeral 16 denotes an air supply device, which is mixed with the gas in the gas supply pipe 13 and sent to the gas engine 12. Reference numeral 17 is a gas exhaust pipe for discharging combustion gas of gas,
In the middle of that, the EGR that constitutes the EGR gas recirculation circuit 18
The inlet of the gas pipe 19 is connected. The outlet side of the EGR gas pipe 19 is connected to the intake pipe 8 upstream of the blower 7 of the supercharger 4 so that the combustion gas of the gas engine 12 is returned to the intake side of the diesel engine 1 as EGR gas. There is. In addition, the EGR gas cooler 2 that cools the combustion gas in the gas exhaust pipe 17 upstream of the inlet of the EGR gas pipe 19 to a temperature at which a predetermined EGR rate can be secured.
0 is set. Further, a back pressure control valve 21 for adjusting the amount of recirculation to the EGR gas pipe 19 side is also provided in the combustion gas exhaust pipe 17 downstream of the inlet.
【００１４】更に、ディーゼル機関１の出力軸２３の一
方の端部とガス機関１２の出力軸２４が、継手２５を介
して直結されて、相互に同期して回転することとされ、
他方、ディーゼル機関１の他方の端部が、発電機などの
負荷装置２６に連結されて、これらディーゼル機関１と
ガス機関１２の双方の出力を、負荷装置２６の駆動原動
機として利用するようにしている。Further, one end of the output shaft 23 of the diesel engine 1 and the output shaft 24 of the gas engine 12 are directly connected via a joint 25 and rotate in synchronization with each other.
On the other hand, the other end of the diesel engine 1 is connected to a load device 26 such as a generator so that the outputs of both the diesel engine 1 and the gas engine 12 are used as drive prime movers for the load device 26. There is.
【００１５】〈図２の説明〉図２は、ガス吸収式冷凍機
２８の燃焼排ガスをＥＧＲガスとして使用するようにし
た実施例を示している。ガス吸収式冷凍機２８は、冷媒
回路２９中の熱媒体の圧縮と膨張の繰返しによって冷却
を行うが、その膨張のための加熱装置にガス焚き式のバ
ーナー３０を用いている。そこで、バーナー３０によっ
て燃焼したガスの燃焼排ガスをＥＧＲガスとして利用す
るものである。３１が、その排気管であり、この排気管
３１を直接ディーゼル機関１の吸気管８に接続して、そ
の吸気側に還流させるようにしている。３２は、バーナ
ー３０へ燃料ガスを供給するガス供給管である。また、
ガス排気管３１の途中には、切り換え弁３２を介して、
還流ガスの一部または全部をディーゼル機関１の排気管
６側に合流して排出させるバイパス回路３３を接続して
いる。合流したガス吸収式冷凍機２８の燃焼排ガスは、
ディーゼル機関１の排気ガスとともに下流に設けた排気
エコノマイザ１１の熱源として利用される。<Description of FIG. 2> FIG. 2 shows an embodiment in which the combustion exhaust gas of the gas absorption refrigerator 28 is used as EGR gas. The gas absorption refrigerator 28 performs cooling by repeating compression and expansion of the heat medium in the refrigerant circuit 29, and uses a gas-fired burner 30 as a heating device for the expansion. Therefore, the combustion exhaust gas of the gas burned by the burner 30 is used as the EGR gas. Reference numeral 31 is the exhaust pipe, and the exhaust pipe 31 is directly connected to the intake pipe 8 of the diesel engine 1 so as to be recirculated to the intake side. Reference numeral 32 is a gas supply pipe for supplying the fuel gas to the burner 30. Also,
In the middle of the gas exhaust pipe 31, via a switching valve 32,
A bypass circuit 33 is connected to join part or all of the recirculation gas to the exhaust pipe 6 side of the diesel engine 1 and discharge it. The combustion exhaust gas of the combined gas absorption refrigerator 28 is
It is used as a heat source for the exhaust economizer 11 provided downstream together with the exhaust gas of the diesel engine 1.
【００１６】３４は、ガス吸収式冷凍機２８の排気管３
１中に設けたＥＧＲガスクーラーであり、これによっ
て、還流ガスを冷却して十分なガス還流率を得るように
している。そして、このＥＧＲガスクーラー３４と前記
ディーゼル機関１のインタークーラー１０を循環するよ
うにして、冷却媒体としての冷却水回路３５が構成さ
れ、その回路３５を前記ガス吸収式冷凍機２８に通すこ
とで、前記熱媒回路２９との熱交換によりその冷却水を
冷却するようにしている。Reference numeral 34 denotes the exhaust pipe 3 of the gas absorption refrigerator 28.
1 is an EGR gas cooler provided to cool the reflux gas to obtain a sufficient gas reflux rate. Then, by circulating the EGR gas cooler 34 and the intercooler 10 of the diesel engine 1, a cooling water circuit 35 as a cooling medium is configured, and by passing the circuit 35 through the gas absorption refrigerator 28, The cooling water is cooled by exchanging heat with the heat medium circuit 29.
【００１７】〈図３の回路の説明〉図３は、同じくガス
焚き式のボイラー３７の排ガスを利用した実施例の回路
図である。ボイラー３７の温水回路３８を加熱するバー
ナー３９の排ガスを排出する排気管４０を、前記と同様
に、過給機４のブロワー７手前の吸気管８に接続して、
その排ガスをＥＧＲガスとして利用するようにしてい
る。そして、ＥＧＲガスクーラー３４とインタークーラ
ー１０を循環する冷却水回路３５を、そのボイラー３７
の温水回路３８と連結し、その温水回路３８を、更に、
温水吸収式冷凍機４１へ循環させて、温水の熱を冷凍機
４１の熱源として使用するとともに、そのときの熱交換
によって冷却された温水を、上気クーラー１０、３４の
冷却に使用するものである。その他の構成は、図２と同
じである。<Description of Circuit in FIG. 3> FIG. 3 is a circuit diagram of an embodiment using the exhaust gas of the gas-fired boiler 37. The exhaust pipe 40 for discharging the exhaust gas from the burner 39 for heating the hot water circuit 38 of the boiler 37 is connected to the intake pipe 8 before the blower 7 of the supercharger 4 in the same manner as described above.
The exhaust gas is used as EGR gas. The cooling water circuit 35 circulating through the EGR gas cooler 34 and the intercooler 10 is connected to the boiler 37.
The hot water circuit 38 is connected to the hot water circuit 38 of
The heat of the hot water is circulated to the hot water absorption refrigerator 41 to be used as the heat source of the refrigerator 41, and the hot water cooled by the heat exchange at that time is used to cool the upper air coolers 10 and 34. is there. Other configurations are the same as those in FIG.
【００１８】[0018]
【発明の効果】この発明によれば、炭化水素や煤塵のほ
とんどないガス機関やガス焚き式装置の燃焼ガスの排ガ
スを使用するので、スートトラップや酸化触媒等の排気
処理が不要で、ＥＧＲガス還流回路の回路構成が簡単と
なり、低コストに実施できる。According to the present invention, since the exhaust gas of the combustion gas of the gas engine or the gas-fired device, which is substantially free from hydrocarbons and soot and dust, is used, the exhaust treatment of the soot trap, the oxidation catalyst, etc. is unnecessary, and the EGR gas is eliminated. The circuit configuration of the reflux circuit is simplified and can be implemented at low cost.
【００１９】その際、この出願第１の発明では、ガス機
関はディーゼル機関とともに負荷装置の駆動原動機とし
て使用するので、エネルギーの無駄を生ずることなく有
効に利用でき、しかも、ガス機関の始動及び速度制御は
ディーゼル機関と直結することで、そのディーゼル機関
側から起動又は制御できるから、ガス機関側には本来必
要なそれらの装置が不要で、低コストに実施できる。In this case, in the first invention of this application, since the gas engine is used together with the diesel engine as a driving prime mover for the load device, energy can be effectively utilized without waste, and the starting and speed of the gas engine can be improved. Since the control can be started or controlled from the diesel engine side by directly connecting to the diesel engine, those devices that are originally required on the gas engine side are unnecessary and can be implemented at low cost.
【００２０】また、この出願の第２、第３の発明では、
ＥＧＲガス還流回路や吸気回路のクーラーの冷却水とし
て、ガス焚き式装置によって得られる冷凍機の温水を利
用するので、温水の熱を放出する特別の熱交換装置が不
要となる。In the second and third inventions of this application,
Since the hot water of the refrigerator obtained by the gas-fired device is used as the cooling water for the cooler of the EGR gas recirculation circuit and the intake circuit, a special heat exchange device for releasing the heat of the hot water is unnecessary.
【図１】この発明の実施例を示すＥＧＲガス還流回路を
備えた機関の回路図である。FIG. 1 is a circuit diagram of an engine including an EGR gas recirculation circuit showing an embodiment of the present invention.
【図２】同じくこの発明の別の実施例を示すＥＧＲガス
還流回路を備えた機関の回路図である。FIG. 2 is a circuit diagram of an engine including an EGR gas recirculation circuit according to another embodiment of the present invention.
【図３】この発明の更に別の実施例を示すＥＧＲガス還
流回路を備えた機関の回路図である。FIG. 3 is a circuit diagram of an engine including an EGR gas recirculation circuit showing still another embodiment of the present invention.
１ ディーゼル機関 ８ 吸気管 １０ インタークーラー １２ ガス機関 １８ ＥＧＲガス還流回路 ２０ ＥＧＲガスクーラー ２８ ガス吸収冷凍機 ３５ 冷却水回路 ３７ ボイラー ４１ 温水吸収冷凍機 1 Diesel engine 8 Intake pipe 10 Intercooler 12 Gas engine 18 EGR gas recirculation circuit 20 EGR gas cooler 28 Gas absorption refrigerator 35 Cooling water circuit 37 Boiler 41 Hot water absorption refrigerator
フロントページの続き (51)Int.Cl.5 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｆ２２Ｄ 1/02 7715−3Ｌ Ｆ２５Ｂ 27/02 Ｚ 9252−3Ｌ Continuation of the front page (51) Int.Cl. 5 Identification number Office reference number FI technical display location F22D 1/02 7715-3L F25B 27/02 Z 9252-3L
Claims (3)
して、両機関を負荷装置の駆動原動機とするとともに、
前記ガス機関の排ガスをディーゼル機関の吸気側に還流
させるＥＧＲガス還流回路を設けたことを特徴とするデ
ィーゼル機関の排気ガス還流装置。1. A diesel engine and a gas engine are directly connected to each other so that both engines serve as drive prime movers for a load device.
An exhaust gas recirculation device for a diesel engine, comprising an EGR gas recirculation circuit for recirculating the exhaust gas of the gas engine to the intake side of the diesel engine.
収冷凍機を備え、その吸収冷凍機の燃焼排ガスをディー
ゼル機関の吸気側に還流させるＥＧＲガス還流回路と、
その吸収冷凍機によって得られる冷水を吸気通路のイン
タークーラー及び又は前記排ガス用クーラーの冷却水と
して利用する冷却水回路とを設けたことを特徴とするデ
ィーゼル機関の排気ガス還流装置。2. An EGR gas recirculation circuit comprising a gas absorption refrigerator for heating a heat medium by combustion of gas, and recirculating combustion exhaust gas of the absorption refrigerator to the intake side of a diesel engine,
An exhaust gas recirculation device for a diesel engine, comprising: a cooling water circuit that uses cold water obtained by the absorption refrigerator as an intercooler for an intake passage and / or as cooling water for the exhaust gas cooler.
とそのボイラーの温水を利用する温水吸収冷凍機とを備
え、前記ボイラーの燃焼排ガスををディーゼル機関の吸
気側に還流させるＥＧＲガス還流回路と、温水吸収冷凍
機で冷却された前記温水を吸気インタークーラー及び又
は前記排ガス用クーラーの冷却水として利用する冷却水
回路とを設けたことを特徴とするディーゼル機関の排気
ガス還流装置。3. An EGR gas recirculation circuit that comprises a boiler for heating water by gas combustion and a hot water absorption refrigerator using hot water of the boiler, and recirculates combustion exhaust gas of the boiler to the intake side of a diesel engine. An exhaust gas recirculation device for a diesel engine, comprising: a cooling water circuit that uses the hot water cooled by the hot water absorption refrigerator as a cooling water for an intake air intercooler and / or the exhaust gas cooler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3259856A JP3005776B2 (en) | 1991-09-10 | 1991-09-10 | Exhaust gas recirculation system for diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3259856A JP3005776B2 (en) | 1991-09-10 | 1991-09-10 | Exhaust gas recirculation system for diesel engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0571425A true JPH0571425A (en) | 1993-03-23 |
| JP3005776B2 JP3005776B2 (en) | 2000-02-07 |
Family
ID=17339927
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3259856A Expired - Lifetime JP3005776B2 (en) | 1991-09-10 | 1991-09-10 | Exhaust gas recirculation system for diesel engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3005776B2 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07229450A (en) * | 1994-02-21 | 1995-08-29 | Komatsu Ltd | Exhaust gas reflux device of diesel engine for congeneration and control method thereof |
| WO2000026527A1 (en) * | 1998-10-31 | 2000-05-11 | Kanesaka Gijyutsu Kenkyusho Co., Ltd. | Exhaust emission recirculating system for supercharged diesel engine |
| EP1186767A3 (en) * | 2000-09-11 | 2003-04-23 | Toyota Jidosha Kabushiki Kaisha | Exhaust gas recirculation system for internal combustion engine |
| JP2012172647A (en) * | 2011-02-24 | 2012-09-10 | Mitsui Eng & Shipbuild Co Ltd | Exhaust heat recovery system of engine including turbocharger |
| JP2013238236A (en) * | 2012-05-15 | 2013-11-28 | Man Diesel & Turbo Se | Drive system and method for operating the same |
| JP2019167917A (en) * | 2018-03-26 | 2019-10-03 | 国立研究開発法人 海上・港湾・航空技術研究所 | Unburned fuel and nitrogen oxide reduction combustion method and combustion system using the method |
-
1991
- 1991-09-10 JP JP3259856A patent/JP3005776B2/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07229450A (en) * | 1994-02-21 | 1995-08-29 | Komatsu Ltd | Exhaust gas reflux device of diesel engine for congeneration and control method thereof |
| WO2000026527A1 (en) * | 1998-10-31 | 2000-05-11 | Kanesaka Gijyutsu Kenkyusho Co., Ltd. | Exhaust emission recirculating system for supercharged diesel engine |
| EP1186767A3 (en) * | 2000-09-11 | 2003-04-23 | Toyota Jidosha Kabushiki Kaisha | Exhaust gas recirculation system for internal combustion engine |
| JP2012172647A (en) * | 2011-02-24 | 2012-09-10 | Mitsui Eng & Shipbuild Co Ltd | Exhaust heat recovery system of engine including turbocharger |
| JP2013238236A (en) * | 2012-05-15 | 2013-11-28 | Man Diesel & Turbo Se | Drive system and method for operating the same |
| CN103422982A (en) * | 2012-05-15 | 2013-12-04 | 曼柴油机和涡轮机欧洲股份公司 | Drive system and operating method thereof |
| JP2019167917A (en) * | 2018-03-26 | 2019-10-03 | 国立研究開発法人 海上・港湾・航空技術研究所 | Unburned fuel and nitrogen oxide reduction combustion method and combustion system using the method |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3005776B2 (en) | 2000-02-07 |
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