JP6425915B2 - 内燃機関の排気熱リサイクルシステム - Google Patents
内燃機関の排気熱リサイクルシステム Download PDFInfo
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- JP6425915B2 JP6425915B2 JP2014100657A JP2014100657A JP6425915B2 JP 6425915 B2 JP6425915 B2 JP 6425915B2 JP 2014100657 A JP2014100657 A JP 2014100657A JP 2014100657 A JP2014100657 A JP 2014100657A JP 6425915 B2 JP6425915 B2 JP 6425915B2
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- 238000002485 combustion reaction Methods 0.000 title claims description 61
- 238000004064 recycling Methods 0.000 title claims description 40
- 239000012530 fluid Substances 0.000 claims description 160
- 238000001816 cooling Methods 0.000 claims description 14
- 239000003921 oil Substances 0.000 claims description 13
- 238000004891 communication Methods 0.000 claims description 12
- 239000007788 liquid Substances 0.000 claims description 10
- 238000011144 upstream manufacturing Methods 0.000 claims description 9
- 239000010687 lubricating oil Substances 0.000 claims description 8
- 239000007921 spray Substances 0.000 claims description 7
- 238000012805 post-processing Methods 0.000 claims description 6
- 238000012546 transfer Methods 0.000 claims description 4
- 239000003344 environmental pollutant Substances 0.000 claims description 2
- 231100000719 pollutant Toxicity 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 description 5
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
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Classifications
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- 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
- F01N5/00—Exhaust or silencing apparatus combined or associated with devices profiting by exhaust energy
- F01N5/02—Exhaust or silencing apparatus combined or associated with devices profiting by exhaust energy the devices using heat
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K23/00—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids
- F01K23/02—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled
- F01K23/06—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle
- F01K23/065—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle the combustion taking place in an internal combustion piston engine, e.g. a diesel engine
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02G—HOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINE PLANTS; USE OF WASTE HEAT OF COMBUSTION ENGINES; NOT OTHERWISE PROVIDED FOR
- F02G5/00—Profiting from waste heat of combustion engines, not otherwise provided for
- F02G5/02—Profiting from waste heat of exhaust gases
- F02G5/04—Profiting from waste heat of exhaust gases in combination with other waste heat from combustion engines
-
- 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
- F02M26/22—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with coolers in the recirculation passage
- F02M26/23—Layout, e.g. schematics
- F02M26/25—Layout, e.g. schematics with coolers having bypasses
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- 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
- F02M26/22—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with coolers in the recirculation passage
- F02M26/23—Layout, e.g. schematics
- F02M26/28—Layout, e.g. schematics with liquid-cooled heat exchangers
-
- 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
- F02M26/22—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with coolers in the recirculation passage
- F02M26/29—Constructional details of the coolers, e.g. pipes, plates, ribs, insulation or materials
- F02M26/30—Connections of coolers to other devices, e.g. to valves, heaters, compressors or filters; Coolers characterised by their location on the engine
-
- 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
- F02M26/22—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with coolers in the recirculation passage
- F02M26/29—Constructional details of the coolers, e.g. pipes, plates, ribs, insulation or materials
- F02M26/32—Liquid-cooled heat exchangers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/16—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/02—Header boxes; End plates
- F28F9/026—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits
- F28F9/028—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits by using inserts for modifying the pattern of flow inside the header box, e.g. by using flow restrictors or permeable bodies or blocks with channels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/22—Arrangements for directing heat-exchange media into successive compartments, e.g. arrangements of guide plates
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P3/00—Liquid cooling
- F01P3/22—Liquid cooling characterised by evaporation and condensation of coolant in closed cycles; characterised by the coolant reaching higher temperatures than normal atmospheric boiling-point
- F01P3/2285—Closed cycles with condenser and feed pump
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02G—HOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINE PLANTS; USE OF WASTE HEAT OF COMBUSTION ENGINES; NOT OTHERWISE PROVIDED FOR
- F02G2260/00—Recuperating heat from exhaust gases of combustion engines and heat from cooling circuits
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/22—Arrangements for directing heat-exchange media into successive compartments, e.g. arrangements of guide plates
- F28F2009/222—Particular guide plates, baffles or deflectors, e.g. having particular orientation relative to an elongated casing or conduit
- F28F2009/226—Transversal partitions
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- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/14—Combined heat and power generation [CHP]
-
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Exhaust-Gas Circulating Devices (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Description
2 吸気マニホールド
3 排気マニホールド
4 エンジンラジエータ
5 インタクーラ
7 ギアトレーン
10 モータジェネレータ
20 バッテリー
30 インバータ
40 動力伝達部
50 レキュペレータ
60 リザーバタンク
62 流入口
64 流出口
70 作動流体ポンプ
100 作動流体循環ライン
200 EGRライン
210 EGRバルブ
220 EGRバイパスバルブ
300 EGR側熱交換ユニット
310 スーパヒータ
312 気液分離器
320 EGRクーラ
330 タービン
340 オイル分離器
346 分離ホール
350 作動流体バイパス
352 作動流体バイパスバルブ
360 冷却ファン
362 作動流体ラジエータ
370 TEGコンデンサ
400 排気側熱交換ユニット
402 後処理ユニット
404、406 排気管
410 熱交換チャンバ
412 連通孔
420 バッフル
430 チャンバ入口
440 チャンバ出口
460 ノズルプレート
462 噴霧孔
Claims (19)
- 内燃機関で発生した排気ガスの一部を吸気側に循環させるEGRラインと、
前記EGRラインから伝えられた熱により気化された作動流体でタービンを回転させる作動流体循環ラインと、
前記EGRラインと前記作動流体循環ラインを熱的に連結し、EGRガスと前記作動流体を熱交換して前記EGRガスを冷却し、前記EGRガスからの熱を前記作動流体に伝えるEGR側熱交換ユニットと、
前記排気ガスを外部へ排出する排気ラインに設けられ、前記排気ガスからの熱を前記作動流体に伝える排気側熱交換ユニットと、を備え、
前記排気側熱交換ユニットは、
前記排気ガスが通過する排気管と、
前記排気管を内部に収容し前記作動流体が流入されるチャンバ入口と、前記作動流体が抜け出すチャンバ出口とを有する熱交換チャンバと、
前記熱交換チャンバの内部空間を前記排気管の長さ方向に沿って複数の区域に区画するバッフルと、を備え、
前記バッフルの少なくとも一部には、前記熱交換チャンバの内部空間の一区域からこれと隣接した他区域まで前記作動流体の移動を許可する連通孔が形成されていることを特徴とする内燃機関の排気熱リサイクルシステム。 - 前記作動流体は、ランキンサイクル条件を満足することを特徴とする請求項1に記載の内燃機関の排気熱リサイクルシステム。
- 前記タービンの回転軸とともに回転することができるモータジェネレータをさらに備え、
前記モータジェネレータは、前記タービンから回転力の伝達を受けてバッテリーに貯蔵するか、前記バッテリーから電力の供給を受けて前記内燃機関に設けられた回転軸に動力を印加することができることを特徴とする請求項1に記載の内燃機関の排気熱リサイクルシステム。 - 前記作動流体は前記排気側熱交換ユニットを常に通過し、
前記作動流体は前記EGRラインを流れる前記排気ガスの温度が特定の温度(T1)以上のときのみ前記EGR側熱交換ユニットを通過することを特徴とする請求項1に記載の内燃機関の排気熱リサイクルシステム。 - 前記T1は500℃であることを特徴とする請求項4に記載の内燃機関の排気熱リサイクルシステム。
- 前記排気側熱交換ユニットは、前記EGR側熱交換ユニットより前記作動流体循環ラインの上流側に配置されていることを特徴とする請求項1に記載の内燃機関の排気熱リサイクルシステム。
- 液体状態の前記作動流体を貯蔵し流入口と流出口を有するリザーバタンクと、
前記リザーバタンクの流入口及び流出口全部と流体連通され前記リザーバタンクへ流入される前記作動流体と、
前記リザーバタンクから流れ出る前記作動流体との相互間を熱交換させるレキュペレータと、
をさらに備えることを特徴とする請求項1に記載の内燃機関の排気熱リサイクルシステム。 - 前記レキュペレータは、前記流入口を基準に前記リザーバタンクの上流側に配置され、前記流出口を基準に前記リザーバタンクの下流側に配置されることを特徴とする請求項7に記載の内燃機関の排気熱リサイクルシステム。
- 前記排気側熱交換ユニットは、
前記排気ガスの汚染物質低減のため前記排気ラインに設けられる後処理ユニットの下流側に設けられていることを特徴とする請求項1に記載の内燃機関の排気熱リサイクルシステム。 - 前記EGR側熱交換ユニットは、
EGRガスを冷却するEGRクーラと、
前記排気側熱交換ユニットを通過した前記作動流体に前記EGRガスからの熱を伝えるスーパヒータと、
を有することを特徴とする請求項1に記載の内燃機関の排気熱リサイクルシステム。 - 前記EGRガスが前記EGR側熱交換ユニットへ流入される流れを基準に、前記スーパヒータは前記EGRクーラより上流側に配置されることを特徴とする請求項10に記載の内燃機関の排気熱リサイクルシステム。
- 何れか一つのバッフルに形成された連通孔、及びこれと隣接した他のバッフルに形成された連通孔は、互いに反対側に位置することを特徴とする請求項1に記載の内燃機関の排気熱リサイクルシステム。
- 前記排気側熱交換ユニットは、
前記熱交換チャンバの内側面から離隔された状態で、前記熱交換チャンバの内部に形成される複数の区域のうち、前記チャンバ入口と連結されている区域である入口区域に形成され、但し、前記作動流体を微粒化させるための複数の噴霧孔を有するノズルプレートを有することを特徴とする請求項1に記載の内燃機関の排気熱リサイクルシステム。 - 前記チャンバ入口の前記熱交換チャンバの内部空間側端部は、漏斗状であることを特徴とする請求項13に記載の内燃機関の排気熱リサイクルシステム。
- 前記リザーバタンクと前記レキュペレータの間に配置された作動流体ポンプをさらに備え、
前記リザーバタンクと前記作動流体ポンプを繋ぐ配管は断熱処理されていることを特徴とする請求項8に記載の内燃機関の排気熱リサイクルシステム。 - 前記作動流体循環ラインは、
前記EGR側熱交換ユニットと前記タービンの間の地点、及び前記タービンと前記レキュペレータの間の地点を連結する作動流体バイパスと、
前記作動流体バイパスに設けられ、前記作動流体を前記レキュペレータに選択的にバイパスさせる作動流体バイパスバルブと、
をさらに備えることを特徴とする請求項8に記載の内燃機関の排気熱リサイクルシステム。 - 前記作動流体循環ラインは、
前記タービンと前記レキュペレータの間の配管に形成され、前記タービンから排出されるタービン潤滑油を分離するオイル分離器をさらに備えることを特徴とする請求項7に記載の内燃機関の排気熱リサイクルシステム。 - 前記作動流体循環ラインは、
前記リザーバタンクの流入口と前記レキュペレータの間に配置され、前記作動流体から熱量を奪い取るTEGコンデンサをさらに備えていることを特徴とする請求項7に記載の内燃機関の排気熱リサイクルシステム。 - 前記作動流体循環ラインは冷却ファンをさらに備え、
前記レキュペレータと前記TEGコンデンサの間の配管は、冷却効率を高めるため複数回ほど曲がっている作動流体ラジエータで形成され、前記作動流体ラジエータは前記冷却ファンにより冷却されることを特徴とする請求項18に記載の内燃機関の排気熱リサイクルシステム。
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Application Number | Priority Date | Filing Date | Title |
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KR1020130161695A KR20150073705A (ko) | 2013-12-23 | 2013-12-23 | 내연기관의 배기열 재활용 시스템 |
KR10-2013-0161695 | 2013-12-23 |
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JP2015121206A JP2015121206A (ja) | 2015-07-02 |
JP6425915B2 true JP6425915B2 (ja) | 2018-11-21 |
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JP2014100657A Expired - Fee Related JP6425915B2 (ja) | 2013-12-23 | 2014-05-14 | 内燃機関の排気熱リサイクルシステム |
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Country | Link |
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US (1) | US9745881B2 (ja) |
EP (1) | EP2886820B1 (ja) |
JP (1) | JP6425915B2 (ja) |
KR (1) | KR20150073705A (ja) |
CN (1) | CN104727912B (ja) |
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---|---|---|---|---|
KR101567171B1 (ko) * | 2013-12-27 | 2015-11-06 | 현대자동차주식회사 | 내연기관의 배기열 재활용 시스템 |
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US20150176466A1 (en) | 2015-06-25 |
JP2015121206A (ja) | 2015-07-02 |
EP2886820B1 (en) | 2018-04-25 |
US9745881B2 (en) | 2017-08-29 |
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CN104727912A (zh) | 2015-06-24 |
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