WO2003038250A1 - Moteur a combustion interne - Google Patents
Moteur a combustion interne Download PDFInfo
- Publication number
- WO2003038250A1 WO2003038250A1 PCT/JP2002/011012 JP0211012W WO03038250A1 WO 2003038250 A1 WO2003038250 A1 WO 2003038250A1 JP 0211012 W JP0211012 W JP 0211012W WO 03038250 A1 WO03038250 A1 WO 03038250A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- cooling water
- combustion chamber
- cylinder head
- cooling
- internal combustion
- Prior art date
Links
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 72
- 239000000498 cooling water Substances 0.000 claims abstract description 79
- 230000005855 radiation Effects 0.000 claims abstract description 4
- 210000000056 organ Anatomy 0.000 claims 1
- 238000001816 cooling Methods 0.000 abstract description 18
- 239000002918 waste heat Substances 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 3
- 230000002708 enhancing effect Effects 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 18
- 239000007789 gas Substances 0.000 description 6
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
Classifications
-
- 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
-
- 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
- F01P3/02—Arrangements for cooling cylinders or cylinder heads
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F1/00—Cylinders; Cylinder heads
- F02F1/24—Cylinder heads
- F02F1/26—Cylinder heads having cooling means
- F02F1/36—Cylinder heads having cooling means for liquid cooling
- F02F1/38—Cylinder heads having cooling means for liquid cooling the cylinder heads being of overhead valve type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F1/00—Cylinders; Cylinder heads
- F02F1/24—Cylinder heads
- F02F1/26—Cylinder heads having cooling means
- F02F1/36—Cylinder heads having cooling means for liquid cooling
- F02F1/40—Cylinder heads having cooling means for liquid cooling cylinder heads with means for directing, guiding, or distributing liquid stream
-
- 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
- F01P3/02—Arrangements for cooling cylinders or cylinder heads
- F01P2003/024—Cooling cylinder heads
-
- 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
Definitions
- the present invention relates to an internal combustion engine having a cooling water passage for cooling combustion heat transmitted from a combustion chamber to a cylinder head, above a combustion chamber in a cylinder head.
- a cooling water passage is formed in the cylinder head of the internal combustion engine so as to cover the upper part of the combustion chamber, and a large amount of cooling water flows through the cooling water passage where the heat load is large, and the cooling water where the heat load is small.
- the present invention has been made in view of the above circumstances, and has as its object to recover heat transferred from a combustion chamber of an internal combustion engine to a cylinder head to a maximum.
- a cooling water passage for cooling combustion heat transmitted from a combustion chamber to a cylinder head is provided above a combustion chamber in a cylinder head.
- the cooling water passage is formed in multiple layers so as to cover the combustion chamber, and the cooling water in the cooling water passage is distant from the combustion chamber so as to face the direction of radiation of combustion heat from the combustion chamber.
- An internal combustion engine is proposed, characterized in that it flows from a side layer to a layer closer to it.
- the cooling water passage is formed in multiple layers so as to cover the combustion chamber.
- the entire length of the cooling water passage can be secured long enough to effectively cool the area around the combustion chamber of the cylinder head.
- the cooling water flows from the layer farther from the combustion chamber to the layer closer to it, the cooling water flows in the opposite direction to the direction of the combustion heat radiation from the combustion chamber.
- a sufficient temperature difference from the water can be ensured over the entire area of the cooling water passage, and the effect of cooling the cylinder head by the cooling water can be further enhanced.
- the temperature of the cooling water can be raised and the waste heat recovery efficiency can be increased.
- the cooling water which has passed through the cooling water passage and whose temperature has risen is used as a heat source of another auxiliary machine.
- a fuel engine is proposed.
- the cooling water that has passed through the cooling water passage and has increased in temperature is used as a heat source for other auxiliary equipment, so that the waste heat of the internal combustion engine can be effectively used without being wasted.
- the temperature of the cooling water can be reduced or eliminated in Laje night.
- the expander 12 of the embodiment corresponds to the auxiliary machine of the present invention.
- FIG. 1 is a view showing the overall configuration of a Rankine cycle device
- FIG. 2 is a longitudinal sectional view around a cylinder head of an internal combustion engine
- FIG. Fig. 4 is a sectional view taken along the line 4-14 in Fig. 3
- Fig. 5 is a sectional view taken along the line 5-5 in Fig. 4
- Fig. 6 is cooling water in the cooling block.
- FIG. 4 is a schematic diagram showing the flow direction of the slab.
- FIG. 1 shows the overall configuration of a Rankine cycle device to which the present invention is applied.
- the Rankine cycle device which recovers the thermal energy of the exhaust gas of the internal combustion engine E and converts it into mechanical energy, uses the exhaust gas exhausted by the internal combustion engine E to heat water to generate high-temperature, high-pressure steam.
- An expander 12 that generates mechanical energy by operating with the high-temperature and high-pressure steam generated by the first evaporator 11 1, and a cooled and reduced-pressure steam that has been completed by the expander 12.
- Condenser 13 cooled and returned to water, exited condenser 13
- a reservoir tank 14 for storing water, a low-pressure pump 15 for pressurizing the water stored in the reserve tank 14, and a high-pressure pump 16 for further pressurizing the water pressurized by the low-pressure pump 15 are provided.
- Most of the water that has exited the high-pressure pump 16 is supplied to a first evaporator 11 provided downstream of the exhaust port 17 of the internal combustion engine E, where it becomes high-temperature high-pressure steam and is supplied to an expander 12.
- a portion of the water supplied and flowing out of the high-pressure pump 16 passes through a second evaporator provided on the outer periphery of the exhaust port 17 and is heated. Merges at a predetermined position inside.
- the water that has exited the low-pressure pump 15 is supplied to the cylinder head 18 of the internal combustion engine E, where it is heated by exchanging heat with the heat transmitted from the combustion chamber 19 to the cylinder head 18.
- the heated water becomes steam when the temperature and pressure are appropriately adjusted and combined with the high-temperature and high-pressure steam supplied from the first evaporator 11 in the expander 12 to improve the output of the expander 12. To contribute.
- a cylinder head 18 and a head cover 22 are connected to the cylinder block 21 of the internal combustion engine E, and slide on the cylinder sleeve 23 stored in the cylinder block 21.
- a combustion chamber 19 is formed between the upper surface of the piston 24 movably fitted and the lower surface of the cylinder head 18.
- the cylinder head 18 has two intake ports 25 and one exhaust port 17 connected to the combustion chamber 19, and an intake valve hole 27 at the downstream end of the intake port 25 is formed. It is opened and closed by an intake valve 28, and an exhaust valve hole 29 at the upstream end of the exhaust boat 17 is opened and closed by an exhaust valve 30.
- the intake port 25 is formed directly on the cylinder head 18, while the exhaust port 17 is made up of a separate member from the cylinder head 18 and is fitted into the cylinder head 18
- Cylinder head 1 8 supports a single camshaft 31, an intake rocker arm shaft 32, and an exhaust rocker arm shaft 33.
- the intake rocker arm 34 supported swingably on the intake rocker arm shaft 32 has one end in contact with the intake cam 35 provided on the camshaft 31 and the other end connected to the cylinder head 1.
- the valve spring 37 is slidably supported by a valve guide 36 provided on the valve 8 and comes into contact with the stem end of the intake valve 28 urged upward by a valve spring 37.
- One end of an exhaust rocker arm 38 pivotally supported by the exhaust port armer arm shaft 33 is in contact with an exhaust cam 39 provided on the camshaft 31 and the other end is a cylinder head.
- the valve spring 41 is slidably supported by a valve guide 40 provided on 18 and contacts the stem end of the exhaust valve 30 urged upward by a valve spring 41.
- a spark plug 43 whose lower end faces the combustion chamber 19 is provided inside the two guide cylinders 42 provided in the cylinder head 18. Further, the outside of the exhaust port 17 of the cylinder head 18 is expanded in a trumpet shape, and a part of the first evaporator 11 is fitted and fixed there.
- the cooling block 51 which constitutes the ceiling wall of the combustion chamber 19, has a substantially similar laminate on the wall of the combustion chamber 19 as a whole, and is fixed so as to fit to the lower surface of the cylinder head 18 Is done.
- the cooling block 51 is formed by vertically stacking four members, the outermost casing 52, the upper block 53 below it, and the middle block 54 below it.
- the lower block 55 is provided with a lower wall, and a ceiling wall of the combustion chamber 19, an intake valve hole 27, and an intake valve hole 29 are formed on the lower surface of the lower block 55.
- the cooling water passage 53 of the upper block 53 of the cooling block 51, the cooling water passage 54 of the middle block 54, and the cooling water passage of the lower block 55 5 5a is connected in series as a whole, and the low temperature Water is supplied to the upstream end of the cooling water passage 53 a of the upper block 53 via the cooling water supply passage 56, and the high-temperature water flows from the downstream end of the cooling water passage 55 a of the lower block 55. Water is supplied to the expander 12 via the cooling water discharge passage 57. That is, the low-temperature water from the low-pressure pump 15 passes through the cooling water passage 53 a of the upper block 53, which has a relatively low temperature because it is farthest from the combustion chamber 19, and then flows out of the combustion chamber 19.
- the upper block 53, the middle block 54, and the lower block 55 are stacked in three layers to form the labyrinth-like cooling water passages 53a, 54a, 55a having a long overall length.
- Heat exchange can be sufficiently performed between the cylinder head 18 around the combustion chamber 19 and the cooling effect can be enhanced.
- the cooling water moves from a position far from the combustion chamber 19 to a position closer to the combustion chamber 19. Flow, the temperature difference between the cylinder head 18 and the cooling water is sufficiently secured in the entire cooling water passages 53a, 54a, 55a to maximize the heat exchange efficiency.
- the cooling water can be effectively heated while effectively cooling the cylinder head 18, thereby maximally contributing to an increase in the output of the expander 12.
- the cylinder head 18 can be sufficiently cooled by the cooling water flowing in the cooling block 51, the load on the cooling system that circulates the cooling water in the ordinary water jacket and the lager can be reduced.
- the size of Laje can be reduced.
- the cylinder head 18 and the separate exhaust port 17 are composed of an inner exhaust port body 58 made of a thick member, and a thin wall covering the outside.
- the cooling water passage 58 a is formed between the cover 59 and the maze-shaped groove formed on the surface of the exhaust port main body 58.
- the cooling water passage 58a has a cooling water inlet 60 and a cooling water outlet 61, and a part of the water that has exited the high-pressure pump 16 passes from the cooling water inlet 60 to the cooling water passage 5 of the exhaust port 17. After flowing into 8 a and cooling the exhaust port 17 having the largest heat load, the cooling water is supplied from the cooling water outlet 61 to the intermediate portion of the first evaporator 11.
- the performance of the first evaporator 11 is improved by supplying the cooling water, which effectively collects the waste heat of the exhaust gas passing through the exhaust port 17, to the intermediate portion of the first evaporator 11.
- the output of the expander 12 can be maximized by further increasing the output.
- the cooling block 51 is constituted by three layers of the upper layer block 53, the middle layer block 54, and the lower layer block 55, but may be constituted by two layers or four or more layers.
- the heated cooling water is supplied to the expander 12 of the Rankine cycle device, but it can be used as a heat source of another auxiliary device such as a thermoelectric element.
- the present invention can be suitably applied to an internal combustion engine equipped with a Rankine cycle device, but the present invention can be applied to an internal combustion engine for any use that recovers and uses waste heat.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP02777933A EP1447539A1 (en) | 2001-11-02 | 2002-10-23 | Internal combustion engine |
US10/494,054 US7191740B2 (en) | 2001-11-02 | 2002-10-23 | Internal combustion engine |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2001-337534 | 2001-11-02 | ||
JP2001337534A JP3730900B2 (ja) | 2001-11-02 | 2001-11-02 | 内燃機関 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2003038250A1 true WO2003038250A1 (fr) | 2003-05-08 |
Family
ID=19152154
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2002/011012 WO2003038250A1 (fr) | 2001-11-02 | 2002-10-23 | Moteur a combustion interne |
Country Status (4)
Country | Link |
---|---|
US (1) | US7191740B2 (ja) |
EP (1) | EP1447539A1 (ja) |
JP (1) | JP3730900B2 (ja) |
WO (1) | WO2003038250A1 (ja) |
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JP2006052666A (ja) * | 2004-08-11 | 2006-02-23 | Nissan Motor Co Ltd | 筒内直接噴射式内燃機関 |
JP4182437B2 (ja) * | 2004-10-04 | 2008-11-19 | ソニー株式会社 | オーディオビデオ同期システム及びモニター装置 |
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US8386325B2 (en) * | 2008-09-18 | 2013-02-26 | Sap Ag | Architectural design for plan-driven procurement application software |
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US8627663B2 (en) * | 2009-09-02 | 2014-01-14 | Cummins Intellectual Properties, Inc. | Energy recovery system and method using an organic rankine cycle with condenser pressure regulation |
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CN103237961B (zh) | 2010-08-05 | 2015-11-25 | 康明斯知识产权公司 | 采用有机朗肯循环的排放临界增压冷却 |
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US8707914B2 (en) | 2011-02-28 | 2014-04-29 | Cummins Intellectual Property, Inc. | Engine having integrated waste heat recovery |
US8893495B2 (en) | 2012-07-16 | 2014-11-25 | Cummins Intellectual Property, Inc. | Reversible waste heat recovery system and method |
JP2014095345A (ja) * | 2012-11-09 | 2014-05-22 | Isuzu Motors Ltd | 内燃機関 |
US9140209B2 (en) | 2012-11-16 | 2015-09-22 | Cummins Inc. | Rankine cycle waste heat recovery system |
US9845711B2 (en) | 2013-05-24 | 2017-12-19 | Cummins Inc. | Waste heat recovery system |
US9422886B2 (en) | 2013-07-03 | 2016-08-23 | Electro-Motive Diesel, Inc. | Cylinder head assembly having cooled valve insert |
JP7208053B2 (ja) * | 2019-02-19 | 2023-01-18 | 株式会社Subaru | 冷却装置 |
CN114991983A (zh) | 2021-03-01 | 2022-09-02 | 比亚迪股份有限公司 | 发动机和车辆 |
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JPS5825551A (ja) * | 1981-08-10 | 1983-02-15 | Mitsui Eng & Shipbuild Co Ltd | デイ−ゼル機関のシリンダカバ−等の冷却構造 |
JPS6332116A (ja) * | 1986-07-25 | 1988-02-10 | Takuma Co Ltd | 内燃機関の冷却装置 |
JP2001183076A (ja) * | 1999-12-24 | 2001-07-06 | Isuzu Ceramics Res Inst Co Ltd | 熱交換器の構造 |
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JPH0333421A (ja) * | 1989-06-29 | 1991-02-13 | Mazda Motor Corp | エンジンの冷却装置 |
JP4191353B2 (ja) | 2000-01-26 | 2008-12-03 | 本田技研工業株式会社 | 内燃機関 |
US6279516B1 (en) * | 2000-02-16 | 2001-08-28 | Deere & Company | Cylinder head with two-plane water jacket |
AT5301U1 (de) * | 2001-01-29 | 2002-05-27 | Avl List Gmbh | Zylinderkopf für mehrere zylinder |
JP3881872B2 (ja) * | 2001-11-15 | 2007-02-14 | 本田技研工業株式会社 | 内燃機関 |
-
2001
- 2001-11-02 JP JP2001337534A patent/JP3730900B2/ja not_active Expired - Fee Related
-
2002
- 2002-10-23 WO PCT/JP2002/011012 patent/WO2003038250A1/ja active Application Filing
- 2002-10-23 EP EP02777933A patent/EP1447539A1/en not_active Withdrawn
- 2002-10-23 US US10/494,054 patent/US7191740B2/en not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5825551A (ja) * | 1981-08-10 | 1983-02-15 | Mitsui Eng & Shipbuild Co Ltd | デイ−ゼル機関のシリンダカバ−等の冷却構造 |
JPS6332116A (ja) * | 1986-07-25 | 1988-02-10 | Takuma Co Ltd | 内燃機関の冷却装置 |
JP2001183076A (ja) * | 1999-12-24 | 2001-07-06 | Isuzu Ceramics Res Inst Co Ltd | 熱交換器の構造 |
Also Published As
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US7191740B2 (en) | 2007-03-20 |
JP2003138938A (ja) | 2003-05-14 |
JP3730900B2 (ja) | 2006-01-05 |
EP1447539A1 (en) | 2004-08-18 |
US20050051114A1 (en) | 2005-03-10 |
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