WO2015114777A1 - エンジン - Google Patents
エンジン Download PDFInfo
- Publication number
- WO2015114777A1 WO2015114777A1 PCT/JP2014/052113 JP2014052113W WO2015114777A1 WO 2015114777 A1 WO2015114777 A1 WO 2015114777A1 JP 2014052113 W JP2014052113 W JP 2014052113W WO 2015114777 A1 WO2015114777 A1 WO 2015114777A1
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- WO
- WIPO (PCT)
- Prior art keywords
- cooling water
- cooling
- air
- supplied
- intercooler
- Prior art date
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Classifications
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- 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
- F02B29/00—Engines characterised by provision for charging or scavenging not provided for in groups F02B25/00, F02B27/00 or F02B33/00 - F02B39/00; Details thereof
- F02B29/04—Cooling of air intake supply
- F02B29/045—Constructional details of the heat exchangers, e.g. pipes, plates, ribs, insulation, materials, or manufacturing and assembly
- F02B29/0462—Liquid cooled heat exchangers
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- 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
- F02B29/00—Engines characterised by provision for charging or scavenging not provided for in groups F02B25/00, F02B27/00 or F02B33/00 - F02B39/00; Details thereof
- F02B29/04—Cooling of air intake supply
- F02B29/0406—Layout of the intake air cooling or coolant circuit
- F02B29/0412—Multiple heat exchangers arranged in parallel or in series
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- 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
- F02B29/00—Engines characterised by provision for charging or scavenging not provided for in groups F02B25/00, F02B27/00 or F02B33/00 - F02B39/00; Details thereof
- F02B29/04—Cooling of air intake supply
- F02B29/0406—Layout of the intake air cooling or coolant circuit
- F02B29/0437—Liquid cooled heat exchangers
-
- 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
- F02B29/00—Engines characterised by provision for charging or scavenging not provided for in groups F02B25/00, F02B27/00 or F02B33/00 - F02B39/00; Details thereof
- F02B29/04—Cooling of air intake supply
- F02B29/045—Constructional details of the heat exchangers, e.g. pipes, plates, ribs, insulation, materials, or manufacturing and assembly
- F02B29/0475—Constructional details of the heat exchangers, e.g. pipes, plates, ribs, insulation, materials, or manufacturing and assembly the intake air cooler being combined with another device, e.g. heater, valve, compressor, filter or EGR cooler, or being assembled on a special engine location
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- 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
- F02B37/004—Engines characterised by provision of pumps driven at least for part of the time by exhaust with exhaust drives arranged in series
-
- 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
- F02B37/013—Engines characterised by provision of pumps driven at least for part of the time by exhaust with exhaust-driven pumps arranged in series
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- 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
- F28D7/0066—Multi-circuit heat-exchangers, e.g. integrating different heat exchange sections in the same unit or heat-exchangers for more than two fluids
- F28D7/0075—Multi-circuit heat-exchangers, e.g. integrating different heat exchange sections in the same unit or heat-exchangers for more than two fluids with particular circuits for the same heat exchange medium, e.g. with the same heat exchange medium flowing through sections having different heat exchange capacities or for heating or cooling the same heat exchange medium at different temperatures
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- 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
- F28D7/1607—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 with particular pattern of flow of the heat exchange media, e.g. change of flow direction
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- 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
- F28D7/163—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 with conduit assemblies having a particular shape, e.g. square or annular; with assemblies of conduits having different geometrical features; with multiple groups of conduits connected in series or parallel and arranged inside common casing
- F28D7/1653—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 with conduit assemblies having a particular shape, e.g. square or annular; with assemblies of conduits having different geometrical features; with multiple groups of conduits connected in series or parallel and arranged inside common casing the conduit assemblies having a square or rectangular shape
- F28D7/1661—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 with conduit assemblies having a particular shape, e.g. square or annular; with assemblies of conduits having different geometrical features; with multiple groups of conduits connected in series or parallel and arranged inside common casing the conduit assemblies having a square or rectangular shape with particular pattern of flow of the heat exchange media, e.g. change of flow direction
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- 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
- F28F9/26—Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators
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- 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
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
- F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
- F28D2021/008—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for vehicles
- F28D2021/0082—Charged air coolers
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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
- 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 engine. Specifically, it relates to an engine with a two-stage turbocharger.
- an engine with a two-stage supercharger in which a cooling device is provided on the downstream side of each of a first supercharger and a second supercharger.
- the air pressurized by the first supercharger is cooled by an intercooler that is a cooling device and supplied to the second supercharger, and the air further pressurized by the second supercharger is supplied by an aftercooler that is a cooling device. It is cooled and supplied to the engine.
- An engine with a two-stage supercharger described in Patent Document 1 is provided with a dedicated intercooler for each supercharger and a cooling water pipe for supplying cooling water to each intercooler. For this reason, it is disadvantageous in that the space required for installing the engine increases with an increase in the number of superchargers. On the other hand, reducing the capacity of the intercooler to reduce the space required for installing the engine is disadvantageous in that the cooling performance of the intercooler decreases.
- the present invention has been made in view of the situation as described above.
- An engine with a two-stage turbocharger that can suppress an increase in space required for installing the engine without causing a decrease in cooling performance of the intercooler. For the purpose of provision.
- the intake air pressurized by the first compressor unit is cooled by an intercooler and supplied to the second compressor unit.
- the intake air pressurized by the second compressor unit is cooled by the intercooler.
- the first air passage and the second air passage are configured to intersect a cooling core to which cooling water is supplied into the interior of the cooler case of the intercooler, and the first compressor portion is the first air passage. And the second compressor section is connected to the second air passage.
- the first air passage and the second air passage are arranged so as to be adjacent to each other via a partition member configured to be hollow.
- cooling water is supplied into the partition member.
- the cooling water supplied to the cooling core is configured to be discharged via the inside of the partition member.
- the cooling core includes a first cooling core and a second cooling core
- the partition member is disposed between the first cooling core and the second cooling core, and is provided on one side of the cooler case.
- a cooling water supply port and a cooling water discharge port are provided, a cooling water passage is formed on the other side surface, a supply side storage chamber and a discharge side storage chamber are formed inside the partition member, and the first cooling core and the second cooling core
- a plurality of cooling pipes of the cooling core are connected to the supply-side storage chamber and the discharge-side storage chamber so that the cooling water can be stored, and the cooling water supplied from the cooling water supply port to the first cooling core is supplied.
- the cooling water supplied to the second cooling core via the side storage chamber and supplied to the second cooling core is supplied to the first cooling core via the discharge side storage chamber and discharged from the cooling water discharge port.
- a cooling core to which cooling water is supplied is disposed inside the cooler case of the intercooler, a plurality of air passages are configured to intersect with the cooling core, and pressurized by the first compressor unit
- the intake air is supplied to one or more of the plurality of air passages, and the intake air pressurized by the second compressor unit is not supplied by the first compressor unit of the plurality of air passages. It is configured to be supplied to the air passage.
- intake air supplied from a plurality of compressors is cooled by one intercooler.
- the increase in the space required for engine installation can be suppressed without deteriorating the cooling performance of the intercooler.
- the heat insulation between the air passages in one intercooler is improved, and the intake air supplied from different compressors in each air passage is stably cooled.
- the increase in the space required for engine installation can be suppressed without deteriorating the cooling performance of the intercooler.
- the heat insulation between the air passages in one intercooler is further improved, and the intake air supplied from different compressors in each air passage is cooled more stably.
- the increase in the space required for engine installation can be suppressed without deteriorating the cooling performance of the intercooler.
- the cooling water in the partition member circulates to further improve the heat insulation between the air passages in one intercooler, and the cooling of the intake air supplied from different compressors in each air passage is more stable. Done. Thereby, the increase in the space required for engine installation can be suppressed without deteriorating the cooling performance of the intercooler.
- intake air at different temperatures can be simultaneously supplied to a single intercooler without being mixed. Further, the heat insulation of the plurality of air passages is improved, and heat exchange between the intake air passing through the plurality of air passages is suppressed. Thereby, the air from a different path
- intake air supplied from a plurality of compressors is cooled by a single intercooler a plurality of times in accordance with the shape of the intercooler.
- the engine 1 rotates and drives the output shaft by mixing the air supplied via the intake device 2 and the fuel supplied from the six fuel injection valves 4 in each cylinder 3 and burning them.
- the engine 1 discharges exhaust generated by fuel combustion to the outside through an exhaust device 5.
- a first supercharger 6, a second supercharger 10, and an intercooler 14 are connected to the engine 1.
- the engine 1 is connected to the second turbine unit 11 of the second supercharger 10 via the exhaust pipe 5a.
- the engine 1 is connected to the intercooler 14 via the intake pipe 2d of the intake device 2.
- the first supercharger 6 which is a low pressure stage supercharger (first supercharger) pressurizes and compresses the intake air using the exhaust pressure of the exhaust as a drive source.
- the first supercharger 6 is disposed at one end of the engine 1 in the output shaft direction.
- the first supercharger 6 includes a first turbine unit 7 and a first compressor unit 8.
- the 1st turbine part 7 is comprised rotatably by the exhaust pressure of the exhaust_gas
- 1st compressor part 8 is connected with the 1st turbine part 7 with connecting shaft 9, and is constituted rotatably.
- the first compressor unit 8 is configured to be able to compress and compress intake air by rotation.
- the first compressor unit 8 is configured to be able to suck external air.
- the first compressor unit 8 is connected to the first air passage 19 of the intercooler 14 via the intake pipe 2a.
- the second supercharger 10 which is a high-pressure supercharger (second supercharger), is compressed by the first supercharger 6, which is a low-pressure supercharger, using the exhaust pressure of the exhaust as a drive source. Is pressure-compressed again.
- the second supercharger 10 includes a second turbine unit 11 and a second compressor unit 12.
- the second supercharger 10 is disposed on one side end of the engine 1 in the output shaft direction and adjacent to the first supercharger 6.
- the second turbine unit 11 is configured to be rotatable by the exhaust pressure of the exhaust supplied from the engine 1 through the exhaust pipe 5a.
- the second turbine unit 11 is connected to the first turbine unit 7 of the first supercharger 6 through the exhaust pipe 5b.
- the first turbine unit 7 communicates with the outside through the exhaust pipe 5c. That is, the exhaust device 5 is configured by connecting the exhaust pipe 5a, the second turbine unit 11, the exhaust pipe 5b, the first turbine unit 7, and the exhaust pipe 5c in order from the upstream side.
- the second compressor unit 12 is connected to the second turbine unit 11 by a connecting shaft 13 and is configured to be rotatable.
- the second compressor unit 12 is configured to be able to compress and compress intake air by rotation.
- the 2nd compressor part 12 is connected to the 2nd air passage 20 of the below-mentioned intercooler 14 via intake pipe 2c.
- the intercooler 14 cools the intake air.
- the intercooler 14 cools the intake air by exchanging heat between the cooling water supplied by the cooling water pump 23 and the intake air.
- the intercooler 14 is disposed at one end portion in the output shaft direction of the engine 1 and below the second supercharger 10.
- the intercooler 14 includes a first air passage 19 and a second air passage 20 that are independent of each other.
- the first air passage 19 is connected to the second compressor unit 12 of the second supercharger 10 via the intake pipe 2b.
- the second air passage 20 is connected to the engine 1 via the intake pipe 2d.
- the intake device 2 includes the first compressor section 8, the intake pipe 2a, the first air passage 19 of the intercooler 14, the intake pipe 2b, the second compressor section 12, the intake pipe 2c, and the second of the intercooler 14 in order from the upstream side.
- An air passage 20 is connected.
- the exhaust from the engine 1 is supplied to the second turbine unit 11 of the second supercharger 10 through the exhaust pipe 5a.
- the second turbine unit 11 is rotated by the exhaust pressure of the exhaust.
- the rotational power of the second turbine unit 11 is transmitted to the second compressor unit 12 via the connecting shaft 13.
- the second compressor unit 12 is rotated by the rotational power transmitted from the second turbine unit 11.
- the exhaust gas supplied to the second turbine unit 11 is discharged from the second supercharger 10 through the exhaust pipe 5b.
- Exhaust gas discharged from the second supercharger 10 is supplied to the first turbine section 7 of the first supercharger 6 through the exhaust pipe 5b.
- the first turbine unit 7 is rotated by the exhaust pressure of the exhaust.
- the rotational power of the first turbine unit 7 is transmitted to the first compressor unit 8 via the connecting shaft 9.
- the first compressor unit 8 is rotated by the rotational power transmitted from the first turbine unit 7.
- Exhaust gas supplied to the first turbine section 7 is discharged to the outside through an exhaust pipe 5c, a purification device (not shown), and the like.
- the intake air discharged from the first supercharger 6 is supplied to the first air passage 19 of the intercooler 14 through the intake pipe 2a.
- the intake air is cooled in the first air passage 19.
- the intake air supplied to the first air passage 19 is discharged from the intercooler 14 via the intake pipe 2b.
- the intake air discharged from the intercooler 14 is supplied to the second compressor unit 12 of the second supercharger 10 through the intake pipe 2b.
- the intake air is sucked and pressurized and compressed by the second compressor unit 12 rotated by the rotational power from the second turbine unit 11 of the second supercharger 10. At this time, the intake air is pressurized and compressed, so that compression heat is generated and the temperature rises.
- the intake air compressed and compressed by the second compressor unit 12 is discharged from the second supercharger 10 through the intake pipe 2c.
- the intake air discharged from the second supercharger 10 is supplied to the second air passage 20 of the intercooler 14 through the intake pipe 2c.
- the intake air is cooled in the second air passage 20.
- the intake air supplied to the second air passage 20 is discharged from the intercooler 14 through the intake pipe 2d.
- the intake air discharged from the intercooler 14 is supplied to the engine 1 through the intake pipe 2d.
- intercooler 14 according to the first embodiment of the present invention will be specifically described with reference to FIGS. 8 to 10.
- the intercooler 14 cools the intake air discharged from the first supercharger 6 and the second supercharger 10 with cooling water.
- the intercooler 14 mainly includes a cooler case 15, a first cooling core 21, and a second cooling core 22.
- the cooler case 15 is a main component constituting the intercooler 14.
- the cooler case 15 is formed in a substantially rectangular parallelepiped shape.
- a first wall surface 15 a is formed on the first side surface of the cooler case 15 so as to cover the entire first side surface.
- a second wall surface 15b is formed on the second side surface of the cooler case 15 that faces the first side surface so as to cover the entire second side surface.
- the first wall surface 15a is provided with a cooling water pipe connection cover 16 so as to cover the entire first wall surface 15a.
- the cooling water pipe connection cover 16 is formed so that a space is formed between the cooling water pipe connection cover 16 and the first wall surface 15a.
- the space formed by the cooling water pipe connection cover 16 and the first wall surface 15a is divided by a cover dividing plate 16a extending from the cooling water pipe connection cover 16 so as to contact the first wall surface 15a.
- the cooling water pipe connection cover 16 is formed with a cooling water supply port 16b so as to communicate with one of the spaces divided by the cover dividing plate 16a.
- the first side surface of the cooler case 15 includes the first wall surface 15a, the cooling water pipe connection cover 16 portion in which the cooling water supply port 16b is formed, and the cooling water supply chamber 16d from the cover dividing plate 16a.
- the cooling water pipe connection cover 16 is formed with a cooling water discharge port 16c so as to communicate with the other of the divided spaces.
- a cooling water discharge chamber 16e is configured on the first side surface of the cooler case 15 from the first wall surface 15a, the cooling water pipe connection cover 16 portion where the cooling water discharge port 16c is formed, and the cover dividing plate 16a.
- a cooling water pipe 24a is connected to the cooling water supply port 16b.
- a cooling water pipe 24b is connected to the cooling water discharge port 16c.
- a cooling channel cover 17 is attached to the second wall surface 15b so as to cover the entire second wall surface 15b.
- the cooling water channel cover 17 is formed so that a space is formed between the cooling water channel cover 17 and the second wall surface 15b.
- a cooling water passage 17 a is configured from the second wall surface 15 b and the cooling water passage cover 17 on the second side surface of the cooler case 15.
- a third wall surface 15c is formed on the third side surface of the cooler case 15 so as to cover the entire third side surface.
- a fourth wall surface 15 d is formed so as to cover the entire fourth side surface.
- the partition wall surface 18 which is a partition member is provided so that an edge part may be connected to the 3rd wall surface 15c and the 4th wall surface 15d, respectively. That is, the partition wall surface 18 divides the inside of the cooler case 15 into two.
- the partition wall surface 18 is disposed so that the plate surface faces the first wall surface 15a.
- a first air passage 19 is formed in the cooler case 15 from the first wall surface 15 a, the third wall surface 15 c, the fourth wall surface 15 d, and the partition wall surface 18.
- a second air passage 20 is configured by the second wall surface 15 b, the third wall surface 15 c, the fourth wall surface 15 d, and the partition wall surface 18. That is, the cooler case 15 is configured such that the first air passage 19 and the second air passage 20 are adjacent to each other through the partition wall surface 18.
- a first air supply port 19 a of the first air passage 19 and a second air discharge port 20 b of the second air passage 20 are configured on the fifth side surface of the cooler case 15.
- a first air discharge port 19b of the first air passage 19 and a second air supply port 20a of the second air passage 20 are formed on the sixth side surface of the cooler case 15 that faces the fifth side surface.
- the 1st compressor part 8 of the 1st supercharger 6 is connected to the 1st air supply port 19a via the intake pipe 2a (refer FIG. 1, FIG. 8).
- the 2nd compressor part 12 of the 2nd supercharger 10 is connected to the 2nd air supply port 20a via the intake pipe 2c (refer FIG. 1, FIG. 8).
- the partition wall 18 is configured to be hollow inside.
- the partition division plate 18 a is disposed at a position overlapping the cover division plate 16 a of the cooling water pipe connection cover 16. That is, the internal space of the partition wall 18 faces the supply side storage chamber 18b facing the cooling water supply chamber 16d configured on the first side surface of the cooler case 15 and the cooling water discharge chamber 16e configured on the first side surface.
- the discharge side storage chamber 18c is configured.
- the first cooling core 21 and the second cooling core 22 exchange heat between the cooling water and the intake air.
- the first cooling core 21 includes a plurality of cooling water thin tubes 21a, 21a (hereinafter simply referred to as “a plurality of cooling water thin tubes 21a”), and a plurality of plate-like fins 21b. 21b. (Hereinafter simply referred to as “plural plate fins 21b”).
- the second cooling core 22 includes a plurality of cooling water tubes 22a, 22a,... (Hereinafter simply referred to as “a plurality of cooling water tubes 22a”) and a plurality of plate-like fins 22b, 22b,. It is simply composed of “a plurality of plate-like fins 22b”).
- the first cooling core 21 and the second cooling core 22 have a plurality of plate-like fins 21b and 22b arranged at predetermined intervals in the cooling water tubes 21a and 22a that are juxtaposed at predetermined intervals so that the openings are on the same plane. It is configured to be attached in layers. That is, the first cooling core 21 and the second cooling core 22 are configured such that the plurality of cooling water thin tubes 21a and 22a pass through the plurality of plate-like fins 21b and 22b stacked with a predetermined gap therebetween. .
- the 1st cooling core 21 and the 2nd cooling core 22 are between the intake water which passes the crevice between a plurality of tabular fins 21b and 22b, and the cooling water which passes the inside of a plurality of cooling water thin tubes 21a and 22a.
- Heat exchange is configured through the plurality of cooling water thin tubes 21a and 22a and the plurality of plate-like fins 21b and 22b.
- the first cooling core 21 is provided in the first air passage 19.
- the first cooling core 21 is configured such that one end of the plurality of cooling water thin tubes 21 a communicates with a cooling water supply chamber 16 d and a cooling water discharge chamber 16 e configured on the first side surface of the cooler case 15.
- the first cooling core 21 is configured such that the other end of the plurality of cooling water thin tubes 21 a communicates with the supply-side storage chamber 18 b and the discharge-side storage chamber 18 c that are configured on the partition wall surface 18.
- the first cooling core 21 has the first air configured on the sixth side surface of the cooler case 15 from the first air supply port 19 a in which the gaps between the plurality of plate-like fins 21 b are configured on the fifth side surface of the cooler case 15. It arrange
- the second cooling core 22 is provided in the second air passage 20.
- the second cooling core 22 is configured such that one end of the plurality of cooling water thin tubes 22 a communicates with a cooling water passage 17 a configured on the second side surface of the cooler case 15.
- the second cooling core 22 is configured such that the other end of the plurality of cooling water thin tubes 22 a communicates with the supply-side storage chamber 18 b and the discharge-side storage chamber 18 c configured on the partition wall surface 18.
- the second cooling core 22 includes the second air configured on the sixth side surface of the cooler case 15 through the second air supply port 20a configured such that the gaps between the plurality of plate-like fins 22b are configured on the fifth side surface of the cooler case 15. It arrange
- the cooling water supply chamber 16d on the first side surface and the supply-side storage chamber 18b on the partition wall 18 are communicated with each other via a part of the cooling water thin tubes 21a among the plurality of cooling water thin tubes 21a of the first cooling core 21.
- the supply-side storage chamber 18b and the cooling water passage 17a on the second side surface are communicated with each other via a part of the cooling water thin tubes 22a among the plurality of cooling water thin tubes 22a of the second cooling core 22.
- the cooling water passage 17 a and the discharge side storage chamber 18 c of the partition wall 18 are communicated with each other through the remaining cooling water tubes 22 a among the plurality of cooling water tubes 22 a of the second cooling core 22.
- the discharge side storage chamber 18c and the first side cooling water discharge chamber 16e communicate with each other through the remaining cooling water thin tubes 21a among the plurality of cooling water thin tubes 21a of the first cooling core 21. That is, the cooling water supply chamber 16d includes the first cooling core 21, the supply side storage chamber 18b, the second cooling core 22, the cooling water passage 17a, the second cooling core 22, the discharge side storage chamber 18c, and the first cooling core 21.
- the cooling water discharge chamber 16e is communicated in order.
- a cooling water thin tube is formed in a substantially U shape, and cooling of the cooling water thin tube 21a of the first cooling core 21 and the second cooling core 22 is performed.
- the water thin tube 22a may be integrally formed. With this configuration, the cooling water can be circulated without forming the cooling water passage 17 a on the second side surface of the intercooler 14.
- the cooling water is supplied from the cooling water supply port 16b to the cooling water supply chamber 16d on the first side surface by the cooling water pump 23 through the cooling water pipe 24a.
- the supplied cooling water flows into the supply side storage chamber 18b of the partition wall 18 through the cooling water tube 21a communicated with the cooling water supply chamber 16d among the plurality of cooling water tubes 21a of the first cooling core 21.
- the cooling water that has flowed into the supply-side storage chamber 18b fills the inside of the supply-side storage chamber 18b, and among the plurality of cooling water tubes 22a of the second cooling core 22, the cooling water capillary that communicates with the supply-side storage chamber 18b. It passes through 22a and flows into the cooling water passage 17a on the second side surface.
- the cooling water that has flowed into the cooling water passage 17a fills the inside of the cooling water passage 17a, and passes through the cooling water thin tubes 22a communicated with the discharge side storage chamber 18c among the plurality of cooling water thin tubes 22a of the second cooling core 22. It passes through and flows into the discharge side storage chamber 18 c of the partition wall surface 18.
- the cooling water that has flowed into the discharge-side storage chamber 18c fills the inside of the discharge-side storage chamber 18c, and among the plurality of cooling water tubes 21a of the first cooling core 21, the cooling water capillary that communicates with the discharge-side storage chamber 18c. It passes through 21a and flows into the cooling water discharge chamber 16e on the first side surface.
- the cooling water flowing into the cooling water discharge chamber 16e is discharged from the cooling water discharge port 16c through the cooling water pipe 24b.
- the intake air supplied from the first air supply port 19 a to the first air passage 19 by the first compressor unit 8 of the first supercharger 6 passes through the gaps between the plurality of plate-like fins 21 b of the first cooling core 21.
- the air is discharged from the first air discharge port 19b (see arrow X).
- the intake air is cooled by contact with the plurality of cooling water thin tubes 21a and the plurality of plate-like fins 21b, thereby being cooled by heat exchange with the cooling water.
- the intake air discharged from the first air discharge port 19b is supplied to the second supercharger 10.
- the intake air supplied from the second air supply port 20a to the second air passage 20 by the second compressor unit 12 of the second supercharger 10 passes through the gaps between the plurality of plate-like fins 22b of the second cooling core 22.
- the air is discharged from the second air discharge port 20b (see arrow Y).
- the intake air is cooled by contact with the plurality of cooling water thin tubes 22a and the plurality of plate-like fins 22b to exchange heat with the cooling water.
- the intake air discharged from the second air discharge port 20b is supplied to the engine 1.
- the intercooler 14 can supply cooling water to the first cooling core 21 and the second cooling core 22 through the cooling water pipe 24a that is a single cooling water path. Therefore, an increase in space necessary for installing the engine 1 can be suppressed. Further, it is not necessary to reduce the capacity of the intercooler 14 in order to secure a space necessary for installing the cooling water pipe. Furthermore, the intercooler 14 can suppress heat exchange generated between the intake air in the first air passage 19 and the intake air in the second air passage 20 by the partition wall 18 in which the cooling water is stored. . That is, the influence of the intake air in the first air passage 19 and the intake air in the second air passage 20 can be suppressed. Accordingly, the intake air supplied from the first compressor unit 8 and the second compressor unit 12 is cooled more stably.
- the engine 1 includes the first compressor unit in the engine 1 in which the first compressor unit 8 and the second compressor unit 12 are provided in the intake device 2 constituting the intake path.
- the intake air pressurized at 8 is cooled by the intercooler 14 and supplied to the second compressor unit 12, and the intake air pressurized by the second compressor unit 12 is cooled by the intercooler 14.
- first air passage 19 and the second air passage 20 intersect with the first cooling core 21 and the second cooling core 22 which are cooling cores that supply cooling water to the inside of the cooler case 15 of the intercooler 14.
- the first compressor section 8 is connected to the first air passage 19
- the second compressor section 12 is connected to the second air passage 20.
- the intake air supplied from the first compressor unit 8 and the second compressor unit 12, which are a plurality of compressors, is cooled by one intercooler 14.
- the increase in the space required for installation of the engine 1 can be suppressed without causing a decrease in the cooling performance of the intercooler 14 by reducing the capacity.
- first air passage 19 and the second air passage 20 are arranged so as to be adjacent to each other via a partition wall surface 18 which is a partition member configured to be hollow.
- the heat insulation between the first air passage 19 and the second air passage 20 in one intercooler 14 is improved, and in the first air passage 19 and the second air passage 20. Cooling of the intake air supplied from the first compressor unit 8 and the second compressor unit 12 which are different compressors is performed stably. Thereby, the increase in the space required for installation of the engine 1 can be suppressed without causing a decrease in the cooling performance of the intercooler 14 by reducing the capacity.
- cooling water is supplied into the partition wall 18.
- cooling water supplied to the first cooling core 21 and the second cooling core 22 is configured to be discharged via the inside of the partition wall surface 18.
- the cooling water in the partition wall surface 18 circulates, whereby the heat insulation between the first air passage 19 and the second air passage 20 in one intercooler 14 is further improved, and the first air Cooling of the intake air supplied from the first compressor unit 8 and the second compressor unit 12 which are different compressors in the passage 19 and the second air passage 20 is performed more stably.
- the increase in the space required for installation of the engine 1 can be suppressed without causing a decrease in the cooling performance of the intercooler 14 by reducing the capacity.
- the intercooler 14 can supply cooling water to the first cooling core 21 and the second cooling core 22 through the cooling water pipe 24a that is a single cooling water path. Therefore, in the installation of the intercooler 14, a space necessary for piping the cooling water pipe 24a is suppressed. Further, the intercooler 14 can suppress heat exchange between the intake air in the first air passage 19 and the intake air in the second air passage 20 by the partition wall 18 in which cooling water is stored. That is, the influence of the intake air in the first air passage 19 and the intake air in the second air passage 20 can be suppressed. Therefore, even if intake air having different temperatures is simultaneously supplied to the first air passage 19 and the second air passage 20, the influence of the temperature between the intake air can be ignored.
- the intercooler 14 provided in the engine 1 according to the first embodiment of the present invention includes a first cooling core 21 and a second cooling core 22 that are cooling cores in which cooling water is supplied into the cooler case 15.
- the first air passage 19 and the second air passage 20, which are a plurality of air passages are configured to intersect the first cooling core 21 and the second cooling core 22 in the cooler case 15.
- the cooling core 21 and the second cooling core 22 are provided with a first air supply port 19a and a second air supply port 20a, and a first air discharge port 19b and a second air discharge port 20b.
- the intercooler 14 has the first cooling core 21 and the second cooling core 22 disposed inside the cooler case 15, and a cooling water supply port 16 b and a cooling water discharge port 16 c are provided on one side of the cooler case 15.
- a first air passage which is provided and has a cooling water passage 17a on the other side surface and is an independent air passage by a partition wall surface 18 which is a partition member disposed between the first cooling core 21 and the second cooling core 22. 19 and the second air passage 20 are configured, a supply-side storage chamber 18b and a discharge-side storage chamber 18c are configured inside the partition wall surface 18, and a plurality of first cooling cores 21 and second cooling cores 22 are included.
- the cooling water thin tubes 21a and 22a are connected to the supply-side storage chamber 18b and the discharge-side storage chamber 18c so that the cooling water can be stored, and the cooling water supplied to the first cooling core 21 from the cooling water supply port 16b. Water is supplied to the second cooling core 22 via the supply-side storage chamber 18b, and the cooling water supplied to the second cooling core 22 is supplied to the first cooling core 21 via the discharge-side storage chamber 18c. It is discharged from the discharge port 16c.
- the engine 1 including the first supercharger 6 and the second supercharger 10 as a second embodiment of the engine according to the present invention will be described with reference to FIG.
- the same points as those of the above-described embodiments will not be specifically described, and different portions will be mainly described.
- the engine 1 is connected to a first supercharger 6, a second supercharger 10, and an intercooler 25. Specifically, the engine 1 is connected to the intercooler 25 via the intake pipe 2 d of the intake device 2.
- the first compressor section 8 is connected to the first air passage 26 of the intercooler 25 through the intake pipe 2a.
- the second compressor section 12 is connected to a second air passage 27a of an intercooler 25 described later via an intake pipe 2c.
- the intercooler 25 includes a first air passage 26, a second air passage 27a, a third air passage 27b, and a fourth air passage 27c in the interior thereof.
- the first cooling core 28 is provided in the first air passage 26.
- the second cooling core 29a is provided in the second air passage 27a.
- the third cooling core 29b is provided in the third air passage 27b.
- the fourth cooling core 29c is provided in the fourth air passage 27c.
- the first air passage 26, the second air passage 27a, the third air passage 27b, and the fourth air passage 27c do not have to be adjacent in the same direction, and according to the shape of the intercooler 25. Can be arranged. That is, the shape of the intercooler can be determined according to the installation space of the engine. Further, the number of air passages is not limited to this embodiment.
- the first air passage 26 in the shape of the intercooler 25 is connected to the second compressor portion 12 of the second supercharger 10 via the intake pipe 2b.
- the second air passage 27a is connected to the third air passage 27b through the intake pipe 2e.
- the third air passage 27b is connected to the fourth air passage 27c via the intake pipe 2f.
- the fourth air passage 27c is connected to the engine 1 via the intake pipe 2d.
- the intake air discharged from the first supercharger 6 is supplied to the first air passage 26 of the intercooler 25 through the intake pipe 2a.
- the intake air is cooled in the first air passage 26.
- the intake air supplied to the first air passage 26 is discharged from the intercooler 25 through the intake pipe 2b.
- the intake air discharged from the second supercharger 10 is supplied to the second air passage 27a of the intercooler 25 through the intake pipe 2c.
- the intake air is cooled in the second air passage 27a.
- the intake air supplied to the second air passage 27a is supplied to the third air passage 27b via the intake pipe 2e.
- the intake air is further cooled in the third air passage 27b.
- the intake air supplied to the third air passage 27b is supplied to the fourth air passage 27c via the intake pipe 2f.
- the intake air is further cooled in the fourth air passage 27c.
- the intake air supplied to the fourth air passage 27c is discharged from the intercooler 25 via the intake pipe 2d.
- the intake air discharged from the intercooler 25 is supplied to the engine 1 through the intake pipe 2d.
- the engine 1 includes the first cooling core 28, the second cooling core 29a, the third cooling core 29b, and the cooling water supplied to the inside of the cooler case 15 of the intercooler 25.
- a fourth cooling core 29c is arranged, and a first air passage 26, a second air passage 27a, a third air passage 27b, and a fourth air passage 27c, which are a plurality of air passages, are configured so as to intersect with each cooling core,
- the intake air pressurized by the first compressor unit 8 is supplied to the first air passage 26 which is one or more of the plurality of air passages, and the intake air pressurized by the second compressor unit 12 is a plurality of air passages.
- it is configured to be supplied to the second air passage 27a, the third air passage 27b and the fourth air passage 27c, which are air passages to which the intake air pressurized by the first compressor unit 8 is not supplied. Is shall.
- the intake air supplied from the first compressor unit 8 and the second compressor unit 12, which are a plurality of compressors, is cooled by the single intercooler 25 a plurality of times according to the shape of the intercooler 25.
- the single intercooler 25 without increasing the cooling performance of the intercooler 25, it is possible to suppress an increase in space necessary for installing the engine 1.
- the present invention can be used for the technology of an engine with a two-stage supercharger.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Geometry (AREA)
- Supercharger (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Abstract
Description
2 吸気装置
8 第1コンプレッサ
12 第2コンプレッサ
14 インタークーラー
15 クーラーケース
19 第1空気通路
19a 第1空気供給口
19b 第1空気排出口
20 第2空気通路
20a 第2空気供給口
20b 第2空気排出口
21 第1冷却コア
22 第2冷却コア
Claims (7)
- 吸気経路に第1コンプレッサ部と第2コンプレッサ部とが設けられたエンジンにおいて、
第1コンプレッサ部で加圧された吸気をインタークーラーで冷却して第2コンプレッサ部に供給するとともに、第2コンプレッサ部で加圧された吸気を前記インタークーラーで冷却するように構成されるエンジン。 - 前記インタークーラーのクーラーケースの内部に冷却水が供給される冷却コアと交差するように第1空気通路と第2空気通路とが構成され、
前記第1コンプレッサ部が第1空気通路に接続され、前記第2コンプレッサ部が第2空気通路に接続される請求項1に記載のエンジン。 - 前記第1空気通路と前記第2空気通路とが中空に構成される仕切り部材を介して隣接するように配置される請求項2に記載のエンジン。
- 前記仕切り部材の内部に冷却水が供給される請求項3に記載のエンジン。
- 前記冷却コアに供給された冷却水が前記仕切り部材の内部を経由して排出されるように構成される請求項3又は請求項4に記載のエンジン。
- 前記冷却コアが第1冷却コアと第2冷却コアとから構成され、
前記仕切り部材が第1冷却コアと第2冷却コアとの間に配置され、
前記クーラーケースの一側面に冷却水供給口と冷却水排出口とが設けられ、他側面に冷却水通路が構成され、
仕切り部材の内部に供給側貯留室と排出側貯留室とが構成され、第1冷却コアと第2冷却コアとが有する複数の冷却管が供給側貯留室と排出側貯留室とに接続されて冷却水が貯留可能に構成され、冷却水供給口から第1冷却コアに供給された冷却水が供給側貯留室を介して第2冷却コアに供給され、第2冷却コアに供給された冷却水が排出側貯留室を介して第1冷却コアに供給され、冷却水排出口から排出される請求項5に記載のエンジン。 - 前記インタークーラーのクーラーケースの内部に冷却水が供給される冷却コアが配置され、冷却コアと交差するように複数の空気通路が構成され、
前記第1コンプレッサ部で加圧された吸気が複数の空気通路のうち一以上の空気通路に供給され、前記第2コンプレッサ部で加圧された吸気が複数の空気通路のうち第1コンプレッサ部で加圧された吸気が供給されていない空気通路に供給されるように構成される請求項1に記載のエンジン。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP14880396.8A EP3103985A4 (en) | 2014-01-30 | 2014-01-30 | Engine |
CN201480074557.8A CN105960514A (zh) | 2014-01-30 | 2014-01-30 | 发动机 |
PCT/JP2014/052113 WO2015114777A1 (ja) | 2014-01-30 | 2014-01-30 | エンジン |
US15/115,793 US20170022884A1 (en) | 2014-01-30 | 2014-01-30 | Engine |
KR1020167023072A KR20160111505A (ko) | 2014-01-30 | 2014-01-30 | 엔진 |
Applications Claiming Priority (1)
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PCT/JP2014/052113 WO2015114777A1 (ja) | 2014-01-30 | 2014-01-30 | エンジン |
Publications (1)
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WO2015114777A1 true WO2015114777A1 (ja) | 2015-08-06 |
Family
ID=53756389
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PCT/JP2014/052113 WO2015114777A1 (ja) | 2014-01-30 | 2014-01-30 | エンジン |
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US (1) | US20170022884A1 (ja) |
EP (1) | EP3103985A4 (ja) |
KR (1) | KR20160111505A (ja) |
CN (1) | CN105960514A (ja) |
WO (1) | WO2015114777A1 (ja) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
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GB2576883B (en) * | 2018-09-04 | 2021-06-16 | Caterpillar Motoren Gmbh & Co | Two-stage turbocharged internal combustion engine |
GB2576882B (en) | 2018-09-04 | 2021-06-16 | Caterpillar Motoren Gmbh & Co | Two-staged turbocharger |
FR3087851B1 (fr) * | 2018-10-26 | 2021-01-29 | Valeo Systemes De Controle Moteur | Circuit d'admission pour moteur a combustion interne comportant un compresseur de suralimentation |
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JPS592926U (ja) * | 1982-06-29 | 1984-01-10 | 日野自動車株式会社 | 2段過給デイ−ゼル機関における給気冷却装置 |
JPS60101223A (ja) * | 1983-11-08 | 1985-06-05 | Yanmar Diesel Engine Co Ltd | 2段過給式内燃機関 |
JPS60120229U (ja) * | 1984-01-21 | 1985-08-14 | 川崎重工業株式会社 | 二段過給機関 |
JPH0666146A (ja) | 1992-08-20 | 1994-03-08 | Yanmar Diesel Engine Co Ltd | 二段過給機付きエンジン |
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JP2006090205A (ja) * | 2004-09-24 | 2006-04-06 | Hino Motors Ltd | 2段ターボ過給装置 |
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GB182787A (ja) * | 1921-07-09 | 1923-05-10 | Augustus Rateau | |
US6293264B1 (en) * | 1997-10-30 | 2001-09-25 | James K. Middlebrook | Supercharger aftercooler for internal combustion engines |
DE10302708A1 (de) * | 2003-01-23 | 2004-07-29 | Behr Gmbh & Co. Kg | Vorrichtung zum Austausch von Wärme |
DE10328746A1 (de) * | 2003-06-25 | 2005-01-13 | Behr Gmbh & Co. Kg | Vorrichtung zum mehrstufigen Wärmeaustausch und Verfahren zur Herstellung einer derartigen Vorrichtung |
JP4416671B2 (ja) * | 2005-01-24 | 2010-02-17 | 株式会社ティラド | 多流体熱交換器 |
FR2886340B1 (fr) * | 2005-05-31 | 2010-11-12 | Valeo Systemes Thermiques | Refroidisseur d'air d'admission pour un moteur thermique turbocompresse a deux etages de suralimentation et circuit d'air correspondant |
-
2014
- 2014-01-30 US US15/115,793 patent/US20170022884A1/en not_active Abandoned
- 2014-01-30 WO PCT/JP2014/052113 patent/WO2015114777A1/ja active Application Filing
- 2014-01-30 EP EP14880396.8A patent/EP3103985A4/en not_active Withdrawn
- 2014-01-30 KR KR1020167023072A patent/KR20160111505A/ko not_active Application Discontinuation
- 2014-01-30 CN CN201480074557.8A patent/CN105960514A/zh active Pending
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JPS592926U (ja) * | 1982-06-29 | 1984-01-10 | 日野自動車株式会社 | 2段過給デイ−ゼル機関における給気冷却装置 |
JPS60101223A (ja) * | 1983-11-08 | 1985-06-05 | Yanmar Diesel Engine Co Ltd | 2段過給式内燃機関 |
JPS60120229U (ja) * | 1984-01-21 | 1985-08-14 | 川崎重工業株式会社 | 二段過給機関 |
JPH0666146A (ja) | 1992-08-20 | 1994-03-08 | Yanmar Diesel Engine Co Ltd | 二段過給機付きエンジン |
JP2003239752A (ja) * | 2002-02-14 | 2003-08-27 | Avl List Gmbh | 内燃機関の冷却システム |
JP2006090205A (ja) * | 2004-09-24 | 2006-04-06 | Hino Motors Ltd | 2段ターボ過給装置 |
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Also Published As
Publication number | Publication date |
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EP3103985A4 (en) | 2017-09-06 |
CN105960514A (zh) | 2016-09-21 |
EP3103985A1 (en) | 2016-12-14 |
US20170022884A1 (en) | 2017-01-26 |
KR20160111505A (ko) | 2016-09-26 |
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