WO2019153494A1 - Système de refroidissement pour moteur diesel multicylindre en v - Google Patents

Système de refroidissement pour moteur diesel multicylindre en v Download PDF

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Publication number
WO2019153494A1
WO2019153494A1 PCT/CN2018/083190 CN2018083190W WO2019153494A1 WO 2019153494 A1 WO2019153494 A1 WO 2019153494A1 CN 2018083190 W CN2018083190 W CN 2018083190W WO 2019153494 A1 WO2019153494 A1 WO 2019153494A1
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WO
WIPO (PCT)
Prior art keywords
intercooler
temperature water
cylinder block
shaped cylinder
diesel engine
Prior art date
Application number
PCT/CN2018/083190
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English (en)
Chinese (zh)
Inventor
黄第云
沈捷
吴可
黄永仲
Original Assignee
广西玉柴机器股份有限公司
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Publication of WO2019153494A1 publication Critical patent/WO2019153494A1/fr

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    • 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
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M1/00—Pressure lubrication
    • F01M1/02—Pressure lubrication using lubricating pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M5/00—Heating, cooling, or controlling temperature of lubricant; Lubrication means facilitating engine starting
    • F01M5/002—Cooling
    • 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
    • F01P3/20—Cooling circuits not specific to a single part of engine or machine
    • 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
    • F01P5/00—Pumping cooling-air or liquid coolants
    • F01P5/10—Pumping liquid coolant; Arrangements of coolant pumps
    • 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
    • F01P7/00—Controlling of coolant flow
    • F01P7/14—Controlling of coolant flow the coolant being liquid
    • F01P7/16—Controlling of coolant flow the coolant being liquid by thermostatic control
    • F01P7/165—Controlling of coolant flow the coolant being liquid by thermostatic control characterised by systems with two or more loops
    • 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
    • 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
    • F02B29/0462—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
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/10006—Air intakes; Induction systems characterised by the position of elements of the air intake system in direction of the air intake flow, i.e. between ambient air inlet and supply to the combustion chamber
    • 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
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/1015—Air intakes; Induction systems characterised by the engine type
    • F02M35/10157—Supercharged engines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M1/00—Pressure lubrication
    • F01M1/12—Closed-circuit lubricating systems not provided for in groups F01M1/02 - F01M1/10
    • F01M2001/123—Closed-circuit lubricating systems not provided for in groups F01M1/02 - F01M1/10 using two or more pumps
    • 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
    • F01P5/00—Pumping cooling-air or liquid coolants
    • F01P5/10—Pumping liquid coolant; Arrangements of coolant pumps
    • F01P2005/105—Using two or more pumps
    • 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
    • F01P2060/00—Cooling circuits using auxiliaries
    • F01P2060/02—Intercooler
    • 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
    • F01P2060/00—Cooling circuits using auxiliaries
    • F01P2060/04—Lubricant cooler
    • 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
    • F02B75/00—Other engines
    • F02B75/16—Engines characterised by number of cylinders, e.g. single-cylinder engines
    • F02B75/18—Multi-cylinder engines
    • F02B75/22—Multi-cylinder engines with cylinders in V, fan, or star arrangement
    • 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 the field of engine cooling, and more particularly to a cooling system for a V-type multi-cylinder diesel engine.
  • High-power high-speed diesel engines are generally used in generator stations, petrochemicals, high-speed light ships and ships. Basically, it is a four-stroke machine. Since the high-power high-speed diesel engine requires very high single-machine power, its strong load requirement is higher than that of the general diesel engine. For foreign advanced high-speed diesel engines, the average effective pressure is up to 3 MPa, and the highest explosion pressure is the highest. Up to 20MPa. Because high-power high-speed diesel engines require high power and high torque, they have high requirements for several important critical systems, such as cylinder assembly systems, power systems, diesel systems, cooling systems, and lubrication systems.
  • the present invention provides a cooling system for a V-type multi-cylinder diesel engine including a V-shaped cylinder block and a plurality of single cylinder heads mounted at a cylinder port portion of the V-shaped cylinder block.
  • the V-shaped cylinder block and the plurality of single cylinder caps have a cold water jacket
  • the V-type multi-cylinder diesel engine further includes a lubrication system
  • the lubrication system includes an oil cooler
  • the cooling system includes a high temperature water circulation loop and a low temperature water circulation loop
  • the low temperature water circulation loop includes The radiator and the low temperature water pump are used to cool the oil cooler.
  • the high temperature water circulation circuit includes a front radiator and a high temperature water pump, and the high temperature water circulation circuit is used for cooling the V-shaped cylinder block and the plurality of single cylinder heads.
  • the V-type multi-cylinder diesel engine further includes an intake system including a left intake pipe, a right intake pipe, a left supercharger, a right supercharger, a left intercooler, and a right intercooler
  • the left intercooler and the right intercooler are respectively installed on both sides of the rear end of the V-shaped cylinder block, and the left supercharger and the right supercharger are installed in the left intercooler and the right side, respectively.
  • the left air booster is connected to the left air cleaner
  • the right supercharger is connected with the right air filter
  • the left intake pipe and The right intake pipe is respectively connected to the left intercooler and the right intercooler, and is disposed at the upper end positions of the V-shaped cylinder block, and the low temperature water circulation circuit is simultaneously used for cooling the left intercooler and the right intercooler.
  • the cryopump is disposed at a position of the front end of the V-shaped cylinder block near the oil pump
  • the high temperature water pump is disposed at a position of the front end of the V-shaped cylinder block near the diesel distributor, the low temperature water pump, the high temperature water pump, the oil pump, and the diesel distributor
  • the crankshaft pulley drives the cryogenic water pump and the high temperature water pump respectively, and the coolant flowing through the V-shaped cylinder block and the plurality of individual cylinder heads enters the front radiator, the water outlet manifold and the front radiator by the water outlet manifold.
  • thermostats There are three thermostats connected in parallel, the thermostat is arranged in the upper right position of the front end of the V-shaped cylinder block, the thermostat is connected to the front radiator through the radiator water pipe, and the radiator water pipe is arranged in the V-shaped cylinder block. top.
  • the low temperature water circulation circuit comprises a low temperature water distributor fixed at a front end of the V-shaped cylinder block near the crank pulley, and the low temperature cooling water in the low temperature water pump is distributed to the oil cooler and the left side cold through the low temperature water distributor. And the right intercooler.
  • the left intercooler and the right intercooler are square housings, the inside of the square housing has an air circulation cavity, and the square housing around the air circulation cavity is provided with a coolant flow channel, and the square housing An additional housing is arranged on the front side, and an intermediate housing is arranged between the left intercooler and the right intercooler, and the two sides of the intermediate housing are respectively attached to the left intercooler and the right intercooler.
  • the inner end faces are connected together, and the additional casing and the intermediate casing are provided with a circulation passage communicating with the coolant flow passages inside the left intercooler and the right intercooler, and the water inlet and the outlet of the circulation passage are arranged in the middle On the front end surface of the casing, the water inlet and the water outlet are connected to the low temperature water distributor through a water pipe.
  • the invention has the following beneficial effects: separate cooling with high and low temperature water, low temperature water cooling oil cooler, high temperature water cooling cylinder block and cylinder head, and the cooling system belongs to a forced closed circulating water cooling system. Classification of high and low temperature components reduces cooling air temperature and oil temperature while reducing heat loss and making the engine more fuel efficient.
  • FIG. 1 is a schematic structural view of a V-shaped cylinder block of a V-type multi-cylinder diesel engine according to the present invention
  • FIG. 2 is a schematic structural view of a single cylinder head disposed on a V-shaped cylinder block of a V-type multi-cylinder diesel engine according to the present invention
  • Figure 3 is a structural view of a whole machine of a V-type multi-cylinder diesel engine according to the present invention.
  • Figure 4 is a cooling schematic diagram of a cooling system of a V-type multi-cylinder diesel engine according to the present invention.
  • Figure 5 is a structural view of an intercooler in a cooling system of a V-type multi-cylinder diesel engine according to the present invention.
  • a cooling system of a V-type multi-cylinder diesel engine according to an embodiment of the present invention is mainly designed to meet the cooling needs of a high-power high-speed diesel engine.
  • the V-type multi-cylinder diesel engine of the present embodiment has the characteristics of high power and large torque.
  • the V-type multi-cylinder diesel engine can adopt the electronic control unit pump technology, and the injection pressure is large, and the fuel injection amount can be accurately and dynamically adjusted to ensure the diesel engine at different loads. In the case, the atomization is good, the combustion is sufficient, the transient speed regulation is good, the loading ability is strong, and the fuel consumption is low.
  • the design of one cover per cylinder has a high cylinder head strength.
  • a 12-cylinder V-shaped diesel engine is taken as an example to describe the cooling system of this embodiment in detail:
  • a V-type multi-cylinder diesel engine includes a V-shaped cylinder block 100, a plurality of unitary cylinder heads 200, a diesel supply system, an intake system, and a lubrication system.
  • the V-shaped cylinder block 100 is provided with a plurality of two rows of cylinder holes arranged in a V shape.
  • the angle between the two rows of cylinder bores of the V-shaped cylinder block 100 is 60 degrees, and the V-shape outside the two rows of cylinder bores.
  • the cylinder block 100 is respectively cast with a sleeve 101 corresponding to the number of cylinder bores, and the plurality of single cylinder heads 200 are respectively mounted on the cylinder mouth portion of the V-shaped cylinder block 100, the V-shaped cylinder block and the plurality of single cylinder heads.
  • the diesel fuel supply system includes a plurality of electric control unit pumps 14, a diesel tank and a fuel supply pipeline, and a plurality of electric control unit pumps 14 are respectively installed in the sleeve 101, and the plurality of electric control unit pumps 14 are respectively used Controlling the injection of diesel into each cylinder, the diesel tank and the oil supply pipeline are connected, the oil supply pipeline includes a left oil pipe and a right oil pipe, and the left oil pipe and the right oil pipe respectively pass a vertical high pressure oil pipe and a plurality of electric control monomers The pump is connected.
  • the lubrication system includes an oil pan, a pre-supply pump 7, an oil pump 5, an oil filter 2 and an oil cooler 1, the oil pan is disposed at the bottom of the V-shaped cylinder block 100, and the pre-supply pump 7 is disposed in the oil pan On the front side, the oil pump 5 is disposed at the lower left position of the front end of the V-shaped cylinder block 100, and the oil filter 2 and the oil cooler 1 are both disposed at the upper left position of the front end of the V-shaped cylinder block 100.
  • the cooling system of the V-type multi-cylinder diesel engine of the embodiment includes a high-temperature water circulation loop and a low-temperature water circulation loop, and the low-temperature water circulation loop includes a rear radiator and a low-temperature water pump 4, and the low-temperature water circulation loop is used for cooling.
  • the oil cooler 1, the high temperature water circulation circuit includes a front radiator and a high temperature water pump 9, and the high temperature water circulation circuit is used to cool the V-shaped cylinder block 100 and the plurality of unit cylinder heads.
  • the V-type multi-cylinder diesel engine of the present embodiment further includes an air intake system, and the intake pipe, the supercharger, the intercooler, the air cleaner, and the exhaust pipe appearing in FIG. 3 are partially labeled.
  • the intake system includes a left intake pipe, a right intake pipe 15, a left supercharger, a right supercharger 18, a left intercooler, and a right intercooler 16, a left intercooler, and a right side.
  • the coolers 16 are respectively installed on both sides above the rear end of the V-shaped cylinder block 100. Specifically, the lower side of the left intercooler and the right intercooler 16 are provided with brackets 506, the left intercooler and the right side.
  • the cooler 16 is fixed to both sides above the rear end of the V-shaped cylinder block 100 via brackets 506, and the left side supercharger and the right side supercharger 18 are correspondingly mounted above the left intercooler and the right intercooler 16 and Both protrude from the top of the V-shaped cylinder block 100, a left air cleaner is connected to the left supercharger, and a right air cleaner 17 is connected to the right supercharger 18, and the left intake pipe and the right side are connected.
  • the intake pipe 15 is disposed at the upper end positions of both sides of the V-shaped cylinder block 100 after being connected to the left intercooler and the right intercooler 16, respectively.
  • the cooling system of the V-type multi-cylinder diesel engine further includes a corresponding exhaust system
  • the exhaust system includes an exhaust pipe 21 (two left and right), and the exhaust pipe 21 (two left and right) corresponding to the left side
  • the upper and the supercharger are connected, and the exhaust pipe 21 (the left and the right) are disposed at the top intermediate position of the V-shaped cylinder block 100.
  • the low temperature water circulation circuit of the cooling system of the present embodiment is simultaneously used to cool the left intercooler and the right intercooler.
  • the cryopump 4 is disposed at a position near the front end of the V-shaped cylinder block 100 near the oil pump 5, and the high temperature water pump 9 is disposed at the front end of the V-shaped cylinder block 100, the high temperature water pump 9 and The low temperature water pump 4 is respectively located on both sides of the crank pulley, and the low temperature water pump 4, the high temperature water pump 9, the oil pump 5 and the oil pump 8 are arranged around the crank pulley (the silicone shock absorber 6 is arranged on the crank pulley), and the crank pulley drives the low temperature respectively.
  • the low temperature water circulation circuit includes a low temperature water distributor 3 fixed at a position near the front end of the V-shaped cylinder block 100 near the crank pulley, and the purpose of providing the low temperature water distributor 3 is
  • the low temperature water circulation circuit can simultaneously cool the oil cooler 1 and the two intercoolers. So far, as shown in FIG. 4, the present embodiment proposes separate cooling with high and low temperature water, low temperature water cooling of two intercoolers and oil cooler 1, high temperature water cooling cylinder block and cylinder head, and the cooling system belongs to a forced closed cycle.
  • the coolant should be anti-freeze and anti-rust coolant.
  • the coolant pushed out by the high-temperature water pump enters the cooling water jacket of the cylinder block and the cylinder head. After cooling the cylinder block and the cylinder head to the water outlet manifold, the coolant flows into the radiator through the thermostat.
  • the thermostat is installed at the end of the water outlet pipe, and the thermostat automatically controls the temperature function. When the coolant temperature is greater than 75 ° C, the thermostat is turned on. When the coolant temperature is greater than 85 ° C, the thermostat is fully opened, and the cooling is performed at this time. The liquid enters the radiator and flows back to the pump. If the coolant temperature is less than 75 ° C, it does not need to be cooled by the radiator to directly flow to the pump to go back to the cooling cycle.
  • the cryogenic water pump cools the two intercoolers and the oil cooler and then returns to the radiator for heat dissipation.
  • This high-temperature and low-temperature component is classified and cooled to reduce intake air temperature and oil temperature while reducing heat loss and making the engine more fuel efficient.
  • the present embodiment provides a specific intercooler structure.
  • the left intercooler and the right intercooler are square housings 501, and the interior of the square housing 501 has The air circulation cavity is provided with a coolant flow passage in a square casing around the air circulation cavity, and the front side of the square casing 501 is provided with an additional casing 502, and a left intercooler and a right intercooler are disposed between The intermediate casing 503, the two sides of the intermediate casing 503 are respectively connected with the inner end faces of the additional casing 502 of the left intercooler and the right intercooler, and the additional casing 502 and the intermediate casing 503 are provided with A circulation passage communicating with the coolant flow passage inside the left intercooler and the right intercooler, a water inlet 504 and a water outlet 505 of the circulation passage are disposed on the front end surface of the intermediate casing 503, the water inlet 504 and the water outlet 505
  • the water pipe is connected to the low temperature water distributor
  • an air inlet flange 507 extends upwardly on the inner side wall of the square housing 501
  • an air outlet flange 508 extends forwardly on the outer side wall of the square housing 501
  • the left side supercharger and the right side supercharger The device 18 is correspondingly mounted above the left intercooler and the right intercooler 16, and the air intake flange 507 is conveniently connected to the intake port of the supercharger, and the left intake pipe and the right intake pipe 15 are respectively left and left.
  • the air outlet flanges 508 on the outer side walls of the side intercooler and the right intercooler 16 are placed on both sides of the V-shaped cylinder block 100.
  • the cooling system of the V-type multi-cylinder diesel engine of the present embodiment is cooled by high and low temperature water, so that the high temperature and low temperature components are classified and cooled, and the intake air temperature and the oil temperature can be lowered, and the heat energy loss is reduced, and the engine is more fuel efficient and satisfies the large High-power, high-torque cooling requirements for high-speed diesel engines.

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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)
  • Lubrication Of Internal Combustion Engines (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
  • Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)

Abstract

L'invention concerne un système de refroidissement pour un moteur diésel multicylindre en V. Le moteur diesel multicylindre en V comprend un bloc-cylindres en V (100) et une pluralité de culasses de cylindre séparées (200) montées sur des parties d'orifice de cylindre du bloc-cylindres en V (100). Des chemises d'eau de refroidissement sont disposées dans le bloc-cylindres en V (100) et la pluralité de culasses de cylindre séparées (200). Le moteur diesel multicylindre en V comprend en outre un système de lubrification. Le système de lubrification (23) comprend un refroidisseur d'huile moteur (1). Le système de refroidissement comprend une boucle de circulation d'eau à haute température et une boucle de circulation d'eau à basse température. La boucle de circulation d'eau à basse température comprend un radiateur arrière et une pompe à eau à basse température (4), et est utilisée pour refroidir le refroidisseur d'huile moteur (1). La boucle de circulation d'eau à haute température comprend un radiateur avant et une pompe à eau à haute température (9), et est utilisée pour refroidir le bloc-cylindres en V (100) et la pluralité de culasses de cylindre séparées (200). Selon le système de refroidissement, les composants à haute température et à basse température sont refroidis séparément, réduisant ainsi la température de l'air d'admission et la température de l'huile du moteur, réduisant la perte de chaleur, et rendant le moteur plus efficace en carburant.
PCT/CN2018/083190 2018-02-07 2018-04-16 Système de refroidissement pour moteur diesel multicylindre en v WO2019153494A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201810122093.3A CN108223096B (zh) 2018-02-07 2018-02-07 V型多缸柴油机的冷却系统
CN201810122093.3 2018-02-07

Publications (1)

Publication Number Publication Date
WO2019153494A1 true WO2019153494A1 (fr) 2019-08-15

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CN (1) CN108223096B (fr)
WO (1) WO2019153494A1 (fr)

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Publication number Priority date Publication date Assignee Title
CN110159466A (zh) * 2019-07-03 2019-08-23 广西玉柴机器股份有限公司 V型多缸柴油机的进气系统
CN112682164B (zh) * 2020-12-22 2022-10-21 中国北方发动机研究所(天津) 一种柴油机集成式中冷器
CN113738487B (zh) * 2021-09-10 2022-09-23 潍柴动力股份有限公司 发动机进排气系统及具有其的车辆
CN115059536B (zh) * 2022-05-26 2024-03-01 中国第一汽车股份有限公司 一种v型发动机智能控制冷却系统及控制方法
CN115234365B (zh) * 2022-08-02 2024-05-14 中船动力研究院有限公司 一种船用高速发动机

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