WO2015192636A1 - Dispositif de rayonnement de chaleur pour moteur, système de refroidissement et procédé pour moteur - Google Patents

Dispositif de rayonnement de chaleur pour moteur, système de refroidissement et procédé pour moteur Download PDF

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Publication number
WO2015192636A1
WO2015192636A1 PCT/CN2014/095653 CN2014095653W WO2015192636A1 WO 2015192636 A1 WO2015192636 A1 WO 2015192636A1 CN 2014095653 W CN2014095653 W CN 2014095653W WO 2015192636 A1 WO2015192636 A1 WO 2015192636A1
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WO
WIPO (PCT)
Prior art keywords
temperature
engine
radiator
coolant
variable
Prior art date
Application number
PCT/CN2014/095653
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English (en)
Chinese (zh)
Inventor
孙韶阳
杨洁
李国红
Original Assignee
北汽福田汽车股份有限公司
北京智科投资管理有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by 北汽福田汽车股份有限公司, 北京智科投资管理有限公司 filed Critical 北汽福田汽车股份有限公司
Priority to DE112014006749.0T priority Critical patent/DE112014006749T5/de
Publication of WO2015192636A1 publication Critical patent/WO2015192636A1/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
    • F01P7/00—Controlling of coolant flow
    • F01P7/02—Controlling of coolant flow the coolant being cooling-air
    • F01P7/10—Controlling of coolant flow the coolant being cooling-air by throttling amount of air flowing through liquid-to-air heat exchangers
    • F01P7/12—Controlling of coolant flow the coolant being cooling-air by throttling amount of air flowing through liquid-to-air heat exchangers by thermostatic control

Definitions

  • the invention belongs to the technical field of vehicles, and in particular to a heat sink for an engine, an engine cooling system and a method.
  • the engine generates a large amount of heat during operation, which causes the engine temperature to rise, which seriously affects the performance of the engine.
  • a cooling system is required for the engine.
  • a conventional engine cooling system generally includes a radiator 1 and a cooling fan 2, and a cooling fan 2 is disposed on the radiator 1, and the radiator 1 is disposed on a front windward surface of the front end of the nacelle.
  • the specific structure of the radiator 1 is generally composed of a water inlet chamber 12, a core body 11 and a water outlet chamber 13, and the water inlet chamber 12 and the water outlet chamber 13 of the radiator are respectively connected to the cooling water passages in the engine 3.
  • the thermostat 4 is generally disposed on the communication pipe between the inlet chamber 12 of the radiator and the cooling water passage in the engine, when the temperature of the coolant in the engine is higher than the preset At the temperature, the thermostat 4 is turned on, and the coolant in the engine 3 flows to the radiator 1 to dissipate heat. Since the radiator has no temperature control function, if the thermostat 4 fails, the engine is too cold.
  • the vehicle ECU Electronic Control Unit
  • the vehicle ECU Electronic Control Unit
  • the cooling fan 2 is turned on to the radiator 1 Ventilation and heat dissipation.
  • the present invention aims to solve at least one of the technical problems existing in the prior art. In view of this, it is an object of the present invention to provide a heat sink for an engine that can reduce the warm-up time of the engine in a low temperature environment.
  • Another object of the present invention is to provide an engine cooling system having the above described heat sink.
  • a heat dissipation device for an engine includes: a heat sink, the radiator package a core body, a water inlet chamber and a water outlet chamber, the core body being connected between the water inlet chamber and the water outlet chamber; a variable grid, a variable grid connection and covering the heat sink, a variable grid A grid opening angle control member is disposed on the grid, and the grid opening angle control member is configured to close the variable grid when the engine coolant temperature is lower than the first preset temperature.
  • the vane of the variable grille can be completely closed to prevent the outside atmosphere. Blowing on the engine, reducing the heat loss of the engine, ensuring the working environment temperature of the engine, greatly shortening the warm-up time of the engine, especially in the cold northern regions, the effect is more obvious; when the engine needs to be cooled, it can be pulled
  • the grille opens the angle control component to fully or partially open the variable grille to ventilate the heat sink.
  • the heat sink further includes: an actuator coupled to the grille opening angle control member of the variable grille, the actuator being configured to cool the liquid in the outlet according to the radiator The temperature controls the opening angle of the variable grid.
  • the actuator includes: a housing fixed in a water outlet of the heat sink; a jack, the jack is disposed in the housing, and one end of the jack
  • the casing is fixedly connected to the inner wall of the casing, and the other end is a free end
  • the temperature sensing unit casing is provided with a sealing space for sealing paraffin, and the temperature sensing unit casing is further provided with a cavity that is open at one end, the temperature sensing unit housing is connected to the grill opening angle control component
  • a flexible tube is disposed in the tunnel and sleeved outside the top rod
  • an elastic component The elastic member is disposed between the temperature sensing unit housing and an inner wall of the housing.
  • the actuator includes: a temperature sensor for collecting the temperature of the coolant in the water outlet of the radiator; a stepping motor, the output end of the stepping motor and the grill opening angle
  • the control unit is connected to the first controller, the first controller is configured to receive the temperature collected by the temperature sensor, and control the rotation of the stepping motor when the temperature of the received coolant is greater than or equal to the second preset temperature, thereby controlling The variable grille opens.
  • variable grille includes a first bracket, a second bracket, a plurality of blades and a rotating shaft, and two ends of each of the blades are respectively rotatably connected to the first bracket and the second bracket through a rotating shaft, and the grill opening angle is
  • the control unit is coupled to each of the vanes.
  • An engine cooling system includes a thermostat and a heat sink according to the above first embodiment of the present invention, the thermostat being disposed between the water inlet chamber of the radiator and the cooling passage in the engine On the connecting pipe, the opening temperature of the variable grille in the heat sink is greater than the opening temperature of the thermostat.
  • the engine cooling system further includes: a cooling fan fixed to the heat sink; and a collector for collecting a temperature of the coolant in the water outlet of the radiator a second controller, the second controller is configured to receive a temperature of the coolant in the water outlet, and cool in the water outlet
  • the cooling fan is turned on when the temperature of the liquid is greater than or equal to the third preset temperature.
  • An engine cooling method according to an embodiment of the third aspect of the present invention, wherein the engine is cooled by an engine cooling system according to an embodiment of the second aspect of the present invention, the engine cooling method comprising the step of: cooling the temperature of the coolant in the engine is less than At a preset temperature, the thermostat, the cooling fan, and the variable grille that has been previously placed on the heat sink are turned off.
  • the engine cooling method further includes the steps of: turning on the thermostat when the temperature of the coolant in the engine is greater than or equal to the first preset temperature; and the temperature of the coolant in the outlet of the radiator is greater than or equal to the first
  • the variable grille is opened; when the temperature of the coolant in the water outlet of the radiator is greater than or equal to the third preset temperature, the cooling fan mounted on the heat sink is turned on; the first preset temperature, the second preset The temperature and the third preset temperature are sequentially increased.
  • the step of opening the variable grid further includes: controlling the variable grid according to the temperature of the coolant in the outlet of the radiator The opening angle.
  • the engine cooling method of the embodiment of the present invention when the engine is warmed up, if the ambient temperature is low, the blades of the variable grille can be completely closed, the outside atmosphere is prevented from being blown on the engine, and the heat loss of the engine is reduced, thereby ensuring The operating temperature of the engine greatly shortens the warm-up time of the engine, especially in the cold northern regions.
  • the thermostat can be turned on to make the radiator heat the engine coolant.
  • the angle control component can be opened by pulling the grille to fully or partially open the variable grille to ventilate and dissipate the heat sink; After the grid is fully opened, the cooling fan is activated when the engine cooling requirements are still not met. It can be seen that the present invention can achieve the purpose of quickly warming up the engine, reducing the opening time of the cooling fan, and reducing energy consumption by setting a stepped opening temperature.
  • FIG. 1 is a schematic structural view of an engine cooling system in the related art
  • FIG. 2 is a schematic structural view of a heat sink in the related art
  • FIG. 3 is a schematic structural view of a heat sink for an engine according to an embodiment of the present invention.
  • FIG. 4 is a schematic structural view of a wax type temperature controller used in a heat sink of an engine according to an embodiment of the present invention
  • FIG. 5 is a schematic structural view of still another actuator in a heat sink for an engine according to an embodiment of the present invention.
  • FIG. 6 is a schematic structural view of an engine cooling system according to an embodiment of the present invention.
  • FIG. 7 is a schematic structural view of a variable grid in an engine cooling system according to an embodiment of the present invention.
  • FIG. 8 is a flow chart showing an engine cooling method according to an embodiment of the present invention.
  • a heat sink for an engine includes a heat sink 1 and a variable grille 5.
  • the radiator 1 includes a core body 11, a water inlet chamber 12, and a water outlet chamber 13, and the core body 11 is connected between the water inlet chamber 12 and the water outlet chamber 13.
  • the inlet chamber 12 and the outlet chamber 13 are for communication with a cooling passage within the engine.
  • variable grid 5 is connected and covered by the heat sink 1.
  • the specific structure of the variable grille 5 is the same as that of the prior art louver, and the specific structure of the variable grille 5 will not be described herein.
  • the variable grille 5 may be connected to the outer wall of the water inlet chamber 12 and the water outlet chamber 13 of the radiator 1, and the variable grid 5 covers the entire surface of the heat sink 1, and is opposite to the surface of the heat sink 1. There is a distance between them so that the blades of the variable grid 5 can be turned over.
  • the opening angle control component may be a pull wire 51 or a tie rod.
  • the grill opening angle control member is for closing the variable grill 5 when the engine coolant temperature is less than the first preset temperature. It should be noted that the variable grille 5 and the outer wall of the water inlet chamber 12 and the water outlet chamber 13 of the radiator 1 may be connected by bolts, or may be welded, snapped or otherwise connected. The specific connection structure of the grid 5 and the inlet chamber 12 and the outlet chamber 13 is not limited in any way.
  • the operator can operate the grille opening angle control component to adjust the opening and closing of the variable grille.
  • the operator closes the variable grille, and after the warming up is completed, the operator can open the variable grid. In the cold area, the variable grid can also be kept closed.
  • the operator can adjust the blades of the variable grille to completely close, preventing the outside air from blowing on the engine, reducing the heat loss of the engine, thereby ensuring the operating temperature of the engine, greatly Shorten the engine warm-up time, especially in the cold northern regions, the effect is more obvious; when the engine needs to be cooled, the angle control component can be opened by pulling the grille to make the variable grille fully or partially open to the radiator Ventilation and cooling; in addition, in the cold northern regions, the variable grille can also be kept closed to improve the performance of the engine.
  • variable grille 5 in the embodiment of the present invention can be disposed on the windward side of the radiator 1 (for example, Figure 3
  • the left side of the radiator 1 in the middle) blocks the entry of outside air; it can also be disposed on the leeward side of the radiator 1 (for example, the right side of the radiator 1 of Fig. 3, that is, the side facing the engine), at this time,
  • the variable grid 5 is placed between the radiator 1 and the engine, and this arrangement can also prevent the entry of outside air by increasing the back pressure of the inlet of the radiator 1.
  • an actuator may be additionally provided.
  • the actuator is connected to the opening angle control member of the variable grille 5, and the actuator can automatically adjust the opening angle of the variable grille 5 according to the temperature of the coolant in the water outlet chamber 13 of the radiator 1.
  • the actuator controls the blades of the variable grid 5 to be completely closed; when the temperature of the coolant in the outlet chamber 13 of the radiator 1 is greater than Or equal to the second preset temperature, the actuator controls the variable grille 5 to open, so that the outside atmosphere is blown on the radiator 1, and the radiator 1 is ventilated and dissipated.
  • the actuator can control the blades of the variable grille to be completely closed to ensure the operating temperature of the engine and shorten the warm-up time of the engine; when the engine needs to be cooled, the radiator is turned on, and the coolant in the engine flows through the heat sink.
  • the temperature of the coolant in the water outlet chamber 13 of the radiator 1 is increased.
  • the actuator automatically controls the variable grid.
  • the blade of 5 is turned over, and the angle of the blade is automatically adjusted according to the temperature of the coolant in the water outlet 13 to ventilate and dissipate the radiator, reduce the operating temperature of the engine, and improve the working performance of the engine; in the cold northern region, when When the engine is working normally, even if the radiator is turned off, the operating temperature of the engine may still be lower than the set temperature.
  • the actuator controls the blades of the variable grille to close to improve the operating temperature of the engine.
  • the embodiment of the present invention can automatically adjust the opening angle of the variable grille according to the temperature of the coolant in the water outlet of the radiator, thereby adjusting the working environment temperature of the engine to ensure the working performance of the engine.
  • the actuator may be a wax type temperature controller, and the wax type temperature controller is disposed in the water outlet chamber 13 of the radiator 1.
  • the wax type temperature controller includes a housing 61 and a jack 62 disposed in the housing 61, a temperature sensing unit housing 63, a flexible tube 65, and an elastic member 64.
  • the housing 61 is fixedly connected to the inner wall of the water outlet chamber 13 of the heat sink 1; one end of the jack 62 (for example, the left end in FIG. 4) is fixedly connected to the inner wall of the housing 61, and the other end (for example, in FIG.
  • the right end) is a free end;
  • the temperature sensing unit housing 63 is provided with a sealing space for sealing the paraffin 66, and the temperature sensing unit housing 63 is further provided with a hole having an opening at one end, and the flexible tube 65 is placed in the hole and sleeved in the hole
  • the housing 61 is provided with a connecting hole.
  • the opening angle control component of the variable grille 5 is connected to the temperature sensing unit housing 63 through the connecting hole; the elastic component 64 is placed in the temperature sensing unit housing. 63 is between the inner wall of the housing 61.
  • the temperature sensing unit housing 63 should be made of an elastic material such as rubber.
  • the flexible tube 65 may be a hose such as a hose.
  • the opening angle control member may be a pull wire 51.
  • the working process of the wax type temperature controller is: when the temperature of the coolant in the water outlet chamber 13 of the radiator 1 is less than the second preset temperature, the paraffin 66 is solid, and the cable 51 of the variable grid 5 is located at the support shell.
  • the length of the body is the shortest, the pull wire 51 is in a relaxed state, and the rotation angle of the variable grille 5 blade is 0, that is, the variable grille 5 is completely closed; when the temperature of the coolant in the water outlet chamber 13 of the radiator 1 is greater than or equal to the second
  • the paraffin 66 melts into a liquid state, is compressed by the heat expansion, and the space of the tunnel is reduced, the flexible tube 65 is compressed, and the flexible tube 65 exerts a force on the ejector 62, since one end of the ejector 62 is fixed to the shell
  • the temperature sensing unit housing 63 will move the whole right, the compression spring member 64 generates displacement, and drives the cable to generate displacement
  • the actuator includes a temperature sensor 81, a stepper motor 83, and a first controller 82.
  • the temperature sensor 81 is used to collect the temperature value of the coolant in the water outlet chamber 13 of the radiator 1, and the output end of the stepping motor 83 is connected to the opening angle control unit of the variable grid 5, and the input end of the stepping motor 83.
  • the first controller 82 is configured to receive the temperature of the coolant in the water outlet chamber 13 of the radiator 1, and control the rotation of the stepping motor 83 according to the received temperature, thereby adjusting the variable grid 5 The opening angle.
  • the first controller 82 controls the variable grid 5 to be completely closed by the stepping motor 83; when the water outlet chamber 13 of the radiator 1 is cooled
  • the first controller 82 drives the blades of the variable grille 5 to be turned on by the stepping motor 83, and adjusts the angle of opening according to the collected temperature value.
  • variable grille 5 may include a first bracket, a second bracket, a plurality of blades and a rotating shaft, and the above-described grill opening angle control member.
  • the two ends of each blade are respectively rotatably connected to the first bracket and the second bracket through a rotating shaft; the grill opening angle control member is connected to each blade.
  • the opening angle of the variable grille 5 can be controlled according to the temperature of the coolant in the water outlet chamber 13 of the radiator 1, thereby adjusting the operating temperature of the engine and shortening the engine.
  • the warm-up time increases the performance of the engine.
  • An engine cooling system includes a heat sink and a thermostat 7 according to the above-described first aspect of the present invention.
  • a heat sink has the above technical effects
  • the engine cooling system having the heat sink also has a corresponding technical effect.
  • the engine cooling system may also include an oil cooler, a condenser, an intercooler, and the like.
  • the thermostat 7 is disposed between the water inlet chamber 12 of the radiator 1 and the cooling water passage in the engine 3.
  • the pipe 14 is connected, and the opening temperature of the variable grille 5 in the heat sink is greater than the opening temperature of the thermostat 7.
  • the opening temperature of the thermostat 7 is the temperature of the coolant in the engine 3 when the thermostat 7 is turned on, and the opening temperature of the variable grille 5 is the coolant in the outlet chamber 13 of the radiator 1 when the variable grille 5 is opened. temperature.
  • the opening temperature of the thermostat 7 is set to a first preset temperature
  • the opening temperature of the variable grid 5 is set to a second preset temperature
  • the second preset temperature is greater than the first preset temperature.
  • the thermostat 7 When the temperature of the coolant in the engine 3 is greater than or equal to the first preset temperature, the thermostat 7 is opened, the coolant in the engine 3 flows into the radiator 1 for cooling; after the thermostat 7 is turned on, when the engine 3 dissipates heat Continue to increase, causing the coolant in the water outlet chamber 13 of the radiator 1 to continue to rise.
  • the actuator opens the variable grid 5 to The radiator 1 is ventilated and cooled.
  • the engine cooling system may further include: a cooling fan 2, a collector, and a second controller.
  • the cooling fan 2 is fixedly connected to the radiator 1; the collector is used for collecting the temperature of the coolant in the water outlet chamber 13 of the radiator 1.
  • the collector may be a temperature sensor disposed in the water outlet chamber 13 of the radiator 1 .
  • the second controller is configured to receive the temperature of the coolant in the radiator outlet of the radiator collected by the collector, and turn on the cooling fan 2 when the temperature of the coolant in the outlet chamber 13 of the radiator 1 is greater than or equal to the third preset temperature.
  • the device 1 performs ventilation and heat dissipation; the third preset temperature is greater than the second preset temperature.
  • the first preset temperature, the second preset temperature, and the third preset temperature are sequentially incremented.
  • the first preset temperature, the second preset temperature, and the third preset temperature may be determined according to specific engine conditions.
  • the first preset temperature may be 85 degrees
  • the second The preset temperature can be 90 degrees
  • the third preset temperature can be 95 degrees.
  • the specific values of the first preset temperature, the second preset temperature, and the third preset temperature are not specifically limited.
  • the collector and the second controller in this embodiment may be omitted, and implemented by the temperature sensor and the first controller in the actuator.
  • the embodiment further turns on the cooling fan to further ventilate and dissipate the heat sink.
  • the invention controls the communication between the atmosphere and the nacelle by using the radiator 1 with the variable grille 5, and blocks the communication between the atmosphere and the nacelle when the water temperature is lower than the set temperature, thereby achieving the purpose of quickly warming up the engine and avoiding the engine being too cold. .
  • the engine cooling system includes a radiator 1, a cooling fan 2, a wax temperature controller 6, and a thermostat 7 mounted with a variable grille 5.
  • the wax type temperature controller 6 is disposed in the water outlet chamber 13 of the radiator 1
  • the cooling fan 2 is mounted on the radiator 1
  • the thermostat 7 is connected to the water inlet chamber 12 of the radiator 1 and the cooling passage in the engine 3.
  • the communication between the pipes 14 is on.
  • the variable grid 5 includes a first bracket 52, a second bracket (not shown), a plurality of blades 53 and a rotating shaft 54, and a pull wire 51.
  • the two ends of each of the blades 53 are respectively rotatably connected to the first bracket 52 and the second bracket through the rotating shaft 54.
  • the two ends of the first bracket 52 are respectively connected to the outer walls of the water inlet chamber 12 and the water outlet chamber 13 of the radiator 1.
  • the pull wire 51 is fixedly coupled to the temperature sensing unit housing 63 in the wax type temperature controller 6.
  • the temperature at which the temperature sensing unit housing 63 in the wax temperature controller starts to move is set higher than the opening temperature of the engine thermostat 7, and the temperature value at which the cooling fan 2 starts rotating is set higher than the temperature sensing unit housing 63 starts. The temperature during exercise.
  • the variable grille 5 is completely closed, blocking the connection between the outside atmosphere and the nacelle, thereby achieving the purpose of rapid warm-up; the engine 3 water temperature rises.
  • the temperature is greater than or equal to the first preset temperature
  • the thermostat 7 is turned on, the coolant flows through the radiator 1, and at this time, since the temperature sensing unit casing 63 is not moved, the variable grid 5 is in a closed state, the radiator 1 The heat dissipation is low, the water temperature is naturally cooled.
  • the state will be maintained; if the amount of the engine radiator continues to increase, the variable grille 5 will be fully opened. Radiator 1
  • the heat dissipation amount is the largest, and if the heat dissipation amount of the engine 3 is satisfied, the state will be maintained; if the heat dissipation amount of the engine 3 continues to increase, the temperature of the coolant in the radiator water outlet chamber 13 also rises, when the water outlet chamber 13 When the internal coolant temperature is greater than or equal to the third preset temperature, the startup temperature of the cooling fan 2 is reached, and the cooling fan 2 is turned on to enhance the heat dissipation amount of the radiator 1.
  • the engine cooling system controls the atmosphere to communicate with the nacelle by adjusting the opening angle of the variable grille.
  • the heat dissipation in the cabin can be controlled, thereby improving the engine warm-up time; if the engine itself The heat dissipation amount is too large, because the radiator prevents the entry of the outside cold air, the temperature in the cabin can be maintained, and the engine can be operated within a reasonable temperature range.
  • the embodiment of the present invention can achieve the stepwise opening temperature. The engine quickly warms up and reduces the cooling fan on time, which is the purpose of reducing energy consumption.
  • the heat sink of the embodiment of the present invention can adjust the temperature through the variable grille, the temperature of the water can be controlled not to be too low even if the thermostat fails.
  • Step S1 When the temperature of the coolant in the engine is less than the first preset temperature, the heat sink 1, the cooling fan 2, and the variable grille 5 that has been previously disposed on the heat sink are turned off.
  • the operator can adjust the opening angle of the variable grille through the grill opening angle control unit to adjust the engine Working temperature.
  • the operator can adjust the blades of the variable grille to completely close to ensure the operating temperature of the engine and shorten the warm-up time of the engine, especially in the cold northern regions.
  • the operator can open the angle control component by pulling the grille to fully or partially open the variable grille.
  • the variable grille can be kept closed at all times to improve the engine. Work performance.
  • the engine cooling method may further comprise the following steps:
  • Step S2 when the temperature of the coolant in the engine is greater than or equal to the first preset temperature, the thermostat 7 is turned on, and the radiator 1 cools the coolant in the engine;
  • Step S3 when the temperature of the coolant in the water outlet chamber 13 of the radiator 1 is greater than or equal to the second preset temperature, the variable grid 5 is opened;
  • step S4 when the temperature of the coolant in the water outlet chamber 13 of the radiator 1 is greater than or equal to the third preset temperature, the cooling fan 2 mounted on the radiator 1 is turned on.
  • the first preset temperature, the second preset temperature, and the third preset temperature are sequentially incremented.
  • the variable grid 5 is closed; when the temperature of the coolant in the outlet chamber 13 of the radiator 1 is greater than or equal to the second preset temperature , the variable grille 5 is turned on.
  • the cooling fan 2 mounted on the radiator 1 is turned off; when the temperature of the coolant in the outlet chamber 13 of the radiator 1 is greater than or equal to the first At the three preset temperatures, the cooling fan 2 mounted on the radiator 1 is turned on.
  • the variable grid 5 is completely closed; if the water temperature of the engine 3 rises and is greater than or equal to the first preset temperature, the thermostat 7 is opened, the coolant flows through the radiator 1 for cooling; if the heat dissipation amount of the engine 3 continues to increase, the temperature of the coolant in the outlet chamber 13 of the radiator 1 will rise, and when the coolant in the outlet chamber 13 of the radiator 1 is cooled.
  • the temperature is greater than or equal to the second preset temperature
  • the operator can manually operate the variable grille to fully or partially open to ventilate and dissipate the heat sink; if the heat dissipation of the engine 3 continues to increase, the coolant in the outlet of the radiator is cooled.
  • the temperature also increases. When the temperature of the coolant in the outlet chamber is higher than the third preset temperature, the startup temperature of the cooling fan 2 is reached, and the cooling fan 2 is turned on to enhance the heat dissipation
  • the opening angle of the variable grille can be automatically adjusted according to the temperature of the coolant in the water outlet chamber 13 of the radiator 1, thereby adjusting the working environment temperature of the engine in real time.
  • the opening angle of the variable grille can be controlled in real time by the control device.
  • the blades of the variable grille When the engine is warmed up, the blades of the variable grille can be completely closed to ensure the operating temperature of the engine and shorten the warm-up time of the engine, especially in the cold northern regions; the effect is more obvious when the engine needs cooling; Open, the coolant in the engine flows through the radiator, and the temperature of the coolant in the outlet of the radiator rises when the radiator When the temperature of the effluent indoor coolant is higher than the second preset temperature, the blades of the variable grille are opened to ventilate and dissipate the heat sink; if the temperature of the coolant in the effluent chamber of the radiator continues to rise at this time, Turn on the cooling fan to ventilate the heat sink.
  • the engine cooling method of the embodiment of the present invention by setting the stepwise opening temperature, it is possible to achieve the purpose of quickly warming up the engine, reducing the opening time of the cooling fan, and reducing energy consumption.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)

Abstract

L'invention concerne un dispositif de rayonnement de chaleur pour un moteur comprenant un radiateur (1) et une grille variable (5). La grille variable (5) est raccordée au radiateur (1) et recouvre le radiateur (1). La grille variable (5) est dotée d'une partie de commande d'angle d'ouverture de grille permettant de commander l'angle d'ouverture de la grille variable de sorte que la température de l'environnement de travail du moteur soit régulée en temps réel, un chauffage rapide du moteur soit obtenu, un temps d'ouverture de ventilateur de refroidissement soit réduit et des économies d'énergie soient réalisées. L'invention concerne également un système de refroidissement et un procédé de refroidissement pour moteur.
PCT/CN2014/095653 2014-06-17 2014-12-30 Dispositif de rayonnement de chaleur pour moteur, système de refroidissement et procédé pour moteur WO2015192636A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE112014006749.0T DE112014006749T5 (de) 2014-06-17 2014-12-30 Wärmeabfuhrvorrichtung für einen Motor sowie Kühlsystem und -verfahren für einen Motor

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201410270283.1A CN104832268A (zh) 2014-06-17 2014-06-17 用于发动机的散热装置、发动机冷却系统及方法
CN201410270283.1 2014-06-17

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Publication Number Publication Date
WO2015192636A1 true WO2015192636A1 (fr) 2015-12-23

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PCT/CN2014/095653 WO2015192636A1 (fr) 2014-06-17 2014-12-30 Dispositif de rayonnement de chaleur pour moteur, système de refroidissement et procédé pour moteur

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Country Link
CN (1) CN104832268A (fr)
DE (1) DE112014006749T5 (fr)
WO (1) WO2015192636A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110645081A (zh) * 2019-10-29 2020-01-03 江西驰田科技有限公司 汽车散热器
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