CN110886646A - Engine cooling system - Google Patents

Engine cooling system Download PDF

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Publication number
CN110886646A
CN110886646A CN201911219048.0A CN201911219048A CN110886646A CN 110886646 A CN110886646 A CN 110886646A CN 201911219048 A CN201911219048 A CN 201911219048A CN 110886646 A CN110886646 A CN 110886646A
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China
Prior art keywords
water
warm air
communicated
water pump
outlet
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Granted
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CN201911219048.0A
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CN110886646B (en
Inventor
王杰刚
侯亦波
张雪林
韦平
张增光
豆刚
冯玮玮
滕建耐
金奎�
阮仁宇
张良超
杨冰
胡宏德
傅豪
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Anhui Jianghuai Automobile Group Corp
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Anhui Jianghuai Automobile Group Corp
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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
    • F01P5/00—Pumping cooling-air or liquid coolants
    • F01P5/10—Pumping liquid coolant; Arrangements of coolant pumps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00271—HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/02—Heating, cooling or ventilating [HVAC] devices the heat being derived from the propulsion plant
    • B60H1/04—Heating, cooling or ventilating [HVAC] devices the heat being derived from the propulsion plant from cooling liquid of the plant
    • B60H1/06—Heating, cooling or ventilating [HVAC] devices the heat being derived from the propulsion plant from cooling liquid of the plant directly from main radiator
    • 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
    • F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
    • 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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00271—HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit
    • B60H2001/00307—Component temperature regulation using a liquid flow
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P3/00—Liquid cooling
    • F01P3/02—Arrangements for cooling cylinders or cylinder heads
    • F01P2003/028—Cooling cylinders and cylinder heads in series
    • 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
    • F01P2007/146—Controlling of coolant flow the coolant being liquid using valves
    • 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

Abstract

The invention discloses an engine cooling system which comprises a thermostat, a mechanical water pump, a radiator, a cylinder body water jacket, a cylinder cover water jacket and a warm air pipeline subsystem, wherein the thermostat is connected with the mechanical water pump; the mechanical water pump, the cylinder water jacket and the radiator form a complete water path circulation, the thermostat is arranged between the mechanical water pump and the radiator, and the thermostat is used for controlling the on-off of the mechanical water pump and the radiator; the cylinder body water jacket is communicated with the cylinder cover water jacket, a water outlet of the cylinder cover water jacket is communicated with a water inlet of the warm air pipeline subsystem, and a water outlet of the warm air pipeline subsystem is communicated with a water inlet of the mechanical water pump; and a first stop valve is arranged between the cylinder cover water jacket and the warm air pipeline subsystem and is used for controlling the on-off between the cylinder cover water jacket and the warm air pipeline subsystem. When the engine cooling system is at low temperature, the radiator and the warm air pipeline subsystem do not participate in circulation, and the number of the heat radiating devices is reduced, so that the engine can reach normal working temperature as soon as possible.

Description

Engine cooling system
Technical Field
The invention relates to the technical field of engines, in particular to an engine cooling system.
Background
The primary function of an engine cooling system is to maintain the engine within a proper temperature range under all operating conditions. After the cold engine is started, the cooling system also ensures that the engine is heated up quickly and reaches a normal working temperature as soon as possible. During the operation of the engine, the temperature of the engine components is high due to the heating effect of the high-temperature combustion gas, and if the engine components are not properly cooled, the overall reduction of the dynamic performance, the economical efficiency, the reliability and the durability of the engine is finally caused. In the prior art, an engine cooling system is also communicated with a warm air pipeline, when an engine is just started, the engine cooling system is difficult to reach the normal working temperature as soon as possible due to heat dispersion of the warm air pipeline, and under the condition that the warm air pipeline is too long, the engine is difficult to reach the normal working temperature as soon as possible when the engine is started.
Disclosure of Invention
The invention mainly aims to provide an engine cooling system, and aims to solve the problem that the engine is difficult to reach normal working temperature as soon as possible when being started in the prior art.
In order to achieve the purpose, the invention provides an engine cooling system, which comprises a thermostat, a mechanical water pump, a radiator, a cylinder body water jacket, a cylinder cover water jacket and a warm air pipeline subsystem;
the water outlet of the mechanical water pump is communicated with the water inlet of the cylinder water jacket, the water outlet of the cylinder water jacket is communicated with the water inlet of the radiator, the water outlet of the radiator is communicated with the water inlet of the mechanical water pump, the thermostat is arranged between the mechanical water pump and the radiator, and the thermostat is used for controlling the on-off between the mechanical water pump and the radiator;
the cylinder body water jacket is communicated with the cylinder cover water jacket, a water outlet of the cylinder cover water jacket is communicated with a water inlet of the warm air pipeline subsystem, and a water outlet of the warm air pipeline subsystem is communicated with a water inlet of the mechanical water pump;
the water outlet of the cylinder cover water jacket is also directly communicated with the water inlet of the mechanical water pump, a first stop valve is arranged between the cylinder cover water jacket and the warm air pipeline subsystem, and the first stop valve is used for controlling the on-off between the cylinder cover water jacket and the warm air pipeline subsystem.
Preferably, a second stop valve is further arranged between the cylinder cover water jacket and the mechanical water pump, and the second stop valve is used for controlling the on-off between the cylinder cover water jacket and the mechanical water pump.
Preferably, the warm air pipeline subsystem comprises a warm air electronic water pump and a warm air inlet pipe close to the water inlet of the warm air pipeline subsystem, and the warm air electronic water pump is connected with the warm air inlet pipe.
Preferably, the warm air pipeline subsystem further comprises a defroster and a warm air blower, a water inlet of the defroster is communicated with a water outlet of the warm air electronic water pump, and a water outlet of the defroster is communicated with a water inlet of the mechanical water pump;
the water inlet of the warm air blower is connected with the water outlet of the warm air electronic water pump, and the water outlet of the warm air blower is communicated with the water inlet of the mechanical water pump.
Preferably, the engine cooling subsystem further comprises an oil cooler, and a water outlet and a water inlet of the oil cooler are both communicated with the cylinder water jacket.
Preferably, the engine cooling system further comprises a supercharger, a water inlet of the supercharger is communicated with a water outlet of the mechanical water pump, and a water outlet of the supercharger is communicated with a water inlet of the radiator.
Preferably, the engine cooling subsystem further comprises an electronic water pump, a water inlet of the electronic water pump is communicated with a water outlet of the supercharger, and a water outlet of the electronic water pump is communicated with a water inlet of the radiator.
Preferably, the engine cooling system further comprises an expansion kettle, a first air outlet pipe and a second air outlet pipe, wherein an air inlet of the first air outlet pipe is communicated with the cylinder cover water jacket, an air outlet of the first air outlet pipe is communicated with the expansion kettle, an air inlet of the second air outlet pipe is communicated with the radiator, the second air outlet pipe is communicated with the expansion kettle, and the expansion kettle is arranged at the highest position of the engine cooling system.
Preferably, a water inlet of the expansion kettle is communicated with the outside, and a water outlet of the expansion kettle is communicated with the mechanical water pump.
Preferably, the first air outlet pipe and the second air outlet pipe are both provided with one-way valves.
According to the engine cooling system, when the engine works normally, namely the engine is in a high-temperature state, the thermostat is in an open state, the mechanical water pump is communicated with the radiator, the first stop valve is also in an open state, the cylinder cover water jacket is communicated with the warm air pipeline subsystem, at the moment, the engine cooling system is provided with the main heat dissipation circulation water channel, the warm air circulation water channel and the small circulation water channel, the mechanical water pump, the cylinder cover water jacket and the radiator form the main heat dissipation circulation water channel, the mechanical water pump, the cylinder cover water jacket and the warm air pipeline subsystem form the warm air circulation water channel, and the mechanical water pump, the cylinder cover water jacket and the cylinder cover water jacket form the. The engine under the high temperature state is dispelled the heat to main heat dissipation circulation water route, and warm braw water route circulation also carries out suitable heat dissipation to the engine, and warm braw circulation water route still provides the warm braw for in the car simultaneously, has both guaranteed the normal operating temperature of engine, has still guaranteed the warm braw effect of whole car. When the engine is just started, namely when the engine is at low temperature, the thermostat is in a closed state, the mechanical water pump and the radiator are disconnected, the first stop valve is also in a closed state, and the cylinder head water jacket and the warm air pipeline subsystem are disconnected. When the engine cooling system is at low temperature, the radiator and the warm air pipeline subsystem do not participate in circulation, and the heat dissipation device is reduced, so that the heat dissipation capacity of the engine cooling system is reduced, the warming-up speed of the engine is greatly improved, and the engine can reach normal working temperature as soon as possible.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic diagram of an engine cooling system according to an embodiment of the present invention.
The reference numbers illustrate:
Figure BDA0002296816890000031
Figure BDA0002296816890000041
the implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The invention provides an engine cooling system.
As shown in fig. 1, in the present embodiment, the engine cooling system 100 includes a thermostat 15, a mechanical water pump 11, a radiator 12, a block water jacket 13, a head water jacket 14, and a warm air pipeline subsystem 19; the water outlet of the mechanical water pump 11 is communicated with the water inlet of the cylinder water jacket 13, the water outlet of the cylinder water jacket 13 is communicated with the water inlet of the radiator 12, the water outlet of the radiator 12 is communicated with the water inlet of the mechanical water pump 11, the thermostat 15 is arranged between the mechanical water pump 11 and the radiator 12, and the thermostat 15 is used for controlling the on-off between the mechanical water pump 11 and the radiator 12; the cylinder body water jacket 13 is communicated with the cylinder cover water jacket 14, the water outlet of the cylinder cover water jacket 14 is communicated with the water inlet of the warm air pipeline subsystem 19, and the water outlet of the warm air pipeline subsystem 19 is communicated with the water inlet of the mechanical water pump 11; the water outlet of the cylinder cover water jacket 14 is also directly communicated with the water inlet of the mechanical water pump 11, a first stop valve 191 is arranged between the cylinder cover water jacket 14 and the warm air pipeline subsystem 19, and the first stop valve 191 is used for controlling the on-off between the cylinder cover water jacket 14 and the warm air pipeline subsystem 19.
Specifically, in the engine cooling system 100 of the present embodiment, when the engine is in a normal operation, that is, when the engine is in a high temperature state, the thermostat 15 is in an open state, the mechanical water pump 11 is communicated with the radiator 12, the first stop valve 191 is also in an open state, and the cylinder head water jacket 14 is communicated with the warm air pipeline subsystem, at this time, the engine cooling system 100 is formed with a main heat dissipation circulation water path, a warm air circulation water path, and a small circulation water path, the mechanical water pump 11, the cylinder water jacket 13, and the radiator 12 form the main heat dissipation circulation water path, the mechanical water pump 11, the cylinder water jacket 13, the cylinder head water jacket 14, and the warm air pipeline subsystem 19 form the warm air circulation water path, and the mechanical water pump 11, the cylinder water jacket 13. The engine under the high temperature state is dispelled the heat to main heat dissipation circulation water route, and warm braw water route circulation also carries out suitable heat dissipation to the engine, and warm braw circulation water route still provides the warm braw for in the car simultaneously, has both guaranteed the normal operating temperature of engine, has still guaranteed the warm braw effect of whole car.
When the engine is just started, namely when the engine is at a low temperature, the thermostat 15 is in a closed state, the mechanical water pump 11 is disconnected from the radiator 12, the first stop valve 191 is also in a closed state, and the cylinder head water jacket 14 is disconnected from the warm air pipeline subsystem 19, at this time, only a small circulation water channel consisting of the mechanical water pump 11, the cylinder head water jacket 13 and the cylinder head water jacket 14 is formed in the engine cooling system 100, namely, the radiator 12 and the warm air pipeline subsystem 19 do not participate in circulation. When the engine cooling system 100 of the embodiment is at a low temperature, the radiator 12 and the warm air pipeline subsystem 19 do not participate in the cycle, and the number of heat dissipation devices is reduced, so that the heat dissipation capacity of the engine cooling system 100 is reduced, the warm-up speed of the engine is greatly increased, and the engine can reach a normal working temperature as soon as possible.
In this embodiment, as shown in fig. 1, a second stop valve 192 is further disposed between the cylinder head water jacket 14 and the mechanical water pump 11, and the second stop valve 192 is used for controlling on/off between the cylinder head water jacket 14 and the mechanical water pump 11. When the engine is at a low temperature, the second stop valve 192 is in an open state, the small circulation water path is in a circulation state, and the small circulation water path ensures the mobility of water in the engine cooling system 100, so that the water temperature sensor can accurately detect the real water temperature in the engine. When the engine is at a high temperature, the second stop valve 192 is in a closed state, and the small circulation water path is in a disconnected state, so that the small circulation water path is prevented from shunting to influence the warm air effect.
In this embodiment, as shown in fig. 1, the warm air pipeline subsystem 19 includes a warm air electronic water pump 193 and a warm air inlet pipe close to the water inlet of the warm air pipeline subsystem 19, and the warm air electronic water pump 193 is connected to the warm air inlet pipe. Under the condition of the long warm air pipeline, the flow resistance of the warm air pipeline is large, the warm air electronic water pump 193 can further pressurize cooling water, the large flow resistance of the warm air pipeline can be overcome, the water flow of the warm air pipeline is improved, and the automobile is guaranteed to obtain a good warm air effect.
In this embodiment, as shown in fig. 1, the warm air pipeline subsystem 19 further includes a defroster 194 and a warm air blower 195, a water inlet of the defroster 194 is communicated with a water outlet of the warm air electronic water pump 193, and a water outlet of the defroster 194 is communicated with a water inlet of the mechanical water pump 11; the water inlet of the warm air blower 195 is connected with the water outlet of the warm air electronic pump 193, and the water outlet of the warm air blower 195 is communicated with the water inlet of the mechanical water pump 11. The warm air enters the defroster 194 to prevent frosting on the window glass due to large temperature difference between the inside and the outside of the vehicle, and meanwhile, the engine cooling system 100 can provide warm air for the fan heater 195 to ensure the warm air effect of the whole vehicle.
In this embodiment, as shown in fig. 1, the engine cooling subsystem further includes an oil cooler 16, and both a water outlet and a water inlet of the oil cooler 16 are communicated with the cylinder water jacket 13. When the engine normally works, the temperature of the engine oil in the engine is high, the engine oil is easy to deteriorate, the running performance of the engine is affected, the engine oil is cooled and radiated through the oil cooler 16, the engine oil is guaranteed to be in a normal working temperature, and the running performance of the engine is guaranteed.
In this embodiment, as shown in fig. 1, the engine cooling system 100 further includes a supercharger 17, a water inlet of the supercharger 17 is communicated with a water outlet of the mechanical water pump 11, and a water outlet of the supercharger 17 is communicated with a water inlet of the radiator 12. When the engine works normally, the supercharger 17 operates at high temperature, and the supercharger 17 is directly communicated with the mechanical water pump 11 and the radiator 12, so that the heat dissipation effect of the supercharger 17 is improved, and the operating performance of the supercharger 17 is ensured.
In this embodiment, as shown in fig. 1, the engine cooling subsystem further includes an electronic water pump 171, a water inlet of the electronic water pump 171 is communicated with a water outlet of the supercharger 17, and a water outlet of the electronic water pump 171 is communicated with a water inlet of the radiator 12. An electronic water pump 171 is further arranged on a circulating water path formed by the supercharger 17, the mechanical water pump 11 and the radiator 12, when the engine is shut down, the mechanical water pump 11 stops rotating, the engine cooling system 100 stops running, but the supercharger 17 is still in a high-temperature state, at this time, the electronic water pump 171 is turned on to continuously drive cooling liquid to circulate, heat dissipation is continuously carried out on the supercharger 17, the temperature of the supercharger 17 is reduced, and the service life of the supercharger 17 is favorably prolonged.
In this embodiment, as shown in fig. 1, the engine cooling system 100 further includes an expansion tank 18, a first air outlet pipe 181, and a second air outlet pipe 182, an air inlet of the first air outlet pipe 181 is communicated with the cylinder head water jacket 14, an air outlet of the first air outlet pipe 181 is communicated with the expansion tank 18, an air inlet of the second air outlet pipe 182 is communicated with the radiator 12, and the second air outlet pipe 182 is communicated with the expansion tank 18. The engine cooling system 100 can have gas in the normal working process, if the gas is not discharged in time, the cooling effect of the engine cooling system 100 can be influenced, and the first air outlet pipe 181 and the second air outlet pipe 182 are arranged at the highest position of the engine, so that the gas in the engine cooling system 100 can be timely discharged, and the working performance of the engine cooling system 100 can be ensured.
In this embodiment, as shown in fig. 1, the water inlet of the expansion tank 18 is communicated with the outside, and the water outlet of the expansion tank 18 is communicated with the mechanical water pump 11. The expansion kettle 18 is communicated with the outside, gas in the engine cooling system 100 can be discharged in time after entering the expansion kettle 18, the cooling liquid can be evaporated in the normal working process of the engine cooling system 100, and at the moment, new cooling liquid is added in time through a water inlet of the expansion kettle 18, so that the operation of the whole engine cooling system 100 is ensured.
In this embodiment, as shown in fig. 1, the first air outlet pipe 181 and the second air outlet pipe 182 are both provided with a check valve 183. The gas and the liquid discharged by the engine cooling system 100 can only enter the expansion tank 18 through the first air outlet pipe 181 and the second air outlet pipe 182, and the cooling liquid in the expansion tank 18 is prevented from flowing back to the engine cooling system 100 through the first air outlet pipe 181 and the second air outlet pipe 182.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims (10)

1. The engine cooling system is characterized by comprising a thermostat, a mechanical water pump, a radiator, a cylinder body water jacket, a cylinder cover water jacket and a warm air pipeline subsystem;
the water outlet of the mechanical water pump is communicated with the water inlet of the cylinder water jacket, the water outlet of the cylinder water jacket is communicated with the water inlet of the radiator, the water outlet of the radiator is communicated with the water inlet of the mechanical water pump, the thermostat is arranged between the mechanical water pump and the radiator, and the thermostat is used for controlling the on-off between the mechanical water pump and the radiator;
the cylinder body water jacket is communicated with the cylinder cover water jacket, a water outlet of the cylinder cover water jacket is communicated with a water inlet of the warm air pipeline subsystem, and a water outlet of the warm air pipeline subsystem is communicated with a water inlet of the mechanical water pump;
the water outlet of the cylinder cover water jacket is also directly communicated with the water inlet of the mechanical water pump, a first stop valve is arranged between the cylinder cover water jacket and the warm air pipeline subsystem, and the first stop valve is used for controlling the on-off between the cylinder cover water jacket and the warm air pipeline subsystem.
2. The engine cooling system according to claim 1, wherein a second stop valve is further arranged between the cylinder head water jacket and the mechanical water pump, and the second stop valve is used for controlling on-off between the cylinder head water jacket and the mechanical water pump.
3. The engine cooling system of claim 1, wherein the warm air pipe subsystem comprises a warm air electronic water pump and a warm air inlet pipe near an inlet of the warm air pipe subsystem, and the warm air electronic water pump is connected to the warm air inlet pipe.
4. The engine cooling system of claim 3, wherein the warm air piping subsystem further comprises a defroster and a warm air blower, a water inlet of the defroster is in communication with a water outlet of the warm air electric water pump, and a water outlet of the defroster is in communication with a water inlet of the mechanical water pump;
the water inlet of the warm air blower is connected with the water outlet of the warm air electronic water pump, and the water outlet of the warm air blower is communicated with the water inlet of the mechanical water pump.
5. The engine cooling system of claim 1, wherein the engine cooling subsystem further comprises an oil cooler, and wherein both the water outlet and the water inlet of the oil cooler are in communication with the block water jacket.
6. The engine cooling system according to claim 1, further comprising a supercharger, wherein a water inlet of the supercharger is communicated with a water outlet of the mechanical water pump, and a water outlet of the supercharger is communicated with a water inlet of the radiator.
7. The engine cooling system of claim 6, wherein the engine cooling subsystem further comprises an electronic water pump having a water inlet in communication with a water outlet of the supercharger and a water outlet in communication with a water inlet of the radiator.
8. The engine cooling system according to any one of claims 1 to 7, further comprising an expansion pot, a first outlet pipe, and a second outlet pipe, an inlet port of the first outlet pipe being communicated with the head water jacket, an outlet port of the first outlet pipe being communicated with the expansion pot, an inlet port of the second outlet pipe being communicated with the radiator, the second outlet pipe being communicated with the expansion pot, the expansion pot being disposed at a highest position of the engine cooling system.
9. The engine cooling system according to claim 8, wherein a water inlet of the expansion tank is communicated with the outside, and a water outlet of the expansion tank is communicated with the mechanical water pump.
10. The engine cooling system of claim 8, wherein a check valve is disposed on each of the first outlet duct and the second outlet duct.
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112065565A (en) * 2020-09-15 2020-12-11 奇瑞汽车股份有限公司 Thermostat assembly, cooling system, engine and car

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CN109653857A (en) * 2018-12-10 2019-04-19 安徽江淮汽车集团股份有限公司 A kind of engine-cooling system

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