CN212508518U - Engine cooling system - Google Patents
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- CN212508518U CN212508518U CN202020414976.4U CN202020414976U CN212508518U CN 212508518 U CN212508518 U CN 212508518U CN 202020414976 U CN202020414976 U CN 202020414976U CN 212508518 U CN212508518 U CN 212508518U
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Abstract
In order to solve the not good problem of cylinder head cooling effect that current engine cooling system exists, this disclosure provides an engine cooling system to improve cylinder head cooling effect. The engine cooling system comprises a water pump, a cylinder block water jacket, a cylinder cover water jacket, a temperature control module and a radiator; the water outlet of the water pump is respectively communicated with the water inlet of the cylinder water jacket and the water inlet of the cylinder water jacket, the first water outlet of the cylinder water jacket is communicated with the first water inlet of the temperature control module, the first water outlet of the cylinder water jacket is communicated with the second water inlet of the temperature control module, the water outlet of the temperature control module is communicated with the water inlet of the radiator, and the water outlet of the radiator is communicated with the water inlet of the cylinder water jacket. In the engine cooling system disclosed by the invention, the cylinder block water jacket and the cylinder head water jacket are connected in parallel, so that the split cooling of the cylinder block water jacket and the cylinder head water jacket is realized, and the cooling effect of the cylinder head is improved.
Description
Technical Field
The present disclosure relates to the field of engine cooling, and more particularly, to an engine cooling system.
Background
The existing engine cooling system usually works in a closed forced circulation cooling mode, namely a cooling liquid circulation system taking a water pump as a power source is constructed through elements such as the water pump, an engine cylinder block water jacket, an engine cylinder head water jacket, a thermostat, a water pipe, a radiator and the like, and heat of an engine is dissipated.
SUMMERY OF THE UTILITY MODEL
In order to solve the not good problem of cylinder head cooling effect that current engine cooling system exists, this disclosure provides an engine cooling system to improve cylinder head cooling effect.
In order to achieve the above object, the present disclosure provides an engine cooling system, which includes a water pump, a cylinder block water jacket, a cylinder head water jacket, a temperature control module, and a radiator;
the water outlet of the water pump is respectively communicated with the water inlet of the cylinder water jacket and the water inlet of the cylinder water jacket, the first water outlet of the cylinder water jacket is communicated with the first water inlet of the temperature control module, the first water outlet of the cylinder water jacket is communicated with the second water inlet of the temperature control module, the water outlet of the temperature control module is communicated with the water inlet of the radiator, and the water outlet of the radiator is communicated with the water inlet of the cylinder water jacket.
Optionally, the system further comprises an integrated exhaust manifold water jacket, and a water outlet of the water pump is communicated with a water inlet of the cylinder block water jacket through the integrated exhaust manifold water jacket.
Optionally, a first thermostat is arranged at a first water inlet of the temperature control module, and a second thermostat is arranged at a second water inlet of the temperature control module.
Optionally, the system further comprises a transmission oil cooler and an electronic water pump;
a second water outlet of the cylinder cover water jacket is communicated with a water inlet of the transmission oil cooler, a water side outlet of the transmission oil cooler is communicated with a water inlet of the electronic water pump, and a water outlet of the electronic water pump is communicated with a second water inlet of the temperature control module;
the system further includes an oil cooler;
and a second water outlet of the cylinder block water jacket is communicated with a water side water inlet of the engine oil cooler, and a water side water outlet of the engine oil cooler is communicated with a second water inlet of the temperature control module.
Optionally, the system further comprises an exhaust gas recirculation cooler and a warm air blower;
and a third water outlet of the water jacket of the cylinder cover is communicated with a water side water inlet of the exhaust gas recirculation cooler, a water side water outlet of the exhaust gas recirculation cooler is communicated with the warm air blower, and a water outlet of the warm air blower is communicated with a second water inlet of the temperature control module.
Optionally, the system comprises a junction water pipe; the first water outlet of the cylinder cover water jacket, the water outlet of the electronic water pump, the water side water outlet of the engine oil cooler and the water outlet of the fan heater are communicated with the second water inlet of the temperature control module through the converging water pipe.
Alternatively to this, the first and second parts may,
the system also comprises an expansion water tank and a supercharger;
the air overflow port of the radiator is communicated with the first inlet of the expansion water tank;
the air overflow port of the cylinder cover water jacket is communicated with the first inlet of the expansion water tank;
the water outlet of the expansion water tank is communicated with the water inlet of the water pump;
a third water outlet of the cylinder block water jacket is communicated with a water inlet at the water side of the supercharger;
and a water outlet at the water side of the supercharger is communicated with a water inlet of the water jacket of the cylinder body.
Optionally, the system includes an exhaust manifold water jacket, the exhaust manifold water jacket includes an upper exhaust manifold water jacket and a lower exhaust manifold water jacket, the cylinder head water jacket includes an upper cylinder head water jacket and a lower cylinder head water jacket, and the cylinder head water jacket is sequentially connected in series by the lower exhaust manifold water jacket, the lower cylinder head water jacket, the upper cylinder head water jacket and the upper exhaust manifold water jacket.
Optionally, the system includes an integrated exhaust manifold water jacket; the third water outlet of the cylinder head water jacket is communicated with the water side water inlet of the exhaust gas recirculation cooler through the integrated exhaust manifold water jacket.
Optionally, the system further comprises a cylinder head combustion chamber water jacket and a gas passage nose bridge area water jacket; the exhaust manifold water jacket, the cylinder cover combustion chamber water jacket and the gas passage nose bridge area water jacket are connected in series.
Has the advantages that:
in the engine cooling system disclosed by the invention, the cylinder block water jacket and the cylinder head water jacket are connected in parallel, so that the split cooling of the cylinder block water jacket and the cylinder head water jacket is realized, and the cooling effect of the cylinder head is improved.
In the engine cooling system of the embodiment, the flow rate of the cooling liquid of the cylinder block water jacket and the cylinder head water jacket is controlled by the temperature control module.
According to the engine cooling system, the flow of the cooling liquid of the cylinder block and the cylinder cover can be independently controlled, the control effect is improved, the temperature control module can accurately control different temperatures of the cylinder block and the cylinder cover, the combustion detonation tendency is reduced, the wall lubricating oil viscosity is reduced by properly improving the temperature of the wall surface of the cylinder block, the effect of reducing friction between the cylinder block and a piston is achieved, and the heat efficiency of an engine is favorably improved.
In the engine cooling system disclosed by the invention, the electronic water pump is connected in series on the cooling loop of the transmission oil cooler, so that the problem of insufficient flow of the cooling liquid of the transmission oil cooler loop under low-speed and large load is solved, and the quick warm-up under low-temperature start is facilitated.
In the engine cooling system, a water outlet of the engine oil cooler is communicated with a second water inlet of the temperature control module; a first water outlet of the cylinder block water jacket is communicated with a first water inlet of the temperature control module; the cooling liquid at the water outlet of the engine oil cooler and the cooling liquid at the first water outlet of the water jacket of the cylinder body are converged to the temperature control module, so that the temperature control module can control conveniently.
In the engine cooling system disclosed by the invention, the oil cooler, the exhaust gas recirculation cooler, the warm air blower, the transmission oil cooler and other sub-circuits are converged in the water pipe and distributed by the temperature control module to enter the radiator, so that most of the heated cooling liquid can exchange heat with the outside air in the radiator, the heat dissipation capacity of the system is improved, and the performance requirement of the water pump is lowered. And after the oil cooler, the exhaust gas recirculation cooler, the warm air blower, the transmission oil cooler and other sub-circuits are converged in the water pipe, the temperature is homogenized, and the temperature control module is convenient to effectively control.
In the engine cooling system of the present disclosure, the cylinder head water jacket is formed by sequentially connecting the lower exhaust manifold water jacket, the lower cylinder head water jacket, the upper cylinder head water jacket and the upper exhaust manifold water jacket in series. The upper and lower layers of the integrated exhaust manifold water jacket are matched with the upper and lower layers of the cylinder cover water jacket, so that the cylinder cover can be fully cooled, and the cooling efficiency is improved.
In the engine cooling system disclosed by the invention, the exhaust gas recirculation cooler takes water from the lower part of the integrated exhaust manifold water jacket and is connected with the warm air blower in series, and the warm air blower can be heated by utilizing exhaust heat energy, so that the quality of warm air in a carriage is improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the disclosure and together with the description serve to explain the principles of the disclosure.
FIG. 1 is a diagram of the connection of elements of an engine cooling system in an embodiment of the present disclosure;
FIG. 2 is an oblique view of a cylinder head water jacket and a block water jacket in one embodiment of the present disclosure;
FIG. 3 is a water jacket exhaust side schematic view of a cylinder head water jacket and a block water jacket in one embodiment of the present disclosure;
FIG. 4 is a side view of a cylinder head water jacket and a block water jacket in one embodiment of the present disclosure;
FIG. 5 is a schematic illustration of the cylinder head water jacket and the water jacket intake side of the block water jacket in one embodiment of the present disclosure;
FIG. 6 is a schematic partial coolant flow diagram of a cylinder head jacket and a block jacket in one embodiment of the present disclosure;
FIG. 7 is a partial coolant flow schematic of a cylinder head water jacket in an embodiment of the present disclosure;
FIG. 8 is a functional schematic diagram of a stage one engine cooling system in an embodiment of the present disclosure;
FIG. 9 is a functional schematic diagram of a stage two engine cooling system in an embodiment of the present disclosure;
FIG. 10 is a schematic diagram of the operation of the engine cooling system at stage three in one embodiment of the present disclosure.
Wherein the content of the first and second substances,
1. a water pump;
2. a cylinder block water jacket; 21. a first water outlet of the cylinder block water jacket; 23. a third water outlet of the cylinder block water jacket;
3. a cylinder head water jacket; 31. a first water outlet of the cylinder cover water jacket; 32. a second water outlet of the cylinder cover water jacket; 33. a third water outlet of the cylinder cover water jacket;
4. a temperature control module; 41. a first water inlet of the temperature control module; 42. a second water inlet of the temperature control module; 43. a water outlet of the temperature control module;
5. a heat sink; 6. an oil cooler; 7. an electronic water pump; 8. an oil cooler; 9. an exhaust gas recirculation cooler; 10. a warm air blower; 11. a supercharger; 12. an expansion tank.
Detailed Description
The present disclosure will be described in further detail with reference to the drawings and embodiments. It is to be understood that the specific embodiments described herein are for purposes of illustration only and are not to be construed as limitations of the present disclosure. It should be further noted that, for the convenience of description, only the portions relevant to the present disclosure are shown in the drawings.
It should be noted that the embodiments and features of the embodiments in the present disclosure may be combined with each other without conflict. The present disclosure will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
Referring to fig. 1 to 10, an engine cooling system includes a water pump 1, a cylinder block water jacket 2, a cylinder head water jacket 3, a temperature control module 4, and a radiator 5;
the water outlet of the water pump 1 is respectively communicated with the water inlet of the cylinder water jacket and the water inlet of the cylinder water jacket 3, the first water outlet 21 of the cylinder water jacket is communicated with the first water inlet 41 of the temperature control module, the first water outlet 31 of the cylinder water jacket is communicated with the second water inlet 42 of the temperature control module, the water outlet 43 of the temperature control module is communicated with the water inlet of the radiator 5, and the water outlet of the radiator 5 is communicated with the water inlet of the cylinder water jacket.
In the engine cooling system of the embodiment, the cylinder block water jacket and the cylinder head water jacket are connected in parallel, so that the split cooling of the cylinder block water jacket and the cylinder head water jacket is realized, and the cylinder head cooling effect is improved.
The temperature control module 4 is a module with a built-in temperature regulator, and the temperature regulator is used for controlling the connection and disconnection of the paths of the water inlet and the water outlet of the temperature control module. The system can control the flow of the cooling liquid of the cylinder block water jacket and the cylinder cover water jacket through the temperature control module.
In one embodiment, the engine cooling system further comprises an integrated exhaust manifold water jacket, and the water outlet of the water pump is communicated with the water inlet of the cylinder block water jacket through the integrated exhaust manifold water jacket. The integrated exhaust manifold water jacket is a water jacket mounted on the integrated exhaust manifold, and the integrated exhaust manifold is an exhaust manifold integrated with the cylinder head water jacket. In the embodiment, the thermal fatigue cracking phenomenon caused by overhigh temperature due to lack of cooling of the exhaust manifold can be prevented, and meanwhile, before the cooling liquid enters the water jacket of the cylinder block, the cooling liquid is firstly radiated by the integrated exhaust manifold, so that the radiating effect of the water jacket of the cylinder cover can be improved. Referring specifically to fig. 6, the lower portion a of the integrated exhaust manifold water jacket communicates with the water inlet of the cylinder block water jacket. In order to facilitate understanding of the technical solution of the present disclosure, referring to fig. 5 to 6, arrow portions thereof indicate partial flow directions of the coolant, wherein fig. 6 includes the partial flow directions of the coolant of the respective water jackets, and fig. 7 includes the partial flow directions of the coolant of the block water jacket.
In one embodiment, the first water inlet of the temperature control module is provided with a first thermostat, and the second water inlet of the temperature control module is provided with a second thermostat.
The first thermostat and the second thermostat are used for realizing independent control of the flow of the cooling liquid of the cylinder block and the cylinder cover, so that the control effect is improved; the temperature control module can accurately realize different temperature control of the cylinder body and the cylinder cover, reduces the tendency of combustion knocking, and reduces the viscosity of wall lubricating oil by properly increasing the temperature of the wall surface of the cylinder body, thereby playing a role in reducing friction between the cylinder body and the piston and being beneficial to improving the heat efficiency of an engine.
Referring to fig. 1, the first and second water inlets 41 and 42 of the temperature control module may be respectively communicated with the water outlet 43. The water outlet of the temperature control module 4 may also have a first water outlet and a second water outlet, the first water inlet 41 of the temperature control module is communicated with the first water outlet of the temperature control module 4, and the second water inlet 42 of the temperature control module is communicated with the second water outlet of the temperature control module 4.
In one embodiment, referring to fig. 1-4, 8-10, the engine cooling system further includes a transmission oil cooler 6 and an electric water pump 7;
the second water outlet 32 of the cylinder cover water jacket is communicated with the water inlet of the transmission oil cooler 6, the water side outlet of the transmission oil cooler 6 is communicated with the water inlet of the electronic water pump 7, and the water outlet of the electronic water pump 7 is communicated with the second water inlet 42 of the temperature control module. This is derailleur oil cooler water route, and wherein, second delivery port 32 sets up in the water pump water inlet position of cylinder cap water jacket, and the water pump water inlet of cylinder cap water jacket is exactly the first water inlet position of cylinder cap water jacket. A valve is arranged between a water outlet of the electronic water pump 7 and a second water inlet 42 of the temperature control module, the transmission oil cooler takes water from a water pump with the lowest temperature, heat dissipation of the oil cooler is facilitated, the flow rate is adjusted by the independent electronic water pump according to needs, the problem that the flow rate of cooling liquid of the loop is insufficient under the working condition of low speed and large load of an engine can be solved, the loop can be closed under the working condition of a cold machine by the additionally arranged valve, and the rising speed of the temperature of water and oil under the low-temperature environment is accelerated.
In this embodiment, through establish ties electronic pump on the cooling circuit of derailleur oil cooler, solve derailleur oil cooler return circuit coolant liquid flow not enough problem under the low-speed heavy load, be favorable to quick warm-up under the low-temperature start.
In this embodiment, the water outlet of the electronic water pump is communicated with the second water inlet of the temperature control module; a first water outlet of the cylinder block water jacket is communicated with a first water inlet of the temperature control module; the cooling liquid at the water outlet of the electronic water pump and the cooling liquid at the first water outlet of the cylinder body water jacket are converged to the temperature control module, so that the temperature control module can conveniently control.
In one embodiment, referring to fig. 1-3, 8-10, the engine cooling system further includes an oil cooler 8;
the third water outlet 23 of the cylinder block water jacket is communicated with the water side water inlet of the engine oil cooler 8, and the water side water outlet of the engine oil cooler 8 is communicated with the second water inlet 42 of the temperature control module. This is the oil cooler water circuit.
In the embodiment, a water outlet of the engine oil cooler is communicated with a second water inlet of the temperature control module; a first water outlet of the cylinder block water jacket is communicated with a first water inlet of the temperature control module; the cooling liquid at the water outlet of the engine oil cooler and the cooling liquid at the first water outlet of the water jacket of the cylinder body are converged to the temperature control module, so that the temperature control module can control conveniently.
In one embodiment, referring to fig. 1-4, 8-10, the engine cooling system further includes an exhaust gas recirculation cooler 9 and a warm air blower 10; the warm air blower 10 is called warm air for short;
the third water outlet 33 of the cylinder cover water jacket is communicated with the water side water inlet of the exhaust gas recirculation cooler 9, the water side water outlet of the exhaust gas recirculation cooler 9 is communicated with the warm air blower 10, and the water outlet of the warm air blower 10 is communicated with the second water inlet 42 of the temperature control module. The air heater is a water path of the air heater, wherein an exhaust gas recirculation cooler is called EGR for short.
In this embodiment, the water outlet of the warm air blower is communicated with the second water inlet of the temperature control module; a first water outlet of the cylinder block water jacket is communicated with a first water inlet of the temperature control module; so that the cooling liquid at the water outlet of the fan heater and the cooling liquid at the first water outlet of the cylinder body water jacket are converged to the temperature control module, and the temperature control module is convenient to control.
In one embodiment, referring to FIGS. 1-10, an engine cooling system includes a water junction pipe; the first water outlet 31 of the cylinder cover water jacket, the water outlet of the electronic water pump 7, the water side water outlet of the engine oil cooler 8 and the water outlet of the heater unit 10 are communicated with the second water inlet of the temperature control module through a confluent water pipe.
According to the technical scheme, the oil cooler, the exhaust gas recirculation cooler, the warm air blower, the transmission oil cooler and other sub-circuits are converged on the water pipe, and then the temperature control module distributes the coolant to enter the radiator, so that most of the heated coolant can exchange heat with the outside air in the radiator, the heat dissipation capacity of the system is improved, and the performance requirement of the water pump is lowered. And after the oil cooler, the exhaust gas recirculation cooler, the warm air blower, the transmission oil cooler and other sub-circuits are converged in the water pipe, the temperature is homogenized, and the temperature control module is convenient to effectively control.
In one embodiment, referring to fig. 1-3, 8-10, the engine cooling system further includes a supercharger 11;
the third water outlet 23 of the cylinder block water jacket is communicated with the water inlet at the water side of the supercharger 11, and the water outlet at the water side of the supercharger 11 is communicated with the water inlet of the cylinder block water jacket, that is, the water outlet at the water side of the supercharger 11 is communicated with the water inlet of the cylinder block water jacket together with the water outlet of the water pump 1. This is the booster water circuit.
In one embodiment, referring to fig. 1, 8-10, the engine cooling system further includes an expansion tank 12;
the air overflow port of the radiator 5 is communicated with a first inlet of the expansion water tank 12;
the overflow port of the cylinder head water jacket 3 is communicated with the first inlet of the expansion water tank 12;
the water outlet of the expansion water tank 12 is communicated with the water inlet of the water pump 1.
This is the air overflow waterway.
In one embodiment, the system includes an exhaust manifold water jacket including an upper exhaust manifold water jacket and a lower exhaust manifold water jacket, the cylinder head water jacket including an upper cylinder head water jacket and a lower cylinder head water jacket, the cylinder head water jacket being serially connected in sequence by the lower exhaust manifold water jacket, the lower cylinder head water jacket, the upper cylinder head water jacket, and the upper exhaust manifold water jacket. In the embodiment, the upper layer and the lower layer of the integrated exhaust manifold water jacket are matched with the upper layer and the lower layer of the cylinder cover water jacket, so that the cylinder cover can be fully cooled, and the cooling efficiency is improved.
In one embodiment, the system further comprises a cylinder head combustion chamber water jacket and a gas passage nose area water jacket; the cylinder cover water jacket, the cylinder cover combustion chamber water jacket and the air passage nose bridge area water jacket are connected in series.
The cylinder cover water jacket, the cylinder cover combustion chamber water jacket and the air passage nose bridge area water jacket are connected in series to strengthen the cooling of the cylinder cover and avoid the phenomenon of thermal fatigue cracking of the integrated exhaust manifold water jacket caused by overhigh temperature.
In one embodiment, referring to fig. 2-4, the system includes an integrated exhaust manifold water jacket; and the third water outlet of the cylinder cover water jacket is communicated with the water side water inlet of the exhaust gas recirculation cooler through the integrated exhaust manifold water jacket. The water outlet of the water side of the exhaust gas recirculation cooler in the embodiment is communicated with the warm air blower, and the water outlet of the warm air blower is communicated with the second water inlet of the temperature control module. In the embodiment, the exhaust gas recirculation cooler takes water from the lower part of the integrated exhaust manifold water jacket and is connected with the warm air blower in series, and the warm air blower can be heated by utilizing exhaust heat energy, so that the quality of warm air in a carriage is improved.
In one embodiment, the cylinder block water jacket is optimized for outlet to the supercharger and to the oil cooler, and the cylinder head water jacket is optimized for outlet to the transmission oil cooler and to the exhaust gas recirculation cooler. An outlet to a transmission oil cooler is designed at the highest pressure position of the whole cooling system of the cylinder cover water jacket; an independent and optimally designed channel is arranged in the water jacket of the cylinder body for water to be taken by the supercharger and the engine oil cooler, so that the geometry of the channel and the two outlets can be optimized, and the flow of the outlets can be optimally adjusted; an outlet to an exhaust gas recirculation cooler is designed at the lower part of the integrated exhaust manifold.
As shown in fig. 8 to 10, the operation of the engine cooling system can be divided into three stages:
stage one: in the warm-up stage, the first water inlet and the second water inlet of the temperature control module are both closed
For convenience of understanding, the first water inlet of the temperature control module is referred to as a cylinder inlet, and the second water inlet of the temperature control module is referred to as a cylinder cover inlet;
when the engine starts to work, the temperature of the cooling liquid in the whole cooling circulation is lower than the opening temperature of a cylinder cover inlet of the temperature control module, the cooling circulation system is in a warm-up stage at the moment, the cooling liquid in the cylinder water jacket keeps a static state, the cooling liquid in the cylinder water jacket circulates through a bypass pipeline, the working principle diagram of the small circulation is shown in fig. 8, at the moment, a valve of the transmission oil cooler sub-circuit is closed, and the electronic water pump does not work. As the engine combustion heat is accumulated, the temperature of the coolant in the engine and the wall surface temperature of the engine gradually rise.
And a second stage: temperature control module cylinder cover inlet is opened, cylinder body inlet is closed
When the temperature of the coolant at the outlet of the engine rises to the opening temperature of the cylinder cover inlet of the temperature control module, the valve at the cylinder cover inlet is opened, the opening lift of the valve is gradually increased along with the further rise of the temperature of the coolant, the cooling circulation system is in a stage two at the moment, the working principle of the cooling circulation system is shown in figure 9, the temperature of the coolant at the outlet of the water jacket of the cylinder block of the engine is lower than the opening temperature of the cylinder block inlet of the temperature control module, and the coolant in the water jacket of the cylinder block keeps a static state. At this stage, the sub-loop of the oil cooler of the transmission is opened or closed according to a calibration control strategy, and the rotating speed of the electronic water pump is adjusted as required to meet the flow demand.
And a third stage: temperature control module cylinder cover inlet opening and cylinder body inlet opening
The water temperature rises continuously with the increase of the heat absorbed by the coolant from the wall surface of the engine, and when the temperature of the coolant at the outlet of the water jacket of the cylinder block is higher than the opening temperature of the inlet valve of the cylinder block of the temperature control module, the inlet of the cylinder block is opened, and the working principle diagram of the system is shown in fig. 10. At this stage, the sub-loop of the oil cooler of the transmission is opened or closed according to a calibration control strategy, and the rotating speed of the electronic water pump is adjusted as required to meet the flow demand.
In the description herein, reference to the description of the terms "one embodiment/mode," "some embodiments/modes," "example," "specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment/mode or example is included in at least one embodiment/mode or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to be the same embodiment/mode or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments/modes or examples. Furthermore, the various embodiments/aspects or examples and features of the various embodiments/aspects or examples described in this specification can be combined and combined by one skilled in the art without conflicting therewith.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are 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 the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
It will be understood by those skilled in the art that the foregoing embodiments are merely for clarity of illustration of the disclosure and are not intended to limit the scope of the disclosure. Other variations or modifications may occur to those skilled in the art, based on the foregoing disclosure, and are still within the scope of the present disclosure.
Claims (10)
1. The engine cooling system is characterized by comprising a water pump, a cylinder block water jacket, a cylinder head water jacket, a temperature control module and a radiator;
the water outlet of the water pump is respectively communicated with the water inlet of the cylinder water jacket and the water inlet of the cylinder water jacket, the first water outlet of the cylinder water jacket is communicated with the first water inlet of the temperature control module, the first water outlet of the cylinder water jacket is communicated with the second water inlet of the temperature control module, the water outlet of the temperature control module is communicated with the water inlet of the radiator, and the water outlet of the radiator is communicated with the water inlet of the cylinder water jacket.
2. The system of claim 1 further comprising an integrated exhaust manifold water jacket through which a water outlet of the water pump communicates with a water inlet of the block water jacket.
3. The system of claim 1, wherein the first water inlet of the temperature control module is provided with a first thermostat and the second water inlet of the temperature control module is provided with a second thermostat.
4. The system of claim 1, further comprising a transmission oil cooler and an electric water pump;
a second water outlet of the cylinder cover water jacket is communicated with a water inlet of the transmission oil cooler, a water side outlet of the transmission oil cooler is communicated with a water inlet of the electronic water pump, and a water outlet of the electronic water pump is communicated with a second water inlet of the temperature control module;
the system further includes an oil cooler;
and a second water outlet of the cylinder block water jacket is communicated with a water side water inlet of the engine oil cooler, and a water side water outlet of the engine oil cooler is communicated with a second water inlet of the temperature control module.
5. The system of claim 4, further comprising an exhaust gas recirculation cooler and a warm air blower;
and a third water outlet of the water jacket of the cylinder cover is communicated with a water side water inlet of the exhaust gas recirculation cooler, a water side water outlet of the exhaust gas recirculation cooler is communicated with the warm air blower, and a water outlet of the warm air blower is communicated with a second water inlet of the temperature control module.
6. The system of claim 5, wherein the system comprises a junction water pipe; the first water outlet of the cylinder cover water jacket, the water outlet of the electronic water pump, the water side water outlet of the engine oil cooler and the water outlet of the fan heater are communicated with the second water inlet of the temperature control module through the converging water pipe.
7. The system of claim 1,
the system also comprises an expansion water tank and a supercharger;
the air overflow port of the radiator is communicated with the first inlet of the expansion water tank;
the air overflow port of the cylinder cover water jacket is communicated with the first inlet of the expansion water tank;
the water outlet of the expansion water tank is communicated with the water inlet of the water pump;
a third water outlet of the cylinder block water jacket is communicated with a water inlet at the water side of the supercharger;
and a water outlet at the water side of the supercharger is communicated with a water inlet of the water jacket of the cylinder body.
8. The system of claim 1, wherein the system includes an exhaust manifold water jacket including an upper exhaust manifold water jacket and a lower exhaust manifold water jacket, and the cylinder head water jacket includes an upper cylinder head water jacket and a lower cylinder head water jacket, the cylinder head water jacket being serially connected in sequence by the lower exhaust manifold water jacket, the lower cylinder head water jacket, the upper cylinder head water jacket, and the upper exhaust manifold water jacket.
9. The system of claim 5, wherein the system comprises an integrated exhaust manifold water jacket; the third water outlet of the cylinder head water jacket is communicated with the water side water inlet of the exhaust gas recirculation cooler through the integrated exhaust manifold water jacket.
10. The system of claim 9, further comprising a cylinder head combustion chamber water jacket and a gas passage nose bridge zone water jacket; the exhaust manifold water jacket, the cylinder cover combustion chamber water jacket and the gas passage nose bridge area water jacket are connected in series.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114893316A (en) * | 2022-06-07 | 2022-08-12 | 哈尔滨东安汽车动力股份有限公司 | Arrangement scheme of efficient natural air suction engine cooling system |
| CN115045746A (en) * | 2021-11-12 | 2022-09-13 | 长城汽车股份有限公司 | Cooling system of engine |
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2020
- 2020-03-27 CN CN202020414976.4U patent/CN212508518U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115045746A (en) * | 2021-11-12 | 2022-09-13 | 长城汽车股份有限公司 | Cooling system of engine |
| CN114893316A (en) * | 2022-06-07 | 2022-08-12 | 哈尔滨东安汽车动力股份有限公司 | Arrangement scheme of efficient natural air suction engine cooling system |
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