CN215408842U - Cooling system and vehicle of engine - Google Patents
Cooling system and vehicle of engine Download PDFInfo
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- CN215408842U CN215408842U CN202120711271.3U CN202120711271U CN215408842U CN 215408842 U CN215408842 U CN 215408842U CN 202120711271 U CN202120711271 U CN 202120711271U CN 215408842 U CN215408842 U CN 215408842U
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Abstract
The application provides a cooling system of an engine and a vehicle, comprising a water pump, a first pipeline connected with the water pump and a second pipeline connected with the first pipeline, wherein a warm air electromagnetic valve is arranged between the first pipeline and the second pipeline; the warm air electromagnetic valve is used for cutting off the connection between the first pipeline and the second pipeline in an open state and communicating the first pipeline and the second pipeline in a closed state; the first pipeline is used for cooling the cylinder body, and the second pipeline is used for cooling the cylinder cover; wherein the warm air solenoid valve is configured to be in a disconnected state when an engine of the vehicle is in a first preset stage. The utility model aims to solve the problem of long warm-up time in the prior art.
Description
Technical Field
The application relates to the technical field of engine cooling systems, in particular to a cooling system of an engine and a vehicle.
Background
The existing engine mostly adopts a cooling system with small circulation and increased circulation, an engine water pump provides circulating power, and the small circulation comprises an engine cylinder body, an engine cylinder cover, the self cooling requirements (EGR cooling and engine oil cooling) of the engine and the requirements (warm air and urea nozzles) of the whole vehicle. When the water temperature rises to a certain value, the thermostat is used for controlling and communicating a large circulation water path (a whole vehicle radiator) to cool the whole cooling system, so that the engine is prevented from overheating and faults occur.
When engine cooling system is in the microcirculation, the pipeline for cooling the cylinder cap is normal open, and this makes the coolant liquid flow through the cylinder cap pipeline at the warm-up stage, and coolant liquid temperature is higher than cylinder cap temperature this moment to make coolant liquid and cylinder cap exchange heat, heat the cylinder cap promptly, lose the heat like this, lead to the temperature rise slower, prolonged warm-up time.
Disclosure of Invention
In view of this, the present invention provides a cooling system for an engine and a vehicle, so as to solve the problem of long warm-up time in the prior art.
In order to achieve the purpose, the technical scheme of the utility model is realized as follows:
a cooling system of an engine comprises a water pump, a first pipeline connected with the water pump, and a second pipeline connected with the first pipeline, wherein a warm air electromagnetic valve is arranged between the first pipeline and the second pipeline; the warm air electromagnetic valve is used for cutting off the connection between the first pipeline and the second pipeline in an open state and communicating the first pipeline and the second pipeline in a closed state;
the first pipeline is used for cooling the cylinder body, and the second pipeline is used for cooling the cylinder cover;
wherein the warm air solenoid valve is configured to be in a disconnected state when an engine of a vehicle is in a first preset stage.
Further, the warm air solenoid valve is configured to be in a closed state when an engine of the vehicle is in a second preset stage.
The temperature saver is used for cutting off the connection between the first pipeline and the third pipeline respectively in an off state, and is used for communicating the first pipeline and the second pipeline with the third pipeline respectively in a closed state so as to form a large circulation cooling link communicated with a water pump;
the third pipeline is used for communicating a whole vehicle radiator to cool the engine;
wherein the thermostat is configured to be in a closed state when an engine of a vehicle is in a third predetermined phase and to be in an open state when the engine is not in the third predetermined phase.
Furthermore, a warm air core body is arranged on the second pipeline.
Further, the first pipeline further comprises a plurality of sub-pipelines, wherein the plurality of sub-pipelines are respectively used for cooling the engine oil cooler, the high-pressure EGR cooler, the low-pressure EGR cooler and the urea nozzle.
Further, the plurality of sub-pipelines are independent of each other.
The system further comprises a thermal management module, wherein a signal output end of the thermal management module is connected with the warm air electromagnetic valve;
when detecting that an engine of the vehicle is in the first preset stage, the thermal management module outputs a disconnection control signal to the warm air electromagnetic valve so as to enable the warm air electromagnetic valve to be in a disconnection state; and when the engine of the vehicle is in the second preset stage, outputting a closing control signal to the warm air electromagnetic valve so as to enable the warm air electromagnetic valve to be in a closed state.
Another object of the present invention is to provide a vehicle to solve the problem of the existing vehicle that the engine cooling system is warmed up for a long time.
In order to achieve the purpose, the technical scheme of the utility model is realized as follows:
a vehicle is provided with the cooling system of the engine.
The vehicle and the cooling system of the engine have the same advantages compared with the prior art, and the detailed description is omitted.
Compared with the prior art, the cooling system of the engine has the following advantages:
in the utility model, when the engine of the vehicle is in the first preset stage, the warm air electromagnetic valve is in a disconnected state, and the first pipeline and the second pipeline are cut off at the moment, namely, only the first pipeline participates in cooling the cylinder body of the engine, and the second pipeline for cooling the cylinder cover does not participate in heat exchange, thereby reducing the participation of other cooling parts when the engine is in the first preset stage, reducing heat dissipation and realizing the shortening of warm-up time.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the utility model and, together with the description, serve to explain the utility model and not to limit the utility model. In the drawings:
FIG. 1 is a circuit diagram of an engine cooling system according to an embodiment of the present invention;
FIG. 2 is a schematic illustration of a cooling phase of a cooling system for an engine according to an embodiment of the present invention;
description of reference numerals:
the system comprises a first pipeline 1, a second pipeline 110, a sub-pipeline 2, a second pipeline 3, a third pipeline 4, a small circulation pipeline 5, a middle circulation pipeline 6 and a large circulation pipeline.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. 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 application.
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
Example one
Referring to fig. 1 and 2, system diagrams of a cooling system of an engine according to an embodiment of the present invention are shown. As shown in fig. 1, the cooling system of the engine comprises a water pump, a first pipeline 1 connected with the water pump, and a second pipeline 2 connected with the first pipeline 1, wherein a warm air electromagnetic valve is arranged between the first pipeline 1 and the second pipeline 2; the warm air electromagnetic valve is used for cutting off the connection between the first pipeline 1 and the second pipeline 2 in an open state and communicating the first pipeline 1 and the second pipeline 2 in a closed state;
the first pipeline 1 is used for cooling the cylinder body, and the second pipeline 2 is used for cooling the cylinder cover;
wherein the warm air solenoid valve is configured to be in a disconnected state when an engine of the vehicle is in a first preset stage.
In the embodiment of the utility model, when the engine of the vehicle is in the first preset stage, the warm air electromagnetic valve is in the off state, and the first pipeline 1 and the second pipeline 2 are cut off at the moment, namely, only the first pipeline 1 participates in cooling the engine cylinder body, and the second pipeline 2 for cooling the cylinder cover does not participate in heat exchange, so that the participation of other cooling parts when the engine is in the first preset stage is reduced, the heat dissipation is reduced, and the warm-up time is shortened.
As shown in fig. 2, the small circulation line 4 includes only the first line 1, and the medium circulation line 5 includes the second line 2 and the first line 1.
It should be noted that, in the embodiment of the present invention, the first preset stage is a warm-up stage of the engine, and the small circulation pipeline 4 participates in cooling when the engine is in the first preset stage.
Additionally, in some embodiments, as shown in fig. 1 and 2, the warm air solenoid valve is configured to be in a closed state when the engine of the vehicle is in a second predetermined phase.
After the engine passes through the first preset stage 4, the engine is in the second preset stage, and the warm air electromagnetic valve is in a closed state, namely the first pipeline 1 for cooling the cylinder body is communicated with the second pipeline 2 for cooling the cylinder cover, so that the engine cylinder body is prevented from being overheated and breaking down.
It should be noted that, in the embodiment of the present invention, the second preset period is a small circulation cooling period of the engine, and the middle circulation line 5 participates in cooling during the second preset period of the engine.
Referring to fig. 1 and 2, in addition, in some embodiments, a third pipeline 3 connected to the first pipeline 1 and the second pipeline 2 respectively is included, a thermostat is arranged between the second pipeline 2 and the third pipeline 3, the thermostat is used for cutting off the connection between the first pipeline 1 and the third pipeline 3 and between the second pipeline 2 and the third pipeline 3 respectively in an open state, and is used for enabling the first pipeline 1 and the second pipeline 2 to be communicated with the third pipeline 3 respectively in a closed state so as to form a large circulation cooling link communicated with a water pump;
the third pipeline 3 is used for communicating a finished automobile radiator to cool an engine;
wherein the thermostat is configured to be in a closed state when an engine of the vehicle is in a third predetermined phase and to be in an open state when the engine is not in the third predetermined phase.
When the temperature rise in the first pipeline 1 that is used for cooling the cylinder body, perhaps the coolant temperature rise in the second pipeline 2 that is used for cooling the cylinder cap, its coolant temperature enables the thermostat closure, thereby make first pipeline 1 and third pipeline intercommunication 3, or second pipeline 2 and third pipeline 3 intercommunication, or first pipeline 1 and second pipeline 2 communicate third pipeline 3 respectively, form the major cycle cooling link with the water pump intercommunication, wherein, third pipeline 3 is used for communicateing whole car radiator and cools off the engine, can realize cooling down the coolant in the cooling system, avoid the coolant temperature too high in the engine, and can not play the cooling effect to the engine.
As shown in fig. 2, the large circulation line 6 includes a third line 3, a second line 2, and a first line 1.
It should be noted that, in the embodiment of the present invention, the third preset stage is a large circulation cooling stage of the engine, and the large circulation pipeline 6 participates in cooling when the engine is in the third preset stage.
The thermostat is a valve for controlling the flow path of cooling liquid, and is an automatic temperature regulating device, which usually comprises a temperature sensing component, and the flow of air, gas or liquid is opened and closed by means of thermal expansion or cold contraction, so as to realize the communication between the first pipeline 1 and the second pipeline 2 and the third pipeline 3.
The cooling liquid flows in the radiator core of the whole vehicle, and the air passes outside the radiator core of the whole vehicle. The hot cooling liquid cools the air due to heat dissipation, and the cold air heats the air due to heat dissipation of the cooling liquid, so that the whole vehicle radiator is a heat exchanger, the cooling liquid in the cooling system is cooled, and the problem that the engine fails due to the fact that the engine cannot be cooled due to overhigh temperature of the cooling liquid is avoided.
Referring to fig. 1 and 2, additionally, in some embodiments, a warm air core is provided on the second pipe 2.
When the engine of vehicle is in the second preset stage, the warm braw core passes through warm braw solenoid valve and second pipeline 2 intercommunication, can realize the demand to vehicle supply warm braw.
It should be noted that, under the action of the fan of the warm air blower, the cooling liquid flowing through the warm air core is taken away by the air blown by the fan of the warm air blower, so that the efficient utilization of the stored heat of the cooling liquid is realized, and the fault caused by the overhigh temperature of the engine is avoided.
Referring to fig. 1, in addition, in some embodiments, the first pipeline 1 further comprises a plurality of sub-pipelines 110, wherein the plurality of sub-pipelines 110 are respectively used for cooling the oil cooler, the high-pressure EGR cooler, the low-pressure EGR cooler, and the urea injection nozzle.
Under the action of the water pump, the coolant in the first pipeline 1 is conveyed to the oil cooler, the high-pressure EGR cooler, the low-pressure EGR cooler and the urea nozzle through the plurality of sub-pipelines 110 to cool the oil cooler, the high-pressure EGR cooler, the low-pressure EGR cooler and the urea nozzle. If the water pump does not participate in the coolant circulation of the first preset stage, the coolant in the first pipeline 1 is communicated with the coolants in the plurality of sub-pipelines 110, so that the coolant in the first pipeline 1 transmits the heat for cooling the cylinder block to the coolants in the plurality of sub-pipelines 110 through heat conduction, the cylinder block is prevented from being cooled due to overhigh temperature of the coolant, and the engine is prevented from being out of order due to overhigh temperature of the cylinder block.
It should be noted that the oil cooler is used for cooling lubricating oil of an engine, and keeps the temperature and viscosity of the oil reasonable. The high-pressure EGR cooler and the low-pressure EGR cooler are used for reducing the temperature of exhaust gas entering the cylinder, the low temperature of the exhaust gas is beneficial to the heat load of the engine, and the temperature of the engine is reduced. The coolant in the sub-line 110 is used to cool the high pressure EGR cooler and the low pressure EGR cooler, thereby reducing the exhaust gas temperature, the lower the exhaust gas temperature, the better the NOx suppression effect on the engine. Under the condition that the temperature of the urea solution in the urea nozzle is low in winter, the urea solution is easy to crystallize or freeze, once the urea solution is crystallized, the urea injection unit is easy to block, and after the cooling liquid in the sub-pipeline 110 receives heat conducted from the cylinder body, the heat is conducted to the urea nozzle, so that the blockage of the urea nozzle is avoided.
Referring to fig. 1, additionally, in some embodiments, the plurality of sub-pipes 110 are independent of each other.
The plurality of sub-pipelines 110 are independent of each other, namely the plurality of sub-pipelines 110 are independently communicated with the first pipeline 1, so that the oil cooler, the high-pressure EGR cooler and the low-pressure EGR cooler on the sub-pipelines 110 are cooled, heat is transferred to the urea nozzle, and the situation that the temperature of the cooling liquid in the sub-pipelines 110 is too high and the oil cooler, the high-pressure EGR cooler and the low-pressure EGR cannot be cooled is avoided.
Referring to fig. 1, in addition, in some embodiments, the air conditioner further includes a thermal management module, and a signal output end of the thermal management module is connected to the warm air solenoid valve;
when detecting that an engine of a vehicle is in a first preset stage, the thermal management module outputs a disconnection control signal to the warm air electromagnetic valve so as to enable the warm air electromagnetic valve to be in a disconnection state; and the closing control signal is output to the warm air electromagnetic valve when the engine of the vehicle is in a second preset stage, so that the warm air electromagnetic valve is in a closed state.
When the heat management module detects that the engine of the vehicle is in a first preset stage, namely the heat management module detects that the engine of the vehicle is in a warm-up stage, the heat management module controls the warm air electromagnetic valve to be in a disconnected state through the output disconnection control signal, so that the first pipeline 1 and the second pipeline 2 are disconnected, cooling of unnecessary equipment can be reduced when the engine is in the warm-up stage, and the warm-up stage time is shortened. The thermal management module controls the warm air electromagnetic valve to be in a closed state through the output closed control signal, so that the first pipeline 1 is communicated with the second pipeline 2, the engine can be warmed up after the stage, the cooling liquid is transmitted into the second pipeline 2 for cooling the cylinder cover, the temperature of the cooling liquid in the first pipeline 1 is reduced, and the problem that the engine cylinder body is high in temperature and breaks down is avoided.
Example two
Referring to fig. 1 and 2, an embodiment of the present invention further provides a vehicle including the cooling system of the engine in the above embodiment.
In the embodiment of the utility model, when the engine is in the first preset stage, the first pipeline 1 for cooling the cylinder body and the second pipeline for cooling the cylinder cover are disconnected through the warm air electromagnetic valve, so that the participation of other cooling parts when the engine is in the first preset stage is avoided, the heat dissipation is reduced, and the warming-up time of the engine is shortened.
It can be understood that the automobile shown in the present application can be various types of automobiles such as a small passenger car, a medium passenger car, a large passenger car, a heavy truck, and the like, and the cooling system of the engine proposed in the present application can be arranged in each type of automobile to optimize the use experience of users.
It should be understood that while the present specification has described preferred embodiments of the present application, additional variations and modifications of those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including the preferred embodiment and all such alterations and modifications as fall within the true scope of the embodiments of the application.
The engine cooling system and the vehicle with the engine cooling system provided by the application are described in detail, and the principle and the implementation mode of the application are explained by applying specific examples, and the description of the above examples is only used for helping to understand the method and the core idea of the application; meanwhile, for a person skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.
Claims (8)
1. An engine cooling system, comprising: the system comprises a water pump, a first pipeline (1) connected with the water pump and a second pipeline (2) connected with the first pipeline (1), wherein a warm air electromagnetic valve is arranged between the first pipeline (1) and the second pipeline (2); the warm air electromagnetic valve is used for cutting off the connection between the first pipeline (1) and the second pipeline (2) in an open state and communicating the first pipeline (1) and the second pipeline (2) in a closed state;
the first pipeline (1) is used for cooling a cylinder body, and the second pipeline (2) is used for cooling a cylinder cover;
wherein the warm air solenoid valve is configured to be in a disconnected state when an engine of a vehicle is in a first preset stage.
2. The cooling system for an engine as set forth in claim 1, wherein said warm air solenoid valve is configured to be in a closed state when said engine of the vehicle is in a second predetermined phase.
3. The cooling system of an engine according to claim 1, characterized by comprising a third pipeline (3) connected with the first pipeline (1) and the second pipeline (2), respectively, wherein a thermostat is arranged between the second pipeline (2) and the third pipeline (3), and is used for cutting off the connection between the first pipeline (1) and the third pipeline (3) respectively when the thermostat is in an open state, and is used for communicating the first pipeline (1) and the second pipeline (2) with the third pipeline (3) respectively when the thermostat is in a closed state so as to form a large-circulation cooling link communicated with the water pump;
the third pipeline (3) is used for communicating a whole vehicle radiator to cool the engine;
wherein the thermostat is configured to be in a closed state when the engine of the vehicle is in a third predetermined phase and to be in an open state when the engine is not in the third predetermined phase.
4. An engine cooling system according to claim 1 or 2, characterized in that a warm air core is provided on the second pipe (2).
5. An engine cooling system according to claim 1, characterized in that the first line (1) further comprises a plurality of sub-lines (110), wherein the plurality of sub-lines (110) are used for cooling an oil cooler, a high pressure EGR cooler, a low pressure EGR cooler and a urea injection nozzle, respectively.
6. An engine cooling system according to claim 1, characterized in that the plurality of sub-circuits (110) are independent of each other.
7. The cooling system of the engine according to claim 1, further comprising a thermal management module, wherein a signal output end of the thermal management module is connected with the warm air solenoid valve;
when detecting that an engine of the vehicle is in the first preset stage, the thermal management module outputs a disconnection control signal to the warm air electromagnetic valve so as to enable the warm air electromagnetic valve to be in a disconnection state; and when the engine of the vehicle is in the second preset stage, outputting a closing control signal to the warm air electromagnetic valve so as to enable the warm air electromagnetic valve to be in a closed state.
8. A vehicle, characterized in that the vehicle is provided with a cooling system of an engine according to any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120711271.3U CN215408842U (en) | 2021-04-06 | 2021-04-06 | Cooling system and vehicle of engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120711271.3U CN215408842U (en) | 2021-04-06 | 2021-04-06 | Cooling system and vehicle of engine |
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| Publication Number | Publication Date |
|---|---|
| CN215408842U true CN215408842U (en) | 2022-01-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120711271.3U Active CN215408842U (en) | 2021-04-06 | 2021-04-06 | Cooling system and vehicle of engine |
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| CN (1) | CN215408842U (en) |
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2021
- 2021-04-06 CN CN202120711271.3U patent/CN215408842U/en active Active
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