CN207920709U - Engine-cooling system - Google Patents
Engine-cooling system Download PDFInfo
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- CN207920709U CN207920709U CN201820286840.2U CN201820286840U CN207920709U CN 207920709 U CN207920709 U CN 207920709U CN 201820286840 U CN201820286840 U CN 201820286840U CN 207920709 U CN207920709 U CN 207920709U
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- exhaust gas
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Abstract
A kind of engine-cooling system,Including water pump,Cylinder body water jacket,First cylinder cover water jacket,Second cylinder cover water jacket,Radiator,Thermostat,Oil cooler,Cooler for recycled exhaust gas and expansion tank,Radiator is connect by radiator exhaust pipe with expansion tank,First cylinder cap is connect by head exhaust pipe with expansion tank,Cooler for recycled exhaust gas is connect by cooler for recycled exhaust gas exhaust pipe with expansion tank,And cooler for recycled exhaust gas is connect by pipeline one end with the first cylinder body water jacket,The other end is connect with water pump to form EGR water-cooling loops,First segment discharge orifice is equipped in the pipeline that the other end of cooler for recycled exhaust gas is connect with water pump,One end of cooler for recycled exhaust gas connect realization water intaking by pipeline with cylinder body water jacket,And first segment discharge orifice is equipped in the pipeline that is connect with water pump of the other end of cooler for recycled exhaust gas,It can guarantee the flow of EGR water-cooling loops and the demand of the low water temperature of cooler for recycled exhaust gas；Oil cooler connect realization water intaking by pipeline with water pump, it is ensured that the demand of the low water temperature of flow and oil cooler of the second water-cooling loop.
Description
Technical field
The utility model belongs to technical field of engines, and in particular to arrives a kind of engine-cooling system.
Background technology
The countermeasure of atmosphere pollution caused by discharge gas as automobile, in the vehicle for carrying diesel engine, extensively
It is general to use the egr system for making discharge gas be back to engine.
In order to advantageously reduce oxynitrides, it is desirable to which EGR gases can be input to engine air with temperature appropriate
In cylinder, the main function of cooler for recycled exhaust gas is to be to cool down the exhaust gas for participating in recycle burning by coolant liquid, makes to enter cylinder
Exhaust gas temperature be reduced, to effectively reduce engine oxynitride discharge.
But under the higher load condition of engine, the temperature of discharge gas can rise, if making it to be back to hair as former state
The gas handling system of motivation, then ignition temperature can rise, the nitrous oxides concentration in discharge gas will increase instead, therefore, generally
It is provided with heat exchanger, i.e. EGR (Exhaust Gas Recirculation) cooler makes discharge gas pass through cooling water cooling
But it is back to engine afterwards, in general, the cooling water of cooler for recycled exhaust gas doubles as the cooling water of engine, engine water cold loop and EGR
When the requirement of flow and water temperature is the key that engine-cooling system design in water-cooling loop.
Utility model content
Based on this, the purpose of this utility model is to provide a kind of engine cool systems that can ensure good cooling results
System.
A kind of engine-cooling system, including water pump, cylinder body water jacket, the first cylinder cover water jacket, the second cylinder cover water jacket, heat dissipation
Device, thermostat, oil cooler, cooler for recycled exhaust gas and expansion tank,
Wherein, the water pump, the cylinder body water jacket, first cylinder cover water jacket, second cylinder cover water jacket, the heat dissipation
Device and the thermostat pass sequentially through piping connection to form the first water-cooling loop of water-cooled engine cylinder block and cylinder cap；
The oil cooler is connect by pipeline one end with the water pump, the other end is connect with the radiator to be formed
Second water-cooling loop of water-cooled engine cylinder block and cylinder cap；
The radiator is connect by radiator exhaust pipe with the expansion tank, and first cylinder cap passes through head exhaust
Pipe is connect with the expansion tank, and the cooler for recycled exhaust gas is connect by cooler for recycled exhaust gas exhaust pipe with the expansion tank, and institute
State that cooler for recycled exhaust gas is connect by pipeline one end with first cylinder body water jacket, the other end is connect with the water pump to form EGR water
Cold loop is equipped with first segment discharge orifice in the pipeline that the other end of the cooler for recycled exhaust gas is connect with the water pump.
Engine-cooling system in the utility model in practical operation, one end of cooler for recycled exhaust gas by pipeline with
Water intaking is realized in cylinder body water jacket connection, and can be protected equipped with first segment discharge orifice in the pipeline that is connect with water pump of the other end of cooler for recycled exhaust gas
Demonstrate,prove the flow of EGR water-cooling loops and the demand of the low water temperature of cooler for recycled exhaust gas；Oil cooler connect realization with water pump by pipeline
Water intaking, it is ensured that the demand of the low water temperature of flow and oil cooler of the second water-cooling loop.
Further, further include booster, described booster one end is connect with the cylinder body water jacket, the other end and the water
Pump connection.
Further, further include warm core, the warm core connect by pipeline one end with first cylinder cover water jacket, the other end
It is connect with the water pump to form the warm wind circuit for carrying out heat exchange with air conditioner loop of automobile.
Further, the water pump, the cylinder body water jacket, second cylinder cover water jacket, the radiator and the section
Warm device passes sequentially through piping connection to form the third water-cooling loop of water-cooled engine cylinder block and cylinder cap.
Further, further include gearbox oil cooler, the gearbox oil cooler passes through pipeline one end and institute
Water pump connection is stated, the other end is connect with the radiator.
Further, the size of the first segment discharge orifice is
Further, the second throttle orifice is equipped in the radiator exhaust pipe.
Further, the size of second throttle orifice is
Further, third throttle orifice is equipped in the cooler for recycled exhaust gas exhaust pipe.
Further, the size of the third throttle orifice is
Description of the drawings
Fig. 1 is the flow chart for the engine-cooling system that the utility model embodiment provides；
Fig. 2 is the flow chart of the first water-cooling loop in Fig. 1；
Fig. 3 is the flow chart of the second water-cooling loop in Fig. 1；
Fig. 4 is the flow chart of third water-cooling loop in Fig. 1.
Essential element symbol description：
Following specific implementation mode will further illustrate the utility model in conjunction with above-mentioned attached drawing.
Specific implementation mode
For the ease of more fully understanding the utility model, the utility model is carried out below in conjunction with related embodiment attached drawing
It is further explained.Give the embodiments of the present invention in attached drawing, but the utility model be not limited in it is above-mentioned preferred
Embodiment.On the contrary, purpose of providing these embodiments is in order to make the open face of the utility model more fully.
Also referring to Fig. 1 and Fig. 4, a kind of engine-cooling system, including water pump 1, cylinder body water jacket 2, the first cylinder cap
Water jacket 4, the second cylinder cover water jacket 8, radiator 9, thermostat 12, oil cooler 10, cooler for recycled exhaust gas 3 and expansion tank 7, water
Stream passes sequentially through the water pump 1, the cylinder body water jacket 2, first cylinder cover water jacket 4, second cylinder cap by piping connection
Water jacket 8, the radiator 9 and the thermostat 12, finally flow back to the water pump 1, and by the flowing of water, heat is taken out of,
The the first water-cooling loop A formed can be reduced the temperature of engine cylinder body and cylinder cap by the first water-cooling loop A,
So that engine will not cause to damage because engine cylinder body or cylinder cap temperature are excessively high；The oil cooler 10 passes through pipe
Road one end is connect with the water pump 1, the other end is connect with the radiator 9 to form the of water-cooled engine cylinder block and cylinder cap
Two water-cooling loop B, the setting of the second water-cooling loop B can further strengthen the water cooling to engine cylinder body and cylinder cap,
When the first water-cooling loop A is ineffective, the second water-cooling loop B can further to engine cylinder body with
And cylinder cap carries out water cooling effect so that engine cylinder body and cylinder cap can maintain always a stable state, can because
Engine cylinder body or cylinder cap temperature are excessively high and cause to damage；The booster 5 can promote pressure so that engine hydraulic pressure is steady
It is fixed, be not in the phenomenon that pressure not enough causes flow inadequate.
The both ends of the gearbox oil cooler 11 are connect with the water pump 1 and the radiator 9 respectively, and flow passes through
The water pump 1, the radiator 9 and the gearbox oil cooler 11, can help the radiator 9 preferably to play
The effect of heat dissipation, and then promote the radiating efficiency of the radiator 9.
One end of the cooler for recycled exhaust gas 3 connect realization water intaking (the cylinder body water by pipeline point with the cylinder body water jacket 2
Water temperature is relatively low in set 2, it is ensured that the low water temperature demand of the cooler for recycled exhaust gas 3 can avoid occurring by institute caused by high temperature
State the case where 3 inner ebullition of cooler for recycled exhaust gas causes the cooler for recycled exhaust gas 3 to burn), then return to the water pump 1, and the EGR
First segment discharge orifice is equipped in the pipeline that the other end of cooler 3 is connect with the water pump 1, it is ensured that the flow of EGR water-cooling loops
Demand.
The third water-cooling loop C further can carry out water cooling effect to engine cylinder body and cylinder cap, be combined with
The first water-cooling loop A and the second water-cooling loop B enable engine cylinder body and cylinder cap to maintain always together
In a stable state, will not cause to damage because engine cylinder body or cylinder cap temperature are excessively high.
The oil cooler 10 connect realization water intaking by pipeline with the water pump 1, then returns to the radiator 9
In, the water pump 1 is returned to by the thermostat 12 and realizes cycle, i.e., the oil cooler 10 can be individually from the water pump 1
Water intaking, it is ensured that the demand of the demand of the flow of the second water-cooling loop B and the low water temperature of the oil cooler 10, no
It is only capable of realizing so that water circulation uses, and can ensure the temperature of the flow and flow of the flow of the second water-cooling loop B
The requirement of degree greatly improves the water-cooled effect of engine.
The radiator 9 is connect by radiator exhaust pipe with the expansion tank 7, and first cylinder cover water jacket 4 passes through
Cylinder cap tracheae is connect with the expansion tank 7, and the cooler for recycled exhaust gas 3 passes through cooler for recycled exhaust gas exhaust pipe and the expansion tank 7
Connection is, it can be achieved that exhaust gas converging to the expansion tank 7.
The warm core 6 connect realization water intaking, first cylinder cover water jacket by pipeline one end with first cylinder cover water jacket 4
Water temperature is relatively high in 4, it is ensured that the high water temperature demand of the warm core 6, by using first cylinder cover water jacket, 4 height of itself
The flow of temperature so that 6 temperature of warm core increases, and does not need outside and is heated to the warm core 6, can not only save resource, and
And it can persistently give 6 heat supply of warm core.
The size of second throttle orifice isSize with the third throttle orifice isSetting,
It can ensure that exhaust gas all occurs the case where the expansion tank 7 converges, is not in exhaust gas recirculation.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
All any modification, equivalent and improvement etc., should be included in the utility model made by within the spirit and principle of utility model
Protection domain within.
Claims (10)
1. engine-cooling system, it is characterised in that：Including water pump, cylinder body water jacket, the first cylinder cover water jacket, the second cylinder cover water jacket,
Radiator, thermostat, oil cooler, cooler for recycled exhaust gas and expansion tank,
Wherein, the water pump, the cylinder body water jacket, first cylinder cover water jacket, second cylinder cover water jacket, the radiator with
And the thermostat passes sequentially through piping connection to form the first water-cooling loop of water-cooled engine cylinder block and cylinder cap；
The oil cooler is connect by pipeline one end with the water pump, the other end is connect with the radiator to form water cooling
Second water-cooling loop of engine cylinder body and cylinder cap；
The radiator is connect by radiator exhaust pipe with the expansion tank, first cylinder cap by head exhaust pipe with
The expansion tank connection, the cooler for recycled exhaust gas is connect by cooler for recycled exhaust gas exhaust pipe with the expansion tank, and the EGR
Cooler is connect by pipeline one end with first cylinder body water jacket, the other end connect with the water pump and returned with forming EGR water coolings
Road is equipped with first segment discharge orifice in the pipeline that the other end of the cooler for recycled exhaust gas is connect with the water pump.
2. engine-cooling system as described in claim 1, it is characterised in that：Further include booster, described booster one end
It is connect with the cylinder body water jacket, the other end is connect with the water pump.
3. engine-cooling system as described in claim 1, it is characterised in that：Further include warm core, the warm core passes through pipeline
One end is connect with first cylinder cover water jacket, the other end connect with the water pump and carries out heat exchange with air conditioner loop of automobile to be formed
Warm wind circuit.
4. engine-cooling system as described in claim 1, it is characterised in that：The water pump, the cylinder body water jacket, described
Two cylinder cover water jackets, the radiator and the thermostat pass sequentially through piping connection to form water-cooled engine cylinder block and cylinder
The third water-cooling loop of lid.
5. engine-cooling system as described in claim 1, it is characterised in that：Further include gearbox oil cooler, it is described
Gearbox oil cooler is connect by pipeline one end with the water pump, and the other end is connect with the radiator.
6. engine-cooling system as described in claim 1, it is characterised in that：The size of the first segment discharge orifice is
7. engine-cooling system as described in claim 1, it is characterised in that：The second section is equipped in the radiator exhaust pipe
Discharge orifice.
8. engine-cooling system as claimed in claim 7, it is characterised in that：The size of second throttle orifice is
9. engine-cooling system as described in claim 1, it is characterised in that：The is equipped in the cooler for recycled exhaust gas exhaust pipe
Three throttle orifices.
10. engine-cooling system as claimed in claim 9, it is characterised in that：The size of the third throttle orifice is
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820286840.2U CN207920709U (en) | 2018-02-28 | 2018-02-28 | Engine-cooling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820286840.2U CN207920709U (en) | 2018-02-28 | 2018-02-28 | Engine-cooling system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207920709U true CN207920709U (en) | 2018-09-28 |
Family
ID=63601974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820286840.2U Active CN207920709U (en) | 2018-02-28 | 2018-02-28 | Engine-cooling system |
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| CN (1) | CN207920709U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109915249A (en) * | 2019-03-27 | 2019-06-21 | 东风汽车集团有限公司 | Car engine cooling system and its control method |
| CN110454268A (en) * | 2019-07-16 | 2019-11-15 | 玉柴联合动力股份有限公司 | A kind of engine and cooler for recycled exhaust gas parallel connection cooling system |
| CN111878212A (en) * | 2020-07-23 | 2020-11-03 | 广西玉柴机器股份有限公司 | Efficient hybrid engine cooling system and engine cooling method |
| CN111878210A (en) * | 2020-07-23 | 2020-11-03 | 广西玉柴机器股份有限公司 | Efficient hybrid engine cooling system and control method thereof |
| CN114893283A (en) * | 2022-06-07 | 2022-08-12 | 哈尔滨东安汽车动力股份有限公司 | Supercharged engine cooling system |
-
2018
- 2018-02-28 CN CN201820286840.2U patent/CN207920709U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109915249A (en) * | 2019-03-27 | 2019-06-21 | 东风汽车集团有限公司 | Car engine cooling system and its control method |
| CN110454268A (en) * | 2019-07-16 | 2019-11-15 | 玉柴联合动力股份有限公司 | A kind of engine and cooler for recycled exhaust gas parallel connection cooling system |
| CN111878212A (en) * | 2020-07-23 | 2020-11-03 | 广西玉柴机器股份有限公司 | Efficient hybrid engine cooling system and engine cooling method |
| CN111878210A (en) * | 2020-07-23 | 2020-11-03 | 广西玉柴机器股份有限公司 | Efficient hybrid engine cooling system and control method thereof |
| CN111878210B (en) * | 2020-07-23 | 2023-10-10 | 广西玉柴机器股份有限公司 | Efficient hybrid engine cooling system and control method thereof |
| CN111878212B (en) * | 2020-07-23 | 2023-10-10 | 广西玉柴机器股份有限公司 | Efficient hybrid engine cooling system and engine cooling method |
| CN114893283A (en) * | 2022-06-07 | 2022-08-12 | 哈尔滨东安汽车动力股份有限公司 | Supercharged engine cooling system |
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