CN107905879A - A kind of engine-cooling system - Google Patents
A kind of engine-cooling system Download PDFInfo
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- CN107905879A CN107905879A CN201711039657.9A CN201711039657A CN107905879A CN 107905879 A CN107905879 A CN 107905879A CN 201711039657 A CN201711039657 A CN 201711039657A CN 107905879 A CN107905879 A CN 107905879A
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- cylinder
- water pump
- valve body
- cylinder cap
- flow path
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- 238000001816 cooling Methods 0.000 title claims abstract description 42
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 142
- 230000004087 circulation Effects 0.000 claims abstract description 46
- 239000000498 cooling water Substances 0.000 claims abstract description 44
- 210000000476 body water Anatomy 0.000 claims description 5
- 239000003921 oil Substances 0.000 description 12
- 238000005086 pumping Methods 0.000 description 10
- 238000010531 catalytic reduction reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 238000011217 control strategy Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000010721 machine oil Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008450 motivation Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000001839 systemic circulation Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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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
- 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
- F01P5/00—Pumping cooling-air or liquid coolants
- F01P5/10—Pumping liquid coolant; Arrangements of coolant pumps
-
- 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
- F01P7/16—Controlling of coolant flow the coolant being liquid by thermostatic control
- F01P7/165—Controlling of coolant flow the coolant being liquid by thermostatic control characterised by systems with two or more loops
-
- 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
- F01P2003/027—Cooling cylinders and cylinder heads in parallel
-
- 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
- F01P2005/105—Using two or more pumps
-
- 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
- F01P2050/00—Applications
- F01P2050/22—Motor-cars
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The present invention provides a kind of engine-cooling system, it includes mutually independent cylinder cap circulation waterway and cylinder body circulation waterway, cylinder cap water pump, cylinder cap are disposed with the cylinder cap circulation waterway, after cooling water in the cylinder cap circulation waterway is flowed out by the outlet of the cylinder cap water pump, by the cylinder cap, there is provided the entrance to the cylinder cap water pump；Cylinder block water pump, cylinder body are disposed with the cylinder body circulation waterway, after the cooling water in the cylinder body circulation waterway is by the outlet outflow of the cylinder block water pump, by the cylinder body, there is provided the entrance to the cylinder block water pump.The engine-cooling system of the present invention, its cylinder cap circulation waterway and cylinder body circulation waterway are mutually independent, it can realize the cooling respectively to cylinder cap and cylinder body, the cooling water flow that cylinder body can also be passed through is different from the cooling water flow for flowing through cylinder cap, so that cylinder body and cylinder cap can be cooled to respective optimum temperature at the same time, and then it is effectively improved the performance of engine.
Description
Technical field
The present invention relates to automobile cooling system technical field, and in particular to a kind of engine-cooling system.
Background technology
The effect of engine-cooling system is to ensure that engine works in suitable temperature range, only guaranteed engine
Operating temperature it is suitable, engine is obtained good dynamic property, economy and emission performance.With, national oil consumption and
Abgasgesetz it is increasingly stringent, it is necessary to which cooling system is more accurate to the temperature control of engine.
As shown in Figure 1, being existing engine-cooling system, the arrow in figure represents the flow direction of cooling water, it is usually wrapped
Include cylinder body 11, cylinder cap 12, radiator 14, common water pump 13, warm-air drier and selective catalytic reduction system operating (Selective
Catalytic Reduction, abbreviation SCR) etc. 16, oil cooler and exhaust gas recycling system (Exhaust Gas
Recirculation, abbreviation EGR) etc. 17 and thermostat 15, it is that the engine-cooling system is carried out by thermostat 15
Systemic circulation and the control of partial circulating, its cylinder body water route are connected and are arranged in series with cylinder cap water route, this causes cylinder body water route and cylinder
Cooling water flow in lid water route is identical, however, since cylinder body and cylinder cap are different to the demand of cooling water flow, i.e., cylinder cap is to cold
But the demand of water flow is more than demand of the cylinder body to cooling water flow, so that cylinder body and cylinder cap cannot be cooled to each at the same time
Optimum temperature, so that the poor-performing of engine.
The content of the invention
The object of the present invention is to provide a kind of engine-cooling system, to solve the poor-performing of engine in the prior art
The problem of.
To achieve the above object, the present invention provides following technical solution：
A kind of engine-cooling system, it includes mutually independent cylinder cap circulation waterway and cylinder body circulation waterway, the cylinder
It is disposed with cylinder cap water pump, cylinder cap on lid circulation waterway, the cooling water in the cylinder cap circulation waterway is by the cylinder cap water pump
Outlet outflow after, by the cylinder cap, there is provided the entrance to the cylinder cap water pump；Set gradually on the cylinder body circulation waterway
There are cylinder block water pump, a cylinder body, after the cooling water in the cylinder body circulation waterway is by the outlet outflow of the cylinder block water pump, by described
Cylinder body, there is provided the entrance to the cylinder block water pump.
Preferably, the water outlet positioned at the cylinder cap and the cylinder cap water pump are additionally provided with the cylinder cap circulation waterway
The first valve body and cylinder cap radiator between entrance, the cooling water flowed out by the water outlet of the cylinder cap is after first valve body
It is divided into first flow path and second flow path, after the first flow path is by the cylinder cap radiator, there is provided to the cylinder cap water pump
Entrance；The second flow path flows directly into the entrance of the cylinder cap water pump.
Preferably, be additionally provided with the cylinder cap circulation waterway water outlet and first valve body positioned at the cylinder cap it
Between the second valve body, warm-air drier and SCR, by the cylinder cap water outlet flow out cooling water be divided into after second valve body
3rd flow path and the 4th flow path, the 3rd flow path flow into after the warm-air drier, the SCR converge with the 4th flow path
First valve body.
Preferably, the cylinder cap water pump is the first electric-controlled intelligent water pump, and first valve body and second valve body are
First electric-controlled intelligent triple valve；The first temperature biography is both provided with the cylinder cap, first valve body and second valve body
Sensor；The cylinder cap water pump, first valve body, second valve body and each first temperature sensor are electric with automobile
Sub-control unit is electrically connected.
Preferably, the water outlet positioned at the cylinder body and the cylinder block water pump are additionally provided with the cylinder body circulation waterway
The 3rd valve body and cylinder body radiator between entrance, the cooling water flowed out by the water outlet of the cylinder body is after the 3rd valve body
It is divided into the 5th flow path and the 6th flow path, after the 5th flow path is by the cylinder body radiator, there is provided to the cylinder block water pump
Entrance；6th flow path flows directly into the entrance of the cylinder block water pump.
Preferably, oil cooler, EGR are additionally provided with the cylinder body circulation waterway and positioned at the cylinder block water pump
Export the 4th valve body between the water inlet of the cylinder body, the cooling water flowed out by the outlet of the cylinder block water pump is through described the
It is divided into the 7th flow path and the 8th flow path after four valve bodies, the 7th flow path flows into the cylinder body, and the 8th flow path is through the machine
After oil cooler, the EGR, the cooling water flowed out with the water outlet of the cylinder body converges, and flows into the 3rd valve body.
Preferably, the cylinder block water pump is the second electric-controlled intelligent water pump, and the 3rd valve body and the 4th valve body are
Second electric-controlled intelligent triple valve；Second temperature sensing is respectively provided with the cylinder body, the 3rd valve body and the 4th valve body
Device；The cylinder block water pump, the 3rd valve body, the 4th valve body and each second temperature sensor are and automotive electronics
Control unit is electrically connected.
The beneficial effects of the present invention are：
The engine-cooling system of the present invention, its cylinder cap circulation waterway and cylinder body circulation waterway be it is mutually independent, can
Realize the cooling respectively to cylinder cap and cylinder body, additionally it is possible to the cooling water flow for passing through cylinder body and the cooling current for flowing through cylinder cap
Amount is different, so that cylinder body and cylinder cap can be cooled to respective optimum temperature at the same time, and then is effectively improved and starts
The performance of machine.
Brief description of the drawings
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, below will be to institute in embodiment
Need attached drawing to be used to be briefly described, and the specific embodiment of the present invention will be made further specifically with reference to attached drawing
It is bright, wherein
Fig. 1 is the schematic diagram of available engine cooling system；
Fig. 2 is the schematic diagram of engine-cooling system provided in an embodiment of the present invention.
Marked in attached drawing：
11st, cylinder body 12, cylinder cap 13, common water pump 14, radiator 15, thermostat
16th, warm-air drier, SCR etc. 17, oil cooler, EGR etc. 21, cylinder cap
22nd, cylinder cap water pump 23, the first valve body 24, cylinder cap radiator 25, the second valve body
26th, warm-air drier, SCR etc. 31, cylinder body 32, cylinder block water pump 33, the 3rd valve body
34th, cylinder body radiator 35, the 4th valve body 36, oil cooler, EGR etc.
41st, first flow path 42, second flow path 43, the 3rd flow path 44, the 4th flow path
45th, the 5th flow path 46, the 6th flow path 47, the 7th flow path 48, the 8th flow path
Embodiment
In order to make those skilled in the art more fully understand technical scheme, below in conjunction with specific embodiment pair
This programme is further discussed in detail.
As shown in Fig. 2, an embodiment of the present invention provides a kind of engine-cooling system, it includes mutually independent cylinder cap and follows
Ring water route and cylinder body circulation waterway, are disposed with cylinder cap water pump 22, cylinder cap 21 on cylinder cap circulation waterway, in cylinder cap circulation waterway
Cooling water by cylinder cap water pump 22 outlet outflow after, by cylinder cap 21, there is provided the entrance to cylinder cap water pump 22；Cylinder body recirculated water
It is disposed with cylinder block water pump 32, cylinder body 31 on road, the cooling water in cylinder body circulation waterway is flowed out by the outlet of cylinder block water pump 32
Afterwards, by cylinder body 31, there is provided the entrance to cylinder block water pump 32.It is understood that the arrow in figure represents the flow direction of cooling water.
Engine-cooling system provided in an embodiment of the present invention, its cylinder cap circulation waterway and cylinder body circulation waterway are mutually solely
Vertical, it can realize the cooling respectively to cylinder cap 21 and cylinder body 31, additionally it is possible to pass through the cooling water flow and stream of cylinder body 31
Cooling water flow through cylinder cap 21 is different, so that cylinder body 31 and cylinder cap 21 can be cooled to respective optimum temperature at the same time
Degree, and then it is effectively improved the performance of engine.
Further, it is also provided with being located at the water outlet of cylinder cap 21 and entering for cylinder cap water pump 22 on cylinder cap circulation waterway
The first valve body 23 and cylinder cap radiator 24 between mouthful, the cooling water flowed out by the water outlet of cylinder cap 21 divide after the first valve body 23
For first flow path 41 and second flow path 42, after first flow path 41 is by cylinder cap radiator 24, there is provided the entrance to cylinder cap water pump 22；
Second flow path 42 flows directly into the entrance of cylinder cap water pump 22.Cooling water can be so controlled by the first valve body 23 whether from cylinder cap
In radiator 24 by, either reduce or increase pass through from cylinder cap radiator 24 cooling water number so that cylinder
Lid 21 can preferably meet temperature requirement of the engine under different operating modes, so that engine can be protected under each operating mode
Hold preferably performance.
In another embodiment provided by the invention, the water outlet positioned at cylinder cap 21 is also provided with cylinder cap circulation waterway
The second valve body 25, warm-air drier and SCR mouthful between the first valve body 23, the cooling water flowed out by the water outlet of cylinder cap 21 is through the
It is divided into the 3rd flow path 43 and the 4th flow path 44 after two valve bodies 25, the 3rd flow path 43 converges through warm-air drier, SCR and the 4th flow path 44
Afterwards, the first valve body 23 is flowed into.Pass through this technical solution so that from cylinder cap 21 flow out cooling water institute band heat be capable of providing to
Warm-air drier, additionally it is possible to make SCR therefrom obtain heat and thaw；Meanwhile it can be controlled into the 3rd flow path by the second valve body 25
The number of the flow of 43 cooling water, so that warm-air drier and SCR are functional, so that engine is in each performance of operating condition
It is preferable.
Further, cylinder cap water pump 22 can be the first electric-controlled intelligent water pump, and the first valve body 23 and the second valve body 25 are
First electric-controlled intelligent triple valve；The first temperature sensor is both provided with cylinder cap 21, the first valve body 23 and the second valve body 25；Cylinder
Lid water pump 22, the first valve body 23, the second valve body 25 and each first temperature sensor are electrically connected with vehicle electronic control unit.
Due to the water pump of existing cooling system, the mechanical water pump usually driven by front end wheel train, it pumps ability by engine
The influence of rotating speed, i.e. engine speed are faster, and water pump water pumping ability is stronger, and engine speed is slower, and water pump water pumping ability is poorer,
But actually under many operating modes, engine can send out the quantity of circulating water demand of the cooling water of cooling system and the water pumping amount of water pump
Life deviates from, such as in the winter time under environment, the operating of traditional water pump can cause heat engine speed to slow down, so as to cause engine integrally to be transported
Turn situation and become grain, in another example in high temperature environments, engine is operated, it is necessary to largely cool down under the operating mode of low speed high load
Water, but since its rotating speed is low, quantity of circulating water is less than normal, is then possible to bring larger risk to vehicle thermal balance at this time, triggers
The failure of described automobile " boiling " in common saying.In addition, existing cooling system faces the circulation waterway to become increasingly complex, its is right
The control ability of each bypass flow is relatively poor in circulation waterway, simply by arrangement pipeline trend, length and caliber into
The distribution of row flow, such a method of salary distribution can only be a kind of allocation proportions of fixation, and flow point can not be realized according to different operating modes
The adjusting matched somebody with somebody, and with the even more complex of the duty of engine, its everywhere cooling system branch quantity of circulating water demand percentage not
It is fixed, but with the different operating mode real-time changes of engine, this make it that the assignment of traffic mode of existing cooling system can not
Meet the flow distribution according to need of each branch, simple and crude can only increase in the case of a relatively reasonable pipeline arrangement
The integral pump outlet capacity of water pump, and then meet the greatest requirements of quantity of circulating water everywhere, this will cause the waste of energy, reduce
The thermal efficiency of engine entirety.And the technical solution preferably solves the above problem, each first temperature sensor can be real-time
Water temperature signal is fed back to vehicle electronic control unit, vehicle electronic control unit will be electric to each first according to water temperature signal everywhere
Control Intelligent three-way valve and the first electric-controlled intelligent water pump are controlled adjusting；First electric-controlled intelligent water pump can be in Vehicle Electronic Control
Zero-turn speed is realized under the control of unit to the step-less adjustment between maximum water pumping amount, such as at low ambient temperatures, automotive electronics control
Unit processed will control its inoperative or be operated with less water pumping amount, to realize the quick heat engine of engine, similarly, work as hair
In low speed high load, vehicle electronic control unit can control it to run at high speed, be used for motivation according to actual water temperature signal
Quantity of circulating water is increased, to ensure vehicle thermal balance；Each first electric-controlled intelligent triple valve then can be in vehicle electronic control unit
Under control, the actual internal area of each branch is regulated and controled in real time, according to different vehicle working conditions, increases or reduce each branch
Actual internal area, the accurate of each bypass flow is adjusted with realizing, the actual flow of each branch is met theory as far as possible
Requirements, make water pump to meet cooling requirement everywhere with less water pumping power, so not only energy saving, but also can dissipate cylinder cap
The branch where branch, warm-air drier and SCR where hot device has suitable flow, improves the overall thermal effect of engine
Rate.
Further, it is also provided with being located at the water outlet of cylinder body 31 and entering for cylinder block water pump 32 on cylinder body circulation waterway
The 3rd valve body 33 and cylinder body radiator 34 between mouthful, the cooling water flowed out by the water outlet of cylinder body 31 divide after the 3rd valve body 33
For the 5th flow path 45 and the 6th flow path 46, after the 5th flow path 45 is by cylinder body radiator 34, there is provided the entrance to cylinder block water pump 32；
6th flow path 46 flows directly into the entrance of cylinder block water pump 32.Cooling water can be so controlled by the 3rd valve body 33 whether from cylinder body
In radiator 34 by, either reduce or increase pass through from cylinder body radiator 34 cooling water number so that cylinder
Body 31 can preferably meet temperature requirement of the engine under different operating modes, so that engine can be protected under each operating mode
Hold preferably performance.
In another embodiment provided by the invention, be also provided with cylinder body circulation waterway oil cooler, EGR with
And the 4th valve body 35 between the water inlet of the outlet of cylinder block water pump 32 and cylinder body 31, flowed out by the outlet of cylinder block water pump 32
Cooling water be divided into the 7th flow path 47 and the 8th flow path 48 after the 4th valve body 35, the 7th flow path 47 flows into cylinder body 31, the 8th stream
After oil cooler, EGR, the cooling water flowed out with the water outlet of cylinder body 31 converges, and flows into the 3rd valve body 33 on road 48.Pass through this
Technical solution so that the cooling water flowed out from cylinder body 31 can cool down machine oil and EGR；Meanwhile pass through the 3rd valve body 33
The number of the flow of the cooling water into the 8th flow path 48 can be controlled, so that oil temperature is suitable, EGR is functional,
So that engine is respectively provided with preferable performance in each operating mode.
Further, cylinder block water pump 32 can be the second electric-controlled intelligent water pump, and the 3rd valve body 33 and the 4th valve body 35 are
Second electric-controlled intelligent triple valve；Second temperature sensor is respectively provided with cylinder body 31, the 3rd valve body 33 and the 4th valve body 35；Cylinder body
Water pump 32, the 3rd valve body 33, the 4th valve body 35 and each second temperature sensor are electrically connected with vehicle electronic control unit.Adopt
With this technical solution, each second temperature sensor can feed back water temperature signal, automotive electronics to vehicle electronic control unit in real time
Control unit will be controlled each second electric-controlled intelligent triple valve and the second electric-controlled intelligent water pump according to water temperature signal everywhere
Adjust；Second electric-controlled intelligent water pump can realize zero-turn speed between maximum water pumping amount under the control of vehicle electronic control unit
Step-less adjustment, such as at low ambient temperatures, vehicle electronic control unit will control its inoperative or with less water pumping
Amount operating, to realize the quick heat engine of engine, similarly, when engine is in low speed high load, vehicle electronic control unit can
According to actual water temperature signal, to control it to run at high speed, for increasing quantity of circulating water, to ensure vehicle thermal balance；Each second
Electric-controlled intelligent triple valve can then carry out in real time the actual internal area of each branch under the control of vehicle electronic control unit
Regulation and control, according to different vehicle working conditions, increase or reduce the actual internal area of each branch, to realize the essence to each bypass flow
Really adjust, the actual flow of each branch is met theory demands value as far as possible, water pump is met with less water pumping power
Cooling requirement everywhere, it is so not only energy saving, but also where can making branch where cylinder body radiator, oil cooler and EGR
Branch has suitable flow so that the overall thermal efficiency of engine has obtained greatly improving.
It is understood that some incidental function branches of engine-cooling system can substantially be divided into two classes, first
Class is the branch for needing coolant to cool down it, such as oil cooler, EGR etc. 36, and in addition one kind is needed from cooling system
The middle branch for obtaining heat, such as warm-air drier, SCR etc. 26.Since the heat that the cylinder cover water jacket of engine is obtained is more than cylinder body
Water jacket, the branch therefore, it is necessary to obtain heat from cooling system are divided into cylinder cap circulation waterway, it is necessary to cold in the present invention
But the branch that system cools down it is divided into cylinder body circulation waterway in the present invention.
The basic functional principle of engine-cooling system provided in an embodiment of the present invention is, by taking cylinder cap circulation waterway as an example：
When cold starts, vehicle electronic control unit meeting application cylider cover water pump 22 is not pumped or pumped less, makes the rapid heat engine of engine,
Vehicle electronic control unit controls the first valve body 23 to close first flow path 41 at the same time, and controls the second valve body 25 to close the 3rd flow path
43, under the control strategy, cooling water will be by cylinder cap water pump 22,23 structure of cylinder cap 21, the second valve body 25 and the first valve body
Into major cycle water route on circulate so that the water temperature of cooling water can with engine operate can rapid increase, complete heat
Machine；After water temperature, which rises, completes heat engine, under the control of vehicle electronic control unit, the water pumping amount of cylinder cap water pump 22 gradually increases
Add, gradually increase is into the flow in first flow path 41 for the first valve body 23, to meet the thermally equilibrated demand of vehicle, while the second valve
Body 25 is according to the real-time working situation of vehicle, and appropriate opening and closing or increase and decrease enter the flow in the 3rd flow path 43, to meet each function
The demand of module.The operation principle of cylinder body circulation waterway is identical with the operation principle of cylinder cap circulation waterway, and thus, the present invention is implemented
The engine-cooling system that example provides, can make system be in minimum flow resistance in the case where meeting engine actual demand
Operated with water internal circulating load, it is more energy efficient, it is more efficient, while cavitation (in risk can also be reduced, make the operation that system is safer.
Engine-cooling system provided in an embodiment of the present invention, can realize the rapid heat engine of engine, and use is optimum
Quantity of circulating water ensures that engine works in suitable temperature range, while realizes warm-air drier, SCR, EGR, oil cooler etc.
Each cooling system bypass flow more accurately controls, the needs of preferably to meet everywhere.
It the above is only the preferred embodiment of the present invention, it should be pointed out that these embodiments are merely to illustrate the present invention
Rather than limit the scope of the invention, moreover, after present disclosure has been read, relevant technical staff in the field can be with
Various changes or modification are made to the present invention, such equivalent forms equally fall into the model that the application the appended claims are limited
Enclose.
Claims (7)
1. a kind of engine-cooling system, it is characterised in that it includes mutually independent cylinder cap circulation waterway and cylinder body recirculated water
Road, is disposed with cylinder cap water pump, cylinder cap on the cylinder cap circulation waterway, and the cooling water in the cylinder cap circulation waterway is by described
After the outlet outflow of cylinder cap water pump, by the cylinder cap, there is provided the entrance to the cylinder cap water pump；On the cylinder body circulation waterway
It is disposed with cylinder block water pump, cylinder body, after the cooling water in the cylinder body circulation waterway is by the outlet outflow of the cylinder block water pump,
By the cylinder body, there is provided the entrance to the cylinder block water pump.
2. engine-cooling system according to claim 1, it is characterised in that be additionally provided with the cylinder cap circulation waterway
The first valve body and cylinder cap radiator between the water outlet of the cylinder cap and the entrance of the cylinder cap water pump, by the cylinder cap
Water outlet outflow cooling water be divided into first flow path and second flow path after first valve body, the first flow path passes through institute
After stating cylinder cap radiator, there is provided the entrance to the cylinder cap water pump；The second flow path flows directly into entering for the cylinder cap water pump
Mouthful.
3. engine-cooling system according to claim 2, it is characterised in that be additionally provided with the cylinder cap circulation waterway
The second valve body, warm-air drier and SCR between the water outlet and first valve body of the cylinder cap, by going out for the cylinder cap
The cooling water of mouth of a river outflow is divided into the 3rd flow path and the 4th flow path after second valve body, and the 3rd flow path is through the warm wind
After machine, the SCR converge with the 4th flow path, first valve body is flowed into.
4. engine-cooling system according to claim 3, it is characterised in that the cylinder cap water pump is the first electric-controlled intelligent
Water pump, first valve body and second valve body are the first electric-controlled intelligent triple valve；The cylinder cap, first valve body with
And it is both provided with the first temperature sensor on second valve body；The cylinder cap water pump, first valve body, second valve body
And each first temperature sensor is electrically connected with vehicle electronic control unit.
5. engine-cooling system according to claim 1, it is characterised in that be additionally provided with the cylinder body circulation waterway
The 3rd valve body and cylinder body radiator between the water outlet of the cylinder body and the entrance of the cylinder block water pump, by the cylinder body
Water outlet outflow cooling water be divided into the 5th flow path and the 6th flow path after the 3rd valve body, the 5th flow path passes through institute
After stating cylinder body radiator, there is provided the entrance to the cylinder block water pump；6th flow path flows directly into entering for the cylinder block water pump
Mouthful.
6. engine-cooling system according to claim 5, it is characterised in that be additionally provided with the cylinder body circulation waterway
Oil cooler, EGR and the 4th valve body exported between the water inlet of the cylinder body positioned at the cylinder block water pump, by institute
The cooling water for stating the outlet outflow of cylinder block water pump is divided into the 7th flow path and the 8th flow path, the 7th stream after the 4th valve body
Road flows into the cylinder body, and the 8th flow path flows out after the oil cooler, the EGR with the water outlet of the cylinder body
Cooling water converge, flow into the 3rd valve body.
7. engine-cooling system according to claim 6, it is characterised in that the cylinder block water pump is the second electric-controlled intelligent
Water pump, the 3rd valve body and the 4th valve body are the second electric-controlled intelligent triple valve；The cylinder body, the 3rd valve body with
And it is respectively provided with second temperature sensor on the 4th valve body；The cylinder block water pump, the 3rd valve body, the 4th valve body with
And each second temperature sensor is electrically connected with vehicle electronic control unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711039657.9A CN107905879A (en) | 2017-10-30 | 2017-10-30 | A kind of engine-cooling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711039657.9A CN107905879A (en) | 2017-10-30 | 2017-10-30 | A kind of engine-cooling system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107905879A true CN107905879A (en) | 2018-04-13 |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109083730A (en) * | 2018-07-28 | 2018-12-25 | 襄阳晟欣机电有限公司 | A kind of internal-external double circulation diesel engine water cooling plant |
| 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 |
| CN110685789A (en) * | 2019-10-12 | 2020-01-14 | 江苏徐工工程机械研究院有限公司 | Cooling system, engineering vehicle, control method and controller |
| CN110714832A (en) * | 2019-10-21 | 2020-01-21 | 上海中船三井造船柴油机有限公司 | Cylinder sleeve cooling water system and method for low-speed diesel engine for dual-fuel ship |
| CN110805948A (en) * | 2018-08-06 | 2020-02-18 | 成都安美科科技有限公司 | Cogeneration control system |
| CN110886646A (en) * | 2019-11-29 | 2020-03-17 | 安徽江淮汽车集团股份有限公司 | Engine cooling system |
| CN111022172A (en) * | 2019-11-28 | 2020-04-17 | 哈尔滨东安汽车动力股份有限公司 | Double-ball valve type integrated thermal management module |
| CN111396186A (en) * | 2020-04-16 | 2020-07-10 | 昆明云内动力股份有限公司 | Split type cooling system and method for engine |
| CN111852640A (en) * | 2019-04-29 | 2020-10-30 | 上海汽车集团股份有限公司 | Thermostat, thermostat control method and engine cooling system |
| CN112065557A (en) * | 2020-08-14 | 2020-12-11 | 宁波吉利罗佑发动机零部件有限公司 | Cooling system, control method and vehicle |
| CN112098104A (en) * | 2020-07-30 | 2020-12-18 | 东风汽车集团有限公司 | Temperature control valve rack of thermal management system |
| CN114991929A (en) * | 2021-03-01 | 2022-09-02 | 比亚迪股份有限公司 | Vehicle and engine thereof |
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| CN107100713A (en) * | 2016-02-23 | 2017-08-29 | 上海汽车集团股份有限公司 | Vehicle and its engine |
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Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109083730A (en) * | 2018-07-28 | 2018-12-25 | 襄阳晟欣机电有限公司 | A kind of internal-external double circulation diesel engine water cooling plant |
| CN110805948A (en) * | 2018-08-06 | 2020-02-18 | 成都安美科科技有限公司 | Cogeneration control system |
| CN111852640A (en) * | 2019-04-29 | 2020-10-30 | 上海汽车集团股份有限公司 | Thermostat, thermostat control method and engine cooling system |
| CN111852640B (en) * | 2019-04-29 | 2022-02-18 | 上海汽车集团股份有限公司 | Thermostat, thermostat control method and engine cooling system |
| 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 |
| CN110685789A (en) * | 2019-10-12 | 2020-01-14 | 江苏徐工工程机械研究院有限公司 | Cooling system, engineering vehicle, control method and controller |
| CN110714832B (en) * | 2019-10-21 | 2020-11-10 | 上海中船三井造船柴油机有限公司 | Cylinder sleeve cooling water system and method for low-speed diesel engine for dual-fuel ship |
| CN110714832A (en) * | 2019-10-21 | 2020-01-21 | 上海中船三井造船柴油机有限公司 | Cylinder sleeve cooling water system and method for low-speed diesel engine for dual-fuel ship |
| CN111022172A (en) * | 2019-11-28 | 2020-04-17 | 哈尔滨东安汽车动力股份有限公司 | Double-ball valve type integrated thermal management module |
| CN110886646A (en) * | 2019-11-29 | 2020-03-17 | 安徽江淮汽车集团股份有限公司 | Engine cooling system |
| CN111396186A (en) * | 2020-04-16 | 2020-07-10 | 昆明云内动力股份有限公司 | Split type cooling system and method for engine |
| CN111396186B (en) * | 2020-04-16 | 2023-08-08 | 昆明云内动力股份有限公司 | Split type cooling system and method for engine |
| CN112098104A (en) * | 2020-07-30 | 2020-12-18 | 东风汽车集团有限公司 | Temperature control valve rack of thermal management system |
| CN112098104B (en) * | 2020-07-30 | 2022-03-29 | 东风汽车集团有限公司 | Temperature control valve rack of thermal management system |
| CN112065557A (en) * | 2020-08-14 | 2020-12-11 | 宁波吉利罗佑发动机零部件有限公司 | Cooling system, control method and vehicle |
| CN112065557B (en) * | 2020-08-14 | 2022-05-03 | 宁波吉利罗佑发动机零部件有限公司 | Cooling system, control method and vehicle |
| CN114991929A (en) * | 2021-03-01 | 2022-09-02 | 比亚迪股份有限公司 | Vehicle and engine thereof |
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Application publication date: 20180413 |