CN107023376B - The cooling device of engine thermal management method, control valve and engine cylinder body - Google Patents
The cooling device of engine thermal management method, control valve and engine cylinder body Download PDFInfo
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- CN107023376B CN107023376B CN201610067781.5A CN201610067781A CN107023376B CN 107023376 B CN107023376 B CN 107023376B CN 201610067781 A CN201610067781 A CN 201610067781A CN 107023376 B CN107023376 B CN 107023376B
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- pipeline
- temperature
- control valve
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- engine
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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
- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/02—Heating, cooling or ventilating [HVAC] devices the heat being derived from the propulsion plant
- B60H1/04—Heating, cooling or ventilating [HVAC] devices the heat being derived from the propulsion plant from cooling liquid of the plant
-
- 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
-
- 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
- F01P2050/24—Hybrid vehicles
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The present invention relates to power device fields, a kind of engine thermal management method is provided, the cooling device of control valve and engine cylinder body, High-temperature cooling pipeline and sub-cooled pipeline is respectively set in the high-temperature area and low-temperature region of engine in the engine thermal management method, and the High-temperature cooling pipeline described in connection, the sub-cooled pipeline, control valve is set on pipeline between the cylinder cover water jacket and the warm-air drier, wherein, the first operating condition that the control valve has on state different, second operating condition and third operating condition, control valve can switch between different operating conditions to adjust the cooling capacity of the High-temperature cooling pipeline and the sub-cooled pipeline.Engine thermal management method of the present invention can adjust separately the cooling capacity of High-temperature cooling pipeline and sub-cooled pipeline as needed, avoid the problems such as tendency of combustion knock caused by the cooling capacity irrational distribution of cooling line is high and frictional force is big.
Description
Technical field
The present invention relates to power device field, in particular to a kind of engine thermal management method, control valve and engine cylinder
The cooling device of body.
Background technique
With the development of automotive engineering, the power of engine constantly increases, and thermic load is also higher and higher, and engine cool
The quality of system is directly related to the service life of engine.
The cylinder body water jacket of engine is mainly the cooling to engine chamber and cylinder block, engine chamber and cylinder
The heat of body passes to the coolant liquid to cylinder body water jacket, and coolant liquid is recycled to radiator under the driving of pump and radiates, heat dissipation
Coolant liquid afterwards is recycled to cylinder body water jacket of engine and absorbs heat, and so circulation is so that engine work.
Flow velocity, the flow of coolant liquid in the vertical direction in cylinder body water jacket is inconsistent, the cooling capacity point of cylinder body water jacket
Cloth is unreasonable, is embodied in, close to combustion chamber region cooling capacity it is lower, and far from combustion chamber region cooling capacity compared with
It is high.And engine cylinder body leads to engine cylinder close to the region exactly maximum region of engine cylinder body heat dissipation capacity of combustion chamber
Regional temperature of the body close to combustion chamber is higher, the pinking tendency of engine is promoted, simultaneously as engine cylinder body is far from combustion chamber
Portion temperature it is lower, increase the frictional force of piston and casing wall.
Thus, it is desirable to have a kind of engine thermal management method for the cooling performance that can improve engine cylinder body can overcome
Or at least mitigate the drawbacks described above of the prior art.
Summary of the invention
In view of this, the present invention is directed to propose a kind of engine thermal management method, to improve the cooling performance of engine.
In order to achieve the above objectives, the technical scheme of the present invention is realized as follows:
High-temperature cooling pipeline is respectively set in the high-temperature area and low-temperature region of engine in a kind of engine thermal management method
With sub-cooled pipeline, it is arranged between the High-temperature cooling pipeline, the sub-cooled pipeline, cylinder cover water jacket and warm-air drier
The pipeline of intercommunication, and the High-temperature cooling pipeline described in connection, the sub-cooled pipeline, the cylinder cover water jacket and the warm wind
Control valve is set on pipeline between machine, wherein the control valve is in the first operating condition, High-temperature cooling pipeline and institute described in connection
The pipeline between cylinder cover water jacket is stated, the pipeline between the sub-cooled pipeline and the warm-air drier is disconnected；The control valve exists
When the second operating condition, pipeline and the sub-cooled pipeline between High-temperature cooling pipeline and the cylinder cover water jacket described in connection with
Pipeline between the warm-air drier；The control valve disconnects the High-temperature cooling pipeline and the cylinder head water in third operating condition
The pipeline between pipeline and the sub-cooled pipeline and the warm-air drier between set.
Further, judged according to the temperature of the coolant liquid in the High-temperature cooling pipeline and the sub-cooled pipeline
The operating condition of the engine, when the temperature of the coolant liquid in the High-temperature cooling pipeline is higher than first predetermined value, and the low temperature
When the temperature of coolant liquid in cooling line is below or equal to second predetermined value, the control valve is in first operating condition；
When the temperature of the coolant liquid in the High-temperature cooling pipeline is higher than first predetermined value, and the coolant liquid in the sub-cooled pipeline
Temperature be higher than second predetermined value when, the control valve is in second operating condition；And when in the High-temperature cooling pipeline
The temperature of coolant liquid be below or equal to first predetermined value, and the temperature of the coolant liquid in the sub-cooled pipeline be lower than or
When equal to second predetermined value, the control valve is in the third operating condition.
Further, pass through High-temperature cooling pipeline described in linear regulation and/or the coolant liquid in the sub-cooled pipeline
Circulation rate carry out the cooling capacity of High-temperature cooling pipeline described in Serial regulation and/or the sub-cooled pipeline.
Further, connecting line is provided between the warm-air drier and radiator, the job state of the radiator is logical
Cross the thermostat control being arranged on the export pipeline of the radiator.
Compared with the existing technology, engine thermal management method of the present invention has the advantage that
The high-temperature area of engine and low-temperature region are cooled down respectively by High-temperature cooling pipeline and sub-cooled pipeline,
And the on state of High-temperature cooling pipeline and sub-cooled pipeline is adjusted separately by control valve, and then adjust separately as needed
The cooling capacity of High-temperature cooling pipeline and sub-cooled pipeline avoids caused by the cooling capacity irrational distribution of cooling line
The problems such as combustion knock tendency is high and frictional force is big, is effectively improved the thermal management effect of engine.
Another object of the present invention is to propose a kind of control valve, with the above-mentioned engine thermal management method of better implementation.
In order to achieve the above objectives, the technical scheme of the present invention is realized as follows:
A kind of control valve, the control valve for implement according to the method described above, the control valve include: spool,
With the High-temperature cooling pipeline outlet connection first entrance, connect with the entrance of the cylinder cover water jacket first outlet, and
The second entrance of the sub-cooled piping connection and the second outlet being connect with the coolant liquid circulation line, wherein
When the spool is in first area, the first entrance and the first outlet and the second entrance and
The second outlet disconnects；
When the spool is in second area, the first entrance and first outlet conducting, the second entrance
It is disconnected with the second outlet；And
When the spool is in third region, the first entrance and the first outlet and the second entrance and
The second outlet is both turned on,
The spool can be moved along the length direction of the spool in the first area, the second area and institute
It states and switches between third region.
Further, the spool further include: First Transition region, when the spool is in the First Transition region,
The first entrance and the first outlet are not exclusively connected, and the second entrance and the second outlet disconnect；And second
Transitional region, when the spool is in second transitional region, the first entrance and first outlet conducting, described the
Two entrances and the second outlet are not exclusively connected.
Further, in the First Transition region and/or second transitional region, the spool can be along the valve
The length direction of core is mobile, with the conducting degree or Serial regulation of first entrance described in Serial regulation and the first outlet
The conducting degree of the second entrance and the second outlet.
Further, the spool is formed as cylindrical body, and in the second area, is formed with and enables to described first
First removal material portion of entrance and first outlet conducting is formed in the third region and enables to described first
The the second removal material portion and the second entrance and the second outlet is enabled to lead that entrance and the first outlet are connected
Logical third removes material portion, wherein the second removal material portion and third removal material part She Zhi not be described
At the two sides of spool.
Further, the first removal material portion and second removal material portion are continuously set in the side of the spool
It sets.
Compared with the existing technology, control valve of the present invention has the advantage that
The control valve is integrated with three regions on a spool, and then can realize High-temperature cooling by a control valve
Pipeline and sub-cooled pipeline reduce the quantity for the valve arranged needed for engine, simplification is started in the adjustment of three kinds of states of cooling
Machine structure, and reduce the use and manufacturing cost of engine.
Another object of the present invention is to propose a kind of engine cylinder body, to improve the cooling effect of engine cylinder body.
In order to achieve the above objectives, the technical scheme of the present invention is realized as follows:
A kind of engine cylinder body, the engine cylinder body include cylinder body water jacket, close to the high-temperature area of combustion chamber and separate
The low-temperature region of combustion chamber, the cylinder body water jacket are arranged in the engine cylinder body for conveying to the engine cylinder body
Carry out cooling coolant liquid, the cylinder body water jacket is separated into each other disconnected first by horizontally extending partition
Chamber and second chamber, wherein the first chamber positioned at the top of the engine cylinder body is for cooling down the high-temperature region
Domain, the second chamber positioned at the lower part of the engine cylinder body are used to cool down the low-temperature region, the first chamber
Inlet and the inlet of the second chamber are connected to liquid feed device respectively, the first chamber liquid outlet, described
The pipeline of intercommunication is set between the liquid outlets of two chambers, cylinder cover water jacket and warm-air drier, and the liquid outlet of the first chamber,
It is arranged on pipeline between the liquid outlet of the second chamber, the cylinder cover water jacket and the warm-air drier according to described above
Control valve, the first entrance of the control valve are connect with the liquid outlet of the first chamber, the first outlet of the control valve with
The inlet of the cylinder cover water jacket connects, and the second entrance of the control valve is connect with the liquid outlet of the second chamber, described
The second outlet of control valve is connect with the inlet of the warm-air drier.
Further, the volume of the first chamber is less than the volume of the second chamber.
Further, when engine is in engine cold-start operating condition, in the first chamber and the second chamber
Coolant liquid stop circulating；When engine is in warming-up operating condition, the coolant liquid in the first chamber is circulated,
Coolant liquid stopping in the second chamber circulates.
Possessed advantage is identical compared with the existing technology with above-mentioned engine thermal management method for the engine cylinder body,
This is repeated no more.
Other features and advantages of the present invention will the following detailed description will be given in the detailed implementation section.
Detailed description of the invention
The attached drawing for constituting a part of the invention is used to provide further understanding of the present invention, schematic reality of the invention
It applies example and its explanation is used to explain the present invention, do not constitute improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is the schematic diagram of engine cylinder body described in the embodiment of the present invention；
Fig. 2 is the schematic diagram of the spool of control valve described in the embodiment of the present invention；
Fig. 3 is in schematic diagram when third operating condition for the control valve of engine cylinder body described in the embodiment of the present invention；
Fig. 4 is in signal when the first operating condition for the coolant liquid of the control valve of engine cylinder body described in the embodiment of the present invention
Figure；
Fig. 5 is in signal when the second operating condition for the coolant liquid of the control valve of engine cylinder body described in the embodiment of the present invention
Figure.
Description of symbols:
1- cylinder cover water jacket, 2- control valve, 3- coolant liquid circulation line, 4- warm-air drier, 5- engine cylinder body, the first chamber of 51-
Room；52- second chamber, 53- partition, 6- radiator, 7- thermostat, 8- liquid feed device, 9- machine oil cooler, 10- spool,
The first area 101-, 102- second area, 103- third region, 104- first remove material portion, and 105- second removes material portion,
106- third removes material portion.
Specific embodiment
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the present invention can phase
Mutually combination.
In addition, " upper and lower " that is previously mentioned in an embodiment of the present invention, refer to along the vertical direction upper and lower.
The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
According to an aspect of the present invention, a kind of engine thermal management method is provided, in the high-temperature area of engine and low
High-temperature cooling pipeline and sub-cooled pipeline is respectively set in temperature area, the High-temperature cooling pipeline, the sub-cooled pipeline,
The pipeline of intercommunication, and High-temperature cooling pipeline, the sub-cooled described in connection are set between cylinder cover water jacket 1 and warm-air drier 4
Control valve 2 is set on the pipeline between pipeline, cylinder cover water jacket 1 and warm-air drier 4, wherein
Control valve 2 is in the first operating condition, pipeline between High-temperature cooling pipeline and cylinder cover water jacket 1 described in connection, disconnects institute
The pipeline between sub-cooled pipeline and warm-air drier 4 is stated, only the coolant liquid in High-temperature cooling pipeline circulates, and engine is in
It is layered the state of cooling；
Control valve 2 is in the second operating condition, pipeline between High-temperature cooling pipeline and cylinder cover water jacket 1 described in connection and described
Pipeline between sub-cooled pipeline and warm-air drier 4, the equal recycle stream of coolant liquid in High-temperature cooling pipeline and sub-cooled pipeline
Dynamic, engine is in the whole state of cooling；
Control valve 2 in third operating condition, disconnect pipeline between the High-temperature cooling pipeline and the cylinder cover water jacket and
Pipeline between the sub-cooled pipeline and the warm-air drier, the coolant liquid in High-temperature cooling pipeline and sub-cooled pipeline are equal
Stopping circulates, and engine is in stagnant water stationary state, can quickly improve the temperature of engine, realizes rapid warming-up.
The high-temperature area of engine and low-temperature region are cooled down respectively by High-temperature cooling pipeline and sub-cooled pipeline,
And the on state of High-temperature cooling pipeline and sub-cooled pipeline is adjusted separately by control valve 2, and then adjust respectively as needed
The cooling capacity of whole High-temperature cooling pipeline and sub-cooled pipeline, avoids caused by the cooling capacity irrational distribution of cooling line
Combustion knock tendency it is high and the problems such as frictional force is big, be effectively improved the thermal management effect of engine.
Wherein, the intercommunication between the High-temperature cooling pipeline, the sub-cooled pipeline, cylinder cover water jacket 1 and warm-air drier 4
The arrangement form of pipeline can select arrangement form appropriate according to actual needs, can satisfy the demand of being switched on and off.
Control valve 2 is not limited to a control valve in illustrated embodiment, can also be made by multiple valve groups at valve group by the valve group
Obtaining the tool of control valve 2, there are three types of operating conditions appropriate.
Control valve 2 can select corresponding operating condition according to any suitable parameter, and control can also be manually selected by driver
The operating condition of valve 2 processed, user can select mode appropriate according to actual needs.Preferably, according to the High-temperature cooling pipeline and
The temperature of coolant liquid in the sub-cooled pipeline judges the operating condition of the engine, so that coolant liquid is able to maintain suitable
When temperature, it is more accurate to the heat management of engine.
Specifically, when the temperature of the coolant liquid in the High-temperature cooling pipeline is higher than first predetermined value, and the low temperature cold
But when the temperature of the coolant liquid in pipeline is below or equal to second predetermined value, control valve 2 is in first operating condition；When described
The temperature of coolant liquid in High-temperature cooling pipeline is higher than first predetermined value, and the temperature of the coolant liquid in the sub-cooled pipeline
When higher than second predetermined value, control valve 2 is in second operating condition；And the temperature when the coolant liquid in the High-temperature cooling pipeline
Degree is below or equal to first predetermined value, and the temperature of the coolant liquid in the sub-cooled pipeline is pre- below or equal to second
When definite value, control valve 2 is in the third operating condition.The first predetermined value and second predetermined value can select to fit according to actual needs
When numerical value.
Preferably, pass through High-temperature cooling pipeline described in linear regulation and/or the coolant liquid in the sub-cooled pipeline
Circulation rate carrys out the cooling capacity of High-temperature cooling pipeline described in Serial regulation and/or the sub-cooled pipeline, it is possible to understand that
It is that the circulation rate of coolant liquid is faster, the cooling capacity of cooling line is stronger, passes through High-temperature cooling pipeline described in Serial regulation
And/or the cooling capacity in the sub-cooled pipeline, so that the heat management of engine is more in line with use demand, realization is started
The optimal control of the heat of machine.
Referring to Fig. 1, the outlet of cylinder cover water jacket 1 is connect also by pipeline with warm-air drier 4, and used coolant liquid enters warm wind
Machine 4, the coolant liquid in High-temperature cooling pipeline and sub-cooled pipeline finally all enter warm-air drier 4.It is provided on warm-air drier 4 scattered
Thermal is transported to liquid feed device 8 again after capable of radiating to coolant liquid, be supplied again to the height by liquid feed device 8
Warm cooling line and sub-cooled pipeline, and the wind in warm-air drier 4 is also heated, for supplying warm wind to vehicle, coolant liquid exists
Partial circulating is carried out in the cooling system of engine, and (partial circulating: when coolant temperature is lower than predetermined temperature, the valve of thermostat 7 is closed
It closes, the cooling mechanism for making coolant liquid only pass through warm-air drier 4 radiates, and then i.e. flowing to liquid feed device 8 carries out next repeating query
Ring).
Since the cooling capacity of radiator on warm-air drier 4 is limited, it is preferred that being set between warm-air drier 4 and radiator 6
It is equipped with connecting line, the job state of radiator 6 passes through the thermostat 7 being arranged on the export pipeline of radiator 6 and controls.Section temperature
Device 7 can sense the temperature of coolant liquid, valve be opened when the temperature of coolant liquid reaches predetermined value, radiator 6 starts operation, cold
But liquid carried out in the cooling system of engine systemic circulation (systemic circulation: when coolant temperature is beyond predetermined temperature, thermostat 7
Valve open so that coolant liquid is radiated by the cooling mechanism of warm-air drier 4 and radiator 6, then flow to liquid feed device 8 again
Carry out next round circulation).
According to another aspect of the present invention, a kind of control valve is provided, the control valve is for implementing according to described above
Method, control valve 2 include: spool 10, with the High-temperature cooling pipeline outlet connection first entrance, with the cylinder head water
The first outlet of the entrance connection of set connects with the second entrance of the sub-cooled piping connection and with coolant liquid circulation line 3
The second outlet connect, wherein when spool 10 is in first area 101, the first entrance and the first outlet and institute
It states second entrance and the second outlet disconnects；When spool 10 is in second area 102, the first entrance and described
One outlet conducting, the second entrance and the second outlet disconnect；It is described and when spool 10 is in third region 103
First entrance and the first outlet and the second entrance and the second outlet are both turned on, and spool 10 can be along spool 10
Length direction it is mobile to switch between first area 101, second area 102 and third region 103.Wherein, spool 10
Driving can select any suitable mode according to actual needs, for example, electromagnetic drive, stepper motor etc..
The control valve 2 is integrated with three regions on a spool 10, and then can realize high temperature by a control valve 2
Cooling line and sub-cooled pipeline reduce the quantity for the valve arranged needed for engine, simplify in the adjustment of three kinds of states of cooling
Engine structure, and reduce the use and manufacturing cost of engine.
Preferably, spool 10 further include: First Transition region, when spool 10 is in First Transition region, described first enters
Mouth and the first outlet are not exclusively connected, and the second entrance and the second outlet disconnect；And second transitional region, when
Spool 10 is in second transitional region, the first entrance and first outlet conducting, the second entrance and described
Second outlet is not exclusively connected.So that the adjustment mode of control valve 2 is more diversified, the cooling adjusted by the control valve 2
The circulation rate of liquid is more in line with the thermal management requirements of engine.
Preferably, in the First Transition region and/or second transitional region, spool 10 can be along the length of spool 10
It is mobile to spend direction, with described in the conducting degree or Serial regulation of first entrance described in Serial regulation and the first outlet the
The conducting degree of two entrances and the second outlet.So that can be realized the High-temperature cooling pipeline by the control valve 2
With the Serial regulation of the cooling capacity of sub-cooled pipeline.
The shape of the spool 10 of control valve 2 can make appropriate choice according to actual needs, for example, cube shaped, oval
Shape cylinder etc..Preferably, spool 10 is formed as cylindrical body, and in second area 102, is formed with and enables to the first entrance
It is formed in third region 103 with the first removal material portion 104 of first outlet conducting and enables to described first to enter
The removal material portion 105 of mouth and first outlet conducting and the third for enabling to second entrance and the second outlet to be connected
Remove material portion 106, wherein the second removal material portion 105 and third remove the two sides that material portion 106 is separately positioned on spool 10
Place, the first removal material portion 104 and the second removal material portion 105 are continuously arranged in the side of spool 10.It is understood that each
The shape in a removal material portion can make appropriate choice according to actual needs, meet the conducting need between each outlet and entrance
It asks.
Spool 10 moves the Operating condition adjustment that control valve 2 can be realized along the length direction of spool 10, without along other sides
To mobile spool 10, so that the adjustment of control valve 2 is easier, and the first removal material portion 104 and second being continuously arranged is gone
Except material portion 105 but also coolant liquid when control valve switches between the first operating condition and the second operating condition, in High-temperature cooling pipeline
High-speed circulating state is remained at, the cooling effect of the high-temperature area of engine will not be influenced in handoff procedure.
It is shown in Figure 2, in the shown embodiment, simultaneously across the on First Transition region, that is, spool 10 of spool 10
The region in one region 101 and second area 102, simultaneously across second area on the second transitional region, that is, spool 10 of spool 10
102 and third region 103 region.
Another aspect according to the present invention provides a kind of engine cylinder body.The engine cylinder body 5 includes cylinder body water jacket, leans on
The high-temperature area of nearly combustion chamber and low-temperature region far from combustion chamber, the cylinder body water jacket be arranged in engine cylinder body 5 with
Cooling coolant liquid is carried out to engine cylinder body 5 in conveying, the cylinder body water jacket passes through horizontally extending 53 quilt of partition
It is divided into disconnected first chamber 51 and second chamber 52 each other, wherein the first chamber positioned at the top of engine cylinder body 5
51 for cooling down the high-temperature area, and the second chamber 52 positioned at the lower part of engine cylinder body 5 is used to cool down the low-temperature region,
The inlet of first chamber 51 and the inlet of second chamber 52 are connected to liquid feed device 8 respectively, go out liquid in first chamber 51
The pipeline of intercommunication is set between mouth, the liquid outlet of second chamber 52, cylinder cover water jacket 1 and warm-air drier 4, and in first chamber 51
It is arranged on pipeline between liquid outlet, the liquid outlet of second chamber 52, cylinder cover water jacket 1 and warm-air drier 4 according to described above
The first entrance of control valve 2, control valve 2 is connect with the liquid outlet of first chamber 51, the first outlet and cylinder cover water jacket of control valve 2
1 inlet connection, the second entrance of control valve 2 connect with the liquid outlet of second chamber 52, the second outlet of control valve 2 with warm up
The inlet of blower 4 connects.
Wherein, the High-temperature cooling pipeline in engine thermal management method described above is particularly formed as on cylinder body water jacket
One chamber, sub-cooled pipeline are particularly formed as the second chamber on cylinder body water jacket, on engine cylinder body high-temperature area and
Low-temperature region is targetedly cooled down.Engine with engine cylinder body 5 can reduce the phenomenon of detonation of engine, improve
Warming-up speed, and reduce energy consumption.
Other than control valve 2 described above selects operating condition according to the temperature of coolant liquid, control valve 2 can also be according to starting
The operating condition of machine selects operating condition.Specifically, when engine is in engine cold-start operating condition, first chamber 51 and second
Coolant liquid in chamber 52 stops circulating；When engine is in warming-up operating condition, the coolant liquid in first chamber 51 is followed
Circulation is dynamic, and the coolant liquid stopping in second chamber 52 circulates, and only carries out in the high-temperature area where the combustion chamber of engine
It is cooling, so that the low-temperature region of engine cylinder body 5 can be rapidly heated to proper temperature, shorten the warm-up period of engine,
And it can be improved the feed speed of warm wind.
Referring to Fig. 1, in the shown embodiment, the volume of first chamber 51 is less than the volume of second chamber 52, so that the
The coolant liquid circulation rate of one chamber 51 can faster, and the heat insulation effect of opposite second chamber 52 is also preferable.So that being used for
51 cooling capacity of first chamber of cooling high-temperature area is higher, reduces combustion knock tendency, while making for cooling down low temperature
The cooling capacity of the second chamber 52 in region is lower, avoids the low-temperature space for being usually provided with the mechanism of the needs such as piston mechanism lubrication
The larger problem of domain frictional force, is effectively improved the control of the coolant temperature of cylinder body water jacket, realizes the coolant liquid temperature of cylinder body water jacket
The layering of degree is adjusted, and improves the cooling effect of engine cylinder body 5, and facilitates the rapid warming-up of engine, reduces burnup.
In addition, according to actual needs, the cylinder body water jacket may also include more mutually disconnected chambers, for example, three
A chamber, five chambers etc. so that the control of coolant liquid of cavity water jacket more refine.But, it is contemplated that engine cylinder body 5
Practical cooling requirement and cylinder body water jacket manufacturing cost and use cost, preferably, there are two does not connect mutually cylinder body water jacket tool
Logical chamber.Cylinder body water jacket is divided into first by the horizontally extending partition 53 being arranged in the cylinder body water jacket
Chamber 51 and second chamber 52 avoid the excessive caused region of the interval region between first chamber 51 and second chamber 52
Cooling effect is poor.Wherein, the installation fixed form of partition 53 can make appropriate choice according to actual needs, and partition 53 is preferably
With 5 integrally casting shaping of engine cylinder body, convenient for the manufacturing of engine cylinder body.
Within the engine, combustion chamber is usually located at the top of engine cylinder body 5, and the region close to combustion chamber is generally also to send out
Therefore the top of engine cylinder body 5 is arranged in first chamber 51 by the highest region of 5 temperature of motivation cylinder body, second chamber 52 is set
It sets in the lower part of engine cylinder body 5.Also, since the combustion chamber of engine is also close to engine cylinder cover, so that engine cylinder cover
All higher with the upper layer temperature of engine cylinder body 5, the coolant liquid of first chamber 51 is equally used for the cooling of cylinder cover water jacket 1, so that
When the coolant liquid in first chamber 51 circulates, coolant liquid is also being circulated in cylinder cover water jacket 1, the two is synchronous start or
Person stops cooling, no longer needs to that the coolant liquid feeding pipe for cooling down engine cylinder cover is separately provided, simplifies the cooling of engine
The structure of system.
Referring to Fig. 1, the liquid outlet of cylinder cover water jacket 1 is connected to coolant liquid circulation line 3, and used coolant liquid is delivered to
The radiators such as the cooling mechanism and/or radiator of warm-air drier 4 radiate, the coolant liquid after heat dissipation through liquid feed device 8 again
Supply is to cylinder body water jacket, to realize the recycling of coolant liquid.Also, in the shown embodiment, liquid feed device 8 is simultaneously to machine
9 feed flow of oil cooler, can reduce the quantity of the liquid feed device of vehicle, save the cost.
Connecting line and second referring again to Fig. 1, between the liquid outlet of first chamber 51 and the inlet of cylinder cover water jacket 1
Connecting line between chamber 52 and warm-air drier 4 is arranged in a crossed manner, and control valve 2 is arranged in the intersection, in which:
When the first area of spool 10 101 is in use state, control valve 2 is in third operating condition, in cylinder body water jacket
Coolant liquid remains static, when the control valve of illustrated embodiment according to the present invention shown in Figure 3 is in third operating condition
Schematic diagram；
When the second area 102 of spool 10 is in use state, control valve 2 is in the first operating condition, the cylinder body water jacket
Interior coolant liquid is in Local cooling state, and the control valve of illustrated embodiment according to the present invention shown in Figure 4 is in first
Schematic diagram when operating condition, only the coolant liquid in first chamber 51 and cylinder cover water jacket 1 can circulate；And
When the third region 103 of spool 10 is in use state, control valve 2 is in the second operating condition, the cylinder body water jacket
Interior coolant liquid is in the whole state of cooling, and the control valve of illustrated embodiment according to the present invention shown in Figure 5 is in second
Schematic diagram when operating condition, the coolant liquid in first chamber 51, cylinder cover water jacket 1 and second chamber 52 can circulate.
Preferably, engine cylinder body 5 includes the first temperature sensing device for being arranged in first chamber 51 and setting the
Second temperature sensing device in two chambers 52, control device and first temperature sensing device and the second temperature incude
Device electrical connection, and controlled according to the actuated signal control that first temperature sensing device and the second temperature incude
Valve switches between first operating condition, the second operating condition and third operating condition.First temperature sensing device and second temperature induction dress
Set the temperature that can sense first chamber 51 and the coolant liquid in second chamber 52 in real time, control device is according to the sensitivity of coolant liquid
To adjust the circulation rate of coolant liquid accordingly.
Above-mentioned engine cylinder body applies the warm-up period that can shorten the engine of vehicle on vehicle, reduces oil consumption, mentions
The stability and safety of high vehicle.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (9)
1. a kind of engine thermal management method, which is characterized in that in the high-temperature area of the close combustion chamber of engine and far from combustion
High-temperature cooling pipeline and sub-cooled pipeline is respectively set in the low-temperature region for burning room, in the High-temperature cooling pipeline, the low temperature
The pipeline of setting intercommunication between cooling line, cylinder cover water jacket (1) and warm-air drier (4), and the High-temperature cooling pipeline described in connection,
Control valve (2) are set on pipeline between the sub-cooled pipeline, the cylinder cover water jacket (1) and the warm-air drier (4),
In,
Pipe of the control valve (2) in the first operating condition, between High-temperature cooling pipeline described in connection and the cylinder cover water jacket (1)
Road disconnects the pipeline between the sub-cooled pipeline and the warm-air drier (4)；
Pipeline of the control valve (2) in the second operating condition, between High-temperature cooling pipeline described in connection and the cylinder cover water jacket (1)
And the pipeline between the sub-cooled pipeline and the warm-air drier (4)；
The control valve (2) disconnects the pipeline between the High-temperature cooling pipeline and the cylinder cover water jacket (1) in third operating condition
And the pipeline between the sub-cooled pipeline and the warm-air drier (4).
2. engine thermal management method according to claim 1, which is characterized in that according to the High-temperature cooling pipeline and institute
The temperature of the coolant liquid in sub-cooled pipeline is stated to judge the operating condition of the engine,
It is and cold in the sub-cooled pipeline when the temperature of the coolant liquid in the High-temperature cooling pipeline is higher than first predetermined value
But when the temperature of liquid is below or equal to second predetermined value, the control valve (2) is in first operating condition；
It is and cold in the sub-cooled pipeline when the temperature of the coolant liquid in the High-temperature cooling pipeline is higher than first predetermined value
But when the temperature of liquid is higher than second predetermined value, the control valve (2) is in second operating condition；And
When the temperature of the coolant liquid in the High-temperature cooling pipeline is below or equal to first predetermined value, and the sub-cooled pipe
When the temperature of coolant liquid in road is below or equal to second predetermined value, the control valve (2) is in the third operating condition.
3. engine thermal management method according to claim 1 or claim 2, which is characterized in that cold by high temperature described in linear regulation
But the circulation rate of pipeline and/or the coolant liquid in the sub-cooled pipeline come High-temperature cooling pipeline described in Serial regulation and/
Or the cooling capacity of the sub-cooled pipeline.
4. engine thermal management method according to claim 1 or claim 2, which is characterized in that the warm-air drier (4) and radiator
(6) connecting line, outlet of the job state of the radiator (6) by setting in the radiator (6) are provided between
The thermostat (7) of road controls.
5. a kind of control valve, the control valve is for implementing method described in any one of -4 according to claim 1, feature
Be, the control valve (2) include: spool (10), with the High-temperature cooling pipeline outlet connection first entrance, with it is described
The first outlet of the entrance connection of cylinder cover water jacket, with the second entrance of the sub-cooled piping connection and with coolant liquid circulation pipe
The second outlet of road connection, wherein
When the spool (10) is in first area (101), the first entrance and the first outlet and described second
Entrance and the second outlet disconnect；
When the spool (10) is in second area (102), the first entrance and first outlet conducting, described second
Entrance and the second outlet disconnect；And
When the spool (10) is in third region (103), the first entrance and the first outlet and described second
Entrance and the second outlet are both turned on,
The spool (10) can be mobile in the first area (101), described the along the length direction of the spool (10)
Switch between two regions (102) and the third region (103), also, the spool (10) is formed as cylindrical body, and described
Second area (102) is formed with the first removal material portion for enabling to the first entrance and the first outlet to be connected
(104), in the third region (103), it is formed with enable to the first entrance and the first outlet to be connected second
Removal material portion (105) and third removal material portion (106) for enabling to the second entrance and the second outlet to be connected,
Wherein, second removal material portion (105) and third removal material portion (106) are separately positioned on the spool (10)
At two sides, first removal material portion (104) and second removal material portion (105) connect in the side of the spool (10)
Continuous setting.
6. control valve according to claim 5, which is characterized in that the spool (10) further include:
First Transition region, when the spool (10) are in the First Transition region, the first entrance and described first goes out
Mouth not exclusively conducting, the second entrance and the second outlet disconnect；And
Second transitional region, when the spool (10) are in second transitional region, the first entrance and described first goes out
Mouth conducting, the second entrance and the second outlet are not exclusively connected.
7. control valve according to claim 6, which is characterized in that in the First Transition region and/or second mistake
Cross region, the spool (10) can be mobile along the length direction of the spool (10), with first entrance described in Serial regulation and
The conducting degree of second entrance described in the conducting degree or Serial regulation of the first outlet and the second outlet.
8. a kind of cooling device of engine cylinder body, the engine cylinder body (5) includes cylinder body water jacket, the high temperature close to combustion chamber
The low-temperature region in region and separate combustion chamber, the cylinder body water jacket setting is in the engine cylinder body (5) for conveying pair
The engine cylinder body (5) carries out cooling coolant liquid, which is characterized in that the cylinder body water jacket passes through horizontally extending
Partition (53) is separated into disconnected first chamber (51) and second chamber (52) each other, wherein is located at the engine cylinder
The first chamber (51) on the top of body is located at the lower part of the engine cylinder body (5) for cooling down the high-temperature area
The second chamber (52) is for cooling down the low-temperature region, the inlet of the first chamber (51) and the second chamber
(52) inlet is connected to liquid feed device (8) respectively, liquid outlet, the second chamber (52) in the first chamber (51)
Liquid outlet, the pipeline of intercommunication, and going out in the first chamber (51) are set between cylinder cover water jacket (1) and warm-air drier (4)
It is set on pipeline between liquid mouth, the liquid outlet of the second chamber (52), the cylinder cover water jacket (1) and the warm-air drier (4)
Set the control valve (2) according to any one of claim 5-7, the first entrance and described first of the control valve (2)
The liquid outlet of chamber (51) connects, and the first outlet of the control valve (2) is connect with the inlet of the cylinder cover water jacket (1), institute
The second entrance for stating control valve (2) is connect with the liquid outlet of the second chamber (52), and the second outlet of the control valve (2) is logical
The coolant liquid circulation line is crossed to connect with the inlet of the warm-air drier (4).
9. the cooling device of engine cylinder body according to claim 8, which is characterized in that
Cooling when engine is in engine cold-start operating condition, in the first chamber (51) and the second chamber (52)
Liquid stops circulating；
When engine is in warming-up operating condition, the coolant liquid in the first chamber (51) is circulated, the second chamber
(52) the coolant liquid stopping in circulating.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610067781.5A CN107023376B (en) | 2016-01-29 | 2016-01-29 | The cooling device of engine thermal management method, control valve and engine cylinder body |
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| CN201610067781.5A CN107023376B (en) | 2016-01-29 | 2016-01-29 | The cooling device of engine thermal management method, control valve and engine cylinder body |
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| CN107023376B true CN107023376B (en) | 2019-07-26 |
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| CN110344961B (en) * | 2018-04-04 | 2022-02-18 | 上海汽车集团股份有限公司 | Cooling water jacket, control method thereof and engine structure |
| CN112065565B (en) * | 2020-09-15 | 2021-11-30 | 奇瑞汽车股份有限公司 | Thermostat assembly, cooling system, engine and car |
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| CN201486637U (en) * | 2009-07-31 | 2010-05-26 | 奇瑞汽车股份有限公司 | Novel diesel engine cooling structure |
| JP2014163223A (en) * | 2013-02-21 | 2014-09-08 | Mazda Motor Corp | Cooling device for multi-cylinder engine |
| CN204041253U (en) * | 2014-06-30 | 2014-12-24 | 长城汽车股份有限公司 | The cylinder body water jacket structure of multi cylinder in upright arrangement |
| CN104896137A (en) * | 2015-05-07 | 2015-09-09 | 佛山市顺德区美的饮水机制造有限公司 | Control valve |
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2016
- 2016-01-29 CN CN201610067781.5A patent/CN107023376B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201486637U (en) * | 2009-07-31 | 2010-05-26 | 奇瑞汽车股份有限公司 | Novel diesel engine cooling structure |
| JP2014163223A (en) * | 2013-02-21 | 2014-09-08 | Mazda Motor Corp | Cooling device for multi-cylinder engine |
| CN204041253U (en) * | 2014-06-30 | 2014-12-24 | 长城汽车股份有限公司 | The cylinder body water jacket structure of multi cylinder in upright arrangement |
| CN104896137A (en) * | 2015-05-07 | 2015-09-09 | 佛山市顺德区美的饮水机制造有限公司 | Control valve |
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