CN105201619B - A kind of dual cycle cooling system improved structure for including double expansion tanks - Google Patents
A kind of dual cycle cooling system improved structure for including double expansion tanks Download PDFInfo
- Publication number
- CN105201619B CN105201619B CN201510681168.8A CN201510681168A CN105201619B CN 105201619 B CN105201619 B CN 105201619B CN 201510681168 A CN201510681168 A CN 201510681168A CN 105201619 B CN105201619 B CN 105201619B
- Authority
- CN
- China
- Prior art keywords
- water
- pump
- water pump
- flow path
- cooling system
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Landscapes
- Supercharger (AREA)
Abstract
The present invention relates to a kind of dual cycle cooling system improved structures for including double expansion tanks, include high temperature circulation cooling system, low-temperature circulating cooling system and delay circulating cooling system；The high temperature circulation cooling system includes the first expansion tank, high temperature heat sink, engine cooling water jacket, the first water pump, electronic thermostat, machine oil cooler, turbocharger and warm wind；The low-temperature circulating cooling system includes the second expansion tank, low-temperature radiator, the second water pump, Electron pressurizing unit, charge air cooler and BSG.The application is respectively provided with high temperature heat sink and low-temperature radiator by setting two sets of circulating cooling systems, is effectively guaranteed requirement of the different components to be cooled to cooling temperature, and the technical solution of the application does not increase the volume of cooling system.
Description
Technical field
The invention belongs to automobile cooling system field, in particular to a kind of Two-way Cycle cooling systems for including double expansion tanks
System improved structure.
Background technology
National governments promulgate more and more harsh standard, for example provide in the year two thousand twenty requirement vehicle main frame to the oil consumption of engine
Factory persistently reduces oil consumption to 5.0L/100km；Fuel-economizing has become the development trend of world car, and most important in fuel-saving measures
A technology be exactly engine supercharging miniaturization+Technology of Hybrid Electric Vehicle.
In response to the regulation of local government, it is necessary to find a kind of Engine Matching system more innovated to complete this
Target.Because under the premise of dynamic property is not lost, want that decline 30% substantially one can not on the basis of at present oil consumption
Completing for task.Therefore propose that face using hybrid power system+electronics supercharging, is increased by weak mixed and engine on the engine
Pressure miniaturization, the requirement of reduction oil consumption is reached with this.Since whole system matches extremely complex, corresponding vehicle cooling system
System design also tends to complexity.
Conventional engines cooling system, when engine works, the heat that fuel oil burning generates is in addition to acting, heat radiation and biography
It leads and is taken away outside through exhaust gas, excess heat is both needed to be cooled down by cooling system.It is entire cold in conventional engines cooling system
But cycle is divided into two kinds, i.e. systemic circulation under partial circulating and thermostat opening under thermostat closed state.Thermostat closes
Closed state, engine, which is in, at this time just starts working condition, and water temperature is gone up not yet to be come, and thermostat is closed at this time so that cooling
Water by radiator, is not conducive to quickly improve water temperature, engine is made to reach optimum Working, as water temperature gradually rises,
Cured packet expanded by heating in thermostat, thermostat are gradually opened, and the circuit for connecting radiator is opened, and then enters systemic circulation shape
State.
Under the systemic circulation state of conventional engines cooling system, an only major loop, with engines fuel-economizing technology
It constantly promotes, the amount of parts integrated on engine gradually increases, such as charge air cooler, BSG, Electron pressurizing unit, these are new
Integrated parts also need to be cooled down, and still, required cooling temperature, flow and control logic are with starting
Machine gray iron is completely different；Therefore, traditional cooling control loop cannot meet the application of new technology.
In addition, traditional mechanical thermostat response is slow, unlatching, closing are determined by the water temperature of engine, are unfavorable for
The warming-up of engine and being quickly cooled down for water temperature.
The prior art proposes, air-cooled technology is used to charge air cooler, BSG and Electron pressurizing unit, but air-cooled to space requirement
Height has higher requirements to the arrangement of entire enging cabin, and arrangement difficulty is big, and heat evil calculates complexity, and thermal balance risk is big, generally needs
It is iteratively improved and can be only achieved ideal effect, in addition vehicle use environment is changeable so that air cooling system is difficult to meet a variety of uses
The demand of each operating mode of environment.
Engine with supercharger pinking is currently the most intractable technical barrier of domestic and international automobile industry, one reason for this is that air inlet
Temperature is excessively high or unstable.At present, cold mode is better than cold mode in air-cooled in water cooling, but the water inlet of water cooling charge air cooler (cooling
Liquid) temperature can directly affect the intake air temperature of engine.The intake air temperature of engine generally requires control at 60 DEG C hereinafter, otherwise
Combustion knock can be caused or ECU is caused to turn round (measure of limitation torque) to the limit of transmitter, therefore the cooling cycle of charge air cooler is general
Low-temperature circulating can individually be arranged.And low-temperature circulating coolant temperature has to be lower than 55 DEG C, preferably lower than 50 DEG C, but actually very much
Under operating mode, the inflow temperature of charge air cooler is more than above-mentioned limit value (55 or 50 DEG C).One of reason for that is low-temperature circulating and height
Although temperature cycle has individual radiator, an expansion tank is shared, the high temperature coolant in expansion tank is caused to enter low
Temperature cycle, influences the inflow temperature of charge air cooler, and reason is：(1) charge air cooler into coolant comes from middle cold heat sink and swollen
Swollen kettle, although the flow of expansion tank is smaller, cold heat sink temperature is general in the coolant temperature ratio in expansion tank
50 DEG C or more are higher by, reaches as high as 100 DEG C；(2) water pump of low-temperature circulating is electronic water pump, and changed power is big, pace of change is fast,
The moisturizing bypass flow for causing expansion tank is extremely unstable, therefore the moisturizing of expansion tank is that charge air cooler inflow temperature is high and unstable
The main reason for determining.
As rapid starting/stopping engine, after engine is shut down, mechanical water pump is stopped, after can not meeting engine shutdown
The heating demands of driver's cabin, especially this defect is especially prominent under temperature lower ground area, city operating mode, therefore traditional cold
But control loop cannot meet the application of new technology.
Invention content
The purpose of the present invention is by proposing improved technology scheme to existing engine-cooling system, by the technical program,
Can preferably adapt to that coolant between different components recycles flows to problem, solves charge air cooler, BSG, Electron pressurizing unit, turbine
The cooling problem of booster, oil cooler, and the radiating requirements and turbine of BSG higher during low engine speeds can be solved
Delay chilling function after booster is shut down.
The present invention is achieved by the following technical solutions：
A kind of dual cycle cooling system improved structure for including double expansion tanks, include high temperature circulation cooling system,
Low-temperature circulating cooling system and delay circulating cooling system；
The high temperature circulation cooling system includes the first expansion tank, the second expansion tank, high temperature heat sink, engine
Cooling jacket, the first water pump, electronic thermostat, oil cooler and turbocharger；
The first water inlet of first expansion tank and second expansion tank with first water pump is connect；Institute
Water inlet of the water outlet of the first water pump respectively with the engine cooling water jacket and the oil cooler is stated to connect；The machine
The water outlet of oil cooler connects the water inlet of the high temperature heat sink and the auxiliary-valve of the electronic thermostat respectively；The hair
First water outlet of motivation cooling jacket connects the water inlet of the high temperature heat sink and the auxiliary-valve of the electronic thermostat；Institute
The second water outlet for stating engine cooling water jacket connects the water inlet of the turbocharger；The water outlet of the turbocharger
It is connect with the third water inlet of first water pump；The main valve of the water outlet of the high temperature heat sink and the electronic thermostat
Connection；The auxiliary-valve of the main valve of the electronic thermostat and the electronic thermostat enters water with the second of first water pump
Mouth connection；
The low-temperature circulating cooling system includes second expansion tank, low-temperature radiator, the second water pump, electronics
Booster, charge air cooler and BSG；
Second expansion tank is connect with the water inlet of second water pump；The water outlet of second water pump respectively with
The water inlet connection of the water inlet of the charge air cooler, the water inlet of the Electron pressurizing unit and the BSG；The water outlet of the BSG
Water inlet of the water outlet of mouth, the water outlet of the charge air cooler and the Electron pressurizing unit with the low-temperature radiator is connect；
The water outlet of the low-temperature radiator is connect with the water inlet of second water pump；
The delay circulating cooling system includes first expansion tank, the high temperature heat sink, the auxiliary water
Pump, the engine cooling water jacket, first water pump, the electronic thermostat, the oil cooler, the turbocharging
Device and the warm wind；
First expansion tank is connect with the first water inlet of first water pump；The water outlet of first water pump point
Water inlet not with the engine cooling water jacket and the oil cooler is connect；The water outlet of the oil cooler and institute
The water inlet for stating high temperature heat sink is connect with the first water outlet of the engine cooling water jacket；The engine cooling water jacket
The second water outlet connect the water inlet of the auxiliary pump；The water outlet of the auxiliary pump enters with the turbocharger
The mouth of a river connects；The water outlet of the turbocharger is connect with the water inlet of the warm wind；The water outlet of the warm wind with it is described
The third water inlet connection of first water pump；The water outlet of the high temperature heat sink is connect with the main valve of the electronic thermostat；
The main valve of the electronic thermostat is connect with the second water inlet of first water pump；
First exhaust pipeline is connected between first expansion tank and the high temperature heat sink；It is swollen described first
Second exhaust pipeline is provided between swollen water tank and the engine cooling water jacket；In second expansion tank and the low temperature
Second exhaust pipeline is connected between radiator.
The high temperature circulation cooling system further includes one or two in auxiliary pump or warm wind；The auxiliary pump
It is set between second water outlet of engine cooling water jacket and the turbocharger；The warm wind is set to the turbine
Between the third water inlet of the water outlet of booster and first water pump.
The high temperature circulation cooling system includes systemic circulation cooling flowing path and partial circulating cooling flowing path；
The systemic circulation cooling flowing path includes first flow path, second flow path and third flow path；
The first flow path passes sequentially through first water pump, the engine cooling water jacket, the high temperature for coolant
First water pump is returned to by the second water inlet of first water pump after radiator, the electronic thermostat main valve；
The second flow path passes sequentially through first water pump, the oil cooler, high temperature heat dissipation for coolant
First water pump is returned to by the second water inlet of first water pump after device, the electronic thermostat main valve；
The third flow path passes sequentially through the second water outlet of first water pump, the engine cooling water jacket for coolant
First water pump is returned to by the third water inlet of first water pump after mouth, the turbocharger；
The partial circulating cooling flowing path includes the 4th flow path and the 5th flow path；
4th flow path passes sequentially through the first water outlet of first water pump, the engine cooling water jacket for coolant
Mouthful, first water pump is returned to by the second water inlet of first water pump after the auxiliary-valve of the electronic thermostat；
5th flow path passes sequentially through first water pump, the oil cooler and the electronics section temperature for coolant
First water pump is returned to by the second water inlet of first water pump after the auxiliary-valve of device.
The third flow path passes sequentially through the second water outlet of first water pump, the engine cooling water jacket for coolant
Institute is returned to by the third water inlet of first water pump after mouth, the auxiliary pump, the turbocharger and the warm wind
State the first water pump.
The first check valve and first throttle valve are provided on the downtake pipe road；On the second exhaust pipe road
It is provided with second throttle；Third throttle valve is provided on the third gas exhaust piping.
The low-temperature circulating cooling system includes the 6th flow path, the 7th flow path and the 8th flow path；
6th flow path returns after passing sequentially through second water pump, the BSG and the low-temperature radiator for coolant
Return second water pump；
After 7th flow path passes sequentially through second water pump, the charge air cooler and the low-temperature radiator for coolant
Return to second water pump；
8th flow path passes sequentially through second water pump, the Electron pressurizing unit and the low temperature radiation for coolant
Second water pump is returned after device.
The engine cooling water jacket includes cylinder body water jacket and cylinder cover water jacket.
First water pump is switching regulator mechanical water pump；Second water pump is electronic water pump；The auxiliary pump is electricity
Control auxiliary pump.
The delay circulating cooling system includes the 9th flow path, the tenth flow path and the 11st flow path；
9th flow path enters the electronics section after the second water inlet of first water pump is passed sequentially through for coolant
After warm device main valve, into the water outlet of the high temperature heat sink, pass through institute after being come out from the water inlet of the high temperature heat sink
The first water outlet for stating engine cooling water jacket enters the engine cooling water jacket；Coolant is from the engine cooling water jacket
The second water outlet enter the auxiliary pump；By sequentially entering the turbocharger and described warm after the auxiliary pump
First water pump is returned to by the third entrance of first water pump after wind；
Tenth flow path enters water for the coolant from first pump outlet into the oil cooler
Mouthful, enter engine cooling water jacket from the oil cooler water outlet by the first water outlet of engine cooling water jacket, from
The coolant that second water outlet of engine cooling water jacket comes out passes sequentially through the auxiliary pump, the turbocharger again
And first water pump is returned to by the third water inlet of first water pump after the warm wind；
The 11st flow path coolant passes sequentially through the second water outlet of first water pump, the engine cooling water jacket
After mouth, the auxiliary pump, the turbocharger and the warm wind the is returned to by the third water inlet of first water pump
One water pump.
The beneficial effects of the invention are as follows：
1st, before the application turbocharger is connected on warm wind, the coolant temperature that cylinder cover water jacket is gone out fully meets turbine increasing
The coolant temperature requirement of depressor, while the coolant temperature into warm wind is also improved, improve warm wind effect.
2nd, in low-temperature circulating cooling system, there is individual low-temperature radiator, low-temperature circulating coolant temperature is made to keep
At 50 DEG C hereinafter, equipped with throttle valve in low-temperature radiator exhaust hose, higher cold of temperature in excessive expansion tank is prevented
But liquid is participated in low-temperature circulating cooling system.Charge air cooler, Electron pressurizing unit and BSG are in parallel advantageous in low-temperature circulating cooling system
In the cooling of engine charge, Engine Inlet Temperature and intake efficiency has been effectively ensured, has been conducive to play engine power performance,
Prevent pinking.And Electron pressurizing unit is set in low-temperature circulating cooling system, shuts down, can pass through in engine
Delay chilling is realized in the operation of second water pump.
3rd, the application prevents expansion tank or other streams equipped with check valve and throttle valve in high temperature heat sink exhaust hose
Adverse current when road coolant pressure is higher, and prevent the high temperature coolant without radiator excessive in expansion tank from being flowed before water pump
Enter in-engine coolant cycle, the strong thermal balance for protecting engine of this device.
4th, two expansion tanks of the use of the application, low-temperature circulating exhaust pipe and high temperature circulation exhaust pipe respectively from it is different
Expansion tank connects, and effectively prevents when sharing expansion tank with high temperature circulation, the high temperature coolant in expansion tank passes through
Compensation water lines before electronic water pump enter charge air cooler, and instability of flow, influence the stability of the inflow temperature of charge air cooler, together
When influence engine inflow temperature and intake air temperature stability；The first entrance of second expansion tank and the first water pump simultaneously
Connection as the supplement of the first expansion tank, improves cooling effect.
5th, in the application, after engine is shut down, electronic water pump is stopped in mechanical water pump and low-temperature circulating, automatically controlled auxiliary
Electronic water pump is started to work, and electronic thermostat is opened by ECU control electrically heated rod heating wax packets, main valve, and auxiliary-valve is closed, cylinder
Body cylinder cover water jacket, high temperature heat sink, in oil cooler the higher coolant of temperature pumped out by automatically controlled auxiliary electron water pump it is subsequent
It is continuous that Electron pressurizing unit, turbocharger are cooled down, heater is flowed through later, and driver's cabin is continued to heat, meets turbine
The demand of booster delay chilling, while continue to support warm wind heating system after engine shutdown, improve the usability of vehicle
Energy.
Description of the drawings
Fig. 1 is conventional engines cooling system frame diagram；
Fig. 2 is cooling system frame diagram of the present invention；
Fig. 3 is present invention delay circulating cooling system frame diagram.
Reference sign
1 dotted line, 2 dotted lines, 3 dotted lines, 4 dotted lines, 5 solid lines, 6 solid lines, 7 arrows, 8 dotted lines, 001 first expansion tank, 002 electricity
Sub- thermostat, 003 first water pump, 004 cylinder body water jacket, 005 cylinder cover water jacket, 006 oil cooler, 007 high temperature heat sink, 008
Electron pressurizing unit, 009 warm wind, 010 electronic water pump, 011 second expansion tank, 012 low-temperature radiator, 013BSG, 014 turbine increase
Depressor, 015 charge air cooler, 016 first check valve, 017 first throttle valve, 018 second throttle, 019 third throttle valve, 020 is auxiliary
Help water pump.
Specific embodiment
Carry out the technical solution that the present invention will be described in detail by the following examples, following embodiment is only exemplary, only
It can be used for explanation and illustration technical scheme of the present invention, and be not to be construed as the limitation to technical solution of the present invention.
Critical component defines
BSG：A kind of (Belt Starter Generator) belt start generator system：Engine can be achieved rise/to stop
Function realizes the functions such as energy regenerating, auxiliary torque.
Electron pressurizing unit：(Electric Super-Charger ESC) one kind can improve car engine ignition and combustion
The electronic match product of burning state, main function be improve engine low side torque and torque response, can
The rotating speed of motor is dragged to 70000 turns in the range of 0.25S, air is needed to cool down motor, is integrated in air cleaner
Portion.
Electronic water pump：A kind of motor-driven water pump directly controls its rotating speed by control unit of engine, it is not
It is influenced, can be flexibly worked according to the practical cooling requirement of engine by engine speed.
High temperature heat sink：High temperature heat sink is a part for automobile cooling system, mainly by intake chamber, water-supplying chamber, main leaf
And the parts such as radiator centre assembly, main function are the high temperature coolants cooled down in engine water jacket, belong to High-temperature cooling and follow
Ring.
Low-temperature radiator：Low-temperature radiator is a part for automobile cooling system, mainly by intake chamber, water-supplying chamber, main leaf
And the parts such as radiator centre assembly, main function are to cool down engine intercooler, BSG, ESC, the cooling in turbocharger
Liquid belongs to sub-cooled cycle.
Expansion tank：A kind of component of automobile cooling system, main function are the spaces that an expansion is provided to coolant,
The coolant of systematic absence is replenished in time, and removes the air to stagnate in cooling system, this patent is expanded using closed-loop control type
Water tank, the coolant in kettle also assist in vehicle cooling water circulation, in addition, expansion tank also act as to heat radiator assembly, in it is cold
The scavenging action of heat radiator assembly and engine.
Turbocharger：A kind of air compressor increases air inflow by compressed air, utilizes the useless of engine discharge
Gas inertia impulsive force pushes the indoor turbine of turbine, and turbine drives coaxial impeller again, impeller force feed is sent by air filter pipeline
Air be allowed to supercharging enter cylinder, main function be increase engine output power.
Charge air cooler：The auxiliary equipment of engine turbine supercharging its role is to reduce Engine Inlet Temperature, improves engine
Intake efficiency, and prevent pinking, be the important combiner of engine supercharging system.
Electronic thermostat：The relatively traditional thermostat of electronic thermostat increases electric heating function, thermostatic valve open strip
Part is more flexible, and control unit acquisition sensor signal obtains calculated value according to the program of setting, to electronic thermostat temperature tune
It saves unit and loads corresponding voltage, main valve is opened by the way of electrical heating wax packet.It can more precisely relative to traditional thermostat
The various operating modes of control engine under cooling system enter the coolant rate of radiator, change water range of DO.
Oil cooler：A kind of full name oil cooler, cold air (but) device of engine (lubricating oil), is divided into air-cooled and water
Cold type.Water-cooling engine oil cooler controls the temperature of lubricating oil using coolant temperature, when lubricating oil temperature is high, by cooling
Liquid reduces temperature；During engine start, then heat is absorbed from cooling water makes lubricating oil temperature be promoted rapidly.
As shown in Figure 2 to Figure 3, the present invention provides a kind of dual cycle cooling system for including double expansion tanks and improves knot
Structure includes high temperature circulation cooling system, low-temperature circulating cooling system and delay circulating cooling system；In this application, high temperature
Circulating cooling system and low-temperature circulating cooling system use respective expansion tank to be used as water replanishing device before exhaust and pump respectively, this
Sample can avoid the interference between binary cycle system completely.
In the attached drawing of the present embodiment, what dotted line 1 represented is the partial circulating circuit under electronic thermostat closed state；Dotted line
2 expressions are first exhaust pipelines；What dotted line 3 represented is the road of second exhaust；Dotted line 4 is water pipe；Dotted line 8 is arranged for third
Air pipe；Solid line 5 is the systemic circulation circuit under electronic thermostat opening；Solid line 6 is low-temperature circulating cooling system flow path；Arrow
First 7 represent to be the delay circulatory system.
High temperature circulation cooling system, engine work, the heat that fuel oil burning generates is in addition to acting, heat radiation, conduction warp
Outside exhaust gas is taken away, remaining is cooled down by cooling system.Entire high temperature circulation cooling system is divided into two states：Electronics section
Warm device closed state (main valve door closure state) and electronic thermostat opening (main valve opening).
The high temperature circulation cooling system includes the first expansion tank 001, the second expansion tank 011, high temperature heat sink
007th, engine cooling water jacket, the first water pump 003, electronic thermostat 002, machine oil cooler 006, auxiliary pump 020, turbocharging
Device 014 and warm wind 009.In this application, under usual high temperature circulation cooling system state (such as when non-winter), it is auxiliary
Water pump 020 is helped not work, which only plays the role of connecting water channel, in winter, particularly on the low ground of outdoor environment
Area needs warm wind extensive work, and regular circulation may meet interior temperature at this time, can be carried by opening auxiliary pump
High circulation amount.Under the season or environment for not needing to warm wind, warm wind can be closed as needed, then at this time coolant only be used for it is cold
But turbocharger, coolant connect the third water inlet of the first water pump by warm wind bypass line.In the present embodiment, start
Machine cooling jacket includes cylinder body water jacket 004 and cylinder cover water jacket 005, in this application, the structure and cylinder cover water jacket of cylinder body water jacket
Structure not this application claims in the range of, be to pass sequentially through cylinder body water jacket and cylinder cover water jacket and cooling as coolant
Liquid, which is respectively supplied to cylinder body water jacket and cylinder cover water jacket, does not influence the protection domain of the application, this application claims in the range of
It is that requirement engine there will be cooling jacket, that is, needs coolant to cool down rather than using air cooling.
The first water inlet of first expansion tank and second expansion tank with first water pump is connect；Institute
Water inlet of the water outlet of the first water pump respectively with the engine cooling water jacket and the oil cooler is stated to connect；The machine
The water outlet of oil cooler connects the water inlet of the high temperature heat sink and the auxiliary-valve of the electronic thermostat respectively；The hair
First water outlet of motivation cooling jacket connects the water inlet of the high temperature heat sink and the auxiliary-valve of the electronic thermostat；Institute
The second water outlet for stating engine cooling water jacket connects the water inlet of the turbocharger by auxiliary pump；The turbine increases
The water outlet of depressor is connect with the water inlet of the warm wind；The third water inlet of the water outlet of the warm wind and first water pump
Connection；The water outlet of the high temperature heat sink is connect with the main valve of the electronic thermostat；The main valve of the electronic thermostat
Second water inlet of the auxiliary-valve of door and the electronic thermostat with first water pump is connect.
In present embodiments, the first water inlet of the first water pump, the second water inlet and first of the first water pump
The third water inlet of water pump can collect as needed for a water inlet.First water outlet of engine cooling water jacket and start
Second water outlet of machine cooling jacket can collect as needed for a water outlet.
The high temperature circulation cooling system includes the high temperature circulation cooling system during electronic thermostat closed state
High temperature circulation cooling system (systemic circulation cooling flowing path) when (partial circulating cooling flowing path) and electronic thermostat opening,
Also include high temperature circulation cooling system (partial circulating cooling flowing path and the systemic circulation cooling stream during the semi-open state of electronic thermostat
Road coexist under cooling flowing path).
Electronic thermostat closed state：
Engine, which is in, at this time just starts working condition, and water temperature is gone up not yet to be come, at this point, electronic thermostat reception is started
Machine ECU signals determine that open and close, engine are born according to engine water outlet coolant temperature and the load condition of engine
Lotus is low, and electronic thermostat remains turned-off, and engine is in partial circulating state, and rapid warming-up advantageously reduces cold start-up oil consumption.
High temperature circulation cooling system during electronic thermostat closed state include complete partial circulating circuit (the 4th flow path and
5th flow path) and warm wind circuit (third flow path).
4th flow path passes sequentially through the first water outlet of first water pump, the engine cooling water jacket for coolant
Mouthful, first water pump is returned to by the second water inlet of first water pump after the auxiliary-valve of the electronic thermostat.
5th flow path passes sequentially through first water pump, the oil cooler and the electronics section temperature for coolant
First water pump is returned to by the second water inlet of first water pump after the auxiliary-valve of device.
And can determine to open warm wind circuit, i.e. third flow path as needed, the third flow path for coolant successively
By first water pump, the second water outlet of the engine cooling water jacket, the auxiliary pump, the turbocharger,
First water pump is returned to by the third water inlet of first water pump after the warm wind.
In this application, the unlatching of electronic thermostat is controlled by coolant temperature, in the present embodiment, low negative in engine
During lotus, the opening temperature of electronic thermostat is set as 97 degrees Celsius, 112 degrees Celsius of standard-sized sheet temperature；During high engine load operating mode,
The opening temperature of electronic thermostat is set as 85 degrees Celsius, 100 degrees Celsius of standard-sized sheet temperature；During engine middle-low load, entering
When the coolant temperature of electronic thermostat is less than opening temperature, high temperature circulation cooling system is run by partial circulating flow path.At this
In the other embodiments of application, the opening temperature of electronic thermostat can be set as needed, and have no effect on the protection of the application
Range, for example the opening temperature of electronic thermostat is set to 90,93,95,100 degrees Celsius of grades.Equally, electronic thermostat
The full open temperature of main valve can also be set as other temperature, such as 105,108,115 degrees Celsius etc..
Above-mentioned 4th flow path and the 5th flow path are in-engine normal open circuit.
In the present embodiment, when the coolant temperature for entering electronic thermostat is higher than 112 degrees Celsius, electronic thermostat
Main valve it is fully open, the auxiliary-valve Close All of electronic thermostat, at this point, the 4th flow path and the 5th flow path are closed.
The systemic circulation cooling flowing path of high temperature circulation cooling system during the electronic thermostat opening includes first
Flow path, second flow path and third flow path.
The first flow path passes sequentially through first water pump, the engine cooling water jacket, the high temperature for coolant
First water pump is returned to by the second water inlet of first water pump after radiator, the electronic thermostat main valve.
The second flow path passes sequentially through first water pump, the oil cooler, high temperature heat dissipation for coolant
First water pump is returned to by the second water inlet of first water pump after device, the electronic thermostat main valve.
The third flow path passes sequentially through the second water outlet of first water pump, the engine cooling water jacket for coolant
By described in the return of the third water inlet of first water pump after mouth, the auxiliary pump, the turbocharger, the warm wind
First water pump.In third flow path, whether auxiliary pump or warm wind are opened by interior temperature needs and are determined, work as auxiliary pump
Or warm wind only plays path effect when closed.
At this point, engine coolant temperature is gradually increasing, water outlet of the coolant in engine cooling water jacket through engine
Mouth, which enters, participates in cooling in high temperature heat sink, as shown in Fig. 2 high temperature circulations.In addition, in water inlet of radiator Position Design
One gas exhaust piping, and the first check valve 016 and first throttle valve 017 are provided on downtake pipe road；In cylinder cover water jacket
Second exhaust pipeline is provided on 005, and second throttle 018 is set on second exhaust pipe road；Height can effectively be discharged
The gas generated in warm water road avoids leading to the problem of cavitation erosion in cooling cycle water route, first exhaust pipeline and second exhaust pipeline
It is completed by the first expansion tank, the first expansion tank pressure cover is designed as 1.3Bar；It is set in the first water pump water inlet locations
High temperature water pipe is counted, to the first water pump moisturizing, hypotony before the first water pump is avoided, generates cavitation.
In coolant temperature when between 97 degrees Celsius to 112 degrees Celsius, the auxiliary-valve of electronic thermostat is in opening state
While state, the main valve of electronic thermostat is also at opening, at this point, first flow path, second flow path, third flow path,
Four flow paths and the 5th flow path exist simultaneously.
The low-temperature circulating cooling system, as shown in figure 3, including second expansion tank 011, low-temperature radiator
012nd, the second water pump, charge air cooler 015, Electron pressurizing unit 008 and BSG013；In this application, the second water pump is electronic water pump
010。
Second expansion tank is connect with the water inlet of second water pump；The water outlet of second water pump respectively with
The water inlet connection of the water inlet of the charge air cooler, the water inlet of the Electron pressurizing unit and the BSG；The water outlet of the BSG
Water inlet of the water outlet of mouth, the water outlet of the charge air cooler and the Electron pressurizing unit with the low-temperature radiator is connect；
The water outlet of the low-temperature radiator is connect with the water inlet of second water pump.
First exhaust pipeline is connected between first expansion tank and the high temperature heat sink；It is swollen described first
Second exhaust pipeline is provided between swollen water tank and the engine cooling water jacket；In second expansion tank and the low temperature
Third gas exhaust piping is connected between radiator.
The first check valve 016 and first throttle valve 017 are provided on the downtake pipe road；In the second exhaust
Second throttle 018 is provided on pipeline；Third throttle valve 019 is provided on the third gas exhaust piping.
The low-temperature circulating cooling system includes the 6th flow path, the 7th flow path and the 8th flow path.
6th flow path returns after passing sequentially through second water pump, the BSG and the low-temperature radiator for coolant
Return second water pump.
After 7th flow path passes sequentially through second water pump, the charge air cooler and the low-temperature radiator for coolant
Return to second water pump.
8th flow path passes sequentially through second water pump, the Electron pressurizing unit and the low temperature radiation for coolant
Second water pump is returned after device.
Low-temperature circulating cooling system is for cooling to BSG, Electron pressurizing unit and charge air cooler, coolant in low-temperature radiator
BSG branches, charge air cooler branch and Electron pressurizing unit branch, the coolant after temperature raising are flowed separately through after being sucked out by electronic water pump
Into low-temperature radiator.In addition, the coolant in the second expansion tank sucks electronic water by the water pipe before electronic water pump
Pump prevents hypotony before electronic water pump from generating cavitation erosion, meanwhile, the coolant of the mixing bubble in low-temperature radiator upper water box because
Enter the by the third throttle valve on third gas exhaust piping for the pressure differential of the second expansion tank and low-temperature radiator upper water box
Two expansion tanks.
Low-temperature circulating cooling system has individual low-temperature radiator, meet charge air cooler inflow temperature control 50 degrees Celsius with
Under cooling requirement；The electronic water pump of low-temperature circulating coolant power resources ECU controls, meets low engine speeds, high load capacity
Or engine radiating requirements of BSG and charge air cooler when carrying out thermal starting by BSG front ends belt.
The high temperature circulation cooling system of the present invention is run alone with low-temperature circulating cooling system, and the two does not intervene mutually.
In this application, further included the delay circulatory system, to after engine stop works to driving indoor confession
It is warm.In this application, the delay circulatory system includes the first expansion tank 001, high temperature heat sink 007, auxiliary pump
020th, engine cooling water jacket, the first water pump 003, electronic thermostat 002, oil cooler 006, turbocharger 008 and warm
Wind 009；In this application, under engine behavior, the first pump working, auxiliary pump is off working state, is only played
Path effect.In this application, in the case where postponing circulatory system state, the first water pump is off working state, only plays path effect.
Coolant cycles through auxiliary pump to realize, in this application, auxiliary pump is electron assistant water pump.The delay of the application
Circulating cooling system primarily serves two purposes, and a purpose is the delay chilling to turbocharger, another purpose is pair
Car heating.
First expansion tank is connect with the first water inlet of first water pump；The water outlet of first water pump point
Water inlet not with the engine cooling water jacket and the oil cooler is connect；The water outlet of the oil cooler and institute
The water inlet for stating high temperature heat sink is connect with the first water outlet of the engine cooling water jacket；The engine cooling water jacket
The second water outlet connect the water inlet of the auxiliary pump；The water outlet of the auxiliary pump enters with the turbocharger
The mouth of a river connects；The water outlet of the turbocharger is connect with the water inlet of the warm wind；The water outlet of the warm wind with it is described
The third water inlet connection of first water pump；The water outlet of the high temperature heat sink is connect with the main valve of the electronic thermostat；
The main valve of the electronic thermostat is connect with the second water inlet of first water pump.
The delay circulating cooling system includes the 9th flow path, the tenth flow path and the 11st flow path；
9th flow path enters the electronics section after the second water inlet of first water pump is passed sequentially through for coolant
After warm device main valve, into the water outlet of the high temperature heat sink, pass through institute after being come out from the water inlet of the high temperature heat sink
The first water outlet for stating engine cooling water jacket enters the engine cooling water jacket；Coolant is from the engine cooling water jacket
The second water outlet enter the auxiliary pump；By sequentially entering the turbocharger and described warm after the auxiliary pump
First water pump is returned to by the third entrance of first water pump after wind；
Tenth flow path enters water for the coolant from first pump outlet into the oil cooler
Mouthful, enter engine cooling water jacket from the oil cooler water outlet by the first water outlet of engine cooling water jacket, from
The coolant that second water outlet of engine cooling water jacket comes out passes sequentially through the auxiliary pump, the turbocharger again
And first water pump is returned to by the third water inlet of first water pump after the warm wind；
The 11st flow path coolant passes sequentially through the second water outlet of first water pump, the engine cooling water jacket
After mouth, the auxiliary pump, the turbocharger and the warm wind the is returned to by the third water inlet of first water pump
One water pump.
Under the delay circulating cooling system state of the application, the opening and closing of warm wind determine as needed.
The above is only the description of the preferred embodiment of the present invention, it is noted that due to the finiteness of literal expression,
And objectively there are unlimited concrete structures, for those skilled in the art, the present invention is not being departed from
Under the premise of principle, several improvements and modifications can also be made, these improvements and modifications also should be regarded as protection scope of the present invention.
Claims (8)
1. a kind of dual cycle cooling system improved structure for including double expansion tanks, it is characterised in that：Include high temperature circulation
Cooling system, low-temperature circulating cooling system and delay circulating cooling system；
The high temperature circulation cooling system includes the first expansion tank, the second expansion tank, high temperature heat sink, engine cool
Water jacket, the first water pump, electronic thermostat, oil cooler and turbocharger；First expansion tank and described second swollen
First water inlet of the swollen water tank with first water pump is connect；The water outlet of first water pump is cold with the engine respectively
But the water inlet connection of oil cooler described in water sleeve；The water outlet of the oil cooler connects the high temperature heat dissipation respectively
The auxiliary-valve of the water inlet of device and the electronic thermostat；First water outlet of the engine cooling water jacket connects the high temperature
The auxiliary-valve of the water inlet of radiator and the electronic thermostat；The second water outlet connection auxiliary of the engine cooling water jacket
Water pump water inlet, auxiliary pump water outlet connect the water inlet of the turbocharger；The water outlet of the turbocharger with
The water inlet connection of warm wind, the water outlet of warm wind are connect with the third water inlet of first water pump；The high temperature heat sink
Water outlet is connect with the main valve of the electronic thermostat；The pair of the main valve of the electronic thermostat and the electronic thermostat
Second water inlet of the valve with first water pump is connect；
The low-temperature circulating cooling system includes second expansion tank, low-temperature radiator, the second water pump, electronics supercharging
Device, charge air cooler and BSG；The BSG is belt start generator system；Second expansion tank enters with second water pump
The mouth of a river connects；The water outlet of second water pump respectively with the water inlet of the charge air cooler, the water inlet of the Electron pressurizing unit
And the water inlet connection of the BSG；The water outlet of the BSG, the water outlet of the charge air cooler and going out for the Electron pressurizing unit
Water inlet of the mouth of a river with the low-temperature radiator is connect；The water outlet of the low-temperature radiator enters water with second water pump
Mouth connection；
The delay circulating cooling system includes first expansion tank, the high temperature heat sink, auxiliary pump, the hair
Motivation cooling jacket, first water pump, the electronic thermostat, the oil cooler, the turbocharger and warm wind；
First water outlet of the water outlet of the oil cooler and the engine cooling water jacket enters with the high temperature heat sink
The mouth of a river connects；Second water outlet of the engine cooling water jacket connects the water inlet of the auxiliary pump；The auxiliary pump
Water outlet connect with the water inlet of the turbocharger；The water inlet of the water outlet of the turbocharger and the warm wind
Connection；The water outlet of the warm wind is connect with the third water inlet of first water pump；
First exhaust pipeline is connected between first expansion tank and the high temperature heat sink；In first swelling water
Second exhaust pipeline is provided between case and the engine cooling water jacket；In second expansion tank and the low temperature radiation
Third gas exhaust piping is connected between device；
The high temperature circulation cooling system includes systemic circulation cooling flowing path and partial circulating cooling flowing path；
The systemic circulation cooling flowing path includes first flow path, second flow path and third flow path；
The first flow path passes sequentially through first water pump, the engine cooling water jacket, high temperature heat dissipation for coolant
First water pump is returned to by the second water inlet of first water pump after device, the electronic thermostat main valve；
The second flow path passes sequentially through first water pump, the oil cooler, the high temperature heat sink, institute for coolant
It states and first water pump is returned to by the second water inlet of first water pump after electronic thermostat main valve；
The third flow path for coolant pass sequentially through first water pump, the engine cooling water jacket the second water outlet,
First water pump is returned to by the third water inlet of first water pump after the turbocharger；
The partial circulating cooling flowing path includes the 4th flow path and the 5th flow path；
4th flow path for coolant pass sequentially through first water pump, the engine cooling water jacket the first water outlet,
First water pump is returned to by the second water inlet of first water pump after the auxiliary-valve of the electronic thermostat；
5th flow path passes sequentially through first water pump, the oil cooler and the electronic thermostat for coolant
First water pump is returned to by the second water inlet of first water pump after auxiliary-valve.
2. the dual cycle cooling system improved structure according to claim 1 for including double expansion tanks, it is characterised in that：
The high temperature circulation cooling system further includes one or two in auxiliary pump or warm wind；The auxiliary pump is set to institute
It states between the second water outlet of engine cooling water jacket and the turbocharger；The warm wind is set to the turbocharger
Between the third water inlet of water outlet and first water pump.
3. the dual cycle cooling system improved structure according to claim 1 for including double expansion tanks, it is characterised in that：
The third flow path passes sequentially through the second water outlet, described of first water pump, the engine cooling water jacket for coolant
First water is returned to by the third water inlet of first water pump after auxiliary pump, the turbocharger and the warm wind
Pump.
4. the dual cycle cooling system improved structure according to claim 1 for including double expansion tanks, it is characterised in that：
The first check valve and first throttle valve are provided on the downtake pipe road；Is provided on the second exhaust pipe road
Two throttle valves；Third throttle valve is provided on the third gas exhaust piping.
5. the dual cycle cooling system improved structure according to claim 1 for including double expansion tanks, it is characterised in that：
The low-temperature circulating cooling system includes the 6th flow path, the 7th flow path and the 8th flow path；
6th flow path returns to institute after passing sequentially through second water pump, the BSG and the low-temperature radiator for coolant
State the second water pump；
7th flow path returns after passing sequentially through second water pump, the charge air cooler and the low-temperature radiator for coolant
Second water pump；
After 8th flow path passes sequentially through second water pump, the Electron pressurizing unit and the low-temperature radiator for coolant
Return to second water pump.
6. the dual cycle cooling system improved structure according to claim 1 for including double expansion tanks, it is characterised in that：
The engine cooling water jacket includes cylinder body water jacket and cylinder cover water jacket.
7. the dual cycle cooling system improved structure according to claim 1 for including double expansion tanks, it is characterised in that：
First water pump is switching regulator mechanical water pump；Second water pump is electronic water pump；The auxiliary pump is automatically controlled auxiliary water
Pump.
8. the dual cycle cooling system improved structure according to claim 1 for including double expansion tanks, it is characterised in that：
The delay circulating cooling system includes the 9th flow path, the tenth flow path and the 11st flow path；
9th flow path enters the electronic thermostat after the second water inlet of first water pump is passed sequentially through for coolant
After main valve, into the water outlet of the high temperature heat sink, pass through the hair after being come out from the water inlet of the high temperature heat sink
First water outlet of motivation cooling jacket enters the engine cooling water jacket；Coolant is from the of the engine cooling water jacket
Two water outlets enter the auxiliary pump；After the turbocharger and the warm wind are sequentially entered after the auxiliary pump
First water pump is returned to by the third entrance of first water pump；
Tenth flow path enters the water inlet of the oil cooler for the coolant from first pump outlet, from
The oil cooler water outlet enters engine cooling water jacket by the first water outlet of engine cooling water jacket, from the hair
The coolant that the second water outlet of motivation cooling jacket comes out passes sequentially through the auxiliary pump, the turbocharger and described again
First water pump is returned to by the third water inlet of first water pump after warm wind；
The 11st flow path coolant pass sequentially through first water pump, the engine cooling water jacket the second water outlet,
The first water is returned to by the third water inlet of first water pump after the auxiliary pump, the turbocharger and the warm wind
Pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510681168.8A CN105201619B (en) | 2015-10-16 | 2015-10-16 | A kind of dual cycle cooling system improved structure for including double expansion tanks |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510681168.8A CN105201619B (en) | 2015-10-16 | 2015-10-16 | A kind of dual cycle cooling system improved structure for including double expansion tanks |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105201619A CN105201619A (en) | 2015-12-30 |
| CN105201619B true CN105201619B (en) | 2018-07-10 |
Family
ID=54949526
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510681168.8A Active CN105201619B (en) | 2015-10-16 | 2015-10-16 | A kind of dual cycle cooling system improved structure for including double expansion tanks |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105201619B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3055368B1 (en) * | 2016-08-24 | 2018-08-24 | Peugeot Citroen Automobiles Sa | THERMAL MOTOR AIR SUPPLY SYSTEM COOLING DEVICE, AND AIR SUPPLY SYSTEM EQUIPPED WITH SUCH A DEVICE |
| CN109850109B (en) * | 2019-01-18 | 2021-08-31 | 中国船舶及海洋工程设计研究院（中国船舶工业集团公司第七0八研究所） | Marine dual cycle central cooling water system |
| CN113276623B (en) * | 2021-05-27 | 2022-03-01 | 东风汽车集团股份有限公司 | Double-expansion-water-tank heat management system of hybrid electric vehicle and control method thereof |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE602006020239D1 (en) * | 2006-01-24 | 2011-04-07 | Ihi Corp | Motor powered charging |
| CN101463752B (en) * | 2008-12-11 | 2010-06-02 | 奇瑞汽车股份有限公司 | Cooling system of engine |
| US8387572B2 (en) * | 2009-12-04 | 2013-03-05 | Ford Global Technologies, Llc | Auxiliary pump scheme for a cooling system in a hybrid-electric vehicle |
| CN102486114B (en) * | 2010-12-31 | 2013-09-25 | 上汽通用五菱汽车股份有限公司 | Cooling system for automobile engine |
| JP6007128B2 (en) * | 2013-02-27 | 2016-10-12 | カルソニックカンセイ株式会社 | Exhaust recirculation system cooling system |
| CN103615302B (en) * | 2013-12-05 | 2015-09-09 | 安徽江淮汽车股份有限公司 | A kind of cooling system of motor |
| CN104500204A (en) * | 2014-12-10 | 2015-04-08 | 重庆小康工业集团股份有限公司 | Automobile engine cooling device |
-
2015
- 2015-10-16 CN CN201510681168.8A patent/CN105201619B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN105201619A (en) | 2015-12-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105179059B (en) | A kind of cooling system for including double expansion tanks | |
| CN105351065B (en) | A kind of engine dual cycle cooling system improved structure of the double expansion tanks of band | |
| CN105179066B (en) | A kind of engine-cooling system improved structure for including auxiliary pump | |
| CN105275570B (en) | One kind supercharging miniaturization engine double cooling systems | |
| CN105257385B (en) | A kind of cooling system improved structure for including double expansion tanks | |
| CN105179067B (en) | A kind of dual cycle cooling system for including auxiliary pump | |
| CN105179064B (en) | A kind of engine-cooling system improved structure for including double expansion tanks | |
| CN105179060B (en) | A kind of pair of expansion tank dual cycle cooling system improved structure | |
| CN105351067B (en) | A kind of double expansion tank cooling systems of engine | |
| CN105351069B (en) | A kind of engine-cooling system | |
| CN105201631B (en) | A kind of engine-cooling system for including double expansion tanks | |
| CN105179063B (en) | A kind of cooling system for including auxiliary pump | |
| CN105179062B (en) | A kind of dual cycle cooling system improved structure of the double expansion tanks of band | |
| CN105201619B (en) | A kind of dual cycle cooling system improved structure for including double expansion tanks | |
| CN105201618B (en) | A kind of dual cycle cooling system for including auxiliary pump | |
| CN105909359A (en) | Engine cooling system provided with double expansion kettles | |
| CN105863806A (en) | Double-cooling-circulation system with low-temperature heat dissipater | |
| CN105351068B (en) | A kind of double expansion tank cooling system improved structures of engine | |
| CN105257387B (en) | A kind of engine dual cycle cooling system | |
| CN105179061B (en) | A kind of dual cycle cooling system for including double expansion tanks | |
| CN105179065B (en) | A kind of engine dual cycle cooling system of the double expansion tanks of band | |
| CN105927358A (en) | Engine double-circulation cooling system improved structure with low temperature radiator | |
| CN105351066B (en) | A kind of dual cycle cooling system improved structure for including double expansion tanks | |
| CN105201630B (en) | A kind of cooling system for including double expansion tanks | |
| CN105201617B (en) | A kind of cooling system improved structure for including auxiliary pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 230601 Anhui Province, Hefei City Industrial Park, the Peach Blossom Road No. 669 Applicant after: Anhui Jianghuai Automobile Group Limited by Share Ltd Address before: 230601 Anhui Province, Hefei City Industrial Park, the Peach Blossom Road No. 669 Applicant before: Anhui Jianghuai Automotive Co., Ltd. |
|
| COR | Change of bibliographic data | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |