CN105351069B - A kind of engine-cooling system - Google Patents
A kind of engine-cooling system Download PDFInfo
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- CN105351069B CN105351069B CN201510681019.1A CN201510681019A CN105351069B CN 105351069 B CN105351069 B CN 105351069B CN 201510681019 A CN201510681019 A CN 201510681019A CN 105351069 B CN105351069 B CN 105351069B
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- 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
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Abstract
The present invention relates to a kind of engine-cooling system, include high temperature circulation cooling system and low-temperature circulating cooling system；The high temperature circulation cooling system includes expansion tank, high temperature heat sink, engine cooling water jacket, the first water pump, electronic thermostat, machine oil cooler, Electron pressurizing unit and warm wind；The low-temperature circulating cooling system, includes the expansion tank, low-temperature radiator, turbocharger, the second water pump, charge air cooler, 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 parts to be cooled to chilling temperature, and the technical scheme of the application does not increase the volume of cooling system.
Description
Technical field
The invention belongs to automobile cooling system field, a kind of engine-cooling system is specifically referred to.
Background technology
More and more harsh standard is promulgated in oil consumption of the national governments to engine, such as is provided in the year two thousand twenty requirement vehicle main frame
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 on the premise of dynamic property is not lost, wanting 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.Because 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 is produced is except acting, heat radiation and biography
Lead and taken away outside through waste gas, remaining heat is both needed to be cooled down by cooling system.It is whole cold in conventional engines cooling system
But circulation is divided into the systemic circulation under partial circulating and thermostat opening under two kinds, i.e. thermostat closed mode.Thermostat is closed
Closed state, now engine, which is in, just starts working condition, and water temperature, which is not gone up also, to be come, and now thermostat is closed so that cooling
Water is conducive to quickly improving water temperature, engine is reached optimum Working not by radiator, as water temperature gradually rises,
Cured bag expanded by heating in thermostat, thermostat is gradually opened, and the loop of connection radiator is opened, and then enters systemic circulation shape
State.
Under the systemic circulation state of conventional engines cooling system, only one major loop, with engines fuel-economizing technology
Constantly promote, integrated amount of parts gradually increases on engine, such as charge air cooler, BSG, Electron pressurizing unit, these are newly
Integrated parts, need also exist for being cooled down, still, and the chilling temperature, flow and control logic required for it are with starting
Machine gray iron is completely different；Therefore, traditional cooling control loop can not meet the application of new technology.
In addition, traditional mechanical thermostat response is slow, opens, closing is determined by the water temperature of engine, be unfavorable for
The warming-up of engine and the quick cooling of water temperature.
Prior art is proposed, air-cooled technology is used to charge air cooler, BSG and Electron pressurizing unit, but air-cooled to space requirement
Height, the arrangement to whole enging cabin has higher requirements, and arrangement difficulty is big, and heat evil calculates complicated, and thermal balance risk is big, typically needs
It is iteratively improved and can be only achieved ideal effect, vehicle use environment is changeable in addition so that air cooling system is difficult to meet a variety of use
The demand of each operating mode of environment.
The content of the invention
The purpose of the present invention be by existing engine-cooling system propose improved technology scheme, by the technical program,
Can preferably adapt to that coolant between different parts circulates flows to problem, solves charge air cooler, BSG, Electron pressurizing unit, turbine
The cooling problem of booster, oil cooler, and radiating requirements higher BSG when can solve the problem that low engine speeds and turbine
Delay chilling function after booster is shut down.
The present invention is achieved by the following technical solutions：
A kind of engine-cooling system, includes high temperature circulation cooling system and low-temperature circulating cooling system；
The high temperature circulation cooling system includes expansion tank, high temperature heat sink, engine cooling water jacket, the first water
Pump, electronic thermostat, oil cooler, Electron pressurizing unit and warm wind；
The expansion tank is connected with the first water inlet of first water pump；The delivery port of first water pump respectively with
The engine cooling water jacket and the connection of the water inlet of the oil cooler；The delivery port of the oil cooler is connected respectively
The auxiliary-valve of the water inlet of the high temperature heat sink and the electronic thermostat；First delivery port of the engine cooling water jacket
The water inlet of the high temperature heat sink and the auxiliary-valve of the electronic thermostat are connected respectively；The of the engine cooling water jacket
Two delivery ports connect the water inlet of the Electron pressurizing unit；The master of the delivery port of the high temperature heat sink and the electronic thermostat
Valve is connected；The auxiliary-valve of the main valve of the electronic thermostat and the electronic thermostat with first water pump second
Water inlet is connected；The delivery port of the Electron pressurizing unit is connected with the water inlet of the warm wind；The delivery port of the warm wind and institute
State the 3rd water inlet connection of the first water pump；
The low-temperature circulating cooling system, includes the expansion tank, low-temperature radiator, turbocharger, the second water
Pump, charge air cooler and BSG；
The expansion tank is connected with the water inlet of second water pump；The delivery port of second water pump respectively with it is described
The water inlet connection of BSG water inlet and the charge air cooler；The delivery port of the BSG and the water inlet of the turbocharger connect
Connect；The delivery port of the turbocharger is connected with the water inlet of the low-temperature radiator；The delivery port of the charge air cooler and institute
State the water inlet connection of low-temperature radiator；The delivery port of the low-temperature radiator is connected with the water inlet of second water pump；
First exhaust is connected between the expansion tank and the high temperature heat sink and the engine cooling water jacket
Pipeline；Second exhaust pipeline is connected between the expansion tank and the low-temperature radiator；
The first check valve and first throttle valve are provided with the first exhaust pipeline；On the second exhaust pipeline
It is provided with the second check valve and second throttle.
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 and second flow path；
The first flow path is that coolant passes sequentially through first water pump, the engine cooling water jacket, the high temperature
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 is that coolant passes sequentially through first water pump, the oil cooler, high temperature radiating
First water pump is returned to by the second water inlet of first water pump after device, the electronic thermostat main valve；
The partial circulating cooling flowing path includes the 4th stream and the 5th stream；
4th stream is that coolant passes sequentially through first water pump, the engine cooling water jacket, the electronics
First water pump is returned to by the second water inlet of first water pump after the auxiliary-valve of thermostat；
5th stream is that coolant passes sequentially through first water pump, the oil cooler and the electronics section temperature
First water pump is returned to by the second water inlet of first water pump after the auxiliary-valve of device.
The high temperature circulation cooling system also includes the 3rd stream；3rd stream is described in coolant is passed sequentially through
The 3rd entering by first water pump after first water pump, the engine cooling water jacket, the Electron pressurizing unit, the warm wind
The mouth of a river returns to first water pump.
The low-temperature circulating cooling system includes the 6th stream and the 7th stream；
6th stream is that coolant passes sequentially through second water pump, the BSG, the turbocharger and described
Second water pump is returned after low-temperature radiator；
7th stream is that coolant is passed sequentially through after second water pump, the charge air cooler and the low-temperature radiator
Return to second water pump.
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.
First check valve and the first throttle valve arranged in series；First check valve is arranged at the swelling water
Between case and the first throttle valve.
Second check valve and the second throttle arranged in series；Second check valve is arranged at the swelling water
Between case and the second throttle.
The beneficial effects of the invention are as follows：
1st, the application Electron pressurizing unit is connected on before warm wind, and the coolant temperature that cylinder cover water jacket is gone out fully meets electronics increasing
The coolant temperature requirement of depressor, while also improving the coolant temperature into warm wind, improves warm wind effect.
2nd, in low-temperature circulating cooling system, there is single low-temperature radiator, low-temperature circulating coolant temperature is kept
Below 50 DEG C, low-temperature radiator exhaust hose prevents pressure in high temperature circulation cooling system built with check valve and choke valve
When higher, high-temperature water adverse current enters low-temperature circulating cooling system, and choke valve prevents that temperature is higher in excessive expansion tank in addition
Coolant participate in low-temperature circulating cooling system.BSG and turbocharger series arm be again in low-temperature circulating cooling system
It is in parallel with charge air cooler, while adding the pressure differential of charge air cooler branch road, be conducive to the cooling of engine charge, hair has been effectively ensured
Motivation intake air temperature and intake efficiency, are conducive to playing engine power performance, prevent pinking.
3rd, the application is respectively arranged with check valve and choke valve in high temperature heat sink, cylinder cover water jacket exhaust hose, prevents expansion
Adverse current when water tank or higher other stream coolant pressures, and prevent the High-temperature cooling without radiator excessive in expansion tank
Liquid flows into in-engine coolant circulation, the thermal balance for protecting engine of this device effectively before water pump.
4th, the expansion tank of the application has two water inlets, and low-temperature circulating blast pipe and high temperature circulation blast pipe difference are never
Same water inlet enters expansion tank, prevents high temperature circulation blast pipe hypertonia from influenceing the exhaust of low-temperature radiator.
Brief description of the drawings
Fig. 1 is conventional engines cooling system frame diagram；
Fig. 2 is inventive engine cooling system frame diagram；
Fig. 3 is low-temperature circulating cooling system frame diagram of the present invention；
Fig. 4 is high temperature circulation cooling system frame diagram of the present invention；
Fig. 5 is systemic circulation cooling flowing path frame diagram of the present invention；
Fig. 6 is partial circulating cooling flowing path frame diagram of the present invention；
Fig. 7 is first exhaust pipeline schematic diagram of the present invention.
Description of reference numerals
1 dotted line, 2 dotted lines, 3 dotted lines, 4 dotted lines, 5 solid lines, 6 solid lines, 001 expansion tank, 002 electronic 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 warms up
Wind, 010 electronic water pump, 012 low-temperature radiator, 013 BSG, 014 turbocharger, 015 charge air cooler, 016 first check valve,
017 first throttle valve, 018 second check valve, 019 second throttle.
Embodiment
Describe technical scheme in detail by the following examples, following embodiment be only it is exemplary, only
Explanation and illustration technical scheme can be used for, and be not to be construed as the limitation to technical solution of the present invention.
Critical component is defined
BSG：A kind of (Belt Starter Generator) belt start generator system：Engine can be achieved rise/to stop
Function, realizes energy regenerating, and auxiliary increases the functions such as torsion.
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 moment of torsion and moment of torsion response, can
The rotating speed of motor is dragged to 70000 turns, it is necessary to air is cooled down to motor in the range of 0.25S, is integrated in air cleaner
Portion.
Electronic water pump：A kind of motor-driven water pump, is directly controlled, it is not by control unit of engine to its rotating speed
Influenceed, can flexibly be worked according to the actual 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 part assembly such as radiator centre, main function is to cool down the high temperature coolant in engine water jacket, belongs to High-temperature cooling and follows
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 part assembly such as radiator centre, main function is to cool down engine intercooler, BSG, ESC, the cooling in turbocharger
Liquid, belongs to sub-cooled circulation.
Expansion tank：A kind of part of automobile cooling system, main function is the space that an expansion is provided to coolant,
The coolant of timely replenishment system missing, and the air stagnated in cooling system is removed, this patent is expanded using closed-loop control type
Coolant in water tank, kettle also assists 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, air inflow is increased by compressed air, utilizes giving up that engine is discharged
Gas inertia impulsive force promotes the turbine in turbine room, and turbine drives coaxial impeller again, impeller force feed is sent by air filter pipeline
Air be allowed to supercharging and enter cylinder, main function is to increase the power output of engine.
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 conventional thermostat of electronic thermostat adds electric heating function, thermostatic valve open strip
Part is more flexible, and control unit collection sensor signal draws calculated value according to the program of setting, and electronic thermostat temperature is adjusted
Save unit and load corresponding voltage, main valve is opened by the way of electrical heating wax bag.Can be more smart relative to traditional thermostat
Cooling system enters the coolant rate of radiator under the accurate control various operating modes of engine, changes water circulation scope.
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 lifted rapidly.
As shown in Figures 2 to 7, the present invention provides a kind of engine-cooling system, include high temperature circulation cooling system and
Low-temperature circulating cooling system；In this application, high temperature circulation cooling system shares a swelling water with low-temperature circulating cooling system
Case is used as water replanishing device before exhaust and pump.
In the accompanying drawing of the present embodiment, what dotted line 1 was represented is the partial circulating loop under electronic thermostat closed mode；Dotted line
2 expressions are first exhaust pipelines；What dotted line 3 was represented is the road of second exhaust；Dotted line 4 is water pipe；Solid line 5 is electronics section
Systemic circulation loop under warm device opening；Solid line 6 is low-temperature circulating cooling system stream.
High temperature circulation cooling system, engine work, the heat that fuel oil burning is produced is except acting, heat radiation, conduction warp
Outside waste gas is taken away, remaining is cooled down by cooling system.Whole high temperature circulation cooling system is divided into two states：Electronics section
Warm device closed mode (main valve door closure state) and electronic thermostat opening (main valve opening).
The high temperature circulation cooling system includes expansion tank 001, high temperature heat sink 007, engine cooling water jacket,
One water pump 003, electronic thermostat 002, oil cooler 006, Electron pressurizing unit 008 and warm wind 009.In the present embodiment, send out
Motivation cooling jacket includes cylinder body water jacket 004 and cylinder cover water jacket 005, in this application, the structure and cylinder head water of cylinder body water jacket
The structure of set, not this application claims in the range of, is to pass sequentially through cylinder body water jacket and cylinder cover water jacket and cold as coolant
But 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 scope
It is inside that requirement engine there will be cooling jacket, that is, needs coolant to cool down, rather than use air cooling.
The expansion tank is connected with the first water inlet of first water pump；The delivery port of first water pump respectively with
The engine cooling water jacket and the connection of the water inlet of the oil cooler；The delivery port of the oil cooler is connected respectively
The auxiliary-valve of the water inlet of the high temperature heat sink and the electronic thermostat；First delivery port of the engine cooling water jacket
The water inlet of the high temperature heat sink and the auxiliary-valve of the electronic thermostat are connected respectively；The of the engine cooling water jacket
Two delivery ports connect the water inlet of the Electron pressurizing unit；The master of the delivery port of the high temperature heat sink and the electronic thermostat
Valve is connected；The auxiliary-valve of the main valve of the electronic thermostat and the electronic thermostat with first water pump second
Water inlet is connected；The delivery port of the Electron pressurizing unit is connected with the water inlet of the warm wind；The delivery port of the warm wind and institute
State the 3rd water inlet connection of the first water pump.
The high temperature circulation cooling system includes the high temperature circulation cooling system during electronic thermostat closed mode
(partial circulating cooling flowing path), and the high temperature circulation cooling system (systemic circulation cooling flowing path) during electronic thermostat opening,
Also high temperature circulation cooling system (partial circulating cooling flowing path and the systemic circulation cooling stream during the semi-open state of electronic thermostat are included
Road coexist under cooling flowing path).
Electronic thermostat closed mode, as shown in Figure 6：
Now engine, which is in, just starts working condition, and water temperature, which is not gone up also, to be come, now, and electronic thermostat, which is received, to be 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 is remained 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 mode include complete partial circulating loop (the 4th stream and
5th stream) and warm wind loop (the 3rd stream)；
4th stream is that coolant passes sequentially through first water pump, the engine cooling water jacket, the electronics
First water pump is returned to by the second water inlet of first water pump after the auxiliary-valve of thermostat；
5th stream is that coolant passes sequentially through first water pump, the oil cooler and the electronics section temperature
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 loop, i.e. the 3rd stream as needed, the 3rd stream be coolant successively
By passing through first water pump after first water pump, the engine cooling water jacket, the Electron pressurizing unit, the warm wind
The 3rd water inlet return to first water pump.
In this application, the unlatching of electronic thermostat is in the present embodiment, low negative in engine by coolant temperature control
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 stream.At this
In the other embodiments of application, the opening temperature of electronic thermostat can be set as needed, have no effect on the protection of the application
Scope, such as be arranged at 90,93,95,100 degrees Celsius of grades by the opening temperature of electronic thermostat.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 stream and the 5th is in-engine normal open loop.
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, now, the 4th stream and the 5th stream are closed.
The systemic circulation cooling flowing path of high temperature circulation cooling system during the electronic thermostat opening includes first
Stream and second flow path.
The first flow path is that coolant passes sequentially through first water pump, the engine cooling water jacket, the high temperature
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 is that coolant passes sequentially through first water pump, the oil cooler, high temperature radiating
First water pump is returned to by the second water inlet of first water pump after device, the electronic thermostat main valve.
In systemic circulation stream, and it can determine to open warm wind loop, i.e. the 3rd stream, the 3rd stream as needed
Road passes sequentially through for coolant to be led to after first water pump, the engine cooling water jacket, the Electron pressurizing unit, the warm wind
The 3rd water inlet for crossing first water pump returns to first water pump.
Now, when ECT is gradually increasing, the going out through engine of the coolant in engine cooling water jacket
The mouth of a river, which enters, participates in cooling in high temperature heat sink, as shown in Fig. 5 high temperature circulations.In addition, in water inlet of radiator position and cylinder
First exhaust pipeline is designed on lid water jacket, and is provided with first exhaust pipeline the first check valve 016 and first throttle valve
017；The gas produced in high temperature water route can effectively be discharged, it is to avoid cavitation erosion problem, first row are produced in cooling circulating water road
Air pipe is completed by expansion tank, and expansion tank pressure cover is designed as 1.3Bar；Design high in the first water pump water inlet locations
Temperature compensation water lines, to the first water pump moisturizing, it is to avoid hypotony before the first water pump, produce cavitation.
In coolant temperature when between 97 degrees Celsius to 112 degrees Celsius, the auxiliary-valve of electronic thermostat, which is in, opens shape
While state, the main valve of electronic thermostat is also at opening, now, first flow path, second flow path, the 4th stream and
Five streams exist simultaneously.
The low-temperature circulating cooling system, as shown in Figures 2 and 3, includes the expansion tank 001, low-temperature radiator
012nd, turbocharger 014, the second water pump, charge air cooler 015, BSG013；In this application, the second water pump is electronic water pump 010.
The expansion tank is connected with the water inlet of second water pump；The delivery port of second water pump respectively with it is described
The water inlet connection of BSG water inlet and the charge air cooler；The delivery port of the BSG and the water inlet of the turbocharger connect
Connect；The delivery port of the turbocharger is connected with the water inlet of the low-temperature radiator；The delivery port of the charge air cooler and institute
State the water inlet connection of low-temperature radiator；The delivery port of the low-temperature radiator is connected with the water inlet of second water pump.
The low-temperature circulating cooling system includes the 6th stream and the 7th stream；
6th stream is that coolant passes sequentially through second water pump, the BSG, the turbocharger and described
Second water pump is returned after low-temperature radiator；
7th stream is that coolant is passed sequentially through after second water pump, the charge air cooler and the low-temperature radiator
Return to second water pump.
Low-temperature circulating cooling system is used for coolant in the cooling to BSG, turbocharger and charge air cooler, low-temperature radiator
By electronic water pump suction out after be divided into series arm and charge air cooler branch road that two-way flows separately through BSG and turbocharger, temperature liter
Coolant after height, which is merged in, enters low-temperature radiator.In addition, the coolant in expansion tank passes through the moisturizing before electronic water pump
Pipeline sucks electronic water pump, prevents that hypotony produces cavitation erosion before electronic water pump, meanwhile, the mixing in low-temperature radiator upper water box
The coolant of bubble is because the pressure differential of expansion tank and low-temperature radiator upper water box passes through the second section on second exhaust pipeline
The stream check valve 018 of valve 019 and second enters expansion tank.
Low-temperature circulating cooling system has single 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 the radiating requirements of engine BSG and charge air cooler when carrying out thermal starting by BSG front ends belt；Low-temperature circulating cools down hydraulic power
The electronic water pump that the ECU that originates is controlled, meets after engine cutoff, the delay chilling demand of turbocharger.
The high temperature circulation cooling system of the present invention is run alone with low-temperature circulating cooling system, and both do not intervene mutually.
Described 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 is unlimited concrete structure, for those skilled in the art, do not departing from the present invention
On the premise of principle, some 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 engine-cooling system, it is characterised in that：Include high temperature circulation cooling system and low-temperature circulating cooling system；
The high temperature circulation cooling system includes expansion tank, high temperature heat sink, engine cooling water jacket, the first water pump, electricity
Sub- thermostat, oil cooler, Electron pressurizing unit and warm wind；
The expansion tank is connected with the first water inlet of first water pump；The delivery port of first water pump respectively with it is described
Engine cooling water jacket and the connection of the water inlet of the oil cooler；The delivery port of the oil cooler connects described respectively
The auxiliary-valve of the water inlet of high temperature heat sink and the electronic thermostat；The first delivery port difference of the engine cooling water jacket
Connect the water inlet of the high temperature heat sink and the auxiliary-valve of the electronic thermostat；The second of the engine cooling water jacket goes out
The mouth of a river connects the water inlet of the Electron pressurizing unit；The main valve of the delivery port 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 delivery port of the Electron pressurizing unit is connected with the water inlet of the warm wind；The delivery port of the warm wind and described the
The 3rd water inlet connection of one water pump；
The low-temperature circulating cooling system, include the expansion tank, low-temperature radiator, turbocharger, the second water pump, in
Cooler and BSG；
The expansion tank is connected with the water inlet of second water pump；The delivery port of second water pump respectively with the BSG
Water inlet and the charge air cooler water inlet connection；The delivery port of the BSG is connected with the water inlet of the turbocharger；
The delivery port of the turbocharger is connected with the water inlet of the low-temperature radiator；The delivery port of the charge air cooler with it is described low
The water inlet connection of temperature radiator；The delivery port of the low-temperature radiator is connected with the water inlet of second water pump；
First exhaust pipeline is connected between the expansion tank and the high temperature heat sink and the engine cooling water jacket；
Second exhaust pipeline is connected between the expansion tank and the low-temperature radiator；
The first check valve and first throttle valve are provided with the first exhaust pipeline；Set on the second exhaust pipeline
There are the second check valve and second throttle.
2. engine-cooling system according to claim 1, it is characterised in that：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 and second flow path；
The first flow path is that coolant passes sequentially through first water pump, the engine cooling water jacket, high temperature radiating
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
State after electronic thermostat main valve and first water pump is returned to by the second water inlet of first water pump；
The partial circulating cooling flowing path includes the 4th stream and the 5th stream；
4th stream is that coolant passes sequentially through first water pump, the engine cooling water jacket, the electronics section temperature
First water pump is returned to by the second water inlet of first water pump after the auxiliary-valve of device；
5th stream is that coolant passes sequentially through first water pump, the oil cooler and the electronic thermostat
First water pump is returned to by the second water inlet of first water pump after auxiliary-valve.
3. engine-cooling system according to claim 2, it is characterised in that：The high temperature circulation cooling system also includes
There is the 3rd stream；3rd stream is that coolant passes sequentially through first water pump, the engine cooling water jacket, the electricity
First water pump is returned to by the 3rd water inlet of first water pump after sub- booster, the warm wind.
4. engine-cooling system according to claim 1, it is characterised in that：The low-temperature circulating cooling system includes
6th stream and the 7th stream；
6th stream is that coolant passes sequentially through second water pump, the BSG, the turbocharger and the low temperature
Second water pump is returned after radiator；
7th stream is that coolant passes sequentially through return after second water pump, the charge air cooler and the low-temperature radiator
Second water pump.
5. engine-cooling system according to claim 1, it is characterised in that：The engine cooling water jacket includes cylinder
Body water jacket and cylinder cover water jacket.
6. engine-cooling system according to claim 1, it is characterised in that：First water pump is switching regulator mechanical water
Pump；Second water pump is electronic water pump.
7. engine-cooling system according to claim 1, it is characterised in that：First check valve and the first segment
Flow valve arranged in series；First check valve is arranged between the expansion tank and the first throttle valve.
8. engine-cooling system according to claim 1, it is characterised in that：Second check valve and the second section
Flow valve arranged in series；Second check valve is arranged between the expansion tank and the second throttle.
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| Application Number | Priority Date | Filing Date | Title |
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| CN105927351A (en) * | 2016-04-27 | 2016-09-07 | 安徽江淮汽车股份有限公司 | Engine cooling system adopting delayed circulating flow path |
| CN105927359A (en) * | 2016-04-27 | 2016-09-07 | 安徽江淮汽车股份有限公司 | Double-circulation cooling system with electronic supercharger positioned in high temperature cooling system |
| CN105927358A (en) * | 2016-04-27 | 2016-09-07 | 安徽江淮汽车股份有限公司 | Engine double-circulation cooling system improved structure with low temperature radiator |
| CN108263202B (en) * | 2017-12-14 | 2020-12-01 | 浙江吉利新能源商用车有限公司 | Engine cooling device with multiple range extenders |
| CN110454268A (en) * | 2019-07-16 | 2019-11-15 | 玉柴联合动力股份有限公司 | A kind of engine and cooler for recycled exhaust gas parallel connection cooling system |
| CN113027599A (en) * | 2021-03-30 | 2021-06-25 | 一汽奔腾轿车有限公司 | Cooling system of post-operation supercharger and control method thereof |
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| CN2858987Y (en) * | 2005-11-14 | 2007-01-17 | 昆明云内动力股份有限公司 | Cooling system for engine |
| CN101245729A (en) * | 2008-03-27 | 2008-08-20 | 孙可 | Electric-controlled thermostat |
| CN101655027A (en) * | 2009-09-08 | 2010-02-24 | 奇瑞汽车股份有限公司 | Engine cooling system and cooling method |
| CN201574814U (en) * | 2009-10-30 | 2010-09-08 | 奇瑞汽车股份有限公司 | Cooling system of engine |
| CN103670657B (en) * | 2012-09-13 | 2016-09-28 | 北京汽车动力总成有限公司 | A kind of engine-cooling system, electromotor and vehicle |
| CN203308560U (en) * | 2013-05-30 | 2013-11-27 | 长城汽车股份有限公司 | Engine cooling recirculation system, and corresponding engine and automobile |
| 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 |
| CN103806999B (en) * | 2014-03-06 | 2016-08-17 | 安徽江淮汽车股份有限公司 | A kind of engine-cooling system |
| CN104763519A (en) * | 2015-04-03 | 2015-07-08 | 安徽江淮汽车股份有限公司 | Time delay water cooling device and control method thereof |
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