CN105927356A - Multi-cycle engine cooling system - Google Patents
Multi-cycle engine cooling system Download PDFInfo
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- CN105927356A CN105927356A CN201610284497.3A CN201610284497A CN105927356A CN 105927356 A CN105927356 A CN 105927356A CN 201610284497 A CN201610284497 A CN 201610284497A CN 105927356 A CN105927356 A CN 105927356A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P3/00—Liquid cooling
- F01P3/20—Cooling circuits not specific to a single part of engine or machine
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/02—Heating, cooling or ventilating [HVAC] devices the heat being derived from the propulsion plant
- B60H1/04—Heating, cooling or ventilating [HVAC] devices the heat being derived from the propulsion plant from cooling liquid of the plant
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
- F01P11/08—Arrangements of lubricant coolers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P5/00—Pumping cooling-air or liquid coolants
- F01P5/10—Pumping liquid coolant; Arrangements of coolant pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P5/00—Pumping cooling-air or liquid coolants
- F01P5/10—Pumping liquid coolant; Arrangements of coolant pumps
- F01P5/12—Pump-driving arrangements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P7/00—Controlling of coolant flow
- F01P7/14—Controlling of coolant flow the coolant being liquid
- F01P7/16—Controlling of coolant flow the coolant being liquid by thermostatic control
- F01P7/165—Controlling of coolant flow the coolant being liquid by thermostatic control characterised by systems with two or more loops
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B29/00—Engines characterised by provision for charging or scavenging not provided for in groups F02B25/00, F02B27/00 or F02B33/00 - F02B39/00; Details thereof
- F02B29/04—Cooling of air intake supply
- F02B29/0406—Layout of the intake air cooling or coolant circuit
- F02B29/0437—Liquid cooled heat exchangers
- F02B29/0443—Layout of the coolant or refrigerant circuit
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P5/00—Pumping cooling-air or liquid coolants
- F01P5/10—Pumping liquid coolant; Arrangements of coolant pumps
- F01P2005/105—Using two or more pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P5/00—Pumping cooling-air or liquid coolants
- F01P5/10—Pumping liquid coolant; Arrangements of coolant pumps
- F01P5/12—Pump-driving arrangements
- F01P2005/125—Driving auxiliary pumps electrically
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P2031/00—Fail safe
- F01P2031/30—Cooling after the engine is stopped
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P2050/00—Applications
- F01P2050/22—Motor-cars
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P2060/00—Cooling circuits using auxiliaries
- F01P2060/02—Intercooler
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P2060/00—Cooling circuits using auxiliaries
- F01P2060/04—Lubricant cooler
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P2060/00—Cooling circuits using auxiliaries
- F01P2060/12—Turbo charger
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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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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Supercharger (AREA)
Abstract
The invention relates to a multi-cycle engine cooling system. The multi-cycle engine cooling system comprises a high-temperature circular cooling system and a low-temperature circular cooling system; and the high-temperature circular cooling system has three cooling liquid flowing channels of large cycle, small cycle and delay cycle. As the high-temperature circular cooling system is added with an electric control auxiliary water pump and realizes the delay cycle, the multi-cycle engine cooling system can preferably adapt to the heating requirements of all parts after stop of an engine, and solves the flowing direction problems of cooling cycle among different parts.
Description
Technical field
The invention belongs to automobile cooling system field, specifically refer to a kind of multicycle engine cooling system.
Background technology
The oil consumption of electromotor is promulgated more and more harsh standard by national governments, such as specifies in the year two thousand twenty requirement
Automobile main frame maker persistently reduces oil consumption to 5.0L/100km；Fuel-economizing has become as the development trend of world car,
And a most important technology is exactly the supercharging miniaturization+Technology of Hybrid Electric Vehicle of electromotor in fuel-saving measures.
In response to the regulation of local government, it is necessary to find a kind of Engine Matching system more innovated
Become this target.Because on the premise of not losing dynamic property, want oil consumption to decline on the basis of at present
30% is substantially an impossible mission.It is proposed that face uses hybrid power system on the engine
The supercharging of+electronics, by weak mixed and engine booster miniaturization, reduces the requirement of oil consumption with this.By
Extremely complex in whole system coupling, corresponding car load design of Cooling System also tends to complexity.
Conventional engines cooling system, during electromotor work, the heat that fuel oil burning produces is except acting, warm
Radiation, conducting outside waste gas is taken away, remaining is cooled down by cooling system.Whole cooling circulation point
One-tenth two states: thermostat closed mode and thermostat opening, and thus it is divided into systemic circulation and partial circulating.
Electromotor is in and just starts duty, and water temperature does not rises up, and now, thermostat is in cut out
State, electromotor is in partial circulating state；Along with water temperature gradually rises, the La Bao inside thermostat is heated swollen
Swollen, thermostat is gradually opened, and the loop of connection radiator is opened, and then enters systemic circulation.
Prior art disadvantageously, under the electromotor systemic circulation state of cooling, only one major loop.Along with
The continuous popularization of engines fuel-economizing technology, amount of parts integrated on electromotor gradually increases, as charge air cooler,
BSG, turbocharger, electronic water pump etc., these new integrated parts, need also exist for cooling down,
But, its required chilling temperature, flow and to control logical AND engine cylinder-body, cylinder cap completely different；
It addition, along with the application of start-stop technology, such as the HyBoost electromotor of the exploitation such as Ricardo Inc. have quickly
Start-stop function, to reduce engine consumption level, the simple switching regulator mechanical water pump that relies on cannot meet electromotor
Heating demands after shutdown, especially in temperature lower ground district, this defect is especially prominent.Therefore, pass
The Cooling System Control Circuit of system can not meet the application of new technique.
It addition, traditional mechanical type thermostat response is slowly, opens, close the water temperature decision by electromotor,
It is unfavorable for the warming-up of electromotor and the quick cooling of water temperature.
With water-cooled relatively, prior art there is also the air-cooled mode of employing to charge air cooler, BSG, turbine
Supercharger carries out the technical scheme cooled down, but this air cooling way space requirement is high, to whole enging cabin
Being disposed with high requirement, arrange that difficulty is big, thermal balance risk is big, can be only achieved reason it is generally required to be iteratively improved
Think effect.Additionally car load uses environment changeable so that air cooling system is difficult to meet the multiple each operating mode of use environment
Demand；It addition, along with the application of start-stop technology, mechanical water pump cannot meet the heating after electromotor is shut down
Demand, especially in temperature lower ground district, this defect is especially prominent.
To this end, existing engine-cooling system is proposed to improve by applicant, it is specifically shown in the earlier patents of applicant,
CN 105134359A, a kind of engine-cooling system using delay circulation stream；CN 103806999A,
A kind of engine-cooling system；CN 105257384A, a kind of engine-cooling system；CN
105179065A, a kind of electromotor dual cycle cooling system with double expansion tank；In these existing skills
In art, applicant by existing engine cooling and circulating system by improve stream, be improved to high temperature and follow
Loop systems and cold cycle system, and postpone blood circulation, comprehensively improve electromotor and respectively need
The cooling effect of cooling-part, and such improvement technical scheme, compared with technical scheme compare,
Blood circulation cooling effectiveness whole to electromotor improves a lot；But at further research process
In, it has been found that the different coolings order between each parts that electromotor and whole needs cool down,
The most different cooling flowing paths, the raising to the cooling effectiveness of whole cooling system is different, and this
Difference does not have comparability, the i.e. little improvement to cooling flowing path and is respectively provided with different cooling effects.
Summary of the invention
It is an object of the invention to, by proposing to improve technical scheme to existing engine-cooling system, particularly solve
The cooling problem of hybrid power system+electronics engine with supercharger, passes through the technical program, it is possible to preferably fit
The heating requirement of each parts after answering electromotor to shut down, the flow direction solving to cool down between different parts circulation is asked
Topic, is particularly well-suited to such as Hyboost electromotor.
The present invention is achieved by the following technical solutions:
A kind of multicycle engine cooling system, includes high temperature circulation cooling system and cold cycle cooling system
System；
Described high temperature circulation cooling system includes expansion tank, high temperature heat sink, cylinder body water jacket, cylinder head water
Set, switching regulator mechanical water pump, electronic thermostat, oil cooler, automatically controlled auxiliary pump and warm braw；
Described cold cycle cooling system, include described expansion tank, low-temperature radiator, electronic water pump,
Turbocharger, charge air cooler, Electron pressurizing unit and BSG；
Described high temperature circulation cooling system has systemic circulation, partial circulating and delay three kinds of coolant streams of circulation；
Postponing in circulation described, described switching regulator mechanical water air pump inoperative, at described automatically controlled auxiliary pump
Under driving, coming from the coolant of described cylinder cover water jacket, to flow through described automatically controlled auxiliary pump, described warm braw laggard
Entering described switching regulator mechanical water pump, then coolant is divided into three tunnels, after the first via flows through described oil cooler
Returning to described cylinder cover water jacket, the second road returns to described cylinder cover water jacket, the 3rd road stream after flowing through described cylinder body water jacket
Described cylinder cover water jacket is returned to after described electronic thermostat.
Preferably, described postponing in circulation, described electronic thermostat is in running order or off position；
When described electronic thermostat is in running order, the 3rd tunnel coolant flows through the main valve of described electronic thermostat
Described cylinder cover water jacket is returned to after door, described high temperature heat sink；
When described electronic thermostat is in off position, the 3rd tunnel coolant flows through described electronic thermostat
Auxiliary-valve after return to described cylinder cover water jacket and without described high temperature heat sink.
Preferably, in described systemic circulation, described automatically controlled auxiliary water air pump inoperative, described switching regulator mechanical water
Coolant in described high temperature heat sink is pumped into described by the main valve of described electronic thermostat by pump respectively
Oil cooler and described cylinder body water jacket, the coolant in described oil cooler returns to the heat radiation of described high temperature
Device, the coolant in described cylinder body water jacket is divided into two-way after flowing through described cylinder cover water jacket, and wherein a road returns to institute
Stating high temperature heat sink, an other road flows through described automatically controlled auxiliary pump, described Electron pressurizing unit, described warm braw
After return to described switching regulator mechanical water pump.
Preferably, in described partial circulating, described automatically controlled auxiliary water air pump inoperative, described cylinder cover water jacket, institute
State the coolant in oil cooler and enter described switching regulator mechanical water through the auxiliary-valve of described electronic thermostat
Pump, the coolant in described warm braw enters described switching regulator mechanical water pump, and described switching regulator mechanical water pump is by cold
But liquid pumps into described oil cooler and described cylinder body water jacket respectively, and the coolant in described cylinder body water jacket flows through
Being divided into two-way after described cylinder cover water jacket, a road returns to described electricity together with the coolant in described oil cooler
Sub-thermostat, another road enters described warm braw after flowing through described automatically controlled auxiliary pump, described Electron pressurizing unit.
Preferably, above-mentioned multicycle engine cooling system also includes water pipe, and described expansion tank is through institute
State water pipe and supplement coolant to described electronic water pump and described switching regulator mechanical water pump.
Preferably, above-mentioned multicycle engine cooling system also includes gas exhaust piping, described low-temperature radiator,
Described high temperature heat sink connects with described expansion tank through described gas exhaust piping with described cylinder cover water jacket.
Preferably, on described gas exhaust piping, it is in series with between described low-temperature radiator and described expansion tank
Between check valve and choke valve, and/or described high temperature heat sink and described cylinder cover water jacket and described expansion tank
It is in series with check valve and choke valve.
Preferably, described low-temperature radiator connects described expansion from described high temperature heat sink by different entrances
Water tank.
Preferably, in described cold cycle cooling system, come from the coolant quilt of described low-temperature radiator
Described electronic water pump is divided into two-way after pumping out, wherein a road flow through successively described BSG, described Electron pressurizing unit,
Returning to described low-temperature radiator after described turbocharger, another road returns to described low after flowing through described charge air cooler
Temperature radiator.
The invention has the beneficial effects as follows:
In the multicycle engine cooling system of the application, in addition to large and small cycles, also add delay circulation,
After electromotor is shut down, switching regulator mechanical water pump and electronic water pump all quit work, and the most automatically controlled auxiliary pump is beaten
Opening, automatically controlled auxiliary pump drives coolant to continue flow through heater and heats driver's cabin continuation, thus more preferably
Ground meets heating demands and saves the energy.This programme can effectively complete the coupling work of engine-cooling system
Making, make car load thermal balance be in a state the best, circuit design is reasonable；From car load heat management
Angle, significantly reduces the oil consumption of electromotor.
Further, in postponing circulation, by controlling the work of electronic thermostat and not working, be equivalent to
Achieving the large and small circulation postponed within circulation, more adapting to the cooling of different parts under different operating mode needs
Ask.
Further, low-temperature radiator gas exhaust piping, built with check valve and choke valve, prevents in high temperature circulation
When pressure is higher, high-temperature water adverse current enters cold cycle, and additionally choke valve prevents the middle temperature of too much expansion tank
Spend higher coolant to participate in cold cycle.
Further, electronic thermostat and switching regulator mechanical water pump with the use of, it is possible to realize rapid warming-up.
Further, low-temperature radiator connects expansion tank with high temperature heat sink by different entrances, it is possible to
Prevent the gas exhaust piping hypertonia of high temperature circulation cooling system from affecting the aerofluxus of cold cycle cooling system.
Further, in cold cycle cooling system, in coolant flow direction, BSG and electronics supercharging
Device, turbocharger are in parallel with charge air cooler after being cascaded, it is possible to meet respective cooling requirement, and cold
But liquid leaving water temperature is the highest, makes cold cycle coolant temperature be held in less than 50 DEG C, has been effectively ensured
Motivation intake air temperature and intake efficiency, be conducive to playing engine power performance, prevent pinking.
Accompanying drawing explanation
Fig. 1 is the multicycle engine cooling system frame diagram of first embodiment of the present invention；
Fig. 2 is the multicycle engine cooling system frame diagram of second embodiment of the present invention.
Description of reference numerals
1 expansion tank, 2 low-temperature radiators, 3BSG, 4 charge air coolers, 5 electronic water pumps, 6 joints
Stream valve, 7 check valves, 8 high temperature heat sink, 9 electronic thermostats, 10 switching regulator mechanical water pump, 11
Oil cooler, 12 cylinder body water jackets, 13 cylinder cover water jackets, 14 automatically controlled auxiliary pumps, 15 turbines increase
Depressor, 16 Electron pressurizing units, 17 warm braws, 18 check valves, 19 choke valves, 20 outlets.
Detailed description of the invention
Describing technical scheme by the following examples in detail, below example is only exemplary
, it is only capable of for explaining and illustrate technical scheme, and is not to be construed as the technology of the present invention side
The restriction of case.
Critical component defines
BSG:(Belt Starter Generator) a kind of belt start generator system: can realize sending out
Motivation plays/stops function, it is achieved energy regenerating, and auxiliary increases the functions such as torsion.
Electronic water pump: a kind of motor-driven water pump, uses piezoelectric to be used as power device, it is possible to achieve from
Control to driving electronization, use electronic integration system to control liquid transmission, it is achieved the adjustability of liquid transport,
Accuracy.
High temperature heat sink: radiator is a part for automobile cooling system, mainly by intake chamber, water-supplying chamber,
The part assembly such as main leaf and radiator centre, Main Function is the high-temperature water in cooling engine water jacket, belongs to
High temperature cooling circulates.
Low-temperature radiator: low-temperature radiator is a part for automobile cooling system, mainly by intake chamber, water outlet
The part assemblies such as room, main leaf and radiator centre, in Main Function is cooling engine intercooler, BSG
Water, belongs to sub-cooled circulation.
Expansion tank: the parts of a kind of automobile cooling system, Main Function is used to store coolant, and this is specially
Profit uses enclosed expansion tank, and the coolant in water tank also assists in the circulation of car load coolant, it addition, swelling water
Case also acts as the scavenging action to radiator and electromotor.
Electron pressurizing unit: a kind of air compressor, increases air inflow by compressed air, utilizes electromotor
The waste gas inertia impulsive force discharged promotes the turbine in turbine room, and turbine drives again coaxial impeller, impeller pressure
Sending the air sent here by air filter pipeline to be allowed to supercharging and enter cylinder, Main Function is to increase turning of electromotor
Speed.
Charge air cooler: the auxiliary equipment of engine turbine supercharging, its role is to improve the scavenging efficiency of electromotor,
It it is the important set compound component of engine supercharging system.
Electronic thermostat: a kind of novel electromotor attemperating unit, in this system coolant temperature regulation, cold
But the work of the circulating cooling fan of liquid is determined and by control unit of engine control, phase by engine load
For traditional engine cooling apparatus, there is more preferable fuel economy and lower hydrocarbon emission.
Oil cooler: the thermantidote of a kind of electromotor, Main Function be used to cool down engine crankcase,
The electromotor heat generating components such as clutch, valve assembly.
In following description, as shown in Figures 1 and 2, high temperature circulation is represented with the solid line of band arrow
Systemic circulation coolant stream in cooling system and the coolant flow direction in cold cycle cooling system, with
Dash line with arrow represents the partial circulating coolant flow direction in high temperature circulation cooling system, with band arrow
Tubular wire represent postpone circulation in coolant flow direction, represent cold cycle with the chain-dotted line of band arrow
Water pipe coolant flow direction in cooling system and high temperature circulation cooling system, with the dotted line of band arrow
Represent the gas exhaust piping gas flow direction in cold cycle cooling system and high temperature circulation cooling system.
With reference to Fig. 1, the multicycle engine cooling system of first embodiment of the present invention, include high temperature
Circulating cooling system and cold cycle cooling system.Cold cycle cooling system, include expansion tank 1,
Low-temperature radiator 2, electronic water pump 5, turbocharger 15, charge air cooler 4, Electron pressurizing unit 16 and BSG3；
High temperature circulation cooling system includes expansion tank 1, high temperature heat sink 8, cylinder body water jacket 12, cylinder cover water jacket
13, switching regulator mechanical water pump 10, electronic thermostat 9, oil cooler 11, automatically controlled auxiliary pump 14 and
Warm braw 17.Although the high temperature circulation cooling system of the present embodiment and cold cycle cooling system share one swollen
Swollen water tank 1 is as aerofluxus and water replanishing device, but the high temperature circulation cooling system of the present invention is cold with cold cycle
But system is run alone, and each circulation has independent water pump and radiator, and both do not intervene mutually, and
After adding BSG3 and the parts such as turbocharger 15, Electron pressurizing unit 16, the string of pipeline is also
Connection, trend, tandem, the design of cooling logic just become extremely important, and complicated.We
The cooling logical design of case can effectively complete BSG3 and charge air cooler 4, turbocharger 15, electronics
Supercharger 16 parts such as grade and engine cylinder-body, the different cooling requirements of cylinder cap.
Cold cycle cooling system is for BSG3 and charge air cooler 4, turbocharger 15, Electron pressurizing unit 16
Cool down.In cold cycle cooling system, come from the coolant of low-temperature radiator 2 by electronic water pump 5
It is divided into two-way after pumping out, returns after wherein a road flows through BSG3, Electron pressurizing unit 16, turbocharger 15 successively
To low-temperature radiator 2, another road returns to low-temperature radiator 2 after flowing through charge air cooler 4, it is ensured that the cooling of four
Demand；In cold cycle cooling system, the power of coolant comes from ECU (electronic control unit) control
The electronic water pump 5 of system, it is possible to meet low engine speeds, high load capacity or electromotor by BSG3 front end skin
Band carries out BSG3 and charge air cooler 4, Electron pressurizing unit 16, the radiating requirements of turbocharger 15 during thermal starting,
Because it is said that in general, BSG3 for the traffic demand of coolant less than charge air cooler 4, by turbocharger 15,
It is useful that Electron pressurizing unit 16 is connected with BSG3；Engine Inlet Temperature and intake efficiency have been effectively ensured,
Be conducive to playing engine power performance, prevent pinking.It addition, in cold cycle cooling system, swelling water
Coolant in case 1 supplements coolant by the water pipe in electronic water pump 5 front to electronic water pump 5, it is possible to
Before preventing electronic water pump 5, hypotony produces cavitation erosion.It addition, low-temperature radiator 2 is through gas exhaust piping and swelling water
Case 1 connects, and on gas exhaust piping, is in series with check valve 7 between low-temperature radiator 2 and expansion tank 1
With choke valve 6, the coolant being mixed with bubble in low-temperature radiator 2 is due to expansion tank 1 and low temperature radiation
Pressure differential between device 2 and enter expansion tank by choke valve 6 and check valve 7.
High temperature circulation cooling system has systemic circulation, partial circulating and delay three kinds of coolant streams of circulation.Start
Machine outlet 20 water temperature is higher than the first predetermined temperature, such as when 105 degrees Celsius, high temperature circulation cooling system
It is in systemic circulation state；Engine water outlet 20 water temperature is less than the second predetermined temperature, such as when 97 degrees Celsius,
High temperature circulation cooling system is in partial circulating state；Outlet 20 water temperature is positioned at the first predetermined temperature and second
Between predetermined temperature, such as, when being less than 105 degrees Celsius higher than 97 degrees Celsius, large and small circulation is deposited simultaneously
?；After electromotor shutdown in the scheduled time, such as in 15 minutes, the delay circulation after electromotor is shut down is left
Beginning work.Can be different according to different engine model, predetermined temperature and the scheduled time.
After engine start, engine water outlet 20 water temperature is higher than the first predetermined temperature, and such as 105 is Celsius
When spending, the main valve of electronic thermostat 9 is opened, and auxiliary-valve is closed, and coolant enters systemic circulation state.?
In systemic circulation state, automatically controlled auxiliary pump 14 does not works, and now can be regarded as allowing coolant to pass through
Pipeline, switching regulator mechanical water pump 10 by the main valve of electronic thermostat 9 by high temperature heat sink 8
Coolant pumps into oil cooler 11 and cylinder body water jacket 12 respectively, the coolant warp in oil cooler 11
The outlet 20 of electromotor returns to high temperature heat sink 8 and realizes circulation, and the coolant in cylinder body water jacket 12 flows through
Being divided into two-way after cylinder cover water jacket 13, wherein a road returns to high temperature heat sink 8 through outlet 20 and realizes circulation,
An other road returns to switching regulator machine after flowing through automatically controlled auxiliary pump 14, Electron pressurizing unit 16, warm braw 17 successively
Tool water pump 10 realizes circulation.Automatically controlled auxiliary pump keeps not working before engine misses.In systemic circulation,
The coolant temperature that cylinder cover water jacket 13 flows out fully meets the coolant temperature requirement of Electron pressurizing unit 16, with
Time also improve the temperature of coolant and the flow entering warm braw 17, improve warm braw effect.
Engine water outlet 20 water temperature is less than the second predetermined temperature, such as when 97 degrees Celsius, electronic thermostat
The main valve of 9 is closed, and auxiliary-valve is opened, and high temperature circulation cooling system is in partial circulating state.At partial circulating
In, automatically controlled auxiliary pump 14 does not works, and the coolant of switching regulator mechanical water pump 10 comes from oil cooler
Backwater, the backwater of cylinder cover water jacket 13 and the backwater of warm braw 17 of 11.Wherein, cylinder cover water jacket 13, machine oil
Coolant in cooler 11 after outlet 20 confluxes through the auxiliary-valve access switch formula of electronic thermostat 9
Mechanical water pump 10, the coolant in warm braw 17 is directly entered switching regulator mechanical water pump 10, switching regulator mechanical water
Coolant is pumped into oil cooler 11 and cylinder body water jacket 12, the cooling in cylinder body water jacket 12 by pump 10 respectively
Liquid stream is divided into two-way after cylinder cover water jacket 13, and a road returns to electricity together with the coolant in oil cooler 11
Before the auxiliary-valve of sub-thermostat 9 arrives switching regulator mechanical water pump 10, another road flow through automatically controlled auxiliary pump 14,
Entering warm braw 17 after Electron pressurizing unit 16, the coolant in warm braw 17 returns switching regulator mechanical water pump 10.
Before engine misses, automatically controlled donkey pump 14 does not works, and now can be considered one section of pipeline.
When the water temperature of outlet 20 is between the first predetermined temperature and the second predetermined temperature, above-mentioned follow greatly
Ring, partial circulating coexist.
And after tail-off, switching regulator mechanical water pump 10 does not works, after the scheduled time, such as 15min,
Automatically controlled auxiliary pump 14 is powered start working by HyBoost system battery or other circuit, high temperature circulation
Cooling system enters and postpones circulation duty.In the delay of first shown in Fig. 1 embodiment circulates,
Electronic thermostat 9 is in running order, and electronic thermostat 9 heats by electrically heated rod, and main valve is opened, secondary
Valve closing, under the driving of automatically controlled auxiliary pump 14, from high temperature heat sink 8, oil cooler 11,
Coolant in cylinder cover water jacket 13 all converges to the cylinder cover water jacket 13 of head exhaust side, then cylinder cover water jacket 13
Coolant flow through and enter switching regulator mechanical water pump 10 after automatically controlled auxiliary pump 14, warm braw 17, cool down liquid stream
Being divided into three tunnels after going out switching regulator mechanical water pump 10, the first via flows through after oil cooler 11 through outlet 20
Returning to cylinder cover water jacket 13, the second road returns to cylinder cover water jacket 13 after flowing through cylinder body water jacket 12, and the 3rd road flows through electricity
Cylinder cover water jacket 13 is returned to through outlet 20 after the main valve of sub-thermostat 9, high temperature heat sink 8.
With reference to Fig. 2, unlike first embodiment in Fig. 1, implement second shown in Fig. 2
In example, in postponing circulation, electronic thermostat 9 is in off position, now the master of electronic thermostat 9
Valve closing, auxiliary-valve opens, and the 3rd tunnel coolant coming from switching regulator mechanical water pump 10 flows through electronics
After the auxiliary-valve of thermostat 9 directly through outlet 20 return to cylinder cover water jacket 13 and without high temperature heat sink 8.
The effect postponing circulation in Fig. 1 and Fig. 2 is, after electromotor is shut down, and switching regulator mechanical water pump 10
All quitting work with electronic water pump 5, the most automatically controlled auxiliary pump 14 is opened, and automatically controlled auxiliary pump 14 drives
Coolant continues flowing, through warm braw 17, driver's cabin is continued heating, can continue under engine off condition
Continuing utilizes coolant waste heat to heat, and meets heating requirement, continues to cool down electromotor simultaneously, carry
High capacity usage ratio and warm braw effect.Regardless of whether be the systemic circulation in high temperature circulation cooling system, partial circulating
And postpone circulation, or the cold cycle in cold cycle cooling system, all can effectively complete electromotor
The coupling work of cooling system, makes car load thermal balance be in a state the best, and circuit design is reasonable；
From the angle of car load heat management, significantly reduce the oil consumption of electromotor.
And in postponing circulation, by controlling the work of electronic thermostat 9 and the two states that do not works, quite
In having separated again through the systemic circulation of high temperature heat sink 8 with without high temperature heat sink 8 in delay circulation inside
Partial circulating, more adapt to the cooling requirement of different parts under different operating mode.In such manner, it is possible to adapt to respectively
Heating demands in driver's cabin or engine cool demand.Therefore, this programme also can be considered electromotor
A kind of new method that cooling system is controlled.
Similar with the water pipe in cold cycle cooling system, high temperature circulation cooling system there is also moisturizing
Pipeline, expansion tank 1 supplements coolant through water pipe to switching regulator mechanical water pump 10.
Similar with the gas exhaust piping in cold cycle cooling system, high temperature circulation cooling system there is also aerofluxus
Pipeline, high temperature heat sink 8 connects 1 through gas exhaust piping with expansion tank with cylinder cover water jacket 13.And row
On air pipe, between high temperature heat sink 8 and cylinder cover water jacket 13 and expansion tank 1, it is in series with check valve 18
With choke valve 19.Low-temperature radiator 2 connects expansion tank 1 from high temperature heat sink 8 by different entrances
Realize aerofluxus, it is possible to prevent the gas exhaust piping hypertonia of high temperature circulation cooling system and to affect cold cycle cold
But the aerofluxus of system.In two embodiments of the application, cold cycle cooling system and high temperature circulation cooling
System all have employed and has been equipped with choke valve and check valve in water pipe, gas exhaust piping, and gas exhaust piping,
Actually cold cycle cooling system or high temperature circulation cooling system also is able to be independently matched with water pipe, aerofluxus
Pipeline, check valve and choke valve.Advantage in the application is, low-temperature radiator gas exhaust piping is built with list
To valve 7 and choke valve 6, it is possible to when preventing that in high temperature circulation, pressure is higher, high-temperature water adverse current enters cold cycle,
The coolant that during additionally choke valve 6 prevents too much expansion tank 1, temperature is higher participates in cold cycle
In.And electronic thermostat 9 and switching regulator mechanical water pump 10 with the use of, it is possible to realize rapid warming-up.
Turbocharger 15, Electron pressurizing unit 16 are positioned in cold cycle cooling system, utilize cold cycle
Coolant in system is fully able to meet both cooling requirements.
The above is only the description of the preferred embodiment of the present invention, it is noted that due to literal table
The finiteness reached, and objectively there is unlimited concrete structure, for the common skill of the art
For art personnel, under the premise without departing from the principles of the invention, it is also possible to make some improvements and modifications,
These improvements and modifications also should be regarded as protection scope of the present invention.
Claims (9)
1. a multicycle engine cooling system, it is characterised in that: include high temperature circulation cooling system
With cold cycle cooling system；
Described high temperature circulation cooling system includes expansion tank, high temperature heat sink, cylinder body water jacket, cylinder head water
Set, switching regulator mechanical water pump, electronic thermostat, oil cooler, automatically controlled auxiliary pump and warm braw；
Described cold cycle cooling system, include described expansion tank, low-temperature radiator, electronic water pump,
Turbocharger, charge air cooler, Electron pressurizing unit and BSG；
Described high temperature circulation cooling system has systemic circulation, partial circulating and delay three kinds of coolant streams of circulation；
Postponing in circulation described, described switching regulator mechanical water air pump inoperative, at described automatically controlled auxiliary pump
Under driving, coming from the coolant of described cylinder cover water jacket, to flow through described automatically controlled auxiliary pump, described warm braw laggard
Entering described switching regulator mechanical water pump, then coolant is divided into three tunnels, after the first via flows through described oil cooler
Returning to described cylinder cover water jacket, the second road returns to described cylinder cover water jacket, the 3rd road stream after flowing through described cylinder body water jacket
Described cylinder cover water jacket is returned to after described electronic thermostat.
Multicycle engine cooling system the most according to claim 1, it is characterised in that prolong described in:
Late in circulation, described electronic thermostat is in running order or off position；
When described electronic thermostat is in running order, the 3rd tunnel coolant flows through described electronic thermostat
Described cylinder cover water jacket is returned to after main valve, described high temperature heat sink；
When described electronic thermostat is in off position, the 3rd tunnel coolant flows through described electronic thermostat
Auxiliary-valve after return to described cylinder cover water jacket and without described high temperature heat sink.
Multicycle engine cooling system the most according to claim 1 and 2, it is characterised in that:
In described systemic circulation, described automatically controlled auxiliary water air pump inoperative, described switching regulator mechanical water pump passes through institute
Coolant in described high temperature heat sink is pumped into the cooling of described machine oil by main valve respectively that state electronic thermostat
Device and described cylinder body water jacket, the coolant in described oil cooler returns to described high temperature heat sink, described cylinder
Coolant in body water jacket is divided into two-way after flowing through described cylinder cover water jacket, and wherein a road returns to the heat radiation of described high temperature
Device, an other road returns to described after flowing through described automatically controlled auxiliary pump, described Electron pressurizing unit, described warm braw
Switching regulator mechanical water pump.
Multicycle engine cooling system the most according to claim 1 and 2, it is characterised in that:
In described partial circulating, described automatically controlled auxiliary water air pump inoperative, described cylinder cover water jacket, described machine oil are cold
But the coolant in device enters described switching regulator mechanical water pump through the auxiliary-valve of described electronic thermostat, described warm
Coolant in wind enters described switching regulator mechanical water pump, and described switching regulator mechanical water pump is by coolant pump respectively
Entering described oil cooler and described cylinder body water jacket, the coolant in described cylinder body water jacket flows through described cylinder head water
Being divided into two-way after set, a road returns to described electronic thermostat together with the coolant in described oil cooler,
Another road enters described warm braw after flowing through described automatically controlled auxiliary pump, described Electron pressurizing unit.
Multicycle engine cooling system the most according to claim 1 and 2, it is characterised in that: also
Including water pipe, described expansion tank through described water pipe to described electronic water pump and described switching regulator machine
Tool water pump supplements coolant.
Multicycle engine cooling system the most according to claim 1 and 2, it is characterised in that: also
Including gas exhaust piping, described low-temperature radiator, described high temperature heat sink and described cylinder cover water jacket are through described aerofluxus
Pipeline connects with described expansion tank.
Multicycle engine cooling system the most according to claim 6, it is characterised in that: described
On gas exhaust piping, between described low-temperature radiator and described expansion tank, it is in series with check valve and choke valve, and
/ or described high temperature heat sink and described cylinder cover water jacket and described expansion tank between be in series with check valve and throttling
Valve.
Multicycle engine cooling system the most according to claim 6, it is characterised in that: described low
Temperature radiator connects described expansion tank from described high temperature heat sink by different entrances.
Multicycle engine cooling system the most according to claim 1, it is characterised in that: described
In cold cycle cooling system, come from after the coolant of described low-temperature radiator pumped out by described electronic water pump
It is divided into two-way, after wherein a road flows through described BSG, described Electron pressurizing unit, described turbocharger successively
Returning to described low-temperature radiator, another road returns to described low-temperature radiator after flowing through described charge air cooler.
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Application publication date: 20160907 |