CN109139224A - A kind of engine dual cycle cooling system - Google Patents
A kind of engine dual cycle cooling system Download PDFInfo
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- CN109139224A CN109139224A CN201810967021.9A CN201810967021A CN109139224A CN 109139224 A CN109139224 A CN 109139224A CN 201810967021 A CN201810967021 A CN 201810967021A CN 109139224 A CN109139224 A CN 109139224A
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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
- 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
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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
- F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
- F01P11/04—Arrangements of liquid pipes or hoses
-
- 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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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Lubrication Of Internal Combustion Engines (AREA)
Abstract
A kind of engine dual cycle cooling system includes high temperature and low temperature hydrologic cycle cooling system.High-temperature systems pass through the selection control switch of thermosistor, switch over cooling water flow direction according to engine load, realize rapid warming-up and reduce oil consumption.Keeping cylinder cap and cylinder body water jacket in the engine cold-start stage is series connection, is heated cooling water one circulation twice, utmostly accelerates cooling water heating.In the higher warming-up of engine temperature and hot stage, keeps cylinder cap and cylinder body water jacket is parallel connection, utmostly increase engine water flow, and the controllable respective water flow of cylinder block and head, make all to reach optimum temperature, to reduce pinking, reduce oil consumption.Cryogenic system uses electronic water pump and shared impounding kettle, throttle orifice is used between impounding kettle and cryogenic system, reduce arrangement space and cost, reduce influence of the high-temperature systems to cryogenic system, guarantee cooling effect, Engine Inlet Temperature and intake efficiency is effectively ensured, plays engine power performance, prevents pinking.
Description
Technical field
The invention belongs to technical field of automobile engine more particularly to engine-cooling systems.
Background technique
Engine warm-up refers to the process of that engine body temperature rises to normal working temperature from low temperature.Engine is cold to be opened
When dynamic, since gas handling system and temperature cylinder are lower, gasoline is difficult evaporating completely, will cause incomplete combustion, causes C, H a large amount of
Discharge forms pollution.Simultaneously because fuel vaporization is difficult, combustion position is poor, and causes the problem of additionally increasing amount of fuel.Separately
Outside, engine cooling water temperature in warming-up process is relatively low, and engine is increased by the heat that cooling water is taken away, and further increases heat
Loss is further exacerbated by the problem of aforementioned contamination discharge increases with oil consumption.It is temperature when engine cold-start there are one problem
Low, lubricating oil can't effectively work, and cause the internal motion component of engine to rub larger.In consideration of it, solving problem above
Technique direction should be, by way of warming-up speed when improving engine start, reduce oil consumption, reduce disposal of pollutants.
For traditional engine with supercharger, using air cooling system, since pipeline is too long, there is delay, and it
It will receive the influence of speed, optimal cooling effect cannot can be kept under any operating condition.And it is responsible for cooling booster shaft
The booster cooler held is arranged in high-temperature systems, deposits after engine stop, since engine feed pump is inoperative, is easy to make
At the cooling insufficient risk of bearing.Therefore the water-cooling system of low temperature is needed, improves engine efficiency, and guarantee TC bearings
Cooling effect.
Summary of the invention
The purpose of the present invention is to provide a kind of engine dual cycle cooling system, comprising high temperature hydrologic cycle cooling system and
Low temperature hydrologic cycle cooling system reduces oil consumption to improve warming-up speed, and improves the cooling efficiency of engine with supercharger.
Technical scheme is as follows:
A kind of engine dual cycle cooling system includes high temperature hydrologic cycle cooling system and low temperature hydrologic cycle cooling system.
The high temperature hydrologic cycle cooling system includes engine water cylinder body water jacket, cylinder cover water jacket, thermosistor, HVAC, heat dissipation
Device, engine oil cooler, transmission oil cooler, impounding kettle.
High pressure chest and low pressure chamber are equipped in the thermosistor that this system uses, and high pressure chest is not connected to mutually with low pressure chamber, it is high
Pressure chamber is equipped with can be opened and closed channel all the way, need selectively on-off according to load, low pressure chamber is equipped with two-way alternative on-off
Channel needs to be selectively connected partial circulating branch and radiator branch according to load.
Water route connection relationship between this system each section is as follows:
First water outlet of the engine water pump connects cylinder cover water jacket import.
Second water outlet of the engine water pump connects the high pressure chest of thermosistor, the first water outlet of high pressure chest by water route
Mouth connection cylinder body water inlet, after cylinder body water jacket, the water outlet of cylinder body water jacket and the water route of the first water outlet of cylinder cover water jacket are converged
It closes.
This converges water route and connects partial circulating branch and radiator branch respectively, and partial circulating branch connects the first of thermosistor low pressure chamber
Water inlet, radiator branch connect the second water inlet of thermosistor low pressure chamber；The water outlet and engine water pump of thermosistor low pressure chamber
The second water inlet connection.
Second water outlet of thermosistor high pressure chest is separately connected the water inlet of HVAC, engine oil cooler, HVAC, engine
Oil cooler is parallel connection, and its water outlet converges and connect afterwards with the first water inlet of engine water pump.
Second water outlet of cylinder cover water jacket connects impounding kettle, the first water outlet of impounding kettle pass through water route connection water pump the
Three water inlets.
The low temperature water circulation system includes electronic water pump, low-temperature radiator, booster cooler, intercooler and described
Impounding kettle.High/low temperature system shares an impounding kettle, and the second water outlet of impounding kettle and the first water inlet of electronic water pump it
Between be equipped with 1mm throttle orifice.Low temperature water circulation system electronic water pump connects low-temperature radiator, and the first outlet of low-temperature radiator connects
Booster cooler inlet is connect, the second outlet of low-temperature radiator connects intercooler inlet, the first water outlet of booster cooler
Mouth and intercooler outlet are connected after merging into a water outlet with the second water inlet of electronic water pump；The second of booster cooler goes out
The mouth of a river connects the impounding kettle, and the first water inlet of electronic water pump is reconnected after the second water outlet connection throttle orifice of impounding kettle.
The present invention is by design high temperature hydrologic cycle cooling system and low temperature hydrologic cycle cooling system, for engine with supercharger cylinder
Body cylinder cap, it is cooling using high temperature water circulation system, cooling water flow direction can be made according to hair by the selection control switch of thermosistor
Engine load switches over, and realizes rapid warming-up and reduces oil consumption.In the engine cold-start stage, cylinder cover water jacket and cylinder body are kept
Water jacket is cascaded structure, is heated cooling water one circulation twice, utmostly accelerates the heating of cooling water, and cold by oil
Device heat exchange, makes machine oil also be rapidly heated, and reduces engine friction horsepower, reduces oil consumption and discharge.It is higher warm in engine temperature
Machine and hot stage, keep cylinder cover water jacket and cylinder body water jacket is parallel-connection structure, utmostly increase engine water flow, and controllable
The respective water flow of cylinder block and head processed, makes cylinder block and head all reach optimum temperature, to reduce pinking, reduces oil consumption.
It is cooling using low temperature water circulation system for the booster of engine with supercharger, using electronic water pump and shared storage
Kettle uses throttle orifice, reduces arrangement space and cost, and reduced high-temperature systems to the greatest extent between impounding kettle and cryogenic system
Influence to cryogenic system guarantees the cooling effect of cryogenic system, and cryogenic system coolant liquid is made to be maintained at 50 DEG C hereinafter, effectively protecting
Engine Inlet Temperature and intake efficiency are demonstrate,proved, is conducive to play engine power performance, prevents pinking.
Further, this system also has transmission oil cooler, and transmission oil cooler and HVAC and engine oil cooler are arranged side by side
Setting, water inlet are connect with the water outlet water route of thermosistor high pressure chest, the water outlet of water outlet and HVAC 7 and engine oil cooler
Saliva road is converged to be connect with the first water inlet water route of water pump afterwards.By transmission oil cooler access cooling system circulation, when warming-up,
It can also accelerate the raising of transmission oil, reduce transmission friction function, reduce oil consumption.
Detailed description of the invention
Fig. 1 is system structure diagram of the invention；
Fig. 2 be the present invention cold-start phase water flow to schematic diagram；
Fig. 3 be the present invention warm-up period water flow to schematic diagram；
Fig. 4 be the present invention hot stage water flow to schematic diagram；
In the figure, it is marked as 1, engine water pump；2, cylinder cover water jacket；3, cylinder body water jacket；4, thermosistor；5, speed changer machine oil is cold；6,
Engine motor oil is cold；7, HVAC；8, high temperature heat sink；9, impounding kettle；10, thermosistor low pressure chamber；11, thermosistor high pressure chest 12,
Bypass pipe 13, electronic water pump 14, low-temperature radiator 15, booster cooler 16, intercooler 17, throttle orifice.
Specific embodiment
Present invention is further described in detail with specific embodiment with reference to the accompanying drawing:
For the structure of this system referring to Fig. 1, this system includes that mutually independent high temperature hydrologic cycle cooling system and water at low temperature circulation are cold
But system.
The component that high temperature hydrologic cycle cooling system is related to has: engine water pump 1, cylinder body water jacket 3, cylinder cover water jacket 2, thermosistor
4, HVAC 7, high temperature heat sink 8, engine oil cooler 6, transmission oil cooler 5, impounding kettle 9.
Wherein thermosistor 4 uses heat management formula thermosistor TMM(thermal management module), such as Qufu
Its rich EA888-3, ITW ChangAn Automobile 1306040-NE01, in be equipped with high pressure chest 11 and low pressure chamber 10, and high pressure chest and low
Pressure chamber is not connected to mutually, and high pressure chest is equipped with can be opened and closed channel all the way, needs selectively on-off according to load, low pressure chamber is equipped with two-way
The channel of alternative on-off needs to be selectively connected partial circulating branch and radiator branch according to load.
Engine water jacket is intake from cylinder body, is discharged from cylinder cap.
The import of the first water outlet connection cylinder cover water jacket 2 of engine water pump 1.
Second water outlet of engine water pump 1 connects thermosistor high pressure chest 11, and thermosistor high pressure chest 11 goes out moisture two-way,
Water outlet connection cylinder body water inlet all the way, after cylinder body water jacket 3, cylinder body water jacket 3, which is discharged, flows through the first of cylinder cap and cylinder cover water jacket 2
Water outlet converges.This converges mouth and connects partial circulating branch 12 and high temperature heat sink 8 respectively, and partial circulating branch 12 connects thermosistor low pressure chamber
10 the first water inlet, high temperature heat sink 8 connect the second water inlet of thermosistor low pressure chamber 10, the water outlet of thermosistor low pressure chamber 10
It is connect with the second water inlet of water pump 1.
Second water outlet of thermosistor high pressure chest 11 is separately connected speed changer machine oil cold 5, engine motor oil cold 6 and HVAC 7
After water inlet, speed changer machine oil is cold 5, engine motor oil cold 6 and HVAC 7 are parallel connection, and its water outlet converges and water pump 1
The first water inlet connection.
The part water flow of cylinder cover water jacket 2 also passes through connection 9 import of impounding kettle of its second water outlet, the water outlet of impounding kettle 9
Connect the third water inlet of water pump 1.
The first water inlet, the second water inlet, the third water inlet of the above engine water pump 1 can merge into a water inlet
Mouthful.
The component that low temperature hydrologic cycle cooling system is related to has: electronic water pump 13, low-temperature radiator 14, booster cooler
15, intercooler 16, throttle orifice 17 and impounding kettle 9.High/low temperature system shares an impounding kettle 9, and electronic water pump 13 connects low temperature and dissipates
Hot device 14, the first outlet of low-temperature radiator connect 15 import of booster cooler, the second outlet connection of low-temperature radiator 14
16 import of intercooler.15 first water outlet of booster cooler and the outlet of intercooler 16 merge into after a water outlet with electronic water
13 second water inlets are pumped to be connected.The water inlet of the second water outlet connection impounding kettle 9 of booster cooler 15, electronic water pump 13
First water inlet and the second water inlet can merge into a water inlet, and in the second water outlet and electronic water pump of impounding kettle 9
It is connected with throttle orifice 17 between 13 first water inlets, the size of the throttle orifice 17 is 1mm internal diameter, the purpose is to reduce water flow,
High temperature water flow due in is reduced as far as possible to cryogenic system, caused by cryogenic system cooling effect.
Below according to attached drawing further illustrate system in engine cold-start, warming-up when, working method when high temperature:
Referring to fig. 2, in the engine cold-start stage, thermosistor high pressure chest 11 is disconnected, and thermosistor low pressure chamber 10 is all off.It is cooling
----to cylinder cap water inlet, ----flows through and is discharged after cylinder cover water jacket 2 to cylinder cap first flow direction of water are as follows: engine water pump 1 is discharged
Mouthful ----after cylinder body water jacket 3 to cylinder body intake-outlet ----is to speed changer machine oil is cold 5, engine motor oil cold 6 and HVAC
7---- to water pump 1 the first water inlet；2 second water outlet of cylinder cover water jacket --- third to impounding kettle 9---- to water pump 1 into
The mouth of a river, the first water inlet and third water inlet of last water pump 1 return to water pump 1 after converging.
This stage, cylinder body water jacket and cylinder cover water jacket are series connection water route, detailed process are as follows: cold start-up starts, engine water pump 1
Cooling water is pumped out first, cylinder cap water inlet flows into cylinder cover water jacket 2, then flows out from cylinder cap water outlet, a part of coolant liquid warp
It crosses after cylinder body water jacket 3 to cylinder body water outlet, then flows into speed changer machine oil cold 5, engine motor oil cold 6 and HVAC 7 respectively, HVAC 7,
The first water inlet through water pump 1 flows back into water pump 1 after the water outlet of engine oil cooler 6 and speed changer machine oil cold 5 converges.Cylinder head water
The water of second water outlet of set 2 enters impounding kettle 9 by water route, by the first water outlet of impounding kettle 9, using water pump 1
Water is flowed back into water pump 1 by third water inlet.
In the above engine cold-start stage, cylinder body water jacket 2 and cylinder cover water jacket 3 are cascaded structure, and cooling water flows through cylinder body
Water jacket 2 and cylinder cover water jacket 3, long flow path can utmostly realize warming-up, accelerate the heating rate of coolant liquid and lubricating oil, drop
Low friction function achievees the purpose that fuel-economizing and reduces discharge.
Referring to Fig. 3, in the engine warm-up stage, thermosistor high pressure chest 11 is closed, and keeps the first of thermosistor low pressure chamber 10
Water inlet closure and the second water inlet off-state.The detailed flow direction of cooling water are as follows: engine water pump 1 be discharged ----to cylinder cap into
The mouth of a river ----flow through after cylinder cover water jacket 2 to 2 second water outlet of the cylinder cover water jacket ----third to impounding kettle 9---- to water pump 1 into
The mouth of a river.Engine water pump 1 is discharged --- and-another part water flow to thermosistor high-pressure chamber 11---- thermosistor high-pressure chamber 11
A part of water, which flow to cylinder body water inlet, ----to be flowed through and converges ----with the first water outlet of cylinder cap after cylinder body water jacket 3 and flow to partial circulating branch
Second water inlet of road 12--- thermosistor high-pressure chamber 10---- engine water pump 1.Another part water of thermosistor high pressure chest 11
It flow to the first water inlet of speed changer machine oil cold 5, engine motor oil cold 6 and HVAC 7---- to engine water pump 1；Finally, hair
The first water inlet, the second water inlet and the third water inlet of motivation water pump 1 return to the water inlet of water pump 1 after converging.
This stage, cylinder body water jacket and cylinder cover water jacket are water route in parallel, detailed process are as follows: by the cooling water of cold-start phase
After circulation, cooling water has certain temperature, and cooling water is pumped out from engine water pump 1, and a part flow to cylinder cap water inlet, flows through
Then cylinder cover water jacket 2 is flowed out from cylinder cap water outlet, a part of water flow to impounding kettle 9, by the first water outlet of impounding kettle 9, then
Third water inlet through engine water pump 1 flows back to engine water pump 1.The water outlet of another part engine water pump 1 then flow to thermosistor
Water outlet a part of high pressure chest 11, thermosistor high pressure chest 11 flow to cylinder body water inlet, flows through cylinder body water jacket 3, then with cylinder head water
Another part water of 2 outflow of set converges, and converges water and flows through partial circulating branch 12, into thermosistor low pressure chamber 10, then through engine
Second water inlet of water pump 1 flows back to engine water pump 1；Another part water of thermosistor high pressure chest 11 flow into speed changer machine oil it is cold 5,
Engine motor oil is cold 6, HVAC 7, their water outlet flow to the first water inlet of engine water pump 1, finally flows back to water pump 1.
This stage cylinder body water jacket 2 and cylinder cover water jacket 3 are parallel-connection structure, can utmostly increase flow system flow, pass through list
The solely water flow of control cylinder body and cylinder cap, makes cylinder body and cylinder cap all reach optimum temperature, to reduce pinking, reduces oil consumption.
Referring to fig. 4, in the engine high-temperature stage, thermosistor high pressure chest 11 is closed, and keeps the first of thermosistor low pressure chamber 10
Water inlet disconnects and the second water inlet closed state.The flow direction of cooling water are as follows: compared with warm-up period, partial circulating branch 12 is disconnected
It is not involved in system circulation, 8 branch of radiator replaces partial circulating branch 12 to participate in system circulation, from the one of cylinder cap water outlet meet
Part water flow to 1 second water inlet of radiator 8--- thermosistor high-pressure chamber 10---- water pump, other branch water flows are to keeping not
Become.Finally, the first water inlet of water pump 1, the second water inlet and third water inlet return to the water inlet of water pump 1 after converging.
This stage, cylinder body water jacket and cylinder cover water jacket are also water route in parallel, detailed process are as follows: temperature higher cooling water
It is pumped out from engine water pump 1, a part flow to cylinder cap water inlet, flows through cylinder cover water jacket 2, then flows out from cylinder cap water outlet, one
Part water flow to impounding kettle 9, and by the first water outlet of impounding kettle 9, the third water inlet through engine water pump 1 flows back to and starts again
Machine water pump 1.The water outlet of another part engine water pump 1 then flow to thermosistor high pressure chest 11, the water outlet of thermosistor high pressure chest 11 one
Cylinder body water inlet is branched to, cylinder body water jacket 3 is flowed through, another part water then flowed out with cylinder cover water jacket 2 converges, and converges water and flows through
Radiator 8, the second water inlet into thermosistor low pressure chamber 10, then through engine water pump 1 flow back to engine water pump 1；Thermosistor
Another part water of high pressure chest 11 flows into that speed changer machine oil is cold 5, engine motor oil is cold 6, HVAC 7, their water outlet, which is flow to, starts
First water inlet of machine water pump 1, finally flows back to water pump 1.
The stage cylinder body water jacket 3 and cylinder cover water jacket 2 are parallel-connection structure, in addition to utmostly increasing flow system flow, are individually controlled
Outside the water flow of cylinder block and head processed, also pass through cooling for radiator, overheat engine will not, keeping cylinder block and head is most
Good temperature reduces pinking, reduces oil consumption.
Electronic water pump 13 in engine cold-start stage, warm-up period and hot stage, low temperature water circulation system
Water outlet flow to low-temperature radiator 14, and the water outlet of low-temperature radiator 14 flows to booster cooler 15 and intercooler 16, electronics respectively
The water outlet of water pump 13 flow to low-temperature radiator 14, and the water outlet of low-temperature radiator 14 flows to booster cooler 15 and intercooler respectively
16, the water outlet of booster cooler 15 and intercooler 16 directly flows back to electronic water pump 13 after converging all the way.Booster cooler 15
The second water outlet flow to impounding kettle 9, then the second water outlet through impounding kettle 9 flows back to electronic water pump 13 by throttle orifice 17.
The response time of engine with supercharger can be improved in low temperature water circulation system in this system, and can be according to engine
Cooling requirement starts electronic water pump, guarantees the best intake air temperature of engine under any operating condition, and guarantees shutdown phase
TC bearings cooling effect.
Claims (6)
1. a kind of engine dual cycle cooling system, it is characterised in that: it is followed including high temperature hydrologic cycle cooling system and water at low temperature
Ring cooling system；
The high temperature hydrologic cycle cooling system includes that cylinder body water jacket, cylinder cover water jacket, thermosistor, HVAC, radiator, engine oil are cold
Device, impounding kettle；
High pressure chest and low pressure chamber are equipped in the thermosistor, and high pressure chest is not connected to mutually with low pressure chamber, high pressure chest is equipped with all the way
It can be opened and closed channel, selectively on-off is needed according to load, low pressure chamber is equipped with the channel of two-way alternative on-off, according to load
It needs to be selectively connected partial circulating branch and radiator branch；
First water outlet of the engine water pump connects cylinder cover water jacket import；
The high pressure chest of the second water outlet connection thermosistor of the engine water pump, the first water outlet connection of thermosistor high pressure chest
Cylinder body water inlet, after cylinder body water jacket, the water route of the water outlet and the first water outlet of cylinder cover water jacket of cylinder body water jacket is converged；
This converges water route and connects partial circulating branch and radiator branch respectively, and partial circulating branch connects the first water inlet of thermosistor low pressure chamber
Mouthful, radiator branch connects the second water inlet of thermosistor low pressure chamber；The of the water outlet of thermosistor low pressure chamber and engine water pump
The connection of two water inlets；
Second water outlet of thermosistor high pressure chest is separately connected the water inlet of HVAC, engine oil cooler, and HVAC, engine oil are cold
Device is parallel connection, and its water outlet converges and connect afterwards with the first water inlet of engine water pump；
Second water outlet of cylinder cover water jacket connects impounding kettle, and the water outlet of impounding kettle is intake by the third that water route connects water pump
Mouthful；
The low temperature hydrologic cycle cooling system includes electronic water pump, low-temperature radiator, booster cooler, intercooler and the storage
Kettle；Electronic water pump connects low-temperature radiator, and the first outlet of low-temperature radiator connects booster cooler inlet, low temperature radiation
The second outlet of device connects intercooler inlet, and the first water outlet and intercooler outlet of booster cooler merge into a water outlet
It is connected after mouthful with the second water inlet of electronic water pump；Second water outlet of booster cooler connects the impounding kettle, impounding kettle
Second water outlet connects the first water inlet of reconnection electronic water pump after throttle orifice.
2. engine dual cycle cooling system according to claim 1, it is characterised in that:
In the engine cold-start stage, cylinder body water jacket and cylinder cover water jacket are series connection water route, and the channel of thermosistor high pressure chest is in disconnected
The channel of open state, thermosistor low pressure chamber is completely in off-state: cooling water is pumped out from engine water pump circulation, flow to cylinder cap
Water inlet, by cylinder cover water jacket, a part of water flow flow to impounding kettle from the second water outlet of cylinder cap, then through engine water pump 1
Three water inlets flow back to engine water pump；Another part water flow is discharged after cylinder body water jacket to cylinder body from the first water outlet of cylinder cap
Mouthful, then flow into engine motor oil cold 6 and HVAC respectively, the water outlet of HVAC, engine oil cooler converge after through engine water pump
First water inlet flows back into engine water pump；
In the engine warm-up stage, cylinder body water jacket and cylinder cover water jacket are water route in parallel, the channel of thermosistor high pressure chest and low pressure chamber
The first water inlet in closed state, the second water inlet of thermosistor low pressure chamber is in an off state；Cooling water is from engine
Water pump pumps out, and a part flow to cylinder cap water inlet, and by cylinder cover water jacket, a part of water flow flow to storage from the second water outlet of cylinder cap
Kettle, then the third water inlet through engine water pump 1 flow back to engine water pump；Another part of engine water pump water outlet flow to tune
Water outlet a part of warm device high pressure chest, thermosistor high pressure chest flow to cylinder body water inlet, after flowing through cylinder body water jacket, goes out with cylinder cap first
Inlet water stream converges, and converges water and flows through partial circulating branch, the second water inlet into thermosistor low pressure chamber, then through engine water pump
Flow back to engine water pump；Another part water of thermosistor high pressure chest flows into that engine motor oil is cold and HVAC, engine motor oil it is cold and
The water outlet of HVAC flow to the first water inlet of engine water pump, finally flows back to engine water pump；
In the engine high-temperature stage, cylinder body water jacket and cylinder cover water jacket are water route in parallel, the channel of thermosistor high pressure chest and thermosistor
Second water inlet of low pressure chamber is off-state in closed state, the first water inlet of thermosistor low pressure chamber；Cooling water is from hair
Motivation water pump pumps out, and a part flow to cylinder cap water inlet, and by cylinder cover water jacket, a part of water flow is flowed from the second water outlet of cylinder cap
Engine water pump is flowed back to impounding kettle, then the third water inlet through engine water pump；Another part stream of engine water pump water outlet
To thermosistor high pressure chest, water outlet a part of thermosistor high pressure chest flow to cylinder body water inlet, after flowing through cylinder body water jacket, with cylinder cap
One water outlet water flow is converged, and converges water and flows through radiator, the second water inlet into thermosistor low pressure chamber, then through engine water pump
Flow back to engine water pump；Another part water of thermosistor high pressure chest flows into that engine motor oil is cold and HVAC, engine motor oil it is cold and
The water outlet of HVAC flow to the first water inlet of engine water pump, finally flows back to engine water pump；
Low temperature hydrologic cycle cooling system is in engine cold-start stage, warm-up period and hot stage: electronic water pump goes out water flow
To low-temperature radiator, the water outlet of low-temperature radiator flows to booster cooler and intercooler respectively, and the first of booster cooler
The water outlet of water outlet and intercooler directly flows back to electronic water pump after converging；Second water outlet of booster cooler flow to the water storage
Pot, then electronic water pump is flowed back to through throttle orifice.
3. engine dual cycle cooling system according to claim 1 or 2, it is characterised in that: also have transmission oil cold
Device is set side by side with HVAC and engine oil cooler, and water inlet is connect with the water outlet water route of thermosistor high pressure chest, water outlet
Converge with the water outlet water route of HVAC and engine oil cooler and is connect afterwards with the first water inlet water route of water pump.
4. engine dual cycle cooling system according to claim 1 or 2, it is characterised in that: the engine water pump
One, second, third water inlet can merge into a water inlet.
5. engine dual cycle cooling system according to claim 1 or 2, it is characterised in that: the thermosistor low pressure chamber
The first water outlet and the second water outlet can merge into a water outlet.
6. engine dual cycle cooling system according to claim 1 or 2, it is characterised in that: the thermosistor is using warm
Management formula thermosistor TMM.
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| CN201810967021.9A CN109139224A (en) | 2018-08-23 | 2018-08-23 | A kind of engine dual cycle cooling system |
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| CN201810967021.9A CN109139224A (en) | 2018-08-23 | 2018-08-23 | A kind of engine dual cycle cooling system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110185527A (en) * | 2019-07-04 | 2019-08-30 | 中车戚墅堰机车有限公司 | Cooling Water of Diesel Locomotive system |
| CN110725768A (en) * | 2019-11-25 | 2020-01-24 | 湘电重型装备有限公司 | Engine preheating system in low-temperature environment and control method |
| CN111396186A (en) * | 2020-04-16 | 2020-07-10 | 昆明云内动力股份有限公司 | Split type cooling system and method for engine |
| CN114263523A (en) * | 2020-09-16 | 2022-04-01 | 比亚迪股份有限公司 | Engine water jacket, cooling system and vehicle |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110185527A (en) * | 2019-07-04 | 2019-08-30 | 中车戚墅堰机车有限公司 | Cooling Water of Diesel Locomotive system |
| CN110725768A (en) * | 2019-11-25 | 2020-01-24 | 湘电重型装备有限公司 | Engine preheating system in low-temperature environment and control method |
| CN111396186A (en) * | 2020-04-16 | 2020-07-10 | 昆明云内动力股份有限公司 | Split type cooling system and method for engine |
| CN111396186B (en) * | 2020-04-16 | 2023-08-08 | 昆明云内动力股份有限公司 | Split type cooling system and method for engine |
| CN114263523A (en) * | 2020-09-16 | 2022-04-01 | 比亚迪股份有限公司 | Engine water jacket, cooling system and vehicle |
| CN114263523B (en) * | 2020-09-16 | 2023-10-13 | 比亚迪股份有限公司 | Engine water jacket, cooling system and vehicle |
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Application publication date: 20190104 |