CN105351064B - Gasoline engine cooling system - Google Patents
Gasoline engine cooling system Download PDFInfo
- Publication number
- CN105351064B CN105351064B CN201510888205.2A CN201510888205A CN105351064B CN 105351064 B CN105351064 B CN 105351064B CN 201510888205 A CN201510888205 A CN 201510888205A CN 105351064 B CN105351064 B CN 105351064B
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- Prior art keywords
- cylinder body
- cylinder
- water
- cooling
- cooling water
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Classifications
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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
- F01P3/02—Arrangements for cooling cylinders or cylinder heads
-
- 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
- F01P3/12—Arrangements for cooling other engine or machine parts
-
- 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
-
- 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
-
- 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
- F01P3/00—Liquid cooling
- F01P3/02—Arrangements for cooling cylinders or cylinder heads
- F01P2003/027—Cooling cylinders and cylinder heads in parallel
-
- 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
- F01P2023/00—Signal processing; Details thereof
- F01P2023/08—Microprocessor; Microcomputer
-
- 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
-
- 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
-
- 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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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The invention discloses a kind of gasoline engine cooling system, including cylinder body and the internal circulation system of Cooling of Cylinder Head and booster and the external circulating system of charge air cooler cooling for gasoline engine for gasoline engine；The present invention can be directed to different working conditions has different cooling capacities to the cylinder body and cylinder cap of engine, form differentiationization cooling, the cylinder body and cylinder cap for making engine work in each optimum temperature set-point, and when engine has just started or idling travels, it is brought rapidly up water temperature and cylinder body, simultaneously in cylinder cap or too high center housing temperature, there is cooling effect in preferably；Also it may be such that in the case of tail-off, although now the circulation of machine oil stops, cooling circuit by turbocharger still can be that turbine is radiated, prevent coolant gasification from causing to corrode to turbocharger, and car owner can stop without idling, the trouble of car owner is eliminated, on the other hand also saves fuel consumption meaningless during idling, more energy-conserving and environment-protective.
Description
Technical field
The present invention relates to engine components cooling field, more particularly to a kind of gasoline engine cooling system.
Background technology
Engine can produce substantial amounts of heat when working, and influence charging efficiency and the operating efficiency of cylinder, it is therefore desirable to right
It is cooled down.Exist on the engine of turbocharging technology, be usually provided with interior circulating cooling system and outer circulation cooling system
System.
Engine cylinder-body and cylinder cap collectively constitute power-transmitting part --- the shell of piston and bent axle, when engine does work
Substantial amounts of heat can be produced, in order to by the heat from motor body (i.e. cylinder body and cylinder cap) discharge, it is necessary to engine cylinder
Body is with setting cooling-water duct in cylinder cap, so that cooling water flows through cylinder body and takes away heat with cylinder cap, this is followed for the interior of engine
Ring cools down.In engine working process, to improve mechanical efficiency and fuel economy, cylinder cap temperature needs are relatively low, and cylinder body
Temperature needs are of a relatively high, because cylinder cap temperature is low to improve charging efficiency, increase air inflow, temperature is low and air inflow can promote greatly
Enter completely burned, reduce NOx formation, improve power output, center housing temperature is higher, can reduce friction loss, directly improves combustion
Oily efficiency and raising power output, it is indirect to reduce surge pressure and temperature in cylinder；And the cooling system of existing engine, it is cold
But water is pumped into cylinder body by water pump and enters back into cylinder cap, or respectively enters cylinder body and cylinder cap, makes operating of the cooling water with engine
Ceaselessly circulate, such a type of cooling can not cool down to making a distinction of gray iron, and it is inclined to often result in automobile cooling capacity
Greatly, it is impossible to reach the perfect condition of " cylinder cap temperature is relatively low and center housing temperature is of a relatively high " this engine thermal work, especially
When just starting in engine, fuel consumption is larger；Moreover, each position lubricating oil of engine when engine just starts does not have also
In place, engine block temperature is too low, can produce the dry grinding of parts, causes the parts premature wear such as cylinder sleeve, axle journal, gear.
And outer circulation cooling refers to the cooling to the booster and charge air cooler of engine, in turbocharged engine, meeting
It is required that car owner not stop working immediately after running at high speed for a long time, but engine idling operation is allowed for a period of time, because immediately
Flame-out, coolant circulation also stops therewith, coolant gasification, corrodes turbocharger；Machine oil, which runs into high temperature, can also go bad, and lose
Lubrication so that turbo impairment.Such a type of cooling can greatly influence the driver comfort of driver, Er Qie
Car owner because emergency immediately stop working when, also turbocharger can be caused to damage.
Therefore, it is necessary to provide a kind of gasoline engine cooling system, different working conditions can be not only directed to engine
Cylinder body and cylinder cap have a different cooling capacities, form differentiationizations and cool down, make engine cylinder body and cylinder cap in respective optimum
Temperature set-point work, and engine just started or idling travel when, be brought rapidly up water temperature and cylinder body, reduce oil consumption,
Simultaneously in cylinder cap or too high center housing temperature, there is cooling effect in preferably, and can normally be protected when engine works
The cooling to engine supercharging system is demonstrate,proved, after engine misses state, can still ensure the cooling effect of pressure charging system, reduction pair
The damage of turbocharger.
The content of the invention
In view of this, the present invention provides a kind of gasoline engine cooling system, can not only be directed to different working conditions to starting
The cylinder body and cylinder cap of machine have a different cooling capacities, form differentiationizations and cool down, make engine cylinder body and cylinder cap each most
Suitable temperature set-point work, and when engine has just started or idling travels, it is brought rapidly up water temperature and cylinder body, reduce oil
Consumption, while in cylinder cap or too high center housing temperature, there is cooling effect in preferably, and can be normal when engine works
Ensure the cooling to engine supercharging system, after engine misses state, can still ensure the cooling effect of pressure charging system, reduce
Damage to turbocharger.
A kind of gasoline engine cooling system of the present invention, including cylinder body and the internal circulation system of Cooling of Cylinder Head for gasoline engine
With the booster for gasoline engine and the external circulating system of charge air cooler cooling；
The internal circulation system includes gray iron, the water pump for providing cooling water for cylinder body and cylinder cap and can be internal
The radiator I that recirculated cooling water is radiated, the cooling water water side of the cylinder cap are provided with water-supplying chamber, the cylinder interior shape
Into there is cylinder block cooling water road；Also include cylinder body thermosistor and cylinder cap thermosistor, the cylinder body thermosistor is arranged on cylinder block cooling water
The water inlet in road, which is used to control, to be opened and closed, and the cylinder cap thermosistor is arranged on the cooling water water outlet for being used for application cylider cover in water-supplying chamber
End connects with the keying of engine, and the cylinder cap thermosistor just opens temperature and just opens temperature higher than the cylinder body thermosistor；
When cooling water temperature just opens temperature less than cylinder body thermosistor, cooling water is not cooled down to cylinder body to Cooling of Cylinder Head, and cold
But water returns to water pump without radiator I；
Between temperature is opened at the beginning of cooling water temperature just opens temperature and cylinder cap thermosistor between cylinder body thermosistor, cooling water is to cylinder body
Cooled down with cylinder cap, now cooling water still returns to water pump without radiator I；
When cooling water temperature just opens temperature higher than cylinder cap thermosistor, cooling water cools down to cylinder body and cylinder cap, and cooling water
Water pump can be returned through radiator I；
The external circulating system includes booster, charge air cooler, the electric control pump for providing cooling water and forms water circulation
The cooling line of path；The external circulating system also includes control system, and the control system comprises at least processing unit and divided
The detection unit I and timing circuit not being attached thereto, the detection unit I are used for the misfire signals for detecting engine, the place
Reason unit is used to receive the misfire signals and is used for triggering timing simultaneously to timing circuit output control order, the timing circuit
After timing terminates timing end signal is exported to processing unit；The electric control pump is connected with the processing unit, the place
Control electric control pump is stopped after reason unit receives timing end signal.
Further, the water inlet of the Cooling of Cylinder Head water channel of the cylinder cap keeps cooling water to enter all the time；
After cylinder body thermosistor is opened, the cooling water of cylinder body cooling is imported from after the delivery port outflow in cylinder block cooling water road
In the Cooling of Cylinder Head water channel of cylinder cap.
Further, the internal circulation system also includes heater and oil cooler；
Before opening at the beginning of the cylinder cap thermosistor, the cooling water come out from the cooling water water side of cylinder cap all fills by warm winds successively
Put and return water pump with oil cooler；
After opening at the beginning of the cylinder cap thermosistor, the cooling water section come out from the cooling water water side of cylinder cap fills by warm wind successively
Put and return water pump with oil cooler, other part returns to water pump through radiator I；
The warm wind for keeping often connecting with the water inlet end of the heater of engine is provided with water-supplying chamber and connects water outlet.
Further, cylinder body sets the cylinder body of oriented cylinder interior extension in the opening position of corresponding cylinder body cooling water channel water inlet
Thermosistor mounting hole, cylinder body thermosistor mounting hole the inner connect with cylinder block cooling water road, are additionally provided with the cylinder body for water
Pump is pumped into cooling water and the cylinder block cooling water inlet channel connected with cylinder body thermosistor mounting hole sidepiece；
The cylinder body thermosistor is including cylinder body temperature adjustment component and for stationary housing temperature adjustment component and is installed on cylinder body
The inner mounting bracket with cylinder block cooling water road connectivity part of thermosistor mounting hole.
Further, mounting bracket includes the end cap that can be fixedly connected with cylinder body and is connected with end cap and can be by cylinder body temperature adjustment component
It is fixed to be stretched into the fixed body set inside the thermosistor mounting hole；
The clamping plate that the fixed body is set by least two one-tenth clamp positions is formed, and the cylinder body temperature adjustment component is located at clamping plate
Between, cylinder body temperature adjustment component is formed between clamping plate and radially gripped.
Further, cylinder body temperature adjustment component for limiting its position limiting structure vertically moved relative to clamping plate by being fixed on folder
On plate, the position limiting structure by the neck that is set on clamping plate and by cylinder body temperature adjustment component upper bracket circumferential edge radially
Edge clipping that is that extension is formed and inserting the neck is formed.
Further, end cap includes lid body and is arranged at lid body medial surface and the annular of positioning is formed for being embedded in cylinder body
Location division, position boss structure on the outside of circular orientation portion；
The sealing ring I for forming sealing between inboard wall of cylinder block is added at the boss structure in circular orientation portion；
The upper bracket periphery of the cylinder body temperature adjustment component adds the sealing ring II for forming sealing between inboard wall of cylinder block.
Further, it is 20 DEG C -25 that cylinder cap thermosistor, which just opens temperature higher than the value range that temperature is opened at the beginning of the cylinder body thermosistor,
℃。
Further, detection unit II, it is connected with the processing unit, for detecting the enabling signal of engine；Work as processing
Unit controls electric control pump to start working after receiving enabling signal.
Further, cooling line includes being used for the charge air cooler water inlet pipe of charge air cooler cooling water inlet and cooled down out for charge air cooler
The charge air cooler return pipe of water, in addition to for booster cooling water inlet volume booster water inlet pipe and for booster cooling water water outlet
Booster return pipe, be integrally formed on the charge air cooler water inlet pipe and be provided with water inlet end connection for booster water inlet pipe
Booster water inlet pipe connects pipeline section, and the increasing of the water side connection for booster return pipe is provided with the charge air cooler return pipe
Depressor return pipe connects pipeline section.
Beneficial effects of the present invention：The gasoline engine cooling system of the present invention, wherein, due to cylinder body temperature adjustment in internal circulation system
Device is arranged at the water inlet in cylinder block cooling water road, and cylinder cap thermosistor is arranged on the water side of cylinder cap, and cylinder cap thermosistor is just opened
Temperature just opens temperature higher than the cylinder body thermosistor, by cylinder cap thermosistor be responsible for control connect with engine radiator I it is big
The opening and closing of circulation waterway, it is responsible for controlling the internal watercourses circulating path between cylinder body and cylinder cap by cylinder body thermosistor, when cylinder body is adjusted
When warm device is closed, circulating path is that cooling water is flowed directly into cylinder cap, can now ensure to be brought rapidly up during idling, so as to reduce oil
Consumption, when cylinder body thermosistor is opened, circulating path is that cooling water flows to cylinder body and cylinder cap respectively, and cooling effect is notable, is advantageous to
Reduce thermic load；In a word, the internal circulation system in the present invention can be directed to cylinder body and cylinder cap of the different working conditions to engine
With different cooling capacities, differentiationization cooling is formed, the cylinder body and cylinder cap for making engine are set in each optimum temperature
Point work, and when engine has just started or idling travels, it is brought rapidly up water temperature and cylinder body, so as to reduce oil consumption, while
When cylinder cap or too high center housing temperature, there is preferable cooling effect again.
In addition, external circulating system in the present invention passes through processing unit control meter by detecting the misfire signals of engine
When circuit work, then order electric control pump is stopped again after timing terminates so that in the case of tail-off, though
So now the circulation of machine oil stops, and the cooling circuit by turbocharger still can be that turbine is radiated, and prevent from cooling down
Liquid gasification causes to corrode to turbocharger, and car owner can stop without idling, eliminate the trouble of car owner, on the other hand
Also save fuel consumption meaningless during idling, more energy-conserving and environment-protective.
Brief description of the drawings
The invention will be further described with reference to the accompanying drawings and examples.
Fig. 1 is overall structure diagram of the present invention；
Fig. 2 is Fig. 1 top views；
Fig. 3 is when water temperature is less than waterway circulating figure when cylinder body thermosistor just opens temperature in the present invention；
Fig. 4 is the water when water temperature is being opened between temperature at the beginning of temperature to cylinder cap thermosistor is opened at the beginning of cylinder body thermosistor in the present invention
Road circulation figure；
Fig. 5 is when water temperature is more than waterway circulating figure when cylinder cap thermosistor just opens temperature in the present invention；
Fig. 6 is the cylinder body thermosistor structural representation in the present invention；
Fig. 7 is the cylinder body thermosistor cross-sectional view in the present invention；
Fig. 8 is cylinder body thermosistor and cylinder body assembling schematic diagram in the present invention；
Fig. 9 is the housing structure schematic diagram in the present invention；
Figure 10 is the mounting bracket structural representation of the cylinder body thermosistor in the present invention；
Figure 11 is the sectional structure chart of the mounting bracket of the cylinder body thermosistor in the present invention；
Figure 12 is the control system flow chart of external circulating system in the present invention；
Figure 13 is the cooling line layout drawing of external circulating system in the present invention.
Embodiment
Fig. 1 is overall structure diagram of the present invention, and Fig. 2 is Fig. 1 top views, and Fig. 3 is when water temperature is less than cylinder body in the present invention
Thermosistor just opens waterway circulating figure during temperature, and Fig. 4 adjusts to open temperature to cylinder cap at the beginning of cylinder body thermosistor when water temperature in the present invention
Warm device just opens waterway circulating figure when between temperature, and Fig. 5 is when water temperature is more than when cylinder cap thermosistor just opens temperature in the present invention
Waterway circulating figure, Fig. 6 are the cylinder body thermosistor structural representation in the present invention, and Fig. 7 is the cylinder body thermosistor section in the present invention
Structural representation, Fig. 8 are cylinder body thermosistor and cylinder body assembling schematic diagram in the present invention, and Fig. 9 is the housing structure in the present invention
Schematic diagram, Figure 10 are the mounting bracket structural representation of the cylinder body thermosistor in the present invention, and Figure 11 is the cylinder body temperature adjustment in the present invention
The sectional structure chart of the mounting bracket of device, Figure 12 are the control system flow chart of external circulating system in the present invention, and Figure 13 is the present invention
The cooling line layout drawing of middle external circulating system, as shown in the figure：The gasoline engine cooling system of the present embodiment, including cylinder body 1, cylinder cap
2nd, for provided for cylinder body and cylinder cap cooling water water pump and can the radiator I that is radiated of inner loop cooling water, cylinder cap 2
Cooling water water side is provided with water-supplying chamber 3, and cylinder body 1 has been internally formed cylinder block cooling water road 1-1；Also include the He of cylinder body thermosistor 4
Cylinder cap thermosistor 5, cylinder body thermosistor 4 are arranged on cylinder block cooling water road 1-1 water inlet, and cylinder cap thermosistor 5 is arranged on water outlet
Open and close and connect with the radiator I 9 of engine for the cooling water water side of application cylider cover 2 in room 3；Cylinder cap thermosistor 5 just opens temperature
Degree just opens temperature higher than the cylinder body thermosistor 4；Wherein, the temperature adjustment component 4-1 parts of cylinder body thermosistor 4 and cylinder cap thermosistor 5
It is conventional wax formula thermosistor, mainly includes upper bracket 4-1-1, lower carriage 4-1-2 and be used between being arranged on upper and lower support to cold
But the main valve 4-1-3 that water channel opens and closes, belongs to prior art, will not be repeated here；
Cooling water is provided by the water pump 6 of engine needed for cylinder body 1 and cylinder cap 2, and cylinder cap thermosistor 5 just opens temperature higher than described
Cylinder body thermosistor 4 just open temperature, wherein, cylinder body thermosistor 4 it is first open temperature to standard-sized sheet temperature range be 70-85 DEG C, cylinder cap tune
To open temperature to standard-sized sheet temperature range be 92-106 DEG C for warm device 5 first, and cylinder cap thermosistor 5 just opens temperature and is higher than the cylinder body temperature adjustment
The value range that device 4 just opens temperature is 20 DEG C -25 DEG C, preferably 20 DEG C, 22 DEG C, 25 DEG C；
When cooling water temperature is being opened below temperature at the beginning of cylinder body thermosistor 4, cylinder body thermosistor 4 is closed, and now cooling water is
Part partial circulating state, cooling water are not passed through cylinder block cooling water road, but flow through Cooling of Cylinder Head water channel to Cooling of Cylinder Head, and cooling water
Water pump 6 is returned to without the radiator I 9 of engine；
When cooling water temperature just opens temperature higher than cylinder body thermosistor 4 but just opens temperature less than cylinder cap thermosistor 5, cylinder body
Thermosistor 4 is opened, and now cooling water is whole partial circulatings, and cooling water flows through cylinder block cooling water road and Cooling of Cylinder Head water channel, and cold
But water equally returns to water pump 6 without radiator I 9；
When cooling water temperature just opens temperature higher than cylinder cap thermosistor 5, cylinder body thermosistor 4 and cylinder cap thermosistor 5 are opened, this
When cooling water be systemic circulation, cooling water flows through cylinder block cooling water road and Cooling of Cylinder Head water channel, and cooling water is straight by radiator I 9
Take back water pump 6.
In addition, in the present embodiment, external circulating system includes booster 10, charge air cooler 11, for providing the automatically controlled of cooling water
Water pump 13 and the cooling line for forming water circulation path；External circulating system also includes control system, and control system comprises at least place
Reason unit 14 and the detection unit I 15 and timing circuit 16 being attached thereto respectively, detection unit I 15 are used to detect putting out for engine
Fiery signal, processing unit 14 are used to receive the misfire signals and use to the output control order of timing circuit 16, timing circuit 16
In triggering timing and after timing terminates timing end signal is exported to processing unit 14；Electric control pump 13 connects with processing unit 14
Connect, control electric control pump 13 is stopped after processing unit 14 receives timing end signal；Certainly, in addition to for automatically controlled
The power supply that water pump 13 is powered, power supply and electric control pump 13 are the independent agency being separately provided, and are controlled by processing unit 14
System, wherein, processing unit 14 is integrated chip or controller, and detection unit I 15 is used to detect misfire signals, and misfire signals are inspection
Survey unit I 15 detect engine ignition switch be closed and engine from running status switch to flameout state when letter
Number, timing circuit 16 is prior art circuits structure, and realization can start timing and be exported at the end of timing to processing unit 14
Timing end signal, it is prior art, will not be repeated here, moreover, processing unit therein 14 and timing circuit 16 is equal
Can it be can be achieved by existing structure, the improvement not being related in any program.
In the present embodiment, the water inlet of the Cooling of Cylinder Head water channel of the cylinder cap 2 keeps cooling water to enter all the time；I.e. no matter cylinder
Whether body thermosistor 4 and cylinder cap thermosistor 5 open or close, and cooling water, which can remain, flows through Cooling of Cylinder Head water channel to cylinder cap 2
Cooled down, so as to ensure that cylinder cap 2 is cooled down all the time in engine working process；
After cylinder body thermosistor 4 is opened, the cooling water that cylinder body 1 cools down is flowed out from cylinder block cooling water road 1-1 delivery port
Import afterwards in the Cooling of Cylinder Head water channel of cylinder cap 2；I.e. after cylinder body thermosistor 4 is opened, cooling water can enter cylinder block cooling water road 1-1
It is interior that cylinder body 1 is cooled down, it can be flowed into cylinder cap 2 after finally being come out from the cooling water in cylinder block cooling water road 1-1 from cylinder body 1, and
Import in Cooling of Cylinder Head water channel, and cylinder cap 2 flowed out from the water side of Cooling of Cylinder Head water channel so that either the cooling water of cylinder body 1 and
The cooling water of cylinder cap 2 can be finally incorporated to same temperature value.
In the present embodiment, the gasoline engine cooling system also includes heater and oil cooler；
Before opening at the beginning of the cylinder cap thermosistor, the cooling water come out from the cooling water water side of cylinder cap all fills by warm winds successively
Put and return water pump with oil cooler；
After opening at the beginning of the cylinder cap thermosistor, the cooling water section come out from the cooling water water side of cylinder cap fills by warm wind successively
Put and return water pump with oil cooler, other part returns to water pump through radiator I；
The warm wind for keeping often connecting with the water inlet end of the heater of engine 7 is provided with water-supplying chamber 3 and connects water outlet
3-1；
The cooling water flowed out from the cooling water water side of cylinder cap 2 can enter after the water inlet end of heater 7 all the time
Oil cooler 8, the water inlet end of heater 7 is supplied water and machine oil is cooled down, before the opening of cylinder cap thermosistor 5, from cylinder cap 2
The cooling water of cooling water water side outflow is all to enter warm wind peripheral passage through warm wind connection water outlet 3-1, and finally through machine
Oil cooler 8 returns to water pump 6, and water pump is by water pump water return pipeline 6-1 backwater, after cylinder cap thermosistor 5 is opened, from cylinder cap 2
The cooling water of cooling water water side outflow is that part enters warm wind peripheral passage through warm wind connection water outlet 3-1, and other part is entered
Enter radiator I 9 to be radiated, return water pump 6.
In the present embodiment, cylinder body 1 is set inside oriented cylinder body 1 in the opening position of corresponding cylinder body cooling water channel 1-1 water inlets
The cylinder body thermosistor mounting hole 1-2 of extension, cylinder body thermosistor mounting hole 1-2 the inner connect with cylinder block cooling water road 1-1, cylinder body 1
On be additionally provided be pumped into cooling water for water pump 6 and connected with cylinder body thermosistor mounting hole 1-2 sidepieces cylinder block cooling water water inlet
Road 1-3；Existing cylinder body thermosistor more than 4 is taken through flange face and is installed to the end face of water-supplying chamber 3 of cylinder cap 2 or the outside of cylinder body 1
On, i.e., thermosistor is placed on the outside of cylinder body 1 or cylinder cap 2, and not only temperature sense is insensitive, and needs to take larger installation sky
Between so that cylinder body overall structure is not compact enough；And carried out by way of end face of flange installation, it is necessary to smear fluid sealant
Sealing, in the case that usage time is longer, sealing effectiveness is difficult to ensure that；By setting cylinder body thermosistor mounting hole on cylinder body 1
1-2, and cylinder body thermosistor mounting hole 1-2 the inners connect positioned at the inside guest of cylinder body 1 with cylinder block cooling water road 1-1 so that cylinder body is adjusted
Warm device 4 may be mounted to inside cylinder body 1, so that it is compact-sized, and ensure sealing.
In the present embodiment, cylinder body thermosistor 4 include cylinder body temperature adjustment component 4-1 and for stationary housing temperature adjustment component 4-1 simultaneously
It is installed on the inner mounting bracket 4-2 with cylinder block cooling water road 1-1 connectivity parts of cylinder body thermosistor mounting hole 1-2；Can be convenient
Installed after cylinder body thermosistor 4 is fixed in cylinder body thermosistor mounting hole 1-2.
In the present embodiment, mounting bracket 4-2 includes the end cap 4-2-1 that can be fixedly connected with cylinder body 1 and is connected with end cap 4-2-1
And cylinder body temperature adjustment component 4-1 can be fixed to the fixed body 4-2-2 for being stretched into and being set inside cylinder body thermosistor mounting hole；Wherein,
Bolt connecting hole 4-2-1-1 is provided with end cap 4-2-1, end cap 4-2-1 is supported only set on the surface of cylinder body, cylinder body after mounting
Thermosistor assembly installation position is equipped with, bolt or other existing connectors are bolted hole and end cap 4-2-1 are fixed on into cylinder body 1
On, fixed body 4-2-2 is used to fix temperature adjustment component, and then fixed body 4-2-2 is stretched into inside cylinder body 1, fixed body 4-2-2 and end
Lid 4-2-1 is formed in one structure, it is ensured that structural strength；In addition, the cylinder block cooling water inlet channel 1-3 of cylinder body 1 adjusts with cylinder body
Warm device mounting hole 1-2 is connected enters cylinder body thermosistor 4 for cooling water, and cylinder body thermosistor mounting hole 1-2 ends and cylinder body are cold
But water channel 1-1 is connected, and temperature adjustment component is used to control cylinder body thermosistor mounting hole 1-2 ends and cylinder block cooling water road 1-1 connectivity parts
Keying.
In the present embodiment, the clamping plate 4-2-2-1 that fixed body 4-2-2 is set by least two one-tenth clamp positions is formed, cylinder body
Temperature adjustment component 4-1 is formed to cylinder body temperature adjustment component 4-1 between clamping plate 4-2-2-1, between clamping plate 4-2-2-1 and radially clamped admittedly
It is fixed；Wherein, clamping plate 4-2-2-1 can set two, three or four along end cap 4-2-1 circumference, and temperature adjustment component is located at clamping plate 4-
Being formed and fixed between 2-2-1, clamping plate 4-2-2-1 can be flat board or arc, and the purpose of the present invention can be achieved, simple in construction,
But it is fixed reliable, and fixed body 4-2-2 overall weights can be reduced by clamping plate 4-2-2-1 structures, reach the mesh of engine loss of weight
, in the present embodiment, clamping plate 4-2-2-1 settings two are simultaneously radially symmetrical, have relatively stable fixed form, and be uniformly distributed
Each clamping plate 4-2-2-1 load ability.
In the present embodiment, cylinder body temperature adjustment component 4-1 passes through for limiting its limit vertically moved relative to clamping plate 4-2-2-1
Bit architecture is fixed on clamping plate 4-2-2-1, and position limiting structure is adjusted by the neck 4-2-2-2 that is set on clamping plate 4-2-2-1 and by cylinder body
Warm component 4-1 upper bracket 4-1-1 circumferential edge extends radially outward edge clipping 4-1- that is being formed and inserting neck 4-2-2-2
1-1 is formed；Edge clipping 4-1-1-1 is caught in be formed in each clamping plate 4-2-2-1 neck 4-2-2-2 and fixed so that 4-2-2-1 pairs of clamping plate
Temperature adjustment component, which is formed, radially to be clamped, and mounting means is simple and reliable, and is easily installed and dismantles, and can prevent the longitudinal direction of temperature adjustment component
With move radially, ensure mounting stability, and can reach prevent vibration purpose；In addition, neck 4-2-2-2 is arranged on each folder
Plate 4-2-2-1 terminal part, it is rectangular groove structure.
In the present embodiment, end cap 4-2-1 includes lid body 4-2-1-2 and is arranged at lid body 4-2-1-2 medial surfaces and is used in combination
The position boss structure 4-2-1-4 on the outside of the circular orientation portion 4-2-1-3 of the embedded formation of cylinder body 1 positioning, circular orientation portion；Annular is fixed
Position portion is used to be embedded in the inside of cylinder body 13 and matches to form location and installation with the pedestal that the inside of cylinder body 1 is set；
The 4-3 of sealing ring I for forming sealing between the inwall of cylinder body 1 is added at the boss structure in circular orientation portion；It is close
Seal I is located on the end face of boss structure and set around fixed body 4-2-2 circumference, after mounting bracket 4-2 is installed on cylinder body 1,
Sealing ring I forms sealing between the inwall of cylinder body 1 and fixed body 4-2-2；
Cylinder body temperature adjustment component 4-1 upper bracket 4-1-1 peripheries add the sealing for forming sealing between the inwall of cylinder body 1
Enclose II 4-4.
In addition, in external circulating system, control system also includes：Detection unit II 17, it is connected with the processing unit 14,
For detecting the enabling signal of engine；Electric control pump 13 is controlled to start working after processing unit 14 receives enabling signal.
In the present embodiment, the timing time T of timing circuit 16 is 6-8min；Preferably 6min, 7min, 8min.
In the present embodiment, cooling line includes cold in being used for the charge air cooler water inlet pipe 12 of the cooling water inlet of charge air cooler 11 and being used for
The charge air cooler return pipe 18 of the cooling water outlet of device 11, in addition to cool down the booster water inlet pipe 19 of water inlet for booster 10 and be used for
The booster return pipe 20 of the cooling water water outlet of booster 10, it is integrally formed to be provided with charge air cooler water inlet pipe 12 and enters for booster
The booster water inlet pipe of the water inlet end connection of water pipe 19 connects pipeline section 12-1, is provided with charge air cooler return pipe 18 for booster
The booster return pipe connection pipeline section 18-1 of the water side connection of return pipe 20；As illustrated, the both ends of charge air cooler water inlet pipe 12 point
Not Lian Tong the delivery port of water pump and the water inlet of charge air cooler 11, the both ends of charge air cooler return pipe 18 are respectively communicated with the water outlet of charge air cooler 11
The water inlet of mouth and water pump, the water inlet end of booster water inlet pipe 19 directly connects pipeline section 12-1 and connected with booster water inlet pipe to be used for
Water inlet, the water side of booster water inlet pipe 19 connect with the water inlet of booster 10, the water inlet end of booster return pipe 20 and increasing
The delivery port connection of depressor 10, the water side of booster return pipe 20 directly connect pipeline section 18-1 connections with booster return pipe and used
In water outlet, wherein, booster water inlet pipe connection pipeline section 12-1 connects pipeline section 18-1 with booster return pipe and corresponds one respectively
It is body formed on charge air cooler water inlet pipe 12 and charge air cooler return pipe 18, quick despatch can be achieved, and can have preferable sealing
Energy.
In the present embodiment, the current that automatic pressure intensifier return pipe connection pipeline section 18-1 enters charge air cooler return pipe 18 flow into direction
The center line for deviateing the junction of booster return pipe 20 is set；Automatic pressure intensifier return pipe connection pipeline section 18-1 enters charge air cooler backwater
The current of pipe 18 flow into direction along the tangential of junction booster return pipe 20；That is booster return pipe connection pipeline section 18-1 is with increasing
Depressor return pipe 20 is tangentially connected, may be such that the water for entering charge air cooler return pipe 18 from automatic pressure intensifier return pipe connection pipeline section 18-1
Stream tangentially into, will not with charge air cooler return pipe 18 in from charge air cooler 111 flow back cooling water stream formed collide, ensure flowing water
It is smooth.
In the present embodiment, booster water inlet pipe connection pipeline section 12-1 current approach axis and junction booster water inlet pipe
Current direction of advance is set into 60 ° of angles in 19；Ensure that water inlet is smooth.
In the present embodiment, charge air cooler water inlet pipe 12, charge air cooler return pipe 18, booster water inlet pipe 19 and booster return pipe
20 entirety are bend pipe structure, and bending place is to seamlessly transit structure；It is rational in infrastructure, it can be prevented while there is rational move towards
Interference between all parts.
In the present embodiment, the bend loss 12-2 that end tube section is -70 ° of angles at 45 ° of intaking of charge air cooler water inlet pipe 12, water outlet
End tube section is bend loss 12-3 in 90 °；Optimal, bend loss 2-1 is 45 °, 60 ° or 70 °.
In the present embodiment, the bend loss 18-2 that end tube section is -110 ° in 90 ° of intaking of charge air cooler return pipe 18, water side
Pipeline section is straight length 18-3；Optimal, bend loss is 90 °, 100 °, 110 °.
In the present embodiment, charge air cooler water inlet pipe 12, charge air cooler return pipe 18, booster water inlet pipe 19 and booster return pipe
20 be metal tube；Can be aluminum pipe or steel pipe.
Finally illustrate, the above embodiments are merely illustrative of the technical solutions of the present invention and it is unrestricted, although with reference to compared with
The present invention is described in detail good embodiment, it will be understood by those within the art that, can be to the skill of the present invention
Art scheme is modified or equivalent substitution, and without departing from the objective and scope of technical solution of the present invention, it all should cover at this
Among the right of invention.
Claims (5)
- A kind of 1. gasoline engine cooling system, it is characterised in that：Interior cyclic system including the cylinder body for gasoline engine and Cooling of Cylinder Head System and the booster for gasoline engine and the external circulating system of charge air cooler cooling；The internal circulation system includes gray iron, the water pump for providing cooling water for cylinder body and cylinder cap and can inner loop The radiator I that cooling water is radiated, the cooling water water side of the cylinder cap are provided with water-supplying chamber, the cylinder interior formed with Cylinder block cooling water road；Also include cylinder body thermosistor and cylinder cap thermosistor, the cylinder body thermosistor is arranged on cylinder block cooling water road Water inlet be used for control be opened and closed, the cylinder cap thermosistor be arranged on water-supplying chamber in for application cylider cover cooling water water side and The keying connection of engine, the cylinder cap thermosistor just open temperature and just open temperature higher than the cylinder body thermosistor；When cooling water temperature just opens temperature less than cylinder body thermosistor, cooling water is not cooled down to cylinder body to Cooling of Cylinder Head, and cooling water Water pump is returned to without radiator I；Between temperature is opened at the beginning of cooling water temperature just opens temperature and cylinder cap thermosistor between cylinder body thermosistor, cooling water is to cylinder body and cylinder Lid cools down, and now cooling water still returns to water pump without radiator I；When cooling water temperature just opens temperature higher than cylinder cap thermosistor, cooling water cools down to cylinder body and cylinder cap, and cooling water can be through Radiator I returns water pump；The external circulating system includes booster, charge air cooler, the electric control pump for providing cooling water and forms water circulation path Cooling line；The external circulating system also includes control system, the control system comprise at least processing unit and respectively with Connection detection unit I and timing circuit, the detection unit I is used to detect the misfire signals of engine, and the processing is single Member is used to receive the misfire signals and to timing circuit output control order, and the timing circuit is by triggering timing and based on When terminate backward processing unit output timing end signal；The electric control pump is connected with the processing unit, and the processing is single Control electric control pump is stopped after member receives timing end signal；The cylinder body sets the cylinder body thermosistor of oriented cylinder interior extension in the opening position of corresponding cylinder body cooling water channel water inlet Mounting hole, cylinder body thermosistor mounting hole the inner connect with cylinder block cooling water road, are additionally provided with the cylinder body and are pumped into for water pump Cooling water and the cylinder block cooling water inlet channel connected with cylinder body thermosistor mounting hole sidepiece；The cylinder body thermosistor is including cylinder body temperature adjustment component and for stationary housing temperature adjustment component and is installed on cylinder body temperature adjustment The inner mounting bracket with cylinder block cooling water road connectivity part of device mounting hole；The mounting bracket includes the end cap that can be fixedly connected with cylinder body and is connected and can fix cylinder body temperature adjustment component with end cap will It stretches into the fixed body set inside the thermosistor mounting hole；The clamping plate that the fixed body is set by least two one-tenth clamp positions is formed, the cylinder body temperature adjustment component be located at clamping plate it Between, cylinder body temperature adjustment component is formed between clamping plate and radially gripped；The cylinder body temperature adjustment component for limiting its position limiting structure vertically moved relative to clamping plate by being fixed on clamping plate, institute State position limiting structure and extend radially outward shape by the neck that is set on clamping plate and by the circumferential edge of the upper bracket of cylinder body temperature adjustment component Into and insert the neck edge clipping form；The cooling line includes being used for the charge air cooler water inlet pipe of charge air cooler cooling water inlet and in charge air cooler cooling water outlet Cooler return pipe, in addition to the booster water inlet pipe for booster cooling water inlet and the supercharging for booster cooling water water outlet Device return pipe, the booster for being provided with the water inlet end connection for booster water inlet pipe is integrally formed on the charge air cooler water inlet pipe Water inlet pipe connects pipeline section, and the booster that the water side connection for booster return pipe is provided with the charge air cooler return pipe returns Water pipe connects pipeline section.
- 2. gasoline engine cooling system according to claim 1, it is characterised in that：The water inlet of the Cooling of Cylinder Head water channel of the cylinder cap keeps cooling water to enter all the time；After cylinder body thermosistor is opened, cylinder cap is imported from after the delivery port outflow in cylinder block cooling water road to the cooling water of cylinder body cooling Cooling of Cylinder Head water channel in.
- 3. gasoline engine cooling system according to claim 1, it is characterised in that：The internal circulation system also includes heater and oil cooler；Before opening at the beginning of the cylinder cap thermosistor, the cooling water that is come out from the cooling water water side of cylinder cap all successively by heater and Oil cooler returns water pump；After opening at the beginning of the cylinder cap thermosistor, the cooling water section that is come out from the cooling water water side of cylinder cap successively by heater and Oil cooler returns water pump, and other part returns to water pump through radiator I；The warm wind for keeping often connecting with the water inlet end of the heater of engine is provided with water-supplying chamber and connects water outlet.
- 4. gasoline engine cooling system according to claim 1, it is characterised in that：End cap includes lid body and is arranged at lid originally Internal side is simultaneously used for the circular orientation portion for being embedded in cylinder body formation positioning, position boss structure on the outside of circular orientation portion；The sealing ring I for forming sealing between inboard wall of cylinder block is added at the boss structure in circular orientation portion；The upper bracket periphery of the cylinder body temperature adjustment component adds the sealing ring II for forming sealing between inboard wall of cylinder block.
- 5. gasoline engine cooling system according to claim 4, it is characterised in that：The cylinder cap thermosistor is just opened temperature and is higher than The value range that the cylinder body thermosistor just opens temperature is 20 DEG C -25 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510888205.2A CN105351064B (en) | 2015-12-04 | 2015-12-04 | Gasoline engine cooling system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510888205.2A CN105351064B (en) | 2015-12-04 | 2015-12-04 | Gasoline engine cooling system |
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| CN105351064A CN105351064A (en) | 2016-02-24 |
| CN105351064B true CN105351064B (en) | 2018-01-02 |
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| CN201510888205.2A Active CN105351064B (en) | 2015-12-04 | 2015-12-04 | Gasoline engine cooling system |
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| CN109060578B (en) * | 2018-09-06 | 2023-10-27 | 潍坊思博精工科技有限公司 | Thermal fatigue testing device for cylinder cover of diesel engine |
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| GB2313649B (en) * | 1996-05-28 | 2000-03-22 | Quinton Hazell Plc | Method and kits for removing and replacing thermostatic valve assemblies |
| 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 |
| CN204152626U (en) * | 2014-10-27 | 2015-02-11 | 哈尔滨东安汽车发动机制造有限公司 | Selection of heat sinks participates in two thermostat cooling systems of complete machine cooling |
| CN104500204A (en) * | 2014-12-10 | 2015-04-08 | 重庆小康工业集团股份有限公司 | Automobile engine cooling device |
| CN205154351U (en) * | 2015-12-04 | 2016-04-13 | 重庆小康工业集团股份有限公司 | Turbosupercharged engine cooling system |
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