CN207297138U - Heavy duty diesel engine high/low temperature cooling system - Google Patents
Heavy duty diesel engine high/low temperature cooling system Download PDFInfo
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- CN207297138U CN207297138U CN201721032522.5U CN201721032522U CN207297138U CN 207297138 U CN207297138 U CN 207297138U CN 201721032522 U CN201721032522 U CN 201721032522U CN 207297138 U CN207297138 U CN 207297138U
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- low
- temperature
- engine
- heat sink
- radiator
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
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Abstract
The utility model discloses heavy duty diesel engine high/low temperature cooling system, it includes turbocharger (1), engine (2), high temperature heat sink (3), fan (4), low-temperature radiator (5), exhaust gas circulating device (6), cold charge air cooler (7), a cool condenser (8) and selective catalytic reduction device (9)；The low-temperature radiator (5), high temperature heat sink (3), fan (4) are to be located at the rear of the turbocharger (1) positioned at the front of the engine (2), the selective catalytic reduction device (9)；Cold loop during the turbocharger (1) is connected and formed with a cold charge air cooler (7), engine (2) successively；It overcomes the shortcomings that thermic load for increasing radiator in the prior art, the advantages of having more extra coolers that cooling such as oil cooler etc can be integrated inside low-temperature circuit, reduce the complexity of arrangement.
Description
Technical field
The cooling system of heavy duty diesel engine is the utility model is related to, is more specifically heavy duty diesel engine
High/low temperature cooling system and cooling circuit.
Background technology
Traditional heavy truck front-end cooling module is made of condenser, radiator, charge air cooler and is installed on motor head, leads to
Cross the fan installed in refrigerating module rear end and carry out thermal convection current using air-cooled mode and the cooling medium inside each exchanger, from
And take away the heat of medium in heat exchanger.
Condenser is the building block of air-conditioning system, ensures refrigeration effect good in cockpit.Radiator is engine
The main building block of cooling system, its main function are to ensure that engine works at a suitable temperature, prevent engine mistake
Cold or overheat.
Charge air cooler is the important composition component of ICS intercooler system, its main function is reduced by compressed air after turbocharging
Temperature, the air for ensureing to have sufficient density are fully burnt into engine cylinder body with fuel oil, lift the fuel oil warp of engine
Ji property and dynamic property, while also reduce the carbon emission of engine.The fundamental diagram of engine-cooling system and ICS intercooler system is (such as
Fig. 1).
With the customer demand of efficient logistics and vehicle fuel economy, domestic major main engine plants are developing 500 horsepowers
Above high-powered engine is, it is necessary to which more high performance heat exchanger meets the work requirements of high-powered engine.It is at the same time
Meet the automobile emission regulation requirement in the 6th stage.In the draining technology using exhaust gas circulating device+selective catalytic reduction device
In the case of route, the heat of exhaust gas circulating device needs to be taken away by radiator, and the thermic load of radiator is increased in the case of this
(with reference to Fig. 2).At the same time with increasingly stringent and lifting fuel economy the demand of regulation, outlet temperature and the state five of charge air cooler
Discharge compared to require it is lower in cold outlet temperature, this also requires charge air cooler to have more preferable heat-sinking capability.
The content of the invention
The purpose of the utility model is to overcome the shortcoming of above-mentioned background technology, and propose heavy duty diesel engine height
Low-temperature cooling system.
The technical solution of the utility model is implemented by following measure：Heavy duty diesel engine high/low temperature cooling system
System, it include turbocharger, engine, high temperature heat sink, fan, low-temperature radiator, exhaust gas circulating device, it is cold in it is cold
Device, a cool condenser and selective catalytic reduction device；
The low-temperature radiator, high temperature heat sink, fan are positioned at the front of the engine, the selection
Property catalysis reductor be located at the rear of the turbocharger；
Cold loop during the turbocharger is connected and formed with a cold charge air cooler, engine successively.
The high temperature heat sink connects with the engine and forms High-temperature cooling circuit；
Exhaust gas circulating device is provided with the engine, cold charge air cooler is installed on the engine between described
On, the low-temperature radiator is connected with a cold charge air cooler and a cool condenser one end and forms coolant cooling circuit respectively.
In the above-mentioned technical solutions：Section is installed on pipeline between the high temperature heat sink and the engine
Warm device and high-temperature circuit water pump.
In the above-mentioned technical solutions：The low-temperature radiator and it is described between set on pipeline between cold charge air cooler
There is low-temperature circuit pump.
In the above-mentioned technical solutions：The low-temperature radiator, high temperature heat sink are installed on fan front；The low temperature
Radiator uses integral structure with the high temperature heat sink.
In the above-mentioned technical solutions：Thickness between the low-temperature radiator and the high temperature heat sink is 90-100
Centimetre.
In the above-mentioned technical solutions：The low-temperature radiator is consistent with the core area of the high temperature heat sink, and
The low-temperature radiator is united using the pipe band core architecture of 16 millimeters or 26 millimeters core thickness, the fan use automatically controlled silicone oil from
Clutch fan.
The utility model has following technological merit：1st, the thickness of front-end module is reduced, design is compacter, reduces mould
The windage of block, adds the air intake efficiency of heat exchanger, so that changing front-end cooling module preferably plays heat dissipation performance.Using
In the case of electric control silicone oil fan, it is possible to reduce the at a fully engaged time of fan, reduce the power consumption of engine, there are 1%
Oil-saving effect.
2nd, a cold charge air cooler is directly installed on engine body, and the impulse stroke of pressurized air shortens, air-cooled with tradition
Charge air cooler is compared, and can reduce charge air cooler internal resistance 50%.Add the intake efficiency of engine and improve engine power and combustion
Oily economy./ 3, by using the pressurized air type of cooling of water cooling, the pressurized air into motor intake manifold can be made
Reach lower temperature, be conducive to improve the abundant burning of fuel oil, and reduce the carbon emission of engine.
4th, coolant cooling circuit is the cooling system of an independent control, can be low by controlling in vehicle startup stage
Coolant rate in temperature loops reaches the effect of rapid warming-up, is conducive to SCR so as to quickly raise the delivery temperature of engine
Transfer efficiency.
5th, more extra coolers of cooling such as oil cooler etc can be integrated inside low-temperature circuit, reduce arrangement
Complexity.
Brief description of the drawings
Fig. 1 is the fundamental diagram of engine-cooling system and ICS intercooler system in the prior art.
Fig. 2 is the fundamental diagram of the engine-cooling system with exhaust gas circulating device and ICS intercooler system in the prior art.
Fig. 3 is the fundamental diagram of high/low temperature engine-cooling system and ICS intercooler system.
In figure：Turbocharger 1, engine 2, high temperature heat sink 3, fan 4, low-temperature radiator 5, exhaust gas circulating device 6,
Between cold charge air cooler 7, a cool condenser 8, selective catalytic reduction device 9, thermostat 10, low-temperature circuit pump 11, high-temperature circuit water pump
12。
Embodiment
Illustrate the performance of the utility model below in conjunction with the accompanying drawings, but they do not form the limit to the utility model
It is fixed, it is only for example.At the same time by illustrating the utility model the advantages of, will become clearer and be readily appreciated that.
With reference to shown in Fig. 1-3：Heavy duty diesel engine high/low temperature cooling system, it include turbocharger 1, engine 2,
High temperature heat sink 3, fan 4, low-temperature radiator 5, exhaust gas circulating device 6, a cold charge air cooler 7, a cool condenser 8 and selectivity are urged
Change reductor 9；
The low-temperature radiator 5, high temperature heat sink 3, fan 4 be positioned at the front of the engine 2, it is described
Selective catalytic reduction device 9 is located at the rear of the turbocharger 1；
Cold loop is (in such as Fig. 3 during the turbocharger 1 is connected and formed with a cold charge air cooler 7, engine 2 successively
It is real to draw arrow line)；
The high temperature heat sink 3 connects with the engine 2 and forms High-temperature cooling circuit (draws ripple in fact in such as Fig. 3
Unrestrained line)；
Exhaust gas circulating device 6 is provided with the engine 2, cold charge air cooler 7 is installed on the hair between described
In motivation 2, the low-temperature radiator 5 is connected with cold 8 one end of charge air cooler 7 and a cool condenser and forms low temperature cold respectively
But circuit (blurring dotted line in such as Fig. 3)；
Thermostat 10 is installed on the pipeline between the high temperature heat sink 3 and the engine 2 and high temperature returns
Road water pump 12.
The low-temperature radiator 5 and it is described between be provided with low-temperature circuit pump 11 on pipeline between cold charge air cooler 7.
The low-temperature radiator 5, high temperature heat sink 3 are installed on 4 front end of fan；The low-temperature radiator 5 with it is described
High temperature heat sink 3 use integral structure.
Thickness between the low-temperature radiator 5 and the high temperature heat sink 3 is 90-100 centimetres.
The low-temperature radiator 5 low-temperature radiator consistent and described with the core area of the high temperature heat sink 3
5 are united using the pipe band core architecture of 16 millimeters or 26 millimeters core thickness, and the fan 4 uses electric-controlled silicon oil clutch fan.
The utility model further includes a kind of cooling circuit：Heavy duty diesel engine high/low temperature cooling circuit, it includes as follows
Step；
1., the high-temperature gas that produces of the turbocharger 1 enter it is described between in cold charge air cooler 7, low temperature at this time
Cooling water in radiator 5 separately flows between a cold charge air cooler 7 neutralizes and carries out heat exchange respectively in cool condenser 8；
2., step 1. it is middle cooling complete high-temperature gas enter in engine 2 operate use, the engine 2
An exhaust gas part for generation is excluded via pipeline, and another part is drained into the exhaust gas circulating device 6 that top is set and re-enters into
Used in the engine 2；
3., the high temperature coolant in the high temperature heat sink 3 enter via high-temperature circuit water pump 12 in engine 2, supply
The engine 2 to run at high speed is cooled down to use；
4., after in step, 2. the middle low-temperature cooling water for completing cooling completes cooling, can heat up and respectively via cold in cold
Device 7 and the outflow of 8 other end of a cool condenser, re-enter into the fan 4 set again by lower section in the low-temperature radiator 5
Again cooling uses.
When external environment is too low；The high temperature heat sink 3 is stopped using, and the only described engine 2 carries out self-loopa
Cooling.
Above-mentioned unspecified part is the prior art.
Claims (6)
1. heavy duty diesel engine high/low temperature cooling system, it is characterised in that：It include turbocharger (1), engine (2),
High temperature heat sink (3), fan (4), low-temperature radiator (5), exhaust gas circulating device (6), cold charge air cooler (7), a cool condenser
(8) and selective catalytic reduction device (9)；
The low-temperature radiator (5), high temperature heat sink (3), fan (4) are positioned at the front of the engine (2), institute
The selective catalytic reduction device (9) stated is located at the rear of the turbocharger (1)；
Cold loop during the turbocharger (1) is connected and formed with a cold charge air cooler (7), engine (2) successively；
The high temperature heat sink (3) connects with the engine (2) and forms High-temperature cooling circuit；
Exhaust gas circulating device (6) is provided with the engine (2), cold charge air cooler (7) is installed on described between described
On engine (2), the low-temperature radiator (5) is connected simultaneously with a cold charge air cooler (7) and a cool condenser (8) one end respectively
Form coolant cooling circuit.
2. heavy duty diesel engine high/low temperature cooling system according to claim 1, it is characterised in that：In the high temperature
Thermostat (10) and high-temperature circuit water pump (12) are installed on the pipeline between radiator (3) and the engine (2).
3. heavy duty diesel engine high/low temperature cooling system according to claim 1 or 2, it is characterised in that：Described
Low-temperature radiator (5) and it is described between be provided with low-temperature circuit pump (11) on pipeline between cold charge air cooler (7).
4. heavy duty diesel engine high/low temperature cooling system according to claim 3, it is characterised in that：The low temperature dissipates
Hot device (5), high temperature heat sink (3) are installed on fan (4) front end；The low-temperature radiator (5) and the high temperature heat sink
(3) integral structure is used.
5. heavy duty diesel engine high/low temperature cooling system according to claim 4, it is characterised in that：The low temperature dissipates
Thickness between hot device (5) and the high temperature heat sink (3) is 90-100 centimetres.
6. heavy duty diesel engine high/low temperature cooling system according to claim 4, it is characterised in that：The low temperature dissipates
Hot device (5) low-temperature radiator (5) consistent and described with the core area of the high temperature heat sink (3) using 16 millimeters or
The pipe band core architecture of 26 millimeters of core thickness is united, and the fan (4) uses electric-controlled silicon oil clutch fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721032522.5U CN207297138U (en) | 2017-08-17 | 2017-08-17 | Heavy duty diesel engine high/low temperature cooling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721032522.5U CN207297138U (en) | 2017-08-17 | 2017-08-17 | Heavy duty diesel engine high/low temperature cooling system |
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| Publication Number | Publication Date |
|---|---|
| CN207297138U true CN207297138U (en) | 2018-05-01 |
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ID=62444698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721032522.5U Active CN207297138U (en) | 2017-08-17 | 2017-08-17 | Heavy duty diesel engine high/low temperature cooling system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110471513A (en) * | 2018-05-09 | 2019-11-19 | 浙江盾安人工环境股份有限公司 | A kind of heat sink assembly, air-cooled radiator and air-conditioning equipment |
-
2017
- 2017-08-17 CN CN201721032522.5U patent/CN207297138U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110471513A (en) * | 2018-05-09 | 2019-11-19 | 浙江盾安人工环境股份有限公司 | A kind of heat sink assembly, air-cooled radiator and air-conditioning equipment |
| CN110471513B (en) * | 2018-05-09 | 2022-03-08 | 浙江盾安人工环境股份有限公司 | Radiator assembly, air-cooled radiator and air conditioning equipment |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 430056 Maple Five Road, Wuhan Economic and Technological Development Zone, Wuhan City, Hubei Province Patentee after: Dongfeng Malerje Systems Co., Ltd. Address before: 430056 Maple Five Road, Wuhan Economic and Technological Development Zone, Wuhan City, Hubei Province Patentee before: Dongfeng Behr Thermal Systems Co., Ltd. |
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| CP01 | Change in the name or title of a patent holder |