CN105781666A - Heat-exchange type low-pressure exhaust recirculating system - Google Patents
Heat-exchange type low-pressure exhaust recirculating system Download PDFInfo
- Publication number
- CN105781666A CN105781666A CN201610112580.2A CN201610112580A CN105781666A CN 105781666 A CN105781666 A CN 105781666A CN 201610112580 A CN201610112580 A CN 201610112580A CN 105781666 A CN105781666 A CN 105781666A
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- China
- Prior art keywords
- pipe
- heat exchanger
- coolant
- fairlead
- electromagnetic valve
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M5/00—Heating, cooling, or controlling temperature of lubricant; Lubrication means facilitating engine starting
- F01M5/001—Heating
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
- F01M11/0004—Oilsumps
- F01M2011/0025—Oilsumps with heat exchangers
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Abstract
The invention discloses a heat-exchange type low-pressure exhaust recirculating system in the technical field of internal combustion engines. The heat-exchange type low-pressure exhaust recirculating system comprises an engine, a gas inflow and exhaust system, a cooling liquid guide-out pipe, a cooling liquid guide-back pipe, a heat exchanger, an electromagnetic valve, an exhaust guide-out pipe and an exhaust recirculating pipe; a water inlet of the cooling liquid guide-out pipe and a water outlet of the cooling liquid guide-back pipe are both connected with an engine cooling system; the heat exchanger is arranged in an oil pan; a water outlet of the cooling liquid guide-out pipe and a water inlet of the cooling liquid guide-back pipe are both connected with the heat exchanger after penetrating a shell of the oil pan; the electromagnetic valve is connected with an engine electronic control unit; and the exhaust guide-out pipe and an exhaust guide-back pipe are both connected with the heat exchanger. When the engine runs under the idle speed or small load work condition, cooling liquid can fast raise the temperature of engine oil in the oil pan, and meanwhile exhaust recirculating can be achieved. The system is reasonable in design, simple in structure and suitable for a fast heating system for the engine oil of the oil pan.
Description
Technical field
The present invention relates to the heat-exchange device of a kind of technical field of internal combustion engines, particularly a kind of heat exchange type low pressure exhaust recirculating system making oil sump machine oil quickly heat.
Background technology
In the running of internal combustion engine, machine oil is requisite.Machine oil has cooling, lubrication, cleaning, seals four big functions, and it plays vital effect for ensureing that electromotor works normally.Electromotor in the running, if some friction positions can not get suitable lubrication, will produce dry friction.It was verified that the heat that dry friction produces at short notice is enough to make metal molten, the damage that causes parts even stuck (many leak or the fault such as scuffing of cylinder bore, axle suspension bush occurs in the automobile of leakage of oil, main cause is that this).Therefore good lubrication must be given to the friction position in electromotor.When after lubricating oil stream to friction position, one layer of oil film of formation on friction surface will be sticked to, reduce the resistance between friction parts, and oil film strength and toughness are the keys playing its lubrication.The heat that fuel produces after burning in electromotor, only sub-fraction is for the driving of power output and frictional resistance consumption and auxiliary body, and all the other major part heats, except being discharged to air China and foreign countries with waste gas, also can be taken away a part by the cooling medium in electromotor.Heat unnecessary in electromotor must discharge body, and otherwise electromotor can be too high and burn out due to temperature.This completes by engine-cooling system on the one hand, takes to oil sump by lubricating oil on the other hand and distribute after the Surface absorption heats such as cylinder, piston, bent axle.
When electromotor runs at the Smaller load such as idling, warming-up, the oil temperature in oil sump is relatively low, and lubricant effect is bad, thus causing the moving component frictional resistance of electromotor relatively big, oil consumption is higher.In the prior art, but without ripe, energy-conservation oil sump machine oil automotive quick-heat system.
Summary of the invention
The present invention is directed to above-mentioned the deficiencies in the prior art, it is provided that a kind of heat exchange type low pressure exhaust recirculating system, it is possible to make oil sump machine oil quickly heat.
nullThe present invention is achieved through the following technical solutions，Cylinder cap of the present invention、Cylinder body、Oil sump、Air inlet pipe、Exhaustor、Air filter、Compressor、Charge air cooler、Air throttle、Turbine、Catalysis bag、Deafener、Coolant fairlead、Coolant leads back pipe、Heat exchanger、First electromagnetic valve、Aerofluxus fairlead、Exhaust gas recirculatioon pipe、Second electromagnetic valve，Cylinder cap、Cylinder body、Oil sump forms the body of electromotor together，The gas outlet of air inlet pipe is connected with the air intake duct on cylinder cap，The air inlet of exhaustor is connected with the exhaust duct on cylinder cap，Air filter、Compressor、Charge air cooler、Air throttle is sequentially arranged in air inlet pipe，Turbine、Catalysis bag、Deafener is sequentially arranged on exhaustor，The water inlet of coolant fairlead、Coolant leads back the outlet of pipe and is all connected with engine-cooling system，Heat exchanger is arranged in oil sump 3，The outlet of coolant fairlead、Coolant leads back after the water inlet of pipe both passes through oil sump housing and is connected with heat exchanger，First electromagnetic valve is arranged on coolant fairlead，First electromagnetic valve、Second electromagnetic valve is all connected with engine electronic control unit，The air inlet of aerofluxus fairlead and catalysis bag、Exhaustor between deafener is connected，The gas outlet of exhaust gas recirculatioon pipe and air filter、Air inlet pipe between compressor is connected，The gas outlet of aerofluxus fairlead、Exhaust gas recirculatioon pipe air inlet is connected with heat exchanger after both passing through oil sump housing，Second electromagnetic valve is arranged on exhaust gas recirculatioon pipe.
Further, in the present invention, coolant fairlead, coolant lead back the outside of pipe and all wrap up insulation material, and heat exchanger is facial heat exchanger, and heat exchanger is immersed in machine oil.
Compared with prior art, the present invention have the advantages that into: the present invention is reasonable in design, simple in construction, and oil sump machine oil can quickly heat；At small load condition, engine friction is less, and oil consumption is relatively low.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the structure schematic diagram of oil sump in the present invention；
Wherein: 1, cylinder cap, 2, cylinder body, 3, oil sump, 4, air inlet pipe, 5, exhaustor, 6, air filter, 7, compressor, 8, charge air cooler, 9, air throttle, 10, turbine, 11, catalysis bag, 12, deafener, 13, coolant fairlead, 14, coolant leads back pipe, and 15, heat exchanger, the 16, first electromagnetic valve, 17, aerofluxus fairlead, 18, exhaust gas recirculatioon pipe, the 19, second electromagnetic valve.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiments of the invention being elaborated, the present embodiment, premised on technical solution of the present invention, gives detailed embodiment and concrete operating process, but protection scope of the present invention is not limited to following embodiment.
Embodiment
nullSuch as Fig. 1、Shown in Fig. 2，The present invention includes cylinder cap 1、Cylinder body 2、Oil sump 3、Air inlet pipe 4、Exhaustor 5、Air filter 6、Compressor 7、Charge air cooler 8、Air throttle 9、Turbine 10、Catalysis bag 11、Deafener 12、Coolant fairlead 13、Coolant leads back pipe 14、Heat exchanger 15、First electromagnetic valve 16、Aerofluxus fairlead 17、Exhaust gas recirculatioon pipe 18、Second electromagnetic valve 19，Cylinder cap 1、Cylinder body 2、Oil sump 3 forms the body of electromotor together，The gas outlet of air inlet pipe 4 is connected with the air intake duct on cylinder cap 1，The air inlet of exhaustor 5 is connected with the exhaust duct on cylinder cap 1，Air filter 6、Compressor 7、Charge air cooler 8、Air throttle 9 is sequentially arranged in air inlet pipe 4，Turbine 10、Catalysis bag 11、Deafener 12 is sequentially arranged on exhaustor 5，The water inlet of coolant fairlead 13、Coolant leads back the outlet of pipe 14 and is all connected with engine-cooling system，Heat exchanger 15 is arranged in oil sump 3，The outlet of coolant fairlead 13、Coolant leads back after the water inlet of pipe 14 both passes through oil sump 3 housing and is connected with heat exchanger 15，First electromagnetic valve 16 is arranged on coolant fairlead 13，First electromagnetic valve 16、Second electromagnetic valve 19 is all connected with engine electronic control unit，The air inlet of aerofluxus fairlead 17 and catalysis bag 11、Exhaustor 5 between deafener 12 is connected，The gas outlet of exhaust gas recirculatioon pipe 18 and air filter 6、Air inlet pipe 4 between compressor 7 is connected，The gas outlet of aerofluxus fairlead 17、Exhaust gas recirculatioon pipe 18 air inlet is connected with heat exchanger 15 after both passing through oil sump 3 housing，Second electromagnetic valve 19 is arranged on exhaust gas recirculatioon pipe 18；Coolant fairlead 13, coolant lead back the outside of pipe 14 and all wrap up insulation material, and heat exchanger 15 is facial heat exchanger, and heat exchanger 15 is immersed in machine oil.
In the implementation process of the present invention, when electromotor runs at the small load condition such as idling, warming-up, particularly in cold winter, engine electronic control unit just can control the first electromagnetic valve 16 and open, part coolant is made to flow through from heat exchanger 15, so that the machine oil in oil sump 3 can quickly heat, reduce the friction loss of each mechanical part of electromotor, reduce the oil consumption of electromotor.When running in the operating mode needing exhaust gas recirculatioon, electronic control unit opens the second electromagnetic valve 19, realize exhaust gas recirculatioon at the same time it can also be utilize exhaust heat to carry out the coolant in heating heat exchanger 15, the hot engine oil in rapid refueling drain pan 3 more further.
Claims (2)
- null1. a heat exchange type low pressure exhaust recirculating system，Including cylinder cap (1)、Cylinder body (2)、Oil sump (3)、Air inlet pipe (4)、Exhaustor (5)、Air filter (6)、Compressor (7)、Charge air cooler (8)、Air throttle (9)、Turbine (10)、Catalysis bag (11)、Deafener (12)，Cylinder cap (1)、Cylinder body (2)、Oil sump (3) forms the body of electromotor together，The gas outlet of air inlet pipe (4) is connected with the air intake duct on cylinder cap (1)，The air inlet of exhaustor (5) is connected with the exhaust duct on cylinder cap (1)，Air filter (6)、Compressor (7)、Charge air cooler (8)、Air throttle (9) is sequentially arranged in air inlet pipe (4)，Turbine (10)、Catalysis bag (11)、Deafener (12) is sequentially arranged on exhaustor (5)，It is characterized in that，Also include coolant fairlead (13)、Coolant leads back pipe (14)、Heat exchanger (15)、First electromagnetic valve (16)、Aerofluxus fairlead (17)、Exhaust gas recirculatioon pipe (18)、Second electromagnetic valve (19)，The water inlet of coolant fairlead (13)、Coolant leads back the outlet of pipe (14) and is all connected with engine-cooling system，Heat exchanger (15) is arranged in oil sump (3)，The outlet of coolant fairlead (13)、Coolant leads back after the water inlet of pipe (14) both passes through oil sump (3) housing and is connected with heat exchanger (15)，First electromagnetic valve (16) is arranged on coolant fairlead (13)，First electromagnetic valve (16)、Second electromagnetic valve (19) is all connected with engine electronic control unit，The air inlet of aerofluxus fairlead (17) and catalysis bag (11)、Exhaustor (5) between deafener (12) is connected，The gas outlet of exhaust gas recirculatioon pipe (18) and air filter (6)、Air inlet pipe (4) between compressor (7) is connected，The gas outlet of aerofluxus fairlead (17)、Exhaust gas recirculatioon pipe (18) air inlet is connected with heat exchanger (15) after both passing through oil sump (3) housing，Second electromagnetic valve (19) is arranged on exhaust gas recirculatioon pipe (18).
- 2. heat exchange type low pressure exhaust recirculating system according to claim 1, it is characterized in that insulation material is all wrapped up in the outside leading back pipe (14) in coolant fairlead (13), coolant, heat exchanger (15) is facial heat exchanger, and heat exchanger (15) is immersed in machine oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610112580.2A CN105781666A (en) | 2016-02-29 | 2016-02-29 | Heat-exchange type low-pressure exhaust recirculating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610112580.2A CN105781666A (en) | 2016-02-29 | 2016-02-29 | Heat-exchange type low-pressure exhaust recirculating system |
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| Publication Number | Publication Date |
|---|---|
| CN105781666A true CN105781666A (en) | 2016-07-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610112580.2A Pending CN105781666A (en) | 2016-02-29 | 2016-02-29 | Heat-exchange type low-pressure exhaust recirculating system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106703931A (en) * | 2017-01-03 | 2017-05-24 | 浙江吉利控股集团有限公司 | Heating system for engine oil |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102213159A (en) * | 2010-04-02 | 2011-10-12 | 福特环球技术公司 | Internal and external LP EGR for boosted engines |
| EP2009256B1 (en) * | 2007-06-29 | 2014-01-15 | Volkswagen Aktiengesellschaft | System and method for heating at least one operating fuel of a combustion engine |
| KR101363970B1 (en) * | 2012-10-08 | 2014-02-19 | (주)테너지 | Engine oil heating system |
| CN203939549U (en) * | 2014-05-30 | 2014-11-12 | 长城汽车股份有限公司 | The controllable heater of oil sump inner engine oil |
| CN104564436A (en) * | 2014-11-22 | 2015-04-29 | 白子榆 | Exhaust gas recycle utilization system |
-
2016
- 2016-02-29 CN CN201610112580.2A patent/CN105781666A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2009256B1 (en) * | 2007-06-29 | 2014-01-15 | Volkswagen Aktiengesellschaft | System and method for heating at least one operating fuel of a combustion engine |
| CN102213159A (en) * | 2010-04-02 | 2011-10-12 | 福特环球技术公司 | Internal and external LP EGR for boosted engines |
| KR101363970B1 (en) * | 2012-10-08 | 2014-02-19 | (주)테너지 | Engine oil heating system |
| CN203939549U (en) * | 2014-05-30 | 2014-11-12 | 长城汽车股份有限公司 | The controllable heater of oil sump inner engine oil |
| CN104564436A (en) * | 2014-11-22 | 2015-04-29 | 白子榆 | Exhaust gas recycle utilization system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106703931A (en) * | 2017-01-03 | 2017-05-24 | 浙江吉利控股集团有限公司 | Heating system for engine oil |
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Application publication date: 20160720 |
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