CN205477879U - Engine intelligent cooling system based on reverse cooling - Google Patents
Engine intelligent cooling system based on reverse cooling Download PDFInfo
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- CN205477879U CN205477879U CN201620221993.XU CN201620221993U CN205477879U CN 205477879 U CN205477879 U CN 205477879U CN 201620221993 U CN201620221993 U CN 201620221993U CN 205477879 U CN205477879 U CN 205477879U
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Abstract
The utility model discloses an engine intelligent cooling system based on reverse cooling, cooling system include: complete machine water jacket, electronically controlled water pump, electronic thermostat, automatically controlled fan, radiator, expansion tank, temperature sensor, motor and ecu. In system's working process, in electronically controlled water pump went into coolant pump the engine, the coolant liquid got into from the cylinder cover water sleeve top, to flowing down on follow, flowed into the organism water jacket behind the first cooling cylinder lid, the back outflow of cooling cylinder cover, the distribution gets into coolant flow big, the tiny loop to electronic thermostat according to house steward coolant temperature, and coolant liquid pump after the circulation is gone into the engine built -in and is cooled off. The utility model discloses can reduce cylinder cap coolant temperature and improve cylinder liner coolant temperature, improve cylinder cover water sleeve heat exchange coefficient simultaneously to this hot state that improves cylinder cap and cylinder liner.
Description
Technical field
This utility model relates to engine intelligent cooling field, particularly relates to a kind of engine intelligent cooling system based on reversely cooling.
Background technology
Along with the continuous lifting of explosion pressure in diesel engine power density and cylinder, the heated component thermic load including cylinder cap, cylinder sleeve etc. constantly increases, and its thermal failure case the most gradually increases, and the direction that diesel energy-saving reduces discharging simultaneously is trend of the times.So the development of diesel engine is proposed tightened up requirement to its reliability, fuel consumption and emission performance, therefore cooling system should provide enough intensity of cooling to ensure its thermal reliability for high thermal load regions, the cooling flow in the region that the thermic load district of minimizing simultaneously is relatively low, to avoid the waste of intensity of cooling, improves its fuel economy with this.
And in traditional cooling system, coolant enters cylinder cover water jacket cooling cylinder cap by upper water hole after being introduced into body water jacket cooling cylinder sleeve, and owing to cylinder cap thermic load relatively cylinder sleeve is high, coolant cools down cylinder cap after first cooling down cylinder sleeve again, cylinder cover water jacket coolant temperature certainly will be caused higher than cylinder sleeve water jacket coolant temperature, therefore can cause that Cooling of Cylinder Head is not enough, the situation of cylinder sleeve undercooling, this is also detrimental to the Reasonable Regulation And Control of cylinder cap, cylinder sleeve intensity of cooling.
Therefore, use reverse cooling technology so that coolant cools down cylinder sleeve after first cooling down cylinder cap again, so that Cooling of Cylinder Head liquid temp is less than cylinder sleeve coolant temperature, improve the intensity of cooling coupling between cylinder cap and cylinder sleeve；Meanwhile, using reversely cooling, coolant directly washes away cylinder cap firepower plate upper surface, can improve key area intensity of cooling, reduces cylinder head plate fire power face thermal stress, improves heated component thermal reliability.So, proposing a kind of Intelligence Cooling System based on reverse cooling technology is of great advantage to the lifting of the properties of electromotor.
Summary of the invention
The purpose of this utility model is to propose a kind of engine intelligent cooling system based on reversely cooling and control method.
The technical solution of the utility model is as follows:
A kind of engine intelligent cooling system based on reversely cooling includes electric control pump, electric-controlled thermostat, electrical control electric fan, expansion tank, complete machine water jacket, temperature sensor, the first motor, the second motor and electronic control unit；
Described electric control pump is arranged in cylinder cover water jacket front end, and is installed on engine body；Described cylinder cover water jacket is connected by drainage hole with body water jacket；Body water jacket rear end is furnished with electric-controlled thermostat, electric-controlled thermostat is installed on engine body, first outlet of electric-controlled thermostat is directly connected to electric control pump by pipeline, second outlet is divided into two coolant ducts, one coolant duct connects electric control pump through radiator, another coolant duct connects electric control pump after expansion tank, electrical control electric fan is for providing forced-convection heat transfer to radiator, first motor drives electrical control electric fan, second motor drives electric control pump, cooling-water temperature sensor is arranged on engine water jacket outlet, electronic control unit and all of temperature sensor, electric-controlled thermostat is connected with motor.
In cylinder cover water jacket and body water jacket, coolant flow direction is from top to bottom.Engine water jacket entrance is arranged on cylinder cap, and outlet is arranged on body.Before described cooling-water temperature sensor is arranged on electric-controlled thermostat.
This utility model has the advantage that
1. in this cooling system in engine water jacket coolant for flow from top to bottom so that Cooling of Cylinder Head liquid temp be less than cylinder sleeve coolant temperature, can improve between cylinder cap and cylinder sleeve intensity of cooling coupling.
2. in this cooling system in engine water jacket coolant for flow from top to bottom so that coolant directly washes away cylinder cap firepower plate upper surface, can improve key area intensity of cooling, reduces thermal stress, improves heated component thermal reliability.
Accompanying drawing explanation
Fig. 1 is Intelligence Cooling System schematic diagram based on split cooling with reversely cooling；
Fig. 2 is cylinder cover water jacket and cylinder sleeve water jacket internal coolant flow schematic diagram.
Detailed description of the invention
Below in conjunction with the accompanying drawings this utility model is described in further detail, but not as to restriction of the present utility model.
This cooling system model mainly includes the outer cooling system adnexa electric control pump of machine inner cooling water set, machine, electrical control electric fan, electric-controlled thermostat, expansion tank and electronic control part ECU, temperature sensor
As it is shown in figure 1, a kind of engine intelligent cooling system based on reversely cooling, it is characterised in that include electric control pump, electric-controlled thermostat, electrical control electric fan, expansion tank, complete machine water jacket, temperature sensor, the first motor, the second motor and electronic control unit.
Described electric control pump 1 is arranged in cylinder cover water jacket 4 front end, and is installed on engine body 3；Described cylinder cover water jacket 4 is connected by drainage hole with body water jacket 5；Body water jacket rear end is furnished with electric-controlled thermostat 6, electric-controlled thermostat 6 is installed on engine body 3, first outlet of electric-controlled thermostat 6 is directly connected to electric control pump 1 by pipeline, second outlet is divided into two coolant ducts, one coolant duct connects electric control pump 1 through radiator 7, another coolant duct connects electric control pump 1 after expansion tank 12, electrical control electric fan 8 is for providing forced-convection heat transfer to radiator 7, first motor 9 drives electrical control electric fan 8, second motor 10 drives electric control pump 1, cooling-water temperature sensor 11 is arranged on engine water jacket outlet, electronic control unit and all of temperature sensor, electric-controlled thermostat is connected with motor.
In cylinder cover water jacket 4 and body water jacket 5, coolant flow direction is from top to bottom.Engine water jacket entrance is arranged on cylinder cap 2, and outlet is arranged on body 3.Before described cooling-water temperature sensor 11 is arranged on electric-controlled thermostat 6.
The invention also discloses the cooling flow match control method of a kind of described engine intelligent cooling system:
In working process of diesel engine, second motor 10 drives cooling water pump 1 that coolant pumps into coolant flow channel in machine, enter in cylinder cover water jacket 4 by being arranged in the coolant water jacket entrance of cylinder cap 2, flowed into the engine body water jacket 5 being arranged in body 3 the most from top to bottom by drainage hole after cooling cylinder cap 2, flow out from outlet after cooling body 3, the aperture of the water temperature data regulation electric-controlled thermostat 6 that electronic control unit collects according to cooling-water temperature sensor 11, thus distribute into the first outlet and the coolant rate size of the second outlet, the coolant entering the first outlet is directly entered electric control pump 1, form partial circulating；And enter the coolant of the second outlet by radiator 7, the electronic fan 8 driven by the first motor 9 provides forced water-sky heat convection for it, after reducing coolant temperature, coolant enters automatically controlled cooling water pump 1, forming systemic circulation, in the process, water temperature signal that electronic control unit provides according to electric-controlled thermostat 6 and engine speed and load signal regulate the rotating speed of motor, thus control electronic fan 8 and the rotating speed of electronic water pump 1
Along with the water temperature signal of cooling-water temperature sensor 11 raises, electronic control unit controls electric-controlled thermostat second and exports aperture, and the coolant rate entering coolant systemic circulation increases, and coolant bulk temperature declines；Electronic control unit controls to improve the first motor and the second motor speed by MAP simultaneously, thus strengthens fan cooling amount and coolant rate.
Cause hydraulic pressure too high when the second exit water temperature of the second electric-controlled thermostat 6 is too high, and during higher than expansion tank 12 hydraulic pressure, coolant automatically flows into expansion tank 12 and carries out water storage；When electric control pump 1 inlet water pressure is less than expansion tank 12 hydraulic pressure, coolant automatically flows out expansion tank 12 and flows into electric control pump 1 and carry out moisturizing.
As shown in Figure 2, in Intelligence Cooling System work process, cooling-water temperature sensor 11 records engine water jacket exit water temperature, and signal is transferred to electronic control unit, electronic control unit controls the aperture of electronic thermostat 6 according to MAP, and regulation enters the coolant rate of large and small circulation；Electronic control unit is according to outfall sewer coolant temperature signal, engine rotational speed signal and load signal simultaneously, control the first motor 9 rotating speed according to MAP and control the intensity of cooling of cooling fan, and control the second motor 10 rotating speed thus control electric control pump and then regulation and control enter cylinder cover water jacket and the coolant total flow of body water jacket.
Claims (4)
1. an engine intelligent cooling system based on reversely cooling, it is characterised in that include electric control pump, electric-controlled thermostat, electrical control electric fan, expansion tank, complete machine water jacket, temperature sensor, the first motor, the second motor and electronic control unit；
Described electric control pump (1) is arranged in cylinder cover water jacket (4) front end, and is installed on engine body (3)；Described cylinder cover water jacket (4) is connected by drainage hole with body water jacket (5)；Body water jacket rear end is furnished with electric-controlled thermostat (6), electric-controlled thermostat (6) is installed on engine body (3), first outlet of electric-controlled thermostat (6) is directly connected to electric control pump (1) by pipeline, second outlet is divided into two coolant ducts, one coolant duct connects electric control pump (1) through radiator (7), another coolant duct connects electric control pump (1) after expansion tank (12), electrical control electric fan (8) is for providing forced-convection heat transfer to radiator (7), first motor (9) drives electrical control electric fan (8), second motor (10) drives electric control pump (1), cooling-water temperature sensor (11) is arranged on engine water jacket outlet, electronic control unit and all of temperature sensor, electric-controlled thermostat is connected with motor.
Engine intelligent cooling system based on reversely cooling the most according to claim 1, it is characterised in that in cylinder cover water jacket (4) and body water jacket (5), coolant flow direction is from top to bottom.
Engine intelligent cooling system based on reversely cooling the most according to claim 2, it is characterised in that engine water jacket entrance is arranged on cylinder cap (2), and outlet is arranged on body (3).
Engine intelligent cooling system based on reversely cooling the most according to claim 3, it is characterised in that it is front that described cooling-water temperature sensor (11) is arranged on electric-controlled thermostat (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620221993.XU CN205477879U (en) | 2016-03-22 | 2016-03-22 | Engine intelligent cooling system based on reverse cooling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620221993.XU CN205477879U (en) | 2016-03-22 | 2016-03-22 | Engine intelligent cooling system based on reverse cooling |
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| Publication Number | Publication Date |
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| CN205477879U true CN205477879U (en) | 2016-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620221993.XU Active CN205477879U (en) | 2016-03-22 | 2016-03-22 | Engine intelligent cooling system based on reverse cooling |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105649748A (en) * | 2016-03-22 | 2016-06-08 | 浙江大学 | Intelligent engine cooling system based on reverse cooling and control method |
| CN109162798A (en) * | 2018-10-10 | 2019-01-08 | 山东赛马力发电设备有限公司 | A kind of generating set cistern fan intelligent control system |
-
2016
- 2016-03-22 CN CN201620221993.XU patent/CN205477879U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105649748A (en) * | 2016-03-22 | 2016-06-08 | 浙江大学 | Intelligent engine cooling system based on reverse cooling and control method |
| CN109162798A (en) * | 2018-10-10 | 2019-01-08 | 山东赛马力发电设备有限公司 | A kind of generating set cistern fan intelligent control system |
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