CN204024789U - Engine-cooling system and there is its automobile - Google Patents
Engine-cooling system and there is its automobile Download PDFInfo
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- CN204024789U CN204024789U CN201420382498.8U CN201420382498U CN204024789U CN 204024789 U CN204024789 U CN 204024789U CN 201420382498 U CN201420382498 U CN 201420382498U CN 204024789 U CN204024789 U CN 204024789U
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- engine
- branch road
- cooling system
- water pump
- electronic thermostat
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Abstract
The utility model discloses a kind of engine-cooling system, it comprises: engine cooling portion, for make cooling liquid pass through wherein to flow and with motor heat exchange; Engine water outlet, is connected to the outlet of described engine cooling portion; Switch water pump, is connected to the entrance of described engine cooling portion, and it can control by start and stop the coolant rate of the described engine cooling portion that flows through; The first branch road, is communicated with described engine water outlet and described switch water pump; Described the first branch road comprises sink and the electronic thermostat being arranged in wherein, and described electronic thermostat can be controlled by start and stop the break-make of described the first branch road.The utility model also comprises a kind of automobile with this engine-cooling system.
Description
Technical field
The utility model relates to automotive field, and more specifically, the utility model relates to the engine-cooling system of automobile.
Background technique
The engine-cooling system of automobile all plays important effect to normal working of engine, safety traffic and reduction oil consumption with discharge.At present, along with engine structure designs more compactness and power per liter increase, the used heat density that motor produces also obviously increases thereupon, therefore, and for the also constantly increase of requirement of engine-cooling system.Radiating requirements when conventionally, first the design of the heat dissipation potential of engine-cooling system should be considered to meet high engine load.
But in fact, motor is not to need to be at any time cooled, and motor required cooling degree under different operating modes is different, as:
(1) when engine warm-up, the temperature that improves cooling liquid can shorten warm-up period, thereby reduces oil consumption and discharge;
(2), when motor is during with operation at part load, the temperature that the improves cooling liquid oil temperature that can raise on the one hand, reduces frictional loss; Also contribute to improve on the other hand in-cylinder combustion, reduce radiation loss simultaneously, also reach the effect that strengthens power character and reduce oil consumption;
(3), when motor is to load greatly or limited conditions when operation, reduce coolant temperature and can guarantee that engine health moves reliably.
But the design standard of present engine cooling system is the heat dissipation problem while solving motor with large load operation, and ignore fuel economy and the emission problem of engine warm-up when with operation at part load.Tracing it to its cause, is because present engine cooling system belongs to passive regulating system, and its two large vital part (traditional water pump and traditional thermostat) self exists defect that cannot active adjustment.
Particularly, tradition water pump is by belt or chain-drive machinery water pump, its rotating speed is proportional to engine speed, this causes the coolant rate in engine-cooling system to depend on engine speed, but not therefore the actual radiating requirements of motor cannot realize the coolant temperature to motor in whole service operating mode and rationally control.In addition, traditional thermostat relies on paraffin in wax bag at the state of high low temperature, to be out of shape the switching of the valve that promotes to be controlled by push rod conventionally, thereby realizes the switching in engine-cooling system large and small cycles.Tradition thermostat is also the heat radiation requirement while mating motor with high speed large load operation, 90 ℃ of engine export cooling liquids, just starts to open below major cycle, and coolant temperature when this causes motor with operation at part load is too low.If the coolant temperature when improving simply the switching temperature (improve traditional thermostat and just open temperature) of large and small cycles and improving motor with operation at part load, can cause again when motor is during with high load running, major cycle cannot be opened in time, and this will bring the problem of engine operation safety and reliability.
Summary of the invention
The automobile that the purpose of this utility model is to provide a kind of engine-cooling system and has it, to realize the adjusting as required to engine cooling.
According to an aspect of the present utility model, a kind of engine-cooling system is provided, it comprises: engine cooling portion, for make cooling liquid pass through wherein to flow and with motor heat exchange; Engine water outlet, is connected to the outlet of described engine cooling portion; Switch water pump, is connected to the entrance of described engine cooling portion, and it can control by start and stop the coolant rate of the described engine cooling portion that flows through; The first branch road, is communicated with described engine water outlet and described switch water pump; Described the first branch road comprises sink and the electronic thermostat being arranged in wherein, and described electronic thermostat can be controlled by start and stop the break-make of described the first branch road.
Alternatively, it also comprises: ECU, be electrically connected to respectively described switch water pump and described electronic thermostat, and it is for controlling respectively the start and stop of described switch water pump and/or described electronic thermostat.
Alternatively, described electronic thermostat is arranged in the downstream of described sink on described the first branch road.
Alternatively, it also comprises: the first temperature transducer, is arranged in described the first branch road, for detecting its coolant temperature of flowing through.
Alternatively, described the first temperature transducer is arranged in the downstream of described electronic thermostat.
Alternatively, it also comprises: the second temperature transducer, is arranged between the outlet and described engine water outlet of described engine cooling portion, for detecting its coolant temperature of flowing through.
Alternatively, it also comprises: the second branch road, is communicated with described engine water outlet and described switch water pump; Described the second branch road comprises the warm braw heating equipment being arranged in wherein.
Alternatively, it also comprises: the 3rd branch road, is communicated with described engine water outlet and described switch water pump; Described the 3rd branch road comprises the expansion kettle being arranged in wherein.
According on the other hand of the present utility model, a kind of automobile is also provided, it comprises foregoing engine-cooling system.
According to engine-cooling system of the present utility model, by control switch water pump, turn round completely, shut down or intermittent running, can change coolant rate; In addition, by controlling the powering state of electronic thermostat, can change electronic thermostat and open and close opportunity, thereby realize the open and close controlling to engine-cooling system the first branch road, and then control sink dispels the heat.Under the two acting in conjunction, realized the active adjustment to engine-cooling system.According to automobile of the present utility model, by applying this cover engine-cooling system, can regulate it to adapt to various engine operation conditions, thereby both solve the heat dissipation problem under large load and limited conditions, the oil consumption in the time of solving warming-up and sub load again and the problem of Reducing exhaust emission.
Accompanying drawing explanation
Fig. 1 is an embodiment's of engine-cooling system of the present utility model schematic diagram.
Embodiment
Fig. 1 shows an embodiment's of engine-cooling system of the present utility model schematic diagram.It comprises engine cooling portion, engine water outlet 7, switch water pump 1.Wherein, engine cooling portion for for make cooling liquid (for example, cooling liquid is water in the present embodiment) by wherein flow and with the element of motor heat exchange, it can be independently element, also can be a part for motor self.For example, in the embodiment show in figure 1, this engine cooling portion comprises cylinder head water jacket 9 and cylinder body water jacket of engine 11.Switch water pump 1 is connected to the entrance of cylinder body water jacket of engine 11 and cylinder head water jacket 9, and it is cooling that setting like this can guarantee that engine core parts preferentially obtain.Engine water outlet 7 is connected to the outlet of cylinder body water jacket of engine 11 and cylinder head water jacket 9.
In addition, as shown in Figure 1, also have the branch road of three fluid open communication water pumps 1 and engine water outlet 7, it is respectively: the first branch road, is wherein furnished with sink 5 and electronic thermostat 3; The second branch road, is wherein furnished with warm braw heating equipment 10; And the 3rd branch road, be wherein furnished with expansion kettle 6.Wherein, the second branch road and the 3rd branch road are normal open branch road, and cooling liquid can circulate in the loop of the first branch road and/or the second branch road and switch water pump 1, cylinder body water jacket of engine 11, cylinder head water jacket 9 and engine water outlet 7 formation (being common described short circle loop, related domain); Its break-makes are controlled by electronic thermostat 2 in the loop that the first branch road and switch water pump 1, cylinder body water jacket of engine 11, cylinder head water jacket 9 and engine water outlet 7 form (being common described major cycle loop, related domain).Wherein, ECU(engine electric-controlled unit) 12 be electrically connected to electronic thermostat 3 and switch water pump 1 respectively, to realize the object of controlling respectively both.In this programme, also in the first branch road, near electronic thermostat 3 places, the first temperature transducer 2 is set, for detecting its temperature of cooling liquid of flowing through, thereby prevents that electronic thermostat 3 from excessively powering up, and better controls it to realize.Alternatively, the first temperature transducer 2 is arranged on the downstream of electronic thermostat 3.In addition, also in engine water outlet 7 and 9 layouts of cylinder head water jacket by the second temperature transducer 8, to detect output water temperature.
After completing cooling liquid with motor heat exchange and flowing out from cylinder body water jacket of engine 11 and cylinder head water jacket 9, via engine water outlet 8, flow to respectively the second branch road and the 3rd branch road, wherein flow into cooling liquid in the second branch road in warm braw heating equipment 10 with flow through its air heat-exchange, to add hot air, form warm braw, thereby when car air-conditioner heat-production functions starts, assist as driver provides warm braw, improved capacity usage ratio; In addition, flow into cooling liquid in the 3rd branch road expansion kettle 6 of flowing through, for keeping the pressure of engine-cooling system.When electronic thermostat 3 is opened, cooling liquid also can flow into the first branch road, the cooling liquid sink 5 of flowing through now, and carry out heat exchange with the air of being blown over sink 5 by fan 4, thus significantly reduce the temperature of cooling liquid.The cooling liquid that flows through three branch roads is all carried out heat exchange in inflow engine cylinder body water jacket 11 and cylinder head water jacket 9 again, so moves in circles.
Wherein, switch water pump has installed magnetic clutch additional in the water pump driving pulley of the mechanical water pump of tradition, the control that magnetic clutch can be accepted ECU connects or disconnects water pump and driving pulley, thereby controls water pump vane running or stop, and with this, realizes and regulates as required coolant rate.Electronic thermostat is on the basis of traditional thermostat, in wax bag, arranged heating resistor, so make paraffin in thermostat wax bag in perception external refrigeration liquid temp, can also perception the temperature of inner heating resistor, by accepting the control of ECU, inner heating resistor is powered up or power-off, can realize the first temperature of opening of regulation and control electronic thermostat, control thus the break-make opportunity of the first branch road.
In connection with the utility model embodiment as shown in Figure 1, set forth working principle of the present utility model as follows:
When motor is during in warm-up mode, ECU 12 control switch water pumps 1 shut down or intermittent running, with this, realize reduction coolant rate; And by ECU 12, control electronic thermostat 3 and realize higher open temp, thereby postpone the opening time of engine-cooling system the first branch road, motor is worked under higher target coolant temperature, shorten warm-up period, thereby realize the effect that reduces oil consumption and discharge.
When motor is during with operation at part load, ECU 12 control switch water pumps 1 shut down or intermittent running, with this, realize reduction coolant rate; And by ECU 12, control electronic thermostat 3 and realize higher open temp, thereby postpone the opening time of engine-cooling system the first branch road, motor is worked under higher target coolant temperature, and the oil temperature that raises, reduce frictional loss; Also contribute to improve in-cylinder combustion simultaneously, thereby reduce radiation loss; Also realize the effect that reduces oil consumption.
When motor is to load greatly or limited conditions when operation, ECU 12 switch water pump 1 processed turns round to provide peak rate of flow completely, also control electronic thermostat 3 simultaneously and add electric-opening, to be communicated with the first branch road, make the cooling liquid sink 5 of flowing through carry out heat exchange, enter again afterwards cylinder body water jacket of engine 11 and cylinder head water jacket 9 and carry out cooling to it.In this process, the temperature value that ECU 12 gathers by analyzing the first temperature transducer 2, controls and realizes the suitable dutycycle that powers up, thereby avoid electronic thermostat 3 that thereby the problem that turn-on overshoot leaks wax occurs, make operational reliability higher.
According to embodiment of the present utility model, a kind of automobile is also provided, and it has applied engine-cooling system of the present utility model, by improving the part key element in existing system, realize the controllable adjustment of engine-cooling system, and improved oil consumption and emission problem; But also without the structure of existing vehicle is carried out to large change, there is good applicability.
As above with reference to the accompanying drawings embodiment of the present utility model is described in detail.Remodeling or modification that those skilled in the art can be equal to feature concrete in mode of execution according to the above description, certainly, the mode of execution of these changes also will fall in the protection domain that claims cover.
Claims (9)
1. an engine-cooling system, is characterized in that, comprising:
Engine cooling portion, for make cooling liquid pass through wherein to flow and with motor heat exchange;
Engine water outlet, is connected to the outlet of described engine cooling portion;
Switch water pump, is connected to the entrance of described engine cooling portion, and it can control by start and stop the coolant rate of the described engine cooling portion that flows through;
The first branch road, is communicated with described engine water outlet and described switch water pump; Described the first branch road comprises sink and the electronic thermostat being arranged in wherein, and described electronic thermostat can be controlled by start and stop the break-make of described the first branch road.
2. engine-cooling system according to claim 1, is characterized in that, also comprises:
ECU, is electrically connected to respectively described switch water pump and described electronic thermostat, and it is for controlling respectively the start and stop of described switch water pump and/or described electronic thermostat.
3. engine-cooling system according to claim 1, is characterized in that:
Described electronic thermostat is arranged in the downstream of described sink on described the first branch road.
4. engine-cooling system according to claim 1, is characterized in that, also comprises:
The first temperature transducer, is arranged in described the first branch road, for detecting its coolant temperature of flowing through.
5. according to the engine-cooling system described in claim 1 any one, it is characterized in that:
Described the first temperature transducer is arranged in the downstream of described electronic thermostat.
6. according to the engine-cooling system described in claim 1 to 5 any one, it is characterized in that, also comprise:
The second temperature transducer, is arranged between the outlet and described engine water outlet of described engine cooling portion, for detecting its coolant temperature of flowing through.
7. according to the engine-cooling system described in claim 1 to 5 any one, it is characterized in that, also comprise:
The second branch road, is communicated with described engine water outlet and described switch water pump; Described the second branch road comprises the warm braw heating equipment being arranged in wherein.
8. according to the engine-cooling system described in claim 1 to 5 any one, it is characterized in that, also comprise:
The 3rd branch road, is communicated with described engine water outlet and described switch water pump; Described the 3rd branch road comprises the expansion kettle being arranged in wherein.
9. an automobile, is characterized in that, comprises engine-cooling system as claimed in any of claims 1 to 8 in one of claims.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420382498.8U CN204024789U (en) | 2014-07-11 | 2014-07-11 | Engine-cooling system and there is its automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420382498.8U CN204024789U (en) | 2014-07-11 | 2014-07-11 | Engine-cooling system and there is its automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204024789U true CN204024789U (en) | 2014-12-17 |
Family
ID=52064669
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420382498.8U Expired - Fee Related CN204024789U (en) | 2014-07-11 | 2014-07-11 | Engine-cooling system and there is its automobile |
Country Status (1)
| Country | Link |
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| CN (1) | CN204024789U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107013305A (en) * | 2016-01-28 | 2017-08-04 | 长城汽车股份有限公司 | The control method and control device of water pump |
| CN107829813A (en) * | 2017-11-01 | 2018-03-23 | 奇瑞汽车股份有限公司 | A kind of engine-cooling system and method |
| CN111350580A (en) * | 2018-12-20 | 2020-06-30 | 长城汽车股份有限公司 | Engine cooling system and engine cooling control method |
| CN111852640A (en) * | 2019-04-29 | 2020-10-30 | 上海汽车集团股份有限公司 | Thermostat, thermostat control method and engine cooling system |
-
2014
- 2014-07-11 CN CN201420382498.8U patent/CN204024789U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107013305A (en) * | 2016-01-28 | 2017-08-04 | 长城汽车股份有限公司 | The control method and control device of water pump |
| CN107829813A (en) * | 2017-11-01 | 2018-03-23 | 奇瑞汽车股份有限公司 | A kind of engine-cooling system and method |
| CN107829813B (en) * | 2017-11-01 | 2020-07-03 | 奇瑞汽车股份有限公司 | Engine cooling system and method |
| CN111350580A (en) * | 2018-12-20 | 2020-06-30 | 长城汽车股份有限公司 | Engine cooling system and engine cooling control method |
| CN111350580B (en) * | 2018-12-20 | 2021-09-03 | 长城汽车股份有限公司 | Engine cooling system and engine cooling control method |
| CN111852640A (en) * | 2019-04-29 | 2020-10-30 | 上海汽车集团股份有限公司 | Thermostat, thermostat control method and engine cooling system |
| CN111852640B (en) * | 2019-04-29 | 2022-02-18 | 上海汽车集团股份有限公司 | Thermostat, thermostat control method and engine cooling system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141217 |