CN104832268A - Cooling device for engine and engine cooling system and method - Google Patents
Cooling device for engine and engine cooling system and method Download PDFInfo
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- CN104832268A CN104832268A CN201410270283.1A CN201410270283A CN104832268A CN 104832268 A CN104832268 A CN 104832268A CN 201410270283 A CN201410270283 A CN 201410270283A CN 104832268 A CN104832268 A CN 104832268A
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- temperature
- radiator
- grid
- variable grid
- engine
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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
- F01P7/00—Controlling of coolant flow
- F01P7/02—Controlling of coolant flow the coolant being cooling-air
- F01P7/10—Controlling of coolant flow the coolant being cooling-air by throttling amount of air flowing through liquid-to-air heat exchangers
- F01P7/12—Controlling of coolant flow the coolant being cooling-air by throttling amount of air flowing through liquid-to-air heat exchangers by thermostatic control
Abstract
The invention provides a cooling device for an engine and an engine cooling system and a method. The cooling device comprises a cooler and a variable grid. The variable grid is connected to and covers the cooler; and a grid opening angle control part is arranged on the variable grid, and is used for controlling an opening angle of the variable grid. As the variable grid is arranged on the cooler, when the engine is warmed, if the outer circumstance temperature is lower, blades of the variable grid can be adjusted to be totally closed to stop external atmosphere from being blown to the engine, the heat loss of the cooler is reduced, the working environment temperature of the engine is guaranteed, the warming time of the engine is largely shortened, and in particular, the effect is more obvious in cold northern areas; and when the engine is required to be cooled, the grid opening angle control part can be pulled to totally or partially open the variable grid so as to ventilate and cool the cooler.
Description
Technical field
The invention belongs to technical field of vehicle, in particular to a kind of sink for motor, engine-cooling system and method.
Background technique
Motor can produce a large amount of heats in the course of the work, and engine temperature is raised, and has a strong impact on the performance of motor.In order to make engine operation in normal temperature range, need to arrange cooling system to motor.See Fig. 1, current engine-cooling system generally comprises radiator 1' and cooling fan 2', and cooling fan 2' is arranged on radiator 1', and radiator 1' is arranged on the positive windward side of front end, cabin.The concrete structure of radiator 1', see Fig. 2, is generally made up of intake chamber 12', core body 11' and water-supplying chamber 13', and the intake chamber 12' of radiator is connected with the cooling water passage in motor 3' respectively with water-supplying chamber 13'.Because radiator itself does not possess temp. control function, so generally arrange thermostat 4' on the connecting pipe between the intake chamber 12' and in-engine cooling water passage of radiator, when in-engine coolant temperature is higher than preset temperature, thermostat 4 is opened, and the cooling liquid in motor 3' flows to radiator 1' and dispels the heat.Because radiator is without temp. control function, be easy to cause motor excessively cold if thermostat loses efficacy.In addition, car load ECU (Electronic Control Unit, electronic control unit) also reads the coolant temperature that the temperature transducer 31' be arranged in cooling channel of motor gathers, when this temperature is too high, open cooling fan 2', to carry out ventilation and heat to radiator 1'.
As everyone knows, engine overheat and the excessively cold performance that all can affect motor.When outside air temperature is lower, the heat that motor self distributes is very large, causes motor excessively cold, so now can close thermostat and cooling fan.But for the area of cold, especially the winter in the north, even if close thermostat and cooling fan, but because radiator front end airflow grid opens wide, extraneous air is connected with cabin, cause the aggravation that heat of engine runs off, cause the problems such as engine warm-up time is long, working efficiency is lower, complete-vehicle oil consumption increase, have a strong impact on the service behaviour of motor.
Summary of the invention
Given this, the present invention proposes a kind of sink for motor, engine-cooling system and method, be intended to reduce motor warm-up period at low ambient temperatures.
An aspect, the present invention proposes a kind of sink for motor, and this sink comprises radiator and variable grid.Wherein, variable grid connects and is covered in radiator, variable grid is provided with grid opening angle controlling component, and grid opening angle controlling component is used in engine coolant temperature lower than closing variable grid during the first preset temperature.
Further, in above-mentioned sink, this device also comprises: actuator, and be connected with the grid opening angle controlling component of variable grid, actuator is for controlling the opening angle of variable grid.
Further, in above-mentioned sink, actuator comprises: housing and the push rod, temperature-sensitive unit housings, flexible pipe and the elastic member that are arranged in housing; Wherein, housing is fixedly installed in the water-supplying chamber of radiator; One end of push rod is fixedly connected with the inwall of housing, and the other end is free end; Be provided with in temperature-sensitive unit housings and seal space up for safekeeping for what seal paraffin up for safekeeping, temperature-sensitive unit housings is also provided with the duct of one end open, flexible pipe to be placed in duct and sheathed push rod; Temperature-sensitive unit housings is connected with the opening angle controlling component of variable grid; Elastic member is placed between temperature-sensitive unit housings and the inwall of housing.
Further, in above-mentioned sink, actuator comprises: temperature transducer, for gather radiator water-supplying chamber in the temperature of cooling liquid; Stepper motor, output terminal is connected with the grid opening angle controlling component of variable grid; First controller, for receiving the temperature that temperature transducer gathers, and controls stepper motor rotation, and then controls the unlatching of variable grid when the temperature of received cooling liquid is more than or equal to the second preset temperature.
Further, in above-mentioned sink, variable grid comprises the first support, the second support, multiple blade and rotating shaft and grid opening angle controlling component; Wherein, the two ends of each blade are connected with the first support and the second holder pivots respectively by rotating shaft; Grid opening angle controlling component is connected with each blade.
The present invention is provided with variable grid on a heat sink, during engine warm-up, if ambient temperature is lower, the blade of variable grid can be regulated to close completely, stop ambient atmosphere to brush on the engine, reduce the heat loss of motor, ensure that the operating ambient temperature of motor, shorten the warm-up period of motor widely, especially at the northern area of cold, effect is more obvious; When motor needs cooling, can, by pulling grid opening angle controlling component, variable grid be opened wholly or in part, to carry out ventilation and heat to radiator.
On the other hand, the invention allows for a kind of engine-cooling system, comprise thermostat and any one sink above-mentioned; Wherein, thermostat is arranged on the connecting pipe between the intake chamber of radiator and in-engine cooling channel; Further, the open temp of the variable grid in sink is greater than the open temp of thermostat.
Further, above-mentioned engine-cooling system also comprises: cooling fan, collector and second controller.Wherein, cooling fan is fixedly connected on radiator; Collector for gather radiator water-supplying chamber in the temperature of cooling liquid; Second controller for receive radiator water-supplying chamber in the temperature of cooling liquid, and open cooling fan when coolant temperature is more than or equal to the 3rd preset temperature in the water-supplying chamber of radiator.
The radiator of the present invention in engine-cooling system is provided with variable grid, during engine warm-up, if ambient temperature is lower, the blade of variable grid can be regulated to close completely, stop ambient atmosphere to brush on a heat sink, reduce the heat loss of radiator, ensure that the operating ambient temperature of motor, shorten the warm-up period of motor widely, especially at the northern area of cold, effect is more obvious; When motor needs cooling, can, by pulling grid opening angle controlling component, variable grid be opened wholly or in part, to carry out ventilation and heat to radiator.
Another aspect, present invention also offers a kind of engine cooling method, when the method comprises the steps: that in motor, the temperature of cooling liquid is less than the first preset temperature, and the variable grid of closing thermostat, cooling fan and being pre-set on radiator.
Further, when above-mentioned engine cooling method also comprises the steps: that in motor, the temperature of cooling liquid is more than or equal to the first preset temperature, thermostat is opened; When the temperature of the indoor cooling liquid of radiator outlet is more than or equal to the second preset temperature, open variable grid; When the temperature of the indoor cooling liquid of radiator outlet is more than or equal to the 3rd preset temperature, open the cooling fan be installed on radiator; First preset temperature, the second preset temperature, the 3rd preset temperature increase progressively successively.
Further, when the temperature of the indoor cooling liquid of radiator outlet is more than or equal to the second preset temperature, opens in variable grid step and also comprise: the opening angle controlling variable grid according to the temperature of the indoor cooling liquid of radiator outlet.
Engine cooling method in the present invention is when engine warm-up, if ambient temperature is lower, the blade of variable grid can be regulated to close completely, ambient atmosphere is stoped to brush on the engine, reduce the heat loss of motor, ensure that the operating ambient temperature of motor, shorten the warm-up period of motor widely, especially at the northern area of cold, effect is more obvious; When motor needs cooling, can thermostat be opened, cool to make the cooling liquid of radiator to motor; When still can not meet the cooling requirement of motor after opening thermostat, can, by pulling grid opening angle controlling component, variable grid be opened wholly or in part, to carry out ventilation and heat to radiator; And after variable grid is opened completely, when still can not meet the cooling requirement of motor, start cooling fan.Can find out, the present invention, by arranging stair-stepping open temp, can reach the object making the rapid warming-up of motor, reduce the cooling fan opening time, reduce energy ezpenditure.
Accompanying drawing explanation
By reading hereafter detailed description of the preferred embodiment, various other advantage and benefit will become cheer and bright for those of ordinary skill in the art.Accompanying drawing only for illustrating the object of preferred implementation, and does not think limitation of the present invention.And in whole accompanying drawing, represent identical parts by identical reference symbol.In the accompanying drawings:
Fig. 1 is the structural representation of engine-cooling system in correlation technique;
Fig. 2 is the structural representation of radiator in correlation technique;
The structural representation of the sink for motor that Fig. 3 provides for the embodiment of the present invention;
The structural representation for the wax formula temperature controller in the sink of motor that Fig. 4 provides for the embodiment of the present invention;
The structural representation for the another middle actuator in the sink of motor that Fig. 5 provides for the embodiment of the present invention;
The structural representation of the engine-cooling system that Fig. 6 provides for the embodiment of the present invention;
The structural representation of variable grid in the engine-cooling system that Fig. 7 provides for the embodiment of the present invention;
The schematic flow sheet of the engine cooling method that Fig. 8 provides for the embodiment of the present invention.
Embodiment
Below with reference to accompanying drawings exemplary embodiment of the present disclosure is described in more detail.Although show exemplary embodiment of the present disclosure in accompanying drawing, however should be appreciated that can realize the disclosure in a variety of manners and not should limit by the embodiment that sets forth here.On the contrary, provide these embodiments to be in order to more thoroughly the disclosure can be understood, and complete for the scope of the present disclosure can be conveyed to those skilled in the art.
Sink embodiment:
See the structural representation of the sink for motor that Fig. 3, Fig. 3 provide for the embodiment of the present invention.As shown in the figure, the present embodiment comprises radiator 1 and variable grid 5.
Wherein, radiator 1 comprises core body 11, intake chamber 12 and water-supplying chamber 13.Intake chamber 12 and water-supplying chamber 13 are for being connected with in-engine cooling channel.
Variable grid 5 connects and is covered in radiator 1.Wherein, the concrete structure of variable grid 5 is identical with the structure of venetian blind in prior art, so the concrete structure of the embodiment of the present invention to variable grid 5 repeats no more.During concrete enforcement, variable grid 5 can be connected with the outer wall of water-supplying chamber 13 with the intake chamber 12 of radiator 1, variable grid 5 is covered in the whole surface of radiator 1, and and leave certain distance between the surface of radiator 1, can overturn to make the blade of variable grid 5.It will be appreciated by those skilled in the art that and variable grid 5 should be provided with grid opening angle controlling component, with the flip angle of adjusting vane.During concrete enforcement, opening angle controlling component can be bracing wire 51 or pull bar, and in the present embodiment, grid opening angle controlling component is used for closing this variable grid 5 when engine coolant temperature is less than the first preset temperature.It should be noted that, during concrete enforcement, can be bolted between the intake chamber 12 of variable grid 5 and radiator 1 and the outer wall of water-supplying chamber 13, welding, clamping and other modes can be adopted integrated, and the concrete linkage structure of the embodiment of the present invention to variable grid 5 and intake chamber 12 and water-supplying chamber 13 does not do any restriction yet.
During concrete enforcement, operator can operate grid opening angle controlling component to regulate variable grid opening and closing, during engine warm-up, operator close variable grid, after warming-up completes, operator can open variable grid, and in the area of cold, variable grid also can remain on the state of closedown always.
The embodiment of the present invention is when engine warm-up, if ambient temperature is lower, operator can regulate the blade of variable grid to close completely, ambient atmosphere is stoped to brush on the engine, reduce the heat loss of motor, and then ensure that the operating temperature of motor, shorten the warm-up period of motor widely, especially at the northern area of cold, effect is more obvious; When motor needs cooling, can, by pulling grid opening angle controlling component, variable grid be opened wholly or in part, to carry out ventilation and heat to radiator; In addition, at the northern area of cold, variable grid also can remain on closed condition always, to improve the service behaviour of motor.
In above-described embodiment, after variable grid 5 is closed, ambient atmosphere can be stoped to enter engine compartment, to reduce the heat loss of motor, so the variable grid 5 in the embodiment of the present invention can be arranged on the windward side (left side of radiator shown in Fig. 3) of radiator 1, stop entering of ambient air; Also lee face (the right side of radiator shown in Fig. 3 of radiator 1 can be arranged on, namely towards the one side of motor), now, variable grid 5 is placed between radiator 1 and motor, owing to increasing the back pressure of radiator 1 air intake, this kind of set-up mode also can stop entering of ambient air.
In order to automatically control the opening angle of variable grid, in the various embodiments described above, can also set up: actuator.Wherein, actuator is connected with the opening angle controlling component of variable grid 5, and actuator can automatically regulate the opening angle of variable grid 5 according to the temperature of cooling liquid in the water-supplying chamber 13 of radiator 1.
Particularly, when in the water-supplying chamber 13 of radiator 1, the temperature of cooling liquid is less than the second preset temperature, the blade of the variable grid 5 of actuating mechanism controls is closed completely; When in the water-supplying chamber 13 of radiator 1, the temperature of cooling liquid is more than or equal to the second preset temperature, the variable grid 5 of actuating mechanism controls is opened, and to make extraneous air brush on radiator 1, carries out ventilation and heat to radiator 1.
During engine warm-up, the blade that actuator can control variable grid is closed completely, to ensure the operating temperature of motor, shortens the warm-up period of motor; When motor needs cooling, radiator is opened, in-engine cooling liquid flows through radiator 1, coolant temperature in the water-supplying chamber 13 of radiator 1 raises, when in the water-supplying chamber 13 of radiator 1, the temperature of cooling liquid is more than or equal to the second preset temperature, actuator automatically controls the blade upset of variable grid 5, and automatically adjust the flip angle of blade according to the temperature of cooling liquid in water-supplying chamber 13, to carry out ventilation and heat to radiator, reduce the operating temperature of motor, improve the service behaviour of motor; At the northern area of cold, when engine work, even if close radiator, the operating temperature of motor still may lower than setting temperature, and now the blade of the variable grid of actuating mechanism controls is closed, to improve the operating temperature of motor.
Can find out, the embodiment of the present invention automatically can regulate the opening angle of variable grid according to the temperature of cooling liquid in water-supplying chamber in radiator, and then regulates the operating ambient temperature of motor, ensures the service behaviour of motor.
In one embodiment of the invention, actuator is wax formula temperature controller, is arranged in the water-supplying chamber of radiator.See Fig. 4, this wax formula temperature controller comprises: housing 61 and the push rod 62, temperature-sensitive unit housings 63, flexible pipe 65 and the elastic member 64 that are arranged in housing 61.Wherein, housing 61 is fixedly connected with the inwall of the water-supplying chamber 13 of radiator 1; One end of push rod 62 is fixedly connected with the inwall of housing 61, and the other end is free end; Be provided with in temperature-sensitive unit housings 63 and seal space up for safekeeping for what seal paraffin 66 up for safekeeping, temperature-sensitive unit housings 63 is also provided with the duct of one end open, flexible pipe 65 is placed in this duct and is set in outside push rod 62; Housing 61 offers attachment hole, and the opening angle controlling component of variable grid 5 is connected with temperature-sensitive unit housings 63 through after this attachment hole; Elastic member 64 is placed between the inwall of temperature-sensitive unit housings 63 and housing 61.
It should be noted that, when specifically implementing, temperature-sensitive unit housings 63 should be made up of rubber elastomeric material, such as; Flexible pipe 65 can be the flexible pipes such as sebific duct; Opening angle controlling component can be bracing wire 51.
The working procedure of this wax formula temperature controller is: when in the water-supplying chamber 13 of radiator 1, the temperature of cooling liquid is less than the second preset temperature, paraffin 66 is in solid-state, the length that the now bracing wire 51 of variable grid 5 is positioned at support housing is the shortest, bracing wire 51 is in relaxation state, the rotation angle of variable grid 5 blade is 0, can close completely by declension grid 5; When in the water-supplying chamber 13 of radiator 1, the temperature of cooling liquid is more than or equal to the second preset temperature, paraffin 66 melts liquefy, expanded by heating compression duct, the space in duct is diminished, flexible pipe 65 is compressed, flexible pipe 65 pairs of push rods 62 produce active force, one end due to push rod 62 is fixed on housing 61, so under the effect of reaction force, entirety moves to right by temperature-sensitive unit housings 63, compression spring part 64 produces displacement, and drives bracing wire to produce displacement, thus controls variable grid 5 and open certain angle; Temperature in the water-supplying chamber 13 of radiator 1 continues to raise, and paraffin 66 continues to melt, and continues to drive the upset of the blade of variable grid 5 so that open completely; When in the water-supplying chamber 13 of radiator 1, the temperature of cooling liquid is less than the second preset temperature, under the active force of spring members 64, temperature-sensitive unit housings 63 return, the blade of variable grid 5 is closed.
In another embodiment of the invention, see Fig. 5, actuator comprises: temperature transducer 81, stepper motor 83 and the first controller 82.Wherein, temperature transducer 81 for gather radiator 1 water-supplying chamber 13 in the temperature value of cooling liquid; The output terminal of stepper motor 83 is connected with the opening angle controlling component of variable grid 5, and the input end of stepper motor 83 is connected with the first controller 82; First controller 82 for receive radiator 1 water-supplying chamber 13 in the temperature of cooling liquid, and to rotate according to received temperature control step motor 83, and then regulate the opening angle of variable grid 5.
When in the water-supplying chamber 13 of radiator 1, the temperature of cooling liquid is less than the second preset temperature, the first controller 82 controls variable grid 5 by stepper motor 83 and closes completely; When in the water-supplying chamber 13 of radiator 1, the temperature of cooling liquid is more than or equal to the second preset temperature, the first controller 82 drives the blade of variable grid 5 to open by stepper motor 83, and according to the angle that the adjustment of gathered temperature value is opened.
During concrete enforcement, variable grid 5 can comprise the first support, the second support, multiple blade and rotating shaft and grid opening angle controlling component.Wherein, the two ends of each blade are connected with the first support and the second holder pivots respectively by rotating shaft; Grid opening angle controlling component is connected with each blade.
To sum up, the embodiment of the present invention can control the opening angle of variable grid according to the temperature of cooling liquid in water-supplying chamber in radiator, and then regulates the operating temperature of motor, shortens the warm-up period of motor, improves the service behaviour of motor.
Engine-cooling system embodiment:
The embodiment of the present invention also proposed a kind of engine-cooling system, and this system comprises any one sink above-mentioned.Wherein, the specific implementation process of sink illustrates see above-mentioned, and the present invention does not repeat them here.It will be appreciated by those skilled in the art that engine-cooling system can also comprise the devices such as oil cooler, condenser, intercooler.Because sink has above-mentioned technique effect, so the engine-cooling system with this sink also has corresponding technique effect.
See Fig. 6, this engine-cooling system also comprises: thermostat 7.Thermostat 7 is arranged on the connecting pipe 14 between the cooling water passage in the intake chamber 12 of radiator 1 and motor 3, and the open temp of the variable grid in sink is greater than the open temp of thermostat.Wherein, the open temp of thermostat is thermostat temperature of cooling liquid in motor when opening, the open temp of variable grid be variable grid radiator when opening water-supplying chamber in the temperature of cooling liquid.In the present embodiment, if the open temp of thermostat is the first preset temperature, the open temp of variable grid is set to the second preset temperature, and the second preset temperature is greater than the first preset temperature
In the present embodiment, when in motor 3, the temperature of cooling liquid is more than or equal to the first preset temperature, thermostat 7 is opened, and the cooling liquid inflow radiator 1 in motor 3 cools; After thermostat 7 is opened, the heat distributed when motor continues to increase, and causes the cooling liquid in radiator outlet room 13 to continue to raise, when the temperature of cooling liquid is more than or equal to the second preset temperature in water-supplying chamber, variable grid is opened by actuator, to carry out ventilation and heat to radiator 1.
Continue see Fig. 6, the various embodiments described above can also comprise: cooling fan 2, collector and second controller.Wherein, cooling fan 2 is fixedly connected on radiator 1; Collector for gather radiator 1 water-supplying chamber 13 in the temperature of cooling liquid.During concrete enforcement, collector can be temperature transducer, is arranged in the water-supplying chamber 13 of radiator 1; Second controller for receiving the temperature of the radiator outlet indoor cooling liquid of collector collection, and opens cooling fan, to carry out ventilation and heat to radiator 1 when the temperature of cooling liquid is more than or equal to the 3rd preset temperature in the water-supplying chamber 13 of radiator 1; 3rd preset temperature is greater than the second preset temperature.First preset temperature, the second preset temperature, the 3rd are preset temperature and are increased progressively successively.
It should be noted that, first preset temperature, the second preset temperature and the 3rd preset temperature can be determined according to concrete engine conditions, such as, for concrete motor, first preset temperature can be 85 degree, second preset temperature can be 90 degree, and the 3rd preset temperature can be 95 degree, and the concrete value of the embodiment of the present invention to the first preset temperature, the second preset temperature and the 3rd preset temperature does not do any restriction.
In addition, when actuator is for structure shown in Fig. 5, the collector in the present embodiment and second controller can omit, and are realized by the temperature transducer in actuator and the first controller.
Can find out, when variable grid opens the temperature requirement that still can not meet motor completely, the present embodiment by opening cooling fan, with to the further ventilation and heat of radiator.
The present invention by with the radiator with variable grid, controls being communicated with of air and cabin, in water temperature being communicated with lower than obstruct air during set temperature and cabin, thus reaches the rapid warming-up of motor and the object avoiding motor excessively cold.
Below in conjunction with Fig. 6, Fig. 7, the embodiment of the present invention is described in more detail:
As shown in the figure, the present embodiment comprises the radiator 1, cooling fan 2, wax formula temperature controller 6 and the thermostat 7 that are provided with variable grid 5.Wherein, wax formula temperature controller 6 is arranged in the water-supplying chamber 13 of radiator 1, and cooling fan 2 is arranged on radiator 1, and thermostat 7 is connected on the connecting pipe 14 between the cooling channel in the intake chamber 12 of radiator 1 and motor 3.The structure of variable grid 5 is identical with the structure of venetian blind well-known to those skilled in the art, specifically see Fig. 7, can comprise: the first support 52, second support (not shown), multiple blade 53 and rotating shaft 54 and bracing wire 51.Wherein, the two ends of each blade 53 are connected with the first support 52 and the second holder pivots respectively by rotating shaft 54, and the two ends of the first support 52 are connected with the outer wall of water-supplying chamber 13 with the intake chamber 12 of radiator 1 respectively; Stear drawing line 51, can control the opening angle of blade 53.Bracing wire 51 is fixedly connected with the temperature-sensitive unit housings 63 in wax formula temperature controller 6.Temperature during temperature-sensitive unit housings 63 setting in motion in wax formula temperature controller is set to the open temp higher than motor thermostat 7, and the temperature value that cooling fan 2 starts to rotate is set to higher than temperature during temperature-sensitive unit housings 63 setting in motion.
After motor 3 starts, because the temperature of cooling liquid is very low in the water-supplying chamber 13 of radiator 1, so variable grid 5 is closed completely, stop the connection in ambient atmosphere and cabin, thus reach the object of rapid warming-up; Motor 3 water temperature rises, and when being more than or equal to the first preset temperature, after thermostat 7 is opened, cooling liquid flows through radiator 1, and now because temperature-sensitive unit housings 63 does not move, variable grid 5 is in closed condition, radiator 1 effective amount of dispelling the heat is lower, water temperature cools naturally, if now engine radiating amount no longer continues to increase, this state will maintain; If the heat dissipating capacity of motor 3 continues to increase, in the water-supplying chamber 13 of radiator 1, the temperature of cooling liquid will rise, when in water-supplying chamber 13, cooling temperature is also more than or equal to the second preset temperature, reach the temperature value that temperature-sensitive unit housings 63 starts movement, temperature-sensitive unit housings 63 starts mobile, and then drives variable grid 5 to open certain angle, the heat dissipating capacity of radiator 1 increases, now, if meet the heat dissipating capacity of motor, this state will maintain; If engine radiating tolerance continues to increase, variable grid 5 will be opened completely, and now under radiator 1 nature, heat dissipating capacity is maximum, if meet the demand of motor 3 heat dissipating capacity, this state will maintain; If motor 3 heat dissipating capacity continues to increase, in radiator outlet room 13, the temperature of cooling liquid also rises thereupon, when coolant temperature is more than or equal to the 3rd preset temperature in water-supplying chamber 13, reaches the start-up temperature of cooling fan 2, cooling fan 2 will be opened, to strengthen the heat dissipating capacity of radiator 1.
The embodiment of the present invention, by the opening angle of the variable grid of adjustment, is communicated with cabin to control air, in the north of cold, can control distributing of heat in cabin, thus lifting engine warm-up time; If motor self-radiating amount is excessive, because radiator prevents entering of cool ambient air, also can keep temperature in cabin, make motor operate in rational temperature range; In addition, the embodiment of the present invention, by arranging stair-stepping open temp, can reach and make the rapid warming-up of motor, minimizing cooling fan opening time, namely reduce the object of energy ezpenditure.In addition, because embodiment of the present invention radiator can regulate temperature by variable grid, even if so thermostat inefficacy also can control water temperature be unlikely to too low.
Engine cooling method embodiment:
The embodiment of the present invention also proposed a kind of engine cooling method, wherein, the method comprises the steps: step S1: when in motor, the temperature of cooling liquid is less than the first preset temperature, the variable grid of closing radiator, cooling fan and being pre-set on radiator.
In the embodiment of the present invention, operator can regulate the opening angle of variable grid by grid opening angle controlling component, and then regulate the operating temperature of motor.Under the environment that temperature is lower, during engine warm-up, operator can regulate the blade of variable grid to close completely, and to ensure the operating temperature of motor, shorten the warm-up period of motor, especially at the northern area of cold, effect is more obvious; After engine warm-up, operator can, by pulling grid opening angle controlling component, make variable grid open wholly or in part.In addition, at the northern area of cold, when engine work, even if close radiator, the operating temperature of motor still may, lower than setting temperature, now also can make variable grid remain on closed condition, to improve the service behaviour of motor always.
See Fig. 8, the engine cooling method in above-described embodiment can also comprise the steps: step S2, when the temperature of cooling liquid is more than or equal to the first preset temperature in motor, opens thermostat, and radiator cools in-engine cooling liquid; Step S3, when the temperature of the indoor cooling liquid of radiator outlet is more than or equal to the second preset temperature, opens variable grid; Step S4, when the temperature of the indoor cooling liquid of radiator outlet is more than or equal to the 3rd preset temperature, opens the cooling fan be installed on radiator.
Particularly, the first preset temperature, the second preset temperature, the 3rd are preset temperature and are increased progressively successively.When the temperature of the indoor cooling liquid of radiator outlet is less than the second preset temperature, close variable grid; When the temperature of the indoor cooling liquid of radiator outlet is more than or equal to the second preset temperature, open variable grid.When the temperature of the indoor cooling liquid of radiator outlet is less than the 3rd preset temperature, close the cooling fan installed on a heat sink; When the temperature of the indoor cooling liquid of radiator outlet is more than or equal to the 3rd preset temperature, open the cooling fan installed on a heat sink.
After motor 3 starts, because in the water-supplying chamber 13 of radiator 1, the temperature of cooling liquid is very low, so variable grid 5 is closed completely; If motor 3 water temperature rises, and is more than or equal to the first preset temperature, then thermostat 7 is opened, and cooling liquid flows through radiator 1 and cools; If the heat dissipating capacity of motor 3 continues to increase, in the water-supplying chamber 13 of radiator 1, the temperature of cooling liquid will rise, when in the water-supplying chamber 13 of radiator 1, the temperature of cooling liquid is more than or equal to the second preset temperature, operator can open by the variable grid of manually-operable wholly or in part, to carry out ventilation and heat to radiator; If motor 3 heat dissipating capacity continues to increase, in the water-supplying chamber of radiator, the temperature of cooling liquid also increases, and when the temperature of cooling liquid in water-supplying chamber is higher than the 3rd preset temperature, reaches the start-up temperature of cooling fan 2, cooling fan 2 will be opened, to strengthen the heat dissipating capacity of radiator 1.
In above-described embodiment, owing to being that the variable grid of operator's manually-operable is opened wholly or in part, so the opening angle of variable grid can not be adjusted in real time according to the temperature of the indoor cooling liquid of radiator outlet, to meet the demand of engine radiating, in order to address this problem, can also make further improvements above-described embodiment: after opening variable grid in step s3, also automatically regulate the opening angle of variable grid according to the temperature of the indoor cooling liquid of radiator outlet, and then regulate the operating ambient temperature of motor in real time.During concrete enforcement, the opening angle of variable grid can be controlled in real time by control gear.
In the present embodiment, during engine warm-up, the blade that can control variable grid is closed completely, and to ensure the operating temperature of motor, shorten the warm-up period of motor, especially at the northern area of cold, effect is more obvious; When motor needs cooling, radiator is opened, in-engine cooling liquid flows through radiator, coolant temperature in the water-supplying chamber of radiator raises, when in the water-supplying chamber of radiator, the temperature of cooling liquid is higher than the second preset temperature, the blade of variable grid is opened, to carry out ventilation and heat to radiator; If now, in radiator, in water-supplying chamber, the temperature of cooling liquid continues to raise, then open cooling fan, to carry out ventilating and cooling to radiator.
Can find out, the embodiment of the present invention, by arranging stair-stepping open temp, can reach the object making the rapid warming-up of motor, reduce the cooling fan opening time, reduce energy ezpenditure.
It should be noted that, engine-cooling system is identical with engine cooling method principle, and relevant part can cross-reference.
Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (10)
1., for a sink for motor, this device comprises radiator (1), it is characterized in that, also comprises:
Variable grid (5), connects and is covered in described radiator (1); Described variable grid (5) is provided with grid opening angle controlling component, and described grid opening angle controlling component is for controlling the opening angle of described variable grid.
2. the sink for motor according to claim 1, is characterized in that, also comprise:
Actuator, be connected with the grid opening angle controlling component of described variable grid (5), described actuator is used for the opening angle controlling described variable grid (5) according to the temperature of water-supplying chamber (13) the interior cooling liquid of described radiator (1).
3. the sink for motor according to claim 2, it is characterized in that, described actuator comprises: housing (61) and the push rod (62), temperature-sensitive unit housings (63), flexible pipe (65) and the elastic member (64) that are arranged in described housing (61); Wherein,
Described housing (61) is fixedly installed in the water-supplying chamber (13) of described radiator (1);
One end of described push rod (62) is fixedly connected with the inwall of described housing (61), and the other end is free end;
Be provided with in described temperature-sensitive unit housings (63) and seal space up for safekeeping for what seal paraffin (66) up for safekeeping, described temperature-sensitive unit housings (63) is also provided with the duct of one end open, described flexible pipe (65) to be placed in described duct and to be sheathed on described push rod (62); Described temperature-sensitive unit housings (63) is connected with the opening angle controlling component of described variable grid (5);
Described elastic member (64) is placed between the inwall of described temperature-sensitive unit housings (63) and described housing (61).
4. the sink for motor according to claim 2, is characterized in that, described actuator comprises:
Temperature transducer (81), for gathering the temperature of water-supplying chamber (13) the interior cooling liquid of described radiator (1);
Stepper motor (83), output terminal is connected with the grid opening angle controlling component of described variable grid (5);
First controller (82), for receiving the temperature that described temperature transducer gathers, and control the rotation of described stepper motor when the temperature of received cooling liquid is more than or equal to the second preset temperature, and then control the unlatching of described variable grid (5).
5. the sink for motor according to any one of claim 1 to 4, is characterized in that, described variable grid (5) comprises the first support, the second support, multiple blade and rotating shaft and grid opening angle controlling component; Wherein,
The two ends of each described blade are connected with the first support and the second holder pivots respectively by rotating shaft;
Described grid opening angle controlling component is connected with each described blade.
6. an engine-cooling system, is characterized in that, comprises thermostat (7) and the sink according to any one of claim 1 to 5; Wherein, described thermostat (7) is arranged on the connecting pipe (14) between the intake chamber (12) of described radiator (1) and in-engine cooling channel; Further, the open temp of the variable grid (5) in described sink is greater than the open temp of described thermostat (7).
7. engine-cooling system according to claim 6, is characterized in that, also comprises:
Cooling fan (2), is fixedly connected on described radiator (1);
Collector, for gathering the temperature of water-supplying chamber (13) the interior cooling liquid of described radiator (1);
Second controller, for receiving the temperature of described water-supplying chamber (13) interior cooling liquid, and opens described cooling fan (2) when the temperature of cooling liquid is more than or equal to the 3rd preset temperature in described water-supplying chamber (13).
8. an engine cooling method, is characterized in that, when comprising the steps: that in motor, the temperature of cooling liquid is less than the first preset temperature, and the variable grid of closing thermostat, cooling fan and being pre-set on radiator.
9. engine cooling method according to claim 8, is characterized in that, the method also comprises the steps:
When the temperature of cooling liquid is more than or equal to the first preset temperature in motor, open thermostat;
When the temperature of the indoor cooling liquid of radiator outlet is more than or equal to the second preset temperature, open variable grid;
When the temperature of the indoor cooling liquid of radiator outlet is more than or equal to the 3rd preset temperature, open the cooling fan be installed on radiator;
Described first preset temperature, the second preset temperature, the 3rd preset temperature increase progressively successively.
10. engine cooling method according to claim 9, is characterized in that, when the temperature of the indoor cooling liquid of described radiator outlet is more than or equal to the second preset temperature, opens in variable grid step and also comprises:
The opening angle of described variable grid is controlled according to the temperature of the indoor cooling liquid of described radiator outlet.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410270283.1A CN104832268A (en) | 2014-06-17 | 2014-06-17 | Cooling device for engine and engine cooling system and method |
| DE112014006749.0T DE112014006749T5 (en) | 2014-06-17 | 2014-12-30 | A heat dissipation device for an engine and a cooling system and method for an engine |
| PCT/CN2014/095653 WO2015192636A1 (en) | 2014-06-17 | 2014-12-30 | Heat radiating device for engine, cooling system and method for engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410270283.1A CN104832268A (en) | 2014-06-17 | 2014-06-17 | Cooling device for engine and engine cooling system and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104832268A true CN104832268A (en) | 2015-08-12 |
Family
ID=53810403
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410270283.1A Pending CN104832268A (en) | 2014-06-17 | 2014-06-17 | Cooling device for engine and engine cooling system and method |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN104832268A (en) |
| DE (1) | DE112014006749T5 (en) |
| WO (1) | WO2015192636A1 (en) |
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| CN107376166A (en) * | 2017-09-04 | 2017-11-24 | 三汽车制造有限公司 | Fire resisting fire fighting truck |
| CN108362600A (en) * | 2018-01-31 | 2018-08-03 | 天津伟思实验仪器科技有限公司 | A kind of limit thermal shock test chamber |
| CN109624692A (en) * | 2018-12-14 | 2019-04-16 | 东风柳州汽车有限公司 | Automobile cooling device |
| CN110318856A (en) * | 2019-07-12 | 2019-10-11 | 青岛未来创新高新技术有限公司 | The intelligent temperature control system and its implementation of unmanned vehicle engine |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113446104A (en) * | 2021-06-29 | 2021-09-28 | 惠州市国轻轻合金材料研究院 | Combined radiator of automobile engine |
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2015192636A1 (en) | 2015-12-23 |
| DE112014006749T5 (en) | 2017-03-23 |
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