KR20190042298A - Separate cooling device and separate cooling system for vehicle - Google Patents

Abstract

The present invention relates to a separate cooling mechanism for a vehicle, comprising a first chamber formed with a first inlet and a first outlet, a second chamber formed with a second inlet, and a second chamber arranged to form the first chamber and the second chamber, A thermostat including a first cooling chamber, a first cooling chamber, a first cooling chamber, a first cooling chamber, a first cooling chamber, a first cooling chamber and a second cooling chamber, A thermo-heater for selectively heating the thermostat so that the first outlet and the intermediate hole are opened, and a controller for controlling the operation of the thermo-heater.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a separation cooling apparatus for a vehicle,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a separate cooling mechanism for a vehicle and a separate cooling system for a vehicle, and more particularly, .

The electronic thermostat is a technology to control the flow rate by controlling the opening / closing of the engine depending on the state of the engine. Particular control of the cooling water flow rate is required to improve the fuel economy.

In particular, it is possible to improve the fuel economy through the technique of separating and cooling the cylinder head and the engine block, but in general this requires two or more thermostats.

That is, a head thermostat, which is the main thermostat for controlling the engine coolant temperature, and a block thermostat, which controls the coolant temperature of the block to realize separate cooling between the cylinder head and the engine block, must be provided do.

An object of the present invention is to provide a separate cooling mechanism for a vehicle and a separate cooling system for a vehicle that can separately control the flow of cooling water flowing through the cylinder head and the engine block to improve fuel economy.

An object of the present invention is to provide a separate cooling system for a vehicle and a separate cooling system for a vehicle that can separately control the flow of cooling water flowing through a cylinder head and an engine block by applying one thermo heater and one thermostat.

A separate cooling mechanism for a vehicle according to an embodiment of the present invention includes a first chamber formed with a first inlet and a first outlet, a second chamber formed with a second inlet, and a second chamber disposed to form the first chamber and the second chamber, A thermostat including a separate cooling housing including a first chamber and a partition in which an intermediate hole is formed to communicate with the second chamber, a plate for opening and closing the first outlet, and a valve for opening and closing the intermediate hole, A thermo heater for selectively heating the thermostat so that the first outlet and the intermediate hole are opened, and a controller for controlling operation of the thermo heater.

The thermostat may include a thermostat housing coupled to the plate and the valve, a wax filled in the thermostat housing, and a spring disposed to elastically support the plate.

The thermo heater may further include a guide rod inserted into the thermostat housing to apply heat to the wax and guide the movement of the thermostat housing.

The thermostat may be provided in the first chamber.

The partition may have a guide portion having a predetermined length along the moving direction of the valve to guide the movement of the valve.

The first inlet may introduce cooling water from the cylinder head and the second inlet may introduce cooling water from the engine block.

The separation cooling housing may be formed with a second outlet for discharging the cooling water to the heating heater and a third outlet for discharging the cooling water to the oil cooler.

The second outlet and the third outlet may communicate with the first chamber.

A separate cooling system for a vehicle according to an embodiment of the present invention includes a water pump, a cylinder head cooling water line communicating with the water pump, an engine block cooling water line communicating with the water pump, a first inlet communicating with the cylinder head cooling water line, A first chamber having a first outlet formed therein, a second chamber formed with a second inlet communicating with the engine block cooling water line, and a second chamber disposed to form the first chamber and the second chamber, A thermostat including a plate for opening and closing the first outlet and a valve for opening and closing the middle hole, a first outlet and a second outlet, A thermo heater for selectively heating the thermostat to open the cylinder head cooling water line, A second coolant temperature sensor for measuring a coolant temperature of the engine block cooling water line and outputting a corresponding signal, and a second coolant temperature sensor for outputting a signal corresponding to the output signal of the first and second coolant temperature sensors. And a controller for controlling the operation of the thermo-heater.

The thermostat may include a thermostat housing coupled to the plate and the valve, a wax filled in the thermostat housing, and a spring disposed to elastically support the plate.

The thermo heater may further include a guide rod inserted into the thermostat housing to apply heat to the wax and guide the movement of the thermostat housing.

The thermostat may be provided in the first chamber.

The partition may have a guide portion having a predetermined length along the moving direction of the valve to guide the movement of the valve.

The water pump is a variable water pump, and the controller can control the operation of the variable water pump in accordance with output signals of the first and second cooling water temperature sensors.

The controller may control the operation of the thermo-heater so that the first outlet is opened if the output signal of the first coolant temperature sensor is higher than a set first reference temperature.

The controller may control the operation of the thermo heater so that the intermediate hole is opened when the output signal of the second cooling water temperature sensor is higher than a set second reference temperature.

The controller may stop the operation of the water pump and the thermo heater if the output signals of the first and second cooling water temperature sensors are below the set cold temperature.

The controller may operate the water pump when the output signals of the first and second cooling water temperature sensors exceed a set cold temperature.

According to the separate cooling mechanism for the vehicle and the separate cooling system for the vehicle according to the embodiment of the present invention, the cooling water flowing through the cylinder head and the engine block can be separately controlled to improve fuel economy.

According to the separate cooling mechanism for the vehicle and the separate cooling system for the vehicle according to the embodiment of the present invention, one thermo heater and one thermostat can be applied to separately control the flow of cooling water flowing through the cylinder head and the engine block.

1 is a configuration diagram of a separate cooling system for a vehicle according to an embodiment of the present invention.
2 to 4 are views showing a separate cooling mechanism of a vehicle according to an embodiment of the present invention.
5 to 7 are views for explaining the operation of the separate cooling system of the vehicle according to the embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention.

The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein

Like numbers refer to like elements throughout the specification.

Throughout the specification, when an element is referred to as " comprising ", it means that it can include other elements as well, without excluding other elements unless specifically stated otherwise.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a configuration diagram of a separate cooling system for a vehicle according to an embodiment of the present invention.

Referring to Fig. 1, a separate cooling system for a vehicle according to an embodiment of the present invention includes a water pump 10, an engine 20 including a cylinder head 22 and an engine block 24, A radiator 120 for cooling a part of the cooling water discharged from the separation cooling mechanism 30 and a controller 100 for controlling the operation of the separation cooling mechanism 30, .

2 to 4 are views showing a separate cooling mechanism of a vehicle according to an embodiment of the present invention.

2 to 4, the vehicle cooling / separating mechanism 30 according to the embodiment of the present invention includes a first chamber 40 having a first inlet 32 and a first outlet 36, A second chamber 42 in which the first chamber 40 and the second chamber 42 are formed and a second chamber 42 in which the first chamber 40 and the second chamber 42 are formed, A plate 62 that opens and closes the first outlet 36 and a valve 64 that opens and closes the intermediate hole 54 is provided with a partitioning cooling housing 50 including a partition 52 in which an intermediate hole 54 is formed, The thermostat 60 including the thermostat 60 and the thermostat 70 selectively heating the thermostat 60 to open the first outlet 36 or the first outlet 36 and the intermediate hole 54, .

The thermostat 60 includes a thermostat housing 66 connected to the plate 62 and the valve 64, a wax 65 filled in the thermostat housing 66, As shown in FIG.

The thermo heater 70 further includes a guide rod 72 inserted into the thermostat housing 66 to heat the wax 65 and guide the movement of the thermostat housing 66. When the wax 65 is heated and its volume expands, the thermostat housing 66 moves in a direction opposite to the formation of the guide rod 72.

The thermostat 60 may be provided in the first chamber 40.

That is, the spring 68 is provided between the plate 62 and the partition 52 so that the plate 62 blocks the first outlet 32 and the valve 64 opens the intermediate hole 54, Can be prevented.

A guide portion 56 having a length L set along the moving direction of the valve 64 may be formed in the partition 52 so as to guide the movement of the valve 64. [ The first outlet 36 and the intermediate hole 54 can be sequentially opened by the set length L of the guide portion 56. [

When the heat is transferred from the thermo heater 70, the first outlet 32 is first opened by the expansion of the wax 65 and the intermediate hole 54 is opened by the further expansion of the wax 65 Will be opened.

The first inlet 32 may introduce cooling water from the cylinder head 22 and the second inlet 34 may introduce cooling water from the engine block 24.

The separate cooling housing 50 is provided with a second outlet 37 for discharging the cooling water to the heating heater 107 (see FIG. 1) and a third outlet 38 for discharging the cooling water to the oil cooler 124 (see FIG. 1) And the second outlet 37 and the third outlet 38 can communicate with the first chamber 40.

A separate cooling system for a vehicle according to an embodiment of the present invention will be described with reference to Figs.

A separate cooling system for a vehicle according to an embodiment of the present invention includes a cylinder head cooling water line 101 communicating with the water pump 10, an engine block cooling water line 103 communicating with the water pump 10, A first cooling water temperature sensor 26 for measuring the cooling water temperature of the cooling water line 101 and outputting a corresponding signal, and a second cooling water temperature sensor 26 for measuring the cooling water temperature of the engine block cooling water line 103 and outputting the signal, (28), and the controller (100) controls the operation of the thermo heater (70) according to the output signals of the first and second cooling water temperature sensors (26, 28).

The cylinder head cooling water line 101 is formed to cool the cylinder head 22 and is connected to the first inlet 32 and the engine block cooling water line 103 cools the engine block 24 And is connected to the second inlet (34).

The water pump 10 is a variable water pump and the controller 100 can control the operation of the variable water pump 10 in accordance with output signals of the first and second cooling water temperature sensors 26 and 28 . Here, the variable water pump means a water pump capable of controlling the discharge flow rate by electrical or mechanical control. The construction and operation of the variable water pump are obvious to those skilled in the art, so a detailed description thereof will be omitted do.

The cooling water having passed through the separation cooling mechanism (30) is transferred to the water pump (10) and then to the engine (20).

The cooling water discharged from the first outlet 36 may be transferred to the water pump 10 through the radiator 120 and may be transferred to the water pump 10 through the reservoir 111.

The cooling water discharged from the second outlet 37 may be transferred to the water pump 10 through the LP-EGR 105 and the heating heater 107, for example.

The cooling water discharged from the third outlet 38 may be transferred to the water pump 10 through the ATF warmer 122, the oil cooler 124 and / or the HP-EGR 126.

Further, a separate cooling water discharge line may be connected to the separate cooling mechanism 30 to cool the EGR valve 109. [

In the figure, when cooling water is supplied to the reservoir 111, the EGR valve 109, the LP-EGR 105, the heating heater 107, the automatic transmission fluid warmer 122, the oil cooler 124 And / or the cooling water circuit transferred to the HP-EGR 126 are shown for the sake of convenience, and are not limited to the component parts and cold water circuit shown in the drawings.

5 to 7 are views for explaining the operation of the separate cooling system of the vehicle according to the embodiment of the present invention.

Hereinafter, the operation of the separate cooling system of the vehicle according to the embodiment of the present invention will be described with reference to Figs.

Referring to FIG. 1, in the cold state, the controller 100 turns off the operation of the variable water pump 10 to stop the flow of cooling water. Then, the warming up of the cooling water can be accelerated. In this case, the operation of the thermo heater 70 is also kept off.

That is, if the output signals of the first and second cooling water temperature sensors 26 and 28 are lower than the set cold temperature, for example, about 40 ° C., the controller 100 controls the water pump 10 and the thermo heater 70).

3 and 5, when the output signal of the warm condition, for example, the first and second cooling water temperature sensors 26 and 28 exceeds about 40 ° C, the controller 100 controls the variable water pump 10.

In this case, the first outlet 36 and the intermediate hole 54 are blocked by the plate 62 and the valve 64, respectively. Then, the cooling water flow to the block cooling water line 103 is stalled The cooling water supplied from the variable water pump 10 flows to the second outlet 37 and the third outlet 38 via the first chamber 40. [

In the warm state, the engine warm-up proceeds, friction can be reduced and fuel consumption can be improved.

2 and 6, when the hot condition, for example, the output signal of the first cooling water temperature sensor 26 becomes the set first reference temperature (set hot temperature), for example, about 90 ° C or more, The controller 100 controls the operation of the thermo heater 70 so that the first outlet 36 is opened. At this time, the intermediate hole 54 is blocked by the valve 64.

When the first outlet (36) is opened, a part of the cooling water passes through the radiator (120), is cooled, and circulates to maintain the cylinder head (22) at an appropriate temperature.

4 and 7, when the output signal of the second cooling water temperature sensor 28 is higher than the set second reference temperature (set high hot temperature), for example, about 105 DEG C The operation of the thermo heater 70 is controlled so that the intermediate hole 54 is opened.

In this case, since the intermediate hole 54 is also opened, overheating of the engine block 24 together with the cylinder head 22 can be prevented.

As described above, according to the separate cooling mechanism of the vehicle and the separate cooling system of the vehicle according to the embodiment of the present invention, the cylinder head and the engine block can be separated and cooled.

The cooling water flow can be stopped in the cold condition, the cooling water and the oil temperature can be rapidly raised, the friction can be reduced, and the fuel consumption and heating performance can be improved.

According to the separate cooling mechanism for the vehicle and the separate cooling system for the vehicle according to the embodiment of the present invention, the region for stopping the flow of the cooling water in the engine block can be widened to improve the fuel economy, The cooling performance can be improved.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, And all changes to the scope that are deemed to be valid.

10: Water pump 20: Engine
22: cylinder head 24: engine block
26: first cooling water temperature sensor 28: second cooling water temperature sensor
30: Separation cooling mechanism 32: First inlet
34: second inlet 36: first outlet
37: second outlet 38: third outlet
40: first chamber 42: second chamber
50: separate cooling housing 52: partition
54: intermediate hole 56: guide portion
60: thermostat 62: plate
64: Valve 65: Wax
66: thermostat housing 68: spring
70: Thermo heater 72: Guide rod
100: controller 101: head cooling water line
103: Block cooling water line 105: LP-EGR
107: Heating heater 109: EGR valve
111: reservoir 120: radiator
122: ATF warmer 124: oil cooler
126: HP-EGR

Claims (18)

A first chamber having a first inlet and a first outlet formed therein, a second chamber having a second inlet formed thereon, and a second chamber disposed to form the first chamber and the second chamber, A separate cooling housing including a formed partition;
A thermostat including a plate for opening and closing the first outlet and a valve for opening and closing the middle hole;
A thermo heater for selectively heating the thermostat so that the first outlet or the first outlet and the intermediate hole are opened; And
A controller for controlling the operation of the thermo-heater;
Wherein the cooling device comprises: The method of claim 1,
The thermostat
A thermostat housing coupled to the plate and the valve;
A wax filled in the thermostat housing; And
A spring disposed to elastically support the plate;
Wherein the cooling mechanism comprises: 3. The method of claim 2,
The thermo-heater
A guide rod inserted into the thermostat housing to apply heat to the wax and guide the movement of the thermostat housing;
Further comprising: a cooling mechanism for cooling the vehicle. 4. The method of claim 3,
Wherein the thermostat is provided in the first chamber. 4. The method of claim 3,
Wherein the partition is provided with a guide portion having a predetermined length along the moving direction of the valve so as to guide the movement of the valve. The method of claim 1,
The first inlet introduces cooling water from the cylinder head,
And the second inlet introduces cooling water from the engine block. The method of claim 1,
The separation cooling housing
A second outlet for discharging the cooling water to the heating heater, and a third outlet for discharging the cooling water to the oil cooler. The method of claim 1,
And the second outlet and the third outlet communicate with the first chamber. Water pump;
A cylinder head cooling water line communicating with the water pump;
An engine block cooling water line communicating with the water pump;
A first chamber having a first inlet and a first outlet communicating with the cylinder head cooling water line, a second chamber having a second inlet communicating with the engine block cooling water line, and a second chamber formed to define the first chamber and the second chamber And a partition formed with a middle hole formed to communicate with the first chamber and the second chamber;
A thermostat including a plate for opening and closing the first outlet and a valve for opening and closing the middle hole;
A thermo heater for selectively heating the thermostat so that the first outlet or the first outlet and the intermediate hole are opened;
A first cooling water temperature sensor for measuring a cooling water temperature of the cylinder head cooling water line and outputting a corresponding signal;
A second cooling water temperature sensor for measuring a cooling water temperature of the engine block cooling water line and outputting a corresponding signal; And
A controller for controlling the operation of the thermo-heater according to an output signal of the first and second cooling water temperature sensors;
Wherein the cooling system comprises: The method of claim 9,
The thermostat
A thermostat housing coupled to the plate and the valve;
A wax filled in the thermostat housing; And
A spring disposed to elastically support the plate;
And a cooling system for the vehicle. 11. The method of claim 10,
The thermo-heater
A guide rod inserted into the thermostat housing to apply heat to the wax and guide the movement of the thermostat housing;
Further comprising: a cooling system for cooling the vehicle. The method of claim 9,
Wherein the thermostat is provided in the first chamber. The method of claim 9,
Wherein the partition is provided with a guide portion having a predetermined length along the moving direction of the valve to guide the movement of the valve. The method of claim 9,
The water pump is a variable water pump,
Wherein the controller controls the operation of the variable water pump in accordance with the output signals of the first and second cooling water temperature sensors. The method of claim 14,
The controller
And controls the operation of the thermo heater so that the first outlet opens if the output signal of the first coolant temperature sensor is equal to or higher than a set first reference temperature. The method of claim 14,
The controller
And controls the operation of the thermo heater so that the intermediate hole is opened when the output signal of the second cooling water temperature sensor is equal to or higher than a set second reference temperature. The method of claim 14,
Wherein the controller stops the operation of the water pump and the thermo heater when the output signal of the first and second cooling water temperature sensors is below the set cold temperature. The method of claim 14,
Wherein the controller operates the water pump when the output signal of the first and second cooling water temperature sensors exceeds a set cold temperature.

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