KR20010005359A - Independent Cooling Apparatus And Method For Automotive Vehicle Engine - Google Patents

Abstract

PURPOSE: An independent cooling system and method is provided to achieve uniform cooling operation while improving durability of a cylinder head and engine performance. CONSTITUTION: An independent cooling system comprises a cylinder block water jacket(6) in which the water coolant forcibly fed from a water pump(20) arranged in a cylinder block(4) of an engine flows; a cylinder head water jacket(12) in which the water coolant introduced from the cylinder block water jacket via water coolant passages(8,14) flows; a plurality of flow channels(40) penetrating a cylinder head(10) and which allow the water coolant used for the independent cooling of each of combustion chambers to be discharged; and a manifold(50) having a runner(52) arranged inside the manifold in such a manner as to correspond the flow channel. The runner of the manifold has an end communicated to the flow channel, and the other end communicated to a thermostat(22). A method comprises the first step of cooling the cylinder block by allowing the water coolant to flow through the cylinder block water jacket; the second step of cooling each of combustion chambers by allowing the water coolant flowing through the cylinder block water jacket to be introduced into the cylinder head water jacket and flow through the cylinder head water jacket; and the third step of allowing the water coolant to be operated to independently cool each of combustion chambers, introduced into the runner of the manifold via flow channels, and discharged to the thermostat.

Description

Independent Cooling Apparatus And Method For Automotive Vehicle Engine

The present invention relates to a combustion chamber independent cooling apparatus and method for an automobile engine, and more particularly, by allowing the cooling water introduced into the cylinder head to independently cool each combustion chamber, thereby improving cooling performance and improving durability of the cylinder head. The present invention relates to a combustion chamber independent cooling apparatus and method for an automotive engine, which is adapted to improve the output of the engine.

In general, the engine should be cooled in order to prevent the engine from overheating during operation of the automobile engine and to maintain a suitable temperature so that the engine is not damaged.

Such engine cooling methods include air cooling to cool the inside of the engine using air cooling to cool with air received while the vehicle is running, and water cooling is generally used.

The water-cooled cooling system of such an automobile engine will be described with reference to the accompanying drawings.

The accompanying drawings, Figure 1 is a cooling system diagram of a typical automotive engine, Figure 2 is a partial cross-sectional view showing a portion of a typical automotive engine, Figure 3 is a flow diagram of the cooling water circulating the cylinder head and cylinder block of a conventional automotive engine Figure is shown.

As shown, the cooling system of the automobile engine 2 includes a cylinder block water jacket 6 formed on the cylinder block 4 and a cylinder head water jacket 12 formed on the cylinder head 10, and cooling water to the water jacket. 6, 12, the water pump 20 to circulate the pressure, the radiator 24 to transfer the heat of the coolant of high temperature to the outside air to cool, the fan 26 to help the radiator 24 ventilated, the engine 2 inside The thermostat 22 is configured to automatically open and close the passage according to the coolant temperature change of the coolant temperature accordingly.

In addition, a plurality of cooling water passages 8 and 14 communicating with each other are formed between the cylinder block water jacket 6 and the cylinder head water jacket 12 so that the cooling water can be circulated.

In the cooling system of the automobile engine, the thermostat 22 is closed when the engine 2 does not reach the normal operating temperature (80 to 90 ° C.), and thus the coolant cannot pass through the radiator 24. Only in the engine 2 will the circulation. In this case, the coolant flows through the water jacket 6 of the cylinder block 4 by the water pump 20 and then the coolant of the cylinder head 10 communicated with it through the cooling water passage 8 on the water jacket 6. It flows through the passage 14 to the cylinder head water jacket 12, and then through the cooling water passage 14 on the cylinder head water jacket 12, a part is introduced into the throttle body (not shown), and the other part is a heater After flowing into the water pump 20, the water pump 20 is circulated again.

Next, when the engine 2 is heated to reach a normal operating temperature through the above-described process, the thermostat 22 is opened, and the coolant flowing through the cylinder head water jacket 12 of the engine 2 heated thereon is The coolant passage 14 on the water jacket 12 flows into the radiator 24 through the thermostat 22 side, and is cooled while passing through the radiator 24 and then cooled by the water pump 20 to the engine 2. Will cycle back to.

However, the coolant circulating in the cylinder head 10 of the conventional automobile engine 2 made as described above flows through the water jacket 6 of the cylinder block 4, as shown in the accompanying drawings. The coolant flowing into the coolant passage 14 of the cylinder head 10 through the coolant passage 8 on the c) flows through the cylinder head water jacket 12 to the thermostat 22 through the coolant passage 14 on one side. Since a passage for forming is formed only at one end of the cylinder head 10, the flow is reduced by sequentially cooling each combustion chamber from one end of the cylinder head 10, as shown by the solid arrows in FIG. Since the stat 22 is flowed to the other end, the combustion chamber on the thermostat 22 side is uniformly cooled by the heated coolant introduced while continuously cooling each combustion chamber from one end of the cylinder head 10. Due to this, local thermal imbalance is generated locally in the combustion chamber of the cylinder head 10, thereby deteriorating the durability of the cylinder head 10, and deteriorating knocking characteristics of the engine 2, thereby degrading the performance of the engine 2. There was a problem.

Accordingly, the present invention has been made to solve the problems of the prior art as described above, while improving the flow of cooling water flowing into the thermostat side while cooling each combustion chamber of the cylinder head successively, the cooling water is independent of the combustion chamber of the cylinder head, respectively. To provide a cooling chamber independent cooling apparatus and method for an automobile engine to improve the durability of the cylinder head and to improve the output of the engine by making the cooling operation of the combustion chamber formed in the cylinder head to be equalized by cooling the air. have.

According to an aspect of the present invention, there is provided a vehicle engine comprising: a cylinder block water jacket in which coolant pumped by a water pump provided on one side of a cylinder block of the engine flows in; A cylinder head water jacket in which coolant flowing through the cylinder block water jacket flows into the cylinder head through each cooling water passage and flows around the combustion chamber; A plurality of flow paths formed on one side of the cylinder head water jacket through the cylinder head to cool and discharge the respective combustion chambers independently; A runner corresponding to the flow path is formed in the inside thereof, and is provided at one side of the cylinder head so that one end of the runner is in communication with each flow path, and the other end is in communication with the thermostat; do.

A combustion chamber independent cooling method of an automobile engine, comprising: a first step of cooling a cylinder block while the coolant pumped by the water pump flows into the cylinder block water jacket of the cylinder block; A second step of cooling the combustion chamber while the coolant flowing through the cylinder block water jacket flows into the cylinder head water jacket of the cylinder head through a cooling water passage; And a third step in which the coolant flowing through the cylinder head water jacket independently cools the combustion chamber and flows into the runner of the manifold corresponding thereto through a plurality of flow paths and flows out to the thermostat side.

1 is a cooling system diagram of a typical automobile engine

Figure 2 is a partial cross-sectional view showing a part of a typical automotive engine incision

3 is a view illustrating a flow of coolant circulating in a cylinder head and a cylinder block of a conventional automobile engine;

4 is a view illustrating a cylinder head and a cylinder block to explain a cooling apparatus and a cooling method for independent cooling of a combustion chamber of an automobile engine according to the present invention.

<Explanation of symbols for main parts of drawing>

2: engine 4: cylinder block

6: cylinder block water jacket 8: cooling water passage

10: cylinder head 12: cylinder head water jacket

14: cooling water passage 20: water pump

22: thermostat 24: radiator

26: fan 40: euro

50: manifold 52: runner

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

4 is a view illustrating a cylinder head and a cylinder block to explain a cooling apparatus and a cooling method for independent cooling of a combustion chamber of an automobile engine according to the present invention.

As shown in the drawing, a cylinder block water jacket 6 in which the coolant pressurized by the water pump 20 provided on one side of the cylinder block 4 of the vehicle engine 2 flows in and flows in the cylinder block 4. It is formed in many places.

The coolant flowing through the cylinder block water jacket 6 flows into the cylinder head 10 through the cooling water passage 8 and the corresponding cooling water passage 14 on the cylinder block water jacket 6, and the periphery of the combustion chamber. The cylinder head water jacket 12 which is made to flow is formed in various places including the periphery of the combustion chamber of the cylinder head 10. FIG.

One side of the cylinder head water jacket 12 communicates with the cylinder head water jacket 12 by passing a plurality of flow passages 40 through which one side of the cylinder head 10 is allowed to cool and independently cool each combustion chamber. Is formed.

In addition, the manifold 50 having the runner 52 corresponding to the flow passage 40 formed therein is provided at one side of the cylinder head 10 so that one end of the runner 52 has the respective flow passage 40 described above. ) Is in communication with each other, and the other end is provided to communicate with one passage on the thermostat 22 side.

Here, the flow path 40 flows into the runner 52 of the manifold 50 through a plurality of flow paths 40 formed on one side of the cylinder head water jacket 12 after cooling water cools each combustion chamber. As a result of being discharged to the thermostat 22 side, eventually, one side of the cooling water flows through the cylinder head water jacket 12 in order to cool down to the thermostat 22 side as in the prior art. It is to improve the combustion chamber to be cooled independently.

On the other hand, in the independent combustion method of the combustion chamber of the automobile engine according to the present invention, the coolant pumped by the water pump 20 flows into the cylinder block water jacket 6 of the cylinder block 4 while flowing the cylinder block 4. Cooling water flowing through the first step of cooling and the cylinder block water jacket 6 of the first step flows into the cylinder head water jacket 12 of the cylinder head 10 through the cooling water passage 8 and flows into the combustion chamber. The second step of cooling and the coolant flowing through the cylinder head water jacket 12 of the second step independently cool the combustion chamber and correspond to the plurality of flow paths 40 on one side of the cylinder head water jacket 12. It consists of a third step to flow into the runner 52 of the manifold 50 to flow out to the thermostat 22 side.

When explaining the operation of the present invention made as described above the cooling water pumped by the water pump 20 flows into the cylinder block (4) to cool the cylinder block (4) while flowing through the cylinder block water jacket (6), It enters the cylinder head water jacket 12 through the respective cooling water passages 14 of the cylinder head 10 provided in communication therewith through the cooling water passage 8 on the cylinder block water jacket 6.

As such, the coolant introduced into the cylinder head water jacket 12 cools each combustion chamber while flowing through the cylinder head water jacket 12 around the combustion chamber, as shown in FIG. 4, and then the cylinder head water jacket ( 12 is discharged from the cylinder head water jacket 12 through a plurality of flow paths 40 formed in communication with one side.

At this time, the cooling water flows through the cylinder head water jacket 12 around each combustion chamber and cools each combustion chamber, and then flows out to the thermostat 22 side through the plurality of flow passages 40, so that the combustion chamber is connected to the cooling water. It is cooled independently, thereby the combustion chamber of the cylinder head 10 is equally cooled to solve the thermal imbalance of the cylinder head 10 and to improve durability, and to improve the performance of the engine 2.

Meanwhile, the coolant flowing out of the cylinder head water jacket 12 through the flow passage 40 flows toward the thermostat 22 through each runner 52 of the manifold 50 formed corresponding to the flow passage 40. do.

At this time, the thermostat 22 is closed when the engine 2 has not reached the normal operating temperature, so that the coolant is introduced into the throttle body (not shown), a part of the coolant, After entering the heater (not shown), the water pump 20 is introduced again to circulate inside the engine 2.

Subsequently, when the engine 2 is heated to reach a normal operating temperature while the above process is performed, the thermostat 22 is opened, and the coolant heated by the thermostat is formed at the runner 52 of the manifold 50. 22 is introduced into the radiator 24, cooled while passing through the radiator 24, and then circulated back to the engine 2 by the water pump 20.

As described above, in the combustion chamber independent cooling apparatus and method of the automobile engine of the present invention, a plurality of flow paths are formed on one side of the cylinder head water jacket, and a manifold having a runner corresponding to the flow path is formed on one side of the cylinder head. Since the cooling water flows into the cylinder head water jacket around the combustion chamber and cools down, it flows out to the runner of the manifold through a plurality of flow paths, so that the combustion chamber of the cylinder head is cooled independently by the flow of such cooling water. The operation is made evenly, thereby reducing the thermal imbalance of the cylinder head and improving the durability of the cylinder head, and also has the effect of preventing the knocking of the engine and improving the performance of the engine.

Claims (2)

In the automobile engine 2, A cylinder block water jacket (6) in which the coolant pumped by the water pump (20) provided at one side of the cylinder block (4) of the engine (2) flows in and flows; A cylinder head water jacket (12) in which the coolant flowing through the cylinder block water jacket (6) flows into the cylinder head (10) through each of the cooling water passages (8, 14) and flows around the combustion chamber; A plurality of flow passages (40) formed at one side of the cylinder head water jacket (12) through the cylinder head (10) so that the cooling water independently cools and discharges each combustion chamber; The runner 52 corresponding to the flow path 40 is formed inside thereof, and is provided at one side of the cylinder head 10 so that one end of the runner 52 is in communication with each flow path 40 and the other end is connected to the thermostat. Combustion chamber independent cooling apparatus for a vehicle engine, comprising a; manifold (50) to be in communication with the stat (22). In the combustion chamber independent cooling method of an automobile engine, A first step of cooling the cylinder block 4 while the coolant pumped by the water pump 20 flows into and flows into the cylinder block water jacket 6 of the cylinder block 4; A second step of cooling the combustion chamber while the coolant flowing through the cylinder block water jacket (6) flows into the cylinder head water jacket (12) of the cylinder head (10) through the cooling water passages (8, 14); The cooling water flowing through the cylinder head water jacket 12 independently cools the combustion chamber and flows into the runner 52 of the manifold 50 corresponding thereto through the plurality of flow passages 40 and flows out to the thermostat 22 side. Independent cooling method of the combustion engine of a vehicle engine, characterized in that consisting of;