KR200153367Y1 - Water pump of engine in water colling type - Google Patents

Abstract

In the water pump of the water-cooled engine, it blocks the inflow of foreign substances into the pump body, prevents water vapor generated in the pump body from flowing into the sliding part of the bearing, and smoothly flows out to prevent damage to the bearings. To extend lifespan; A pump chamber for supplying cooling water; A leak chamber in which leaked coolant is temporarily stored; And a mechanical seal for blocking the pump chamber and the leak chamber; An upper discharge passage configured horizontally on an upper portion of the pump body; A lower discharge passage configured to be inclined downward; An absorption ring that prevents steam from the leakage chamber from flowing into the bearing sliding portion and absorbs water vapor; The water pump of the water-cooled engine, characterized in that the absorbed water vapor comprises a steam blocking portion consisting of a plate to block the inlet to the bearing sliding portion.

Description

Water Pump of Water Cooling Engine

1 is a cross-sectional view of the water pump of the water cooling engine according to the present invention.

2 is a cross-sectional view taken along the line II-II of FIG.

3 is a cross-sectional view of a water pump of a water-cooled engine according to the prior art.

4 is a cross-sectional view taken along the line IV-IV of FIG.

* Explanation of symbols for main parts of the drawings

14: leak chamber 18: upper discharge passage

20: lower discharge passage 22: steam blocking part

24 absorption ring 26 plate

[Industrial use]

The present invention relates to a water pump of a water-cooled engine, and more particularly, to a water pump of a water-cooled engine that removes steam generated in the pump body and prevents inflow of foreign substances.

[Private Technology]

The cooling device is a device that cools the engine to prevent overheating of the engine and maintains the engine's performance by maintaining the engine at an appropriate temperature.

By the temperature of the combustion gas combusted in the combustion chamber, heat of the engine is conducted to the cylinder, the cylinder head, the piston, the valve and the like. If the temperature of such a portion is excessively high, the strength of the component material is lowered, thereby causing a failure or shortening of the service life, and also the combustion state is worsened, causing knocking or premature ignition, and as a result, the output of the engine is lowered.

In addition, in the incomplete cooling state, the oil film of the cylinder wall is cut off, and the lubrication function is deteriorated, and the oil is deteriorated.

On the contrary, if the engine is excessively cooled, the amount of heat lost by cooling is large in the amount of heat generated from combustion, which causes problems such as low engine thermal efficiency and increased fuel consumption. Therefore, it is a function of the cooling device to maintain the engine temperature properly. to be.

The engine cooling system includes an air cooling system for directly cooling the engine by external air, and a water cooling system for cooling the cooling water by circulating the engine in the water jacket.

Water-cooled type has natural circulation and forced circulation according to the water circulation system, but natural circulation is not reliable for cooling, so most forced circulation is used.

Forced circulation type is to circulate the cooling water in the water jacket provided in the cylinder block and the cylinder head to the cooling function, the main part is composed of a radiator, a water pump, a cooling fan, a water temperature regulator.

The water pump is a device for circulating the cooling water, mostly using a centrifugal pump.

3 is a cross-sectional view of a water pump of a water-cooled engine according to the prior art, and includes a pulley bracket 50, a bearing shaft 52 mounted on the pulley bracket 50, a bearing 54, and the bearing shaft ( 52, a mechanical seal 58 for enclosing the cooling water in the pump chamber 56 by surrounding the periphery of the bearing shaft 52, and a pump incorporating these components. The body 60 is included.

4 is a cross-sectional view taken along the line IV-IV of FIG. 3, and above and below the pump body 60, water vapor generated from the pump body 60 leaks from the mechanical chamber 58, and temporarily leaks into the leak chamber 61. FIG. An upper discharge passage 62 and a lower discharge passage 64 for discharging the stored moisture are formed.

In the water pump of the water-cooled engine configured as described above, the bearing shaft 52 rotates while being supported by the bearing 54 by the rotational force of the pulley bracket 50.

In addition, as the impeller 55 mounted at one end of the bearing shaft 52 rotates, the coolant is introduced into the pump chamber 56 to circulate the coolant in the water jacket provided in the cylinder block and the cylinder head of the engine. It works.

In this way, when the impeller 55 rotates to supply the cooling water, leakage occurs between the contact surface between the mechanical chamber 58 and the bearing shaft 52, and the cooling water is temporarily stored in the leakage chamber 61.

Accordingly, water vapor is generated in the pump body 60, and the water vapor is discharged into the upper discharge passage 62 and the lower discharge passage 64 formed above and below the pump body 60, or as cooling water. In addition, a portion of the bearing 54 flows into the sliding part.

[Problems to Be Solved by the Invention]

In order to discharge the steam generated in the pump body, foreign substances flowing into the upper and lower discharge passages formed vertically above and below the pump body, and cooling water leaked from the mechanical chamber flow into the sliding part of the bearing, and the bearing is worn. There is a problem that the life of the water pump is shortened.

[Means to solve the problem]

The present invention is devised to solve the above problems, the purpose of the present invention is to block the inflow of foreign matter into the pump body of the water pump, and also to introduce the water vapor generated in the pump body into the sliding part of the bearing It is to provide a water pump of the water-cooled engine to block the water, and to smoothly flow out to prevent damage of the bearing to extend the life of the water pump.

In order to realize this, the present invention provides a water pump including a pump chamber for supplying cooling water, a leak chamber in which leaked coolant is temporarily stored, and a mechanical seal blocking the pump chamber and the leak chamber. The water pump of the water-cooled engine, characterized in that it comprises an upper discharge passage configured in the upper portion, a lower discharge passage configured in the lower portion, and a steam blocking portion for preventing the steam in the leakage chamber from flowing into the bearing sliding portion.

The upper discharge passage is formed horizontally in the pump body, the lower discharge passage is characterized in that it is formed slightly inclined with respect to the horizontal.

The steam blocking part further comprises an absorption ring for absorbing the leaked water vapor and converting it into cooling water, and a plate for blocking the water vapor from being absorbed into the bearing sliding part.

[Action]

As the bearing shaft rotates by the driving force of the pump pulley, an impeller mounted at one end of the bearing shaft rotates to supply the coolant to the water jacket provided in each engine.

At this time, the water leaked from the mechanical chamber is converted into water vapor by surrounding heat.

Since the upper discharge passage is provided horizontally, the inflow of foreign substances is blocked and at the same time, the water vapor in the leak chamber is smoothly discharged.

Since the lower discharge passage is inclined with respect to the vertical direction, the liquid coolant flows out more smoothly.

The absorption ring of the vapor blocking part absorbs the water vapor of the leak chamber and converts it into the liquid cooling water. The cooling water converted into the liquid phase flows out into the lower discharge passage, and the water vapor not absorbed by the absorption ring evaporates into the upper discharge passage.

And the plate of the steam blocker blocks the cooling water absorbed in the absorption ring does not enter the sliding part of the bearing.

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

EXAMPLE

1 is a cross-sectional view of a water pump of a water-cooled engine according to the present invention, a pulley bracket (2) for providing a power source to the water pump, a bearing shaft (4) mounted on the pleated bracket (2), and this bearing It consists of a bearing 6 supporting the shaft 4, an impeller 8 mounted on one end of the bearing shaft 4, and a pump body 10 including these constituent members.

The pump body 10 includes a pump chamber 12 for supplying cooling water, a leak chamber 14 in which cooling water leaked from the pump chamber 12 is temporarily stored, and between the pump chamber 12 and the leak chamber 14. And a mechanical seal 16 for blocking the coolant.

FIG. 2 is a sectional view taken along the line II-II of FIG. 1, showing the timing belt cover 17 and the cut pump body 10. As shown in FIG.

The pump body 10 is provided with an upper discharge passage 18 for discharging the water vapor of the leak chamber 14 in the upper portion, and a lower discharge passage 20 for discharging the liquid cooling water in the lower portion.

The upper discharge passage 18 is configured in a horizontal direction to prevent inflow of dust or foreign matter, and the lower discharge passage 20 is inclined downward to smoothly flow out the cooling water changed into a liquid phase. .

In the leak chamber 14 described above, the coolant collected and leaked from the pump chamber 12 to the mechanical chamber 16 and the steam blocking part 22 for blocking steam of the coolant from flowing into the sliding part of the bearing 6 are provided. Is provided.

The vapor delivery section 22 absorbs water vapor in the leak chamber 14 and converts it into liquid cooling water, and the water vapor and cooling water absorbed in the absorption ring 24 are moistened in the bearing 6. The plate 26 is configured to block the flow into the eastern part.

In the water pump of the water-cooled engine configured as described above, the pulley braze jet 2 and the bearing shaft 4 are driven by the power source provided.

As the bearing shaft 4 rotates, the impeller 8 mounted on one end of the bearing shaft 4 rotates to supply cooling water to the water jacket of the engine to cool the engine.

In this way, the coolant leaks between the pump chamber 12 and the mechanical chamber 16 located between the leak chamber 14 while the water pump is operating.

Therefore, a part of the water vapor collected in the leak chamber 14 is discharged to the upper and lower discharge passages (18, 20), and the water vapor not leaked out so as to be in contact with the steam blocking portion 22 built in one side of the leak chamber (14). do.

At this time, the upper discharge passage 18 is provided horizontally (FIG. 2) to block inflow of dust or foreign matter.

In addition, the absorption ring 24 of the steam blocking unit 22 absorbs the vapor that is not evaporated and converts the cooling water into liquid cooling water. The plate 26 of the steam blocker 22 then blocks the converted coolant from entering the sliding part of the bearing 6.

In addition, the cooling water converted into the liquid phase by the absorption ring 24 is discharged to the outside via the lower discharge passage (20).

[Effect of design]

As described above, the water pump of the water-cooled engine according to the present invention blocks the inflow of foreign substances into the pump body, blocks the water vapor remaining in the leak chamber in the pump body into the sliding part of the bearing, and smoothly Since it leaks out, the damage of a bearing can be prevented and the life of a water pump can be extended.

Claims (2)

A water pump of a water cooling engine including a pump chamber 12 for supplying cooling water, a leak chamber 14 in which leaked coolant is temporarily stored, and a mechanical chamber 16 for blocking the pump chamber 12 and the leak chamber 14. The upper discharge passage 18 formed in the upper portion of the leak chamber 14, the lower discharge passage 20 formed in the lower portion of the leak chamber 14 on the opposite side of the upper discharge passage 18, Absorption ring 24 for absorbing and converting the water vapor leaked in the leakage chamber 14 into cooling water so as to block the flow of the steam in the leakage chamber 14 into the bearing sliding portion, and absorbed in the absorption ring 24 Water pump of a water-cooled engine comprising a plate (26) for preventing the water vapor flowing into the bearing sliding portion. The water pump of claim 1, wherein the upper discharge passage (18) is formed horizontally on the pump body (10), and the lower discharge passage (20) is formed to be slightly inclined with respect to the horizontal.