KR101241635B1 - Water pump sealing device from water leak - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water pump leak prevention apparatus, and in particular, a coolant partition is installed inside a water pump, and a coolant suction pipe is installed in an adjacent area thereof, so that the inside of the coolant partition is absorbed by the adsorption pressure of the engine and the adsorbent material in the coolant suction pipe. The primary stored coolant is discharged to the cooling water suction pipe side to be stored secondly, and the secondary stored cooling water in the cooling water suction pipe is extinguished by evaporation, so that the cooling water does not leak to the outside of the water pump, thereby reducing claims due to water pump leakage. And a water pump leak prevention device capable of increasing the durability of the pump.

Description

WATER PUMP SEALING DEVICE FROM WATER LEAK}

1 is a partial cutaway perspective view showing a conventional water pump structure,

2a and 2b is a view showing the structure of a water pump leak prevention apparatus according to the present invention.

Description of the Related Art

1: engine cylinder block 3: water pump pulley

5: mechanical seal 7,13: drain hole

11: water pump housing 20: cooling water partition

30: cooling water suction pipe

The present invention relates to a water pump leak prevention apparatus of a vehicle, and in particular, by installing a coolant partition wall inside the water pump, and installing a coolant suction pipe at an adjacent portion thereof so that the water pump coolant does not leak to the outside, The present invention relates to a water pump leak prevention apparatus capable of reducing the claim and increasing the durability of the pump.

1 is a partial cutaway perspective view showing a conventional water pump structure.

As shown, in an internal combustion engine having a water-cooled cooling system, a water pump is generally mounted at the center and side of the engine cylinder block 1 to obtain a rotational force by driving the crankshaft to pump the coolant, and the cylinder block 1 and The coolant is supplied to the cylinder head to circulate the coolant. In the figure, reference numeral 3 denotes a water pump pulley and reference numeral 9 denotes a timing belt drive.

Since the water pump always operates in an environment in direct contact with the coolant, a component called a mechanical seal 5 is applied for the purpose of sealing the coolant in order to prevent bearing failure and belt life shortening due to leakage of the coolant inside the water pump. do.

The mechanical seal 5 is press-fitted to the water pump shaft and prevents the coolant inside the water pump from leaking to the outside while keeping a very small amount of coolant on the sliding surface. In addition, a water drain hole 7 is provided in the water pump body to secondarily prevent fine dust such as water vapor from passing through the sliding surface of the mechanical seal 5 into the bearing or the like.

The mechanical seal 5, which functions as a seal of the water pump, performs a seal function while sliding a very small amount of coolant through lubrication, so that some coolant flows out. At this time, the cooling water is discharged in the form of water vapor, which is discharged to the outside of the water pump in a liquid state according to the rotational conditions of the engine and other environments, which damages the appearance of the engine, and in serious cases, contaminates various belts to shorten the durability of the water pump.

In particular, when the drain chamber is not mounted, the cooling water (water vapor) passing through the mechanical seal 5 is discharged downward through the drain hole 7 in the water pump body. At this time, the discharged cooling water immediately falls on the timing belt or other belts that give the driving force of the water pump, which shortens the life of the belt, and may cause failure of the driving parts in the belt.

On the other hand, when the drain chamber is mounted, most of the drain chamber shape is similar, there is a concern that the application of patent infringement may occur, and there is a problem in that you must pay the royalties for use.

In addition, since the post-processing process has to be added in order to apply the drain chamber, there is a problem that the processing cost and the material cost increase accordingly, which causes the cost increase.

Accordingly, the present invention is to solve the above-described problems, the cooling water partition wall is installed in the water pump housing, the cooling water suction pipe is installed in the outer adjacent area, the cooling water stored in the cooling water partition wall exiting the mechanical seal By discharging and dissipating to the outside of the cooling water intake pipe by using the engine suction pressure, it is possible to actively leak the cooling water of the water pump, and to reduce the claims due to the water pump leakage and increase the durability of the pump. An object of the present invention is to provide a water pump leak prevention apparatus.

As described above, an object of the present invention is to provide a coolant partition wall behind a mechanical seal of the water pump, and to cool the water leaked from the mechanical seal to an adjacent portion of the water pump housing in which the coolant partition wall is installed by an engine pressure. This is achieved by the installation of a coolant suction pipe which exits outwards.

The coolant suction pipe of the present invention has a round part configured to surround the water pump housing in which the coolant partition wall is installed, and the suction part having a roughly T shape in which an end of the round part is connected in the middle and an upper end thereof is connected to the surge tank by a hose. It is desirable to have a pipe.

A sponge, which is an adsorbent material, may be inserted into the cooling water suction pipe to allow the cooling water stored inside the cooling water partition to be sucked in.

Hereinafter, preferred embodiments for effectively achieving the object of the present invention will be described in detail with reference to the accompanying drawings, the technical configuration and effect.

Figure 2a is a perspective view of a water pump leakage preventing device according to the present invention, a partial cutaway perspective view showing a partially cut around the installation portion of the cooling water partition,

FIG. 2B is a schematic cross-sectional view showing the internal configuration of the coolant suction pipe in FIG. 2A.

As shown, the water pump leak prevention apparatus of the present invention, a separate cooling water partition wall 20 is installed behind the mechanical seal of the water pump, the outer adjacent to the water pump housing 11 in which the cooling water partition wall 20 is installed. The cooling water suction pipe 30 is installed in the portion.

The cooling water suction pipe 30 has a rounded portion 31 bent in a form surrounding the housing 11 at the bottom of the water pump housing 11, and a straight portion 33 having an upper end connected to a surge tank and a hose is T. It is a form that is combined in the shape of a ruler. The round part 31 inserts an adsorbent material, for example, a sponge 35, into the round part 31 so that the stored coolant inside the coolant partition wall 20 is discharged to the straight part 33 side of the coolant suction pipe.

In addition, a first drain hole 13 is formed on the inner water pump housing 11 of the cooling water partition wall 20 and leaks from the mechanical seal (5 in FIG. 1). It will exit to the suction pipe 30 side.

On the other hand, in the above structure, the coolant leaked from the mechanical seal is concentrated inside the coolant partition wall 20 installed at the rear of the primary, but when the amount of coolant leakage increases and exceeds the coolant partition wall 20, the second drain hole (not shown) It should be leaked to the outside through C) so that the user can check the abnormal operation of the water pump with the naked eye.

The operation of the water pump leak prevention apparatus of the present invention configured as described above will be described.

First, when the engine is started, the suction pressure is formed in the cooling water suction pipe 30 connected to the surge tank and the hose.

The coolant stored primarily inside the coolant partition wall 20 by the capillary action of the sponge 35 inserted into the round part 31 of the coolant pipe 30 and the bottom of the coolant through the first drain hole 13 by the help of the engine suction pressure. Is sucked into the coolant pipe round portion 31.

Cooling water exited through the suction pressure of the engine and the sponge 35 is secondary storage up to a predetermined amount in the lower section of the straight portion 33 of the cooling water intake pipe.

When the amount of coolant leakage rapidly increases and exceeds the secondary storage amount, the engine absorption pressure does not act inside the water pump housing 11, and performs only the primary storage function inside the coolant partition wall 20. If the amount of coolant leakage increases and exceeds the coolant partition wall 20, the coolant leaks to the outside through a second water drain hole (not shown) to warn the user that there is an abnormal operation of the engine.

Therefore, the water pump leak prevention apparatus of the present invention is an active technique for removing even a small amount of cooling water inside the water pump housing by using the absorption of the engine, and compared to the conventional technology that the leaked coolant is mainly stored naturally. You can see that it is a very active technology.

As described above, the water pump leak prevention apparatus according to the present invention is provided with a coolant partition wall in the water pump, a coolant intake pipe is installed in the adjacent area by the adsorption of the engine and the adsorbent material in the coolant suction pipe, By discharging the first stored coolant inside the cooling water suction pipe side to be stored as a secondary, and the second stored coolant in the cooling water suction pipe is extinguished by evaporation, so that the coolant does not leak to the outside of the water pump leaks Reduces claims and increases durability of pumps.

Claims (4)

A water pump leak prevention device for preventing the leakage of cooling water from the water pump, Cooling water partition is installed behind the mechanical seal of the water pump, A coolant suction pipe for adhering the coolant leaked from the mechanical seal to the outside of the water pump by the engine suction pressure in an adjacent portion of the water pump housing in which the coolant partition is installed; The coolant suction pipe is; The rounded part bent in a form surrounding the water pump housing in which the cooling water partition wall is installed, and the upper end is a T-shaped suction pipe consisting of a straight part connected to the surge tank by an upper end thereof. Water pump leak prevention device. delete The method according to claim 1, Water pump leakage preventing device, characterized in that the absorbent material is inserted into the inside of the cooling water suction pipe. The method according to claim 1, And a first water drain hole through which the coolant flows out at a bottom of the water pump housing in which the coolant inside the coolant partition wall is primarily stored.

Images