KR19990030536U - Structure of oil pan to improve oil suction - Google Patents

Abstract

The oil pan is installed at the engine bottom of the vehicle to store oil. Especially, the oil pan improves the bottom structure of the oil pan so that the oil can be easily gathered to the oil intake pipe side at high speed of the engine to prevent air mixing. The structure of the oil pan to improve the suction, the flange 110 for mounting to the bottom of the cylinder block 20 of the engine, and the oil suction pipe 10 of the oil pumping device is located and at the same time to store and receive oil In the oil pan 100 having an oil storage space 120 for making;

The bottom surface 121 of the oil reservoir space 120 of the oil pan 100 has a plurality of inducing oil flow from the inner wall of the oil pan 100 to the place where the oil suction pipe 10 is located. It is characterized in that the oil induction rib 122 is disposed.

Description

Structure of oil pan to improve oil suction

The present invention relates to an oil pan installed at the engine bottom of a vehicle to store oil. In particular, the bottom structure of the oil pan is improved to allow oil to easily collect at the oil intake pipe side at high speed of the engine, thereby preventing air mixing. It is related to the structure of the oil pan to improve the oil suction.

In the case of a vehicle engine, oil is used for lubrication and cooling of each sliding part, and the oil is pumped from the oil pan to circulate the cylinder block and the cylinder head.

That is, the oil circulation pumps the oil contained in the oil pan 100 with the oil pump mounted on the crankshaft pulley side and pumps the oil into the two oil passages through the oil suction pipe 10. One oil passage lubricates the crankshaft journal bearing, connecting rod bearing, piston, piston ring and cylinder wall, while the other oil passage lubricates the cylinder block 20 and cylinder head 30 as shown in FIG. Lubricates the rocker arms, valves, camshafts, and the like, through the oil holes of the rocker arm shafts, and freely falls to the oil level in the oil pan 100 through the drain holes 20A of the cylinder block 20. do.

As such, the oil returned to the conventional oil is maintained by the operation of the oil pump to maintain the oil level, so that the oil accumulated in the oil pan 100 is raised to the oil suction pipe 10.

However, as shown in FIG. 2, when the engine is rotated at a high speed because the bottom surface of the oil pan 100 is wide, oil may be insufficient around the oil suction pipe 10.

That is, when the engine rotates at a high speed, the oil falling into the oil pan 100 does not quickly gather around the suction pipe 10, and thus a lack of oil suction occurs.

Therefore, in such a situation, air is mixed during oil intake, resulting in a drop in oil pressure and aeration, resulting in damage to the lubrication system, in which tappet noise is generated, oil pumps and various bearings are stuck.

Here, the aeration refers to the formation of micro bubbles in the oil, and the oil containing these bubbles is pressurized by various journal bearings, ie, crank shafts or cam shaft bearings, and the bubbles burst to generate high pressure locally. It means to damage the part and the shaft part.

The present invention is to solve the problems of the prior art as described above, by improving the bottom structure of the oil pan so that the oil can be easily collected to the oil intake pipe side at high speed of the engine to prevent oil intake to prevent air intake The purpose is to provide an oil pan structure for improvement.

Specific means of the present invention for achieving the above object, the oil having a flange for mounting on the cylinder block bottom of the engine, and an oil storage space for storing and receiving oil at the same time the oil suction pipe of the oil pumping device is located For a fan;

A plurality of oil guide ribs for guiding oil flow from the inner wall of the oil pan to the place where the oil suction pipe is located on the bottom surface of the oil reservoir space of the oil pan is characterized in that the excretion.

According to the above means, the oil supplied to the lubrication part of the engine falls into the oil pan through the cylinder block, and is guided by the oil induction rib to quickly gather into the oil suction pipe. The mixing of air can be prevented.

Therefore, it is possible to prevent the mixing of air during oil suction to prevent the drop of oil pressure and the occurrence of aeration, and to prevent the damage of the lubrication system that occurs tappet noise, oil pump and various bearings.

1 is a schematic engine diagram showing an oil flow in a conventional oil pan.

Figure 2 is a front cross-sectional view of another conventional oil pan.

3 is a plan view of an oil pan according to an embodiment of the present invention.

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

Explanation of symbols for the main parts of the drawings

10: oil suction pipe 20: cylinder block

100: oil pan 120: oil storage space

122: oil induction rib

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

3 and 4, the flange 110 for mounting on the bottom of the cylinder block 20 of the engine and the oil suction pipe 10 of the oil pumping device are positioned and the oil storage space for storing and receiving oil at the same time. In an oil pan (100) having a (120);

The bottom surface 121 of the oil reservoir space 120 of the oil pan 100 has a plurality of inducing oil flow from the inner wall of the oil pan 100 to the place where the oil suction pipe 10 is located. The oil induction rib 122 is disposed.

That is, the oil guide ribs 122 are disposed radially toward the inner wall of the oil pan 100 at the suction port side of the oil suction pipe 10.

Therefore, when the oil supplied to the lubrication portion of the engine falls through the cylinder block to the bottom surface 121 of the oil bottom space 120 of the oil pan 100, the oil narrows between the adjacent oil induction ribs 122. It is rapidly collected around the inlet of the oil suction pipe 10 along the opposite passage of the induction rib 122.

Therefore, even when the engine is driven at high speed, oil is quickly collected by the oil induction ribs 122 to the oil suction pipe 10, and thus, the engine is prevented from entering the air due to lack of oil in the suction pipe at high speed of the engine.

Therefore, it is possible to prevent the mixing of air during oil suction to prevent the drop of oil pressure and the occurrence of aeration, and to prevent the damage of the lubrication system that occurs tappet noise, oil pump and various bearings.

As described above, according to the present invention, the oil supplied to the lubrication part of the engine falls into the oil pan through the cylinder block, and is guided by the oil induction rib to quickly gather into the oil suction pipe, so that the oil is sucked into the suction pipe even at high speed of the engine. This lack can prevent air from mixing.

Therefore, it is possible to prevent the mixing of air during oil suction to prevent the drop of oil pressure and the occurrence of aeration, and to prevent the damage of the lubrication system that occurs tappet noise, oil pump and various bearings.

Claims (1)

An oil pan having a flange 110 for mounting on the bottom of the cylinder block 20 of the engine, and an oil storage space 120 for storing and receiving oil at the same time as the oil suction pipe 10 of the oil pumping device is located. In (100); The bottom surface 121 of the oil reservoir space 120 of the oil pan 100 has a plurality of inducing oil flow from the inner wall of the oil pan 100 to the place where the oil suction pipe 10 is located. The oil pan structure for improving oil suction, characterized in that the oil induction rib 122 is disposed.