JPS5813730B2 - Oil filter for lubricating oil circulation supply system in internal combustion engine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an oil filter for a lubricating oil circulation supply device in an internal combustion engine.

Generally used in internal combustion engines, especially automobile engines. As shown in FIG. 1, the oil filter of the lubricating oil circulation supply device used in the present invention employs a so-called cartridge type oil filter 3 in which a case 1 and an element 2 are integrally constructed.

This oil filter 3 is widely used because it is easy to replace, but its purpose is to filter lubricating oil and does not have a cooling function or the like.

For this reason, the lubricating oil of the engine deteriorates early due to the rise in oil temperature, which may shorten the durability of the engine.

To deal with this, some vehicle models are equipped with a separate oil cooler, but adding an oil cooler increases costs.

Furthermore, since the case 1 is formed of a thin plate, the oil filter 3 may be damaged by flying stones or the like.

The present invention was made in view of the above circumstances, and the following:
One embodiment thereof will be explained based on the drawings.

FIG. 2 shows a part of a water-cooled automobile engine 10 including an oil filter F according to the present invention. There is.

Further, a recess R, which constitutes a part of the oil filter F, is integrally formed on the outer wall side of the cylinder block 11 with the opening facing the side.

The cover 14 is fluid-tightly attached to the opening of the recess R via a seal ring 15 and detachably attached with several bolts 16 (only one is shown in the figure).
The wall 17 forming the recess R constitutes a case C of the oil filter F.

The wall 17 forming the recess R exposes approximately the upper half of its outer surface into the water jacket 13, and this exposed portion has a large number of holes as shown in FIGS. 2 and 3. Cooling fins 17a to 17a are provided in a protruding manner.

The element 20 is a filter paper 2 equipped with a relief valve 21.
2 types, and a seat 18 provided at the center bottom of the recess R.
It is assembled into the case C via a seal ring 19, and is biased toward the seat 18 by a coil spring 23 whose one end is locked to the inner wall of the cover 14, and is built into the case C so as to be replaceable.

In addition, in the figure, the reference numeral 31 indicates the inlet of the oil filter F connected to the passage 32, and the reference numeral 33 indicates the inlet of the oil filter F connected to the passage 34.
shows the outflow port.

In this embodiment configured in this way, the lubricating oil enters the case C from the inlet 31 through the passage 32, flows along the inner surface of the wall 1T as indicated by the arrow in FIG. passes through the filter paper 22 or the relief valve 21 (which opens when the cap 22 becomes clogged and the flow path resistance of the cap 22 increases), flows from the outlet 33 to the passage 34, and circulates through each part of the engine 10. .

However, in this embodiment, a large number of cooling fins 1
Since the outer surface of the wall 1T provided with 7a to 1γa is exposed to the water jacket 13 and is constantly cooled by the cooling water flowing inside the water jacket 13, part of the heat of the lubricating oil flowing along the inner surface of the wall 17 is The lubricating oil is transmitted to the cooling water through the wall 17 and carried away to the outside, thereby effectively cooling the lubricating oil.

This suppresses deterioration of the lubricating oil and improves the durability of the engine 10.

In addition, in the oil filter F configured as described above,
The case C is connected to the cylinder block 1 that forms the recess R.
1 wall 17 and cover 14 and are relatively strong, damage caused by flying stones etc. can be reduced.

In summary, in the present invention, as exemplified in the above embodiment, the cylinder block 11 constituting the engine 10
A recess R is formed in a part of the recess R, and a cover 14 is provided in a liquid-tight and removable manner at the opening of the recess R to constitute a case C,
The element 20 is replaceably built into this case C,
On the other hand, its main structural feature is that the outer surface of the wall 17 forming the recess R is exposed inside the water jacket 13 provided in the cylinder block 11. The oil filter can be configured compactly.

[Brief explanation of drawings]

FIG. 1 is a partially longitudinal side view of an automobile engine including a conventional oil filter, FIG. 2 is a partially longitudinal side view of an automobile engine including an oil filter according to the present invention, and FIG. FIG. Explanation of symbols, 10... Automobile engine, 11... One cylinder bronc, 13 Note... Water jacket, 14... Cover, 1T... Wall of cylinder block forming surface area, 2
0 wealth...Element, C...Case, F...Oil filter,
R...Recess.

Claims (1)

[Claims] 1. A recess is formed in a part of the cylinder block that constitutes an internal combustion engine, and a cover is provided at the opening of this recess in a liquid-tight manner and removable to form a case, and elements can be replaced within this case. An oil filter for a lubricating oil circulation supply system in an internal combustion engine, which is built-in and has an outer surface of a wall forming the four locations exposed in a water jacket provided in the cylinder block.