JPH0144889B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a mounting device for an oil filter and an oil cooler mounted on a cylinder block of an internal combustion engine.

It is generally well known that in internal combustion engines for automobiles, oil filters and oil coolers are attached to the cylinder block in order to properly lubricate and cool various parts of the engine.

A conventional oil filter and oil cooler mounting device is disclosed in, for example, Japanese Patent Laid-Open No. 104511/1983.

This uses a single mounting bracket with a built-in lubricating oil passage to mount the oil filter and oil cooler together.

However, with such conventional mounting devices, the mounting bracket is attached to the cylinder block with multiple bolts, and the oil filter is attached to this mounting bracket via stud bolts, so the mounting bracket and The oil filter must be screwed on separately, making installation complicated. Also, since the shape of the attachment part of the mounting bracket to the cylinder block is different from the shape of the oil filter mount part, it is not possible to attach the oil filter directly to the cylinder block when an oil cooler is not required, so an adapter specifically designed for the oil filter must be used. The problem was that it was necessary.

This invention was made by focusing on these conventional problems, and aims to provide an oil filter and oil cooler mounting device that simplifies the mounting structure and can be easily used depending on the application. With the goal.

To this end, in the present invention, a mounting seat is integrally formed in the cylinder block through which the main gear lary and suction gear lary for engine lubricating oil open, and a plurality of lubricating oil passages communicating with each of the gears are formed inside the mounting seat. The adapter for connecting the oil cooler, which also has two lubricating oil passages on the inlet side and the outlet side, is installed using a stud bolt that passes through the approximate center of the adapter, while the other end of the stud bolt An oil filter is screwed onto the threaded portion so that it communicates with a predetermined lubricating oil passage of the adapter and stud bolt, so that the adapter for connecting the oil cooler and the oil filter can be attached to one common stud bolt. be done.

Hereinafter, one embodiment of the present invention will be described based on the drawings.

As shown in FIGS. 1 and 2, first, a mounting seat 4 is integrally formed on the side surface of the cylinder block 1, in which a main gear lary 2 and a suction gear lary 3 for engine lubricating oil are opened adjacent to each other.

An adapter 5 for connecting an oil cooler, which will be described later, is attached to the mounting seat 4 by a stud bolt 6 that is threaded at both ends and passes through the approximate center of the adapter 5.

That is, a hexagonal flange 7 is formed on the outer periphery of the intermediate portion of the stud bolt 6, and this flange 7 allows the adapter 5 to be attached to the main gear rally 2 with one end threaded portion 8A of the stud bolt 6 opening into the mounting seat 4. When it is screwed onto the cylinder block 1, it is clamped against the cylinder block 1.

The adapter 5 has a lubricating oil discharge passage 10A to an external oil cooler 9 (air-cooled type) therein;
Similarly, the inflow passage 10B from the oil cooler 9,
A supply passage 10C is formed to supply lubricating oil from the suction gear 3 to the suction side of an oil filter 11, which will be described later, and furthermore, when the oil filter 11 is clogged, the oil filter 11 is bypassed. oil filter relief passage 10D that flows the lubricating oil to the oil cooler 9.
Then, when the oil cooler 9 becomes clogged, an oil cooler relief passage 10E is formed that bypasses the oil cooler 9 and allows the lubricating oil to flow to the main gear rally 2. In FIG. 2, 12A and 12B are relief valves installed in the relief passages 10D and 10E.

Further, the lubricating oil discharge passage 10A has a mounting bolt 13A having an oil passage built into its discharge port 10a.
The lubricating oil inlet passage 10B is connected to the inlet passage 9A of the oil cooler 9 via a hose 14A connected to the hose 14A, while the lubricating oil inlet passage 10B is connected to the inlet port 10b of the hose 14A by a mounting bolt 13B which also has an oil passage built in. It is connected to the outlet side passage 9B of the oil cooler 9 via 14B.

On the other hand, inside the stud bolt 6 mentioned above,
As shown in FIG. 3, there is a lubricant inlet passage 15A that communicates the lubricant discharge passage 10A of the adapter 5 with the discharge side of the oil filter 11, and a lubricant inlet passage 15A that communicates the lubricant inlet passage 10B of the adapter 5 with the cylinder block 1. Lubricating oil outlet passages 15B communicating with the main gear rally 2 are formed in tandem in the axial direction via the partition wall 16. In the figure, 17A and 17B are respective communication holes.

The other end threaded portion 8 of this stud bolt 6
The above-mentioned oil filter 11 is screwed onto B such that its suction port 18A communicates with the lubricating oil supply passage 10C of the adapter 5 and its discharge port 18B communicates with the lubricating oil inlet passage 15A of the stud bolt 6.

In the figure, 19 is an O-ring and 20 is a washer. Further, 21A is an auxiliary screw hole, and 21B is a bolt insertion hole thereof. In addition, 22 is an auxiliary oil filter relief passage formed in the cylinder block 1, and 23 is its blank plug.

Due to this configuration, lubricating oil discharged from an oil pump (not shown) is first supplied from the suction gearing 3 to the oil filter 11 through the suction port 18A via the lubricating oil supply passage 10C of the adapter 5. After the deposits such as dust, carbon, and abrasion particles in the oil are filtered out and the oil becomes clean, the lubricating oil inlet passage 1 of the stud bolt 6 is opened from the discharge port 18B.
5A and the communication hole 17A, the lubricating oil is introduced into the lubricating oil release passage 10A of the adapter 5, and from this the hose 14
The oil is supplied to the oil cooler 9 via A. After being cooled by a predetermined means (running air), the lubricating oil is introduced into the lubricating oil inlet passage 10B of the adapter 5 via the hose 14B, and is connected to the communication hole 17B of the stud bolt 6 and the lubricating oil outlet passage 15B.
It is then sent to the main gear gallery 2, where it is used to lubricate and cool various parts of the engine. Of course, after lubrication, the oil returns to the oil pan and is sucked into the oil pump again.

In this way, the deposits in the lubricating oil are filtered by the oil filter 11 and then sent to the oil cooler 9, so that the deposits do not accumulate in the oil cooler 9 and there is no reduction in heat dissipation efficiency. is well cooled. As a result,
Prevents deterioration of lubricating oil and wear and seizure of various parts of the engine.

In addition, since the lubricating oil is not cooled and is sent to the oil filter 11 with a low viscosity, the oil pressure upstream of the oil filter 11 does not increase, and therefore the relief valve 12A installed in the oil filter relief passage 10D does not open. The entire amount of oil is sent to the oil filter 11, and deposits in the oil are completely removed.

In this embodiment, the adapter 5 is fixed with a single stud bolt 6, and the oil filter 11 is further attached, so that the attachment workability is further improved by simplifying the attachment device.

Furthermore, when the oil cooler 9 is not required, the oil filter 11 can be directly mounted on the mounting seat 4 by eliminating the adapter 5 and stud bolt 6 and using a short stud bolt 6' as shown in FIG. This makes it easy to use them properly. In this case, a relief valve 12A is installed in the oil filter relief passage 22 on the cylinder block 1 side instead of the blind plug 23.

Of course, since the number of parts is reduced in conjunction with the above-mentioned improvement in attachability, it is more effective in terms of cost.

As explained above, according to the present invention, the adapter for connecting the oil cooler and the oil filter are attached using a single common stud bolt, which simplifies the device and makes it easy to use it according to the purpose. You can get the effect that you can.

[Brief explanation of drawings]

FIG. 1 is an exploded perspective view of an embodiment of the present invention, and FIGS. 2 and 3 are a sectional view and a half sectional view of essential parts thereof. FIG. 4 is a sectional view of another embodiment of the invention. 1... Cylinder block, 2... Main gear rally, 3... Suction gear rally, 4... Mounting seat,
10A to 10E... Lubricating oil passage, 9... Oil cooler, 5... Adapter, 15A, 15B... Lubricating oil passage, 6... Stud bolt, 8B... Other end threaded portion, 11... Oil filter.

Claims (1)

[Claims] 1. An oil cooler connection in which a cylinder block is integrally formed with a mounting seat through which the main gear and suction gear for engine lubricating oil open, and this mounting seat has a plurality of lubricating oil passages that communicate with each of the gears described above. The adapter for the adapter is installed via a stud bolt with threads on both ends that also has two lubricating oil passages on the inlet side and the outlet side inside the adapter and is inserted through the approximate center of the adapter,
A mounting device for an oil filter and an oil cooler, characterized in that an oil filter is screwed onto the threaded portion of the other end of the stud bolt so as to communicate with a predetermined lubricating oil passage of the adapter and the stud bolt.