JPS588927Y2 - engine oil pan device - Google Patents

Description

[Detailed description of the invention] This invention relates to an oil pan device for an engine, particularly an oil pan device for an automobile engine, which has a sound insulating structure in the front of the vehicle.

The oil pan is attached to the bottom end of the cylinder block and has a relatively thin wall, so it is the part where the engine shift sound leaks outside.

Therefore, there is a way to cover the oil pan with a sound insulating cover.
One oil pan has a guide tube for an oil level gauge, a mounting boss for an oil filter (a connecting pipe), an oil inlet, etc. protruding from the side wall, and a hole for draining oil is provided at the bottom. The hole is closed by the plug 1 that protrudes from the outside, so make sure to fit it from below (by inserting the sound insulating cover that covers the oil pan body (this is large so that it does not interfere with other parts except the plug at the bottom). Cutouts must be provided in the side wall portions, and these cutouts do not provide sufficient sound insulation.

In view of this, the present invention provides an oil pan device for an engine in which the oil pan body can be completely covered by a sound insulating cover. A boss with a height equal to or slightly lower than the depth of this recess (thus formed) is used to secure attached equipment, piping, etc. to the mounting seat, and each mounting seat is provided with a threaded hole that leads into the oil pan. For the installation of connected equipment, piping, etc., use a screw member that is screwed into the screw hole, and the sound insulation cover that covers the oil pan body is provided with a window hole corresponding to the mounting seat. After installing the sound insulation cover, use the mounting seat and screw member through the window hole,
After connecting the connected equipment and piping, etc., after connecting each equipment and piping, etc., the gap between the inner edge of the window hole through which they penetrated was sealed with a sealing member]. It is something.

To explain the embodiment of the present device with reference to the drawings, Fig. 1 shows a longitudinal cross-sectional view with only a sound insulating cover attached, and Fig. 2 shows an enlarged longitudinal cross-sectional view of main parts with an oil level gauge guide tube etc. attached. The present device shown in FIG. be.

The mounting seat 4 is a mounting seat for an oil level gauge unit 6, and the mounting seat 5 is a mounting seat for a vacation rental pipe 7 from an oil filter (not shown).

Both of the mounting seats 4 and 5 are shaped by a boss having a height equal to or slightly lower than the depth of the recess 3,
It has an 8°9 screw hole that connects to the inside and outside of the oil pan.

Furthermore, the mounting seat 5 is provided with an air pipe 1 that communicates with a guide tube 10 that forms a part of the oil level gauge unit 6.
A hole 12 for one connection is provided.

The oil level gauge unit 6 is connected to the guide tube 1
An oil chamber 141 is formed inside the boss part 13 to which 0 is attached,
This oil chamber 14 and the inside of the guide tube 10 are communicated with each other.

The boss portion 13 is attached to the mounting seat 4 by screwing the tubular bolt 15 that passes through the boss portion 13 into the screw hole 8 and tightening.

If oil leaks between the boss part 13 and the mounting seat 4, check the backing 1.
6 (This is to prevent it.

The bolt 15 has a hole 18 that directly communicates the oil chamber 14 with the inner part of the open center hole 17 at the leg end.

The oil in the oil pan body 1 is contained in the center hole 17 of the bolt 15.
It enters the oil chamber 14 through the hole 18, and then enters the guide tube 10, keeping it at the same level as the oil pan body 1.

Inside the guide tube 10 is an oil level gauge 19
is always charged.

On the other hand, as explained earlier, air constantly flows in the guide tube 10 and the oil pan body 1 via the air piping 11, making it possible to maintain equal pressure.

The private lodging piping 7 and the air piping 11 are attached to the mounting seat 5 via an adapter 20.

The adapter 20 is fixed to the mounting seat 5 by a tubular joint bolt 21, and the eye joint 22 is held between the head of the joint bolt 21 and the adapter 20.

The adapter 201 is provided with a joint bolt insertion hole 23 and a mounting hole 24 for the air pipe 11, in order to prevent oil leakage from the connection surfaces between these holes and the screw holes 9 and 12 of the mounting seat 5, respectively. Incorporates backing 25.26.

On the other hand, as shown in FIG. 1, the oil pan body 11 is fitted with a sound insulation cover 27 that covers the oil pan body by fitting from below. Window holes 28 and 29 are directly opposite to each other, and a hole 32 is provided which is directly opposite to a plug 31 that closes an oil drain opening 30 provided at the bottom of the oil pan body 1.

A sound insulating cover 27 is installed on the window holes 28 and 29 of the oil pan body 1.
] After installing the oil level gauge unit 6, attach the boss portion 13 of the oil level gauge unit 6 to the mounting seat 4 (when fixing the adapter 20).
When fixing the grommets 1-33 to the mounting seat 5,
34, and a grommet 35 is fitted into the hole 32.

The grommets 33 and 34 are sealing members that seal the gaps between the boss portion 13, the adapter 20, and the inner edges of the window holes 2B and 29, respectively, and the grommet 35 is a sealing member that seals the gaps around the plug portion.

The upper edge of the sound insulating cover 27 covering the oil pan body 1 is brought into close contact with the lower surface 1 of the flange 37 at the upper end of the oil pan body 1 via the backing 36, and the sound insulating cover 27 that covers the oil pan body 1 is brought into close contact with the lower surface 1 of the flange 37 at the upper end of the oil pan body 1 via the backing 36,
The bracket 38, which is fixed to the lower surface of the flange 31, and the bracket 39, which is fixed to the lower surface of the flange 31, are connected via a vibration isolator 40 and held in the attached state.

Since this project has one structure as described above, the oil pan body 1
When installing the sound insulation cover 27, the oil pan body 11
There are no parts other than the oil drain opening 30 at the bottom (there are no parts that protrude from the outside), so as long as you rub the sound insulation cover 27 from below to fit it into the oil pan body 1, the size of the sound insulation cover 27 will change. is very close to the oil pan body 1 (
It can be rubbed.

Sound insulation cover 271 that fits from below has window hole 28°29
The opening 30 at the bottom of the oil pan body 1 is inserted through the hole 32 and extends downward (though it protrudes through the window holes 28 and 29).
The mounting seats 4 and 51 respectively face the inside of the recess 3 of the oil pan main body 1.

Grommets 33 and 34 are installed in the window holes 28 and 29 and the hole 32 in advance.
．． 35, the opening 30 is attached to the grommet 3.
5 is pushed open to protrude, and the grommet 33 is brought into close contact with the mounting seat 4 (around the boss portion 13 of the oil level gauge unit 6 to be mounted).

Further, the grommet 34 is in close contact with the circumference of the adapter 20 to which the mounting seat 51 is attached.

The sound insulating cover 27, which has been fitted together as described above, is attached to the oil pan body 1 through the vibration isolator 40.
By bringing its upper edge portion into close contact with the lower surface of the flange 3T at the upper end of the oil pan body 1 via the backing 36, the outside of the oil pan body 1 is completely covered, and there is no part where noise leaks. becomes.

Since the boss portion 13 of the oil level gauge unit fixed to the mounting seat 41 is fixed by a bolt 15 having a center hole 17, it passes from the center hole 17 through the oil chamber 14 into the guide tube 10 and into the oil pan body 1. The oil of
Maintains the function of the oil level gauge.

Further, since the adapter 20 fixed to the mounting seat 5 is fixed by the tubular joint bolt 21, the distribution function of the private lodging can also be maintained.

Furthermore, the air pipe 11 is also connected to the adapter 20, and the upper part of the oil pan main body 1 and the upper part of the guide tube 10 are communicated through the hole 12 of the mounting seat 5, so the oil level gauge 1 is connected to the adapter 20. This prevents the piston phenomenon.

In the above embodiment, a recess is formed in the wall 2 of the oil pan main body 1 where the part 1 for fixing the mounting seats 4 and 5 is attached, but the part where the oil drain opening 30 is provided (even if it is recessed) can be applied.

As is clear from the above description, the present device is equipped with a sound insulating cover that covers the oil pan body, and an attachment that is attached to the oil pan body (regardless of the shape and size of the oil pan body). In particular, it has many positive points, such as eliminating any parts where there is a risk of noise leakage and enabling noise pollution-free operation.

[Brief explanation of drawings]

FIG. 1 is a longitudinal cross-sectional view showing an embodiment of the present device with only a sound insulating cover attached, and FIG. 2 is an enlarged longitudinal cross-sectional view of the main parts with an oil level gauge unit and the like attached. 1... Oil pan body, 2... Wall, 3... Concave 4° 5... Mounting seat, 6... Oil level gauge unit, 7... Private accommodation piping, 8, 9 ...Screw hole, 10
...Guide tube, 11...Air piping, 12...
- Hole, 13...Boss part, 14...Oil chamber, 15...
Bolt, 19... Oil level gauge, 20... Adapter, 21... Joint bolt, 21... Sound insulation cover, 28, 29... Window hole, 30... Mouth, 31
...Plug, 32...Length, 33°34.35...
・Grommet.

Claims (1)

[Scope of utility model registration request] A predetermined portion of the wall of the oil pan main body is recessed inward to form a recess, and a screw hole is formed by a boss with a height equal to or slightly lower than the depth of this recess and that communicates with the inside and outside of the oil pan. fix the mounting seat to the recessed wall,
[Fitting from the bottom of the oil pan] A sound insulation cover that covers the oil pan body (here, each of the above mounting seats) A corresponding window hole is provided, and after installing the sound insulation cover, the screw hole 1 of the mounting seat 1 is installed.
(screw member to be screwed into the engine) The gap between the equipment such as an oil level gauge unit or piping, etc. that is screwed together with this screw, and the inner edge of the window hole of the sound insulation cover through which these equipment or piping, etc. pass is hermetically sealed. Oil pan device.