JPH07208282A - Air cleaner of engine - Google Patents

Abstract

PURPOSE:To prevent performance of an engine from being deteriorated by preventing airtightness between a cleaner case of an air cleaner of the engine and a filter element from being deteriorated. CONSTITUTION:A seal means 4 is bonded and provided to at least one side of both ends 3, 3 of a filter element 2 of an air cleaner 1 of an engine. The filter element 2 is so constituted as to hold the seal means 4 in a cleaner case 5 of the air cleaner 1 while compressing it. A protrusion 6 is formed on a joint surface 4a of the seal means 4 to be bonded to the end 3 of the filter element 2. The protrusion 6 of the seal means 4 is so constituted as to be bonded to the end 3 of the filter element 2 while being fitted thereto.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an engine air cleaner.

[0002]

2. Description of the Related Art Some conventional engine air cleaners are constructed as follows, as shown in FIG. That is, at least one of both ends 3 of the filter element 2 of the engine air cleaner 1
For example, the sealing means 4 such as a rubber packing is attached to the adhesive 10
It is provided by adhering with. The filter element 2 is configured to be held in the cleaner case 5 of the air cleaner 1 while compressing the sealing means 4. In the cleaner case 5, an intake chamber 11, the filter element 2, a purifying chamber 12 and a purifying outlet 13 are provided in order. Further, the stay 14 is fixed to the cleaner case 5 so as to face the purification outlet 13 in the purification chamber 11, and the filter element 2 is fitted around the stay 14. Further, the lid 1 of the air cleaner 1
5 is fastened to the lid fastening portion 17 of the stay 14 by the fastening means 16 such as a wing bolt, so that the lid 15 presses the filter element 2 to compress the sealing means 4 and the filter element 2 Is held in the cleaner case 5. Incidentally, reference numeral 18
Is an element end fitting.

[0003]

The above-mentioned conventional techniques have the following problems. The sealing means 4 is provided by bonding the joint surface 4a to the joint surface 3a of the end portion 3 of the filter element 2 with an adhesive 10 or the like, and the cleaner case 5
It is clamped in via the filter element 2. If the packing is gradually displaced or peeled off due to tightening stress and heating when used for a long time at a high temperature due to engine operation, a gap is formed between the cleaner case 5 and the filter element 2 and airtightness is deteriorated. There is. For this reason, dust may enter the intake passage of the engine through the above-mentioned gap to wear the cylinder liner, the piston ring, etc., and deteriorate the engine performance. An object of the present invention is to prevent deterioration of airtightness between a cleaner case and a filter element and prevent deterioration of engine performance.

[0004]

In order to achieve the above object, the present invention adds the following improved structure to the above prior art, as shown in FIG. 1 or 2, for example. First invention (see FIG. 1) That is, the protrusion 6 is formed on the joint surface 4a of the sealing means 4 which is joined to the end 3 of the filter element 2. Then, the protruding portion 6 of the sealing means 4 is configured to be bonded to the end portion 3 of the filter element 2 while being fitted thereto. Second invention (see FIG. 1) In the engine air cleaner of the first invention, the protrusion 6 of the sealing means 4 is formed on the inner edge portion 7 of the sealing means 4.
Along the vertical direction Z of the joint surface 4a. Then, the protruding portion 6 is attached to the filter element 2
The inner side 8 of the end portion 3 is fitted and bonded. Third invention (see FIG. 2) In the engine air cleaner of the first invention, a recess 9 is formed on the joint surface 3a of the end 3 of the filter element 2.
And the projection 6 of the sealing means 4 is projected on the joint surface 4a of the sealing means 4 in the direction Z perpendicular to the surface. Then, the protruding portion 6 is configured to be bonded and fitted into the recess 9 of the end portion 3 of the filter element 2.

[0005]

The present invention operates as follows. Sealing means 4 is provided in the cleaner case 5 via the filter element 2.
The force for tightening the
On the other hand, it is divided into a vertical force and a horizontal force. The force in the vertical direction serves as a force for compressing the sealing means 4, and of the forces in the horizontal direction, the forces in the central direction of the cleaner case 5 interfere with each other and only the outward force remains, and the sealing means is left. Trying to push 4 toward the outer circumference.
Therefore, the protrusion 6 of the sealing means 4 is bonded to the inside 8 or the recess 9 of the end portion 3 of the filter element 2 while being fitted to receive the force for pushing the sealing means 4 in the outer peripheral direction. .

[0006]

The present invention has the following effects because it is constructed and operates as described above. Filter element 2
When the sealing means 4 is tightened via the, a force acts to push the sealing means 4 in the outer peripheral direction. The sealing means 4
The protrusion 6 is adhered to the inside 8 or the recess 9 of the end 3 of the filter element 2 while being fitted thereto, and receives the force for pushing the sealing means 4 in the outer peripheral direction. This prevents the sealing means 4 from being displaced or peeled off even when it is used for a long time in a high temperature state due to engine operation, and prevents a gap from being formed between the cleaner case 5 and the filter element 2 to reduce airtightness, It is possible to prevent deterioration of engine performance.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. 1st Invention and 2nd Invention Embodiments (see FIG. 1) FIG. 1A is a side sectional view of an engine air cleaner, FIG.
FIG. 3B is a sectional view of an essential part of adhesion between the filter element and the sealing means. In the figure, a sealing means 4 such as a rubber packing is attached to at least one of both ends 3 of a filter element 2 of an engine air cleaner 1 by an adhesive 10. In the cleaner case 5, an intake chamber 11, the filter element 2, a purifying chamber 12 and a purifying outlet 13 are provided in order. Further, the stay 14 is fixed to the cleaner case 5 so as to face the purification outlet 13 in the purification chamber 11, and the filter element 2 is fitted around the stay 14. further,
By fastening the lid 15 of the air cleaner 1 to the lid fastening portion 17 of the stay 14 by fastening means 16 such as a wing bolt, the lid 15 presses the filter element 2 to compress the sealing means 4. The filter element 2 is configured to be held in the cleaner case 5. Reference numeral 18 is an element end fitting.

A protrusion 6 is formed on the joint surface 4a of the sealing means 4 which is joined to the end 3 of the filter element 2.
And the projection 6 is formed on the filter element 2
While being fitted to the end portion 3 of the, it is adhered. Further, in the second invention, the protrusion 6 of the sealing means 4 is provided with the sealing means 4
It is configured to protrude along the inner edge portion 7 of the joint surface 4a in the direction perpendicular to the surface Z and to be bonded while being fitted to the inner side 8 of the end portion 3 of the filter element 2. The lid 15 of the air cleaner 1 is attached to the fastening means 16 such as a butterfly bolt.
The force for tightening the sealing means 4 through the filter element 2 in the cleaner case 5 by the tightening with the force acting in the sealing means 4 in the vertical direction and in the horizontal direction with respect to the joint surface 4a. Divide into two. The force in the vertical direction becomes a force for compressing the sealing means 4,
Of the forces directed in the horizontal direction, the forces directed toward the center of the cleaner case 5 interfere with each other, and only the outward force remains, so that the sealing means 4 tends to be pushed outward. By receiving the force of pushing out in the outer peripheral direction by fitting the projection 6 of the sealing means 4 and the inner side 8 of the end 3 of the filter element 2 to each other, it can be used for a long time in a high temperature state due to engine operation. Also, the sealing means 4 is not displaced or peeled off, and it is possible to prevent a gap between the cleaner case 5 and the filter element 2 from deteriorating airtightness.

Third Embodiment of Invention (See FIG. 2) FIG. 2 is a view corresponding to FIG. 1 (B). In the third invention,
In the engine air cleaner according to the first aspect of the present invention, the concave portion 9 is provided on the joint surface 3a of the end portion 3 of the filter element 2.
And the projection 6 of the sealing means 4 is projected on the joint surface 4a of the sealing means 4 in the direction Z perpendicular to the surface. Then, the projection 6 is configured to be bonded and fitted into the recess 9 of the end 3 of the filter element 2.

In the first to third embodiments of the invention, the sealing means 4 provided on at least one of the both ends 3 of the filter element 2 is not provided individually, but the upper end of the filter element 2 is replaced. It can be installed on both the bottom and bottom. Further, the protrusion 6 of the sealing means 4 and the recess 9 of the filter element 2 can be formed continuously or discontinuously so that they can be fitted to each other. Further, instead of the projection 6 of the sealing means 4 and the recess 9 of the end 3 of the filter element 2, the recess 9 is provided in the sealing means 4, and the end 3 of the filter element 2 is provided.
It is also possible to form the protrusions 6 on the respective surfaces.

[Brief description of drawings]

1 shows an embodiment of the first invention and the second invention, FIG.
(A) is a side sectional view of an engine air cleaner, FIG.
FIG. 3B is a sectional view of an essential part of adhesion between the filter element and the sealing means.

FIG. 2 shows a third embodiment of the invention and is a view corresponding to FIG.

FIG. 3 shows a conventional example and is a diagram corresponding to FIG.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Air cleaner, 2 ... Filter element, 3 ... End part, 4 ... Sealing means, 3a * 4a ... Joining surface, 5 ... Cleaner case, 6 ... Projection part, 7 ... Inner edge part, 8 ... Inner side, 9 ... Recessed part, Z … Vertical direction.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kozo Yoshida 64 Ishizukitamachi, Sakai City, Osaka Prefecture Kubota Sakai Co., Ltd. (72) Hideya Miyazaki 64, Ishizukitamachi, Sakai City, Osaka Prefecture Kubota Sakai Co., Ltd. ( 72) Inventor Shunichi Manba 64 Ishizukitamachi, Sakai City, Osaka Prefecture Kubota Sakai Co., Ltd.

Claims (3)

[Claims] 1. An engine air cleaner (1) is provided with a sealing means (4) adhered to at least one of both ends (3, 3) of a filter element (2), and the filter element (2) is provided with the air cleaner (2). In an engine air cleaner configured to hold the sealing means (4) while compressing it in the cleaner case (5) of (1), the sealing means (joined to the end portion (3) of the filter element (2) ( A protrusion (6) is formed on the joint surface (4a) of (4), and the protrusion (6) of the sealing means (4) is bonded to the end (3) of the filter element (2) while fitting. An air cleaner for an engine characterized by being configured as described above. 2. The projection (6) of the sealing means (4) is projected along the inner edge (7) of the sealing means (4) in the direction perpendicular to the plane (Z) of the joint surface (4a). , The projection (6) of which is the end of the filter element (2)
The engine air cleaner according to claim 1, wherein the air cleaner is configured to be bonded to the inside (8) of (3) while being fitted. 3. The end (3) of the filter element (2)
A concave portion (9) is formed on the joint surface (3a) of the sealing means (4), and the protrusion (6) of the sealing means (4) is perpendicular to the surface (Z) on the joint surface (4a) of the sealing means (4). To the end of the filter element (2).
The engine air cleaner according to claim 1, wherein the air cleaner is configured to be adhered while being fitted in the recess (9) of (3).