JP3025978U - Filter element for engine air cleaner - Google Patents

Abstract

(57) [Summary] [Challenge] If the filtration area is the same as the conventional product, it requires less space than the conventional product, and it is extremely simple because it can save a lot of time and effort for molding the filter element body. To provide a filter element of an air cleaner unit having a simple structure. SOLUTION: A filter material 1 having a substantially horizontally long rectangular shape in a plan view and having a corrugated longitudinal cross section is formed by gathering one end side of the corrugated cross section at the center side and expanding the other end side into a substantially circular shape. The left and right ends 1c and 1d of the filter material 1 are joined to each other to form a filter element body Fb having a substantially annular shape when seen from a plane, and a pyramid shape or The cover bodies 2 and 3 formed of the filter material 1 were attached so as to form a spinner shape.

Description

[Detailed description of the device]

[0001]

[Technical field to which the device belongs]

 The present invention relates to the structure of a filter element of an air cleaner unit of the element exposure type installed in an automobile engine or the like.

[0002]

[Prior art]

 Conventionally, as an air cleaner device installed in an intake system of an automobile engine, a so-called cover type in which a filter element is housed in an air cleaner case connected to an intake duct is generally used. An element exposure type in which the filter element itself is directly connected to the intake duct without using a cover by an air cleaner is known as a so-called optional equipment or after part.

Since the element-exposed air cleaner unit has the filter element exposed to the outside, the air intake efficiency is better than that of the covered type, and the engine output increase effect can be obtained. In addition, for example, in a sports type passenger car, an existing item is often removed and used instead. However, because the installation space inside the engine room is limited, various modifications have been made to the shape and structure of the filter element in order to install a filter element with good suction efficiency.

FIG. 5 shows an example of a conventional element exposure type air cleaner unit 10 in a front sectional view. The filter element main body 11 is a filter made of an appropriate filter material such as paper, cloth, or non-woven fabric. A ring-shaped edge member 12 made of synthetic rubber or the like is formed in a taper cylinder shape whose wall surface is formed in a corrugated cross section, and has an intake duct connection port 12a at the large diameter side opening end of the element body 11. Further, at the opening end on the small diameter side, a metal blind lid member 13a is integrally connected to an edge member 13 made of synthetic rubber by vulcanization adhesion or the like. In this air cleaner unit 10, the intake duct connection port 12a is fitted and fixed to a joint fitting 20 connected via a connection collar 21 made of rubber or the like, and the collar 21 is connected to an intake pipe on the engine side. It is attached to the engine by connecting to 22. The blind lid member 13a of the air cleaner unit 10 may be of a synthetic rubber type which shares the outer peripheral portion with the edge member 13.

In the conventional air cleaner unit 10 shown in FIG. 5, the filter element main body 11 is formed on the air intake surface in the form of a taper cylinder with a wavy cross section, so that the occupied volume is small and the outer shape is immediate. Even if the filter element main body 11 has a small outer shape, a large amount of air can be taken in efficiently because the intake area can be made large even if the filter element main body 11 has a relatively small size.

However, since the filter element main body 11 in the above conventional air cleaner unit 10 has a tapered tubular shape, it still occupies a large space and the element main body 11 is -Paper It takes time and effort to form it into a tubular shape, and it is necessary to integrally form the edge members 12 and 13 in the upper and lower openings, and it takes time to form the filter material and the element body. There is a problem to be solved.

[0007]

[Problems to be solved by the device]

 In view of these points, the present invention requires a smaller occupied space than the conventional product if the filtration area is the same as that of the conventional product, and can significantly reduce the molding labor and the manufacturing labor of the filter element body. It is an object of the present invention to provide a filter element of an air cleaner unit having an extremely simple structure.

[0008]

[Means for Solving the Problems]

 One configuration of the filter element of the present invention made for the purpose of solving the above-mentioned problems is to provide a filter material having a substantially horizontally long rectangular shape in a plan view and having a corrugated longitudinal cross section. And the other end side of which is expanded into a substantially circular shape to join the left and right ends of the filter material to form a filter element body having a substantially annular shape when viewed from the plane. It is characterized in that a cover body formed of a filter material so as to have a conical or spinner shape is attached to the upper surface side or the lower surface side.

The filter element of the present invention is also characterized in that an edge member is integrally formed on the outer periphery of the filter element, and the edge member is connected to the engine side intake pipe, for example, it is formed so as to be attached to the upper opening surface of a funnel-shaped connection attachment. It is what

[0010]

[Embodiment of device]

 Next, an embodiment of the present invention will be described with reference to the drawings. In FIG. 1, reference numeral 1 denotes a filter material used in the filter element of the present invention, which is made of cloth, paper, non-woven fabric, or the like, and which is rectangular in plan view and has a corrugated cross section along the long side from the front. ing. 1a is a peak in the corrugated cross section of the filter material 1, 1b is a valley in the corrugated cross section, and 1c and 1d are left and right side end portions. Although not shown, the filter material 1 is one in which both inner and outer surfaces are covered with a metal mesh and reinforced. Needless to say, the filter element of the present invention can be used even if it is not reinforced with a metal mesh.

The filter material 1 is rectangular here when viewed from a plane, but may be horizontally long trapezoidal. As shown in FIG. 2, the filter material 1 of FIG. 1 has the front side of the corrugated cross section gathered at the center of the circle and the opposite side is developed into a circular shape, so that the left and right end portions of the filter material 1 of FIG. 1c and 1d are brought into contact with each other face-to-face, and these parts are integrated with adhesive or fasteners to form a filter element main body Fb which is substantially ring-shaped when viewed from the top and is substantially flat when viewed from the front. Here, since the filter material 1 is rectangular or trapezoidal in plan view, a hole Ch is formed in the central portion as shown in FIG. Further, depending on the ratio of the vertical and horizontal lengths of the filter material 1, the element body Fb is not only flat when viewed from the front, but also has a large obtuse angle (vertical angle) as shown in FIGS. There is also a form of truncated cone shape (close to the plane). In the element body Fb formed in the above-mentioned annular shape, the peaks 1a and valleys 1b of the corrugated cross section of the filter material 1 are densely gathered in the central portion, while the peaks 1a and valleys 1b are opened and closed on the outer peripheral side. Become.

In view of this, in the present invention, in the hole Ch in the center of the filter element body Fb, as shown in FIG. 3 or 4, an appropriate filter material makes the front shape into a conical shape or a spinner shape. The cap body thus formed was attached as the cover body 2 or 3. In the present invention, the planar shape of the cover body 2 or 3 made of the filter material may be either a conical shape or a pyramidal shape, and its slope may be a bulging surface or a concave curved surface. Furthermore, a filter material having a corrugated cross-section may be used for the cover body 2 or 3, and it is optional.

The filter element body Fb having an annular shape in plan view, in which the cover body 2 or 3 is attached to the center hole Ch, has an outer periphery made of a rubber or plastic material, for example, an edge material 4 having a cross section. Are integrally provided to form an example of the air cleaner element of the present invention.

As shown in FIGS. 3 and 4, the filter element of the present invention described above has a funnel shape or a funnel shape that is separately manufactured for connection to the intake side of an engine of an automobile or the like. By detachably attaching to the upper opening end 5a of the connection attachment 5 by the clamp 7 which can be opened and closed in the edge member 4, and connecting the lower opening end 5b of the attachment 5 to the connection pipe 6 with the engine intake side, It is used as an air cleaner.

When the air suction force of the engine acts on the inside of the connection attachment 5, the air cleaner using the element of the present invention operates from the outer surface of the annular element body Fb and the cover body 2 or 3 to the body Fb. The air is sucked through the cover body 2 or 3, and the sucked air is sucked into the connection attachment 5 and the connection pipe 6 while being rectified well by the cover body 2 or 3. Inhalation noise is low, and turbulence during air intake is unlikely to occur.

[0016]

The present invention is as described above, and a filter material having a substantially rectangular plane shape and a corrugated cross section is formed in an annular shape in the plane or substantially in the plane when viewed from the plane, and a hole at the center is formed. A cone-shaped cover body made of filter material was attached to the filter element body, and the edge part was formed on the outer circumference to form the filter element body. It is easier and simpler than the type of molding the edge part. Also, since the element body is circular when viewed from the top, compared to the conventional filter element exposed type air cleaner that uses a tubular element body, the air cleaner that uses the filter element of the present invention occupies Since the space is less than half, there is an advantage that it is easy to clear the problem of the mounting space in the engine room.

[Brief description of drawings]

FIG. 1 is a perspective view of an example of a filter material used in a filter element of the present invention.

FIG. 2 is a plan view of a process of molding the filter material of FIG. 1 into a filter element of the present invention.

FIG. 3 is a front sectional view of an example of an air cleaner unit using the filter element of the present invention.

FIG. 4 is a front sectional view of another example of an air cleaner unit using the filter element of the present invention.

FIG. 5 is a front sectional view of a conventional air cleaner unit.

[Explanation of symbols]

 1 Filter material 1a Crest of corrugated section of filter material 1b Valley of corrugated section of filter material 1c, 1d Both ends of filter material Fb Filter element body Ch Center hole of filter element body 2, 3 Cover body 4 Edge material 5 Connection attachment 6 Connection tube 7 Clamp

Claims (5)

[Scope of utility model registration request] 1. A filter material having a substantially horizontally long rectangular shape in a plan view and having a corrugated longitudinal cross section, wherein one end side of the corrugated cross section is gathered at the center side and the other end side is expanded into a substantially circular shape. The left and right ends of the filter material are joined together to form a filter element body having a substantially annular shape when viewed from a plane, on the upper surface side or the lower surface side of the central portion of the filter element body,
A filter element for an engine air cleaner, characterized in that a cover body formed in a conical or spinner shape by a filter material is attached. 2. The filter element for an engine air cleaner according to claim 1, wherein the filter material of the filter element main body is formed in a trapezoid shape that is horizontally long when viewed from above. 3. The filter element for an engine air cleaner according to claim 1, wherein the filter element body is formed in a substantially flat surface when viewed from the front, or in a truncated cone shape or an inverted truncated cone shape whose apex angle is obtuse. . 4. The engine air cleaner according to claim 1, wherein the cover body is formed to have a corrugated cross section.
The filter element of Na. 5. A rubber or synthetic resin edge material is integrally provided on the outer periphery of the filter element main body with the main body, and is attached to a connection attachment connected to the intake side of the engine at the edge material. A filter element for an air cleaner for an engine according to any one of to 4.