JPH0221847B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an overbody used in a lubricating oil overpass unit for an internal combustion engine.

The conventional overbody is shown in Figures 1 and 2,
It has a structure in which thin paper 3 is simply wound into a roll, and reinforcing members 1 and 2 are attached to the inner and outer peripheries with adhesive or the like.

In the above-mentioned conventional device, as shown by the arrow in the figure, the fluid flows through the thin paper 3 through the minute gaps between them, or passes through the thin paper 3, or passes through the minute gaps, and the particles therein are captured. It's summery.

However, in the above-mentioned conventional type, both ends of the thin paper 3 are open as shown in FIG. Fluid flows through the gaps, and particles in the fluid are no longer captured.

Therefore, an object of the present invention is to reliably capture particulates in a fluid.

The object of the present invention is to provide a band-shaped material having a trapezoidal or fan-shaped shape, one end of which is shorter in width and the other end of which is longer than the one end, and to continuously bend this material into a wave-shaped cross section between the two ends. The strip material having a wave-shaped cross section is arranged such that the one end thereof is on the inner circumferential side,
The other end is curved so as to face the outer circumferential side, and both ends are joined to form a cylindrical overbody body as a whole, and reinforcing members are provided on the inner and outer circumferential sides of the overbody body over the entire circumference. , the inner circumferential side of the overbody main body is joined to the reinforcing member on the inner circumference side, and the outer circumferential side of the overbody main body is connected to the outer circumferential side of the main body. This is achieved by joining the reinforcing member on the outer peripheral side.

The present invention will be explained in detail below using an example in which the present invention is applied to a lubricating oil filter for an automobile internal combustion engine.

The material shape of the overbody of the present invention is a trapezoidal shape in which the width at one end is short and the width at the other end is long, as shown in FIG.
B-
When folded along folding lines B', C-C'...K-K', the material 3 has a corrugated section with a plurality of continuous top rows and bottom rows formed between both ends of the material 3, as shown in Figure 4. 3 is obtained. This material 3 is curved into a ring shape as shown in FIG. 5, and both ends thereof are covered with resin 4 to obtain a concentric circular overbody body 5. The above is the basic structure of the present invention, and by elongating the trapezoidal member 3 and making the cross-sectional corrugated portions almost stick together, a cylindrical overbody body 5 as shown in FIG. 6 can be obtained. In FIG. 6, metal reinforcing members 1 and 2 (for example, cardboard or plastic may be used) are attached to the inner and outer peripheries of the overbody main body 5, and as shown in FIG. The reinforcing members 1 and 2 are attached with adhesive 6 at both ends of the main body 5.
It is glued and sealed.

The overbody having the above structure is assembled as shown in FIG. That is, a disk-shaped metal end plate 7 is caulked and sealed with adhesive A to the upper ends of the reinforcing members 1 and 2 of the overbody, and a disk having holes 9a is attached to the lower ends of the reinforcing members 1 and 2. A shaped metal end plate 9 is sealed and fixed by caulking and adhesive B. In addition,
The overbody body 5 is pressed in the axial direction by the ring-shaped protrusion 7a of the end plate 7.

The above assembly is housed in a metal container 11, and sealed to the end plate 8 which is secured to the container 11 with a ring-shaped rubber gasket 10.

In the figure, 12 is a plurality of holes provided in the reinforcing member 1, 13 is a screw portion for fixing to the internal combustion engine, 14 is a pressing spring, and 15 is a ring-shaped packing.

In the above configuration, the operation will be explained next. The lubricating oil enters the container 11 through the plurality of holes 8a in the end plate 8 as shown by the arrows. This oil is poured into the holes 9 of the end plate 9a.
a, reaches the overbody main body 5, crosses the material 3 of the main body 5, becomes clean, passes through the plurality of holes 12 in the reinforcing member 1 as shown by the arrow, reaches the inside of the reinforcing member 1, and enters the internal combustion engine. return.

In the overbody of the present invention, the material 3 of the main body 5 is continuously bent to have a wave-shaped cross section, and both ends thereof are not open and communicated as in the conventional case, so even if fine particles in the oil accumulate, they will not accumulate. Because of the fine particles, the gaps between the corrugated parts of the material 3 are not communicated between both ends of the material 3, and the oil always crosses the material 3, so that the fine particles can be captured reliably.

Next, examples will be shown. FIG. 9 shows experimental results based on JISD1611, and shows a performance comparison between the conventional example a shown in FIG. 1 and the embodiment b of the present invention shown in FIG. As is clear from FIG. 9, in the conventional example a, the flow rate increases in a short period of time (the gap between the thin sheets 3 in the conventional method widens), and the excess efficiency rapidly decreases. On the other hand, Example b has very good life and overefficiency.

Other embodiments of the overbody body 5 of the present invention will be described below.

10 to 12, the arc length a-a' of the short side of the fan-shaped material 3 as shown in FIG. Let the length of the circular arc k-k' be the length of the outermost circumference, and this short side a
-a' and the long side k-k', the overbody body 5 is equally spaced.
The arcs b-b'...j-j' are scored using the radius R determined from the inner and outer diameters of the curves. This arc b−b′...
By bending j-j', material 3 shown in FIG. 11 is obtained. The ends a...k of this material 3 are joined to a...k' with resin 4, respectively, to obtain a concentric circular overbody body 5 as shown in FIG. The overbody body 5 in such a structure has a starting material 3 having a fan shape, and the bent portion is a circular arc, and the line of the arc forms a 90° angle with both edges of the material 3. Since there is no difference in the circumferential length of the main body 5, there is no need to use a stretchable material for the material 3, and paper, nonwoven fabric, felt, etc. can be freely selected.

FIGS. 13 and 14 show other embodiments of the present invention. To explain this, as shown in Figure 13, l-m, no, p-q, r-
Let s, tu have the same length, while m-n, o-
p, q-r, s-t, uv have the same length, and the above l-m, no, p-q, r-s, tu
A longer material 3 is used.

If this material 3 is used, as shown in Fig. 14,
The top and bottom rows of the continuous wave-shaped portions of the overbody body 5 are parallel to each other and are inclined downward with respect to the axis of the overbody body 5.

15 and 16 show other embodiments of the present invention. In this embodiment, the centers of the arcuate lines relative to the members 3 are different, and their radii are also different, and the overbody body 5 according to this embodiment is as shown in FIG. 16.

Figures 17 and 18 show the embodiment shown in Figure 3, in which the material 3 is divided into a low air permeability part 3a and a high air permeability part 3b, and they are integrated (for example, in the papermaking process). be.

FIG. 19 shows the embodiment shown in FIG. 5, in which a material 50 with high air permeability, such as polyurethane foam, is arranged inside the overbody body 5.

In each of the above embodiments, both ends of the material 3, as well as the overbody body 5 and the inner and outer circumferences 1 and 2 are bonded with the adhesive 4, but a foam such as urethane foam resin, a resin such as polyester, or nylon may also be used. , or sutures.

Furthermore, the outer cylinder 2 is not limited to a cylindrical body, but can also be made of the above-mentioned cardboard,
A rigid material such as an iron plate or an aluminum plate may be wrapped around the outer circumference of the overbody body 5 and fixed.

Further, the present invention can be applied to air purifiers, water purifiers, etc., and can be used for automobiles or homes.

In summary, in the present invention, both end faces of the overbody have a continuous waveform shape and are not open as in the conventional case, so that during the flow of fluid, fine particles accumulate and pass through the gap between the materials as in the past. The fluid does not flow unfiltered, and therefore, fine particles in the fluid can be reliably captured and there is an excellent effect that overefficiency does not decrease.

Further, in the present invention, reinforcing materials are provided on the inner and outer peripheries of the overbody, which is advantageous in terms of strength.

[Brief explanation of drawings]

Fig. 1 is a partially cutaway perspective view showing a conventional example, Fig. 2 is an enlarged view of section A in Fig. 1, Fig. 3 is a perspective view showing the material used in the present invention, and Fig. 4 is Fig. 3. FIG. 5 is a perspective view showing the material shown in FIG. 4 in a bent state, FIG. 6 is an enlarged view of part B, FIG. 8 is a partially cutaway cross-sectional view showing an application example using the overbody shown in FIG. 6, FIG. 9 is a characteristic diagram for explaining the effects of the present invention, and FIG. A plan view showing the material used in another embodiment of the invention, FIG. 11 is a perspective view showing the material in FIG. 10 in a bent state, and FIG. 12 is a perspective view showing the material in FIG. 11 in a curved state. , FIG. 13 is a plan view showing a material used in another embodiment of the present invention, FIG. 14 is a partially cutaway perspective view showing the material in FIG. 13 in a bent state, and FIG. 15 is a plan view showing a material used in another embodiment of the present invention. FIG. 16 is a plan view showing the material shown in FIG. 15 in a bent state; FIG. 17 is a plan view showing the material used in yet another example of the present invention. , FIG. 18 is a plan view showing the material shown in FIG. 17 in a bent state, and FIG. 19 is a partially cutaway perspective view showing another embodiment of the present invention. 1, 2...Inner cylinder, outer cylinder, 3...Material, 5...
Overbody body.

Claims (1)

[Claims] 1. A belt-like material having a trapezoidal or fan-shaped shape with a width at one end shorter and a width at the other end longer than the one end, and this material is continuously bent into a wavy cross-sectional shape between the two ends, and the wavy cross-sectional shape The band material is curved so that the one end is on the inner circumferential side and the other end is on the outer circumferential side, and both ends are joined to form a cylindrical overbody body as a whole, and the inner circumferential side of the overbody body is formed. and a reinforcing member is attached to the outer circumferential side thereof over the entire circumference, and an end side of the main body on the inner circumferential side of the overbody body is joined to the reinforcing member on the inner circumference side, and the overbody body An overbody characterized in that an end side of the main body of the outer circumferential side is joined to the reinforcing member on the outer circumferential side.