JPH0220016Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention mainly relates to a multi-pass oil filter element, for example, a filter element suitable for use in bypass oil filters for automobiles and the like.

[Conventional technology]

Conventionally, filter elements of this type have been proposed, such as those formed by forming a single sheet-like material into a pleat shape, or those formed by laminating a large number of sheet-like materials.

[Problem that the invention attempts to solve]

When it comes to automobile lubricants and other oils in which the particle sizes of foreign substances and contaminants dispersed over a wide range are made up of a certain mesh, extremely fine particles are If the mesh is made small, the overefficiency will decrease and the life of the element will be shortened.

The present invention improves these conventional drawbacks, effectively traps contaminants with different particle sizes, improves filter efficiency, and extends the life of the filter element.

[Means for solving problems]

The present invention is a method in which flat materials are laminated with a plate member forming a flow path of a specific structure interposed therebetween, and the oil to be passed through the layered outer peripheral end face enters toward the center.

Hereinafter, specific embodiments will be described in detail with reference to the drawings.

FIG. 1 is a longitudinal cross-sectional side view of a portion of the laminated filter element of the present invention, with oil flow paths indicated by arrows. 1 is a plate-shaped body, as shown in the plan view in Fig. 2, which is circular or polygonal, has an appropriately shaped hole 2 in the center, and punched holes 3 are formed evenly over the entire surface. . 4 is a communication groove formed linearly between the punched hole 3 and the outer peripheral edge of the plate-shaped body. The cross-sectional shape of the groove is arbitrary, as long as a passage for oil or the like is formed from the outer circumferential direction to the punched hole 3 when stacked. 5 is the material, and the dimensions and shape are the 4th.
As shown in the figure, it is the same as the plate-shaped body 1, and the hole 6 in the center also coincides with the hole 2 of the plate-shaped body when overlapped. 1' is a plate-shaped body, which is the same as plate-shaped body 1 except that the position of the communication groove 4' is formed to connect the hole 3' and the hole 2' in the center as shown in FIG. It is. Further, 5' is a material, which may be the same as the above-mentioned material, or may have the same dimensions and shape but different densities, for example, 5 may be coarse and 5' may be dense. Each of these members is made into one unit structure in the order 1-5-1'-5' as shown in FIG. 5, and this is repeatedly laminated to form the laminated filter element main body E. FIG. 6 is a sectional view showing such a filter element E loaded into the casing 7, and 8 and 9 are upper and lower holding plates, which are integrally bonded and laminated. Reference numeral 10 denotes an oil inlet; the oil that enters the casing from here enters from the outer periphery of the filter element E, is filtered, and passes through the central hole to the upper outlet 11.
flows out from

[Function and effect]

Since the present invention is configured in this way, the first
As shown in the figure, oil from the outer periphery enters the laminated body through the communication groove 4, passes through the path shown by the arrow, and passes from the communication groove 4' through the passage formed by the holes 2 and 2' in the center. Exit to the outlet. Therefore, each space formed by the punched holes 3 becomes a residue reservoir, so that the overall oil flow rate is naturally adjusted and the overefficiency is improved. Also, the density of material 4 is 4'
By making it coarser and further containing a deoxidizing agent therein, sufficient contact with the antioxidant can be obtained and deterioration due to oxidation can be prevented.

[Brief explanation of drawings]

Fig. 1 is a sectional view showing an embodiment of the present invention, Figs. 2 and 3 are plan views of a plate-shaped body that holds materials, and Fig. 4
5 is a perspective view illustrating the lamination order, and FIG. 6 is a sectional view showing an embodiment applied to an automobile oil filter. 1, 1'... Plate-shaped body for holding material, 2, 2'...
Hole, 3, 3'... punching hole, 4, 4'... communicating groove,
5,5'...Plate material.

Claims (1)

[Claims for Utility Model Registration] A circular or polygonal product having a hole 2 in the center, a plurality of punched holes 3 around the center, and a communication groove 4 formed between the punched holes 3 and the outer periphery of the main body. A plate-shaped member 1, a plate-shaped material 5 having the same shape as the plate-shaped member 1 and having holes 6 that correspond to the holes 2, and a plate-shaped member 5 having the same shape as the plate-shaped member 1 and corresponding to the holes 2 in the center and the holes 3 on the periphery, respectively. a plate-like body 1' having holes 2' and 3', and a communicating groove 4' between the holes 2' and 3';
A laminated filter element is formed by sequentially and repeatedly laminating a plate-shaped material 5' similar to that described above.