JPS627363Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION This invention relates to a laminated type over-element of an oil filter for vehicles, mainly used for bypass.

In large vehicles such as trucks and construction vehicles, the first
As shown in the figure, a bypass b leading to the oil pan Op is provided in front of the main filter _f1 in the hydraulic circuit a, and a sub-filter _f2 is provided in this bypass b to divert part of the oil sent from the oil pump P. The sub-filter _f2 is used to reduce the burden on the main filter _f1 and improve the efficiency of removing impurities.

The above-mentioned sub-filter _f2 is as shown in FIG. 2A, and inside the cylindrical container 1,
A large number of sheets 3 are stacked and assembled into a cylindrical shape with upper and lower end plates 4a, 4b at the peripheral edge thereof using a plurality of bolts 5.
is housed in a perforated pipe 2 in the center, and the paper 3 has a thickness of about 1 mm to 3 mm, and is divided into two wide fan-shaped parts 3a as shown in (b) of the same figure.
and two narrow rectangular portions 3b form a cross, with a hexagonal pipe insertion hole 3c in the center, and a center insertion hole 3c on both sides of each fan-shaped portion 3a and on the rectangular portion 3b on the surface. A thin groove 3d for guiding oil is provided from the edge to the periphery, and in this case, each sheet 3 is stacked with an angle shifted by 60 degrees, and there is an oversurface between the upper and lower sheets 3. The paper 3 is arranged so that a gap corresponding to the thickness of the paper 3 is partially formed in order to form the paper 3.

The oil that enters the container 1 from the inlet 1a at the bottom of the container permeates into the paper 3 through the periphery of the laminated paper 3 and the gaps between each paper, and collects in the narrow grooves 3d on each paper 3. along the center pipe 2, flowing out to the so-called clean side,
The oil flows back to the oil pan Op from the outlet 1b at the bottom of the container.

By the way, the above-mentioned conventional over-element paper has a complicated shape and is not only wasteful in terms of material since it is cut into the shape shown in Fig. 2 (b) from a disc material, but also the effective capacity of the paper is reduced. Furthermore, because each sheet of paper is stacked at a different angle, it takes time and effort to assemble, resulting in poor workability, and it is inconvenient that a hexagonal center pipe must be used.

This invention was devised to improve the above-mentioned drawbacks, and provides an over-element that is made of simple material, has no waste, has a large effective capacity, and is easy to assemble.

3 and 4 show an embodiment of this invention, and 11 is a paper shaped into a circular or polygonal plate with a thickness of about 1 mm to 3 mm,
A center hole 12 for inserting a center pipe is provided in the center, and the surface thereof has a number of radial first thin grooves 13a extending from the periphery toward the center hole 12 but not reaching the center hole 12, and from the center hole 12 to the periphery. A large number of radial second narrow grooves 13b that extend toward the periphery but do not reach the periphery.
One first narrow groove 13a is formed alternately or for every plurality of second narrow grooves 13b, and bolt insertion holes 14 are provided at a required gap on the periphery.

This paper 11 has thin grooves 13a and 13b.
A large number of end plates 4a and 4b are placed on the upper and lower ends of the stack, with the surface with the holes facing up and the bolt insertion holes 14 aligned, and the bolts 5 are inserted into each bolt insertion hole 14 and tightened. and formed into one cylindrical over-element e.

In addition, when using it, it is inserted into the perforated center pipe 2 at the center of the container through the center hole 12 as described above, and installed in the container 1.

When oil is allowed to flow in from the inlet 1a at the bottom of the container, the oil flows from the periphery of the laminated paper 11 into the first narrow grooves 13a, some of which are connected to the periphery, as shown by the arrows in FIG. Facing hole 12,
Some of it penetrates into Paper 11 on the way, and the neighboring paper 2
The paper 11 enters the narrow groove 13b and flows out through it to the center hole 12, and some of the paper 11 flows immediately from the periphery.
The oil enters the second narrow groove 13b leading to the center hole 12 and flows out into the center hole 12.The oil is purified, collects in the center pipe 2, and flows from the outlet 1b into the oil pan.
Returns to Op.

In this case, the paper 11 is a circular or polygonal plate, and its surface has a first narrow groove 13a communicating with the periphery and a second narrow groove 13 communicating with the center hole 12.
Since there are a large number of parts b, oil purification can be carried out uniformly and smoothly in each part.

In this way, in the present invention, the paper is made into a circular or polygonal plate shape, and the surface thereof has first narrow radial grooves that extend from the periphery toward the center hole and do not reach the center hole, and from the center hole to the periphery. By forming a large number of radial second narrow grooves that do not reach the opposite peripheral edges, stacking many sheets of paper, and tightening them together at multiple points on the peripheral edges, the shape of the paper is simpler than conventional ones. It is easy to make, there is no wastage of materials, the effective capacity of paper is increased, and overefficiency is increased. Furthermore, there is no need to shift the position of each sheet of paper during assembly, making work easier, and the center pipe is also circular. It has the advantage of being convenient because it only requires one thing.

[Brief explanation of the drawing]

Figure 1 is a hydraulic circuit diagram for engine sliding parts.
Figure 2A is a sectional view of the bypass oil filter. Figure B is a plan view of conventional paper. Figure 3A is a plan view of the paper according to this invention. Figure b is a side view. Fourth
The figure is a side view of an embodiment of this invention. In the figure, 1... Container, 1a... Inlet, 1b... Outlet, 2... Center pipe, 3, 11... Paper,
4a, 4b... End plate, 5... Bolt,
12... Center opening, 13a... First thin groove, 13b
...Second thin groove.

Claims (1)

[Scope of utility model registration request] It has a circular or polygonal plate shape, and has a first narrow radial groove 13a on the surface that extends from the periphery toward the center hole 12 and does not reach the center hole 12, and a radial first narrow groove 13a that extends from the center hole 12 toward the periphery and extends toward the periphery. radial second that does not reach
This over-element in an oil filter is made by stacking a large number of sheets of paper 11 each having a large number of narrow grooves 13b, and attaching end plates 4a and 4b to the top and bottom of the sheets and tightening them together.