JPH0532165Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a separation device for separating different substances from each other, and in particular relates to an improvement in the support structure of a filter element made of a porous tube. It relates to something that can be effectively used to be installed in a hydraulic system installed in a vehicle such as a vehicle.

[Conventional technology]

A body, a cylindrical supporter whose one end is screwed and supported within the body, and which is installed in a hydraulic system installed in a vehicle such as an automobile and serves as a separation device for removing foreign matter from pressure oil. a filter element extrapolated and supported by a supporter;
A valve is attached to the opening at the other end of the supporter to open and close the supporter, and the pressurized oil sent into the body is transmitted from inside the supporter to the inside and outside of the filter element, thereby removing foreign matter from the filter element. Some are configured to filter with

[The problem that the idea attempts to solve]

However, in such a separation device, the supporter is cantilevered by screwing one end to the body, which reduces the durability of the entire device including the filter element, etc. There is a problem.

An object of the present invention is to provide a separation device that can improve durability.

[Means to solve the problem]

The separation device according to the present invention includes a body, a cylindrical supporter whose one end is screwed into the body and supported, a filter element which is supported by being inserted into the supporter, and an opening at the other end of the supporter. and a valve attached to open and close the valve, wherein a valve guide is disposed and supported on the body so as to face the valve mounting end of the supporter, and the valve guide is supported on the body so as to face the valve mounting end of the supporter. The valve guide is inserted into the valve mounting end of the supporter, and is configured to support the supporter while allowing relative displacement between the supporter and the body, and further, the valve is supported by the valve guide. It is characterized by the presence of

[Effect]

According to the above-mentioned means, since the supporter has a double-sided support structure with the threaded portion at one end and the valve guide at the other end, the supporter has a structure that is robust against vibrations and pressure. Moreover, since the other end of the supporter is supported by the valve guide so as to be displaceable in the axial direction, vibrations in the axial direction, differences in thermal expansion, etc. can be absorbed. As a result, the durability of the entire device including the filter element is improved.

〔Example〕

FIG. 1 is a longitudinal sectional view showing a separation device as an embodiment of the present invention, and FIG. 2 is an enlarged partial sectional view thereof.

In this embodiment, this separation device includes a body 1 that substantially constitutes a flow path for interposing a filter element, and the body 1 is formed into a substantially cylindrical hollow body. In the body 1, an inlet passage 3 and an outlet passage 4 are arranged at one end and the other end of the body, and are opened so as to communicate with the hollow part 2 of the body 1, respectively.
is connected in the middle of the hydraulic system of a vehicle such as an automobile, and pressure oil as a substance to be separated is distributed therethrough. A supporter 5 is arranged in the hollow part 2 of the body 1 approximately on the cylindrical center, and a male threaded part 6 carved on the outer periphery of one end of the supporter 5 is screwed into the opening end of the introduction passage 3 of the body 1. By being inserted into the hollow portion 2, it is supported by the body 1. The supporter 5 is formed into a substantially cylindrical shape, and a large number of through holes 7 are formed in the cylindrical wall so as to communicate between the outside and the outside of the cylinder. A filter element 8, which is integrally molded into a substantially cylindrical shape using a porous material such as porous glass or ceramic, is arranged concentrically and fitted onto the supporter 5. The first sheet 9 and the second sheet 1 are arranged at both ends.
0 and supporter 5 via support ring 11
is supported in a cross-linked state.

A cover 12 is fitted into the outlet passage 4 side end of the body 1 so as to close the open end of the hollow part 2.
A female screw hole 13 is disposed coaxially with the supporter 5 and screwed into the inner end surface of the cover 12. A valve guide 15 formed in a substantially round bar shape has one end screwed into this female threaded hole 13.
This guide 15 is fixed in forward and backward movement by a nut 14. The valve guide 15 is concentrically arranged and inserted into the supporter 5, and a support ring 17 is fixedly fitted into one end of the supporter 5.
It is slidably inserted into the Valve guide 15
A stopper ring 16 is fitted to the insertion end of the valve guide 15, and the stopper ring 16 is configured to restrict the position of the valve guide 15 with respect to the support ring 17. A valve 18 formed in a substantially disk shape is fitted onto the valve guide 15 so as to be slidable in the axial direction.
By being constantly urged in the direction of the supporter 5 by the valve spring 19 which has a reaction force against the valve spring 2, the opening of the supporter 5 can be closed by being pressed against the supporter 5.

Next, the effect will be explained.

Pressure oil 20 used in the hydraulic system of a vehicle such as an automobile is fed under pressure into the hollow portion 2 of the body 1 from the introduction passage 3. The pressure oil 20 supplied to the hollow part 2 of the body 1 is fed into the hollow part of the supporter 5, passes through a group of 7 through holes opened in the supporter 5, and passes through the filter element 8 in the inner and outer directions. When the pressure oil 20 passes through the filter element 8, foreign matter such as dust contained therein is filtered and separated.

By the way, in a separation device mounted on a vehicle such as an automobile, the supporter 5 and the filter element 8 are damaged due to inertia, vibration, etc. during driving.
Relative vibrations and biasing forces act on the body 1, etc. Here, when the supporter 5 is cantilever-supported only by the male threaded portion 6 at one end as in the conventional example, the supporter and the filter element easily move in the radial direction due to the force acting during running. Therefore, the durability of the separation device as a whole is reduced.

However, in this embodiment, since the end of the supporter 5 opposite to the male threaded portion 6 is supported by the valve guide 15 fixedly protruding from the cover 12 via the support ring 17, the end portion of the supporter 5 is supported while the vehicle is running. It does not easily move in the radial direction due to the acting force of. That is, this is because the supporter 5 is supported at both ends by the male threaded portion 6 and the valve guide 15.

Since the supporter 5 is prevented from shifting in the radial direction, the filter element 8 supported by the supporter 5 is also prevented from shifting, and as a result, the durability of the separation device as a whole is reduced. The decline is suppressed.

Further, the supporter 5 and the valve guide 15 tend to be displaced relative to each other in the axial direction due to the difference in coefficient of thermal expansion between the body 1 and the supporter 5, vibration, etc.
In this embodiment, since the valve guide 15 is slidably fitted into the support ring 17, relative displacement in the axial direction is allowed.
An unexpected external force due to the relative displacement will not act between the two. Therefore, the phenomenon in which the supporter 5 and the valve guide 15 are damaged by this unexpected external force can be avoided.

Incidentally, when the pressure inside the filter element 8 rises above a preset pressure value, the force exerted by this internal pressure pushes the valve 18 against the valve spring 19, opening one end of the supporter 5. , the pressure increase within the filter element 8 is suppressed. This prevents damage to the filter element 8 due to an increase in the internal pressure of the filter element 8.

It should be noted that the present invention is not limited to the above-mentioned embodiments, and may be modified without departing from the gist thereof.
It goes without saying that various changes are possible.

For example, a structure in which one end of the supporter is supported by a valve guide while allowing relative displacement between the supporter and the body uses a structure in which the valve guide is slidably fitted into a support ring that is press-fitted into the supporter. You can also use a structure in which a support ring fixed to the valve guide is slidably fitted into the supporter, or a structure in which one end of the valve guide is slidably supported by a cover. good.

[Effect of idea]

As explained above, according to the present invention, since the supporter can be supported on both sides, the durability of the entire separation device including the filter element can be improved.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional view showing a separation device as an embodiment of the present invention, and FIG. 2 is an enlarged partial sectional view thereof. 1...Body, 2...Hollow part, 3...Introduction path,
4... Output path, 5... Supporter, 6... Male threaded portion, 7... Through hole, 8... Filter element,
9, 10... Sheet, 11... Support ring,
12... Cover, 13... Female threaded hole, 14... Nut, 15... Valve guide, 16... Stopper ring, 17... Support ring, 18... Valve, 19... Valve spring, 20... Pressure oil ( substances to be separated).

Claims (1)

[Scope of utility model registration request] A body, a cylindrical supporter whose one end is screwed and supported within the body, a filter element which is supported by being fitted onto the supporter, and a filter element which is attached to an opening at the other end of the supporter so as to be opened and closed. In the separation device, a valve guide is disposed and supported by the body so as to face the valve mounting end of the supporter, and the valve guide is internally disposed at the valve mounting end of the supporter. the valve guide, and is configured to support the supporter while allowing relative displacement between the supporter and the body, and the valve is supported by the valve guide. .