JPS62176559A - Electrostatic precipitation type oil filter apparatus - Google Patents

Abstract

PURPOSE:To collect carbon fine particles in oil, by a simple small-sized structure such that a mount member is utilized as a metal jig for fixing a filter element and an electrode. CONSTITUTION:At the time of use, oil containing noxious particles such as carbon fine particles flows in a case 11 from an oil inlet 19 and passes through a filter element 12 from an outside chamber 14 to flow in an inside chamber 15 at a low speed. The carbon fine particles suspended in the oil are charged by the explosion in a combustion chamber or a high electric field of DC voltage to be converted to charged particles. When the oil passes through the filter paper or notch part 41 of a filter element 12, said charged particles are moved toward a mount member 13a being a dust collection electrode by electric force and accumulated on the mount member 13a or the filter paper 22 therearound. Therefore, the carbon fine particles are removed from the oil while the oil is purified to be discharged from an oil outlet 27.

Description

DETAILED DESCRIPTION OF THE INVENTION Industrial Advantages This invention relates to an electrostatic precipitator oil filter device that can collect fine particles such as carbon particles suspended in lubricating oil.

The lubricating oil of the engine for a Jubilee vehicle is supplied from the oil pan by a pump to each sliding part in the engine through a filter, and then returned to the oil pan. is returned directly to the oil pan through a filter provided in the bypass pipe. An oil filter used in such a lubrication system is disclosed, for example, in Japanese Utility Model Application Publication No. 58-190413.

The oil used in the above-mentioned lubrication system is also introduced into the crankcase, but a large amount of unburned carbon particles are discharged from the combustion chamber inside the crankcase. Carbon particles are absorbed into the oil. If such carbon particles are supplied to each sliding part of the engine together with lubricating oil, they will have adverse effects such as increased wear, clogging, and oil contamination, causing engine trouble and shortening the engine life. Carbon particles must be removed from lubricating oil using an oil filter. However, since carbon particles suspended in lubricating oil have an average diameter of 0.1 to 50 μm,
Conventional filtration element type oil filters were unable to remove carbon particles.

Therefore, an electrostatic precipitator oil filter device was proposed that uses electric force to remove the fine carbon floating in the oil.However, in the conventional electrostatic co-precipitation oil filter device, the discharge electrode and the dust collection electrode are connected to the filtration type. It had to be provided separately from the filter, making the device complicated and large.

SUMMARY OF THE INVENTION An object of the present invention is to provide an electrostatic precipitator oil filter device that can collect carbon particles contained in lubricating oil and can be manufactured in a small size with a simple structure.

The electrostatic precipitator oil filter device according to the present invention for the purpose of In an electrostatic precipitator oil filter device comprising an outer chamber formed between the filtration element and an inner chamber formed at the center of the filtration element, the mounting member or the mounting member and the case constitute an electrode. The present invention is characterized in that fine particles contained in the oil flowing between the outer chamber and the inner chamber are collected by the electric force applied by the electrode.

In this invention, since the mounting members are used as metal fittings and electrodes for fixing the filter element, the structure of the electrostatic precipitator oil filter device is simplified.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Exemplary embodiments of the present invention will now be described with reference to the drawings. 1st
As shown in the figure, the electrostatic precipitator oil filter device 10 of the present invention includes a metal case 11 and a metal case 11.
The filtration element 12 disposed within the case 1, the metal mounting member 13 for fixing the filtration element 12, and the case 1
1 and the filtration element 12.
and an inner chamber 15 formed at the center of the filter element 12. The case 11 has a cylindrical main body 16.

An oil inlet 19 is provided in the bottom wall 18 of the main body 16 with a cover 17 fixed to the upper part of the main body 16 in a known manner.
is provided. An electrically insulating material 20 is fixed to the cover 17 of the case 11, and a voltage is applied to the conductive material 21 supported by this material 20 from the outside.

The filtration element 12 includes a plurality of filter papers 22 stacked as filter media, an insulating upper end plate 23 and a lower end plate 24 disposed at both ends of the filter paper 22, and the filter papers 22 and end plates 23.2.
The attachment for fixing 4 is comprised of member 13. A metal spacer 26 is disposed between the lower end plate 24 and the bottom 4118, and the case 11 is grounded with a conductive material 27.
As this grounding method, other means can be used as long as the mounting method is such that a ground potential is applied to the member 13b and the case 11. A metal plate 29 is arranged between the metal spacer 26 and the lower end plate 24. The upper protrusion 26a formed on the spacer 26 is fitted into a hole 24n provided in the lower end plate 24 and fixed. An oil outlet 27 is formed in the cover 17 above the inner chamber 15, and an oil outlet 27 is formed in the cover 17 and the upper end plate 23.
A compression spring 28 is arranged between the filtration element 12 and
teeth.

It is constantly pressed downward. A through hole 3 is provided on the upper end plate 23.
An insulating sleeve 31 having a number 0 formed thereon is placed, and a metal plate 32 is placed on top of the sleeve 31. This metal Fi3
2 is connected to the conductive material 21 described above.

The attachment member 13 is a wire that fixes the filter element 12 arranged in a stacked manner between the upper end plate 23 and the lower end plate 24. In this installation, the member 13 is connected to the metal plate 32.One installation is the member 13a, and the other installation is the member 13a.
It has b. As shown in FIG. 2, one attachment is such that the upper end 33 of member 13a is attached to
It passes through the through hole 30 of No. 1 and is fixed to the metal plate 32. Further, as shown in FIG. 3, the lower end 34 of the member 13a is fixed to the lower end plate 24. In the other attachment, the upper end 35 of the member 13b is fixed to the upper end plate 23, and is prevented from contacting the metal plate 32 by the sleeve 31. Installation is done using component 1
The lower end 36 of 3b is fixed to the metal plate 29. In practice, the attachment is at the upper ends 33, 35 and at the lower ends 34, 36 of the member 13.
are fixed to the corresponding end plate 23.24 or metal plate 29.32 by bending.

The metal plate 32 is formed into a ring shape as shown in FIG. 4, and the upper end 33 of the member 13a protrudes and is bent through a hole 33a provided at an angle of approximately 120 degrees. As shown in FIG. 5, the metal plate 29 is circular and has a cutout 29a, and the member 1 is attached to the cutout 29a.
The lower end 34 of 3a is positioned as shown in FIG. The insulating upper end plate 23 and the lower end plate 24 have the same shape. For example, as shown in FIG. Each attachment is passed through by members 13a and 13b.

As shown in FIG. 7, the filter paper 22 has insulation properties and is formed in a trilobal shape, and is provided with three leaf portions 40. A cutout portion 41 is provided between each leaf portion 40 . A large number of filter papers 22 are stacked in a layered manner, and the vertically adjacent filter papers 22 are arranged at an angle of 60 degrees, so that the sides of the filter element 12 have leaves as shown in FIG. The peripheral edge portion 42 of the portion 40 and the notch portion 41 appear alternately.

In the above configuration, a positive potential and a ground potential are applied to the conductive materials 21 and 27, respectively, and a positive Vi4 potential and a ground potential are applied to the mounting members 13a and 13b, respectively. Furthermore, the case 11 is also provided with the same ground potential as the mounting member 13b. For installation, members 13a and 13b are installed at an angle of 60 degrees, so members L3a and 13b are installed at an angle of 60 degrees.
A high electric field of DC voltage is formed between the case 11 and the case 11.

In this case, for example, the attached member L:3a constitutes the positive side electrode, and the attached member 13b and the case 11 constitute the negative side electrode.

When using the electrostatic precipitator oil filter device of the present invention, oil containing harmful particles such as carbon particles flows into the case 11 from the oil port 19, and this oil passes through the filter element 12 from the outer chamber 14. Street, inside '4!
15 at a low velocity.

The carbon particles floating in the oil are charged by the explosion in the combustion chamber or by the above-mentioned high electric field, and become charged particles. The above oil is removed from the filter paper 22 or the notch 4 of the filter element 12.
1, the electric force moves the attachment, which is the dust collection electrode, towards member 13a, and the attachment is deposited on member 13a or on the filter paper 22 around it. The oil from which carbon particles have been removed and purified is discharged from the oil outlet 27.

The above-described embodiments of the invention can be modified in various ways within the same technical scope.6 For example, the mounting can generate a high electric field only between the component and the case.

In the above example, a positive potential and a ground potential were applied, but a negative potential and a ground potential may be applied to form a DC voltage electric field. Furthermore, as a method of fixing the member, the sleeve 31 is omitted and the member 13a is attached as shown in FIG.
The upper end 33 of the member 13b may be formed into a U-shape to prevent contact between the member 13b and the metal plate 32 during installation. Further, as shown in FIG. 10, a spacer 37 may be attached to the lower end 34 of the member 13a.

As mentioned above, in this invention, the mounting for fixing the filter medium of the filter element constitutes an electrode by the member, and the electric force given by this electrode causes the oil to flow between the outer chamber and the inner chamber. Since the fine particles contained therein are supplemented by electric force, an electrostatic precipitator oil filter device that removes harmful particles such as carbon fine particles floating in the oil can be manufactured with a simplified structure. Since the mounting member is used as an electrode, the effective flow area for oil to pass through becomes larger, and by attaching electrically insulating parts, a conventional oil filter device can be changed to an electrostatic precipitator oil filter device with the simple addition of parts. can do.

[Brief explanation of drawings]

Fig. 1 is a sectional view of a static fltsm type oil filter device according to the present invention, Fig. 2 is a partial sectional view of the upper end plate used in this device, and Fig. 3 is a partial sectional view of the lower end plate used in this device. Partial sectional view, FIG. 4 is a plan view of the filter element,
Fig. 5 is a bottom view of this, Fig. 6 is a plan view of the end plate, and Fig. 7 is a plan view of the end plate.
8 is a side view of the filter paper, FIG. 9 is a partial sectional view showing another embodiment of the upper end plate, and FIG.
The diagram is. It is a partial wR side view which shows another Example of a lower end plate. 100. Electrostatic precipitator oil filter device, 11. . Metal case, 12. , filtration element, 13. . Metal mounting is a member, 140. outer chamber, 150. Inner side chamber, 20. ．． Electrical insulating material, 21. , conductive material, 2
30. Upper end plate, 24. , , Lower end plate patent applicant Tsuchiya Seisakusho Co., Ltd. Agent Takashi Shimizu -: Ko') ・Knee' (and 1 other person) Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 F1 Figure 7

Claims (6)

[Claims] (1) A metal case, a filtration element disposed within the case and having a filter medium fixed by a metal mounting member, an outer chamber formed between the case and the filtration element, and a center of the filtration element. In the electrostatic precipitator oil filter device, the mounting member or the mounting member and the case constitute an electrode, and the electric force applied by the electrode causes the outer chamber and the inner chamber to be separated. An electrostatic precipitator oil filter device characterized in that fine particles contained in oil flowing between the filters are collected. (2) The electrostatic precipitator oil filter device according to claim 1, wherein a voltage is applied between all or part of the mounting member and the other part of the mounting member or the case. (3) The electrostatic precipitator oil according to claim (2), wherein a ground potential is applied to the mounting members of the case or other parts, and a positive electrode potential is applied to some of the mounting members. filter device (4) A positive electrode potential is applied to a part of the mounting member,
The electrostatic precipitator oil filter device according to claim 2, wherein a negative electrode potential or a ground potential is applied to the other mounting members or the case. (5) The electrostatic precipitator oil according to claim (1), wherein the mounting member is a wire that fixes the filter element arranged in a stacked state between the upper end plate and the lower end plate. filter device. (6) An electrically insulating material is fixed to the case, and a potential of the other polarity is applied to the mounting member from the outside by means of a conductive material supported by the electrically insulating material. The electrostatic precipitator oil filter device described in (2).