JPH0595614U - Oil filter device with built-in magnet - Google Patents

Abstract

(57) [Summary] [Structure] A filter paper tube member is inserted into a bottomed cylindrical casing, the opening of the casing is covered with a tapping plate, and an outlet is provided at a substantially central portion of the tapping plate. An inlet is installed outside the outlet, the outlet is opened inside the filter paper tube member, and the inlet is opened outside the filter paper tube member,
In an oil filter device for injecting lubricating oil from the inflow port, passing through the filter paper cylinder member, and discharging from the outflow port, an oil filter device with a built-in magnet in which a magnet member is installed in the tapping plate near the inside of the outflow port. . [Effects] Iron powder having relatively large particles is removed by the filter paper tube member, and what passes without being captured by the filter paper tube member is adsorbed and removed by the magnet member, so that the adsorption function of the magnet member is maintained for a long period of time. As a result, the life of the oil filter device can be extended as compared with the conventional one.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an oil filter device with a built-in magnet, which is used when filtering lubricating oil in an internal combustion engine.

[0002]

[Prior Art]

 Lubricating oil of an internal combustion engine is likely to contain iron powder and the like due to wear of its rotating or sliding parts. This iron powder moves with the lubricating oil in the internal combustion engine and further wears the rotating and sliding parts of the internal combustion engine.

Therefore, conventionally, a magnet is installed in the oil filter device to adsorb and remove the iron powder and the like.

[0004]

[Problems to be solved by the device]

 However, in such a conventional oil filter device, since all such iron powder and the like is adsorbed and removed by the magnet regardless of its size, the adsorbing function of the magnet is likely to deteriorate, and as a result, the oil filter It had the inconvenience that the life of the device had to be short.

An object of this invention is to eliminate such inconvenience.

[0006]

[Means for Solving the Problems]

 In order to achieve the above object, in the oil filter device with a built-in magnet according to the present invention, when a filter paper tube member is inserted into a bottomed cylindrical casing, the opening of the casing is covered with a tapping plate, and the tapping plate An outlet is installed at a substantially central portion and an inlet is installed outside the outlet, the outlet is opened inside the filter paper tube member, and the inlet is opened outside the filter paper tube member, In an oil filter device in which lubricating oil enters through the inflow port, passes through the filter paper tube member, and is discharged through the outflow port,

A magnet member is installed near the inside of the outlet of the tapping plate.

[0008]

[Action]

 Since the oil filter device with a built-in magnet according to the present invention is configured as described above, iron powder having relatively large particles is removed by the filter paper tube member, and the one that has passed through without being caught by the filter paper tube member is the magnet member. Are adsorbed and removed by.

[0009] If the magnet member is a cylindrical body that is connected to the inner edge of the outflow port, the contact area of the lubricating oil in the magnet member becomes large, so that iron powder in the lubricating oil can be easily adsorbed. It is a thing.

Further, when a required number of slits are formed in the cylindrical body, the contact area of the lubricating oil in the magnet member is further increased, so that the iron powder in the lubricating oil is more easily adsorbed. The slit may be provided along the axial direction of the tubular body or may be provided perpendicularly to the axial direction of the tubular body.

[0011]

【Example】

 In FIG. 1, reference numeral 1 denotes a casing of a cartridge type oil filter device C, which is formed in a cylindrical shape with a bottom. Reference numeral 2 is a filter cylinder unit, which is housed in the casing 1 with a leaf spring 11 biased. The filter cylinder unit 2 is composed of a filter paper cylinder member 21 fitted on an inner cylinder (made of punching metal) 25, an upper lid 22 for covering the upper end opening of the filter paper cylinder member 21 and a lower lid 23 for covering the lower end opening. ing. Reference numeral 3 is a mounting hole, which is formed at a substantially central portion of the lower lid 23. A locking cylinder 31 is integrally formed on the peripheral edge of the mounting hole 3 and projects downward.

Reference numeral 4 is a check valve, which is externally fitted to the locking cylinder 31 and has its valve body 41 radially extended. The check valve 4 is for preventing the backflow of the lubricating oil when the engine is stopped. Reference numeral 5 denotes a disk-shaped tapping plate, which has an outflow tube 51 projecting inward at its center and an inflow hole 52 outside this outflow tube 51. The tapping plate 5 is attached with the outflow cylinder 51 fitted inside the locking cylinder 31 of the filtration cylinder unit 2. In this case, the check valve 4 is located inside the inflow hole 52 of the tapping plate 5. Reference numeral 6 denotes a locking frame, which is caulked to the opening edge of the casing 1. Therefore, the filtration cylinder unit 2, the check valve 4, and the tapping plate 5 are housed in the casing 1 in a biased state. Incidentally, 7 is an attachment packing installed on the lower surface of the locking frame 6.

Next, 8 is a magnet cylinder, which is erected and fixed above the attachment hole 3 of the lower lid member 23 in the filtration cylinder unit 2. The magnet cylinder 8 extends to the inner space of the inner cylinder 25.

The magnet tube 8 may be provided with slits 81, 81, ... In the vertical direction or the horizontal direction as shown in FIG. 2 or FIGS. 3 and 4.

In the cartridge type oil filter device C configured as described above, the lubricating oil enters through the inflow hole 52 of the tapping plate 5 and passes through the filter paper tube member 21 from the outside of the filter tube unit 2. At this time, iron powder or the like having a large particle size is removed. After passing through the filter paper cylinder member 21, it comes into contact with the outer wall surface or the inner wall surface of the magnet cylinder 8 to adsorb and remove fine iron components (those not removed by the filter paper cylinder member 21). Then, after all the iron powder is removed, the iron powder flows out through the outflow cylinder 51 of the tapping plate 5 and is sent to the lubrication section of the internal combustion engine.

[0016]

[Effect of the device]

 In the oil filter device with a built-in magnet according to the present invention, the filter paper cylinder member is inserted into the bottomed cylindrical casing, the opening of the casing is covered with the tapping plate, and the outflow port is installed substantially in the center of the tapping plate. At the same time, an inflow port is installed outside the outflow port, the outflow port is opened inside the filter paper tube member, and the inflow port is opened outside the filter paper tube member, and the lubricating oil is introduced into the inflow port. In the oil filter device that is made to intrude through the filter paper cylinder member and to be discharged from the outlet,

Since the magnet member is installed near the inside of the outlet of the tapping plate, iron powder having relatively large particles is removed by the filter paper tube member, and those that have not passed through the filter paper tube member are passed by the magnet member. It is absorbed and removed.

Therefore, when the oil filter device with a built-in magnet is used, the role of the magnet member is reduced as compared with the conventional one, so that it is easy to maintain the adsorption function for a long time, and as a result, the life of the oil filter device is shortened to the conventional one. It can be made longer.

If the magnet member is a cylindrical body that is connected to the inner edge of the outlet, the contact area of the lubricating oil in the magnet member becomes large, so that the iron powder in the lubricating oil can be easily adsorbed. It is a thing.

Further, when a required number of slits are formed in the cylindrical body, the contact area of the lubricating oil in the magnet member is further increased, so that the iron powder in the lubricating oil is more easily adsorbed.

[Brief description of drawings]

FIG. 1 is a partial cross-sectional view of an oil filter device with a built-in magnet according to the present invention.

FIG. 2 is a perspective view of another embodiment of the magnet cylinder according to the present invention.

FIG. 3 is a diagram of yet another embodiment corresponding to FIG.

FIG. 4 is a view on arrow IV in FIG.

[Explanation of symbols]

 C ... Oil filter device 1 ... Casing 21 ... Filter paper tube member 5 ... Tapping plate 51 ... Outflow tube (outflow port) 52 ... Inflow port 8 ... Magnet tube (magnet member) 81 ... Slit

Claims (5)

[Scope of utility model registration request] 1. A filter paper cylinder member is inserted into a bottomed cylindrical casing, an opening of the casing is covered with a tapping plate, and an outlet is installed at a substantially central portion of the tapping plate and outside the outlet. An inflow port is installed, the outflow port is opened inside the filter paper tube member, the inflow port is opened outside the filter paper tube member, and lubricating oil is introduced from the inflow port to pass through the filter paper tube member. An oil filter device with a built-in magnet, wherein a magnet member is installed in the tapping plate near the inside of the outlet. 2. The oil filter device with a built-in magnet according to claim 1, wherein the magnet member is a cylindrical body that is continuously provided on the inner edge of the outflow port. 3. The oil filter device with a built-in magnet according to claim 1, wherein a required number of slits are formed in the cylindrical body. 4. The oil filter device with a built-in magnet according to claim 3, wherein the slit is provided along an axial direction of the cylindrical body. 5. The oil filter device with a built-in magnet according to claim 3, wherein the slit is provided perpendicularly to the axial direction of the cylindrical body.