JPH0710407U - Oil filter - Google Patents

Abstract

(57) [Abstract] [Purpose] An object of the present invention is to provide a filter that simultaneously drains oil on the outside and oil on the inside of a dirty filter element in the filter. A filter element (3) is housed in a cylindrical filter case (1), and a guide tube (8) penetrating the filter case (1) and the filter element (3) causes the filter case (1) to be clamped and fixed to a base part (2), and Guide tube 8
In a fuel or lubricating oil filter for an internal combustion engine having a drain plug 16 detachably attached to the lower end of the guide tube 8, the guide tube 8 has a large number of holes 10 communicating with the inside of the filter element 3, a filter case 1 and a filter element. A through hole 11 communicating with the lower ends of the three holes is formed, and the drain plug 16 can open and close the multiple holes 10 and the through hole 11.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an oil filter mounted on a fuel system of an internal combustion engine or lubricating oil, and more particularly to an oil filter in which oil in a filter case can be discharged freely.

[0002]

[Prior art]

 A filter provided in a fuel system or a lubrication system of an internal combustion engine for automobiles has a cylindrical chrysanthemum-shaped filter element inside a main body consisting of a cylindrical filter case and an upper cover, and a drain device at the bottom of the filter case. It is provided and configured. As such a filter, for example, in the device disclosed in Japanese Utility Model Publication No. 56-43369, when the filter element is replaced, the drain device drains the oil in the filter case before the filter element is replaced. ing. However, in reality, there were technical problems described below.

[0003]

[Problems to be solved by the device]

 That is, when the filter element of the above type reaches the usage limit and the filter element is replaced, the drain device drains the oil outside the filter element in the filter case before replacing the filter element. I do. However, the inside of the filter element was also filled with oil in the filter, and there was a problem that the oil inside this filter element leaked out during the replacement work of the filter element and polluted the workplace.

This invention solves the above problems, and the purpose thereof is to discharge the oil on the outside of the dirty filter element and the oil on the inside of the dirty filter element in the filter at the same time so that the filter element can be replaced. The purpose is to provide an oil filter that can prevent oil from leaking out and polluting the workplace.

[0005]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the present invention has a filter element housed in a cylindrical filter case, and the filter case and a hollow guide tube penetrating the filter element clamp the filter case to the base. In the oil filter for fuel or lubricating oil of an internal combustion engine, which has a drain plug detachably attached to the lower end of the guide pipe, the guide pipe includes a multiplicity of holes communicating with the inside of the filter element, and a filter. A through hole communicating with the lower end of the element is formed, and the drain plug can open and close the multiple hole and the through hole.

[0006]

[Action]

 When the filter of the present invention is attached to the internal combustion engine, the oil inside and outside the filter element can be drained at the same time by removing the drain device, and when the filter element is replaced, the oil leaks to the outside and the workplace is opened. You can prevent it from getting dirty.

[0007]

【Example】

 Hereinafter, a preferred embodiment of the present invention will be described. FIG. 1 shows an oil filter according to an embodiment of the present invention. The oil filter comprises a filter element 3 having a cylindrical shape or a chrysanthemum cross section inside a main body composed of a cylindrical filter case 1 and a base portion 2. Consists of An oil inlet hole 4 and an oil outlet hole 5 are provided in the base portion 2, while the filter case 1 is tightened and fixed to the base portion 2 via a packing 6 at the center of the filter case 1 and the filter element 3 is provided. A hollow guide tube 8 that fixes and supports the filter case 1 through a packing 7 is supported by penetrating an opening 1a formed in the bottom portion of the filter case 1.

The guide tube 8 communicates with the multiple holes 10 that communicate between the inside of the filter element 3 and the inside of the guide tube 8 and the lower end surface 3 a of the filter element 3 (that is, A through hole 11 communicating with the outside is formed. Further, the guide tube 8 has the tip screw portion 12 screwed to the base portion 2, and the step portion 12a formed on the base portion 2 contacts the case 1 to integrally support the filter case 1 and the base portion 2. There is. Here, by loosening the screw connection of the guide tube 8, the filter case 1 and the base 2 can be removed, and as a result, the filter element 3 can be removed from the inside of the filter case 1.

A female screw 9 is formed inside the lower end of the guide tube 8, and a drain plug 16 having a male screw 15 formed outside is screwed to the female screw 9 via a packing 17. The upper packing 13 provided on the drain plug 16 prevents oil from flowing out from the multiple holes 10 and the lower packing 14 prevents oil from flowing out from the through hole 11.

In the oil filter configured as described above, dirty oil enters between the filter case 1 and the filter element 3 through the inlet hole 4, and the oil that is filtered and cleaned by the filter element 3 passes through the outlet hole 5 to the outside of the oil filter. And is supplied to the internal combustion engine.

When the filter element 3 reaches the usage limit and the filter element 3 is to be replaced, the drain plug 16 is removed from the lower end of the guide tube 8 to open the upper packing 13 and the lower packing 14, and the filter element 3 is opened from the multiple holes 10. The oil on the inner side flows out from the oil on the outer side of the filter element 3 through the through hole 11 and is drained from the lower end of the guide tube 8. After all the oil in the oil filter has flowed out, the guide tube 8 is loosened and the filter element 3 is removed together with the filter case 1, so that the oil can be prevented from being scattered in the work place.

[0012]

[Effect of device]

 As described above in detail with reference to the embodiments, in the oil filter according to the present invention, when the filter element reaches the limit of use and the filter element is replaced, the drain plug is removed from the lower end of the guide tube to open the upper packing and the lower packing. The oil in the filter element is discharged through the multiple holes, the oil on the outside of the filter element flows out through the through holes, drains from the lower end of the guide pipe, and then loosens the guide pipe after all the oil in the oil filter flows out. Since the filter element is removed together with the filter case, oil can be prevented from scattering in the workplace.

[Brief description of drawings]

FIG. 1 is a sectional view of an oil filter according to the present invention.

FIG. 2 is a sectional view of the oil filter with a drain plug removed.

[Explanation of symbols]

 1 Filter Case 2 Base 3 Filter Element 8 Guide Tube 10 Multiple Holes 11 Through Hole 16 Drain Plug

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Office reference number FI technical display area F02M 37/22 G

Claims (1)

[Scope of utility model registration request] 1. A filter element is housed in a cylindrical filter case, and a hollow guide tube penetrating the filter case and the filter element causes the filter case to be clamped and fixed to a base portion so as to hang down. In a fuel or lubricating oil filter for an internal combustion engine having a drain plug removably attached to a lower end of the guide tube, the guide tube includes a multiplicity of holes communicating with the inside of the filter element, and a through hole communicating with the lower end of the filter element. And the drain plug can open and close the multiple holes and the through holes.