JPH061711U - Oil drain plug for internal combustion engine - Google Patents

Abstract

(57) [Summary] [Object] The present invention provides an oil drain plug capable of effectively removing wear powder mixed in lubricating oil, particularly fine wear powder that cannot be removed even by a filter. [Constitution] In this invention, the abrasion powder 5 can be attached by the attraction / adsorption force of the magnet 3 provided on the plug 1 and taken out when the lubricating oil 4 is removed as waste oil.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a drain plug attached to an oil reservoir provided in a part of a flow path through which lubricating oil circulates for lubricating an internal combustion engine.

[0002]

[Prior art]

 For example, in an engine, a circulation path through which lubricating oil passes is formed so that the lubricating oil (engine oil) circulates in the cylinder in order to reduce the coefficient of friction of the piston that moves in the cylinder and improve slidability. ing. Impurities such as wear iron powder generated at the sliding part between the piston and the cylinder may be mixed in this lubricating oil. Etc. are removed and the lubricating oil is changed regularly or as needed.

[0003]

[Problems to be solved by the device]

 By the way, when filtering with this filter, wear particles finer than the mesh of the filter are not filtered and circulate with the lubricating oil, which may significantly impair the wear resistance of sliding parts. is there. Therefore, in view of the above-mentioned conventional drawbacks, the present invention can effectively remove wear particles and the like mixed in the lubricating oil, and thus extend the life of the internal combustion engine and further extend the life of the lubricating oil. An object of the present invention is to provide an oil drain plug for an internal combustion engine that can be designed.

[0004]

[Means for Solving the Problems]

 That is, the present invention is directed to a drain plug attached to an oil reservoir provided in a part of a flow path through which lubricating oil circulates to lubricate an internal combustion engine. It has a magnetic force.

[0005]

[Action]

 In this invention, the wear particles generated in the sliding parts of the internal combustion engine are magnetic materials and can be attracted and adsorbed by magnetic force, and the drain plug having magnetic force makes the wear particles finer than the eyes of the filter. Can be adsorbed, and the lubricating performance can be efficiently restored by removing the abrasion powder adsorbed on the drain plug.

[0006]

【Example】

 An embodiment of the present invention will be described below with reference to the accompanying drawings. FIG. 1 shows an oil drain plug for an internal combustion engine according to the present invention. This oil drain plug 1 has a male screw of a screw 10 constituting a plug of an oil sump 2 (see FIG. 2). A magnet 3 made of a ferromagnetic material is fixed to one end surface of the portion 10A. The magnet 3 has an outer diameter slightly smaller than the outer diameter of the threaded portion 10A of the oil drain plug 1, and is fixed to the oil drain plug 1 with an adhesive or the like. Therefore, according to this embodiment, as shown in FIG. 2, even if the fine magnetic abrasion powder 5 passing through the filter eyes is mixed in the lubricating oil 4, the magnet 3 attached to the oil drain plug 1 is The abrasion powder 5 can be sucked and adsorbed. The adsorbed abrasion powder 5 can be taken out at the same time when the oil drain plug 1 is removed from the oil sump 2 (when the lubricating oil is taken out as waste oil) at the time of replacing the lubricating oil 4, and by a waste cloth or the like. It can be reused by wiping off the magnet 3 part.

Next, another embodiment according to the present invention will be described. FIG. 3 shows a second embodiment according to the present invention. An oil drain plug 1'of this embodiment has a threaded portion 10A 'formed with a threaded hole 10B' in which a female thread is formed. The external thread of the magnet 3'is threadedly attached to the hole 10B 'so as to be attached. Therefore, according to this embodiment, for example, only the magnet 3'to which abrasion powder is adsorbed can be easily removed from the oil drain plug 1'and replaced with a new one.

[0008]

[Effect of device]

 As described above, according to the oil drain plug according to the present invention, wear powder generated in the sliding portion of the internal combustion engine is magnetically attracted and adsorbed to the oil drain plug. Since even fine particles that do not cover the filter can be adsorbed, it is possible to prevent troubles such as mixing into the lubricating oil and premature wear of the cylinder or piston, and extending the replacement period of the lubricating oil. It is also possible to obtain a very remarkable effect for the internal combustion engine.

[Brief description of drawings]

FIG. 1 is a side view showing an oil drain plug of a first embodiment according to the present invention.

FIG. 2 is an explanatory view showing the operation of the oil drain plug shown in FIG.

FIG. 3 is a partial cutaway view showing an oil drain plug of a second embodiment according to the present invention.

[Explanation of symbols]

 1,1 'Oil train plug 2 Oil sump 3,3' Magnet

Claims (1)

[Scope of utility model registration request] 1. A drain plug attached to an oil reservoir provided in a part of a flow path for circulating lubricating oil for lubricating an internal combustion engine, wherein the drain plug adsorbs magnetic powder such as iron mixed in the lubricating oil. An oil drain plug for an internal combustion engine, which has a magnetic force.