JPH034734Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field: The present invention relates to an adapter used to construct a center bolt type oil filter using the main body of a spin-on type oil filter for an automobile engine.

Conventional technology: There are two types of automotive oil filters: spin-on type and center bolt type.They consist of a filtration part that houses a filtration element and a main body part to which the filtration part is attached.
There are the following structural differences between the two. In other words, in spin-on type oil filters, a safety valve is often provided on the side of the filtration unit to allow oil to flow without passing through the filtration element if the filtration element becomes clogged. On the other hand, in the center bolt type, a safety valve is provided on the side of the main body, and in the spin-on type, there is of course no screw hole into which the center bolt is screwed.

Spin-on type filters, particularly those in which a safety valve is not provided within the main body, have the advantage that the flow path structure of the main body is simple and that the filtration action section can be easily attached to the main body. However, due to the condition of the road surface on which the car is driven or the regulations established by the national circumstances, the installation of the filtration unit to the main unit may be a little complicated, but the center guarantees a strong installation condition. A bolt type may be desired.

Problems to be solved by the invention: Having both a spin-on type and a center bolt type is undesirable from the point of view of vehicle production and service. The present invention is a spin-on type oil filter which has the advantage that the main body has a simple flow path configuration and the filtration unit can be easily attached to the main body. It is intended to solve the problems encountered when making it available for use in the production of products.

Means for solving the problem: The present invention provides an adapter that solves the above problem, and the adapter according to the present invention fits into the spin-on male screw part of the filtration action part of the spin-on type oil filter to the main body part. The female thread to be fitted and the female thread to which the center bolt for attaching the filtration action part to the main body of a center bolt type oil filter is fitted are connected to the center part of one side and the center part of the other side. The filter is provided with an abutment surface against which the main body abuts, an abutment surface against which the outer shell case of the filtration action part abuts, and a pressing surface abutment against the filtration element, and a safety valve is built-in. , a flow path that communicates the unfiltered oil flow path on the main body side with the unfiltered oil flow path in the filtration action section, and a flow path for oil filtration in the filtration action section that communicates with the filtered oil flow path on the main body side. The invention is characterized in that it is provided with a flow path for causing

Function: The adapter according to the above-mentioned invention is attached to the main body of a spin-on type oil filter, and a "safety valve that allows oil to flow without passing through the filter element when the filter element becomes clogged" is attached to the main body. At the same time, the filtration action part of the center bolt type oil filter can be attached to the side of the main body part. Figure 1 shows a spin-on type oil filter, which includes a main body part 1, a filtering part 2, and a male thread part 3 of the filtering part that is screwed in by a spin operation.
, a filtration element 4, a flow path 5 connected to the oil pump, and an outflow flow path 6 for oil that has finished filtering.
A safety valve 7 is shown. As can be understood from this figure, the main body part 1 of the spin-on type oil filter cannot be used as the main body part of the center bolt type oil filter as it is, but by adding the adapter according to the present invention, the main body part 1 can be made into a center bolt type oil filter body part. It can serve as the main body of a bolt-type oil filter.

Embodiment: Fig. 2 shows the adapter 8 according to the present invention, and Fig. 3 shows the adapter 8 shown in Fig. 2 attached to the main body of the spin-on type oil filter shown in Fig. 1, and the main body of the center bolt type oil filter. Show what is configured.

In FIG. 2, 9 is a female thread that is fitted into the spin-on male threaded portion 3 (see FIG. 1) of the filtration action section 2 on the main body 1 of the spin-on type oil filter, and 10 is the female thread 3 of the main body 1 of the spin-on type oil filter. This is the surface that collides with the The female thread 9 is provided at the center of the surface 10. Reference numeral 11 denotes a surface that is brought into contact with an outer shell case (not shown) of the filtration action portion of the center bolt type oil filter.

The adapter 8 is provided with a female thread 12 coaxial with the female thread 9 on the installation side of the filtration unit (the side opposite to the installation side of the main body 1), and this female thread 12 is provided with a center bolt type oil thread. The center bolt 13 of the filter is fitted.

In the case shown in FIG. 1, the oil that has been filtered in the filtration section is allowed to enter the internal space of the male threaded section of the main body section 1 in a straight line, but when the adapter 8 is used, the adapter 8 Since the center bolt 13 is fitted into the upper female thread 12, the adapter 8 is provided with a flow path 14 through which the filtered oil flows. 15 is this flow path 14
This is a channel for sending unfiltered oil to the filtering section provided therewith.

The adapter 8 forms an oil filter by combining the main body 1, which is not provided with a safety valve, and a center bolt type filtration part, which is not provided with a safety valve. A valve 16 is built-in. The adapter 8 is also provided with a holding surface 17 which abuts against the support of the filtering element in the filtering section.

Effects of the invention: This invention addresses the circumstances pointed out earlier regarding the two types of oil filters, and uses the main body of the spin-on type oil filter, which has a simple flow path configuration, while easily creating a center bolt type oil filter. This brings about the effect that it can be configured as follows.

[Brief explanation of the drawing]

Fig. 1 is an explanatory drawing of a spin-on type oil filter, Fig. 2 is a vertical sectional view of the adapter according to the present invention, and Fig. 3 is a vertical view showing the adapter shown in Fig. 2 attached to the main body of the oil filter shown in Fig. 1. FIG. DESCRIPTION OF SYMBOLS 1... Body part, 2... Filtration action part, 3... Male thread part, 4... Filtration element, 5... Channel connected to oil pump, 6... Filtered oil outflow channel,
7... Safety valve, 8... Adapter, 9...
...A female thread into which the male threaded portion 3 of the main body is fitted;
DESCRIPTION OF SYMBOLS 10...Abutment surface with respect to the main body part, 11...Abutment surface with the outer shell case of the filtration action part, 12...Female thread for fitting of center bolt, 13...Center bolt, 14...Filtered oil flow path, 15...
...Flow path for unfiltered oil, 16... Safety valve, 17... Pressing surface for the support material of the filtration element.

Claims (1)

[Scope of utility model registration request] A female thread 9 that fits into the male threaded part 3 for spin-on of the filtration action part to the main body of a spin-on type oil filter, and a center bolt 13 for attaching the filtration action part to the main body of a center bolt type oil filter. Female threads 12 into which the filtration action part is fitted are provided at the center of one side and the center of the other side, and the abutment surface 10 with which the main body abuts and the outer shell case of the filtration action part abut. Abutting surface 1
1 and the holding surface 1 that is brought into contact with the filtration element part.
7, a safety valve 16 is built in, and a flow path 15 that communicates the unfiltered oil flow path on the main body side with the unfiltered oil flow path in the filtration action section and the filtered oil flow path in the filtration action section are provided. An adapter for an oil filter of an automobile engine, characterized in that a flow path 14 is provided for communicating the flow path with a flow path for filtered oil on the main body side.