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Oil filter

A technology of oil filter and filter, which is applied in the direction of membrane filter, filtration separation, chemical instruments and methods, etc. It can solve the problems of inner cylinder distortion, inefficiency, time loss, etc., and achieve the effect of stable manufacturing

Inactive Publication Date: 2008-03-19
TOYO ROKI MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] However, when the inner cylinder is inserted into the filter device, the inner cylinder may be twisted, and in an unfavorable situation, the upper end portion of the inner cylinder may be disengaged from the fitting portion.
[0010] In this unfavorable case, it is necessary to assemble the cover to the base body again after installing the inner cylinder to the cover, which will cause a time loss in assembling the oil filter, thus being inconvenient and inefficient for the manufacture of the oil filter
[0011] In addition, when the inner cylinder is positioned in an inclined state where the inner cylinder disengages from the fitting portion, the oil filter cannot perform its original function

Method used

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Embodiment Construction

[0022] Preferred embodiments of the oil filter will be described below with reference to the accompanying drawings, wherein the oil filter is applied to an engine of an automobile. It should be further noted that the terms "upper", "lower", "right", "left" and the like are used in the exemplary state in the drawings or the actual installation state of the oil filter.

[0023] Referring to FIG. 1 , an oil filter 1 is provided with a filter housing 2 and a filter device 3 accommodated in the filter housing 2 . The filter housing 2 consists of a base body 4 and a cover 5, which are assembled in the form of a sealed container.

[0024] The base body 4 is provided with a circular cylinder member (cylindrical portion) 4a, on the inner peripheral surface thereof is formed an internal thread portion (thread portion) 4b connected to the top (front) end of the mounting portion 5a formed to the cover 5 The external thread part (thread part) 5b on the side is engaged. According to this ...

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Abstract

The present invention discloses an oil filter including a base body; a cover mounted to the base body to be detachable and combined with the base body to form a filter case; a cylindrical filter element housed in the filter case; and an inner cylinder provided in the filter case inside the filter element and attach to the cover. The cover has a head to which a fitting is formed to extend inside the filter housing, and the inner cylinder is fitted with one axial end of the inner cylinder to the outside of the fitting to be detachable. The inner cylinder is provided with a stopper, which protrudes in its radially outward direction and has a tip that abuts against the inner surface of the filter housing, thereby preventing the inner cylinder from falling off, the stopper is provided on the head of the cover and the filter between devices.

Description

[0001] Cross Reference Related Applications [0002] This application is based upon and claims the benefit of priority from Japanese Patent Application No. 2006-247690 filed on September 13, 2006, the entire contents of which are hereby incorporated by reference. technical field [0003] The invention relates to oil filters for internal combustion engines such as automobiles. Background technique [0004] Generally, an oil filter is provided with a filter housing and a filter element arranged in the filter housing, and the filter housing is composed of a base body and a cover in the form of a sealed container. [0005] An oil filter of the above type, wherein the filter element is housed in the base, and the inner cylinder is disposed inside the filter element so as to be aligned with the axial direction of the filter element. [0006] The filter element has a cover. The fitting portion extends downward from the inner surface of the upper end portion of the cover, and the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01M11/03
CPCB01D35/147B01D2201/305B01D2201/4084B01D2201/0415B01D35/153B01D35/16
Inventor 矢野健二
Owner TOYO ROKI MFG CO LTD