Novel filter assembly

A filter and assembly technology, applied in the installation/connection of lubricant purification devices, lubricating parts, pressure lubricants, etc., can solve the problem of small effective area of ​​filter screen, low rigidity of filter screen 3, and poor quality of oil filtration and other problems to achieve the effect of avoiding the rotation and dropping of the filter screen, simple manufacturing process and increasing the filtering capacity

Active Publication Date: 2011-05-18
WEICHAI HEAVY MACHINERY
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  • Abstract
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Problems solved by technology

From the principle of six-point positioning, this circular structure is difficult to limit the degree of freedom of rotation
Therefore, this structure often loses the screen due to the rotation of the filter screen 3 during use, resulting in poor oil filtration quality.
[0005] In addition, due to the low rigidity of the filter screen 3, the filter screen 3 will appear concave and loose after being riveted with the oil pipe 2
[0006] At the same time, limited by the flaring diameter (the national standard stipulates that the flaring diameter of the pipe should not exceed 15% of the pipe diameter, otherwise flaring and cracking will occur), the effective area of ​​the filter is relatively small, resulting in a relatively small oil pipe flow rate. As a result, the oil suction flow is relatively insufficient

Method used

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Embodiment Construction

[0019] The present invention will now be described with reference to the drawings, wherein like reference numerals designate like or similar devices throughout.

[0020] image 3 is a schematic diagram of the structure of the filter assembly according to the present invention. and figure 1 The prior art strainer assembly shown is similar, image 3 The shown filter collector assembly of the present invention also includes a flange 1 , an oil pipe 2 and a filter screen 3 pressed together with the oil pipe.

[0021] and figure 1 The prior art filter assembly shown is different in that, image 3 The shape of the press joint between the oil pipe 2 and the filter screen 3 included in the filter collector assembly of the present invention shown is non-circular, thereby limiting the degree of freedom of rotation of the filter screen 3 relative to the oil pipe 2 .

[0022] According to an embodiment of the present invention, the non-circular shape is an ellipse, such as Figure 4...

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Abstract

The invention provides a novel filter assembly comprising a flange, an oil pipe and a filter screen in press fit with the oil pipe, wherein the press fit part of the oil pipe and the filter screen is noncircular. The invention can avoid the rotating and the falling off of the filter screen rotates under then condition that installing is not influenced.

Description

technical field [0001] The present invention generally relates to a filter assembly, and more particularly relates to a novel diesel engine filter assembly. Background technique [0002] figure 1 It is a schematic diagram of the structure of the filter assembly of the prior art. Such as figure 1 As shown, the filter assembly includes a flange 1, an oil pipe 2 and a filter screen 3. [0003] The structure of the diesel engine filter assembly in the prior art is that the circular filter screen 3 is press-fitted on the oil pipe 2 after the pipe fittings have been flared, and then welded with the flange 1 . [0004] figure 2 yes figure 1 The cross-sectional view of the filter assembly in the direction A-A. It should be noted that figure 2 The cross-sectional view of FIG. 2 only shows the parts related to the press joint of the oil pipe 2 and the filter screen 3, while omitting other parts that are not very relevant. Such as figure 2 As shown, the shape of the joint b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01M11/03
Inventor 王延欣王跃臻李斌刘建新
Owner WEICHAI HEAVY MACHINERY
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