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Fluid filter

A technology of liquid filter and filter housing, which is applied in the direction of membrane filter, cartridge filter, filtration and separation, etc., and can solve the problem that the liquid filter is difficult to obtain the filtering effect, etc.

Inactive Publication Date: 2010-12-01
MAHLE INT GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Of course, when the liquid filter is ready to operate, the discharge channel must be closed, because if the discharge channel is not closed, the clean side and the dirty side of the annular filter element will communicate with each other, so that it is difficult for the liquid filter to get its filter effect

Method used

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Examples

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Embodiment Construction

[0018] according to figure 1 , the liquid filter 1 of the present invention comprises a filter housing cover 2, which is only partly shown in the figure, and which has an intermediate block 3 arranged thereunder. The liquid filter 1 also includes a housing 4, figure 1 A sectional view of the housing 4 is shown in , and this housing can be screwed onto the element formed by the filter housing cover 2 and the intermediate block 3 via a threaded connection 18 . The filter housing cover 2 forms the boundary of the housing space 5 for the annular filter element 6, which in Figure 4 shown in . figure 1 Also shown is an intermediate block 3 placed between the filter housing cover 2 and the housing 4, wherein in the housing space 5, as shown, for example, in Figure 4 , the annular filter element 6 is placed in a vertical position.

[0019] In order to ensure the supply and discharge of filtered liquid to and from the liquid filter 1 at least one inlet channel 7 and one outlet ch...

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Abstract

The invention relates to a fluid filter (1) with a filter housing cover (2) delimiting a housing space (5), in which a ring filter element (6) is arranged, with at least one intermediate piece (3) which is arranged under the filter housing cover (2) and above the housing (4) when the filter housing cover (2) is screwed on to a housing (4), and with a housing-side inlet and outlet channel (7, 8). The fluid filter (1) also has a housing-side no-load operation channel (9), via which the housing space (5) can be emptied by removing the filter housing cover (2) and a closure mechanism (11) having a closure element (12) arranged in the intermediate piece (3) rotatably about a filter axis (10). The closure mechanism (11) is configured such that when the filter housing cover (2) is screwed on to the housing (4) it is fixed in a precisely defined rotational angle position, while the closure mechanism (11) is twisted when the filter housing cover (2) is unscrewed and at the same time is moved axially away from the housing (4).

Description

technical field [0001] The invention relates to a liquid filter, in particular to an oil filter for cleaning lubricating oil for internal combustion engines of automobiles. Background technique [0002] Liquid filters, in particular oil filters, typically comprise a part called an annular filter element, with which the liquid flowing through the liquid filter is filtered. Depending on the schedule of use, the filter element must be replaced in order to be able to ensure the filtering effect of the liquid filter. During replacement of the annular filter element, the liquid filter is opened, for example by removing the filter housing, to provide access to the annular filter element. Due to ever-increasing environmental requirements, the filter element replacement process must ensure that no liquid, especially oil, leaks into the environment. Accordingly, a conventional liquid filter has a housing which, in addition to an inlet channel, also includes an outlet channel, which ...

Claims

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Application Information

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IPC IPC(8): B01D27/10B01D35/30B01D35/16B01D35/153
CPCB01D2201/4023B01D35/153B01D2201/4084B01D2201/4076B01D27/106B01D35/16B01D35/306B01D2201/4007
Inventor 贝努瓦·蒙奇
Owner MAHLE INT GMBH
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