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filter unit

A filter and filter housing technology, applied in membrane filters, cartridge filters, filtration and separation, etc., can solve problems such as laborious removal, and achieve the effect of simple disassembly and easy installation

Active Publication Date: 2018-09-28
MAHLE INT GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, during maintenance, it can occur that the conventional holding force of the clip connection between the cover and the ring filter element is not sufficient to pull the latter out of the filter housing when the cover is loosened, so that it remains in it and requires a lot of effort. removed from it

Method used

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Embodiment Construction

[0024] according to figure 1 A filter device 1 according to the invention, which can be configured, for example, as a fuel or lubricating oil filter in a general vehicle, has a filter housing pot 2 and a cover 3 that can be screwed onto it (see also image 3 and Figure 4 ), and the annular filter element 4 arranged therein. The annular filter element 4 has an upper end disk 5 and a lower end disk 6 , wherein a water collecting space 7 with axially protruding pins 8 is arranged on the lower end disk 6 . When the filter device 1 is installed, the latter engages into the outflow channel 9 and closes it off. According to the invention, the annular filter element 4 is connected to the housing 3 via a first thread 10 . The first thread 10 is here formed by a dome 11 which is obtained from the ring filter element 4 (see also Figure 2 to Figure 5 ) of the upper end disc 5 protruding axially in the center, with an external thread 13 interrupted by the idle channel 12 and a spring...

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Abstract

The invention relates to a filter device (1) with a filter housing with a filter housing pot (2) and with a cover that can be screwed onto the latter and with an annular filter element (4) (3), the annular filter element (4) has an axially protruding pin (8) for closing the outflow channel (9). Essential to the invention is that the ring filter element (4) is connected to the housing (3) via a first thread (10) having a dome (11) from which the ring filter element (4) centrally and axially protruding with an external thread (13) interrupted by an idle channel (12) and with a hollow cylindrical spring element (14) protruding axially from the housing (3) and Arranged thereon are internally threaded portions (15) designed to be complementary to the externally threaded (13), each internally threaded portion (15) extending over a longer circumferential portion than the idle channel (12), and the first thread (10 ) is designed to run opposite to the second thread (16) arranged between the filter housing pot (2) and the cover (3).

Description

technical field [0001] The invention relates to a filter device having a housing with a filter housing pot and with a cover which can be screwed onto the latter. The invention also relates to an annular filter element for such a filter device. Background technique [0002] Conventional filter arrangements are sufficiently and variedly known. [0003] Known from DE19707132A1 is a filter device having a housing with a filter housing pot and with a cover that can be screwed onto the latter, and with an annular filter element arranged therein, wherein the At least one snap-on device, by means of which a detachable snap-on connection can be produced between the filter element and at least one of the housing parts. This makes it possible, in particular, to mount or remove the filter element respectively more simply, without direct contact with the filter element being required to do so. [0004] A liquid filter for an internal combustion engine with a filter housing which is co...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D35/153B01D35/16F02M37/22F01M11/03
CPCB01D35/153B01D35/16F01M11/03F02M37/22B01D2201/4092B01D2201/4007B01D2201/305B01D2201/291F02M37/24F02M37/42F02M37/32B01D27/08B01D35/30B01D35/301B01D35/306B01D2201/306B01D2201/4015B01D2201/4076B01D2201/4084
Inventor 安德烈亚斯·科尔曼斯特凡·梅尔特汉内斯·苏茨契斯基
Owner MAHLE INT GMBH