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Filter element with multi-stage water-separating action and with bayonet connection, and fuel filter having a filter element of said type

A filter element and filter technology, applied in membrane filters, fixed filter element filters, filter circuits, etc., can solve problems such as unfavorable maintenance, filter element consumption, etc., to reduce maintenance costs, shorten motor start-up time, avoid trash effect

Active Publication Date: 2016-10-05
MANN HUMMEL GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the known filter elements for multi-stage water separation are relatively unfavorable for maintenance due to their design.
In particular, it is complex to remove the filter element to be replaced from the filter housing, since the filter element to be replaced is usually completely sunk in the filter housing

Method used

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  • Filter element with multi-stage water-separating action and with bayonet connection, and fuel filter having a filter element of said type
  • Filter element with multi-stage water-separating action and with bayonet connection, and fuel filter having a filter element of said type
  • Filter element with multi-stage water-separating action and with bayonet connection, and fuel filter having a filter element of said type

Examples

Experimental program
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Effect test

Embodiment Construction

[0040] figure 1A first fuel filter 10 is shown with a first filter element 12 for multi-stage cleaning of fuel. The first filter element 12 is arranged in a filter housing 14 of the first fuel filter 10 . The filter housing 14 has a filter bowl or filter housing 16 . A cover 18 of the filter housing 14 is screwed onto the filter housing 16 .

[0041] The first filter element 12 has a ventilation tube 20 . Air can be conducted from the first fuel filter 10 via the ventilation line 20 back into the canister (not shown) via the return 22 . A non-return valve 26 is arranged on an end 24 of the ventilation line 20 opposite the return flow 22 . The non-return valve 26 opens in the direction of the return 22 or arrow 28 at an excess pressure of greater than approximately 0.4 bar. Non-return valve 26 can thus be easily opened, so that air can be led off quickly from first fuel filter 10 . In this case, the air is removed in the direction of the arrow 28 . The non-return valve 2...

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Abstract

The invention relates to a filter element (86) with multi-stage cleaning action, and to a fuel filter (84) having a filter element (86) of said type. The filter element (86) has a particle filter medium, a coalescer medium, a sediment gap (98), and a final separator screen. The filter element (86) is arranged in a filter housing (88) of the fuel filter (84), which filter housing comprises a filter housing body (110) and a cover (106) screwed onto the filter housing body (110). For convenient exchange of the filter element (86), the fuel filter (84) is designed such that, when the cover (106) is unscrewed from the filter housing body (110), at least one bayonet projection (112) of the filter element (86) engages behind a corresponding bayonet receptacle (114), such that the cover (106) can be removed together with the filter element (86) arranged thereon by way of the bayonet connection. The filter element (86) is preferably a filter element (86) with a ventilation pipe for the ventilation of the fuel filter (84).

Description

technical field [0001] The invention relates to a filter element for a fuel filter of a motor vehicle. Furthermore, the invention relates to a fuel filter with such a filter element. Background technique [0002] A filter element for filtering fuel of a motor vehicle is known from DE 10 2011 078 362 A1. The filter element has a granular filter medium and an end separating screen for separating the water. The separated water is collected in the water collection chamber. [0003] Venting nozzles for liquid filters are known from EP 1 356 199 B1. [0004] US 2009 / 0301950 A1 discloses a filter element which can be fastened to the cover of a filter housing by means of a bayonet connection. [0005] Furthermore, EP 2 201 993 A1 discloses that an exchangeable filter element is fastened to the bowl of the filter housing by means of a bayonet connection. [0006] Finally, US 2011 / 0017657 A1 discloses different sealing possibilities of the filter element relative to the channel o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D29/11B01D35/153B01D36/00F02M37/24F02M37/34F02M37/42F02M37/48F02M37/54
CPCB01D35/153B01D35/16B01D36/001B01D29/21B01D2201/0415B01D2201/291B01D2201/4015B01D2201/4084B01D2201/347B01D36/003B01D29/11B01D2201/34F02M37/24A47G23/04A47G23/06A47J39/006F02M37/34F02M37/42F02M37/48F02M37/54
Inventor G.约克沙斯M.魏因多夫M.法伊特
Owner MANN HUMMEL GMBH
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