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Filter device for filtering particles contained in fuel of diesel engine for use in motor vehicle, has filter medium with drainer that is coupled to housing by latching connection, for discharging filtered water from filter device

A filter and drain technology, applied in the direction of cartridge filter, filter loop, filter separation, etc., can solve the problems of easy interference and expensive solutions, and achieve the effect of reliable work

Inactive Publication Date: 2013-03-06
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this solution is that in the event of a malfunction of the electronics, the water on the drain is not emptied
In addition to being susceptible to interference, this solution is also relatively expensive due to the associated control electronics

Method used

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  • Filter device for filtering particles contained in fuel of diesel engine for use in motor vehicle, has filter medium with drainer that is coupled to housing by latching connection, for discharging filtered water from filter device
  • Filter device for filtering particles contained in fuel of diesel engine for use in motor vehicle, has filter medium with drainer that is coupled to housing by latching connection, for discharging filtered water from filter device
  • Filter device for filtering particles contained in fuel of diesel engine for use in motor vehicle, has filter medium with drainer that is coupled to housing by latching connection, for discharging filtered water from filter device

Examples

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Embodiment Construction

[0031] exist Figures 1 to 4 An exemplary embodiment of a filter device 10 is shown, which comprises a hollow cylindrical filter housing 12 with a cylindrical filter element 14 arranged therein. The filter element 14 serves to separate foreign matter and water 18 from fuel 16 passing through the filter device 10 . The separated water 18 collects below the fuel 16 on the bottom of the filter housing 12 due to its relatively high specific density.

[0032] In order to detect the water level inside the filter housing 12 and to drain the water when the water level is high, a drain 20 is arranged below on the filter housing 12 . The drain 20 comprises a rod-shaped drain housing 22 with a circular cross section, which is sealed relative to the filter housing 12 by means of an annular seal 24 .

[0033] A water sensor 26 is arranged in the drain housing 22 on the end region facing the filter housing 12 . The water sensor 26 consists of two contact pins 28 and 30 , to which a volta...

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Abstract

The filter device (10) has a filter element (14) that is located in a filter housing (12) for filtering foreign substances and water (18) from filter housing through filter medium (16). The filter medium has a drainer (20) that is coupled to filter housing by a latching connection, for discharging the filtered water from filter device. The latching connection is formed with a detent element at primary position. The drainer is fixed to the filter housing and is moved to a secondary position, such that the drainer is released.

Description

technical field [0001] The invention relates to a filter device comprising: a filter housing and a filter element arranged in the filter housing for filtering foreign matter from a medium flowing through the filter housing and water; and a drain for draining filtered water from said filter unit. Background technique [0002] Filter arrangements of the aforementioned type are used, for example, in motor vehicles powered by diesel engines as fuel filters for filtering out particles contained in diesel fuel and for separating water from diesel fuel. The filtering of the fuel is carried out so that the fuel does not cause disturbances or damage, such as corrosion, in particular in the injection system of the associated internal combustion engine. Such damage may be caused by water retained in the fuel. For this reason, DIN EN 590 also specifies a maximum permissible water content in diesel fuel of less than 200 mg / l. [0003] In order to achieve such limit values, filter elem...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02M37/22B01D27/08B01D36/00F02M37/28F02M37/32
CPCB01D36/006B01D36/005F02M37/221F02M37/26F02M37/28F02M37/32
Inventor M·J·加西亚瓦尔加斯
Owner ROBERT BOSCH GMBH
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