Filter arrangement

Abstract

Filter arrangement ( 1 ), comprising a filter ( 2 ) and a sensor device ( 3 ) which is arranged downstream of the filter ( 2 ) for monitoring the service life of the filter ( 2 ), having at least one measuring sensor ( 4 ) for detecting the flow velocity of the fluid ( 5 ) which flows through the filter, wherein the sensor device ( 3 ) has a further measuring sensor ( 6 ) for measuring the air humidity of the fluid ( 5 ) which flows through the filter.

1 . A filter arrangement, comprising a filter and a sensor device disposed downstream of the filter for monitoring the service life of the filter, having at least one first measuring sensor for detecting the flow velocity of the fluid flowing through the filter, characterized in that the sensor device comprises a further measuring sensor for measuring the moisture of the fluid flowing through the filter. 
     
     
         2 . The filter arrangement according to  claim 1 , characterized in that the sensor device comprises a further measuring sensor for measuring the temperature of the fluid flowing through the filter. 
     
     
         3 . The filter arrangement according to  claim 1 , characterized in that the sensor device is configured as a preassembled unit. 
     
     
         4 . A filter arrangement according to  claim 1 , characterized in that the sensor device is configured as an injection molded part. 
     
     
         5 . A filter arrangement according to  claim 1 , characterized in that the sensor device is disposed at a distance to the filter. 
     
     
         6 . A filter arrangement according to  claim 1 , characterized in that the filter comprises an injection molded frame. 
     
     
         7 . A filter arrangement according to  claim 1 , characterized in that the sensor device is fastened to the filter non-positively or positively. 
     
     
         8 . A filter arrangement according to  claim 1 , characterized in that the sensor device is connected to the filter by material bond. 
     
     
         9 . The filter arrangement of  claim 1  positioned as a cabin air filter of a motor vehicle. 
     
     
         10 . The filter arrangement of  claim 1  positioned as an inflow of a fuel cell.