Patent ID: 7731845

Claim:
A fuel filter comprising: a filter housing having a bottom; an annular filter element arranged inside the filter housing, wherein between the bottom of the filter housing and a bottom area of the filter element a water collecting chamber is formed; wherein the filter element is comprised of a coalescing element and a particle filter element, wherein fuel flows radially from an interior of the coalescing element to an exterior of the coalescing element and wherein fuel flows radially from an exterior of the particle filter element to an interior of the particle filter element, wherein the interior of the coalescing element is a raw chamber and the interior of the particle filter element is a clean chamber; a riser tube extending through the clean chamber and the raw chamber from the bottom of the filter housing to a top of the filter housing, wherein the riser tube comprises a radially outer tube and a radially inner tubular guide channel member and wherein a clean channel is defined between the outer tube and said tubular guide channel member arranged interior to said outer tube and further comprises a guide channel defined by and interior to said guide channel member, a sealing means provided on the riser tube, wherein the sealing means separates the clean chamber from the raw chamber; a water removal tube arranged inside the guide channel, wherein water collecting in the water collecting chamber is removed through the water removal tube from the water collecting chamber.