Patent ID: 8231779
Filing Date: 2012-07-31
Classification: B01D,F02M

Abstract:
1. A fluid filtering device for the fuel of an internal combustion engine, comprising: a closed cup-shaped filter housing including: a fluid inlet arranged on said housing; a cover firmly secured to and closing an open end of said filter housing, said cover having a fluid inflow opening in communication with said fluid inlet; a water collecting chamber arranged within said filter housing; a water outlet connection directed outwardly from said housing through a recess in said housing; a drainage channel arranged within said filter housing and in fluid flow communication with said water collection chamber, said drainage channel arranged to deliver collected water to the exterior of the filter housing through said water outlet connection; a filter element enclosed within said filter housing; and a heating device enclosed within said filter housing between said cover and an adjacent axial front side of said filter element, said heating device disposed in a flow path of the fluid, said heating device including: wherein an exterior side of said first heating plate is spaced apart from said interior side of said cover on said heating support, said spacing between said cover with said heating support and said exterior side of said first plate forming a first annular fluid heating chamber heating fluid flowing therebetween, wherein said heating plates contact fluid within in each of said plurality of serially connected axially spaced fluid heating chambers, conducting heat from said at least one heating element to said fluid, and wherein said drainage channel is connected with the heating support.