Patent ID: 9011685
Filing Date: 2015-04-21
Classification: B01D,F02M

Abstract:
1. A fuel filter of an internal combustion engine, with a filter housing having an operationally lower housing base and an operationally upper, removable housing cover, with a raw fuel inlet and a pure fuel outlet and a tank return each being provided in the filter housing, with a replaceable ring filter insert being arranged in the filter housing through which the fuel can flow radially from the outside to the inside, said filter having a center support body for said ring filter insert, said ring filter insert subdividing an interior of the filter housing into a raw area and a pure area, a first flow channel extending through the center support body and being connected with the pure area at one end and with the pure fuel outlet at an opposite end, a second flow channel extending through the center support body as a vent pipe defining a vent channel being connected, at one end, with the raw area via one of a vent throttle and a vent valve and, at an opposite end, with the tank return in the filter housing, with the raw fuel inlet being arranged in the housing base of the filter housing, a third flow channel extending through said center support body and leading from the raw fuel inlet to an operationally upper part of the raw area of the interior of the filter housing.