Patent ID: 8540873

Claim:
A filter device which can be flowed-through, comprising: a first annular and a second annular end disk for a liquid ring filter, a cylindrical filter housing, in which the ring filter is supported within the filter housing, a central mounting opening provided at an axial end of the filter housing and a cylindrical rod which serves as a liquid supply device, wherein the filter housing is reversibly slid by the mounting opening onto the rod, and wherein the liquid filter device is operational when the filter housing is slid onto the rod, and the rod penetrates the ring filter of the filter at least partially, an end of the filter housing facing away from the mounting opening, wherein the first end disk of the ring filter is adjacent to the end of the filter housing-facing away from the mounting opening, a radially outer crude chamber and a radially inner clean chamber, wherein the ring filter forms within the filter housing the crude chamber and the clean chamber, a receiving chamber, located between the first end disk and the end of the filter housing facing away from the mounting opening, the receiving chamber is provided which is separated from the crude chamber by the first end disk; a discharge port for cleaned liquid is provided in an area adjacent to the mounting opening of the filter housing to communicate with the clean chamber within the filter housing, and an operational assembly condition of the filter including the ring filter, the filter housing, and the rod, wherein the first end disk has at least one connection channel; which connects an interior of the rod conveying liquid to be cleaned and the crude chamber.