Abstract: A filter device, in particular for lubricating oil filtration, includes at least two filter inserts (27), in each of which a filter material (43) is accommodated. The filter inserts are provided with fluid passage points (37, 39) and can be stacked on top of one another with the formation of a stack. A back-flushing device (55,57) is movably arranged along the inner side of the filter inserts (27). The individual filter inserts (27) are designed as identical parts at least with respect to their housings.

Abstract: A filter device for cleaning particulate contaminants from a fluid flow, includes a plurality of filter elements (34, 60) accommodated in filter chambers (12, 14, 32) as components of a joint filter housing (10) and grouped around a backwash device (20) having a piston accumulator (56) for receiving a backwash fluid. In the storage housing (64) of the piston accumulator, a piston (57) is guided in a longitudinally movable manner, is controlled by a pressure medium, and passes on the backwash fluid stored in the storage housing (64) on to at least one filter element (60) to be backwashed for cleaning purposes via a backwash device (20). The backwash device also discharges the backwash fluid from the filter device. A specific filter element as a bypass filter element (34) is selected from the plurality of filter elements (34, 60), and exclusively removes particles after a changeover device (18) has been actuated, while the other filter elements (60) are excluded from this removal process.

Abstract: A system for filtering fluids includes a primary filter (2) having at least one filter element that can be penetrated in one direction during the filtration process and can be penetrated in the opposite direction for a backflushing process. An aftertreatment device (36) is mounted downstream of the primary filter (2) for the backflushed quantities discharged by the primary filter to be processed and includes at least one filter chamber (11) that holds the backflushed quantities and that has a fluid inlet, a fluid outlet and at least one aftertreatment filter element (19). A control device (9) delivers one portion of the backflushed quantity at a time to the associated aftertreatment filter element (19).

Abstract: The invention relates to a filter device, in particular for filtering lubrication, consisting of at least one filter insert (19), in which a respective filter material (27) is received and which is provided with fluid passage points (70) that are delimited by wall parts (63) of the filter insert (19) and with a backflush device (37, 49) that has at least one flush nozzle (49), said flush nozzle being movable along the interior of the respective pairable filter insert (19) by means of a hollow drive shaft (37).

Abstract: A filter device for cleaning particulate contaminants from a fluid flow, comprising a plurality of filter elements (34, 60) which are accommodated in filter chambers (12, 14, 32) as components of a joint filter housing (10) and are grouped around a backwash device (20) having a piston accumulator (56) for receiving a backwash fluid, in the storage housing (64) of which piston accumulator a piston (57) is guided in a longitudinally movable manner, which, controlled by a pressure medium, passes on the backwash fluid stored in the storage housing (64) on to at least one filter element (60) to be backwashed for cleaning purposes via a backwash device (20), which also discharges the backwash fluid from the filter device, is characterized in that a specific filter element as a bypass filter element (34), which is selected from the plurality of filter elements (34, 60), exclusively removes particles after a changeover device (18) has been actuated, and the other filter elements (60) are excluded from this removal pr

Abstract: The invention relates to a filter device, in particular for filter¬ing lubrication, consisting of at least one filter insert (19), in which a respec¬tive filter material (27) is received and which is provided with fluid passage points (70) that are delimited by wall parts (63) of the filter insert (19) and with a backflush device (37, 49) that has at least one flush nozzle (49), said flush nozzle being movable along the interior of the respective pairable filter insert (19) by means of a hollow drive shaft (37).

Abstract: The invention relates to a filter device, in particular for lubri¬cating oil filtration, comprising at least two filter inserts (27), in each of which a filter material (43) is accommodated, which are provided with fluid passage points (37, 39) and can be stacked on top of one another with the formation of a stack, and further comprising a back-flushing device (55,57) which is movably arranged along the inner side of the filter inserts (27). The invention is characterized in that the individual filter inserts (27) are designed as identical parts at least with respect to their housings.

Abstract: Disclosed is a system for filtering fluids comprising a primary filter (2) having at least one filter element that can be penetrated in one direction during the filtration process and can he penetrated in the opposite direction for a backflushing process, further comprising an aftertreatment device (36) which is mounted downstream of the priniaty filter (2) in order for the backflushed quantities discharged by the primary filter to be processed and which includes at least one filter chamber (11) that holds the backflushed quantities and has a fluid inlet, a fluid outlet and at least one aftertreatment filter element (19), and comprising a control device (9) for delivering one portion of the backflushed quantity at a time to the associated aftertreatment filter element (19).