Granted Patent B2

US 12,649,120 · App. 18/348,371 · Granted Jun 9, 2026

Inventors: Sascha Schumacher (Wald-Michelbach, DE); Patrick Weber (Weinheim, DE); Thomas Schroth (Bobenheim-Roxheim, DE); Renate Tapper (Bensheim, DE)

Assignee: CARL FREUDENBERG KG

B01D46/0006B01D46/121B01D46/2411B01D46/521B01D46/58

Abstract

Claims (38)

1 . A cartridge filter comprising:

a plurality of filter media sets, wherein two of the plurality of filter media sets are arranged in a V-shaped manner; and

a frame for receiving the filter media sets,

wherein the frame is formed by only four elements which are each configured in one piece: an inflow-side upper plate, an outflow-side base plate and two side plates.

2 . The cartridge filter according to claim 1 , wherein the filter additionally has protective grids which are arranged on a respective filter media set.

3 . A cartridge filter, comprising:

a plurality of filter media sets, wherein two of the plurality of filter media sets are arranged in a V-shaped manner; and

a frame for receiving the filter media sets,

wherein the frame has an upper frame, an outflow-side base plate and two side plates,

wherein the upper frame is formed from an inflow-side single-piece upper plate and part-faces of the side plates,

wherein each side plate has at least two connection elements and the upper plate has in each case at least two complementary counter-elements, and

wherein the connection elements and counter-elements are configured to be able to be pushed one into the other.

4 . The cartridge filter according to claim 3 , wherein

lateral outer faces of the upper frame are formed by the part-faces of the side plates.

5 . The cartridge filter according to claim 3 , wherein connection elements and counter-elements are orientated in the plane of the upper frame.

6 . The cartridge filter according to claim 3 , wherein the connection elements are in the form of journals and the counter-elements are in the form of sleeves which receive the journals.

7 . The cartridge filter according to claim 3 , wherein the connection elements and counter-elements are in the form of a bar which forms a lock and loop-like bar receiving members, respectively.

8 . The cartridge filter according to claim 3 , wherein the filter additionally has protective grids which are arranged on a respective filter media set.

9 . A cartridge filter, comprising:

a plurality of filter media sets, wherein two of the plurality of filter media sets are arranged in a V-shaped manner; and

a frame for receiving the filter media sets,

wherein the frame is formed by an inflow-side upper plate, two side plates and a single-piece, outflow-side base plate,

wherein the single-piece base plate has cross-members,

wherein a cross-member is provided in each case for a respective pair of filter media sets which are arranged in a V-shaped manner and a cross-member is connected to the respective next cross-member by at least one web, and

wherein recesses are provided in the side plates for positive-locking receiving of end portions of the cross-members of the base plate.

10 . The cartridge filter according to claim 9 , wherein the filter additionally has protective grids which are arranged on a respective filter media set.

11 . A cartridge filter, comprising:

a plurality of filter media sets, wherein two of the plurality of filter media sets are arranged in a V-shaped manner; and

a frame for receiving the filter media sets,

wherein the frame is formed by an inflow-side upper plate, two side plates and an outflow-side base plate and the upper plate and the base plate have plate-like cross-members,

wherein the filter media sets are connected to the cross-members in a cohesively bonded manner by casting,

wherein the inner faces, which are directed towards the inner side of the filter, of the cross members each have a topography which is optimised in terms of casting,

wherein the topographies have the following features:

shell-like or cylindrical-disc-like projections, and/or

casting channels which lead into the edge region of the cross-members for casting protective grids which cover the filter media sets, and/or

flow channels for rapid and planar distribution of casting material over the inner face of the cross-members, and/or

positioning elements which are formed from individual ribs as auxiliary positioning members for the filter media sets.

12 . The cartridge filter according to claim 11 , wherein the filter additionally has protective grids which are arranged on a respective filter media set.

Assignments (1)

Priority Claims (1)

Continuity (1)

References Cited (18)