# US 11,992,795 B2 · Filter structure body and filter module for separating impurities from a raw fluid stream > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,992,795 B2 - Document ID: US11992795B2 - Status: Granted - Kind: B2 - Application number: 17/266,576 - Filed: 2019-08-09 - Published: 2021-09-23 - Granted: 2024-05-28 - Earliest claimed: 2018-08-14 - Assignees: Dürr Systems AG - Applicants: DüRr Systems AG - Inventors: Oliver Seyboth - Web page: https://patentgrep.com/patent/US11992795B2 ## CPC - B01D 46/0005: {Mounting of filtering elements within casings, housings or frames (B01D46/2422 takes precedence)} - B01D 46/10: Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces - B01D 46/523: {with means for maintaining spacing between the pleats or folds} - B01D 2265/06: Details of supporting structures for filtering material, e.g. cores - B01D: SEPARATION (separating solids from solids by wet methods B03B, B03D; by pneumatic jigs or tables B03B; by other dry methods B07; magnetic or electrostatic separation of solid materials from solid materials or fluids, separation by high-voltage electric fields B03C; centrifuges, vortex apparatus B04; presses per se for squeezing-out liquid from liquid-containing material B30B9/02; treatment of water C02F, e.g. softening by ion-exchange C02F1/42; {arrangements of air intake cleaners in gas turbine plants F02C7/05} ; arrangements or mounting of filters in air-conditioning, air-humidification or ventilation F24F13/28) ## Abstract A filter module for separating impurities from a raw gas stream containing impurities includes at least one three-dimensional filter structure body, through which the raw gas stream can be conducted, and an outer frame for receiving the filter structure body between a raw-side opening and a clean-side opening. The three-dimensional filter structure body includes at least one support structure and a filter layer arranged thereon. The support structure has at least one comb-like segment with a base, from which prongs, which are spaced apart from one another, project jointly in a direction in the longitudinal direction of the base. A laying direction of the filter layer extends in the longitudinal direction of the base. A filter structure body, a kit, and a method for producing a filter structure body are also provided. ## Claims ### Claim 1 A filter module for separating impurities from a raw gas stream containing impurities, comprising at least one three-dimensional filter structure body through which the raw gas stream can be conducted, and an outer frame for receiving the filter structure body between the raw gas-side opening and a clean gas-side opening, wherein the at least one three-dimensional filter structure body comprises a support structure and a filter sheet disposed thereon, which comprises an inflow surface and an outflow surface, wherein the support structure comprises a plurality of comb-like shaped segments, each with a base, from which prongs project jointly in a direction at a spacing from each other in the longitudinal direction of the base, wherein the plurality of comb-like shaped segments are arranged congruently parallel to one another and are connected by a plurality of discrete connecting elements connecting the comb-like shaped elements segments and attached to the comb-like shaped elements segments at peaks of the prongs of the comb-like shaped elements segments, wherein a laying direction of the filter sheet extends in the longitudinal direction of the base, and wherein inflow regions of the inflow surface are disposed on one side of the filter sheet and outflow regions of the outflow surface are disposed on the opposite side of the filter sheet, each of which extending along the prongs between the base and ends of the prongs remote from the base. ### Claim 2 (depends on 1) The filter module according to claim 1, wherein the filter sheet is fastened in the support structure using at least one fixing structure comprising at least one fixing element. ### Claim 3 (depends on 1) The filter module according to claim 1, wherein the base is configured in one piece. ### Claim 4 (depends on 1) The filter module according to claim 1, wherein the prongs taper in a direction away from the base. ### Claim 5 (depends on 1) The filter module according to claim 1, wherein the filter sheet comprises one or several filtering mats. ### Claim 6 (depends on 1) The filter module according to claim 1, wherein the filter structure body is fastened in the outer frame without connecting means, particularly wherein the filter structure body is form-fittingly fastened in the outer frame. ### Claim 7 (depends on 1) The filter module according to claim 1, wherein the filter sheet is laid out in a corrugated manner along the base of the at least one segment of the support structure, particularly wherein a protrusion beyond the support structure is provided at the start and end of the filter sheet. ### Claim 8 (depends on 1) The filter module according to claim 1, wherein a coarse separator followed by a fine filtering stage is disposed in the frame, particularly wherein the coarse separator for inertial separation of components contained in a fluid flowing through it, particularly paint particles and/or paint agglomerates, particularly wherein the coarse separator comprises at least one acceleration section for the fluid on its inlet side in which the fluid is accelerated in a flow direction and a first stripping surface for components contained in the fluid is disposed downstream of the acceleration section. ### Claim 9 (depends on 1) The filter module according to claim 1, wherein an extension of the acceleration section between bottom part and cover part of the coarse separator is oriented transversely, particularly perpendicular, to corrugations of the filter sheet of the fine filtering stage. ### Claim 10 (depends on 1) The filter module according to claim 1, wherein discrete connecting elements are attached to the comb-like shaped segments at troughs between the prongs of the comb-like shaped segments. ### Claim 11 A filter module for separating impurities from a raw gas stream containing impurities, comprising at least one three-dimensional filter structure body through which the raw gas stream can be conducted, and an outer frame for receiving the filter structure body between the raw gas-side opening and a clean gas-side opening, wherein the at least one three-dimensional filter structure body comprises a support structure and a filter sheet disposed thereon, which comprises an inflow surface and an outflow surface, wherein the support structure comprises a plurality of comb-like shaped segments, each with a base, from which prongs project jointly in a direction at a spacing from each other in the longitudinal direction of the base, wherein the plurality of comb-like shaped segments are arranged congruently parallel to one another and are connected by a plurality of discrete connecting elements connecting the comb-like shaped elements segments and attached to the comb-like shaped segments at troughs between the prongs of the comb-like shaped segments, wherein a laying direction of the filter sheet extends in the longitudinal direction of the base, and wherein inflow regions of the inflow surface are disposed on one side of the filter sheet and outflow regions of the outflow surface are disposed on the opposite side of the filter sheet, each of which extending along the prongs between the base and ends of the prongs remote from the base.