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KR-20260066051-A - Circular filter element and filter system

KR20260066051AKR 20260066051 AKR20260066051 AKR 20260066051AKR-20260066051-A

Abstract

The present invention relates to a circular filter element (10) for a filter system (100) for filtering a fluid, particularly for filtering air, in particular for an air filter system of a fuel cell system, comprising: a filter medium body (12) that encloses at least a longitudinal axis (80) and defines an internal space (14) and includes a particle filter medium; two end bodies (20, 22) that define the filter medium body (12) at mutually facing end surfaces (16, 18), wherein at least one of the end bodies (20, 22) is an open end plate (24) and includes a through opening (26) that is fluidly communicating with the internal space (14); and further comprising a sorbing element (40) disposed within the through opening (26) of the open end plate (24) and fixedly connected directly or indirectly to the filter medium body (12) or the end plate (24). In the operating state, the fluid may flow through the sorption element (40) in series with respect to the filter medium body (12) in the longitudinal direction (80). The sorption element (40) is sealed with respect to the through opening (26). Additionally, the present invention relates to a filter system (100).

Inventors

  • 네프, 파스칼
  • 리거, 마리오
  • 한젤만, 마르쿠스
  • 쿠퍼, 프리드리히
  • 바이스, 디이터
  • 슈미트, 다니엘
  • 슈타크, 데니스
  • 헤트캄프, 필립
  • 그라트, 요하네스
  • 페레이라 마데이라, 페드로 미구엘
  • 할바우어, 에파
  • 페크니, 페터
  • 베버, 안드레아스
  • 비트머스, 크리스토프
  • 게르라흐, 슈테펜

Assignees

  • 만 운트 훔멜 게엠베하

Dates

Publication Date
20260512
Application Date
20240813
Priority Date
20230907

Claims (15)

  1. As a circular filter element (10) for a filter system (100) for filtering fluid, particularly for filtering air, particularly for an air filter system of a fuel cell system, A filter medium body (12) that surrounds the longitudinal axis (80), defines the internal space (14), and includes a particle filter medium; It includes two end bodies (20, 22) defining the filter medium body (12) at mutually facing end surfaces (16, 18), wherein at least one end body (20, 22) is an open end plate (24) and includes a through opening (26) fluidly communicating with the internal space (14); It includes a sorption element (40) disposed within a through opening (26) of the open end plate (24) and fixedly coupled directly or indirectly to the filter medium body (12) or the end plate (24); In the operating state, the above-mentioned adsorption element (40) is configured so that the fluid can flow through the filter medium body (12) in series along the longitudinal axis (80) direction; A circular filter element (10) characterized in that the above-mentioned adsorption element (40) is formed to be sealed against the above-mentioned through opening (26).
  2. In paragraph 1, A circular filter element (10) characterized in that, in the operating state, the filter medium body (12) is configured to allow fluid to pass through in a radial direction.
  3. In paragraph 1 or 2, The above-mentioned sorption element (40) has an outer surface (44) that extends substantially in the axial direction and is embedded at least partially within an open end plate (24), and is particularly connected to the open end plate (24) by material bonding, characterized by a circular filter element (10).
  4. In any one of paragraphs 1 through 3, A circular filter element (10) characterized in that the above-mentioned adsorption element (40) protrudes at least partially into the internal space (14) of the filter media body (12) in the longitudinal direction (80).
  5. In any one of paragraphs 1 through 4, A circular filter element (10) characterized in that the above-mentioned adsorption element (40) protrudes at least partially beyond the end surface (16) of the open end plate (24) of the filter media body (12) in the longitudinal direction (80).
  6. In any one of paragraphs 1 through 5, A circular filter element (10) characterized in that the above-mentioned sorption element (40) is defined by end surfaces (46, 48) arranged opposite each other in the longitudinal direction (80), and one end surface (46) of the above-mentioned sorption element (40) is arranged to be surface-aligned with the open end plate (24).
  7. In any one of paragraphs 1 through 6, The above-described sorption element (40) comprises a rectangular shape contour (50) in which the outer edges (45) are substantially aligned in the longitudinal direction (80), and the diagonal (52) of one of the end faces (46, 48) of the rectangular shape contour (50) is less than or equal to the diameter (34) of the through opening (26) of the end plate (24), characterized in that it is a circular filter element (10).
  8. In any one of paragraphs 1 through 6, A circular filter element (10) characterized in that the above-mentioned sorption element (40) includes a cylindrical contour (54), the cylindrical contour (54) is oriented so that the cylindrical axis is parallel to the longitudinal axis (80), particularly so as to be centered aligned with the longitudinal axis (80), and the above-mentioned sorption element (40) is positioned radially inside the through opening (26).
  9. In any one of paragraphs 1 through 8, A circular filter element (10) characterized in that the above-mentioned sorption element (40) comprises a folded sorption medium (42), and the folded edges (56) of the sorption medium (42) are arranged at an angle with respect to the longitudinal axis (80), particularly perpendicular to the longitudinal axis (80).
  10. In any one of paragraphs 1 through 8, The above-mentioned sorption element (40) is a circular filter element (10) characterized by including a sorption medium (42) wound around a longitudinal axis (80).
  11. In Article 9 or Article 10, The above-mentioned sorption element (40) includes a side band (58) on at least one of the outer surfaces (44) that extend substantially in the axial direction, and is closed in particular by the side band (58), and in particular the side band (58) is embedded within the open end plate (24) and in particular connected to the open end plate (24) by material bonding, characterized in that it is a circular filter element (10).
  12. In any one of paragraphs 1 through 8, The above-mentioned sorption element (40) is a circular filter element (10) characterized by including an sorption medium (42) implemented in a bulk material (60).
  13. In any one of paragraphs 1 through 12, A circular filter element (10) characterized in that a nonwoven fabric (62) is disposed on the end surfaces (46, 48) of the above-mentioned sorption element (40), and/or at least one of the end surfaces (46, 48), particularly at least one end surface (46) disposed on the downstream side, includes reinforcing ribs (64).
  14. In any one of paragraphs 1 through 8, A circular filter element (10) characterized in that the above-mentioned adsorption element (40) includes a honeycomb structure (66) having channels (68) open in the longitudinal direction (80), and the honeycomb structure (66) includes an adsorption medium (42).
  15. A filter system (100) for filtering fluid, particularly for filtering air, particularly for a fuel cell system, comprising a filter housing (110) having a fluid inlet (102) and a fluid outlet (104), and at least one circular filter element (10) according to any one of claims 1 to 14 disposed between the fluid inlet (102) and the fluid outlet (104).

Description

Circular filter element and filter system This patent application claims priority to German patent application No. 102023124081.1 filed with the German Patent and Trademark Office on September 7, 2023, the contents of which are incorporated herein by reference. The present invention relates to a round filter element and a filter system having the round filter element for a filter system for filtering a fluid, particularly for filtering air, particularly for an air filter system of a fuel cell system. Fuel cell systems often require particle filters and sorption filters to filter not only particles but also harmful gases from the intake air. The filter media bodies of the different filtration stages typically have different dimensions. US 2018/149119 A1 discloses a filter device comprising a circular filter element having a filter medium body in which an adsorption element is disposed within an open end plate providing an outlet for the filtered fluid. In this case, the adsorption element is configured so that the fluid filtered by the filter medium body flows over it, so that harmful gases still contained in the filtered fluid can be adsorbed. DE 102016004316 A1 discloses a flat auxiliary element that is inserted into an open end plate located on the clean side of a circular main filter element and through which fluid flows axially during operation. The auxiliary element is separated from the main filter element and contains only a particle filter medium. The auxiliary filter element has the practical purpose of preventing the clean side of the filter element device from being contaminated by the raw fluid (unfiltered fluid) to be filtered when the main filter element is replaced. Additional advantages are derived from the description of the following drawings. The drawings illustrate embodiments of the present invention. The drawings, the description of the invention, and the claims contain a number of features in combination. Those skilled in the art will appropriately consider these features individually and combine them in appropriate additional combinations. The drawings illustrate the following by way of example: FIG. 1 illustrates an conformal exploded view of a filter system for filtering a fluid, particularly for filtering air, particularly for a fuel cell system, according to one embodiment of the present invention; FIG. 2 illustrates a cross-sectional view of a filter system according to FIG. 1; FIG. 3 illustrates an isometric view of a circular filter element according to one embodiment of the present invention; FIG. 4 illustrates a longitudinal section of a circular filter element according to FIG. 3; FIG. 5 illustrates the isometric view of the adsorption element of the circular filter element according to FIG. 3; FIG. 6 illustrates a plan view of a circular filter element according to FIG. 3; FIG. 7 illustrates a detailed cross-sectional view of a circular filter element according to FIG. 4; FIG. 8 illustrates a longitudinal cross-sectional view of a circular filter element according to another embodiment of the present invention; FIG. 9 illustrates the isometric view of the adsorption element of the circular filter element according to FIG. 8; FIG. 10 illustrates a plan view of a circular filter element according to FIG. 8; FIG. 11 illustrates a detailed cross-sectional view of a circular filter element according to FIG. 8; FIG. 12 illustrates a longitudinal cross-sectional view of a circular filter element according to another embodiment of the present invention; FIG. 13 illustrates the isometric view of the adsorption element of the circular filter element according to FIG. 12; FIG. 14 illustrates a plan view of a circular filter element according to FIG. 12; FIG. 15 illustrates a longitudinal cross-sectional view of a circular filter element according to another embodiment of the present invention; FIG. 16 illustrates the isometric view of the adsorption element of the circular filter element according to FIG. 15; FIG. 17 illustrates a plan view of a circular filter element according to FIG. 15; FIG. 18 illustrates a longitudinal cross-sectional view of a circular filter element according to another embodiment of the present invention; FIG. 19 illustrates the isometric view of the adsorption element of the circular filter element according to FIG. 18; FIG. 20 illustrates a plan view of a circular filter element according to FIG. 18; FIG. 21 illustrates a detailed plan view according to FIG. 20; FIG. 22 illustrates a longitudinal section of a circular filter element according to another embodiment of the present invention; FIG. 23 illustrates the isometric view of the adsorption element of the circular filter element according to FIG. 22; FIG. 24 illustrates a plan view of a circular filter element according to FIG. 22; FIG. 25 illustrates a detailed longitudinal section according to FIG. 22; FIG. 26 illustrates a longitudinal section of a circular filter element according to another embod