Filter device, in particular for gas filtration

Patent metadata

Field	Value
Publication number	US-11738296-B2
Application number	US-201916708523-A
Country	US
Kind code	B2
Filing date	Dec 10, 2019
Priority date	Dec 10, 2018
Publication date	Aug 29, 2023
Grant date	Aug 29, 2023

Abstract

A filter device has a filter housing and a filter element arranged in the filter housing. The filter element at least partially encloses an inwardly positioned flow chamber. A purified medium can be discharged from the filter device through a flow socket provided with a wall that has an opening. A fastening flange is arranged at the wall of the flow socket adjacent to the opening, wherein a purging gas pipe of a purging device can be detachably fastened by the fastening flange to the flow socket. The opening in the wall of the flow socket receives the purging gas pipe.

First claim

What is claimed is:

1. A filter device comprising:
a filter housing;
a filter element received in the filter housing and comprising one or more filter medium bodies and a flow chamber, wherein the flow chamber is at least partially enclosed by the one or more filter medium bodies;
a flow socket configured to discharge a purified medium from the flow chamber, wherein the flow socket comprises a wall comprising at least two openings; and
a fastening flange arranged at the wall of the flow socket adjacent to the opening, wherein the fastening flange is configured to detachably fasten a purging gas pipe of a purging device to the flow socket, wherein the at least two openings each have correlated therewith one of said fastening flange.

2. The filter device according to claim 1 , further comprising a fastening element arranged at the purging gas pipe and connectable to the fastening flange.

3. The filter device according to claim 1 , further comprising a discharge pipe disposed at the filter housing, wherein the flow socket is an attachment socket connected to the discharge pipe, and wherein the opening in the wall of the flow socket is configured to receive the purging gas pipe.

4. The filter device according to claim 3 , wherein the attachment socket is fixedly connected to the discharge pipe.

5. The filter device according to claim 3 , wherein the attachment socket is welded or glued to the discharge pipe.

6. The filter device according to claim 3 , wherein the attachment socket and the discharge pipe are manufactured as one monolithic piece.

7. The filter device according to claim 1 , wherein the purging device comprises an adjustable valve configured to regulate a purging medium.

8. The filter device according to claim 1 , wherein the filter element is a round filter element.

9. The filter device according to claim 1 , wherein the one or more filter medium bodies include a main filter medium body and a secondary filter medium body, wherein the secondary filter medium body is arranged downstream of the main filter medium body in a flow direction of a medium to be filtered.

10. The filter device according to claim 1 embodied as a gas filter.

11. The filter device according to claim 1 embodied as an air filter.

12. The filter device according to claim 1 , further comprising a fastening element arranged at the purging gas pipe and connectable to the fastening flange.

13. The filter device according to claim 1 , further comprising a discharge pipe disposed at the filter housing, wherein the flow socket is an attachment socket connected to the discharge pipe, and wherein the opening in the wall of the flow socket is configured to receive the purging gas pipe.

14. The filter device according to claim 13 , wherein the attachment socket is fixedly connected to the discharge pipe.

15. The filter device according to claim 13 , wherein the attachment socket is welded or glued to the discharge pipe.

16. A filter device comprising:
a filter housing;
a filter element received in the filter housing and comprising one or more filter medium bodies and a flow chamber, wherein the flow chamber is at least partially enclosed by the one or more filter medium bodies;
a flow socket configured to discharge a purified medium from the flow chamber, wherein the flow socket comprises a wall comprising an opening;
a fastening flange arranged at the wall of the flow socket adjacent to the opening, wherein the fastening flange is configured to detachably fasten a purging gas pipe of a purging device to the flow socket; and
a support ring as a carrier of the purging gas pipe, wherein the support ring is insertable into the fastening flange.

17. The filter device according to claim 16 , further comprising a sealing ring arranged between the support ring and a flange inner wall of the fastening flange.

Assignees

• Mann & Hummel Gmbh

Inventors

• Stark Dennis

Classifications

• B01D46/001 Primary

  Means for connecting filter housings to supports · CPC title

• B01D46/24

  Particle separators, e.g. dust precipitators, using rigid hollow filter bodies · CPC title

• B01D29/0063

  Operations & Transport · mapped topic

• B01D29/114

  arranged for inward flow filtration (B01D29/15, B01D29/33 take precedence) · CPC title

• B01D29/33

  arranged for inward flow filtration · CPC title