Filter element with filter pockets

Patent metadata

Field	Value
Publication number	US-9623355-B2
Application number	US-201314405809-A
Country	US
Kind code	B2
Filing date	May 22, 2013
Priority date	Jun 11, 2012
Publication date	Apr 18, 2017
Grant date	Apr 18, 2017

Abstract

The present disclosure relates to a filter element that includes a frame and bag-type filter pockets which are connected to the frame. The filter pockets have an inflow side and an outflow side, wherein at least one opening is present on the inflow side for the inlet of a fluid to be filtered by the filter pockets. The interior of each of the filter pockets tapers in the direction of their respective outflow side. Fluid-guiding elements are provided on the inflow and/or the outflow side of the filter pockets. An efficient filter element in which the fluid to be filtered is effectively cleaned is therefore provided.

First claim

What is claimed is:

1. A filter element having an outflow side and an inflow side, the filter element comprising:
a frame; and
bag-like filter pockets connected to the frame, the bag-like filter pockets having an inflow side and an outflow side oriented towards the inflow and outflow sides of the filter element, respectively; wherein:
each of the bag-like filter pockets comprises at least one wall that defines an interior space of a respective one of the bag-like filter pockets, such that the interior space tapers in a direction of an outflow side of the bag-like filter pockets;
the at least one wall of the bag-like filter pockets comprises an inflow surface oriented towards the inflow side of the bag-like filter pockets and an outflow surface oriented towards the outflow side of the bag-like filter pockets;
each of the bag-like filter pockets comprise at least one opening so that a fluid which is to be filtered can enter into the interior space thereof from the inflow side of the filter element; and
the filter element further comprises fluid-guiding elements arranged on the outflow side of said bag-like filter pockets.

2. The filter element as claimed in claim 1 , wherein the fluid-guiding elements are at least partially curved or arcuate.

3. The filter element as claimed in claim 1 , wherein the fluid-guiding elements are at least partially circular in cross section.

4. The filter element as claimed in claim 1 , wherein the fluid-guiding elements are air baffle plates.

5. The filter element as claimed in claim 1 , wherein the fluid-guiding elements are separate components that are each releaseably coupled to the outflow surface of the at least one wall of a respective one of the bag-like filter element.

6. The filter element as claimed in claim 1 , wherein:
each of the bag-like filter pockets taper to a pointed end in a direction towards the outflow side of the filter element;
each of the fluid-guiding elements are arranged on a respective one of the pointed ends of the bag-like filter pockets.

7. The filter element as claimed in claim 1 , wherein:
said fluid guiding elements comprise first fluid-guiding elements and second fluid-guiding elements;
each of said first fluid-guiding elements is arranged on the outflow surface of the at least one wall of a respective one of said bag-like filter pockets; and
each of said second fluid-guiding elements is arranged between at least two of said bag-like filter pockets on an outflow side of said filter element.

8. The filter element as claimed in claim 1 , wherein the fluid-guiding elements and the frame are formed in one piece, such that the frame and the fluid guiding elements are integral with one another.

9. The filter element as claimed in claim 1 , wherein:
the frame comprises an inflow-side upper edge;
the fluid guiding elements comprise an outflow end; and
the fluid-guiding elements maintain a spacing of not more than 5 d from the inflow-side upper edge, where d represents the distance which runs from the inflow-side upper edge to the outflow end of each of the bag-like filter pockets.

10. The filter element as claimed in claim 1 , wherein each of the bag-like filter pockets have folded walls, wherein the folded walls have pleating.

11. The filter element as claimed in claim 10 , wherein the at least one wall of each of said bag-like filter pockets is formed by a flat filter element.

12. A module comprising fluid-guiding elements for producing a filter element as claimed in claim 1 .

13. The filter element of claim 8 , wherein the frame and the bag-like fluid filter pockets are formed from the same material.

Assignees

• Freudenberg Carl Kg

Inventors

• Caesar Thomas
• Stiborsky Mark
• Manstein Heiko
• Grunz Steffen

Classifications

• B01D46/002

  Operations & Transport · mapped topic

• B01D46/0049

  containing fixed gas displacement elements or cores · CPC title

• B01D46/023 Primary

  Pockets filters, i.e. multiple bag filters mounted on a common frame · CPC title

• B01D46/0005

  Mounting of filtering elements within casings, housings or frames (B01D46/2422 takes precedence) · CPC title

• B01D46/0045

  by using vanes · CPC title