High flow V-bank filter

• US 20090193773A1
• Filed: 01/31/2008
• Published: 08/06/2009
• Est. Priority Date: 01/31/2008
• Status: Active Grant

• Current Assignee: Camfil AB
• Original Assignee: Camfil AB
• Inventors: Sundvik, Anders, Runefelt, Daniel
• Granted Patent: US 8,425,644 B2
• Time in Patent Office: Days
• US Class Current: 55/478
• CPC Class Codes: B01D 46/121 V-type arrangements
• CPC Class Codes: B01D 46/4227 Manipulating filters or filter elements, e.g. handles or extracting tools
• CPC Class Codes: B01D 46/521 using folded, pleated material
• CPC Class Codes: B01D 46/58 connected in parallel

Abstract

A V-bank air filter having a high air flow rate with low pressure drop is provided. In one embodiment, a V-bank filter includes a housing having a first pair and a second pair of pleated filter elements arranged in a vee configuration and comprising a unitary disposable filter. A centerline defined by the first pair of pleated filter elements defines an acute angle with a centerline defined by the second pair of pleated filter elements.

Claims

1. A V-bank filter comprising:

a first pair of pleated filter elements arranged in a vee configuration;

a second pair of pleated filter elements arranged in a vee configuration; and

a housing having the first and second pairs of pleated filter elements disposed therein, the housing and filter element pairs comprising a unitary disposable filter, wherein a centerline defined by the first pair of pleated filter elements defines an acute angle with a centerline defined by the second pair of pleated filter elements.

2. The V-bank filter of claim 1, wherein the housing further comprises:

a first side panel;

a second side panel;

a first spacer coupling the first and second panels, the first spacer having the first pair of pleated filter elements sealed thereto; and

a second spacer coupling the first and second panels, the second spacer having the second pair of pleated filter elements sealed thereto.

3. The V-bank filter of claim 2, wherein the first spacer further comprises:

an elongated tubular member;

a flange extending from the tubular member to a lip, the lip, flange and tubular member forming a trough for receiving an edge of the pleated filter element; and

a notch formed in the elongated tubular member.

4. The V-bank filter of claim 3, wherein the first and second side panels further comprise:

a feature that mates with opposite ends of the elongated tubular member.

5. The V-bank filter of claim 1, wherein the housing further comprises:

a first side panel having an interior side;

a second side panel having an interior side facing the interior side of the first side panel, the pleated filter elements coupled to the side panels;

a first handle accessible from the interior side of the first side panel; and

a second handle accessible from the interior side of the second side panels.

6. The V-bank filter of claim 5, wherein the first handle does not provide a leak path through the first side panel.

7. The V-bank filter of claim 5, wherein the first handle is an elongated recess formed in but not through the first side panel.

8. The V-bank filter of claim 1, wherein the housing further comprises:

a plurality of blind clip retaining features.

9. The V-bank filter of claim 1, wherein the blind clip retaining features comprises:

a blind slot formed in the housing, the slot having a front wall adjacent an edge of the housing, the front wall perpendicular to a centerline of the filter; and

a notch formed in the housing between the slot and the edge of the housing.

10. A V-bank filter comprising:

a first side panel;

a second side panel, the first and second side panels having parallel first edges oriented perpendicular to a flow direction through the filter; and

a plurality of filter elements arranged in at least two pairs of vees extending between the first and second housings, the flanges and the filter elements comprising a unitary disposable filter, wherein at least three filter elements have a unique orientation relative to the flow direction.

11. The V-bank filter of claim 10 further comprising:

an elongated tubular member coupling the first and second side panels;

a flange extending from the tubular member to an upturned lip and defining a filter element receiving trough, the trough substantially equal in width to a pleat height of the filter element; and

an adhesive flow feature formed in the elongated tubular member configured to direct adhesive into the trough.

12. The V-bank filter of claim 10, wherein the first side panel further comprises:

an interior side facing the filter elements; and

a first handle accessible from the interior side of the first side panel.

13. The V-bank filter of claim 12, wherein the handle does not provide a leak path through the first side panel.

14. The V-bank filter of claim 12, wherein the first handle is an elongated recess formed in but not through the first side panel.

15. The V-bank filter of claim 10, wherein the housing further comprises:

a plurality of blind clip retaining features.

16. The V-bank filter of claim 10, wherein the blind clip retaining features comprises:

a blind slot formed in the first side panel, the slot having a front wall adjacent and perpendicular to an edge of the first side panel; and

a notch formed in the housing between the slot and the edge of the housing.

17. The V-bank filter of claim 10 further comprising:

a prefilter secured to first edges of the side panels.

18. The V-bank filter of claim 17, wherein the prefilter is spaced apart from the approximate ends of the filter elements.

19. A V-bank filter comprising:

a first side panel;

a second side panel coupled to the first side panel in a spaced apart relation, the first and second side panels having parallel edges oriented perpendicular to a flow direction through the filter; and

a plurality of filter elements coupled to the housing in at least two pairs of vees, the flanges and the filter elements comprising a unitary disposable filter, each of the filter elements has a first end having an orientation perpendicular to the flow direction and adjacent the edges of the flanges, wherein the first end of at least one filter element is spaced farther from the first edge of an adjacent filter element.

20. The V-bank filter of claim 19, wherein the first ends of the filter elements are arranged in a radial orientation.

21. The V-bank filter of claim 20, wherein the first ends of the filter elements are offset from the edges of the of the side panels in a substantially arc-shaped orientation.