High flow V-bank filter

• US 9,878,274 B2
• Filed: 02/02/2015
• Issued: 01/30/2018
• Est. Priority Date: 01/31/2008
• Status: Active Grant

• Current Assignee: Camfil AB
• Original Assignee: Camfil AB
• Inventors: Sundvik, Anders, Runefelt, Daniel
• Primary Examiner(s): McKenzie, T. Bennett
• Application Number:
  US14/611,839
• Publication Number:
  US 20150143783A1
• Time in Patent Office: 1,093 Days
• Field of Search: 55356-357, 55478, 55482-490, 55497, 55502, 55521, 55DIG 31
• 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 first side panel and a second side panel having parallel first edges oriented perpendicular to a flow direction through the filter. A plurality of filter elements are arranged in at least two pairs of vees extending between the first and second housings. The side panels and the filter elements comprise a unitary disposable filter, wherein at least three filter elements have a unique orientation relative to the flow direction.

Claims

1. 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 pairs of vees extending between the first and second side panels, the first side panel, second side panel, and the filter elements comprising a unitary disposable filter, wherein the plurality of filter elements comprises;

a first filter element in a first vee pair,

a second filter element in the first vee pair, and

a third filter element in a second vee pair, wherein each of the first filter element, second filter element and third filter element has a unique orientation direction relative to the flow direction, and

wherein the V-bank filter comprises a filter inlet located at an upstream end of each of the first and second side panels and a filter outlet located at a downstream end of each of the first and second side panels, wherein the flow direction through the filter inlet is substantially parallel to a flow direction through the filter outlet, and wherein the unique orientation of the first filter element, the second filter element and the third filter element comprises;

a first orientation direction extending in the direction from the inlet to the outlet through a centerline of the first filter element;

a second orientation direction extending in the direction from the inlet to the outlet through a centerline of the second filter element; and

a third orientation direction extending in the direction from the inlet to the outlet through a centerline of the third filter element, wherein none of the first orientation direction, second orientation direction or third orientation direction are parallel.

2. The V-bank filter of claim 1 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

a sealant guiding feature formed in the elongated tubular member configured to direct adhesive into the trough.

3. The V-bank filter of claim 1, 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.

4. The V-bank filter of claim 3, wherein the first handle does not provide a leak path through the first side panel.

5. The V-bank filter of claim 3, wherein the first handle is an elongated recess formed in but not through the first side panel.

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

a plurality of blind clip retaining features.

7. The V-bank filter of claim 1, wherein each blind clip retaining feature 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.

8. The V-bank filter of claim 1, further comprising:

a pre-filter secured to the first edges of the first and second side panels.

9. The V-bank filter of claim 8, wherein the prefilter is spaced apart from the filter elements upstream and adjacent to the first side panel.

10. The V-bank filter of claim 1, wherein the first, second and third filter elements each comprise a first end wherein each first end is offset from the first edges of the first and second side panels in a substantially arc-shaped orientation.

11. 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 a housing in at least two pairs of vees, the first side panel, second side panel, 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 first and second side panels, wherein the first end of at least one filter element is spaced farther from the edges of the side panels than the first end of an adjacent filter element, and the housing having a filter inlet and a filter outlet wherein the flow direction through the filter inlet is substantially parallel to a flow direction through the filter outlet, wherein the first ends of the filter elements are offset from the edges of the side panels in a substantially arc-shaped orientation.

12. The V-bank filter of claim 11, wherein the first ends of the filter elements are arranged in a radial orientation.