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US 12,134,060 B2Granted
Filter systems with dirty air chamber spacer elements and methods of using the same
AssigneeDonaldson Company, Inc.
InventorThomas D. Raether
Life of this patent
Estimating the term…
Abstract
Filter systems and methods described herein include one or more spacer elements positioned in the dirty air chamber along with the filter elements attached to the spacer elements. The dirty air inlet delivers a dirty air stream into the dirty air chamber along a dirty air flow axis.
Claims20
A filter system comprising:
- a housing comprising a tubesheet separating the housing into a dirty air chamber, a clean air chamber, an end wall panel located across the dirty air chamber from the tubesheet, and a hopper located below the dirty air chamber;
- a plurality of spacer elements attached to the tubesheet, wherein each spacer element of the plurality of spacer elements comprises a clean air inlet and a clean air outlet, and wherein the clean air outlet of each spacer element of the plurality of spacer elements is attached to the tubesheet;
- a plurality of apertures in the tubesheet, wherein the clean air outlet of each spacer element of the plurality of spacer elements is positioned over an aperture of the plurality of apertures in the tubesheet such that air passing from the dirty air chamber into the clean air chamber through each spacer element of the plurality of spacer elements passes through the aperture;
- a plurality of filter elements, wherein each filter element of the plurality of filter elements is attached to the clean air inlet of one spacer element of the plurality of spacer elements, wherein each spacer element of the plurality of spacer elements and the filter element attached to each spacer element are positioned above the hopper;
- and
- a dirty air inlet configured to deliver a dirty air stream into the dirty air chamber along a dirty air flow axis, wherein at least a portion of particulate matter entering the dirty air chamber through the dirty air inlet falls into the hopper under the force of gravity;
- wherein the dirty air flow axis does not extend through any filter elements of the plurality of filter elements;
- and wherein the dirty air flow axis extends through or passes at least one spacer element of the plurality of spacer elements at a location between the clean air inlet and the clean air outlet of the at least one spacer element.
5 more elements
A filter system comprising:
- a housing comprising a tubesheet separating the housing into a dirty air chamber, a clean air chamber, an end wall panel located across the dirty air chamber from the tubesheet, and a hopper located below the dirty air chamber;
- a plurality of spacer elements attached to the tubesheet, wherein each spacer element of the plurality of spacer elements comprises a clean air inlet and a clean air outlet, and wherein the clean air outlet of each spacer element of the plurality of spacer elements is attached to the tubesheet;
- a plurality of apertures in the tubesheet, wherein the clean air outlet of each spacer element of the plurality of spacer elements is positioned over an aperture of the plurality of apertures in the tubesheet such that air passing from the dirty air chamber into the clean air chamber through each spacer element of the plurality of spacer elements passes through the aperture;
- a plurality of filter elements, wherein each filter element of the plurality of filter elements is attached to the clean air inlet of one spacer element of the plurality of spacer elements, wherein each spacer element of the plurality of spacer elements and the filter element attached to each spacer element are positioned above the hopper;
- and
- a dirty air inlet configured to deliver a dirty air stream into the dirty air chamber along a dirty air flow axis, wherein the dirty air flow axis extends through the hopper, wherein the dirty air inlet comprises a perimeter where the dirty air inlet enters the dirty air chamber, wherein a projection of the perimeter parallel to the dirty air flow axis through the dirty air chamber does not intersect any filter elements of the plurality of filter elements.
3 more elements
A filter system comprising:
- a housing comprising a tubesheet separating the housing into a dirty air chamber, a clean air chamber, an end wall panel located across the dirty air chamber from the tubesheet, and a hopper located below the dirty air chamber;
- a plurality of spacer elements attached to the tubesheet, wherein each spacer element of the plurality of spacer elements comprises a clean air inlet and a clean air outlet, and wherein the clean air outlet of each spacer element of the plurality of spacer elements is attached to the tubesheet;
- a plurality of apertures in the tubesheet, wherein the clean air outlet of each spacer element of the plurality of spacer elements is positioned over an aperture of the plurality of apertures in the tubesheet such that air passing from the dirty air chamber into the clean air chamber through each spacer element of the plurality of spacer elements passes through the aperture;
- a plurality of filter elements, wherein each filter element of the plurality of filter elements is attached to the clean air inlet of one spacer element of the plurality of spacer elements, wherein each spacer element of the plurality of spacer elements and the filter element attached to each spacer element are positioned above the hopper;
- and
- a dirty air inlet configured to deliver a dirty air stream into the dirty air chamber along a dirty air flow axis, wherein the dirty air flow axis extends through the hopper, wherein at least a portion of particulate matter entering the dirty air chamber through the dirty air inlet falls into the hopper under the force of gravity, and
- wherein the dirty air inlet comprises a perimeter where the dirty air inlet enters the dirty air chamber, wherein a projection of the perimeter parallel to the dirty air flow axis through the dirty air chamber does not intersect any filter elements of the plurality of filter elements.
4 more elements
Dependencies are inferred from the claim text.