Dual-filter electrically enhanced air-filtration apparatus and method
AssigneeStrionAir, Inc.
InventorPeter J. McKinney
Life of this patent
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Abstract
A dual-filter electrically enhanced air-filtration apparatus and method are described. One embodiment includes an upstream electrically enhanced filter; a downstream electrically enhanced filter; a first control electrode adjacent to an upstream side of the upstream electrically enhanced filter; a second control electrode adjacent to a downstream side of the downstream electrically enhanced filter; and an ionizing electrode disposed between the upstream and downstream electrically enhanced filters, the ionizing electrode having an electrical potential with respect to the first and second control electrodes. Optional field electrodes may be included to enhance the electric fields associated with the upstream and downstream electrically enhanced filters.
Claims18
An air-filtration apparatus, comprising:
- an upstream electrically enhanced filter;
- a downstream electrically enhanced filter;
- a first control electrode adjacent to an upstream side of the upstream electrically enhanced filter;
- a second control electrode adjacent to a downstream side of the downstream electrically enhanced filter;
- an ionizing electrode disposed between the upstream and downstream electrically enhanced filters, the ionizing electrode having an electrical potential with respect to the first and second control electrodes;
- a first field electrode disposed between the ionizing electrode and a downstream side of the upstream electrically enhanced filter;
- and
- a second field electrode disposed between the ionizing electrode and an upstream side of the downstream electrically enhanced filter;
- wherein each of the first and second field electrodes has an electrical potential between that of the ionizing electrode and that of the first and second control electrodes.
An air-filtration system, comprising:
- a filter assembly including:
- an upstream electrically enhanced filter;
- a downstream electrically enhanced filter;
- a first control electrode adjacent to an upstream side of the upstream electrically enhanced filter;
- a second control electrode adjacent to a downstream side of the downstream electrically enhanced filter;
- and
- an ionizing electrode disposed between the upstream and downstream electrically enhanced filters, the ionizing electrode having an electrical potential with respect to the first and second control electrodes;
- a blower configured to cause air to flow through the filter assembly in a downstream direction;
- a first field electrode disposed between the ionizing electrode and a downstream side of the upstream electrically enhanced filter;
- and
- a second field electrode disposed between the ionizing electrode and an upstream side of the downstream electrically enhanced filter;
- wherein each of the first and second field electrodes has an electrical potential between that of the ionizing electrode and that of the first and second control electrodes.
Dependencies are inferred from the claim text.