Self-cleaning air filter
AssigneeMaradyne Corporation
InventorJason D. Troxell
Life of this patent
Estimating the term…
Abstract
A system and method to control cleaning of an associated air filter apparatus is disclosed. Air flow across the associated air filter is estimated using a pressure sensor disposed at an inlet port of the associated air filter and a pressure sensor disposed at an outlet port of the associated air filter. Further, an optimal air flow across the associated air filter is calculated. The optimal air flow results in optimal filtering efficiency. The associated air filter is then periodically cleaned at a rate determined from the difference between the estimated air flow and the calculated optimal air flow to move air flow towards the optimal air flow.
Claims20
A system for controlling cleaning of an associated air filter apparatus, said system comprising:
- processing circuitry configured to:
- estimate air flow across the associated air filter using a pressure sensor disposed at an inlet port of the associated air filter and a pressure sensor disposed at an outlet port of the associated air filter;
- calculate an optimal air flow across the associated air filter, the optimal air flow resulting in optimal filtering efficiency;
- and
- periodically clean the associated air filter at a rate determined from the difference between the estimated air flow and the calculated optimal air flow to move air flow towards the optimal air flow.
A method for controlling cleaning of an associated air filter apparatus, said method performed by processing circuitry and comprising:
- estimating air flow across the associated air filter using a pressure sensor disposed at an inlet port of the associated air filter and a pressure sensor disposed at an outlet port of the associated air filter;
- calculating an optimal air flow across the associated air filter, the optimal air flow resulting in optimal filtering efficiency;
- and
- periodically cleaning the associated air filter at a rate determined from the difference between the estimated air flow and the calculated optimal air flow to move air flow towards the optimal air flow.
A self-cleaning air filter apparatus connected to a compressed air source, said apparatus comprising:
- a filter element configured to filter air flowing through the air filter apparatus;
- a pulse valve connected to the compressed air source and configured to selectively release a pulse of compressed air into the filter element to clean the filter element;
- and
- a control module connected to the pulse valve and configured to:
- estimate air flow across the air filter apparatus using a pressure sensor disposed at an inlet port of the air filter apparatus and a pressure sensor disposed at an outlet port of the air filter apparatus;
- calculate an optimal air flow across the air filter apparatus, the optimal air flow resulting in optimal filtering efficiency;
- and
- using the pulse valve, periodically release a pulse of compressed air at a rate determined from the difference between the estimated air flow and the calculated optimal air flow to move air flow towards the optimal air flow.
Dependencies are inferred from the claim text.