Cyclonic air filter assembly for an engine
US12251655B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 28, 2023 |
| Grant date | Mar 18, 2025 |
| Priority date | — |
| Expiry date | Jul 28, 2043 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2265/026
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An air filter assembly includes a housing having an interior surface that defines an interior volume, a filter element positioned within the interior volume and having a filter media, an air intake formed in the housing, a debris outlet formed in the housing, a filtered air outlet formed in the housing, and a plurality of ribs. The filter element is spaced from the interior surface so that a gap is formed between the filter element and the interior surface to allow air to flow between the filter element and the interior surface. The plurality of ribs extend into the interior volume of the housing so that air flowing from the air intake is directed into the gap and around the filter element to complete a cyclonic filtering pass before flowing along a second airflow pass through the filter element. The outlet passage is configured to direct filtered air into a third airflow pass in a direction opposite to the second airflow pass.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.